CN106412843B - Method, device and system for pairing gateway and terminal - Google Patents
Method, device and system for pairing gateway and terminal Download PDFInfo
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Abstract
The invention discloses a method, equipment and a system for pairing a gateway and a terminal, which are used for solving the problem that the pairing error occurs due to overlapping of a plurality of terminals and gateway pairing frequency bands when the terminal and the gateway are required to be in the same frequency band in the conventional pairing mode. The method comprises the following steps: the method comprises the steps that when a terminal is in an initial pairing state, broadcast packets are received and analyzed at each frequency band in sequence at intervals of a first set time length, the broadcast packets carrying preset pairing codes are determined, and one gateway is selected from gateways corresponding to the broadcast packets carrying the pairing codes to establish pairing connection; the method comprises the steps that when a terminal is in a state of being in a gateway re-pairing state, the terminal determines that historical paired gateway information is stored in the terminal, and sequentially receives and analyzes broadcast packets in each frequency band at intervals of a third set time length, wherein the broadcast packets carry the gateway information for sending the broadcast packets, the frequency band corresponding to the broadcast packets matched with the historical paired gateway information is determined, and the terminal establishes pairing connection with the gateway corresponding to the determined frequency band.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, a device, and a system for pairing a gateway and a terminal.
Background
Wireless Personal Area Network (WPAN) is an emerging short-range Wireless communication Network technology that is proposed to achieve seamless connectivity with a small radius of activity, rich traffic types, and oriented to specific groups.
At present, communication between short-distance wireless systems needs to perform an operation process of pairing (or binding) between a terminal and a gateway, so that data interaction or function control can be performed between the gateway and the terminal which are successfully paired, and normal communication can be performed only between the gateway and a device which are successfully paired.
The commonly used pairing methods are: the method comprises the steps that when a gateway and a terminal enter a pairing mode of the same frequency band, the terminal sends a pairing request to the gateway through modes of re-electrifying or user access and the like, the gateway verifies pairing information carried in the pairing request after receiving the pairing request of the terminal, and a response is returned to the terminal after the verification is passed.
Because the terminal and the gateway are required to be in the same frequency band in the existing pairing mode, if a plurality of gateways or a plurality of terminals exist in a preset range, the problem of pairing error may occur due to overlapping of the plurality of terminals and the gateway pairing frequency band. Therefore, a new gateway and a terminal pairing method are required to be sought, so that the pairing success rate of the terminal and the gateway is improved.
Disclosure of Invention
Embodiments of the present invention provide a method, a device, and a system for pairing a gateway and a terminal, so as to solve a problem that a pairing error may occur due to overlapping between a plurality of terminal and gateway pairing frequency bands when the terminal and the gateway need to be in the same frequency band in an existing pairing manner, so as to improve a pairing success rate.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, a method for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN) is provided, and includes:
if the terminal is determined to be in the state of initial pairing gateways, broadcast packets are sequentially received and analyzed in each frequency band with a first set time length as an interval, broadcast packets carrying preset pairing codes are determined, one gateway is selected from gateways corresponding to the broadcast packets carrying the pairing codes, pairing connection is established with the selected gateway, the broadcast packets carrying the preset pairing codes are sent in the set frequency band by the gateways in the state of searching the terminal with a second set time length as the interval, and the first set time length is longer than the second set time length;
if the terminal is determined to be in a state of being in a gateway re-pairing state, determining that historical pairing information is stored in the terminal, wherein the historical pairing information comprises historical paired gateway information, receiving and analyzing broadcast packets at each frequency band in sequence by taking third set time as an interval, carrying and sending the gateway information of the broadcast packets in the broadcast packets, determining the frequency band corresponding to the broadcast packets matched with the historical paired gateway information, and establishing pairing connection with the determined gateway corresponding to the frequency band, wherein the broadcast packets carrying the gateway information are sent at the set frequency band by the gateway in a normal working state by taking fourth set time as an interval, and the third set time is longer than the fourth set time.
In implementation, the selecting, by the terminal, one gateway from gateways corresponding to broadcast packets carrying the pairing code includes:
and the terminal acquires a signal intensity indicated value of the broadcast packet carrying the pairing code, sequences the broadcast packets according to the sequence of the signal intensity indicated value from large to small, determines the broadcast packet corresponding to the maximum value in the signal intensity indicated value, and selects a gateway corresponding to the broadcast packet corresponding to the maximum value.
In implementation, the gateway information at least carries identification information of the gateway, and the broadcast packet at least carries identification information of the gateway that sends the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the determining, by the terminal, that the terminal is in the state of the initial pairing gateway includes:
the terminal acquires indication information for indicating the state of entering the initial pairing gateway;
the terminal determines that the terminal is in the state of the re-pairing gateway, and the method comprises the following steps:
and the terminal determines to be powered on again or enter an abnormal state, and determines to store historical pairing information.
