CN107018554B - A data transmission method, device and intelligent terminal - Google Patents

Abstract

Embodiments of the present invention disclose a data transmission method, a device, and an intelligent terminal, wherein the method includes: when the first terminal detects a data transmission instruction, displaying a user interface including a transmission identifier; During the selection operation of the transmission identifier, the data to be transmitted is sent to the second terminal through the second connection; wherein, the first terminal establishes a first connection with the second terminal based on the first connection policy, and The connection data is exchanged through the first connection, and a second connection between the first terminal and the second terminal is established according to the second connection strategy and the exchanged connection data. By adopting the embodiment of the present invention, a connection mode such as Bluetooth with low power consumption can be used as the first connection, and data is exchanged through the first connection to establish a connection mode such as WiFi that can transmit a large amount of data quickly, which not only saves the terminal Energy consumption, and can meet the user's requirements for fast data transmission and large capacity.

Description

A data transmission method, device and intelligent terminal

technical field

The present invention relates to the technical field of computer applications, and in particular, to a data transmission method, a device and an intelligent terminal.

Background technique

With the development of computer technology and electronic technology, intelligent terminals can provide users with services of various functions and help users in their work, study and life. In a general smart terminal, the corresponding functions can be experienced by providing system services or installing functional applications by users.

The data transmission service provided by the intelligent terminal is one of the services commonly used by users. At present, data transmission between two terminals is generally based on a mobile communication network and a computer network, and is realized by an instant messaging application. How to better perform data transmission between two terminals has become a hot research issue.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a data transmission method, a device and an intelligent terminal, which can simply perform data transmission between terminals.

On the one hand, an embodiment of the present invention provides a data transmission method, including:

When the first terminal detects the data sending instruction, it displays a user interface including the transmission identifier;

The first terminal sends the data to be transmitted to the second terminal through the second connection when detecting the selection operation on the transmission identifier;

Wherein, the first terminal establishes a first connection with the second terminal based on a first connection strategy, exchanges connection data through the first connection, and establishes the connection data according to the second connection strategy and the exchanged connection data. A second connection between the first terminal and the second terminal.

Correspondingly, an embodiment of the present invention also provides a data transmission device, including:

a display module, used for displaying a user interface including a transmission identifier when a data sending instruction is detected;

a transmission module, configured to send the data to be transmitted to the second terminal through the second connection when the selection operation on the transmission identifier is detected;

The connection module is configured to establish a first connection between the first terminal and the second terminal based on the first connection strategy, exchange connection data through the first connection, and establish all the connection data according to the second connection strategy and the exchanged connection data. the second connection between the first terminal and the second terminal.

Correspondingly, an embodiment of the present invention also provides an intelligent terminal, including a processor, a first communication interface, and a second communication interface, wherein:

The processor is configured to call the first communication interface to establish a first connection with the second terminal, and to exchange connection data through the first connection, and to call the second communication interface according to the second connection strategy and the interactive data. The connection data establishes a second connection between the first terminal and the second terminal;

The processor is further configured to display a user interface including a transmission identifier when detecting a data sending instruction, and when detecting a selection operation on the transmission identifier, send the data to be transmitted to the first through the second connection. Two terminals.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

Description of drawings

1 is a schematic diagram of a user interface according to an embodiment of the present invention;

2 is an interactive schematic diagram of establishing a connection between a first terminal and a second terminal according to an embodiment of the present invention;

3 is a schematic flow chart of establishing a Bluetooth connection according to an embodiment of the present invention;

4 is a schematic diagram of another user interface according to an embodiment of the present invention;

5 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

6 is a schematic flowchart of a first connection establishment method according to an embodiment of the present invention;

7 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an intelligent terminal according to an embodiment of the present invention.

Detailed ways

In this embodiment of the present invention, in order to reduce user operations, when it is detected that the user needs to send certain data, a user interface containing a transmission identifier is displayed. The established second connection sends the data, as shown in FIG. 1, including the picture data 101 to be transmitted selected by the user and the transmission interface identification 102 provided to the user. Once the user clicks the transmission interface identification 102, based on the established first The second connection starts to transmit data. In each of the following embodiments, the transmitting end may be regarded as a first terminal, and the receiving end may be regarded as a second terminal that can establish a first connection and a second connection with the first terminal.

In addition, the embodiment of the present invention adopts an automatic pairing method, and establishes a second connection based on the first connection. Establishing a second connection with a relatively high power consumption saves power consumption to a certain extent.

In one embodiment, the first connection may be established by using Bluetooth BLE automatic scanning, and the second connection may be established by means such as WiFi P2P (WiFi-based peer-to-peer transmission). Since the scanning operation of the connection point identification in the early stage of WiFi P2P consumes a large amount of power, the WiFi P2P method can better transmit data, especially large data. Therefore, in the embodiment of the present invention, the two terminals of the data transmission are determined based on Bluetooth, and the first connection is established, and the WiFi P2P connection is established on the basis of the first connection, which saves the power consumption in the connection data interaction stage of the WiFi P2P, which is convenient Better transfer of data between terminals.

In the embodiment of the present invention, the basic interaction process of establishing the second connection to transmit data may roughly include three stages, that is, Bluetooth scanning, Bluetooth connection, and establishing a WiFi P2P connection.

In one embodiment, as shown in FIG. 2 , it is an interactive schematic diagram of establishing a connection between a first terminal and a second terminal according to an embodiment of the present invention. In FIG. 2 , the connection between the first terminal and the second terminal is roughly described. The process of establishing a connection.

In this embodiment of the present invention, the first terminal acts as a data sending end, and may trigger the execution of the steps shown in FIG. 2 when detecting the selection operation of the transmission identifier, and establish the first terminal and the second terminal serving as the receiving end In other embodiments, the second connection between the first terminal and the second terminal may be triggered to execute the steps shown in FIG. Second connection, so that the transmission of the data to be transmitted can be directly started when the selection operation of the transmission identifier is performed subsequently. The second connection needs to enable functions such as Bluetooth and WiFi, so as to facilitate cooperation with the first terminal. After enabling the corresponding function, the second terminal enters the advertisement mode, and establishes a GATT (Generic Attribute Profile, common attribute protocol) service, etc., in order to establish the second connection.

As shown in FIG. 2 , the first terminal first scans the devices in the advertisement stage, the first terminal sends a scan data request in S201 , and receives data returned by other terminals including the second terminal in S202 . The first terminal selects and determines the second terminal from the returned data in S203, and sends a connection request to request to connect to the second terminal in S204. In S205, a bidirectional communication connection between the first terminal and the second terminal, that is, the first connection, is established. After the first connection is established, the first terminal sends the data requesting the establishment of the transmission connection to the second terminal on the channel of the first connection in S206. After receiving the request for establishing the transmission connection, the second terminal obtains an instruction for establishing the transmission connection, and enters the WiFi connection stage. The second terminal returns the request data to the first terminal in S207. After receiving the request data, the first terminal obtains an instruction to establish a transmission connection and enters the WiFi connection stage. The first terminal sends an instruction to enter the transmission connection stage in S208, and the second terminal returns a sending success receipt in S209. The first terminal also enters the WIFI connection stage after receiving the receipt of the instruction to establish the transmission connection. So far, the establishment of the second connection between the first terminal and the second terminal is completed.

In one embodiment, the advertisement packet for Bluetooth BLE advertisement can carry 31 bytes of data. In order to display the names of all receivers at this stage so that the second terminal can be selected from them, it is necessary to carry the Bluetooth MAC address and the connection identifier of the receiver. For example the name of the receiver.

As shown in Table 1, three advertisement modes in which the terminal advertises its connection identification are shown.

Table 1:

advertising model interval (milliseconds) Power consumption low latency 100 high balance 250 balance high latency 1000 Low

Based on Table 1, taking power consumption and success rate into consideration, strategies that can be adopted for advertisements include: the total duration of advertisements is temporarily not set for advertisements at the receiving end (as long as the user enables the data transmission function in the embodiment of the present invention, it is always on, and Until the user turns off the data transmission function switch. After confirming that the standby can be woken up through the connection, it can be advertised and scanned), and set the low-latency mode in the first 60 seconds to increase the probability of scanning, and the subsequent time is set to the balance mode, Reduce power consumption. After Bluetooth completes the connection and confirms that the WIFI is connected, the advertisement on the sender stops to reduce power consumption, and the interference between Bluetooth and wifi can also be reduced.

