CN201166978Y - A car multimedia player - Google Patents

Abstract

The utility model is applicable to the communication field, and provides a vehicle-mounted multimedia playback device, which includes a vehicle-mounted operating system, a control instruction receiving unit electrically connected to the vehicle-mounted operating system, a vehicle-mounted Bluetooth unit, a vehicle-mounted data processing unit, and a vehicle-mounted video and audio player The vehicle-mounted data processing unit is electrically connected to the vehicle-mounted Bluetooth unit and the vehicle-mounted audio-visual playback unit, and the device also includes a Bluetooth external terminal for performing Bluetooth communication with the vehicle-mounted Bluetooth unit. In the utility model, the vehicle-mounted multimedia playback device establishes Bluetooth communication with the Bluetooth external terminal through the vehicle-mounted Bluetooth unit, and transmits the audio-visual files stored in the Bluetooth external terminal to the vehicle-mounted multimedia playback device for playback, thereby allowing users to enjoy more conveniently. While enjoying the audio-visual impact brought by the vehicle-mounted multimedia playback device, the cost is saved.

Description

A car multimedia player

technical field

The utility model belongs to the communication field, in particular to a vehicle-mounted multimedia player capable of playing video and audio files stored in a bluetooth external device.

Background technique

At present, most of the vehicle-mounted multimedia playback devices are limited to playing audio-visual files stored in multimedia media (such as CDs, VCDs, DVDs, etc., or magnetic tapes). Because the audio-visual files stored in multimedia media generally cannot be updated, even if they can be updated, the update The process is also too cumbersome. Therefore, when it is necessary to obtain more audio-visual enjoyment through the vehicle-mounted multimedia player device, it is necessary to purchase more multimedia media, which greatly increases the cost.

Some existing vehicle-mounted multimedia players can play video and audio files stored in the USB device through the USB interface. Because the vehicle-mounted multimedia player and the USB device are connected by physical wires, there is a lot of inconvenience. On the other hand, Bluetooth technology is a wireless network connection technology. It establishes a common radio air interface and an open standard for control software, so that wireless communication technology and computer technology can be closely integrated, so that portable devices produced by different manufacturers can operate without wires or When the cables are connected to each other, they have interoperable and interoperable performance within a short distance, replacing the cables between fixed and mobile communication equipment. Terminals with Bluetooth communication functions and large-capacity memory cards, such as mobile terminals, are becoming more and more common. However, at present, the application of multimedia playback devices with Bluetooth function in vehicles is mainly focused on, such as Bluetooth mobile phone communication, playing the sound signal of the mobile phone on the vehicle's audio system through Bluetooth communication, or displaying the incoming call number through the vehicle multimedia screen. wait. As mentioned above, the audio-visual files that can be played in the current vehicle-mounted multimedia player are all CDs, VCDs, DVDs, etc., or are stored on the storage media installed in the vehicle itself, so the audio-visual files stored in the multimedia media Generally, it cannot be updated. Even if it can be updated, the update process is too cumbersome, and an additional external mobile storage unit needs to be added, which increases the cost of the car owner. Therefore, if the vehicle-mounted multimedia player can communicate with an external terminal with a Bluetooth communication function and a large-capacity memory card through Bluetooth, thereby directly reading audio-visual files from the external terminal and outputting audio-visual content through the playback unit in the vehicle-mounted multimedia player, It can allow car owners to update the audio-visual files they need more conveniently and quickly, and enjoy the audio-visual impact brought by the car multimedia player.

Utility model content

The purpose of the utility model is to provide a vehicle-mounted multimedia player device, aiming at solving the problem that the vehicle-mounted multimedia player device in the prior art is difficult to wirelessly play audio-visual files stored in an external terminal.

The utility model is achieved in this way, a vehicle-mounted multimedia player, said device includes a vehicle-mounted operating system, a control command receiving unit electrically connected to the vehicle-mounted operating system, a vehicle-mounted Bluetooth unit, a vehicle-mounted data processing unit, and a vehicle-mounted audio-visual player unit, The vehicle-mounted data processing unit is electrically connected with the vehicle-mounted Bluetooth unit and the vehicle-mounted audio-visual playback unit, and the device also includes a Bluetooth external terminal for performing Bluetooth communication with the vehicle-mounted Bluetooth unit. The on-vehicle data processing unit unpacks and converts the audio-visual files obtained from the Bluetooth external terminal, and then outputs the audio-visual content through the on-vehicle audio-visual playback unit.

