Based On Ultrasonic Automatic Parking Assist System

Automatic parking system is the system which detects environmental information to look for Parking lot, and drives vehicle to the Parking lot automatically by controlling the steering angle and speed of vehicle. Compared with that accidents happen frequently when parking vehicles, and traditional radar for backing vehicles is not intelligent enough, automatic parking system improves the intelligence and safety of vehicles, decreases the difficulty of driving cars for fresh drivers, and does foundation work for automatic driving in the future.An ultrasonic sensor system has been designed and realized in this paper, which is mainly used to get the parking information of the environment in automatic parking system. Based on the characters of ultrasonic echoed signals, the circuit and software have been designed, with which the sensitivity and the stability of the ultrasonic sensor are enhanced. The system can improve the ability of auto-driving system in getting parking information of the environment, is an important part of the auto-active security and can be widely used.