In order to reduce the collision accidents when the car is reversing, a design scheme of ultrasonic ranging reversing radar based on single chip microcomputer is proposed. According to the principle of ultrasonic ranging, the design adopts AT89S52 single chip microcomputer as the control core, designs ultrasonic ranging reversing radar, and analyzes the measurement distance error. The measurement distance is 0.1~5.0 m, and its accuracy can reach 1 cm after correction. The design has simple structure, reliable operation, good measurement accuracy and sensitivity.
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