Bluetooth technology is an open global specification for wireless data and voice communication. It is a special short-range wireless technology connection based on low-cost short-range wireless connection to establish communication environment for fixed and mobile devices.
The car-mounted Bluetooth entertainment system mainly includes USB technology, audio decoding technology, Bluetooth technology, etc. The above technologies are integrated, and various audio and phone books stored in the U disk are played by using the microphone and stereo in the car, and the playing functions such as pop music are added. Connecting the network in the in-vehicle system based on CAN can realize the operation of the in-vehicle infotainment system, and at the same time reserve the expansibility for the system.