In the utility model, the vehicle-mounted multimedia playback device establishes Bluetooth communication with the Bluetooth external terminal through the vehicle-mounted Bluetooth unit, and transmits the audio-visual files stored in the Bluetooth external terminal to the vehicle-mounted multimedia playback device for playback, thereby allowing users to enjoy more conveniently. While enjoying the audio-visual impact brought by the vehicle-mounted multimedia playback device, the cost is saved.

Description of drawings

Fig. 1 is a schematic diagram of the structural connection between the vehicle-mounted multimedia player provided by the present invention and the Bluetooth external terminal.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the utility model, the vehicle-mounted multimedia player establishes Bluetooth communication with the Bluetooth external terminal through the Bluetooth unit, and transmits the video and audio files stored in the Bluetooth external terminal to the vehicle-mounted multimedia player for playback.

Fig. 1 shows the connection structure between the vehicle-mounted multimedia player provided by the present invention and the Bluetooth external terminal, and for the convenience of description, only the parts relevant to the present invention are shown.

The vehicle-mounted multimedia player 1 provided by the utility model includes a vehicle-mounted operating system 12, a control command receiving unit 11 electrically connected with the vehicle-mounted operating system 12, a vehicle-mounted Bluetooth unit 13, a vehicle-mounted data processing unit 14, a vehicle-mounted audio-visual playback unit 15, and a radio unit 16 and multimedia reader 17. Wherein the vehicle-mounted data processing unit 14 is electrically connected with the vehicle-mounted Bluetooth unit 13 and the vehicle-mounted audio-visual playing unit 15 .

Correspondingly, the Bluetooth external terminal 2 provided by the present invention includes a terminal operating system 21 , a Bluetooth unit 22 electrically connected to the terminal operating system 21 , a terminal data processing unit 23 and a terminal audio-visual storage unit 24 . The terminal data processing unit 23 is electrically connected with the Bluetooth unit 22 and the terminal video and audio storage unit 24 .

In the present embodiment, the vehicle-mounted operating system 12 in the vehicle-mounted multimedia player 1 can adopt the chip of the SAMSUNG MP2525 type, and the vehicle-mounted bluetooth unit 13 can adopt the chip of the BlueCore5 type; The terminal operating system 21 in the Bluetooth external terminal 2 can adopt the chip of the OMAP850 type Chip, the bluetooth unit 22 can adopt the chip of CLASS2 (BC02) type.

The control instruction receiving unit 11 receives various control instructions sent by the user to control the vehicle-mounted multimedia player, such as audio/video file play/stop instructions, radio control instructions, multimedia reading control instructions, and the like. By setting a play button in the vehicle-mounted multimedia player device, when the user presses the play button, the video and audio file play instruction sent by the user can be received.

The vehicle-mounted operating system 12 controls the vehicle-mounted Bluetooth unit 13, the vehicle-mounted data processing unit 14, the vehicle-mounted audio and video player unit 15, the radio unit 16 and the multimedia reading device 17 in the vehicle-mounted multimedia player device according to the control command received by the control command receiving unit 11 and coordination. For example, when the control instruction receiving unit 11 received the audio-visual file play command, the vehicle-mounted operating system 12 sent to the vehicle-mounted bluetooth unit 13 after performing format conversion to the video-visual file play command; 12 Control the vehicle-mounted data processing unit 14 to unpack and format the received audio-visual files; when the control command receiving unit 11 receives the radio control command, the vehicle-mounted operating system 12 controls the radio unit 16 to listen, change channels, stop listening, etc. Operation: when the control instruction receiving unit 11 received the multimedia reading control instruction, the vehicle-mounted operating system 12 controlled the multimedia reading device 17 to read and store on the multimedia storage medium installed on the vehicle itself, such as CDs, VCDs, DVDs and other optical disks The audio-visual file stored in the computer is played by the vehicle-mounted audio-visual playback unit 15.

