Air conditioner already more and more family application, it is the household appliances popularized, having developed the old products for a lot of years, its function changes with each passing day especially, and it was its control system that played a key role to the improvement of its function. Every large air conditioner manufacturing enterprise has gone on much research too in this respect, the function is becoming better and approaching perfection day by day. The task of the microcomputer control system of the air conditioner is a order of passing 89C52 and according to the temperature of the room, the temperature of the indoor heat exchanger, the states of the temperature of the outdoor heat exchanger, compressor,etc. come to control the operation course of the air conditioner. Particularly, control compressor, outdoor fan, indoor fan, indoor wind direction electrical machinery, and will establish the temperature and actual temperature of room and in charge of the number to show. In addition, owe, press and protect the compressor in the systems soft ware, its state can be pointed out through LED. Refrigeration, sleep and automatic function subprogram module of the software system, the main function is according to the temperature of the room and difference of establishing temperature, and consider other conditions synthetically, then carry on intellectual control to the operation states of the compressor and internal and external fan of room. Meanwhile, protected dealing with in every module. So this system has refrigeration, sleep, 3 kinds of automatic work patterns, and the adjustable indoor wind speed,etc. control the function; While starting the machine regularly, can do intelligence and judge, adjust the time of starting the machine regularly automatically according to the temperature of the room, it is too cold or too hot while avoiding starting the machine; Show at the same time in establishing two kinds of temperature value of temperature and room temperature in addition, the perfection system protects the function.
The air conditioner control system of the microcomputer is formed by six parts mainly: Temperature measuring, temperature control, compressor, indoor and outdoor fan and compressor control circuit, the control of the electrical machinery of indoor wind direction, temperature points out the circuit, walk into the control circuit of electrical machinery, protect the circuit.
Key word: One-chip computer compressor Refrigeration protecting