In implementation, if the terminal is determined to be in the state of the initial paired gateway, the method further includes:
the selected gateway sends a broadcast packet by taking a preset number of time slots as a time interval, wherein the broadcast packet carries the preset pairing code, and the time length corresponding to the preset number of time slots is less than the first set time length;
if the terminal is determined to be in the state of the gateway to be paired again, the method further comprises the following steps:
and the determined gateway corresponding to the frequency band sends a broadcast packet in the first time slot of each time frame, wherein the broadcast packet carries gateway information for sending the broadcast packet, and the time length corresponding to one time frame is less than the third set time length.
In a second aspect, a method for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN) is provided, including:
if the gateway determines that the terminal is in a state of searching the terminal, a broadcast packet is sent in a preset frequency band at intervals of a second set time length, the broadcast packet carries a preset pairing code, the terminal in the state of initially pairing the gateway receives the broadcast packet carrying the preset pairing code in the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway;
if the gateway is determined to be in a normal working state, a broadcast packet is sent in a preset frequency band at intervals of a fourth set time length, the gateway information of the gateway is carried in the broadcast packet, the terminal in a state of being in a gateway re-pairing state receives the broadcast packet carrying the gateway information of the gateway in the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway.
In implementation, the gateway information at least carries identification information of the gateway, and the broadcast packet carries identification information of the gateway that sends the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the determining, by the gateway, that the terminal is in a state of searching for the terminal includes:
after acquiring the indication information of the added terminal, the gateway determines that the gateway is in a state of searching the terminal;
the gateway determines that the gateway is in a normal working state, and the method comprises the following steps:
and after the gateway is electrified again or the initial pairing with the terminal is successful, determining that the gateway is in a normal working state.
In a third aspect, a terminal is provided, including:
the first processing module is used for sequentially receiving and analyzing broadcast packets in each frequency band by taking a first set time length as an interval if the first processing module is determined to be in an initial gateway matching state, determining the broadcast packets carrying preset matching codes, selecting one gateway from the gateways corresponding to the broadcast packets carrying the matching codes, and establishing matching connection with the selected gateway, wherein the broadcast packets carrying the preset matching codes are sent in the set frequency band by the gateways in a search terminal state by taking a second set time length as the interval, and the first set time length is longer than the second set time length;
and the second processing module is used for determining that historical matching information is stored in the second processing module if the second processing module is determined to be in a state of re-matching the gateway, wherein the historical matching information comprises historical matching gateway information, the broadcast packets are sequentially received and analyzed at each frequency band at intervals of a third set time length, the broadcast packets carry and send the gateway information of the broadcast packets, the frequency bands corresponding to the broadcast packets matched with the historical matching gateway information are determined, and the matching connection is established with the determined gateways corresponding to the frequency bands, wherein the broadcast packets carrying the gateway information are sent at the set frequency bands at intervals of a fourth set time length by the gateway in a normal working state, and the third set time length is greater than the fourth set time length.
In implementation, the first processing module is specifically configured to:
and acquiring a signal strength indicated value of the broadcast packet carrying the pairing code, sequencing the broadcast packets according to the sequence of the signal strength indicated value from large to small, determining the broadcast packet corresponding to the maximum value in the signal strength indicated value, and selecting the gateway corresponding to the broadcast packet corresponding to the maximum value.
In implementation, the gateway information at least carries identification information of the gateway, and the broadcast packet at least carries identification information of the gateway that sends the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the first processing module is specifically configured to:
acquiring indication information for indicating the state of entering the initial pairing gateway, and determining the state of entering the initial pairing gateway;
the second processing module is specifically configured to:
and powering on again or entering an abnormal state, and determining that the historical pairing information is stored, and determining that the gateway is in the state of the newly paired gateway.
In an implementation, the first processing module is further configured to:
the selected gateway sends a broadcast packet by taking a preset number of time slots as a time interval, wherein the broadcast packet carries the preset pairing code, and the time length corresponding to the preset number of time slots is less than the first set time length;
the second processing module is further configured to:
and the determined gateway corresponding to the frequency band sends a broadcast packet in the first time slot of each time frame, wherein the broadcast packet carries gateway information for sending the broadcast packet, and the time length corresponding to one time frame is less than the third set time length.
In a fourth aspect, there is provided a gateway comprising:
the first processing module is used for sending a broadcast packet at a preset frequency band at intervals of a second set time length if the terminal is determined to be in a state of searching for the terminal, wherein the broadcast packet carries a preset pairing code, the terminal in the state of initially pairing the gateway receives the broadcast packet carrying the preset pairing code at the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway;
and the second processing module is used for sending a broadcast packet at a preset frequency band by taking fourth set time as an interval if the gateway is determined to be in a normal working state, receiving the broadcast packet carrying the gateway information of the gateway at the preset frequency band by the terminal in the state of re-pairing the gateway, and establishing pairing connection with the gateway after selecting the gateway.
In implementation, the gateway information at least carries identification information of the gateway, and the broadcast packet carries identification information of the gateway that sends the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the first processing module is specifically configured to: after acquiring the indication information of the adding terminal, determining that the adding terminal is in a state of searching the terminal;
the second processing module is specifically configured to: and after the power is re-electrified or the initial pairing with the terminal is successful, determining that the terminal is in a normal working state.
