How Many Types of Parking Sensors Are There?
3 Answers
Parking sensors can be divided into three types: adhesive type, drill-hole type, and hanging type. Below is a detailed introduction to parking sensors: Function: When reversing, they inform the driver of surrounding obstacles through sound or more intuitive displays, alleviating the difficulties caused by the driver's need to check all around when parking, reversing, or starting the vehicle. They also help eliminate blind spots and unclear vision, thereby improving driving safety. Blind Spots: Parking sensors also have certain blind spots, including obstacles that are too low (below 10~15cm from the center of the sensor), too thin (such as isolation poles or diagonal steel cables), and ditches.
There are several common types of reversing radars. The most common is the ultrasonic radar, which uses sound waves to detect obstacles behind the vehicle and emits an alarm sound, offering affordability and practicality. Another type is the millimeter-wave radar, which monitors distance via electromagnetic waves, providing high sensitivity and reliability but at a higher cost. There is also the camera system, which displays real-time reversing images after installation, offering intuitive collision prevention. Nowadays, many new cars are equipped with combined systems that integrate these sensors to improve accuracy. I think understanding these types is very helpful when choosing a car, especially for reducing the risk of scratches while parking.
My car is equipped with a parking sensor system, which mainly comes in three types. The most basic one is the audible alarm type that beeps when detecting objects; the more advanced version includes radar probes, sensitive enough to warn about even small obstacles; and there's also the camera-integrated system that displays images on the screen while reversing, which is super convenient. After using them for a while, I've realized that the type of sensor makes a big difference. For example, my wife's car doesn't have a camera, so she relies solely on sound when parking. I suggest considering these differences when buying a car—safety first.
