32-bit systems based on multimedia car navigation system

Background output is provided to the rear passengers, mainly to provide multimedia content for the back passengers enjoy.

In general, the main speakers in the car is the front desk inside the sound, it can be the background, the background can have a separate sound output.

4.7.2.DVD Video

4.7.3.DVD changer video

4.7.4. Rear view camera video

4.7.5. Analog TV video

4.7.6. Digital TV Video

4.7.7. Auxiliary video input

4.8. How to communicate with the ECU

In the advanced system design, car audio main ECU can communicate with the vehicle, the vehicle operation and driving some of the key parameters displayed in the display.

32-bit system, you can easily through a variety of protocols, to communicate with the ECU, however, that communication design is unique in nature, with the appearance of the same, in most cases belong to some specific models.

4.9. Steering wheel controller

Steering wheel controller, so the driver can easily control the device, such a design if it is handled through the ECU, we have to be achieved through the ECU, most of the design of the steering wheel is directly connected to the vehicle equipment, we need to model the target development and implementation.

4.10. Automatic brightness control

Application in automotive display products, there should be a performance of the automatic brightness control device to meet the needs of a rapidly changing lighting conditions, and we designed the system to an optical sensor system based on external illumination changes, automatically Adjust the monitor's display indicators.

5. System Design

5.1. The system block diagram

5.2. You can add or delete the system function

5.2.1. No disc system

FLASH users in many Reai there, the disc is already a redundant and cumbersome parts, our design can be easily reduced to a non-disc system, through the FL