The embodiment of the present invention also provides processing for possible exceptions, which may include: an exception that the data of the advertisement packet of the receiving end is too large: this kind of abnormality can be avoided by strictly controlling the name of the receiving end. Too many advertisements on the receiver side and other internal anomalies: Since the total number of Bluetooth BLE advertisements is limited, for example, a maximum of 10 advertisements are supported, and the advertisement will fail after the limit is exceeded. The abnormal situation can be avoided by rescanning. In one embodiment, the advertisement is retried or scanned three times after a delay. The delay time is set according to the gradient, for example, set the first retry to wait 2s, the second time to 5s, and the second time to wait for 2s. Three times for 10s, retry three times and still abnormal, turn off the Bluetooth and turn it on again. The shutdown and restart can be performed only once, and the user can be prompted after re-opening the Bluetooth and retrying three times if it fails.

In one embodiment, as shown in Table 2, three modes in which the terminal is scanning the connection identifier are shown.

Table 2:

scan mode windows (mills) interval (mills) Power consumption Low power consumption 500 5000 Low balance 2000 5000 balance low latency 5000 5000 high

The scan time set by the sender for a single time can be 60s, the first 20s can be set to low-latency mode, and the subsequent time can be set to balanced mode. After Bluetooth completes the connection and determines that the WiFi connection (second connection) is established, the scanning operation at the receiving end stops to reduce power consumption, and the interference between Bluetooth and WiFi can also be reduced. Scanning mainly has the exception that the advertising device is not scanned after timeout. Considering the user interaction scenario, it is not necessary to give the user a failure prompt, and continue to scan and retry until the user exits the option to send interface.

In the Bluetooth connection establishment stage, that is, the establishment stage of the first connection, the scanned receiving end will make a connection request after the user makes a selection to determine the data transmission connection. Connections for data transmission can be divided into single-receiver connections and multi-receiver connections. For the single-terminal connection (first connection) between the first terminal and the second terminal, the receiving end acts as the server of GATT, the sending end (the first terminal) starts the connection, the connection is established and the server (the second terminal) is found. After that, the server and the sender negotiate the underlying data transmission connection mode, mainly including three pieces of information: WiFi connection mode, including P2P or hotspot connection; transmission server information (WiFi P2P MAC address or hotspot name and password), transmission client Information (used by the server to identify the sender of the connection, cannot be controlled during the connection process, only the sender information can be added to the transmission data to process the data of the specified user); the command to open the connection (WIFI P2P scan Discovery command, or turn on hot command). Transmission packet format Characteristic (UUID, value).

As shown in FIG. 3 , it is a schematic flow chart of establishing a Bluetooth connection according to an embodiment of the present invention. After scanning the corresponding one or more connection identifiers of the receiving end, the first terminal selects a target connection identifier in S301, where the target connection identifier is the connection identifier of the second terminal that the user desires as the receiving end. The first terminal requests to establish a connection in S302, that is, requests to establish a first connection. The first terminal judges whether the connection is successful in S303, executes S304 and S305 if successful, executes S306 if not successful, judges whether the number of times exceeds the threshold of the number of reconnections in S306, and if so, determines that the connection fails in S307 . If it does not exceed, then re-request to establish the first connection, execute the S302, and perform reconnection processing.

In S305, connection monitoring is performed on the established first connection, and in S308, it is judged whether the first connection is interrupted, if not, the monitoring is continued, and S305 is executed. If the first connection is interrupted, S306 is executed to determine whether the connection before the interruption has been the Nth interrupted reconnection, and if so, it is determined that the connection fails. If not, execute S302 again, and execute the reconnection after the next interruption.

In S304, based on the established first connection, the sending end may send a data request to the receiving end, and the data request is used to confirm to the receiving end whether the receiving end can start to receive data, and after sending the data request, start timing , in S309 , it is determined whether the confirmation information returned by the receiving end confirming that the data can be received is received within the preset time range. If no confirmation information is received within the preset time range, execute S310 to determine whether the number of times of sending data requests exceeds the preset times threshold, and if not, execute S304 again. If the number of times exceeds the threshold, S311 may be executed to determine that the connection fails. After it is determined that the connection fails, the first connection may be re-requested to perform the S302.

If the judging result in S309 is that the confirmation information is received, then execute S312, in S312, start sending the relevant instruction for establishing the second connection between the first terminal and the second terminal, after sending the relevant instruction, start timing, In S313, it is judged whether the receipt information of the receiving end is received within the preset time range, and the receipt information is used to indicate that the receiving end starts to receive data and instructions, and can reply the relevant data for establishing the second connection, instruction. If the receipt information of the receiving end is received, S314 is executed to trigger the connection process of entering the second connection. If the receipt information from the receiving end is not received, execute S315 to determine whether the number of times of sending the relevant instruction of the second connection exceeds a preset number of times threshold, and if not, execute S312 again. If the preset times threshold is exceeded, S311 is executed to determine that the connection fails. After it is determined that the connection fails, the first connection may be re-requested to perform the S302.

In the case of multi-receiver connections, when the user selects multiple terminals in the scanned connection identifiers as the receiving terminals, the connection identifiers of all the receiving terminals that need to be transmitted are incorporated into a queue, and all connection identifiers in the queue are sequentially based on the queue. Perform connection processing between the sender and the receiver. When the terminal corresponding to the determined connection identifier cannot establish a connection, and the connection cannot be successfully established through the above exception handling process, you can restart the Bluetooth scan and wait for 5s. If the same connection identifier is not scanned, the connection cannot be established. The connection identifier is placed in another retry queue, and the next receiver connection is continued. If a matching device is found, the connection processing is performed again. When the selected connection identifiers have completed the reconnection process, the Bluetooth device performs another 5s scan, and compares it with each connection identifier in the retry queue. If the connection identifier in the retry queue can be scanned again, the corresponding The first connection processing of the terminal indicated by the connection identifier.

After the establishment of the first connection is completed in the above manner, the second connection processing is performed on the basis of the first connection. In one embodiment, by analyzing the underlying connection information obtained in the Bluetooth connection, that is, obtaining the connection type (WiFi P2P or WiFi hotspot) of the above-mentioned second connection, the currently supported best connection mode can be selected to establish the second connection , that is, according to the data transmitted by the first connection, the first terminal selects the connection mode of WiFi P2P or the connection mode of WiFi hotspot to establish the second connection.

When the WiFi P2P (second connection) is established, both the first terminal and the second terminal can enter the scanning Discovery mode to perform state monitoring of the WiFi P2P connection. The sender filters all scanned peers (in the P2P connection, each sender and receiver are called peers), selects the device whose MAC address matches the address sent by Bluetooth BLE to connect, and can specify the receiver as the connection server. Among them, in the above-mentioned Bluetooth BLE connection, the MAC address of the receiving end is exchanged between the transmitting end and the receiving end, so that when the transmitting end establishes a WiFi P2P connection for scanning, it can be scanned from the connection point identifiers of multiple receiving ends ( MAC address), directly find the connection point identifier of the receiver that wants to transmit data.

In one embodiment, the exception handling during WiFi P2P connection includes: when scanning Discovery, an exception that does not support P2P may occur. If the sender cannot judge in advance, the exception handling can be performed again through the above-mentioned Bluetooth connection (first connection) to renegotiate the underlying data transmission connection mode, or perform a Bluetooth connection again to re-determine the connection type of the second connection. The abnormal situation that the current P2P device is busy may occur when scanning Discovery and the initiation of the connection. In order to overcome this abnormal situation, you can set the current request delay (the first retry of the gradient can wait for 15s, wait for 25s for the second time, and wait for 35s for the third time) and try again. The number of re-requests does not exceed three times, and it can be confirmed as a connection failure if it exceeds three times. The timeout period for establishing a transmission connection can be 30s. If the device is not detected, it will retry directly. The total number of retries should not exceed three times. If it is not detected after three times, it can be determined that the connection fails. It should be noted that all WiFi P2P connections are in the form of broadcast, which can unify the process into a separate thread for synchronous processing to avoid abnormal status.

After the WiFi P2P connection is established, the possible exceptions and their processing methods include: the connection is abnormally disconnected, start the monitoring task after the WiFi P2P direct connection is established, and immediately reconnect when the disconnection is detected. After the reconnection is successful, the data will be retransmitted. If the reconnection fails, try again three times. If it still cannot be established, it is determined that the transmission fails.

When a WiFi P2P connection between the sender and multiple receivers needs to be established, and the receiver that is currently executing cannot establish the second connection, the next connection is directly performed, and the temporary failure is performed at the end to perform the reconnection process. Wherein, the case where the sender establishes connections with multiple receivers is handled as follows.

