CN115589581A - Bluetooth-based audio non-inductive transmission method for copilot entertainment system - Google Patents
Bluetooth-based audio non-inductive transmission method for copilot entertainment system Download PDFInfo
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- CN115589581A CN115589581A CN202211174972.3A CN202211174972A CN115589581A CN 115589581 A CN115589581 A CN 115589581A CN 202211174972 A CN202211174972 A CN 202211174972A CN 115589581 A CN115589581 A CN 115589581A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
The invention provides a Bluetooth-based audio non-inductive transmission method for a copilot entertainment system, which comprises the following steps: the auxiliary driving entertainment system and the central control entertainment system automatically receive the VIN code on the CAN bus of the vehicle and give the VIN code to respective Bluetooth modules to automatically change the name; after the copilot entertainment system receives the audio playing command, the copilot entertainment system Bluetooth module searches and judges whether the center control entertainment system Bluetooth module is connected or not, and if not, the copilot entertainment system Bluetooth module is actively connected with the center control entertainment system Bluetooth module; and the central control entertainment system Bluetooth module monitors the state of the transmitted audio stream, and switches to the audio output of the copilot entertainment system under the condition that the copilot entertainment system Bluetooth module requests to play the audio stream of the copilot entertainment system. According to the invention, bluetooth automatic pairing connection is realized through the vehicle VIN code, an audio wireless transmission channel is established, and automatic switching of the audio source of the secondary driving entertainment system on the central control entertainment system is realized through Bluetooth identity judgment.
Description
Technical Field
The invention mainly relates to an audio transmission method in a cockpit, in particular to a Bluetooth-based audio non-inductive transmission method for a copilot entertainment system.
Background
Along with the development of the intelligent cabin of the automobile, the copilot gradually becomes an exclusive entertainment space, the copilot can listen to music, watch movies, video calls and the like by wearing earphones in the driving process, sound can be emitted from a power amplifier loudspeaker in the automobile optionally, and the copilot entertainment system becomes standard configuration on a plurality of new automobile types.
At present, an Electronic Control Unit (ECU) is adopted by a part of whole car factories to Control a central Control display screen and a secondary driving display screen, and switching or transmission of sound can be flexibly controlled, but the mode depends on the hardware resource of the central Control ECU to be greatly improved, and the development and production of the traditional central Control entertainment system are mature, so that the problem of how to carry the secondary driving entertainment system beside the existing central Control entertainment system and make audio non-inductive transmission is solved. Therefore, some manufacturers adopt two ECUs to respectively control the central control display screen and the copilot display screen, the scheme needs to establish an audio transmission channel between the two ECUs, and the scheme adopts a hard-wire transmission mode such as an ethernet mode, so that the cost is high, the adaptation change amount of the central control ECU is large, and the structure is complex.
On the other hand, the common bluetooth devices need to be manually paired, and have more steps such as selection and search, the paired popup windows need to be manually confirmed, the operation is complex, particularly the first pairing is complex, and the situations that the paired devices are deleted by the vehicle machine and factory settings are restored may exist; meanwhile, connection and disconnection are frequent after pairing, and operation steps are more; secondly, after the bluetooth connection is successful, the media playing source still needs to be switched on the central control entertainment system, so that the operation is inconvenient and the user experience is poor; moreover, the bluetooth media Audio transmission protocol (A2 DP for short) only supports the connection of one device, and if the central control entertainment system is connected to the mobile phone, the central control entertainment system needs to be manually switched to connect to the assistant driving entertainment system.
Disclosure of Invention
It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure.
The technical problem to be solved by the invention is to realize Bluetooth automatic pairing connection through the VIN code of the vehicle, establish an audio wireless transmission channel, realize automatic switching of audio sources on two entertainment systems through Bluetooth identities and have good user experience.
