基于LabVIEW的多功能温度测控系统设计

Multi-functional Temperature Measurement and Control System Based on LabVIEW

针对医院精密仪器室温度测控系统中遇到的设备控温不精确,结构和操作复杂,功能不全等问题,设计了一种以LabVIEW为开发平台的新型温度测控系统。该系统采用DS18B20为温度传感器,将采集到的温度信号由STC89C52RC单片机处理后通过串口送到计算机,对温度数据进行实时显示、存储、报警与控制,并能够通过GSM模块把报警信息发到管理人员的手机,且管理人员可发送相应的短信指令去控制继电器开启制冷或加热设备。此外,管理人员还可以通过网页浏览器访问WEB服务器发布的前面板页面,实现远程监控。该系统具有硬件电路简单、控温精确、功能全面等特点,能够完全满足实际应用要求。

For the problems of temperature control inaccuracy,complex structure and operations,and insufficiency in the precision instrument room of hospital,Using LabVIEW software as the development platform to design a new temperature control system,and using temperature sensor DS18B20 to acquire the temperature information.Will be collected by the STC89C52RC microcontroller temperature signal sent to the computer through the serial port.the temperature data was displayed and stored.As temperature was over the one set in advanced,the system will give an alarm and by controlling the relay action,the temperture will restored to the setting range,and the GSM module sends the alarm message to the managers'mobile phone,and the manager can send a message instruction to control the relay to turn on the cooling or heating equipment.In addition,managers can also access the WEB server`s front panel pages via a web browser,and then realize the remote monitoring.The system has the characteristics of simple hardware circuit,accuracy control of temperature and full-featured features,and meet requirement of parctical application.