CN105592279B - A kind of backstage projecting method and device - Google Patents
A kind of backstage projecting method and device Download PDFInfo
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- CN105592279B CN105592279B CN201410564474.9A CN201410564474A CN105592279B CN 105592279 B CN105592279 B CN 105592279B CN 201410564474 A CN201410564474 A CN 201410564474A CN 105592279 B CN105592279 B CN 105592279B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
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Abstract
The invention discloses a kind of backstage projecting method and devices.Wherein, this method comprises: the data sharing for establishing projection device and source device connects；It determines after opening backstage projecting function, obtains the data from the source device；The data for the source device that will acquire, the Projection Display on the projection device.Through the invention, data on present physical screen can only be projected by solving projection products in the related technology, the not high problem of user experience, the data after connecting Screen sharing may be implemented to project on backstage, release the physical screen of projection device, user can be allowed to do other operations while projection, improve user experience.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a background projection method and apparatus.
Background
An intelligent miniature projection product (such as an intelligent miniature projector) is a projector which is additionally provided with a wireless wifi internet function and carries an intelligent operating system, and an Android system is a relatively wide intelligent operating system currently applied to a series of products. The multi-screen interaction is supported, and the system can be interconnected and shared with android mobile phones, android PADs, iPhones, iPads and the like; support one-touch hot spots AP and WIFI DIRECT; multiple USB interfaces, supporting USB keyboard and mouse; has the characteristics of small volume, easy operation, multifunction, multiple support, portability and the like. At present, the technology of intelligent projection is also continuously improved, and the functions are also continuously improved.
Screen sharing techniques occur behind a Graphical User Interface (GUI). The purpose of screen sharing is to render the interface display content of the host screen on the remote client. Or it comes in the concept of a virtual terminal that gives the far-end user the feel of sitting beside the host. The common screen sharing technologies at present include Wifi Display, apple series Air Play, and the like.
When the projection is opened by the existing intelligent miniature projection product, most of the data on the current physical screen is projected in real time, and after the mobile phone is connected with the miniature projection product through screen sharing, more users want to project the shared mobile phone screen, and the physical screen on the projection product can do other things at the same time.
Aiming at the problems that projection products in the related art can only project data on the current physical screen and user experience is not high, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a background projection method and a background projection device, which are used for solving the technical problems that projection products can only project data on a current physical screen and user experience is not high in the related art.
According to an aspect of the present invention, the present invention provides a background projection method, wherein the method includes: establishing data sharing connection between the projection equipment and the source equipment; after the background projection function is determined to be started, acquiring data from the source equipment; and projecting and displaying the acquired data of the source equipment on the projection equipment.
Preferably, the method further comprises: after the background projection function is determined to be closed, receiving data sent by the projection system; and projecting the received data of the projection system on the projection device for display.
Preferably, after the background projection mode is determined to be turned on, the method further includes: and stopping receiving the data transmitted by the projection system.
Preferably, the turning on or off of the background projection function is determined by: monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or, the background projection function is started or closed through the API interface; alternatively, polling global variable values; and setting the global variable value to represent the starting or closing of the background projection function.
Preferably, after determining to turn on or off the background projection function, the method further includes: projecting and displaying a specified image on the projection device; wherein the specified image is used to prompt the user that the projected content is being switched.
According to another aspect of the present invention, the present invention further provides a rear projection apparatus, wherein the apparatus includes: the connection establishing module is used for establishing data sharing connection between the projection equipment and the source equipment; the data acquisition module is used for acquiring data from the source equipment after the background projection function is determined to be started; and the background data projection module is used for projecting and displaying the acquired data of the source equipment on the projection equipment.
Preferably, the apparatus further comprises: the system data receiving module is used for receiving data sent by the projection system after the background projection function is determined to be closed; and the system data projection module is used for projecting and displaying the received data of the projection system on the projection equipment.
Preferably, the data acquisition module is further configured to stop receiving data sent by the projection system after determining that the background projection mode is started.