In order to solve the technical problem, the invention provides a Bluetooth-based audio non-inductive transmission method for a copilot entertainment system, which is characterized by comprising the following steps:
the method comprises the following steps that firstly, a copilot entertainment system and a central control entertainment system automatically receive VIN codes on a CAN bus of a vehicle and give the VIN codes to respective Bluetooth modules to automatically change names;
after the auxiliary driving entertainment system receives an audio playing instruction, the auxiliary driving entertainment system Bluetooth module searches and judges whether the central control entertainment system Bluetooth module is connected or not, and if not, the auxiliary driving entertainment system Bluetooth module is actively connected with the central control entertainment system Bluetooth module;
and step three, the central control entertainment system Bluetooth module monitors the state of the transmitted audio stream, and switches to the audio output of the copilot entertainment system under the condition that the copilot entertainment system Bluetooth module requests to play the audio stream of the copilot entertainment system.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
in the active connection process of the second step, the copilot entertainment system Bluetooth module and the central control entertainment system Bluetooth module check the received Bluetooth name and VIN code, judge whether the Bluetooth name and VIN code correspond to each other, continue to search equipment under the condition of no correspondence, and pair the equipment under the condition of correspondence;
the pairing comprises the auxiliary driving entertainment system Bluetooth module and the central control entertainment system Bluetooth module, the auxiliary driving entertainment system Bluetooth module and the central control entertainment system Bluetooth module record identity address information of the other party, and the pairing is connected with a transmission protocol.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the active connection step of the second step further comprises,
the copilot entertainment system Bluetooth module sends the acquired VIN code through an SPP protocol to carry out identity verification, and after verification, the copilot entertainment system Bluetooth module and the central control entertainment system Bluetooth module are prompted to be successfully matched.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the step two and the step three further comprise:
step four, the central control entertainment system Bluetooth module judges whether to connect a mobile phone Bluetooth module, and under the condition of connection, the central control entertainment system Bluetooth module is disconnected from the mobile phone Bluetooth module and receives a connection request of the copilot entertainment system Bluetooth module; and under the condition of no connection, the central control entertainment system Bluetooth module directly establishes media audio transmission protocol connection with the copilot entertainment system Bluetooth module.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the fourth step further comprises the step of,
step five, the central control entertainment system Bluetooth module monitors the state of the transmitted audio stream and judges whether the copilot entertainment system Bluetooth module requests to play the audio stream of the copilot entertainment system or not;
under the condition that the playing is not requested, the central control entertainment system continues the current media state;
and under the condition of requesting playing, the central control entertainment system judges whether media playing exists currently, automatically switches to the media source of the copilot entertainment system to continue playing under the condition of the media playing, and directly plays the media of the copilot entertainment system under the condition of no media playing.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
and before the step one, judging whether a Bluetooth module of the assistant driving entertainment system is connected with an earphone, and if so, outputting audio by the earphone.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the identity address information comprises checked mac address information.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the media audio transport protocol comprises A2DP.
Preferably, the invention further provides a Bluetooth-based audio non-inductive transmission method for the copilot entertainment system, which is characterized in that,
the naming includes a manufacturer code number and a string of the VIN code.
Compared with the prior art, the method and the system have the advantages that the Bluetooth automatic pairing connection is realized through the vehicle VIN code, the audio wireless transmission channel is established, the automatic switching of the audio source of the secondary driving entertainment system on the central control entertainment system is realized through the Bluetooth identity judgment, the user experience is better, and the audio non-inductive transmission of the secondary driving entertainment system is realized.
Drawings
Embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Further, although the terms used in the present disclosure are selected from publicly known and used terms, some of the terms mentioned in the specification of the present disclosure may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Furthermore, it is required that the present disclosure is understood, not simply by the actual terms used but by the meaning of each term lying within.
The above and other objects, features and advantages of the present invention will become apparent to those skilled in the art from the following detailed description of the present invention with reference to the accompanying drawings.
