Vehicular audiovisual control system based on DSP technology

Abstract

The invention discloses a vehicular audiovisual control system based on a DSP technology. The vehicular audiovisual control system comprises a reception control chip, a radio module, an audio play control chip, a USB module, an IPOD module, an optical disc module, and a DSP control module; the vehicular audiovisual control system adopts an LC786960 chip which is a combination of multi-functions, such as optical disc decoding, USB decoding, and IPOD authentication, optical disc play, USB flash disk play, MP3 / MP4 play, and IPOD play functions are achieved, the using number of chips is reduced, and hardware cost is lowered; and a layered development method is adopted, an independent DSP control module is responsible for exchanging data with the LC786960 chip, and the USB module and the optical disc module only need to meet user-customized operating requirements. The development difficulty of the modules is reduced, the stability of the system is increased, and the changing range of the system is reduced when user customization is changed, so that the system has a good continuity.

Description

technical field [0001] The invention belongs to the technical field of vehicle systems, and relates to a vehicle video and audio control system, in particular to a vehicle video and video control system based on DSP technology. Background technique [0002] The main function of the car audio-visual system is to play the sound source, which is equivalent to the DVD player of the home theater. In order to be more suitable for the small space in the car, most of the car audio-visual systems are dedicated to the car. In addition to playing DVDs, inserting U disks, SD cards, etc., you can also Insert the navigation card for path simulation navigation, and there are richer entertainment games. [0003] The car head unit is the core part of the car audio-visual system. Many car head units on the market use independent CD decoder chips and USB decoder chips. In the process of system development, these two modules need to be independently developed, which undoubtedly increases the am...

AI Technical Summary

Problems solved by technology

[0003] The car head unit is the core part of the car audio-visual system. Many car head units on the market use independent CD decoder chips and USB decoder chips. In the process of system development, these two modules need to be independently developed, which undoubtedly increases the amount of development.

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