After the second connection between the sending end (the first terminal) and the receiving end (the second terminal) is established, the corresponding file can be transmitted. After the second connection is established, the transmission adopts the network application program interface socket operation. In one embodiment, the instruction transfer creates two socket queues, one of which needs to support file transfer at the same time. The purpose of creating two socket transmission instructions is that, first, during transmission, there may be some data that needs to support message synchronization queues. At this time, the data sent first will be delivered first, and the data sent later will be delivered, so a synchronization message can be created. Queue, in which information and files that need to be synchronized are transmitted. When the synchronous queue transmits data with a large amount of data, it will block the queue, so an asynchronous asynchronous message queue can be created at the same time to ensure that the message can also be delivered to the other party in time. This asynchronous is relative to the previous synchronous queue. Asynchronous, but its own queue also maintains a sequential relationship. Asynchronous message queue supports two-way, which is used to support the interaction of status information and instructions between the two sides of the connection, such as file arrival, whether to agree to receive, receiving status, etc.

In the embodiment of the present invention, the transmission of data such as files can create three socket queues, including the above-mentioned synchronous message queue (one connection), asynchronous message queue (one connection), and an asynchronous file queue. The three socket connections use It is the same queue, and it is not guaranteed that the one that joins the queue first will be transmitted first.

The encoding and decoding formats negotiated between the first terminal and the second terminal are shown in the following tables, wherein Table 3 is the instruction encoding format, Table 4 is the file encoding format, and Table 5 is the heartbeat information encoding format.

table 3:

Table 4:

table 5:

Version DataType Body Length Resp/Req

In the above-mentioned Tables 3, 4 and 5, the first three columns are header information, and the description of the header information is as described in Table 6 below. Wherein, in the description in Table 6 below, the length of the data packet does not include the previous version number and data type length. The descriptions of other columns in the instruction encoding format are described in Table 7 below. Regarding the file encoding format, the descriptions of other columns are described in Table 8 below.

Table 6:

name type of data illustrate Version Int the version number of the packet DataType Int data type (see data type description) BodyLength Long length of packet

Table 7:

Table 8:

Further, in this embodiment of the present invention, descriptions for the various data types mentioned above are as described in Table 9 below.

Table 9:

name value illustrate DATA_TYPE_COMMAND 0x00001000 Instruction data type DATA_TYPE_FILE 0x00002000 file data type DATA_TYPE_HEARTBEAT 0x00004000 Heartbeat data type

In addition, in the data encoding, the STRING string type field adopts 1 INTEGER as the length field to identify the length of the number of bytes occupied by the character string (excluding the 4 bytes occupied by the length field). Strings are encoded in UTF-8. Special: empty string "" length field is 0, no data. That is, the empty string also occupies 4 bytes in length. The INTEGER integer field occupies 4 bytes, and the encoding method is used with high order bits first. The value range is 0 to 4294967295. The LONG long integer field occupies 8 bytes, and adopts the encoding method of high order. The value range is 0 to 18446744073709551615.

In the embodiment of the present invention, the monitoring connection state during the transmission process is set to set the Socket timeout monitoring, so as to realize automatic reconnection after disconnection. Set up two transmission queues, one to be transmitted and one to be transmitted. When the transmission starts, the task is moved from the to-be-transmitted queue to the transmission queue. When the receiver sends back a successful command, the task of the transmission queue is removed. If the connection is interrupted, the transmission Timeout or subsequent file verification failures will retransmit the tasks in the transmission queue. Resuming file transfers will also be considered. The data of the queue to be transmitted can be transmitted through the three socket queues mentioned above.

In the embodiment of the present invention, the transmitted data can also be verified, and the data verification can be performed by comparing the md5 value. If the receiving end judges that it is inconsistent, the sending end is notified through the command channel to re-send the data, which is about to transmit the queue. The task in is re-added to the pending transmission queue. For data transmission, it is also possible to consider adding a compression module to compress the data to be transmitted to improve transmission efficiency.

In this embodiment of the present invention, most of the data content can be transmitted as files, especially: direct transmission of text, contacts, and bookmarks (directly transmitted as character streams, limited in size, and processed in the form of files over 1M), the supported types and The processor is dynamically loaded as a Processor (similar to the proxy agent of backup and restoration and cloud services) to provide type analysis and data processing methods. The type of the loader that cannot be found is processed uniformly according to the file.

It should be noted that the specific values such as the specific time value, the number of times, and the file data volume value mentioned in the above-mentioned various positions are only examples. In other embodiments, other values can also be used. In the current advertising mode, the interval time value can also be 150 milliseconds, etc., and the number of reconnections can be the three times mentioned above, or four times, five times, etc. The above-mentioned "more than 1M is processed in file form" , in other embodiments, it can also be processed in the form of a file when it exceeds 2M.

In this embodiment of the present invention, a limit on the size of the transmitted data is also included. The sender calculates the total size of the selected file, transmits it to the receiver through the command channel, the receiver calculates its own remaining space, and then replies to the sender. If the storage space of the receiving end is sufficient, the corresponding steps of file transfer can be performed.

In the embodiments of the present invention, the processing methods and functions described in the foregoing embodiments may be implemented in the form of a system control, or implemented by an executable application program. The range of data that can be transmitted includes different types of files such as photos, videos, music, documents, compressed packages, installation packages, folders, texts and contacts, and URLs. Data for installed non-system applications is not transferred. Among them, when used as a system control, a transmission identifier that triggers the system control can be provided at a prominent position in the user interface. Once the transmission identifier is clicked, the system control starts to work, executes the various processing methods mentioned above, and finally realizes the data transmission and other functions. The control center of the intelligent terminal adds an entrance to open the system control to control the permission to receive files, that is, the permission to control whether to receive files.

When the smart terminal is used as the receiving end, the received files can be stored in the specified folder, and the principle of receiving and storing is to place them in the corresponding folder set by the system according to the file type. In one embodiment, pictures may be stored in a preset screenshot (Sceenshots) folder, a camera (Camera) folder, and other pictures (Pictures) folders preset in the terminal; videos may be stored in a preset camera shooting file correspondingly folder, other video (Movies) files, etc.; music is stored in the preset Music (Music) folder; URLs are stored in the preset browser favorites; text can generate a note or TXT file to record the transmission text, etc.; the contact information is stored in the contact folder of the terminal. For other file types not mentioned, you can store the other file types through a folder with a transfer path, such as a folder named "receive XXX files".

In one embodiment, the sending processing logic of the files in the album may be performed according to the user's selection. First, select thumbnails or single pictures and videos in the album to send, and enter the link and transfer process to continue, cancel and select file operations. The range of files selected again is the content to be sent next time, regardless of the content being sent. As shown in FIG. 4 , the user selects two pictures 401 and 402 in the album, and provides the transmission entry, that is, the transmission identifier, on the user interface. After the user clicks and selects the transmission identifier, he starts to communicate with the users of one or more receivers (each receiver can be regarded as a second terminal) that has established the second connection, such as user A403 and user B in FIG. 4 .

When sending a single large image, you can select other photos to send together. When selecting multiple photos to send, you need to confirm whether the selected photos are suitable, especially for the situation where there are many continuous photos. Photos need to be sent to multiple people, but each person has a different picture range to avoid multiple connections. Further, there are many files with high photo similarity, and the files to be transmitted need to be selected according to the content and quality of the photos. Sending a single large image can well select photos that meet the user's requirements in terms of quality and so on. When selecting the photos you want to send through thumbnails, you can select multiple photos at the same time.

The range and sequence of the files previewed by the thumbnails may be consistent with the range and sequence of the files that can be sent by the user determined when the system control is activated. The size of the thumbnail preview file can be adjusted according to the preset size rules. In one embodiment, all pictures are proportionally enlarged to a height of 232DP, a maximum length of 324DP and a minimum length of 36DP. If the height or length exceeds the maximum or minimum requirements, the middle part of the picture can be cut out according to the maximum requirements.

After the system control is activated in the album of the smart terminal, the selected pictures and videos can be continued to be added or canceled, and then continue to be sent. For other multi-selection or single file sending, once the system control is activated, new data cannot be selected in this sending. When starting to send a file, it can prompt the corresponding receiver how to operate.