FIG. 1 is a block diagram of the Bluetooth-based copilot entertainment system audio non-inductive transmission system of the present invention;
FIG. 2 is a flow chart of the Bluetooth pairing connection of the present invention;
fig. 3 is a flow chart of playing media through speakers in a copilot entertainment system using the present invention.
Reference numerals
1-copilot entertainment system
2-copilot entertainment system bluetooth module
3-central control entertainment system
4-Bluetooth module of central control entertainment system
5-vehicle CAN bus
6-mobile phone
7-mobile phone Bluetooth module
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
Flowcharts are used herein to illustrate the operations performed by systems according to embodiments of the present application. It should be understood that the preceding or following operations are not necessarily performed in the exact order in which they are performed. Rather, various steps may be processed in reverse order or simultaneously. Meanwhile, other operations are added to or removed from these processes.
The transmission method is based on the existing Bluetooth modules of two entertainment system ECUs to establish an audio transmission control method of an noninductive copilot entertainment system.
Please refer to fig. 1, which is a block diagram illustrating an audio non-inductive transmission system of a bluetooth-based secondary driving entertainment system according to the present invention.
The transmission system includes: the two entertainment systems are respectively a copilot entertainment system 1 and a central control entertainment system 3, each system is provided with a Bluetooth module, wherein the copilot entertainment system Bluetooth module 2 and the central control entertainment system Bluetooth module 4 are also provided with a mobile phone 6 serving as the mobile terminal, and the Bluetooth modules 2 and 4 in the two systems are in information transmission with a vehicle CAN bus 5.
Fig. 2 shows a flowchart of the bluetooth auto-pairing connection, and the detailed description of the steps in conjunction with the flowchart is as follows:
it should be noted that, when the bluetooth modules 2 and 4 in the assistant driving entertainment system 1 and the central control entertainment system 3 are turned on, the bluetooth modules broadcast their own bluetooth names and other information, and when receiving a trigger signal, the bluetooth module 2 may automatically search nearby bluetooth devices when a user plays a media or a transport signal on the CAN bus;
Checking the name of the external Bluetooth device and the received VIN code, wherein the VW code, the VIN number with four digits after the name and the complete VIN code received by the CAN bus are specifically checked;
if not, returning to the step 23 to continue searching the equipment;
and if so, turning to the step 25 for pairing, wherein the copilot entertainment system 1 and the central control entertainment system 3 do not need to display the pairing process on an interface according to the checking result in the pairing process, and the pairing is not sensed without manual operation of a user.
After the pairing is finished, the two bluetooth modules 2 and 4 remember the checked mac address information (unique identity of the bluetooth device) of each other, and simultaneously connect related protocols, such as a media audio transmission protocol (A2 DP).
It should be noted that, in the conventional bluetooth pairing method, the pairing can be performed only by popping a popup window of the pairing key on the interface of the receiving end, i.e., the center control entertainment system, and then inputting the key on the interface of the copilot entertainment system, and the step of automatically pairing the edges does not require manual key input.
and step 29, if the verification fails, the central control entertainment system Bluetooth module 4 deletes the paired information to prompt that the pairing fails.
Fig. 3 shows a flow chart of the secondary entertainment system playing media through a speaker, and the following is detailed in conjunction with the flow chart:
in step 32, is the secondary entertainment system 1 determine whether its bluetooth module 2 is connected to an earphone?
If the headset is connected, the priority of the headset is indicated, the step 33 is carried out, and the media of the copilot entertainment system 1 is directly output through the headset end;
if the headset is not connected, go to step 34, determine if the bluetooth module 2 of the secondary entertainment system 1 is connected to the bluetooth module 4 of the central entertainment system 3?