In a fifth aspect, a system for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN) is provided, including:
the gateway is used for sending a broadcast packet at a preset frequency band by taking a second set time length as an interval if the gateway is determined to be in a state of searching the terminal, wherein the broadcast packet carries a preset pairing code; if the gateway is determined to be in a normal working state, sending a broadcast packet at a preset frequency band by taking a fourth set time length as an interval, wherein the broadcast packet carries gateway information of the gateway;
if the terminal is in the initial gateway pairing state, the terminal receives and analyzes the broadcast packets at each frequency band in sequence by taking a first set time length as an interval, determines the broadcast packets carrying preset pairing codes, selects one gateway from the gateways corresponding to the broadcast packets carrying the pairing codes, and establishes pairing connection with the selected gateway; if the situation that the gateway is in a re-pairing state is determined, determining that historical pairing information is stored in the gateway, wherein the historical pairing information comprises historical paired gateway information, sequentially receiving and analyzing a broadcast packet at each frequency band by taking a third set time as an interval, wherein the broadcast packet carries the gateway information for sending the broadcast packet, determining the frequency band corresponding to the broadcast packet matched with the historical paired gateway information, and establishing pairing connection with the gateway corresponding to the determined frequency band;
the first set time length is longer than the second set time length, and the third set time length is longer than the fourth set time length.
Based on the technical scheme, in the embodiment of the invention, in the state of initially pairing gateways, a terminal receives and analyzes broadcast packets in each frequency band in sequence at intervals of a first set time length, determines the broadcast packets carrying preset pairing codes, selects one gateway from the gateways corresponding to the broadcast packets carrying the pairing codes, and establishes pairing connection with the selected gateway, wherein the broadcast packets carrying the preset pairing codes are sent in the set frequency band at intervals of a second set time length by the gateway in the state of searching the terminal, and the first set time length is longer than the second set time length; when the terminal is used for re-pairing the gateways, the terminal determines that historical pairing information is stored in the terminal, the terminal sequentially receives and analyzes broadcast packets in each frequency band by taking a third set time as an interval, the broadcast packets carry gateway information for sending the broadcast packets, the frequency band corresponding to the broadcast packets matched with the historical pairing gateway information is determined, pairing connection is established with the gateway corresponding to the determined frequency band, the broadcast packets carrying the gateway information are sent in the set frequency band by the gateway in a normal working state by taking a fourth set time as an interval, and the third set time is longer than the fourth set time. The problem that in the existing pairing mode, the terminal and the gateway are required to be located under the same frequency band, and pairing errors possibly occur due to overlapping of the pairing frequency bands of the plurality of terminals and the gateway is solved, and the pairing success rate of the terminal and the gateway is improved.
Drawings
Fig. 1 is a diagram illustrating a wireless system state of a gateway and a terminal according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a process of a terminal to re-pair a gateway according to an embodiment of the present invention;
fig. 3 is a schematic process diagram of initial pairing of gateways by a terminal in the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a gateway structure in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the invention, the wireless system states of the gateway and the terminal are shown in fig. 1, when the gateway establishes a network, a working frequency band is selected in the current airspace, a unique personal area network identity identifier PanID is adopted to identify the gateway as a network in the personal area network, and the gateway enters a normal working state after successful establishment. The gateway switches between a normal operating state and a state of the search terminal according to the user operation. Specifically, in an environment where multiple gateways and multiple terminals exist, by changing a transmission time interval of a broadcast packet of a gateway and/or changing different code values carried in the broadcast packet, it is indicated that the current gateway is in a terminal searching state or a normal operating state. The terminal respectively performs gateway pairing by distinguishing the state of the terminal which is the initial pairing gateway or the state of the terminal which is the re-pairing gateway, so that the correct and quick pairing of the gateways can be ensured to join the network.
In the embodiment of the invention, if the gateway is determined to be in a state of searching the terminal, a broadcast packet is sent in a preset frequency band at intervals of a second set time length, the broadcast packet carries a preset pairing code, the terminal in the state of initially pairing the gateway receives the broadcast packet carrying the preset pairing code in the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway. Specifically, after acquiring the indication information of the added terminal, the gateway determines that the terminal is in a state of searching for the terminal. As shown in fig. 2, the process of the terminal initially pairing the gateway is specifically as follows:
step 201: and the terminal receives and analyzes the broadcast packets in each frequency band in sequence by taking the first set time length as an interval, and determines the broadcast packets carrying the preset pairing codes.
The method comprises the steps that a broadcast packet carrying a preset pairing code is sent at a set frequency band by a gateway in a terminal searching state at intervals of a second set time length, wherein the first set time length is longer than the second set time length.
Step 202: and the terminal selects one gateway from the gateways corresponding to the broadcast packet carrying the pairing code and establishes pairing connection with the selected gateway.