Preferably, the apparatus further comprises: the function control module is used for determining the opening or closing of the background projection function in the following modes: monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or, the background projection function is started or closed through the API interface; alternatively, polling global variable values; and setting the global variable value to represent the starting or closing of the background projection function.
Preferably, the apparatus further comprises: the prompt information display module is used for projecting and displaying a specified image on the projection equipment after the background projection function is determined to be started or closed; wherein the specified image is used to prompt the user that the projected content is being switched.
The invention has the following beneficial effects:
the method solves the problems that projection products can only project data on the current physical screen and user experience is not high in the related technology, can realize the projection of the data after the screen sharing connection in the background, releases the physical screen of the projection equipment, enables users to do other operations while projecting, and improves the user experience.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a flow diagram of a background projection method according to an embodiment of the invention;
FIG. 2 is a block diagram of a rear projection apparatus according to an embodiment of the present invention;
FIG. 3 is a block diagram of a system architecture according to an embodiment of the present invention;
FIG. 4 is a flow diagram of a system turning on a background projection function according to an embodiment of the invention;
fig. 5 is a flow chart of the system shutting down the background projection function according to an embodiment of the present invention.
Detailed Description
In order to solve the problem that a projection product in the prior art can only project data on a current physical screen and user experience is not high, the invention provides a background projection method and a background projection device, and the invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
The present embodiment provides a background projection method, which may be implemented on a projection device side (e.g., an intelligent micro-projection product), and fig. 1 is a flowchart of the background projection method according to the embodiment of the present invention, as shown in fig. 1, the method includes the following steps (step S102-step S106):
and step S102, establishing data sharing connection between the projection equipment and the source equipment.
And step S104, acquiring data from the source equipment after the background projection function is determined to be started. In order to ensure accurate reception of data of the source device and avoid resource waste, it is preferable that the reception of data sent by the projection system is stopped after the background projection mode is determined to be started. The data sent by the projection system is data on a physical screen of the projection device.
And step S106, projecting and displaying the acquired data of the source equipment on the projection equipment.
By the method, the problems that projection products can only project data on the current physical screen and user experience is not high in the related technology are solved, the data after screen sharing connection can be projected on the background, the physical screen of the projection equipment is released, a user can perform other operations while projecting, and user experience is improved.
And after the background projection function is determined to be closed, stopping receiving the data from the source equipment, starting receiving the data sent by the projection system, and projecting and displaying the received data of the projection system on the projection equipment. Namely, the data on the current physical screen is projected, thereby realizing the accurate switching of two projection modes. The user can select to project the data after the screen sharing connection in the background, and can also select to project the content on the physical screen of the projection device.
In order to ensure the accuracy and the ease of operation of turning on or off the background projection function, the present embodiment provides the following preferred embodiments, that is, turning on or off the background projection function is determined by:
(1) monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or, (2) the background projection function is started or closed through the API interface; or, (3) polling global variable values; and setting the global variable value to indicate to turn on or turn off the background projection function.
Specifically, a broadcast message is sent, and the system simultaneously monitors the broadcast message; when the background projection function is monitored, the background projection function is started; the operation of closing is similar; alternatively, the system provides an API interface,
for application, the application can start and stop the background projection function through the API call; setting a system global variable, and inquiring the value of the global variable in system polling; alternatively, when the value is set to true or 1 or enable or the like, which indicates the value of start-up, the background projection function is turned on.
Of course, the control of the opening or closing of the background projection function is not limited to the above modes, and any mode may be adopted as long as the opening or closing of the background projection function can be accurately controlled.
For better user experience, abrupt transition of projection content in the data switching process is avoided, and after the real screen data is stopped being transmitted, a frame of fixed image can be transmitted, for example, information prompting the user that the projection content is being switched to background projection is provided, so that the user can perceive that the projection content is being switched at present. Based on this, this embodiment provides a preferred implementation manner, that is, after determining to turn on or off the background projection function, the method of this embodiment further includes: projecting and displaying a specified image on a projection device; wherein the specified image is used to prompt the user that the projected content is being switched.
