Support for fixing vehicle-mounted multimedia equipment
A technology of in-vehicle multimedia and multimedia system, which is applied in the field of fixing brackets for in-vehicle multimedia equipment, can solve the problems of inability to watch TV, do not support IPOD playback, and single function, and achieve the effect of enriching the life in the car
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Embodiment 1
[0044] Such as figure 2As shown, the MPEG main control chip includes: an audio processing module, a video processing module, a picture processing module, a document processing module, an interface module; an audio processing module for processing audio files in MP3, WMA, WAV, ASF or AVI formats The video processing module is used to process video files in MPEG1, MPEG2, MPEG4, DIVX3, DIVX5 or XVID format; the image processing module is used to process pictures in JPEG and BMP formats; the document processing module is used to process documents in TXT format; interface module for supporting I 2 C bus, support USB-OTG function.
[0045] The MPEG main control chip is a processor based on DSP processing and ARM12 processing system. JPEG etc. The peripheral interface of the MPEG main control chip mainly includes memory interface, USB interface, memory card interface, camera interface, hard disk interface, display interface, network interface and so on. Support SDRAM, support DD...
Embodiment 2
[0048] Such as image 3 As shown, the digital TV receiving module is used to receive digital mobile TV signals of DVB-T, DMB-TH or ATSC; the digital TV receiving module includes: a radio frequency tuner and a demodulator; a radio frequency tuner is used for The received radio frequency signals of multiple bands are sent to the demodulator after low-noise amplification, frequency mixing, DC correction, low-pass filtering and gain amplification; the demodulator is used to convert the received zero-IF The signal, after channel demodulation and forward error correction, forms a TS stream in a standard format, and is used to send the TS stream to the MPEG main control chip for decoding and restoration, and then play a TV program through the display screen.
[0049] Because the digital TV receiving module of this system is composed of two parts, which are radio frequency tuner (RF Tuner front-end chip) and demodulator (Demodulator demodulation chip), such as image 3 As shown, RF T...
Embodiment 3
[0052] Such as Figure 4 As shown, the GPS antenna receiver is connected to the MPEG main control chip through a USB2.0 high-speed interface with OTG function; the GPS antenna receiver is used to receive GPS positioning longitude and latitude information of satellites.
[0053] The hard disk of this system is equipped with an electronic map, and the flash memory is equipped with an optimal routing algorithm. The GPS antenna receiver can receive the GPS positioning longitude and latitude information of five satellites, the error is not more than 10 meters, and then the software calculates the route and displays it on the 7-inch TFT LCD.
[0054] The system can track road information in real time. Wherever the car goes, the road map can calculate the information of the next intersection and guide the driver.
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