In implementation, the terminal selects one gateway from gateways corresponding to the broadcast packet carrying the pairing code, specifically: the terminal acquires a signal intensity indicated value of a broadcast packet carrying the pairing code; sequencing the broadcast packets according to the sequence of the signal strength indicating values from large to small; and determining a broadcast packet corresponding to the maximum value in the signal strength indicating value, and selecting a gateway corresponding to the broadcast packet corresponding to the maximum value.
Wherein, the gateway information at least carries the identification information of the gateway, and the broadcast packet at least carries the identification information of the gateway sending the broadcast packet; the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
Optionally, the gateway information also carries a basic key and a timeslot number in the time frame.
In implementation, the terminal enters the state of the initial paired gateway after acquiring the indication information for indicating the state of entering the initial paired gateway. In specific implementation, there are various ways for the terminal to obtain the indication information for indicating the state of entering the initial pairing gateway, and no limitation is made here. For example, the terminal detects a specific key operation and determines to enter the state of the initial pairing gateway.
In implementation, if the selected gateway sends a broadcast packet at a time interval of a preset number of time slots in an initial gateway pairing state, the broadcast packet carries the preset pairing code, wherein the time length corresponding to the preset number of time slots is less than the first set time length.
In implementation, after acquiring an instruction of clicking an adding terminal on a human-computer interaction interface by a user, the gateway enters a state of searching the terminal, at this time, the gateway sends a broadcast packet at a time interval of every 5 time slots, namely 250ms, and carries a preset pairing code in the broadcast packet, wherein the preset pairing code is a fast pairing code and is expressed as a permit code, and the preset pairing code is used for notifying nearby equipment that the gateway is in the state of searching the terminal.
In specific implementation, the terminal stays for 0.5s in each set frequency band, receives the broadcast packet carrying the permit code, filters out the broadcast packet without the permit code, and sends a network access request to a gateway corresponding to the broadcast packet carrying the permit code, so as to achieve the purpose of rapid pairing. If the terminal receives broadcast packets of a plurality of different gateways, and the plurality of different broadcast packets all carry permit codes, the terminal enters a sequence according to the signal strength indication (RSSI) values of the plurality of broadcast packets carrying the permit codes, and preferentially selects the gateway corresponding to the broadcast packet with the maximum RSSI value, namely the gateway closest to the RSSI value, and matches the selected gateway.
In the embodiment of the invention, if the gateway is determined to be in a normal working state, a broadcast packet is sent in a preset frequency band at intervals of a fourth set time length, the broadcast packet carries gateway information of the gateway, a terminal in a state of recoupling the gateway receives the broadcast packet carrying the gateway information of the gateway in the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway. Specifically, the gateway is determined to be in a normal working state after being powered on again or being paired with the terminal successfully. As shown in fig. 3, the process of the terminal to re-pair the gateway is specifically as follows:
step 301: if the terminal determines that historical matching information is stored in the terminal, the historical matching information comprises historical matching gateway information, broadcast packets are received and analyzed at each frequency band in sequence at intervals of a third set time length, and the broadcast packets carry the gateway information for sending the broadcast packets.
In the embodiment, after the terminal is powered on again or enters an abnormal state, whether the terminal stores historical pairing information or not is judged, and if the terminal stores the historical pairing information, the terminal enters a state of a re-pairing gateway.
The broadcast packet carrying the gateway information is sent at a set frequency band by the gateway in a normal working state by taking a fourth set time length as an interval, wherein the third set time length is longer than the fourth set time length.
Step 302: and the terminal determines a frequency band corresponding to the broadcast packet matched with the history paired gateway information, and establishes pairing connection with the gateway corresponding to the determined frequency band.
Wherein, the gateway information at least carries the identification information of the gateway, and the broadcast packet at least carries the identification information of the gateway sending the broadcast packet; the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
Optionally, the gateway information also carries a basic key and a timeslot number in the time frame.
And the time slot number in the time frame in the gateway information is used for synchronizing the terminal and the gateway data after the terminal and the gateway are successfully paired.
In implementation, if the gateway corresponding to the determined frequency band transmits a broadcast packet in the first time slot of each time frame in a state of reconfiguring the gateways, the broadcast packet carries gateway information for transmitting the broadcast packet, wherein the duration corresponding to one time frame is less than the third set duration;
in a specific implementation, each time frame of the gateway includes 40 time slots, each time slot occupies a duration of 50 milliseconds (ms), and one time frame occupies a duration of 2 seconds(s). The gateway transmits a broadcast packet at intervals of 2s to notify the basic information and status of the gateway of the terminal in the vicinity.
In specific implementation, the terminal stays at each set frequency band for 3s, receives the broadcast packet of the gateway matched with the historical paired gateway information, filters out the broadcast packets of other gateways, and sends a request for re-accessing the network to the gateway matched with the historical paired gateway information, so as to achieve the purpose of correctly pairing the gateways.
The following describes a case of fast pairing between a gateway and a terminal in several application scenarios.