if the two Bluetooth modules 2 and 4 are not connected, the step 35 is carried out, and the auxiliary driving entertainment system Bluetooth module 2 is actively connected with the central control entertainment system Bluetooth module 4;
when judging whether the copilot entertainment system Bluetooth 2 and the central control entertainment system Bluetooth module 4 are connected, actually judging whether the two Bluetooth devices are paired, if not, performing the process of steps 23-29, if so, directly connecting the protocol, and the steps in FIG. 2 do not need to be repeated;
In this step, the management logic of the bluetooth module 4 of the central control entertainment system generally requires the user to manually disconnect one device to connect another device; at the moment, when the center control entertainment system Bluetooth 4 processes the connection request of the copilot entertainment system Bluetooth 2, whether the mobile phone is connected or not needs to be judged, if so, the connection with the mobile phone is automatically disconnected, and the connection request of the copilot entertainment system Bluetooth 2 is received;
if the two Bluetooth modules are connected, the step 37 is carried out, the central control entertainment system Bluetooth module 4 is disconnected from the mobile phone Bluetooth module 7, and the connection request of the auxiliary driving entertainment system Bluetooth module 2 is received;
if the two Bluetooth modules in the step 36 are not connected, the step 38 is carried out, and the central control entertainment system Bluetooth module 4 directly establishes the A2DP connection with the copilot entertainment system Bluetooth module 2;
in general, the user switches the media source manually without the need of identity information of the device, and plays the media source directly, and when the bluetooth audio is received by the central control entertainment system bluetooth 4, the identity of the current connected device is actually known. When the automatic source switching playing of the secondary driving entertainment system is realized, the Bluetooth identity of the secondary driving entertainment system is required to request for playing to the multimedia and HMI module from bottom to top, and at the moment, the multimedia and HMI module judges that the request is the Bluetooth request of the secondary driving entertainment system and automatically switches a media source;
and step 43, if the central control entertainment system 3 judges that no media is played currently, the media of the copilot entertainment system 1 is directly played, and the sound of the copilot entertainment system 1 is played through the loudspeaker of the whole vehicle.
In particular, steps 41 to 43 following step 39 implement automatic switching of media sources, avoiding manual operation.
In the process, if the auxiliary driving entertainment system outputs the media audio through the whole vehicle loudspeaker, the central control entertainment system can manually switch the media source, if the auxiliary driving user needs to listen separately by using the Bluetooth headset, the auxiliary driving entertainment system can select to connect the Bluetooth headset, the Bluetooth protocol of the central control entertainment system is disconnected, and the audio is output from the headset side. If the secondary driving entertainment system needs to carry out audio and video conversation, the secondary driving entertainment system is actively connected with HFP (conversation protocol) of the Bluetooth of the central control entertainment system and carries out conversation, so that the requirement of a secondary driving user on the output of conversation audio from a loudspeaker of the whole vehicle is met.
The innovation of the invention is mainly embodied in the following aspects:
firstly, bluetooth automatic pairing connection is realized through a vehicle VIN code, an audio wireless transmission channel is established, and user operation is not needed;
secondly, the automatic switching of the audio source of the secondary driving entertainment system on the central control entertainment system is realized through Bluetooth identity judgment, and the user experience is better;
thirdly, based on the existing hardware, the audio non-inductive transmission of the copilot entertainment system is realized, the cost is low, and the adaptation change amount of the central control ECU is small.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. The processor may be one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital signal processing devices (DAPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, or a combination thereof. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media. For example, computer-readable media can include, but are not limited to, magnetic storage devices (e.g., hard disk, floppy disk, magnetic tape … …), optical disks (e.g., compact Disk (CD), digital Versatile Disk (DVD) … …), smart cards, and flash memory devices (e.g., card, stick, key drive … …).
The computer readable medium may comprise a propagated data signal with the computer program code embodied therein, for example, on a baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, and the like, or any suitable combination. The computer readable medium can be any computer readable medium that can communicate, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device. Program code on a computer readable medium may be propagated over any suitable medium, including radio, electrical cable, fiber optic cable, radio frequency signals, or the like, or any combination of the preceding.
