Reversing radar, also known as parking assist system, or reversing computer warning system. It is a safety auxiliary device when parking or reversing a car. It consists of an ultrasonic sensor (commonly known as a probe), a controller and a display (or buzzer). It can inform the driver of the surrounding obstacles through sound or more intuitive display, relieve the driver of the trouble caused by looking forward, left, and right when parking, reversing, and starting the vehicle, and help the driver eliminate blind spots and blurred vision. defects to improve driving safety.
Most of the reversing radars on the market now use the principle of ultrasonic ranging. When reversing, the driver pushes the car's gear to R and starts the reversing radar. Under the control of the controller, the device is The probe on the rear bumper of the car sends out ultrasonic waves and generates an echo signal when it encounters an obstacle. After the sensor receives the echo signal, the controller performs data processing to calculate the distance between the car body and the obstacle and determine the obstacle. The position of the object is then displayed on the display and a warning signal is issued, so that the driver will not hit an obstacle when reversing. During the entire process, the driver can know the situation behind the car without looking back, making parking and reversing easier and safer.
Specifically, the working principle of the reversing radar is: first connect the power supply and turn it on. When the vehicle enters reverse gear, the detector host automatically enters the working state and the display band lights up. Then, use a special drill to make holes in the bumper and install the detectors into the holes respectively. According to the car owner's reversing and parking habits, four probe detectors are installed at the rear or two on both sides of the car. Install the detector host in the appropriate position, clamp the monitor on the rearview mirror of the car, and start working normally.