The sending user can be displayed on the sending end, that is, information such as the user ID of the second terminal can be displayed, and the target user to which the file sent this time is to be sent can be clearly known. In one embodiment, the sending end may display all user identifiers corresponding to the second terminals that have established the second connection. The user identifiers may be device identifiers such as a registered account name or a device name of an intelligent terminal, and the user identifiers may also include corresponding identifiers. The avatar and other identifiers used by the user. After clicking on the displayed user identifier of the second terminal (for example, after clicking on the avatar), the start of data transmission through the second connection is triggered, and clicking the user identifier again may determine that the transmission of the corresponding data is canceled. The user can also select multiple user IDs at the same time, and can simultaneously transmit the selected file data to the second terminals corresponding to the multiple user IDs.

In one embodiment, a corresponding user interface for prompting the transmission status may be provided, so that the user can clearly know the progress of the transmission and can cancel the transmission. In one embodiment, after clicking on the user ID (which can be regarded as a transfer ID) to start data transfer, any one or more status information of waiting for transfer, canceling transfer, transfer progress, and transfer completion can be displayed in the user interface. Clicking on the user ID (for example, clicking on the user's avatar) can also suspend the current data transmission with all recipient users. When the transmission is suspended, the transmitted file data will not be deleted.

In one embodiment, after the receiving end opens the system control or the data transmission application, the receiving end can display any one or more of the file type, file quantity, and file size that the sending end needs to transmit. Even if the second connection between the two parties is established, when the sender sends data, the receiver can choose to accept or reject the data. The receiving end can also view information such as the progress of receiving data. After the transfer is complete, the user can quickly view the files that have been received. The user can choose to open the received file directly, and according to different file types, can directly call the corresponding application to open the transferred file. Among them, the transmitted text is opened by a text application such as a sticky note, and the picture is opened by an application that manages pictures, such as an album. Videos are opened and played using an app such as a video player. Music opens and starts playing using an app such as a local music player. Contact information is directly opened using the contact application of the terminal, and it is in the contact details interface. The URL is opened directly with the browser application. Other files with paths are opened directly in the file management application.

The data transfer process can run in the background, and the network experience is guaranteed to be normal. After the sender user runs in the background and transmits data, a notification indication can be made in the notification bar of the smart terminal. The notification indication is used to indicate the current data transmission status to the user, and clicking the notification indication can enter the detailed data transmission interface.

After the sender opens the system control or application for the first time, it can prompt the user to use Bluetooth and wlan permissions. After the user clicks to agree, the subsequent connection between the terminals can automatically enable the corresponding functions of Bluetooth and WiFi.

In addition, after obtaining the user's authorization for data statistics, the embodiment of the present invention may also perform statistics on the data, including statistical determination of the model of the sender, the model of the receiver, the file type, the number distribution of different file types, and the one-time transmission of files. Any one or more of the proportion of the number of files, the proportion of users in the transfer folder, the distribution of file transfer speeds, the success rate of transfer, the number of transfers/number of people, the reasons for transfer failures, and the statistics of schedule operation paths. Based on these statistical data, the data transmission method of the embodiment of the present invention is optimized.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

The data transmission method, device, and intelligent terminal according to the embodiments of the present invention are described below.

Please refer to FIG. 5 , which is a schematic flowchart of a data transmission method according to an embodiment of the present invention. The method in the embodiment of the present invention may be executed in a smart terminal, and the smart terminal may be a smart phone, a tablet computer, a smart wearable Equipment and other terminals with data transmission function. These smart terminals have low-power data transmission functions such as Bluetooth, and include data transmission functions such as WiFi that can quickly transmit various data. In this embodiment of the present invention, the first terminal is used as a sending end and the second terminal is used as a receiving end, and both terminals are configured with a system control or an application program that performs a data transmission processing function. The method of the embodiment of the present invention includes the following steps.

S501: A first terminal establishes a first connection with a second terminal based on a first connection policy. The first connection policy includes the type of the first connection to be established this time, and may also include processing rules when the connection fails, such as the number of reconnections, exception handling rules, and rules on how to remind the user. In an embodiment, the first connection policy mainly instructs to establish a Bluetooth connection type with low power consumption between the first terminal and the second terminal, and establish a Bluetooth connection between the first terminal and the second terminal. connect.

After the Bluetooth connection between the first terminal and the second terminal is successfully established, the following S502 is performed. If the first connection is not successfully established according to the first connection strategy, for example, the first connection cannot be established after multiple reconnections, then The user may be prompted that the first connection is unsuccessful, or the user may be further prompted for the reasons for the failure of the connection, such as the abnormal Bluetooth connection mentioned in the above embodiment.

The first connection policy may further include related rules of Bluetooth scanning and related rules of Bluetooth advertisement, including rules such as scanning frequency, scanning duration, connection identification advertisement frequency, advertisement duration and the like. Reference may be made to the descriptions of scanning and advertising in the above embodiments.

If the establishment of the first connection fails, the establishment of the first connection may be initiated again through a reconnection mechanism. In one embodiment, the first terminal does not receive a connection request from the second terminal after broadcasting the connection identifier.

In one embodiment, the first terminal scans, within a first time range, a connection identifier at a first scanning frequency based on the indication of the first connection strategy; the first terminal, based on the indication of the first connection strategy, Within the second time range, scan at the second scanning frequency to obtain the connection identifier; after the scanning is completed, the first terminal determines the target connection identifier from the respective connection identifiers obtained by scanning, and establishes a connection with the first terminal based on the target connection identifier. For the first connection between two terminals, the target connection identifier is the connection identifier of the second terminal.

Or, in an embodiment, the first terminal broadcasts the connection identifier of the terminal at the first broadcast frequency within a first time range based on the indication of the first connection policy; the first terminal is based on the first connection policy within the second time range, broadcast the connection identifier of the terminal at the second broadcast frequency; after the broadcast ends and the first terminal receives the connection request from the second terminal, it establishes a connection with the second terminal. The connection request is sent by the second terminal based on the scanned connection identifier broadcasted by the first terminal.

S502: The first terminal exchanges connection data through the first connection, and establishes a second connection between the first terminal and the second terminal according to the second connection policy and the exchanged connection data. After the first connection is successfully established, the connection data is exchanged through the first connection. The exchanged connection data includes all necessary data for establishing the second connection, such as the MAC address of the second terminal, the WiFi hotspot identifier, the connection password and other data. The second connection policy indicates the type of the second connection, and may also include the number of reconnections, exception handling rules, rules for how to notify the user of a connection establishment failure, and the like. The first connection may be a WiFi-based communication connection, such as a WiFi hotspot communication connection or a WiFi-based peer-to-peer P2P communication connection.

Wherein, when establishing the second connection, the first terminal selects the identification of the connection point interacted by the first connection from the identifications of the connection point used for establishing the second connection; The connection exchanges connection information with the second terminal corresponding to the connection point identifier, and establishes a second connection between the first terminal and the second terminal.

Since the data required to establish the second connection is all exchanged through the first connection with low power consumption, when establishing the second WiFi-based connection, after scanning the terminal that needs to establish the connection based on WiFi, the first connection is directly The connection is based on the data for establishing a connection that is interactively connected according to the scanning result, and completes a WiFi-based connection between the first terminal and the second terminal, including a WiFi P2P connection or a WiFi hotspot connection. In the case of WiFi connection, the power consumption of data interaction for the scanned terminal is generally much higher than the power consumption of data exchange based on low-power communication connection such as Bluetooth. Therefore, in the embodiment of the present invention, the power consumption for establishing the WiFi connection is saved. The power consumption generated by the data transmission after the second connection is established is substantially the same as the power consumption generated by the existing data transmission based on a WiFi hotspot or a WiFi P2P connection.

In this embodiment of the present invention, the type of the second connection may include at least a connection type of a WiFi hotspot and a connection type of WiFiP2P. In the interaction data based on the first connection, data indicating the connection type of the second connection may be included. In the S502, the second connection strategy is to select a connection type according to the indication of the interaction data, and further exchange data based on the selected connection type to establish a second connection.

The first terminal may perform the connection establishment step in advance before the first terminal detects the data sending instruction, so as to establish the connection between the first terminal and the second terminal in advance, and prepare the user of the first terminal to send the data to the second terminal at any time. data, the second terminal needs to open a system control for executing data transmission processing or open an installed application with a corresponding data transmission processing function, so that the first terminal can establish the first connection and the second connection. In other embodiments, the first terminal may also start to establish a connection between the first terminal and the second terminal when detecting the data sending instruction, so as to execute the current data sending instruction of the first terminal.