Application scenario one, single gateway and single terminal rapid pairing
A user clicks an 'adding terminal' on a man-machine interaction interface of a gateway; the gateway sends broadcast packets carrying the permit code at intervals of 250 ms. When the terminal is in rapid pairing with the gateway, 0.5s of the terminal stays in each frequency band to receive the broadcast packet, and if 12 legal and free frequency bands exist, the 12 frequency bands (namely 6s) can be used for ensuring that the broadcast packet of the gateway is received. After the terminal and the gateway are successfully paired, the gateway performs data interaction with the terminal after recovering to a normal working state.
Application scenario two, fast pairing of multiple gateways and single terminal
And (3) clicking 'adding terminals' on the human-computer interaction interfaces of the gateways by the users, wherein each gateway sends a broadcast packet carrying a permit code at a time interval of 250 ms. When the terminal is in rapid gateway pairing, 0.5s is kept in each frequency band to receive the broadcast packet, and if 12 legal and free frequency bands exist, the 12 frequency bands (namely 6s) can ensure that the broadcast packet of each gateway is received, and the gateway corresponding to the broadcast packet with the maximum RSSI is preferentially paired, wherein the gateway corresponding to the broadcast packet with the maximum RSSI is the gateway closest to the terminal.
Application scenario three, rapid pairing of single gateway and multiple terminals
Each terminal is paired with the gateway in the same way as the application scenario.
Application scenario four, rapid pairing of multiple gateways and multiple terminals
And each terminal is paired with the gateway closest to the terminal in the same way as the second application scene.
Application scenario five, terminal re-pairing gateway
The gateway sends a broadcast packet every 2s under the normal working state; when the terminal needs to re-pair the gateways, the terminal stays at each frequency band for 3s to receive the broadcast packet, and the broadcast packet is matched with the historical paired gateway information stored by the terminal, so that the paired gateways before the terminal is re-paired are ensured.
Based on the same inventive concept, the embodiment of the present invention further provides a terminal, and the specific implementation of the terminal may refer to the description of the foregoing method, and repeated details are not described again, as shown in fig. 4, the terminal mainly includes:
a first processing module 401, configured to, if it is determined that the mobile terminal is in an initial gateway pairing state, sequentially receive and analyze broadcast packets in each frequency band at intervals of a first set time length, determine a broadcast packet carrying a preset pairing code, select one gateway from gateways corresponding to the broadcast packet carrying the pairing code, and establish a pairing connection with the selected gateway, where the broadcast packet carrying the preset pairing code is sent in the set frequency band at intervals of a second set time length by the gateway in a search terminal state, and the first set time length is longer than the second set time length;
the second processing module 402 is configured to determine that historical matching information is stored in the second processing module if it is determined that the second processing module is in a state of re-matching a gateway, where the historical matching information includes historical matching gateway information, and the third set time is used as an interval to sequentially receive and analyze broadcast packets at each frequency band, the broadcast packets carry and send the gateway information of the broadcast packets, determine a frequency band corresponding to the broadcast packet matched with the historical matching gateway information, and establish a matching connection with the determined gateway corresponding to the frequency band, where the broadcast packet carrying the gateway information is sent at a set frequency band by a gateway in a normal working state at an interval of a fourth set time, and the third set time is longer than the fourth set time.
In implementation, the first processing module is specifically configured to:
and acquiring a signal strength indicated value of the broadcast packet carrying the pairing code, sequencing the broadcast packets according to the sequence of the signal strength indicated value from large to small, determining the broadcast packet corresponding to the maximum value in the signal strength indicated value, and selecting the gateway corresponding to the broadcast packet corresponding to the maximum value.
The gateway information at least carries identification information of the gateway, and the broadcast packet at least carries identification information of the gateway sending the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the first processing module is specifically configured to:
acquiring indication information for indicating the state of entering the initial pairing gateway, and determining the state of entering the initial pairing gateway;
the second processing module is specifically configured to:
and powering on again or entering an abnormal state, and determining that the historical pairing information is stored, and determining that the gateway is in the state of the newly paired gateway.
In an implementation, the first processing module is further configured to:
the selected gateway sends a broadcast packet by taking a preset number of time slots as a time interval, wherein the broadcast packet carries the preset pairing code, and the time length corresponding to the preset number of time slots is less than the first set time length;
the second processing module is further configured to:
and the determined gateway corresponding to the frequency band sends a broadcast packet in the first time slot of each time frame, wherein the broadcast packet carries gateway information for sending the broadcast packet, and the time length corresponding to one time frame is less than the third set time length.
Based on the same inventive concept, the embodiment of the present invention further provides a gateway, and the specific implementation of the gateway may refer to the description of the above method, and repeated details are not described again, as shown in fig. 5, the gateway mainly includes:
a first processing module 501, configured to send a broadcast packet at a preset frequency band at an interval of a second set duration if it is determined that the terminal is in a state of searching for a terminal, where the broadcast packet carries a preset pairing code, receive, by the terminal in a state of initially pairing a gateway, the broadcast packet carrying the preset pairing code at the preset frequency band, and establish pairing connection with the gateway after the gateway is selected;
a second processing module 502, configured to send a broadcast packet at a preset frequency band at an interval of a fourth set time length if it is determined that the terminal is in a normal operating state, where the broadcast packet carries gateway information of the gateway, receive, by the terminal in a state of re-pairing the gateway, the broadcast packet carrying the gateway information of the gateway at the preset frequency band, and establish a pairing connection with the gateway after selecting the gateway.