According to the method introduced in the embodiment, after the user is connected with the intelligent miniature projection product through the mobile phone or the pad terminal through the screen sharing, the user can only project the mobile phone data from the screen sharing hand, at this time, the physical screen of the miniature projection product is idle, and the user can do other operations, such as surfing the internet, and the like, without affecting the projection.
Example two
Corresponding to the background projection method described in the foregoing embodiment, this embodiment provides a background projection apparatus, which may be disposed on a projection device side to implement the foregoing embodiment. Fig. 2 is a block diagram of a background projection apparatus according to an embodiment of the present invention, and as shown in fig. 2, the apparatus includes: a connection establishing module 10, a data acquiring module 20 and a background data projecting module 30. This structure will be described in detail below.
A connection establishing module 10, configured to establish a data sharing connection between the projection device and the source device;
a data obtaining module 20, connected to the connection establishing module 10, for obtaining data from the source device after determining to start the background projection function;
and a background data projection module 30, connected to the data acquisition module 20, configured to project and display the acquired data of the source device on the projection device.
By the device, the problems that projection products can only project data on the current physical screen and user experience is not high in the related technology are solved, the data after the screen sharing connection can be projected on the background, the physical screen of the projection equipment is released, users can perform other operations while projecting, and user experience is improved.
The above-mentioned device still includes: the system data receiving module is used for receiving the data sent by the projection system after the background projection function is determined to be closed; and the system data projection module is used for projecting and displaying the received data of the projection system on the projection equipment.
The accurate switching of the two projection modes is realized, so that a user can select to project the data after the screen sharing connection on the background, and can also select to project the content on the physical screen of the projection equipment. Preferably, the data obtaining module 20 is further configured to stop receiving data sent by the projection system after determining to start the background projection mode.
In order to ensure the accuracy and the easy operability of the turning on or off of the background projection function, the present embodiment provides the following preferred embodiments, that is, the apparatus further comprises: the function control module is used for determining the opening or closing of the background projection function in the following modes: monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or, the background projection function is started or closed through the API interface; alternatively, polling global variable values; and setting the global variable value to indicate to turn on or turn off the background projection function.
For better user experience and avoiding abrupt transition of projection content during data switching, preferably, the apparatus further comprises: the prompt information display module is used for projecting and displaying a specified image on the projection equipment after the background projection function is determined to be started or closed; the specified image is used for prompting the user that the projection content is switched.
EXAMPLE III
Fig. 3 is a block diagram of a system according to an embodiment of the present invention, as shown in fig. 3, the system including: the screen sharing Source device, the intelligent micro projection device and the projection module.
The screen sharing Source device is mostly a mobile phone terminal. The screen sharing Sink application is a software module on the intelligent miniature projection equipment and is used for completing screen sharing receiving work. The projection module is a module which is responsible for projection on the intelligent miniature projection equipment.
Example four
The following describes the operation flow of the system according to the above embodiment. Fig. 4 is a flowchart of the system for starting the background projection function according to the embodiment of the present invention, and as shown in fig. 4, the flowchart includes the following steps (step S402-step S408):
step S402, the intelligent miniature projection equipment starts a screen sharing receiving end, and the screen sharing Source equipment establishes connection with the screen sharing receiving end.
Step S404, the user selects to start the background projection function in the Sink application, the Sink application firstly checks whether the projection module is started, and if not, the projection module is started. And when the projection module is started, the Sink application informs that the system is in a background projection mode at present.
Step S406, when the system knows that the background projection is turned on, the HDMI input of the projection module is stopped.
Step S408, the Sink application inputs data to the HDMI of the projection module to start sending, and the picture projected by the projection module is the data sent by the Sink application, which is the screen data of the Source end received through the screen sharing.
The Sink application switches to the background and the user can do other operations on the projection device at this time.
Fig. 5 is a flowchart of the system turning off the background projection function according to the embodiment of the present invention, and as shown in fig. 5, the flowchart includes the following steps (step S502-step S508):
in step S502, the current state is a state in which the background projection function is turned on.
In step S504, the user selects to turn off the background projection.