Under the control of the vehicle-mounted operating system 12, the vehicle-mounted bluetooth unit 13 searches for the Bluetooth external terminal 2 that can carry out Bluetooth communication with the vehicle-mounted multimedia player 1, and sends a connection request to the Bluetooth external terminal 2 that can be searched for Bluetooth communication, so as to communicate with the vehicle-mounted multimedia player 1 The Bluetooth external terminal 2 capable of Bluetooth communication establishes a Bluetooth communication connection. The way of establishing the Bluetooth communication connection between the vehicle-mounted Bluetooth unit 13 and the Bluetooth external terminal is the same as that of the prior art, and will not be repeated here. After the Bluetooth communication connection is established, Bluetooth communication can be performed between the vehicle-mounted multimedia player 1 and the Bluetooth external terminal 2 . The on-vehicle Bluetooth unit 13 forwards the audio-video file play instruction sent by the on-board operating system 12 to the Bluetooth external terminal 2 to request the Bluetooth external terminal 2 to play the audio-video file. At the same time, the in-vehicle Bluetooth unit 13 receives the video and audio files sent back from the Bluetooth external terminal 2 , and sends the received audio and video files to the in-vehicle data processing unit 14 .

The on-vehicle data processing unit 14 performs unpacking and format conversion on the audio file transmitted by the on-vehicle Bluetooth unit 13 , restores the format of the audio file to a common audio-visual file format, and transmits it to the audio-visual playback unit 15 . The audio-video playback unit 15 decodes the audio-video file and plays it. It can adopt general-purpose media player, such as Media player etc. to play this audio-visual file, also can customize player as required, play this audio-visual file, to reach better playback effect.

When there are multiple audio-visual files stored in the Bluetooth external terminal 2 , the vehicle-mounted Bluetooth unit 13 sends all the received multiple audio-visual files to the vehicle-mounted data processing unit 14 . The on-vehicle data processing unit 14 unpacks and converts the formats of the received multiple audio-visual files, and restores the format of all audio-visual files to the format of common audio-visual files. Since there are multiple audio-visual files, the brief information of the multiple audio-visual files can be displayed through a display device, such as a display screen, and the user can choose which audio-visual file to play specifically.

The radio unit 16 allows the user to listen to radio broadcasts. The multimedia reading device 17 reads the audio-visual files in the multimedia media placed therein, such as audio-visual files stored in CDs, VCDs, DVDs, etc., and plays them by the vehicle-mounted audio-visual playback unit 15 .

The bluetooth external terminal 2 establishes bluetooth communication with the vehicle-mounted multimedia player through its bluetooth unit 22 .

Various audio-visual files are stored in the audio-video file storage unit 24 .

After the Bluetooth external terminal 2 establishes a Bluetooth connection with the vehicle-mounted multimedia player 1 through its Bluetooth unit 22 , the Bluetooth unit 22 receives the audio-video file playback instruction sent by the vehicle-mounted Bluetooth unit 13 . And send the audio-video file play instruction to the terminal operating system 21. The terminal operating system 21 searches the stored video and audio files from the video and audio file storage unit 24, and starts the terminal data processing unit 23 to process the searched video and audio files. The terminal data processing unit 23 performs format conversion and data packaging on the searched audio-visual files according to the bluetooth wireless transmission protocol, so that the format of the audio-visual files meets the format requirements of bluetooth transmission, and transmits the converted and packaged audio-visual files through the bluetooth unit 22 To the vehicle-mounted Bluetooth unit 13 of the vehicle-mounted multimedia player. Wherein, the bluetooth communication technology is well known to those skilled in the art, so it will not be repeated here.

Hereinafter, the vehicle-mounted multimedia player device adopts bluetooth communication to play audio-visual files in the mobile terminal as an example to describe in detail. At this time, the Bluetooth external terminal 2 is a mobile terminal.

