What is it that the reversing radar keeps ringing as soon as it gets cold?

1, whether the installation position of the probe is too tight, and the probe does not work normally when it is cold.

Solution: The probe becomes worse at low temperature, so the probe with good characteristics must be replaced. You can go to the 4s shop and let the professionals change the probe.

2. Check whether the probe is stuck with ice, snow or mud.

Working principle of the radar: When reversing, the reversing radar uses the ultrasonic principle, and the probe mounted on the bumper at the rear of the car emits ultrasonic waves, which reflect the sound waves after hitting the obstacles, thus calculating the actual distance between the car body and the obstacles, and then prompting the driver to make parking or reversing easier and safer.

Extended data:

Function and composition of reversing radar;

1. The reversing radar is mainly composed of ultrasonic sensor, controller, display or buzzer.

1. Ultrasonic sensor: The main function is to send and receive ultrasonic signals, and then input the signals to the upper computer and display them through the display device.

2. Controller: processing signals and calculating the distance and orientation between the car body and obstacles.

3. Display or buzzer: When the sensor detects that the distance between the car and the obstacle reaches a dangerous distance, the system will give an alarm through the display and buzzer to remind the driver.

Second, function

1, accurately measure the distance from the rear of the car to the nearest obstacle;

2. When reversing to the limit distance, it can give a quick alarm to remind the driver to pay attention to braking;

3. Voice warning sounds can be repeatedly issued to remind pedestrians to pay attention.

Baidu encyclopedia-reversing radar