In step S506, the Sink application suspends HDMI input and transmission of data to the projection module, and notifies the system that the background projection is finished.
Step S508, when the system knows that the background projection is finished, it starts to send data to the HDMI input of the projection module.
Through the implementation, after the projection equipment is connected through screen sharing, the far-end mobile phone screen can be projected under the condition that the use of the projection equipment is not influenced, and the user experience is very good.
Through the introduction of the above embodiments, the technical scheme adopted by the invention comprises the following specific steps:
step one, starting a Sink application on the projection equipment, and starting a projection function.
And step two, the Sink application on the projection equipment is linked on the Source equipment, and the data sharing is started.
And step three, the Sink application plays the data sent by the Source equipment.
And step four, the user selects to start the background projection operation in the Sink application, and the operation mode can be through a software menu or a physical key.
The Sink application can set a background projection function to be started by default, and when a user presses a home key to directly switch to a standby interface under the condition, or switches to other applications through other operation modes, the Sink application automatically switches to background projection.
The user may also turn off the default on background projection function in the Sink application or system settings.
And step five, after the Sink application starts a background projection mode, switching to a background, and informing the system of starting a background projection function.
Informing the system to start the projection function can be realized in the following ways:
sending a broadcast message, monitoring the broadcast message by the system, and after monitoring, indicating that a background projection function is started, wherein the closing operation is similar; or,
the system provides an API interface for the application, and the application can start and stop the background projection function through the API call; or,
setting a system global variable, polling the value of the global variable by the system, and starting the background projection function when the value is set to true or 1 or enable and the like which represents the starting value.
And step six, the system stops sending the screen data to the projection module, and the system stops calling the HDMI input data sending interface of the projection module so as to achieve the purpose of stopping sending the screen data.
In addition, for better user experience, abrupt conversion of projection content in the data switching process is avoided, and after the real screen data is stopped being sent, a frame of fixed image can be sent, for example, information prompting the user that the projection content is being switched to background projection is provided, so that the user can perceive that the projection content is being switched at present.
And seventhly, the Sink application simultaneously receives and decodes the data shared by the Source, and sends the decoded video data to the HDMI input of the projection module.
And step eight, the projection module projects the data input by the HDMI.
And step nine, the user enters the Sink application again through the menu and closes the background projection function.
Step ten, the Sink application stops sending data to the HDMI input of the projection module.
Step eleven, the Sink application informs the system of closing the background projection.
Step twelve, the system sends the screen data to the HDMI input of the projection module.
Step thirteen, the projection module projects the data input by the HDMI.
The invention provides a method and a device for background projection of data shared by a screen on an intelligent miniature projection product. The problem of projection product can only project data on the current physical screen among the correlation technique, user experience is not high is solved, can realize sharing the data after the connection with the screen rear projection, released projection equipment's physical screen, can let the user do other operations when the projection, improved user experience.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.
Claims (8)
1. A method of background projection, the method comprising:
establishing data sharing connection between the projection equipment and the source equipment;
after the background projection function is determined to be started, data from the source equipment are obtained, and the data sent by the projection system are stopped being received;
and projecting and displaying the acquired data of the source equipment on the projection equipment, and releasing a physical screen of the projection equipment.
2. The method of claim 1, wherein the method further comprises:
after the background projection function is determined to be closed, receiving data sent by the projection system;
and projecting the received data of the projection system on the projection device for display.
3. The method of claim 2, wherein the turning on or off of the background projection function is determined by:
monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or,
executing the function of starting or closing the background projection through an application programming API (application programming interface); or,
polling a global variable value; and setting the global variable value to represent the starting or closing of the background projection function.
4. The method of claim 2, wherein after determining to turn on or off a background projection function, the method further comprises:
projecting and displaying a specified image on the projection device; wherein the specified image is used to prompt the user that the projected content is being switched.
5. A rear projection apparatus, comprising:
the connection establishing module is used for establishing data sharing connection between the projection equipment and the source equipment;
the data acquisition module is used for acquiring data from the source equipment and stopping receiving the data sent by the projection system after the background projection function is determined to be started;
and the background data projection module is used for projecting and displaying the acquired data of the source equipment on the projection equipment and releasing a physical screen of the projection equipment.
