Car parking sensor system's features demon

 The Parking sensor system will begin to detect the obstacle behind the car's rear part when ACC is on and  Reverse gear is activated,the system will have a self-detecting of sensor heads' working to show if all sensor heads work properly.

There are 3 or 5 stages of detecting range,upon the regional requirement and customer's liking

Range                                Beeps                   Led color

1),0-0.3m (0.1-1 feet)    didi..............         Green+Yellow+Red

2),0.4-0.6m (1-2 feet)    didi...didi......         Green+Yellow

3),0.7-0.9m (2-3 feet)    didi...didi......          Green+Yellow

4),1.0-1.5m (3-5 feet)    didi...didi......          Green

5),1.5-2.5m (5-8feet)      Silence                   Green

6),>2.5 m  ( >8 feet)        Silence                   Blank

When there is obstacle behind the car when reversing,the buzzer shall warn to remind,and the led shall flash the correct light to indicate the status,when the rane is 0-0.4 meters,it is dangerous range.the beeper will contstantly beep to warning the driver.