parking sensor (PDC, Parking Distance Control) full name “reversing anti radar”, also known as “parking assist apparatus”, is a safety car when parking assistance device or reverse, by the ultrasonic sensor (commonly known as probe), and a display controller (or buzzer) and other components. The situation in reverse, helping drivers “see” the invisible things rearview mirror, or to sound more intuitive display to inform the driver of obstacles around, lifting the driver parking, reversing around, visit and start the vehicle distress caused, and to help the driver to remove dead and blurred vision sight defects and improve driving safety.
1. reversing radar noun
parking sensor (PDC, Parking Distance Control) full name “reversing anti radar”, also known as “parking assist device”, a car parking or safety devices when reversing aid, by the ultrasonic sensor (commonly known as a probe), and a display controller (or buzzer) and other components. In reverse, helping drivers “see” the invisible things rearview mirror to soundTone or a more intuitive display driver informed of the situation around obstacles, lifting the driver’s parking, all around to visit the distress caused when reversing and start the vehicle, and helps the driver to remove dead and blurred vision sight defects, improve driving safety.
there are some reversing radar blind spots, including obstacle too low (below the center of the probe 10 ~ 15cm below the obstacle), too small an obstacle (e.g. isolated pile, the oblique wire rope) is also there Goukan.
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2. Reversing radar works
works
PDC system is usually in the rear bumper or front and rear bumpers of the car set up radar detectors when used to detect obstacles in front and rear, helps the driver “see” around the side of the obstacle, or its distance from the car park, in addition to this device more convenient parking outside the body can be protected from scratching.
PDC is based on ultrasonic sensors to detect the distance from the car nearest obstacle, and issued a siren to warn the driver. Siren sound is usually controlled in two stages, when the distance of the vehicle reaches a certain distance from the start to detect siren sounds a siren starts singing at a high frequency, and when reaching a certain distance closer , then changed to a continuous siren siren to inform the driver. PDC advantage is that the driver can obtain information about the obstacle aurallyInformation, or it’s away from the car glass. PDC system is mainly to assist parking, so when it reaches or exceeds a certain speed the system will be turned off. .
3 optional reversing radar Notes
● quality: as a reversing radar automotive supplies, the most important It is to see whether its quality, better service quality products offered, promised a longer warranty period.
● function: the function to distinguish, can be divided into LCK reversing radar distance display, voice prompt alarm, position indication, voice prompts, automatic detection probe, a fully functional radar reversing these functions should have .
● Performance: The performance mainly from the detection range, accuracy, stability, and display the captured target speed research. The detection range of at least 0.4 meters to 1.5 meters between; accuracy mainly depends on two aspects, first look at the display resolution, typically 10 cm, 1 cm to achieve good, followed by detection errors see, i.e., the distance between the display and the actual distance error detection errors good product less than 3 cm; refers to show stability under a bad surface reflected by an obstacle, the ability to capture and display a stable distance between obstacles; capture reflects reversing radar target speed moving objects capture capability. Reversing radar performance requirements are: measured accurately measured steady, rapid capture a wide range and speed.
● appearance of the process: the interior and exterior member of the vehicle as required and the overall structure of an automobile, the color coordination.
4. After the reversing radar Explanation
is safe reversing radar vehicle parking assist device or when reversing, by the ultrasonic sensor (commonly known as a probe), and a display controller (or buzzer) and other parts composition. Or can be displayed in a more intuitive voice informed of the situation of obstacles around the driver, the driver lifted parking, all around to visit the distress caused when reversing and start the vehicle, and helps the driver to remove dead and blurred vision of defects and improve driving safety.
after 
reversing radar probe mounted in the rear bumper, the probe radiation at an angle of approximately 45 degrees, up and down search targets. The greatest advantage is to be able to explore those obstacles below the bumper and the driver is difficult to see from the rear window, and the police, such as flower beds, children playing after squatting on the car and so on.
When the shift lever engaged reverse gear, reversing radar automatically start working when the probe detects objects behind a warning buzzer, when the vehicle continues to reverse, the frequency of an alarm sound will be gradually accelerated, and finally become sounding tone.