CN104202461A - Connected smart phone function synchronizing automotive sound system - Google Patents
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- CN104202461A CN104202461A CN201410389471.6A CN201410389471A CN104202461A CN 104202461 A CN104202461 A CN 104202461A CN 201410389471 A CN201410389471 A CN 201410389471A CN 104202461 A CN104202461 A CN 104202461A
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Abstract
The present invention discloses a connected smart phone function synchronizing automotive sound system. The smart phone is provided with a first NFC module in an embedded manner and is built-in with a BT/WiFi module and a Miracast transmitting terminal based on a phone hardware, and the automotive sound system is provided with a second NFC module and a Miracast receiving terminal in near-field communication. The synchronization process is as follows: the first NFC module triggers the second NFC module in a manner of near-field communication, the smart phone and the automotive sound system respectively turn on WiFi receiving and transmitting terminals and Miracast receiving and transmitting terminals; information required for WiFi and Micracast connections is interacted in real time in a peer-to-peer communication mode: the automotive sound system is determined to be the connection object when the condition is satisfied, and connections are established according to WiFi and Micracast standard procedures; the smart phone in turn communicates image and sound signals of the phone with the automotive sound system through encoding, decoding and real-time transmission in preset format, and displays the signals with the automotive sound system and synchronizes a control signal to manipulate the smart phone. The system of the present invention improves the convenience and efficiency for the connection between the system and the smart phone and meanwhile reduces the complexity of the automotive sound system.
Description
Technical field
The present invention relates to a kind of expansion application of car audio system, relate in particular to a kind of from being dynamically connected the synchronized car audio system of smart mobile phone function and synchronous method thereof.
Background technology
Current automobile audio includes music, radio reception and navigation application, is an independently system substantially in automobile.Along with software systems development in recent years, the application of the software systems such as WinCE, Android, Linux, QNX, automobile audio entertainment systems has obtained very large development, and number of applications and quality also promote steadily, but still cannot to change it be an independently car audio system.Along with the application of the technology such as bluetooth and WiFi, 3G at automotive field, start to occur automobile-used internuncial popularization and development, car audio system can with mobile phone or external the Internet forming section linkage function.
But along with the high speed development of smart mobile phone, the APP of mobile phone terminal has also obtained thousands of application.But the development of automobile audio, does not far catch up with the development of smart mobile phone, particularly the promotion and application of APP application program.Imagine, whether whole application of smart mobile phone can be removed to car audio system, become numerous scientific workers' problem, also there are in the market some to adopt wired mode that automobile audio is connected with mobile phone, utilize the mode of the HDMI video output of mobile phone that mobile phone screen is mapped to automobile audio end, but adopt wired mode after all user to be made troubles.The connection that while inside and outside hangs with line at automobile can bring the insecurity of driving, and two aspect performances are all barely satisfactory.
Summary of the invention
Object of the present invention is intended to propose the synchronized car audio system of a kind of connection smart mobile phone function, solves by wireless interconnected and realizes the synchronized problem of cell-phone function between car audio system and smart mobile phone.
The synchronized car audio system of a kind of connection smart mobile phone function, it is characterized in that: described smart mobile phone is implanted and is provided with a NFC module and based on having BT/WiFi module and Miracast transmitting terminal in mobile phone hardware, and described car audio system is provided with the 2nd NFC module and the Miracast receiving terminal of near-field communication, synchronization process comprises step
I, two NFC modules closely contact, the one NFC module triggers the 2nd NFC module, smart mobile phone sends by NFC communication pairing and the request being connected of preparing, and open WiFi module and Miracast transmitting terminal simultaneously, car audio system is opened WiFi and Miracast receiving terminal after receiving request;
II, first, second NFC module entry point are to a communication mode, mutual WiFi is connected required information with Miracast in real time: car audio system by the 2nd NFC module to smart mobile phone send the WiFi MAC Address of the machine with after Miracast ability information in being connected wait state, smart mobile phone is processed in real time and judges the information receiving, to thering is the car audio system of Miracast ability, be automatically chosen as the connecting object of Miracast, and send WiFi Miracast pairing connection request;
III, car audio system receive after pairing connection request, and the TCP/IP that sets up successively WiFi with Miracast normal process by WiFi is connected, the point to point connect of WiFi is connected with RTSP;
After IV, successful connection, smart mobile phone carries out compressed encoding real-time Transmission to the car audio system connecting by mobile phone picture and voice signal by default form, car audio system receives on the one hand and mobile phone picture and voice signal is decoded, mobile phone picture content is put outward by loudspeaker by screen display, the sound of car audio system, car audio system is sent to smart mobile phone by control information by WiFi and carries out direct remote control on the other hand, realizes the synchronization mapping of smart mobile phone based on car audio system.
