The paper introduces the temperature control system design and realization of hardware and software. For mobile room temperature is very important. Domestic mobile room most now is not on duty for 24 hours, and so using search mode, so the temperature detection alarm system is very important. This paper introduces a design based on AT89C51 temperature detection and alarm system. The system will be a temperature sensor DS18B20 and connect in a port, and collect the temperature of the mobile room for timing.Through installs the temperature sensor in the room, collecting the temperature in the room every area, providing key position real-time temperature of the mobile room. Then will value the collected temperature and setting temperature.When the temperature setting beyond limit, through the buzzer alarm.
Keywords Temperature Control System, Temperature Sensor, AT89C51, Buzzer.