6. The apparatus of claim 5, wherein the apparatus further comprises:
the system data receiving module is used for receiving data sent by the projection system after the background projection function is determined to be closed;
and the system data projection module is used for projecting and displaying the received data of the projection system on the projection equipment.
7. The apparatus of claim 6, wherein the apparatus further comprises: the function control module is used for determining the opening or closing of the background projection function in the following modes: monitoring a broadcast message; the broadcast message is used for broadcasting and starting or closing a background projection function; or, the background projection function is started or closed through an application programming API (application programming interface); alternatively, polling global variable values; and setting the global variable value to represent the starting or closing of the background projection function.
8. The apparatus of claim 6, wherein the apparatus further comprises:
the prompt information display module is used for projecting and displaying a specified image on the projection equipment after the background projection function is determined to be started or closed; wherein the specified image is used to prompt the user that the projected content is being switched.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564474.9A CN105592279B (en) | 2014-10-22 | 2014-10-22 | A kind of backstage projecting method and device |
| PCT/CN2014/095694 WO2015184784A1 (en) | 2014-10-22 | 2014-12-30 | Background projection method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564474.9A CN105592279B (en) | 2014-10-22 | 2014-10-22 | A kind of backstage projecting method and device |
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| CN105592279A CN105592279A (en) | 2016-05-18 |
| CN105592279B true CN105592279B (en) | 2019-04-05 |
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| CN201410564474.9A Active CN105592279B (en) | 2014-10-22 | 2014-10-22 | A kind of backstage projecting method and device |
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| WO (1) | WO2015184784A1 (en) |
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| CN108540667B (en) * | 2018-04-12 | 2021-04-06 | 北京三快在线科技有限公司 | Message reminding control method, device, medium and electronic equipment |
| CN109889885A (en) * | 2019-02-27 | 2019-06-14 | 努比亚技术有限公司 | A kind of throwing screen control method, terminal and computer readable storage medium |
| CN110995923B (en) * | 2019-11-22 | 2021-08-20 | 维沃移动通信（杭州）有限公司 | Screen projection control method and electronic equipment |
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| CN101150706A (en) * | 2007-10-24 | 2008-03-26 | 深圳华为通信技术有限公司 | Video conference device |
| CN101729659A (en) * | 2008-10-20 | 2010-06-09 | Lg电子株式会社 | A mobile terminal and a method for controlling the related function of an external device |
| CN203327085U (en) * | 2013-07-12 | 2013-12-04 | 沈阳华立德电子科技有限公司 | Controllable remote projection mobile phone |
| CN103888699A (en) * | 2012-12-20 | 2014-06-25 | 中强光电股份有限公司 | Projection device with video function and method for video conference by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI410741B (en) * | 2009-12-03 | 2013-10-01 | Pegatron Corp | System, device and method for message displaying |
| US8570357B2 (en) * | 2011-04-29 | 2013-10-29 | Hewlett-Packard Development Company, L.P. | Systems and methods for reducing video crosstalk |
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- 2014-10-22 CN CN201410564474.9A patent/CN105592279B/en active Active
- 2014-12-30 WO PCT/CN2014/095694 patent/WO2015184784A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150706A (en) * | 2007-10-24 | 2008-03-26 | 深圳华为通信技术有限公司 | Video conference device |
| CN101729659A (en) * | 2008-10-20 | 2010-06-09 | Lg电子株式会社 | A mobile terminal and a method for controlling the related function of an external device |
| CN103888699A (en) * | 2012-12-20 | 2014-06-25 | 中强光电股份有限公司 | Projection device with video function and method for video conference by using same |
| CN203327085U (en) * | 2013-07-12 | 2013-12-04 | 沈阳华立德电子科技有限公司 | Controllable remote projection mobile phone |
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| WO2015184784A1 (en) | 2015-12-10 |
| CN105592279A (en) | 2016-05-18 |
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