Automobile audio player system

Abstract

The utility model relates to an automobile audio player system, which belongs to the technical field of vehicle-mounted automobile players and comprises a third-party player, a Bluetooth module and an automobile host navigation system, the third-party player is connected with the automobile host navigation system through the Bluetooth module, and the third-party player is connected with the automobile host navigation system through the Bluetooth module. And the automobile host navigation system is communicated with the microphone so as to receive audio data of the microphone. The system perfectly solves the connection and control of the original vehicle host and the external third-party high-definition player through the Bluetooth device, realizes the bidirectional control and stable transmission of audio streaming media signals by both parties, and maintains low-power consumption and low-cost control while ensuring high-quality music transmission. The third-party player does not need to be externally connected with a control panel and a direction controller, all functions of direction control can be achieved, a new way for connection and control of an original vehicle host and the externally-connected third-party player in the automobile sound equipment refitting industry is opened up, and perfect fusion of the original vehicle host and the player is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of car players, in particular to a car audio player system. Background Art

[0002] At present, for most car owners, the original car host player has poor sound quality and does not support the playback of lossless music. In order to pursue good sound quality and achieve lossless installation, most car owners will choose an external third-party high-definition lossless player; but in the current car audio modification industry, after the user installs an external player, the car steering wheel buttons cannot directly control the external third-party high-definition player, and it cannot achieve a perfect integration with the original car host. For example, frequently lowering the head to operate the mobile phone, navigation, switching songs, etc. during driving is extremely inconvenient and dangerous; after the car audio is equipped with an external player, in order to simply and roughly solve the phenomenon of frequently lowering the head to switch the sound source by controlling the mobile phone APP during driving, the market has already used a matching external control panel for simple operation, and the simple switching of the sound source is achieved through a simple wire controller; but it cannot solve the high-quality enjoyment of the car music and the faster operation during driving; in order to solve the problems of poor sound, trouble listening to songs, inconvenient operation, etc., and to ensure safety during driving, the original car square controller has also been launched on the market, and the connection with the original car host is achieved through the square controller. Although installing a square controller can allow the buttons on the car steering wheel to control external high-definition players, such as selecting songs, switching songs, adjusting volume, pausing, switching audio sources, etc., to achieve multi-channel independent control, and combine the HIFI audio source host with the square controller product to achieve high-definition lossless playback, the current status of the square controller is complex to use and supports limited car models, such as the original car square controller product currently launched by Gehang. Utility Model Content

[0003] The utility model overcomes the shortcomings of the prior art and provides a

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] The first aspect of the utility model provides a car audio player system, characterized in that the player system comprises:

[0006] A third-party player, a Bluetooth module and a car host navigation system, wherein the third-party player is connected to the car host navigation system via the Bluetooth module, and the car host navigation system is connected to a microphone to receive audio data from the microphone.

[0007] Furthermore, in the present invention, after the car host navigation system is successfully connected to the Bluetooth module, control information is sent to the Bluetooth module, and Bluetooth transmits the control information to a third-party high-definition player via a serial port.

[0008] Further, in the present utility model, by I 2 The S bus inputs the control information into the third-party high-definition player and transmits it to the audio device for output.

[0009] Further, in the present invention, the audio signal of the third-party high-definition player uses a serial port to transmit music information, and is transmitted through I 2 The S bus transmits the audio signal to the Bluetooth module.

[0010] Furthermore, in the present invention, the music information includes lyrics, song title, album and song progress information of the played music.

[0011] Furthermore, in the present invention, the Bluetooth module transmits the audio signal received by the microphone to the car host navigation system through the Bluetooth AVRCP internal control protocol.

[0012] Furthermore, in the present invention, the Bluetooth AVRCP internal control protocol at least includes the control operations of play, pause, volume control, previous song, and next song.

[0013] The utility model solves the defects existing in the background technology, and has the following

[0014] Beneficial effects:

[0015] 1. It perfectly solves the problem that different decoding square controllers need to be developed for different car models, resulting in limited supported car models. Bluetooth is more universal, which can achieve almost 100% coverage of car models, solve all car models, break through the bottleneck of original car and technology adaptation and integration, and bring a high experience to the majority of car owners and car enthusiasts.