In implementation, the gateway information at least carries identification information of the gateway, and the broadcast packet carries identification information of the gateway that sends the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
In implementation, the first processing module is specifically configured to: after acquiring the indication information of the adding terminal, determining that the adding terminal is in a state of searching the terminal;
the second processing module is specifically configured to: and after the power is re-electrified or the initial pairing with the terminal is successful, determining that the terminal is in a normal working state.
Based on the same inventive concept, the embodiment of the present invention further provides a system, which mainly comprises:
the gateway is used for sending a broadcast packet at a preset frequency band by taking a second set time length as an interval if the gateway is determined to be in a state of searching the terminal, wherein the broadcast packet carries a preset pairing code; if the gateway is determined to be in a normal working state, sending a broadcast packet at a preset frequency band by taking a fourth set time length as an interval, wherein the broadcast packet carries gateway information of the gateway;
if the terminal is in the initial gateway pairing state, the terminal receives and analyzes the broadcast packets at each frequency band in sequence by taking a first set time length as an interval, determines the broadcast packets carrying preset pairing codes, selects one gateway from the gateways corresponding to the broadcast packets carrying the pairing codes, and establishes pairing connection with the selected gateway; if the situation that the gateway is in a re-pairing state is determined, determining that historical pairing information is stored in the gateway, wherein the historical pairing information comprises historical paired gateway information, sequentially receiving and analyzing a broadcast packet at each frequency band by taking a third set time as an interval, wherein the broadcast packet carries the gateway information for sending the broadcast packet, determining the frequency band corresponding to the broadcast packet matched with the historical paired gateway information, and establishing pairing connection with the gateway corresponding to the determined frequency band;
the first set time length is longer than the second set time length, and the third set time length is longer than the fourth set time length.
Based on the technical scheme, in the embodiment of the invention, in the state of initially pairing gateways, a terminal receives and analyzes broadcast packets in each frequency band in sequence at intervals of a first set time length, determines the broadcast packets carrying preset pairing codes, selects one gateway from the gateways corresponding to the broadcast packets carrying the pairing codes, and establishes pairing connection with the selected gateway, wherein the broadcast packets carrying the preset pairing codes are sent in the set frequency band at intervals of a second set time length by the gateway in the state of searching the terminal, and the first set time length is longer than the second set time length; when the terminal is used for re-pairing the gateways, the terminal determines that historical pairing information is stored in the terminal, the terminal sequentially receives and analyzes broadcast packets in each frequency band by taking a third set time as an interval, the broadcast packets carry gateway information for sending the broadcast packets, the frequency band corresponding to the broadcast packets matched with the historical pairing gateway information is determined, pairing connection is established with the gateway corresponding to the determined frequency band, the broadcast packets carrying the gateway information are sent in the set frequency band by the gateway in a normal working state by taking a fourth set time as an interval, and the third set time is longer than the fourth set time. The problem that in the existing pairing mode, the terminal and the gateway are required to be located under the same frequency band, and pairing errors possibly occur due to overlapping of the pairing frequency bands of the plurality of terminals and the gateway is solved, and the pairing success rate of the terminal and the gateway is improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (17)
1. A method for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN), comprising the following steps:
if the terminal is determined to be in the state of initial pairing gateways, broadcast packets are sequentially received and analyzed in each frequency band with a first set time length as an interval, broadcast packets carrying preset pairing codes are determined, one gateway is selected from gateways corresponding to the broadcast packets carrying the pairing codes, pairing connection is established with the selected gateway, the broadcast packets carrying the preset pairing codes are sent in the set frequency band by the gateways in the state of searching the terminal with a second set time length as the interval, and the first set time length is longer than the second set time length;
if the terminal is determined to be in a state of re-pairing the gateways, determining that historical pairing information is stored in the terminal, wherein the historical pairing information comprises historical paired gateway information, sequentially receiving and analyzing broadcast packets in each frequency band at intervals of a third set time length, the broadcast packets carry the gateway information for sending the broadcast packets, determining the frequency band corresponding to the broadcast packets matched with the historical paired gateway information, and establishing pairing connection with the determined gateway corresponding to the frequency band, wherein the broadcast packets carrying the gateway information are sent in the set frequency band at intervals of a fourth set time length by the gateway in a normal working state, and the third set time length is longer than the fourth set time length;
when the gateway establishes the network, a working frequency band is selected in the current airspace.
2. The method of claim 1, wherein the terminal selects one gateway from gateways corresponding to broadcast packets carrying the pairing code, and the method comprises:
and the terminal acquires a signal intensity indicated value of the broadcast packet carrying the pairing code, sequences the broadcast packets according to the sequence of the signal intensity indicated value from large to small, determines the broadcast packet corresponding to the maximum value in the signal intensity indicated value, and selects a gateway corresponding to the broadcast packet corresponding to the maximum value.
