Abstract

In view of obstacle avoidance based on static ultrasonic wave sensor when the low sensitivity, slow response and low obstacle avoidance rate defect exists in the intelligent cars. An omnidirectional intelligent obstacle avoidance system was designed to control the ultrasonic sensor rotating for measuring distance. PWM drive servo actuators were used in this system to control the rotation measurement of ultrasonic sensor. Through sorting and filtering the sampled data, and then determine the optimal path, which can achieve a full range of autonomous obstacle avoidance. The experimental results show that the designed system can effectively improve the speed, sensitivity and obstacle avoidance success rate of autonomous obstacle avoidance.

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