[0016] 2. Through the internal protocol of Bluetooth AVRCP, the lyrics and song status of third-party players can be transmitted to the original car host, and displayed through the navigation human-machine interface, etc., to solve the problem that the decoding control box cannot transmit and display lyrics and song status information;

[0017] 3. Through the Bluetooth control protocol, the original car host controller can directly control the music signal of the third-party player (play / pause, volume control, previous song / next song, etc.). This implementation retains the existing functions of the decoding controller on the market;

[0018] 4. Bluetooth is a wireless transmission device. As the main device, after the first successful connection and pairing, it will actively search and connect to the Bluetooth of the original car host each time it is turned on and restarted, realizing automatic wireless connection. The user does not need to operate the connection every time, which solves the problem of using a dedicated wiring harness for the decoding control and reduces the trouble of various complex wiring. It truly provides users with more convenience and saves costs.

[0019] In the car audio modification industry, this system perfectly solves the connection and control between the original car host and the external third-party high-definition player through Bluetooth devices, realizes two-way control and stable transmission of audio streaming signals, and maintains low power consumption and low-cost control while ensuring high-quality music transmission. The third-party player can realize all the functions of the square control without an external control panel and square controller, opening up a new way for the connection and control of the original car host and external third-party players in the car audio modification industry, and realizing the perfect integration of the original car host and the player. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is a schematic diagram of a car audio playback system;

[0022] Figure 2 This is a schematic diagram of the improved car audio playback system. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the utility model, the reference to "embodiment", "one embodiment", "some embodiments", or "other embodiments" indicates that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least some embodiments, but not necessarily all embodiments. Multiple occurrences of "embodiment", "one embodiment", or "some embodiments" do not necessarily all refer to the same embodiment. If the specification describes that a component, feature, structure or characteristic "may", "perhaps" or "can" be included, the specific component, feature, structure or characteristic is not necessarily included. If the specification or claim mentions "one" element, it does not mean that there is only one element. If the specification or claim mentions "another" element, it does not exclude the presence of more than one other element. In addition, specific features, structures, functions or characteristics can be combined in one or more embodiments in any suitable manner. For example, the first embodiment can be combined with the second embodiment, as long as the specific features, structures, functions or characteristics associated with the two embodiments are not mutually exclusive.

[0025] In the description of the present invention, unless otherwise specified, the use of ordinal adjectives such as "first", "second", and "third" to describe a common object only refers to different instances of the same object, and does not imply that the objects described in this way must adopt a given order, whether in time, space, order, or any other manner. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] like Figure 1 As shown, it is well known that the square control needs to crack the CAN bus protocol of each car to achieve the adaptation of mainstream models. Different models have different requirements for the CAN bus protocol, so different decoding square control boxes need to be developed for each model, and the more complex model CAN bus protocol cannot be cracked at present, and the supported models are limited. 2. The current square controller only supports the transmission and control of button information, and cannot transmit music signals and the information and status of song and lyrics playback; in addition, the square controller needs to be equipped with a special car-specific wiring harness for connection, with many kinds of wiring, complex design and high cost.

[0028] like Figure 2 As shown, the first aspect of the utility model provides a car audio player system, characterized in that the player system includes:

[0029] A third-party player, a Bluetooth module and a car host navigation system, wherein the third-party player is connected to the car host navigation system via the Bluetooth module, and the car host navigation system is connected to a microphone to receive audio data from the microphone.

[0030] Furthermore, in the present invention, after the car host navigation system is successfully connected to the Bluetooth module, control information is sent to the Bluetooth module, and Bluetooth transmits the control information to a third-party high-definition player via a serial port.

[0031] It should be noted that the control information includes steering wheel or navigation previous / next song, volume, play / pause.

[0032] Further, in the present utility model, by I 2The S bus inputs the control information into the third-party high-definition player and transmits it to the audio device for output.

[0033] Further, in the present invention, the audio signal of the third-party high-definition player uses a serial port to transmit music information, and is transmitted through I 2 The S bus transmits the audio signal to the Bluetooth module.

