[Auto repair knowledge]Reversing radar probe

Reversing radarThe number of probes is at least two, generally 2-4. The probe is ultrasoundsensorThe common name.It uses the principle of ultrasound and is installed at the rear of the carbumperThe upper probe sends ultrasonic waves to the obstacle and reflects it back to the probe to calculate the distance between the vehicle body and the obstacle. The included angle of the normal test range of a probe is 90 degrees, so in order to provide detection behind the entire rear of the vehicle, at least two probes are required. Since the included angle of the test range of each probe is fixed at 90 degrees, a blind angle will naturally occur. For safety reasons, of course, install more probes to learn more. For example, when the probe is installed on the side, when the vehicle turns, the distance between the vehicle and the obstacles on both sides will also be displayed. In fact, to this day, the reversing radar is not only to provide reversing safety information, but also to provide safety information on the distance between the two sides of the vehicle while driving. From an economical and practical point of view, it is generally advisable to install 4 probes at the rear of the car. If conditions permit, 2 probes can be installed at the front of the car.

There are two ways to connect the probe to the data processing device, wired and wireless. Wireless can not damage the interior of the car. It is easy to install and use, but the price is higher and it is easy to be disturbed. The product quality of the probe is directly related to the role that the reversing radar should play. It includes: the sensitivity of the product, whether there is a blind zone, and whether the product is working properly.

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