In one embodiment, the connection data interacted through the first connection includes any one or more of the following data: a connection type of the second connection to be established, and the connection type includes a point-to-point connection type or a WiFi hotspot connection type; client information required for establishing the second connection, the client information includes: connection point identification and authentication password, the connection point identification can be WiFi hotspot address, terminal MAC address, etc.; data packet format information; The trigger instruction for the second connection, the trigger instruction triggers the first terminal or the second terminal to start establishing the second connection, for example, triggers the first terminal or the second terminal to start opening the WiFi hotspot, and obtains the name and password of the WiFi hotspot, so as to facilitate access to WiFi hotspot.

S503: When detecting the data sending instruction, the first terminal displays a user interface including a transmission identifier. For the user interface, reference may be made to that shown in FIG. 1 , and the above-mentioned embodiments also include descriptions about the user interface, which will not be repeated here. The transmission identifier is configured with corresponding trigger logic, which is used to trigger and start a corresponding system control or application that executes data transmission processing, or is used to directly trigger the system control or application to start transmitting data.

S504: When detecting the selection operation on the transmission identifier, the first terminal sends the data to be transmitted to the second terminal through the second connection. After the user selects the transmission identifier through a selection operation such as a user click operation, the system control or application can finally transmit the data to be transmitted through the second connection by running in the background.

In other embodiments, after the selection operation is detected, S501 and S502 are executed, the steps of establishing the second connection between the first terminal and the second terminal are executed in the background, and S504 is executed to pass the data to be transmitted through the second connection. sent to the second terminal.

The data transmission format of the data to be transmitted, the configured transmission queue, the socket queue, and the operation processing of the second terminal for storing and opening the received data in a designated folder can all refer to the descriptions in the above embodiments.

In one embodiment, a first task queue and a second task queue are preset, and the sending the data to be transmitted to the second terminal through the second connection includes: sending the to-be-transmitted data stored in the first task queue to the second terminal. The transmission data is stored in the second task queue, and the data to be transmitted is stored in the first task queue; the data to be transmitted is obtained from the second task queue, and sent to the first task queue through the second connection. Two terminals; if it is detected that the data to be transmitted is not successfully sent through the second connection, the data to be transmitted stored in the first task queue is stored in the second task queue again, and the data to be transmitted is stored in the second task queue from the The data to be transmitted is obtained from the second task queue, and sent to the second terminal through the second connection. The first task queue and the second task queue correspond to the queue to be transmitted and the transmission queue mentioned in the above embodiment. Three transmission queues may be set to transmit data in the second task queue.

In one embodiment, the set three transmission queues include a synchronous message queue, an asynchronous message queue, and an asynchronous file queue. If the data to be transmitted acquired by the second task queue includes the first type of data, the first type of data is dumped into a preset synchronous message queue, and the data in the synchronous message queue is sent to the The second terminal; if the data to be transmitted obtained by the second task queue includes the second type of data, the second data is transferred to the preset asynchronous message queue, and the data in the asynchronous message queue is transferred through the second connection. The data is sent to the second terminal; if the data to be transmitted obtained by the second task queue includes the third type of data, the third type of data is transferred to the preset asynchronous file queue, and the asynchronous file is transferred through the second connection. The data in the queue is sent to the second terminal. For the description of the three transmission queues and corresponding types of data, reference may be made to the foregoing embodiments.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

Referring to FIG. 6 again, it is a schematic flowchart of a first connection establishment method according to an embodiment of the present invention. The method in the embodiment of the present invention may be executed in a smart terminal, corresponding to the above S501, and the smart terminal may be a smart phone , tablet computers, smart wearable devices and other terminals with data transmission functions. In particular, these smart terminals have low-power data transmission functions such as Bluetooth, and include data transmission functions such as WiFi that can quickly transmit various data. In this embodiment of the present invention, the first terminal is used as a sending end and the second terminal is used as a receiving end, and both terminals are configured with a system control or an application program that performs a function of data transmission processing. The method of the embodiment of the present invention includes the following steps.

S601: The first terminal scans the connection identifier. In this embodiment of the present invention, the connection identifier refers to an identifier provided by the terminal that can establish a Bluetooth connection. The first terminal turns on the bluetooth scanning mode to scan connection identifiers such as bluetooth identifiers advertised by other terminals.

In this embodiment of the present invention, the S601 may include: the first terminal scans and acquires a connection identifier at a first scanning frequency within a first time range based on an indication of a first connection policy. The first terminal scans, within a second time range, a connection identifier at a second scanning frequency based on the indication of the first connection policy. In other embodiments, if necessary, more sweep gradients can be configured to sweep at different sweep frequencies at different time periods. Under normal circumstances, when the terminals that need to establish transmission data determine to establish a communication connection, they will quickly turn on the Bluetooth module to facilitate the establishment of the Bluetooth connection. Within the first tens of seconds before the first terminal starts scanning, for example, 10 seconds Within the time range, the Bluetooth logo of the corresponding second terminal will be scanned. Therefore, the Bluetooth logo of the second terminal can be scanned at a higher scanning frequency within the first time range after the scan starts, and the Bluetooth logo of the second terminal can be scanned within other time ranges. The scan frequency can then be reduced to save power. Of course, after finding that the scanned connection identifier list includes the Bluetooth identifier of the second terminal, the user can close the scan and proceed to the next step.

S602: After the scanning ends, the first terminal determines a target connection identifier from each connection identifier obtained by scanning. The target connection identifier includes the connection identifier of the second terminal. After the scanning process of S601 is performed, all the connection identifiers obtained by scanning can be displayed in a list to prompt the user, and the user can select one or more as the target connection identifiers, and the selected target connection identifiers can be respectively used as the second connection identifiers. The connection identifier of the terminal respectively initiates connection processing to each second terminal.

In one embodiment, when multiple connection identifiers are scanned, the connection identifiers of the selected multiple terminals waiting to be connected to the first terminal may be recorded in a preset connection queue; The connection identifier of each terminal is used as the connection identifier of the second terminal, so as to establish a first connection with each terminal in the connection queue respectively. The connection queue is mainly used to record the target connection identifiers selected by the user, so as to facilitate the subsequent establishment of connections with the terminals corresponding to these target connection identifiers, and avoid the need for the user to select the next target connection after the connection with one terminal is established. identified situation.

S603: The first terminal establishes a first connection with the second terminal based on the target connection identifier. After the first terminal obtains the Bluetooth identifier of the second terminal, it can establish a Bluetooth connection (first connection) with the second terminal. During the process of establishing the first connection, there may be an abnormal situation, and reference may be made to the description in the above embodiment for the abnormal handling method. These abnormal conditions may cause the failure to establish the first connection. If the establishment of the first connection fails, the following S603 is performed. If the first connection with a certain target connection identifier in the connection queue is successful, continue to establish a first connection with another second terminal for the next target connection identifier in the connection queue.

S604: If the establishment of the first connection fails, the first terminal performs connection re-establishment processing according to a preset re-establishment policy, so as to complete the first connection with the second terminal. The determining by the first terminal that the establishment of the first connection fails includes: the first terminal fails to scan and determine the connection identifier of the second terminal, that is, the target connection identifier is not determined.

The first terminal performing the connection re-establishment process according to the preset re-establishment policy includes: the first terminal scans the connection identifier again based on the delayed scanning rule to determine the connection identifier of the second terminal, or the first terminal closes the first terminal. connection function, and restart the closed first connection function within a preset time period.

In one embodiment, if there is a third terminal that fails to establish the first connection in the connection queue, the first terminal re-establishes the connection with the third terminal according to the reestablishment policy; in one embodiment, The first terminal re-establishing the connection with the third terminal according to the reestablishment policy includes: after the first terminal closes the first connection function, restarting the first connection function; the first terminal is based on the first connection If the connection identifier of the third terminal is rescanned, the function will establish a connection with the third terminal; if the first terminal fails to rescan the connection identifier of the third terminal, the third terminal will be rescanned. The connection ID of the terminal is recorded in the preset retry queue. After the first terminal has completed the connection of the terminals corresponding to other connection identifiers of other teams, it will scan and reconnect the connection identifiers in the retry queue again until the end condition is satisfied. The reconnection of a connection identifier exceeds the threshold of times (for example, three times), or the user manually stops or closes the scanning of the first connection such as Bluetooth, and so on.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

The data transmission device and the intelligent terminal according to the embodiments of the present invention are described in detail below.

Please refer to FIG. 7 , which is a schematic structural diagram of a data transmission device according to an embodiment of the present invention. The data transmission device in the embodiment of the present invention may be set in a smart terminal, and the device in the embodiment of the present invention may be set in a corresponding in the first terminal. The device includes the following modules.