[0034] Furthermore, in the present invention, the music information includes lyrics, song title, album and song progress information of the played music.

[0035] Furthermore, in the present invention, the Bluetooth module transmits the audio signal received by the microphone to the car host navigation system through the Bluetooth AVRCP internal control protocol.

[0036] Furthermore, in the present invention, the Bluetooth AVRCP internal control protocol at least includes the control operations of play, pause, volume control, previous song, and next song.

[0037] It should be noted that the AVRCP protocol defines the characteristics of audio streaming media and the two-way interaction of information, including play / pause, volume control, previous song / next song and other control operations. After the car host navigation system is successfully connected to the Bluetooth module, the steering wheel or navigation previous song / next song, volume, play / pause and other control information is sent to the Bluetooth module. Bluetooth transmits these key control information received from the original car host to the MCU of the external third-party HD player through the serial port. 2 The S bus inputs the received control signal into the player to realize the control of the player's audio streaming media previous / next song, volume control, play / pause and other key information, and transmits it to the audio device for output.

[0038] Among them, the audio signal of the third-party high-definition player uses the serial port to transmit the lyrics, song name, album, song progress and other information of the played music through I 2 The S bus transmits the audio signal to the Bluetooth module, and Bluetooth transmits the received audio signal to the car host navigation through the internal AVRCP control protocol, and then displays the lyrics, song title, album, song progress and other information transmitted via Bluetooth on the navigation interface, realizing the connection control and two-way transmission between the original car host navigation and the external third-party HD player, achieving perfect integration.

[0039] It should be noted that the present invention perfectly solves the problem that different decoding square controllers need to be developed for different car models, resulting in limited supported car models. Bluetooth is more universal, and can achieve almost 100% coverage of car models, solve all car models, break through the bottleneck of original car and technology adaptation and integration, and bring a high experience to the majority of car owners and car enthusiasts. On the other hand, through the Bluetooth AVRCP internal protocol, the lyrics and song status of the third-party player can be transmitted to the original car host, and displayed through the navigation human-machine interface, etc., to solve the problem that the decoding square control box cannot transmit and display lyrics and song status information. On the other hand, through the Bluetooth control protocol, the original car host control can directly control the music signal of the third-party player (play / pause, volume control, previous song / next song, etc.). This retains the existing functions of the decoding control on the market; finally, Bluetooth is wireless transmission. As the main device, after the first successful connection and pairing, it will actively search and connect to the Bluetooth of the original car host after each startup and restart, realizing automatic wireless connection. There is no need for the user to operate the connection every time. This solves the problem of the decoding control having to use a dedicated wiring harness to plug in and reduce the trouble of various complex wiring, truly providing users with more convenience and saving costs.

[0040] In summary, the Bluetooth AVRCP protocol perfectly solves the connection and control between the car host navigation system and the third-party HD player; there is no need to install a controller to realize the square control function, which saves costs, ensures driving safety, and provides a good user experience; Bluetooth wireless connection and transmission has a wide recognition range and higher versatility, achieving almost 100% coverage of car models.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

[0042] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A car audio player system, characterized in that: The player system comprises: A third-party player, a Bluetooth module and a car host navigation system, wherein the third-party player is connected to the car host navigation system via the Bluetooth module, and the car host navigation system is connected to a microphone to receive audio data from the microphone; After the car host navigation system is successfully connected to the Bluetooth module, the control information is sent to the Bluetooth module, and the Bluetooth transmits the control information to the third-party high-definition player via the serial port; The control information is input into the third-party high-definition player through the I²S bus, and transmitted to the audio device for output; The audio signal of the third-party high-definition player uses the serial port to transmit music information, and transmits the audio signal to the Bluetooth module through the I²S bus; The music information includes the lyrics, song title, album and song progress information of the played music; The Bluetooth module transmits the audio signal received by the microphone to the car host navigation system through the Bluetooth AVRCP internal control protocol; The Bluetooth AVRCP internal control protocol at least includes the control operations of play, pause, volume control, previous song, and next song.

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