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温度检测设备是电子技术常用的设备之一,广泛的应用于工业、农业、医疗等领域。本设计由STC89C52单片机系统,DS18B20温度采集电路,LCD显示电路,声光报警电路和继电器控制电路组成。研究思路是在程序中设定一个报警温度,该温度可以通过两个按键进行调整,采用DS18B20数字温度传感器采集温度并送入STC89C52单片机,处理后在LCD上显示,同时比较设定温度,高于设定温度值进行声光报警同时控制继电器通断。论文中对STC89C52单片机,ISP下载和DS18B20温度传感器进行了较为详细的介绍。
Temperature detection equipment is one of the commonly used electronic devices, widely used in industrial, agricultural, medical and other fields. The design by the STC89C52 SCM system, DS18B20 temperature acquisition circuit, LCD display circuit, sound and light alarm circuit and relay control circuit. The research idea is to set an alarm temperature in the program, the temperature can be adjusted by two keys, using the DS18B20 digital temperature sensor to collect temperature and into the STC89C52 microcontroller, after processing on the LCD display, compare the set temperature, higher than Set the temperature value for sound and light alarm control relay on and off. The paper describes STC89C52 microcontroller, ISP download and DS18B20 temperature sensor in more detail.