The display module 701 is used to display the user interface including the transmission identifier when the data sending instruction is detected; the transmission module 702 is used to send the data to be transmitted through the second connection when the selection operation of the transmission identifier is detected to the second terminal; the connection module 703 is configured to establish a first connection between the first terminal and the second terminal based on the first connection strategy, and exchange connection data through the first connection, according to the second connection strategy and The exchanged connection data establishes a second connection between the first terminal and the second terminal.

In one embodiment, the connection module 703 is configured to scan, within a first time range, a connection identifier at a first scanning frequency based on the indication of the first connection strategy; based on the indication of the first connection strategy, in the second Within the time range, scan with the second scanning frequency to obtain the connection identification; after the scanning ends, determine the target connection identification from each of the scanned connection identifications, and establish a first connection with the second terminal based on the target connection identification. connection, and the target connection identifier is the connection identifier of the second terminal.

In one embodiment, the connection module 703 is configured to broadcast the connection identifier of the terminal at the first broadcast frequency within the first time range based on the indication of the first connection policy; based on the indication of the first connection policy, in the Within the second time range, broadcast the connection identifier of the terminal at the second broadcast frequency; after the broadcast ends and the connection request from the second terminal is received, a first connection with the second terminal is established, and the connection is The request is sent by the second terminal based on the scanned connection identifier broadcast by the first terminal.

In one embodiment, the connection module 703 is further configured to perform connection re-establishment processing according to a preset re-establishment strategy if the establishment of the first connection fails, so as to complete the first connection with the second terminal; wherein , determining that the establishment of the first connection fails includes: the connection identifier of the second terminal is not determined by scanning, or the connection request of the second terminal is not received after broadcasting the connection identifier.

In one embodiment, the connection module 703 is configured to scan the connection identifier again based on the delayed scanning rule to determine the connection identifier of the second terminal; The second terminal sends a connection request; or, it is used to close the first connection function, and restart the closed first connection function within a preset time period.

In one embodiment, the connection data exchanged through the first connection includes any one or more of the following data: a connection type of the second connection to be established, the connection type includes a WiFi-based peer-to-peer P2P connection type or WiFi hotspot connection type; client information required for establishing the second connection, the client information includes: connection point identification and authentication password; format information of the data packet; and a trigger instruction for establishing the second connection.

In one embodiment, the connection module 703 is configured to record the connection identifiers of the selected multiple terminals waiting to be connected to the first terminal into a preset connection queue; respectively record the connection identifiers of each terminal in the connection queue The connection identifier of the terminal is used as the connection identifier of the second terminal, so as to establish a first connection with each terminal in the connection queue respectively.

In one embodiment, the connection module 703 is configured to re-establish a connection with the third terminal according to a reestablishment policy if there is a third terminal in the connection queue that fails to establish the first connection;

The connection module 703 is configured to restart the first connection function after closing the first connection function; if the connection identifier of the third terminal is rescanned based on the first connection function, establish a connection with the third terminal. connection; if the connection identifier of the third terminal cannot be rescanned, the connection identifier of the third terminal is recorded in a preset retry queue.

In one embodiment, the connection module 703 is configured to select a connection point identifier interacted by the first connection from the connection point identifiers used for establishing the second connection; The second terminal corresponding to the point identifier exchanges connection information to establish a second connection between the first terminal and the second terminal.

In one embodiment, a first task queue and a second task queue are preset, and the transmission module 702 is configured to store the data to be transmitted stored in the first task queue into the second task queue, The data to be transmitted is stored in the first task queue; the data to be transmitted is obtained from the second task queue, and sent to the second terminal through the second connection; if it is detected that the data to be transmitted through the second connection is detected If the data to be transmitted is not sent successfully, the data to be transmitted stored in the first task queue is stored in the second task queue again, and the data to be transmitted is obtained from the second task queue, and the The second connection is sent to the second terminal.

In one embodiment, the transmission module 702 is configured to, if the data to be transmitted acquired by the second task queue includes the first type of data, transfer the first type of data to a preset synchronous message queue, and use the The second connection sends the data in the synchronous message queue to the second terminal; if the data to be transmitted obtained by the second task queue includes the second type of data, the second data is transferred to the preset asynchronous In the message queue, the data in the asynchronous message queue is sent to the second terminal through the second connection; if the data to be transmitted obtained by the second task queue includes the third type of data, the third type of data is transferred to the pre-processor. The data in the asynchronous file queue is sent to the second terminal through the second connection.

For the specific implementation of each module of the apparatus according to the embodiment of the present invention, reference may be made to the description of the related content in the embodiments corresponding to FIG. 1 to FIG. 6 , which will not be repeated here.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

Please refer to FIG. 8 again, which is a schematic structural diagram of a smart terminal according to an embodiment of the present invention. The smart terminal described in the embodiment of the present invention may be, for example, a smart phone, a tablet computer, a smart wearable device, etc. with a Bluetooth communication function and WiFi communication. functional terminal. The intelligent terminal includes a power module, various casings and other structures, and further includes a processor 801 , a user interface 802 , a memory 803 , a first communication interface 804 and a second communication interface 805 .

The user interface 802 can be a touch screen, buttons, etc., based on the user interface 802 to complete the interaction between the user and the smart terminal, the user interface 802 can be used to program data and information to the user, and can also receive user information such as touch screen selection, voice Enter data etc. In this embodiment of the present invention, the power consumed by the first communication interface 804 when being used is lower than the power consumed by the second communication interface 805 when it is running. The first communication interface 804 may be a low-power communication interface such as Bluetooth, and the second communication interface 805 may be an interface based on a WiFi module.

The memory 803 may include a volatile memory (volatile memory), such as RAM (random-access memory, random access memory); the memory 803 may also include a non-volatile memory (non-volatile memory), such as a flash memory ( flash memory), hard disk or solid-state disk; the memory 803 may also include a combination of the above-mentioned types of memory.

The processor 801 may be a CPU (central processing unit, central processing unit). The processor 801 may further include a hardware chip. It can be an ASIC (application-specific integrated circuit, application-specific integrated circuit), a PLD (programmable logic device, programmable logic device) or a combination thereof. The above-mentioned PLD may be a CPLD (complex programmable logic device, complex programmable logic device), FPGA (field-programmable gate array, field programmable logic gate array) or any combination thereof.

Optionally, the memory 803 is further used to store program instructions. The processor 801 may invoke the program instructions to implement the data transmission method of the embodiment of the present invention.

In this embodiment of the present invention, the processor 801 calls a program stored in the memory 803 to call the first communication interface 804 to establish a first connection with the second terminal, and use the first connection to establish a first connection with the second terminal. exchange connection data, call the second communication interface 805 to establish a second connection between the first terminal and the second terminal according to the second connection strategy and the exchanged connection data; the processor 801 is further configured to detect the data When an instruction is sent, a user interface including a transmission identifier is displayed, and when a selection operation on the transmission identifier is detected, the data to be transmitted is sent to the second terminal through the second connection.

In one embodiment, when the processor 801 is configured to establish the first connection with the second terminal based on the first connection policy, based on the indication of the first connection policy, within the first time range, Scanning at the first scanning frequency to obtain the connection identification; based on the indication of the first connection strategy, within the second time range, scanning at the second scanning frequency to obtain the connection identification; after the scanning is completed, determine from each connection identification obtained by scanning A target connection identifier is established, and a first connection with the second terminal is established based on the target connection identifier, where the target connection identifier is the connection identifier of the second terminal.

In one embodiment, when the processor 801 is configured to establish the first connection with the second terminal based on the first connection policy, based on the indication of the first connection policy, within the first time range, Broadcast the connection identification of the terminal with the first broadcast frequency; broadcast the connection identification of the terminal with the second broadcast frequency within the second time range based on the indication of the first connection policy; After a connection request is made, a first connection with the second terminal is established, and the connection request is sent by the second terminal based on the scanned connection identifier broadcasted by the first terminal.

In one embodiment, the processor 801 is further configured to, if the establishment of the first connection fails, the first terminal to perform connection re-establishment processing according to a preset re-establishment policy, so as to complete the connection between the first terminal and the second terminal. The first connection; wherein, the first terminal determining that the establishment of the first connection fails includes: the first terminal does not scan to determine the connection identifier of the second terminal, or the first terminal does not receive the second terminal after broadcasting the connection identifier. Terminal connection request.

In one embodiment, when the processor 801 is configured to perform connection re-establishment processing according to a preset re-establishment policy, the processor 801 is configured to scan the connection identifier again based on the delayed scanning rule to determine the connection identifier of the second terminal; or The delayed broadcast rule broadcasts the local connection identifier to facilitate the second terminal to send a connection request; or closes the first connection function, and restarts the closed first connection function within a preset time period.

