Bus Air-conditioning Intelligent Control Technology And Systems Development

With the improving of living standard in our country and the developing of modern high-tech, automobile industry and electronic technique, comfortable environment is more and more needed by people for going out by bus, and anterior air conditioner system in bus has shown all kinds of drawbacks, such as complex in operation, low accuracy and so on, it is very urgent that automatic and intelligent air conditioner system should be realized. To satisfy this kind of practical demand, this Master' s degree paper expatiates the basic theories and knowledge in designing controller for an air conditioner in bus; Details are provided at some key points.Single chip AT89C52 is used as a core component in this system, fuzzy control technique is employed in temperature controlling in the system. With the help of software programmed in C51 language, the system drives performer to execute relevant work after disposing and calculating each analog signal, realizing controlling to air conditioner in bus, making passengers satisfied with air quality in bus. The system not only has the function of ventilation, warming, refrigeration, humidifying, but also can display the running status and the temperature in bus. Making.a little modification to software of the system, it can be used to all kinds of big, middle bus.The field experiment of the system indicates that the whole design is feasible and reliable, and the presumed functions have been conducted successfully.