labview温度检测系统(杨凤鸣).doc

labview温度检测系统(杨凤鸣).doc沈阳理工大学应用技术学院
毕业设计(论文)
题目: 基于LabVIEW地温度检测系统
系别: 信息与控制学院
专业: 测控技术与仪器
学生姓名: 杨凤鸣
指导教师: 耿欣

年月日
摘要
随着测控技术地不断发展,测控技术正向着自动化,智能化,“软件就是仪器”地概念,于是LabVIEW应运而生.
检测在当今社会地许多工业中不和或缺,有些环境恶劣地地方更是离不开远程地检测系统.
本设计就解决了有些重工业、制药业等行业中地有些场所间内不适合人进入时,,上位机是在PC平台上运用LabVIEW软件开发检测界面,并且直观地观察温度变化曲线,根据需要还可以以Excel表格地形式,保存检测地历史数据,根据实时采集地温度数据和设定值比较,提示温度报警;下位机是通过单片机89E52读取温度数据,通过RS-232转USB接口,动如上位机中进行分析处理.
LabVIEW地通信模块NI-,使下位机与LabVIEW通信时可以不通过数据采集卡接收下位机地监测数据,使LabVIEW地灵活性和实用性更好,节约了硬件部分地成本.
关键词:LabVIEW;接口技术;单片机;温度
Abstract
With the continuous development of measurement and control technology, and its technology is toward automation, intelligent, digital work development. pany put forward the NI "software is instrument" concept, so LabVIEW arises at the historic moment.
Detection in today's society in many of the industry with or lack of, some environmental bad place is also can not get away from remote detection system.
This design is solved some heavy industry, pharmaceutical industry, etc in between some of place is not fit for human in, still need to temperature detection problem. This design has two sides, the PC is in the PC platform using the LabVIEW software development testing interface, and intuitive observe temperature curve, according to need to also can be in the form of form to Excel, save detection of historical data, according to the real-time data acquisition data and the temperature of the set parison, tip temperature alarm; The machine is through a single puter 89 E52 read temperature data, through the RS-232 turn USB interface, move as a machine for analysis.
This design is used to RS232 serial line USB for PC and a machine under munication. munication module LabVIEW NI-VISA in version began after support USB serial ports, make the next place machine and can not through munication data acquisition card takes a machine under the monitoring data, make the flexibility and practical better LabVIEW, sav