介绍的温度控制系统是以AT89C51为核心组建的。该系统能够对养鸡场内的温度进行检测采集，利用DS18B20数字温度传感器将养鸡场内的温度以数字信号，传送给单片机进行处理，最后由单片机去控制LCD液晶显示器，显示温室养鸡场内的实际温度，同时通过比较，对养鸡场内的温度是否超过温度设定值进行分析。根据分析结果对养鸡场内温度控制设施进行开关控制，当温控开关打开时，若测得环境温度大于设定温度，则继电器吸合，启动压缩机工作；若测得环境温度小于设定温度，则继电器释放，压缩机停止工作。从而达到控制养鸡场内温度的目的。-The temperature control system is the core of AT89C51.. The system is capable of temperature on the farm for detection and acquisition, using DS18B20 digital temperature sensor, the chicken field in temperature to digital signal and transmitted to the microcontroller processing, finally by single-chip microcomputer to control the LCD liquid crystal display, greenhouse chickens on the floor of the actual temperature display, at the same time, through compared to chicken inside temperature if the temperature exceeds the set value were analyzed. According to the results of the analysis of chicken inside temperature control facilities to control switch, when the thermostat switch is open. If the measured temperature is greater than the set temperature, relay, start the compressor work　if the measured environment temperature is lower than the set temperature, the relay release compression machine stop working. So as to control the temperature of chicken farm..