基于K型热电偶的多通道温度采集系统设计  

Design of Multichannel Temperature Acquisition System Based on Type-K Thermocouple

作　　者：赵世峰[1] 何皙健[2] 

机构地区：[1]西安工业大学人工智能与仿真研究所,陕西西安710032 [2]西北大学城市与环境学院,陕西西安710127

出　　处：《软件导刊》2017年第11期108-109,113,共3页Software Guide

基　　金：西安工业大学校长科研基金项目(XAGDXJJ14014)

摘　　要：为研究多通道温度采集,设计了一种基于K型热电偶的多通道温度采集系统。系统采用基于Modbus-RTU通信协议的DFM206系列6通道隔离输入测量模块,采集多路K型热电偶信号,上位机使用libmodbus库实现与DFM206模块的通信,系统软件采用Qt进行开发,利用QcustomPlot实现温度曲线显示,温度数据保存于MySQL数据库中。试验结果表明,该系统精度高、可靠性好,具有较强的扩展性与可移植性,可广泛应用于各种工业温度采集场合。It researches multichannel temperature acquisition system and a multichannel temperature acquisition system based on type-K thermocouple was designed.The system uses DFM206 6-channel measurement module to acquire multichannel type-K thermocouple signals.The master machine controls the DFM206 module through Modbus-RTU communication protocol,takes libmodbus library to implement the communication according to the Modbus protocol.The software is developed by Qt,the temperature curve is drawn by QcustomPlot and MySQL is used to save the data.The results show that the system has characters of high accuracy,high stability and strong portability and scalability which can be widely used in temperature acquisition of industrial production.

关 键 词：热电偶 DFM206模块 MODBUS协议 QcustomPlot 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]