How does a parking/backup sensor system work?
The CPU in the main control unit of the Parking/Backup Sensor System determines obstacle distance by measuring the time needed for the ultrasonic wave emitted by a sensor to reach an obstacle and for the sensor to receive the ultrasonic wave reflected from the obstacle. Given the speed of the ultrasonic wave, the CPU can then calculate the distance between the sensor and the obstacle. That is also why some people call Parking Sensor System as Parking Radar because of the similarity in determining obstacle distance. Our Parking/Backup Sensor system consists of 4 – 8 wide angle sensors – 2 or 4 covering the front of the vehicle (6 or 8 sensor systems only) and 4 covering the rear of the vehicle. The system will warn the driver both audibly and visually (models with display only) if there is an object behind or in front of the vehicle and how far the object is (models with display only). The main control unit, visual display, and the two or four front sensors are powered by +12V from igni