In one embodiment, the connection data exchanged through the first connection includes any one or more of the following data: a connection type of the second connection to be established, the connection type includes a WiFi-based peer-to-peer P2P connection type or WiFi hotspot connection type; client information required for establishing the second connection, the client information includes: connection point identification and authentication password; format information of the data packet; and a trigger instruction for establishing the second connection.

In one embodiment, when the processor 801 is configured to establish the first connection with the second terminal based on the first connection policy, the processor 801 is configured to select a plurality of terminals waiting to be connected to the first terminal The connection identifier is recorded in the preset connection queue; the connection identifier of each terminal in the connection queue is used as the connection identifier of the second terminal, so as to establish the first connection with each terminal in the connection queue. a connection.

In one embodiment, when the processor 801 is configured to establish the first connection with the second terminal based on the first connection policy, if there is a first connection in the connection queue that fails to establish the first connection Three terminals, the first terminal re-establishes the connection with the third terminal according to the reestablishment policy;

The processor 801 is configured to restart the first connection function after the first terminal closes the first connection function; based on the first connection function, if the connection identifier of the third terminal is rescanned, establish a connection with the third terminal. The connection of the third terminal; if the connection identifier of the third terminal cannot be rescanned, the connection identifier of the third terminal is recorded in a preset retry queue.

In one embodiment, when the processor 801 is configured to establish the second connection between the first terminal and the second terminal according to the second connection policy and the interaction data From the connection point identifiers of the two connections, the connection point identifier that is interacted by the first connection is selected; the connection information is exchanged between the first connection and the second terminal corresponding to the connection point identifier to establish the first terminal and the connection point identifier. A second connection between the second terminals.

In one embodiment, a first task queue and a second task queue are preset, and when the processor 801 is configured to send the data to be transmitted to the second terminal through the second connection, the processor 801 is configured to send the data to be transmitted to the second terminal. The data to be transmitted stored in the first task queue is stored in the second task queue, and the data to be transmitted is stored in the first task queue; the data to be transmitted is obtained from the second task queue, and passed The second connection is sent to the second terminal; if it is detected that the data to be transmitted is not successfully sent through the second connection, the data to be transmitted stored in the first task queue is stored in the second terminal again. In the task queue, the data to be transmitted is obtained from the second task queue, and sent to the second terminal through the second connection.

In one embodiment, when the processor 801 is configured to acquire the data to be transmitted from the second task queue and send it to the second terminal through the second connection, the processor 801 is configured to: The data to be transmitted obtained by the queue includes the first type of data, the first terminal dumps the first type of data into a preset synchronous message queue, and sends the data in the synchronous message queue to the second type through the second connection terminal; if the data to be transmitted obtained by the second task queue includes the second type of data, the first terminal transfers the second data to the preset asynchronous message queue, and sends the asynchronous message queue through the second connection The data in the file is sent to the second terminal; if the data to be transmitted obtained by the second task queue includes the third type of data, the first terminal transfers the third type of data to the preset asynchronous file queue, through The second connection sends the data in the asynchronous file queue to the second terminal.

For the specific implementation of each structural module of the smart terminal according to the embodiment of the present invention, reference may be made to the description of the relevant content in the embodiments corresponding to FIG. 1 to FIG. 6 , and details are not described here.

When establishing a communication connection between terminals for transmitting data, the connection can be established through two connection modes that can realize different connection performances, so as to meet the different connection requirements and data transmission requirements of users. A connection method such as Bluetooth with low power consumption is used as the first connection, and data is exchanged through the first connection to establish a connection method such as WiFi that can transmit a large amount of data quickly, which not only saves the energy consumption of the terminal, but also satisfies the user requirements. Fast and large-capacity requirements for data transmission.

Claims (23)