Further, in step I, when car audio system is under standby mode, a NFC module triggers after the 2nd NFC module wakeup of automotive sound system, and car audio system is opened WiFi and Miracast receiving terminal.
Further, the Miracast ability of described car audio system comprises the compatible format ability whether with UIBC, resolution of screen and audio frequency and video, and wherein said UIBC defines for the control information of car audio system being recycled to the mode of smart mobile phone.
Further, described control signal comprise user click screen, double-click screen, click screen position, the operation code of wiping action or virtual key on screen.
Car audio system proposed by the invention, compare to this kind equipment of tradition and possess comparatively significant advantage: this system completes search, selection, pairing and the complete procedure being connected by the disposable guiding of NFC near-field communication, convenience and efficiency that smart mobile phone is connected with car audio system have been improved, screen and various the controlling of simultaneously on car audio system, shining upon smart mobile phone, reduced the complexity of car audio system.
Accompanying drawing explanation
Fig. 1 is that car audio system of the present invention is containing the block diagram of smart mobile phone end.
Fig. 2 is the synchronized schematic flow sheet of car audio system cell-phone function of the present invention.
Embodiment
The present invention is directed to relatively lagging behind of smart mobile phone high speed development and automobile audio entertainment systems, a kind of novel automobile audio entertainment systems has been proposed, utilize touching technique and the WiFi wireless communication technique of near-field effect, mode by the screen of smart mobile phone by WiFi wireless transmission maps to automobile audio end, and in automobile audio end all application programs of remote control smart mobile phone end processed easily, and smart mobile phone does not need and direct wired being connected of automobile audio.
In order to solve being connected of smart mobile phone and car audio system more convenient and quicker, car audio system can be used the screen of smart mobile phone simultaneously, can directly control smart mobile phone at automobile audio end, uses all application programs of mobile phone completely; In order to reduce the complexity of automobile audio entertainment systems, can directly use the Navigator of mobile phone terminal simultaneously, reduce car audio system cost.The innovative technology solution of this creation is: smart mobile phone is implanted and to be provided with a NFC module and based on having BT/WiFi module and Miracast transmitting terminal in mobile phone hardware, and described car audio system is provided with the 2nd NFC module and the Miracast receiving terminal of near-field communication.As depicted in figs. 1 and 2, this programme in smart mobile phone and car audio system, carries out NFC, two technology organic combinations of Miracast interworking, realizes car audio system and shines upon and control synchronization smart mobile phone.
In car audio system, developed and utilized the 2nd NFC module to carry out mutual APP application program, utilize the principle of NFC near-field communication, this application program is carried out information interaction by Miracast standard search application program and outside simultaneously.The way that replaces conventionally utilizing WiFi direct search, comprises search, selects, and the process of pairing and link, above whole Four processes can complete by the disposable guiding of NFC near-field communication.Save the pairing connect hours, be user-friendly to simultaneously.
In the built-in BT/WiFi of smart mobile phone end and NFC hardware module.On application, increased Miracast function, in general mobile phone, generally, during Miracast work, can only carry out by the mode of wireless WiFi the WiFi equipment of manual search periphery, and whether identification has built-in Miracast function, as actions such as device/service discovery protocol, disposal ability information interactions, be all by the built-in program of Miracast standard, by WiFi, search for and find also alternately.After WiFi pairing, can carry out after mutual and identification information processing capability, the chain that can allow Miracast transmitting terminal and receiving terminal set up standard connects, and carries out radio interconnected.
And in this authoring system, the built-in NFC module of mobile phone itself, as ISO14443A/B read-write capability and P2P point-to-point communication, utilizes new APP application of NFC and Miracast exploitation.NFC in this APP application can carry out information interaction with the NFC module of automobile audio end, and mobile phone terminal APP is the information of getting from car audio system by NFC, directly reach the Miracast of mobile phone terminal, replace the mode of the conventional WiFi of use wireless search to reach to obtain the information of other device.
From detailed synchronization process, understand below the approach that realizes of this creation.
I, two NFC modules closely contact, the one NFC module triggers the 2nd NFC module, smart mobile phone sends by NFC communication pairing and the request being connected of preparing, and open WiFi module and Miracast transmitting terminal simultaneously, car audio system is opened WiFi and Miracast receiving terminal after receiving request;
II, first, second NFC module entry point are to a communication mode, real-time, interactive WiFi is connected required information with Miracast: car audio system by the 2nd NFC module to smart mobile phone send the WiFi MAC Address of the machine with after Miracast ability information in being connected wait state, smart mobile phone is processed in real time and judges the information receiving, to thering is the car audio system of Miracast ability, be automatically chosen as the connecting object of Miracast, and send WiFi Miracast pairing connection request;
III, car audio system receive after pairing connection request, and the TCP/IP that sets up successively WiFi with Miracast normal process by WiFi is connected, the point to point connect of WiFi is connected with RTSP;
After IV, successful connection, smart mobile phone carries out compressed encoding real-time Transmission to the car audio system connecting by mobile phone picture and voice signal by default form, car audio system receives on the one hand and mobile phone picture and voice signal is decoded, mobile phone picture content is put outward by loudspeaker by screen display, the sound of car audio system, car audio system is sent to smart mobile phone by control information by WiFi and carries out direct remote control on the other hand, realizes the synchronization mapping of smart mobile phone based on car audio system.
