第1个回答 2011-06-11
This design is a kind of the temperature control system, automatic fan is to make the common electric fan of intelligent and, at the same time, the more sensitive temperature testing system and display function, it is STC89C52RC single chip microcomputer as a control the core, the temperature sensor DS18B20 external environment temperature in data collection, and then through the microcontroller will analysis and treatment of data into to LCD monitor, LCD display shows out after temperature and drive circuit to drive the fan operation, also can set temperature limits, and can make the fan speed with the external environment of the change of the temperature automatic adjusting speed, to achieve "the high temperature, wind, low temperature, wind weak" characteristic, the system has stable performance, control accuracy.