Having thus described the basic concept, it should be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (9)
1. A Bluetooth-based audio non-inductive transmission method for a copilot entertainment system is characterized by comprising the following steps:
the method comprises the following steps that firstly, a copilot entertainment system and a central control entertainment system automatically receive VIN codes on a CAN bus of a vehicle and give the VIN codes to respective Bluetooth modules to automatically change names;
after the auxiliary driving entertainment system receives an audio playing instruction, the auxiliary driving entertainment system Bluetooth module searches and judges whether the central control entertainment system Bluetooth module is connected or not, and if not, the auxiliary driving entertainment system Bluetooth module is actively connected with the central control entertainment system Bluetooth module;
and step three, the central control entertainment system Bluetooth module monitors the state of the transmitted audio stream, and switches to the audio output of the copilot entertainment system under the condition that the copilot entertainment system Bluetooth module requests to play the audio stream of the copilot entertainment system.
2. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 1,
in the active connection process of the second step, the copilot entertainment system Bluetooth module and the central control entertainment system Bluetooth module check the received Bluetooth name and VIN code, judge whether the Bluetooth name and VIN code correspond to each other, continue to search equipment under the condition of no correspondence, and pair the equipment under the condition of correspondence;
the pairing comprises the auxiliary driving entertainment system Bluetooth module and the central control entertainment system Bluetooth module, the auxiliary driving entertainment system Bluetooth module and the central control entertainment system Bluetooth module record identity address information of the other party and are connected with a transmission protocol.
3. The bluetooth-based audio non-inductive transmission method for a secondary entertainment system according to claim 2, wherein the step two of actively connecting further comprises,
the copilot entertainment system Bluetooth module sends the acquired VIN code through an SPP protocol to carry out identity verification, and after verification, the copilot entertainment system Bluetooth module and the central control entertainment system Bluetooth module are prompted to be successfully matched.
4. The bluetooth-based copilot entertainment system audio non-inductive transmission method of claim 3, further comprising between the second step and the third step:
step four, the central control entertainment system Bluetooth module judges whether a mobile phone Bluetooth module is connected, and under the condition of connection, the central control entertainment system Bluetooth module is disconnected from the mobile phone Bluetooth module and receives a connection request of the auxiliary driving entertainment system Bluetooth module; and under the condition of no connection, the central control entertainment system Bluetooth module directly establishes media audio transmission protocol connection with the copilot entertainment system Bluetooth module.
5. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 4, wherein the fourth step further comprises,
step five, the central control entertainment system Bluetooth module monitors the state of the transmitted audio stream and judges whether the copilot entertainment system Bluetooth module requests to play the audio stream of the copilot entertainment system or not;
under the condition that the playing is not requested, the central control entertainment system continues the current media state;
and under the condition of requesting playing, the central control entertainment system judges whether media playing exists currently, automatically switches to the media source of the copilot entertainment system to continue playing under the condition of the media playing, and directly plays the media of the copilot entertainment system under the condition of no media playing.
6. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 5,
and before the step one, judging whether a Bluetooth module of the assistant driving entertainment system is connected with an earphone, and if so, outputting audio by the earphone.
7. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 6,
the identity address information comprises checked mac address information.
8. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 7,
the media audio transport protocol comprises A2DP.
9. The Bluetooth-based copilot entertainment system audio non-sensory transmission method of claim 8,
the naming includes a manufacturer code number and a string of the VIN code.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117241253A (en) * | 2023-11-13 | 2023-12-15 | 成都智科通信技术股份有限公司 | Multi-audio self-adaptive switching play processing method, system, terminal and medium |
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| CN117241253A (en) * | 2023-11-13 | 2023-12-15 | 成都智科通信技术股份有限公司 | Multi-audio self-adaptive switching play processing method, system, terminal and medium |
| CN117241253B (en) * | 2023-11-13 | 2024-01-19 | 成都智科通信技术股份有限公司 | Multi-audio self-adaptive switching play processing method, system, terminal and medium |
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