As optimizing or optional execution mode, in above-mentioned steps I, when car audio system is under standby mode, a NFC module triggers after the 2nd NFC module wakeup of automotive sound system, and car audio system is opened WiFi and Miracast receiving terminal.
Further, the Miracast ability of above-mentioned car audio system comprises the compatible format ability whether with UIBC, resolution of screen and audio frequency and video, and wherein said UIBC defines for the control information of car audio system being recycled to the mode of smart mobile phone.And above-mentioned control signal comprises user click screen, double-clicks screen, clicks screen position, the operation code of wiping action or virtual key on screen.
Be appreciated that in sum car audio system proposed by the invention, compare to this kind equipment of tradition and possess comparatively significant advantage: this system completes search, selection, pairing and the complete procedure being connected by the disposable guiding of NFC near-field communication, convenience and efficiency that smart mobile phone is connected with car audio system have been improved, screen and various the controlling of simultaneously on car audio system, shining upon smart mobile phone, reduced the complexity of car audio system.
Below embodiment by reference to the accompanying drawings describes, and is intended to be convenient to understand innovation essence of the present invention, but not with this, limits the claim protection range of the multifarious execution mode of the present invention and requirement.In every case understand the present invention, and the equivalent structure carrying out according to above-described embodiment changes or member is replaced, and can realize the design of identical object and effect, all should be considered as the infringement to present patent application protection content.
Claims (4)
1. connect the synchronized car audio system of smart mobile phone function, it is characterized in that:
Described smart mobile phone is implanted and is provided with a NFC module and based on having BT/WiFi module and Miracast transmitting terminal in mobile phone hardware, and described car audio system is provided with the 2nd NFC module and the Miracast receiving terminal of near-field communication, synchronization process comprises step
I, two NFC modules closely contact, the one NFC module triggers the 2nd NFC module, smart mobile phone sends by NFC communication pairing and the request being connected of preparing, and open WiFi module and Miracast transmitting terminal simultaneously, car audio system is opened WiFi and Miracast receiving terminal after receiving request;
II, first, second NFC module entry point are to a communication mode, mutual WiFi is connected required information with Miracast in real time: car audio system by the 2nd NFC module to smart mobile phone send the WiFi MAC Address of the machine with after Miracast ability information in being connected wait state, smart mobile phone is processed in real time and judges the information receiving, to thering is the car audio system of Miracast ability, be automatically chosen as the connecting object of Miracast, and send WiFi Miracast pairing connection request;
III, car audio system receive after pairing connection request, and the TCP/IP that sets up successively WiFi with Miracast normal process by WiFi is connected, the point to point connect of WiFi is connected with RTSP;
After IV, successful connection, smart mobile phone carries out compressed encoding real-time Transmission to the car audio system connecting by mobile phone picture and voice signal by default form, car audio system receives on the one hand and mobile phone picture and voice signal is decoded, mobile phone picture content is put outward by loudspeaker by screen display, the sound of car audio system, car audio system is sent to smart mobile phone by control information by WiFi and carries out direct remote control on the other hand, realizes the synchronization mapping of smart mobile phone based on car audio system.
2. connect according to claim 1 the synchronized car audio system of smart mobile phone function, it is characterized in that: in step I, work as car audio system under standby mode, the one NFC module triggers after the 2nd NFC module wakeup of automotive sound system, and car audio system is opened WiFi and Miracast receiving terminal.
3. connect according to claim 1 the synchronized car audio system of smart mobile phone function, it is characterized in that: the Miracast ability of described car audio system comprises the compatible format ability whether with UIBC, resolution of screen and audio frequency and video, wherein said UIBC defines for the control information of car audio system being recycled to the mode of smart mobile phone.
4. according to connecting the synchronized car audio system of smart mobile phone function described in claim 1 or 3, it is characterized in that: described control signal comprises user click screen, double-clicks screen, clicks screen position, the operation code of wiping action or virtual key on screen.
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| CN116708910A (en) * | 2023-06-09 | 2023-09-05 | 广东保伦电子股份有限公司 | NFC-based audio and video pushing method, device and system |
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