基于LabVIEW与单片机的温度采集监控系统设计

利用温度传感器DS18B20与AT89C51单片机构建温度采集监控硬件系统,上位机采用LabVIEW平台开发应用程序,通过串口通信实现温度采集系统与上位机之间的数据传输与通信;系统可以实现温度实时数据的采集、显示、报警、存储与回放;当实际温度超过设定范围时,输出信号进行加热或通风操作;温度检测系统在电热水壶周围进行温度检测时的界面,温度分别达到了47.5℃及65.3℃;表明,该系统可以有效地监测温室大棚及工厂环境中的实时温度及其变化,具有较强的可靠性与实用性。

A temperature measurement and control system was proposed with digital thermometer DS18 B20 and AT89 C51 as hardware and LabVIEW as software designing platform.Communication between AT89 C51 and LabVIEW was completed by serial port.This system can acquire real-time signal of temperature,process,display,storage and control temperature.This system can give an alarm when temperature exceed the limit.In this paper,the interface of the temperature detection system around the electric kettle is tested,and the temperature reaches 47.5 ℃ and 65.3 ℃respectively.The experimental results indicate the system can reflects the temperature and its variation rate in greenhouses and workshop,which has high reliability and quality.

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