Working principle:
Most reversing radars use the principle of ultrasonic ranging. When the driver is reversing, the gear is pushed to R gear. The system automatically emits ultrasonic waves from the probe installed in the rear of the car to the rear of the car. After encountering an obstacle, an echo signal is generated. After the controller controls and processes the echo signal, it determines the direction and distance of the obstacle.Finally, an image prompt is issued by the display or buzzer, so that the driver knows when reversing, making it easier and safer.