3. The method of claim 1, wherein the gateway information at least carries identification information of the gateway, and the broadcast packet at least carries identification information of a gateway that transmits the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
4. The method of claim 1, wherein the terminal determining that it is in an initial paired gateway state comprises:
the terminal acquires indication information for indicating the state of entering the initial pairing gateway;
the terminal determines that the terminal is in the state of the re-pairing gateway, and the method comprises the following steps:
and the terminal determines to be powered on again or enter an abnormal state, and determines to store historical pairing information.
5. The method of claim 4,
if the terminal is determined to be in the state of the initial pairing gateway, the method further comprises the following steps:
the selected gateway sends a broadcast packet by taking a preset number of time slots as a time interval, wherein the broadcast packet carries the preset pairing code, and the time length corresponding to the preset number of time slots is less than the first set time length;
if the terminal is determined to be in the state of the gateway to be paired again, the method further comprises the following steps:
and the determined gateway corresponding to the frequency band sends a broadcast packet in the first time slot of each time frame, wherein the broadcast packet carries gateway information for sending the broadcast packet, and the time length corresponding to one time frame is less than the third set time length.
6. A method for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN), comprising the following steps:
if the gateway determines that the terminal is in a state of searching the terminal, a broadcast packet is sent in a preset frequency band at intervals of a second set time length, the broadcast packet carries a preset pairing code, the terminal in the state of initially pairing the gateway receives the broadcast packet carrying the preset pairing code in the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway; the method comprises the steps that when a gateway establishes a network, a working frequency band is selected in a current airspace, and if a terminal is determined to be in an initial gateway matching state, broadcast packets are received in each frequency band in sequence by taking a first set time length as an interval;
if the gateway is determined to be in a normal working state, sending a broadcast packet at a preset frequency band at intervals of a fourth set time length, wherein the broadcast packet carries gateway information of the gateway, receiving the broadcast packet carrying the gateway information of the gateway at the preset frequency band by a terminal in a state of recoupling the gateway, and establishing pairing connection with the gateway after selecting the gateway; and if the terminal is determined to be in the state of the re-pairing gateway, the terminal receives the broadcast packets in each frequency band in sequence by taking the third set time length as an interval.
7. The method of claim 6, wherein the gateway information at least carries identification information of the gateway, and the broadcast packet carries identification information of a gateway that transmits the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
8. The method of claim 6, wherein the gateway determining that it is in a state of searching for a terminal comprises:
after acquiring the indication information of the added terminal, the gateway determines that the gateway is in a state of searching the terminal;
the gateway determines that the gateway is in a normal working state, and the method comprises the following steps:
and after the gateway is electrified again or the initial pairing with the terminal is successful, determining that the gateway is in a normal working state.
9. A terminal, comprising:
the first processing module is used for sequentially receiving and analyzing broadcast packets in each frequency band by taking a first set time length as an interval if the first processing module is determined to be in an initial gateway matching state, determining the broadcast packets carrying preset matching codes, selecting one gateway from the gateways corresponding to the broadcast packets carrying the matching codes, and establishing matching connection with the selected gateway, wherein the broadcast packets carrying the preset matching codes are sent in the set frequency band by the gateways in a search terminal state by taking a second set time length as the interval, and the first set time length is longer than the second set time length;
the second processing module is used for determining that historical matching information is stored in the second processing module if the second processing module is determined to be in a state of being in a gateway re-matching state, wherein the historical matching information comprises historical matching gateway information, broadcast packets are sequentially received and analyzed in each frequency band at intervals of a third set time length, the broadcast packets carry the gateway information for sending the broadcast packets, the frequency bands corresponding to the broadcast packets matched with the historical matching gateway information are determined, matching connection is established with the determined gateways corresponding to the frequency bands, the broadcast packets carrying the gateway information are sent in the set frequency bands by the gateways in a normal working state at intervals of a fourth set time length, and the third set time length is longer than the fourth set time length;
when the gateway establishes the network, a working frequency band is selected in the current airspace.
10. The terminal of claim 9, wherein the first processing module is specifically configured to:
and acquiring a signal strength indicated value of the broadcast packet carrying the pairing code, sequencing the broadcast packets according to the sequence of the signal strength indicated value from large to small, determining the broadcast packet corresponding to the maximum value in the signal strength indicated value, and selecting the gateway corresponding to the broadcast packet corresponding to the maximum value.
11. The terminal according to claim 9, wherein the gateway information at least carries identification information of the gateway, and the broadcast packet at least carries identification information of a gateway that transmits the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
12. The terminal of claim 9, wherein the first processing module is specifically configured to:
acquiring indication information for indicating the state of entering the initial pairing gateway, and determining the state of entering the initial pairing gateway;
the second processing module is specifically configured to:
and powering on again or entering an abnormal state, and determining that the historical pairing information is stored, and determining that the gateway is in the state of the newly paired gateway.
