基于51单片机的温度采集系统设计

Design of the Temperature Acquisition System Based on 51 Single Chip Microcomputer

论文利用AT89C51单片机和DS18B20温度传感器设计了一款能够实现对环境温度进行实时采集并当环境温度超过设定值时进行自动报警的温度采集系统。论文使用Proteus对电路进行仿真,得到温度采集系统的仿真电路图,按照电路图焊接完成硬件电路,并对硬件电路进行调试。调试结果表明:该系统能实时显示环境温度,温度采集范围为-55^+120℃,温度测量精度可以达到0.1℃;可以根据用户需求设定温度上下限,当环境温度超出设定值时,系统能进行声光报警。该温度采集系统性能可靠、成本低廉、使用便捷。

This paper uses AT89C51 single chip microcomputer and DS18B20 temperature sensor to design a temperature acquisition system which can realize real-time acquisition of environmental temperature and alarm automatically when the environmental temperature exceeds the set value.The paper uses Proteus to simulate the circuit,obtains the simulation circuit diagram of the temperature acquisition system,welds and completes the hardware circuit according to the circuit diagram and debugs the hardware circuit.The debugging results show that:the system can display the environmental temperature in real-time,its temperature acquisition range is from-55℃to+120℃,its temperature measurement accuracy can reach 0.1℃.The system can set the upper and lower limits of temperature according to the user's needs.When the environmental temperature exceeds the set value,the system can give sound and light alarm.The temperature acquisition system has reliable performance,low cost and convenient use.