Reversing radar blind spot is less than 50 cm obstacles easily be overlooked

Recently, some users OBD2 Code Scanner have reported that, obviously radar reversing into place to remind still some distance away, but the vehicle crashed into a concrete barrier. Sent to the 4S shop maintenance, 4S shops engineers say the concrete barrier in the blind spot of the reversing radar, so do not remind. Winter car seat which

Xiao Bian found the 4S shop technician Wang Gang strong master, Master Wang said, reversing radar is generally composed of three parts: ultrasonic sensors (commonly known as probe), controls and displays. Car-mounted probe is generally 4-6, 4 rear, need and then loaded the front two. The working principle of the radar mimic ultrasonic positioning principle of bat flight. Release ultrasonic probe mounted at the rear of the vehicle, rear obstacle is encountered, the resulting echo signals. The probe received echo signal, feedback to the controller for data processing by the display reminders. The probe is generally able to detect obstacles within 1.5 m or 2 m.

Know works, you auto diagnostic tool understand why the radar will be blind. From the side of the car, the ultrasonic wave emitted by the radar probe in a straight line is not horizontal, but rather a certain angle with the ground, so in a position close to the rear to form a right-angled triangle blind. The higher the body or the probe installed the higher the larger the blind spot. Master Wang said, the general probe mounting location away from the ground about 50 centimeters, less than 50 cm obstacles in the car it is possible to probe ignored, and the closer from the probe, the more easily overlooked.

Master Wang to remind you not to place undue reliance on reversing reversing radar, especially beginners, reversing, it is best to get off and look at the rear there are no X431 ダイアガン obstructions.