13. The terminal of claim 12, wherein the first processing module is further configured to:
the selected gateway sends a broadcast packet by taking a preset number of time slots as a time interval, wherein the broadcast packet carries the preset pairing code, and the time length corresponding to the preset number of time slots is less than the first set time length;
the second processing module is further configured to:
and the determined gateway corresponding to the frequency band sends a broadcast packet in the first time slot of each time frame, wherein the broadcast packet carries gateway information for sending the broadcast packet, and the time length corresponding to one time frame is less than the third set time length.
14. A gateway, comprising:
the first processing module is used for sending a broadcast packet at a preset frequency band at intervals of a second set time length if the terminal is determined to be in a state of searching for the terminal, wherein the broadcast packet carries a preset pairing code, the terminal in the state of initially pairing the gateway receives the broadcast packet carrying the preset pairing code at the preset frequency band, and after the gateway is selected, pairing connection is established with the gateway; the method comprises the steps that when a gateway establishes a network, a working frequency band is selected in a current airspace, and if a terminal is determined to be in an initial gateway matching state, broadcasting is received in each frequency band in sequence by taking a first set time length as an interval;
the second processing module is used for sending a broadcast packet at a preset frequency band at an interval of a fourth set time length if the terminal is determined to be in a normal working state, wherein the broadcast packet carries gateway information of the gateway, receiving the broadcast packet carrying the gateway information of the gateway at the preset frequency band by the terminal in a state of re-pairing the gateway, and establishing pairing connection with the gateway after the gateway is selected; and if the terminal is determined to be in the state of the re-pairing gateway, the terminal receives the broadcast packets in each frequency band in sequence by taking the third set time length as an interval.
15. The gateway according to claim 14, wherein the gateway information at least carries identification information of the gateway, and the broadcast packet carries identification information of the gateway that transmitted the broadcast packet;
the identification information of the gateway comprises a personal area network identity identification (PanID) of the gateway, a Media Access Control (MAC) address of the gateway and indication information of a frequency band.
16. The gateway of claim 14, wherein the first processing module is specifically configured to: after acquiring the indication information of the adding terminal, determining that the adding terminal is in a state of searching the terminal;
the second processing module is specifically configured to: and after the power is re-electrified or the initial pairing with the terminal is successful, determining that the terminal is in a normal working state.
17. A system for pairing a gateway and a terminal in a Wireless Personal Area Network (WPAN), comprising:
the gateway is used for sending a broadcast packet at a preset frequency band by taking a second set time length as an interval if the gateway is determined to be in a state of searching the terminal, wherein the broadcast packet carries a preset pairing code; if the gateway is determined to be in a normal working state, sending a broadcast packet at a preset frequency band by taking a fourth set time length as an interval, wherein the broadcast packet carries gateway information of the gateway;
if the terminal is in the initial gateway pairing state, the terminal receives and analyzes the broadcast packets at each frequency band in sequence by taking a first set time length as an interval, determines the broadcast packets carrying preset pairing codes, selects one gateway from the gateways corresponding to the broadcast packets carrying the pairing codes, and establishes pairing connection with the selected gateway; if the situation that the gateway is in a re-pairing state is determined, determining that historical pairing information is stored in the gateway, wherein the historical pairing information comprises historical paired gateway information, sequentially receiving and analyzing a broadcast packet at each frequency band by taking a third set time as an interval, wherein the broadcast packet carries the gateway information for sending the broadcast packet, determining the frequency band corresponding to the broadcast packet matched with the historical paired gateway information, and establishing pairing connection with the gateway corresponding to the determined frequency band;
the first set time length is longer than the second set time length, and the third set time length is longer than the fourth set time length;
when the gateway establishes the network, a working frequency band is selected in the current airspace.
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| CN107257516A (en) * | 2017-07-17 | 2017-10-17 | 湖南海翼电子商务股份有限公司 | Wireless headset and its matching method |
| CN108901016B (en) * | 2018-09-14 | 2022-04-26 | 锐捷网络股份有限公司 | Bridging pairing method, terminal, system, terminal device and medium |
| CN111314185B (en) * | 2018-12-12 | 2022-05-13 | 深圳市云海物联科技有限公司 | Ad hoc network method, ad hoc network response method, controlled equipment and gateway |
| CN112188618B (en) * | 2019-07-01 | 2024-05-14 | 深圳长城开发科技股份有限公司 | Networking method, terminal, gateway and storage medium for dynamically adjusting networking resources |
| CN110446178A (en) * | 2019-09-09 | 2019-11-12 | 安徽德通智联科技有限公司 | A method of exempt to configure wireless telecommunications |
| CN111031496A (en) * | 2020-01-08 | 2020-04-17 | 惠州高盛达科技有限公司 | Switching device and lamp device pairing method and system based on SIG MESH network |
| CN112532382B (en) * | 2020-11-17 | 2021-08-13 | 广州技象科技有限公司 | Internet of things gateway selection method and device based on signal transmission safety management |
| CN113630825A (en) * | 2021-08-04 | 2021-11-09 | 杰克缝纫机股份有限公司 | Ad hoc networking method for industrial equipment, industrial equipment, gateway and medium |
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