Design Of Car Reversing AidSystem

The thesis introduces a kind of Car Reversing Aid-System in detail. The system adopted the technology of computer controll and Ultrasonic Distance-Measurement based on the currently Car Reversing Aid-System.The system alarmed in time through displaying the distances between obstacles and cars. It soluted the puzzle poblem because the drivers looked around through the mirrors when they stopped or started the vehicle. The system would greatly solve the difficulties and meanwhile improve the driving safety.In this thesis analysis in theory, design of electronic circuit and experimental investigation on real time simulation system are employed to carry out the research. It realized the design of hardware and software. According to the paper, the fuzzy control theory is introduced and the simulation is developed in the system.The thesis mainly analyzed deeply the research on the design of Car Reversing Aid-System. Firstly, according to the latest researches in domestic and foreign countries, the system consisted of the Distance-Measurement Module, Control Module and Display or Alarm Module.The paper discussed the scheme of three module and selected the best system scheme in the paper. Secondly, it presented the theory and characters of Ultrasonic Distance-Measurement and analyzed in detail design of the hardware and software based on the AT89S52 microcontroller. Thirdly, the fuzzy control algorithm is proposed, the simulation is introduced into the system. At last, through the experiment and error analysis, it proved the stability of the system.To monitor its reliability, imitations of main cases of the system have been carried out and stable instructions of strategic system have already been received, which verify its efficiency and feasibility.