1. a data transmission method, is characterized in that, comprises: When the first terminal detects the data sending instruction, it displays a user interface including the transmission identifier; When the first terminal detects the selection operation on the transmission identifier, it sends the data to be transmitted to the second terminal through the second connection; Wherein, the first terminal establishes a first connection with the second terminal based on a first connection policy, and exchanges connection data through the first connection, according to the second connection policy and the first connection corresponding to the first connection The connection data establishes a second connection between the first terminal and the second terminal, and the connection data exchanged by the first connection includes the underlying connection information carried in the transmission in the first connection channel, and the underlying connection information includes all the connection type of the second connection; The sending of the data to be transmitted includes: instructing transmission to create three socket queues, the three socket queues respectively include a synchronous message queue, an asynchronous message queue and an asynchronous file queue, and the connection of the three socket queues uses the same queue, and does not use the same queue. The time for joining the team is limited to correspond to the transmission time. The synchronous message queue is used to transmit information and files that need to be synchronized, and the data sent first is delivered first, and the data sent later is delivered. The asynchronous message queue is used to ensure asynchronous The message can also be delivered to the second terminal in time, the asynchronous is the asynchronous relative to the previous synchronous queue, the asynchronous message queue maintains a sequential relationship, the asynchronous message queue is bidirectional transmission and supports the status information of both parties in the connection interact with commands. 2. The method of claim 1, wherein the first terminal establishes a first connection with the second terminal based on a first connection policy, comprising: The first terminal scans, within a first time range, a connection identifier at a first scanning frequency based on the indication of the first connection policy; The first terminal scans, within a second time range, a connection identifier at a second scanning frequency based on the indication of the first connection policy; After the scanning ends, the first terminal determines a target connection identifier from each connection identifier obtained by scanning, and establishes a first connection with the second terminal based on the target connection identifier, where the target connection identifier is the target connection identifier. the connection identifier of the second terminal. 3. The method of claim 1, wherein the first terminal establishes a first connection with the second terminal based on a first connection policy, comprising: The first terminal broadcasts the connection identifier of the terminal at the first broadcast frequency within the first time range based on the indication of the first connection policy; The first terminal broadcasts the connection identifier of the terminal at the second broadcast frequency within the second time range based on the indication of the first connection policy; After the broadcast ends and the first terminal receives a connection request from the second terminal, the first terminal establishes a first connection with the second terminal, and the connection request is based on the scanned It is sent by the connection identifier broadcasted by the first terminal. 4. The method of claim 2 or 3, further comprising: If the establishment of the first connection fails, the first terminal performs connection re-establishment processing according to a preset re-establishment policy, so as to complete the first connection with the second terminal; The determining by the first terminal that the establishment of the first connection fails includes: the first terminal fails to scan and determine the connection identifier of the second terminal, or the first terminal does not receive a connection request from the second terminal after broadcasting the connection identifier . 5. The method according to claim 4, wherein the connection re-establishment process performed by the first terminal according to a preset re-establishment strategy comprises any one of the following steps: The first terminal scans the connection identifier again based on the delayed scanning rule to determine the connection identifier of the second terminal; The first terminal broadcasts the local connection identifier based on the delayed broadcast rule, so that the second terminal can send a connection request; The first terminal closes the first connection function, and restarts the closed first connection function within a preset time period. 6. The method of claim 1, wherein the connection data interacted through the first connection comprises any one or more of the following data: The connection type of the second connection to be established, the connection type includes a WiFi-based point-to-point P2P connection type or a WiFi hotspot connection type; client information required for establishing the second connection, the client information includes: connection point identification and authentication password; format information of the data packet; trigger instruction to establish the second connection. 7. The method of claim 1, wherein the first terminal establishes a first connection with the second terminal based on a first connection policy, comprising: Recording the connection identifiers of the selected multiple terminals waiting to be connected to the first terminal into a preset connection queue; The connection identifier of each terminal in the connection queue is respectively used as the connection identifier of the second terminal, so as to establish a first connection with each terminal in the connection queue respectively. 8. The method of claim 7, wherein the first terminal establishes a first connection with the second terminal based on a first connection policy, further comprising: If there is a third terminal in the connection queue that fails to establish the first connection, the first terminal re-establishes the connection with the third terminal according to the reestablishment policy; Wherein, the first terminal re-establishes the connection with the third terminal according to the re-establishment policy, including: After the first terminal closes the first connection function, restarts the first connection function; If the first terminal rescans the connection identifier of the third terminal based on the first connection function, then establishes a connection with the third terminal; If the first terminal fails to rescan the connection identifier of the third terminal, the connection identifier of the third terminal is recorded in a preset retry queue. 9. The method of claim 1, wherein the first terminal establishes a second connection between the first terminal and the second terminal according to a second connection policy and the exchanged connection data, comprising: selecting, by the first terminal, a connection point identifier that is interacted by the first connection from the connection point identifiers used to establish the second connection; The first terminal exchanges connection information with the second terminal corresponding to the connection point identifier through the first connection to establish a second connection between the first terminal and the second terminal. 10. The method of claim 1, wherein a first task queue and a second task queue are preset, and the first terminal sends data to be transmitted to the second terminal through a second connection, comprising: : The first terminal stores the data to be transmitted stored in the first task queue in the second task queue, where the data to be transmitted is stored in the first task queue; The first terminal obtains the data to be transmitted from the second task queue, and sends it to the second terminal through the second connection; If it is detected that the to-be-transmitted data is not successfully sent through the second connection, the first terminal stores the to-be-transmitted data stored in the first task queue into the second task queue again, and stores the data to be transmitted from the first task queue again. The data to be transmitted is obtained from the second task queue and sent to the second terminal through the second connection. 11. The method of claim 10, wherein the first terminal obtains the data to be transmitted from the second task queue, and sends it to the second terminal through a second connection, comprising: If the data to be transmitted acquired by the second task queue includes the first type of data, the first terminal dumps the first type of data into a preset synchronization message queue, and transfers the data in the synchronization message queue through the second connection sent to the second terminal; If the data to be transmitted obtained by the second task queue includes the second type of data, the first terminal dumps the second type of data into the preset asynchronous message queue, and sends the data in the asynchronous message queue through the second connection. sending data to the second terminal; If the data to be transmitted obtained by the second task queue includes the third type of data, the first terminal transfers the third type of data to the preset asynchronous file queue, and sends the data in the asynchronous file queue through the second connection to the second terminal. 12. A data transmission device, comprising: a display module, used for displaying a user interface including a transmission identifier when a data sending instruction is detected; a transmission module, configured to send the data to be transmitted to the second terminal through the second connection when the selection operation on the transmission identifier is detected; The connection module is configured to establish a first connection between the first terminal and the second terminal based on the first connection strategy, and exchange connection data through the first connection, according to the second connection strategy and the first connection corresponding to the first connection. The connection data establishes a second connection between the first terminal and the second terminal, the connection data exchanged by the first connection includes the underlying connection information carried in the transmission in the first connection channel, and the underlying connection information includes the connection type of the second connection; The sending of the data to be transmitted includes: instructing transmission to create three socket queues, the three socket queues respectively include a synchronous message queue, an asynchronous message queue and an asynchronous file queue, and the connection of the three socket queues uses the same queue, and does not use the same queue. The time for joining the team is limited to correspond to the transmission time. The synchronous message queue is used to transmit information and files that need to be synchronized, and the data sent first is delivered first, and the data sent later is delivered. The asynchronous message queue is used to ensure asynchronous The message can also be delivered to the second terminal in time, the asynchronous is the asynchronous relative to the previous synchronous queue, the asynchronous message queue maintains a sequential relationship, the asynchronous message queue is bidirectional transmission and supports the status information of both parties in the connection interact with commands. 13. The apparatus of claim 12, wherein The connection module is configured to scan at a first scanning frequency to obtain a connection identifier within a first time range based on the indication of the first connection strategy; The scanning frequency scans to obtain the connection identifier; after the scanning is completed, the target connection identifier is determined from the respective connection identifiers obtained by scanning, and the first connection with the second terminal is established based on the target connection identifier, and the target connection identifier is is the connection identifier of the second terminal. 14. The apparatus of claim 12, wherein The connection module is configured to broadcast the connection identification of the terminal at the first broadcast frequency within the first time range based on the indication of the first connection policy; based on the indication of the first connection policy, within the second time range, use the The second broadcast frequency broadcasts the connection identifier of the terminal; after the broadcast ends and a connection request from the second terminal is received, a first connection is established with the second terminal, and the connection request is for the second terminal Sent based on the scanned connection identifier broadcasted by the first terminal. 15. The apparatus of claim 13 or 14, further comprising: The connection module is further configured to perform connection re-establishment processing according to a preset re-establishment strategy if the establishment of the first connection fails, so as to facilitate the completion of the first connection with the second terminal; wherein, it is determined that establishment of the first connection fails It includes: the connection identifier of the second terminal is not determined by scanning, or the connection request of the second terminal is not received after broadcasting the connection identifier. 16. The apparatus of claim 15, wherein The connection module is configured to scan the connection identifier again based on the delayed scanning rule to determine the connection identifier of the second terminal; or, be used to broadcast the local connection identifier based on the delayed broadcast rule to facilitate the second terminal to send a connection request; or , which is used to close the first connection function and restart the closed first connection function within a preset time period. 17. The apparatus of claim 12, wherein the connection data interacted through the first connection comprises any one or more of the following data: The connection type of the second connection to be established, the connection type includes a WiFi-based point-to-point P2P connection type or a WiFi hotspot connection type; client information required for establishing the second connection, the client information includes: connection point identification and authentication password; format information of the data packet; trigger instruction to establish the second connection. 18. The apparatus of claim 12, wherein The connection module is configured to record the connection identifiers of the selected multiple terminals waiting to be connected to the first terminal into a preset connection queue; respectively use the connection identifier of each terminal in the connection queue as the second connection identifier. The connection identifier of the terminal, so as to establish the first connection with each terminal in the connection queue respectively. 19. The apparatus of claim 18, wherein The connection module is configured to re-establish a connection with the third terminal according to a reestablishment policy if there is a third terminal that fails to establish the first connection in the connection queue; The connection module is configured to restart the first connection function after closing the first connection function; if the connection identifier of the third terminal is rescanned based on the first connection function, establish a connection with the third terminal connection; if the connection identifier of the third terminal cannot be rescanned, the connection identifier of the third terminal is recorded in a preset retry queue. 20. The apparatus of claim 12, wherein The connection module is configured to select a connection point identifier interacted by the first connection from the connection point identifiers used to establish the second connection; the second connection point corresponding to the connection point identifier through the first connection The terminals exchange connection information to establish a second connection between the first terminal and the second terminal. 21. The device according to claim 12, wherein a first task queue and a second task queue are preset, and the transmission module is configured to store the data to be transmitted stored in the first task queue to a In the second task queue, the data to be transmitted is stored in the first task queue; the data to be transmitted is obtained from the second task queue, and sent to the second terminal through the second connection; if If it is detected that the data to be transmitted is not successfully sent through the second connection, the data to be transmitted stored in the first task queue is stored in the second task queue again, and the data to be transmitted is stored in the second task queue again. The data to be transmitted is obtained from the queue and sent to the second terminal through the second connection. 22. The apparatus of claim 21, wherein The transmission module is configured to, if the data to be transmitted obtained by the second task queue includes the first type of data, transfer the first type of data to the preset synchronization message queue, and send the synchronization message queue through the second connection. If the data to be transmitted obtained by the second task queue includes the second type of data, the second type of data is transferred to the preset asynchronous message queue, and the second type of data is transferred through the second The connection sends the data in the asynchronous message queue to the second terminal; if the data to be transmitted obtained by the second task queue includes the third type of data, the third type of data is transferred to the preset asynchronous file queue, The data in the asynchronous file queue is sent to the second terminal through the second connection. 23. An intelligent terminal, characterized by comprising a processor, a first communication interface, and a second communication interface, wherein: The processor is configured to call the first communication interface to establish a first connection with the second terminal, exchange connection data through the first connection, and call the second communication interface according to the second connection policy and the first connection. The connection data corresponding to the connection establishes a second connection between the intelligent terminal and the second terminal, and the connection data exchanged by the first connection includes the underlying connection information carried in the transmission in the first connection channel. the connection information includes the connection type of the second connection; The processor is further configured to display a user interface including a transmission identifier when detecting a data sending instruction, and when detecting a selection operation on the transmission identifier, send the data to be transmitted to the first through the second connection. two terminals; The sending of the data to be transmitted includes: instructing transmission to create three socket queues, the three socket queues respectively include a synchronous message queue, an asynchronous message queue and an asynchronous file queue, and the connection of the three socket queues uses the same queue, and does not use the same queue. The time for joining the team is limited to correspond to the transmission time. The synchronous message queue is used to transmit information and files that need to be synchronized, and the data sent first is delivered first, and the data sent later is delivered. The asynchronous message queue is used to ensure asynchronous The message can also be delivered to the second terminal in time, the asynchronous is the asynchronous relative to the previous synchronous queue, the asynchronous message queue maintains a sequential relationship, the asynchronous message queue is bidirectional transmission and supports the status information of both parties in the connection interact with commands.

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