How the reversing radar works[汽车修理知识]

Reversing radarYescarThe safety assist device when parking or reversing can inform the driver of obstacles around by sound or a more intuitive display, which relieves the driver’s troubles caused by the driver’s parking, reversing and starting the vehicle’s front, rear, left, and right visits, and helps The driver eliminates the defects of blind spots and blurred vision, and improves driving safety.
principle:
The working principle of the PDC system is that it is usually behind the carbumperOr the front and rear bumpers are equipped with radar detectors to detect obstacles in the front and rear to help the driver "see" the obstacles in the front and rear, or the distance to other cars when parking. This device is not only convenient for parking, but also Protect the body from scratches. PDC uses an ultrasonic sensor to detect the distance of the obstacle closest to the car and emit a siren to warn the driver. The control of the siren sound is usually divided into two stages. When the distance of the vehicle reaches a certain starting detection distance, the siren sound starts to sound with a certain high-frequency siren sound, and when the vehicle travels closer to a certain distance When the time, the siren sound is changed to a continuous siren sound to inform the driver. The advantage of PDC is that the driver can use hearing to obtain information about obstacles, or the distance of other cars. The PDC system mainly assists parking, so the system function will be turned off when a certain speed is reached or exceeded.

Now new cars have begun to use the digital no-blind spot PDC reversing radar system. For example, the BOWON reversing radar visual imaging system, which was launched shortly this year, uses this digitalsensorDesign to achieve truly no blind spot detection, sound and image (rearview mirror-Type display) double warning.The working principle of the digital no-blind spot PDC reversing radar is that when reverse gear is engaged, the PDC system is automatically activated. Four ultrasonic waves are embedded in the rear bumper of the car.sensorStart detecting obstacles behind. When the distance from the obstacle is 1.5 meters, the alarm system will emit a "di-di" sound. As the obstacle approaches, the frequency of the "di-di" sound increases. When the distance between the car and the obstacle is less than 0.3 meters, the "di-di" sound "Will be converted into a continuous tone. The high-end reversing visual radar is also equipped with a human voice alarm. The visualized BOWON reversing radar truly embodies the characteristics of humanity.
Source: Blog post to create a new realm of car

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