基于LabVIEW的温度测控系统设计

在一些功能比较复杂的数据采集系统中,通常以PC为上位机,单片机为下位机,由单片机完成数据的采集及对装置的控制,由上位机完成各种复杂的数据处理及对单片机的控制。本文利用LabVIEW图形化编程语言开发设计人机交互界面,STC89C51单片机通过I/O口读取DS18B20的温度数据,上位机通过下位机的全双工串口进行实时通信,完成温度的显示、报警、制表及打印等功能。测试结果表明,该系统性能稳定,界面形象逼真,数据准确、实时性好,具有一定的推广价值。

Design of temperatrue measurement and control system based on LabVIEW

For some complex data acquisition systems, usually used PC as upper machine and MCU as lower machine,the MCU complete the data collection and the device control,the PC complete a variety of complex data processing and control the MCU。In this paper,the human-computer interaction interface is programmed by graphic program language LabVIEW,STC89C51 MCU read DS18B20’s temperature data through the I/O port,the upper machine real-time communicat and complete temperature display, alarm, tabulation and printing functions through lower machine’s full-duplex serial port.Based on the test,the system is stable, the interface is realistic, the data is accurate and real-time, the system has some promotional value.