With the rapid development of economy of our country,more and more people have owed their cars, at the same time, more and more accidents occur because of parking and reversing.the car reserving aid system which can help drivers parking is invented.
At the core of the design using AT89C2051 low-cost, high accuracy, Micro figures show that the ultrasonic range finder hardware and software design methods. Modular design of the whole circuit from the main program, pre subroutine fired subroutine receive subroutine. display subroutine modules form. SCM comprehensive analysis of the probe signal processing, and the ultrasonic range finder function. On the basis of the overall system design, hardware and software by the end of each module.
The research has led to the discovery that the software and hardware designing is justified, the anti-disturbance competence is powerful and the real-time capability is satisfactory and by extension and upgrade, this system can resolve the problem of the car availably, building construction the position of the workplace and some industries spot supervision.