Firstly, the user sends an audio-visual file play command through the play button provided in the vehicle-mounted multimedia player 1 , and the control command receiving unit 11 sends the received video-audio file play command to the vehicle-mounted operating system 12 . The on-vehicle operating system 12 converts the format of the audio-video file play command and sends it to the on-vehicle Bluetooth unit 13 . The vehicle-mounted Bluetooth unit 13 starts to search for currently available mobile terminals 2 , and sends a Bluetooth connection request to the searched available mobile terminals 2 . Wherein the mobile terminal 2 has a bluetooth communication function. If multiple available mobile terminals 2 are searched at the same time, the user may select one of the mobile terminals 2 to connect. The connection mode of Bluetooth is the same as the connection mode of Bluetooth in the prior art. After the connection is successful, the vehicle bluetooth unit 13 sends the received video file play instruction to the mobile terminal 2 . The bluetooth unit 22 of mobile terminal 2 sends the audio-visual file playing instruction that receives to terminal operating system 21, and terminal operating system 21 starts to search the audio-visual file stored in this bluetooth external terminal 2, and starts terminal data processing unit 23 to search for the audio-visual file. The files are format converted and data packaged according to the Bluetooth wireless transmission protocol, and the packaged video and audio files are sent to the Bluetooth unit 22 . The video and audio files received by the bluetooth unit 22 are sent back to the car bluetooth unit 13 . The on-vehicle bluetooth unit 13 transmits the received audio-visual file to the on-vehicle data processing unit 14, and the on-vehicle data processing unit 14 unpacks and format-converts the received packaged audio-visual file, and restores the format of the audio-visual file to a common audio-visual file format , and transmit it to the vehicle-mounted audio-visual playback unit 15, which decodes and plays it by the vehicle-mounted audio-visual playback unit 15. Car audio-visual player unit 15 can adopt general media player, as Media player etc., also can customize a player as required, to reach better playback effect. In the utility model, the vehicle-mounted multimedia player establishes Bluetooth communication with the Bluetooth external terminal with the Bluetooth communication function through the vehicle-mounted Bluetooth unit, so that the audio-visual files stored in the Bluetooth external terminal can be transmitted to the vehicle-mounted multimedia player for playback, making the owner more comfortable. Conveniently enjoy the audio-visual impact brought by the car multimedia player.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A vehicle-mounted multimedia player, characterized in that the device includes a vehicle-mounted operating system, a control command receiving unit electrically connected to the vehicle-mounted operating system, a vehicle-mounted Bluetooth unit, a vehicle-mounted data processing unit, and a vehicle-mounted audio-visual playback unit, the The vehicle-mounted data processing unit is electrically connected with the vehicle-mounted Bluetooth unit and the vehicle-mounted audio-visual playback unit, and the device also includes a Bluetooth external terminal for Bluetooth communication with the vehicle-mounted Bluetooth unit, and the vehicle-mounted data processing unit will obtain from the Bluetooth external terminal After the audio-visual files are unpacked and format-converted, the audio-visual content is output through the vehicle-mounted audio-visual playback unit. 2. The device according to claim 1, wherein the bluetooth external terminal includes a terminal operating system, a bluetooth unit electrically connected to the terminal operating system, a terminal data processing unit, and an audio-visual file storage unit, and the terminal data The processing unit is electrically connected with the bluetooth unit and the video file storage unit. 3. The device according to claim 2, wherein the Bluetooth external terminal establishes Bluetooth communication with the vehicle-mounted Bluetooth unit through the Bluetooth unit, and transmits the audio-visual files stored in the audio-video file storage unit to the Car bluetooth unit. 4. The device according to claim 2, wherein the terminal operating system uses an OMAP850 chip, and the Bluetooth unit uses a CLASS2 chip. 5. The device according to claim 1, further comprising a radio unit and a multimedia reading device electrically connected to the vehicle operating system. 6. The device according to claim 1, wherein the audio-video playback unit uses a general-purpose media player to play the audio-video file, or customizes a player as required to play the audio-video file. 7. The device according to claim 1, wherein the vehicle operating system adopts a SAMSUNG MP2525 chip, and the vehicle Bluetooth unit adopts a BlueCore5 chip.

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