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 测控技术与仪器毕业设计论文-基于labview粮仓温湿度远程监控设计.docx

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毕业设计(论文)基于labview粮仓温湿度远程监控设计院 别自动化学院专业名称 测控技术与仪器班级学号0821101学生姓名唐义康指导教师刘琳2015年5月20日基于labview的温湿度检测系统摘 要民以食为天,粮食成为人们每天的必需品。每天会消耗掉大量的粮食,因此必须存储大量的粮食,粮食的保存良好与否和温湿度息息相关。那么问题来了,怎样才能监测粮仓的温湿度情况。美国NI公司研制开发的labview虚拟仪器具有强大的数据处理能力,拥有良好的人机设计界面,能够充分发挥计算机的功能,可以创造出功能强大的仪器,实现普通仪器所不能实现的功能,并可以实时监测。要保护好粮食不腐坏,温度和湿度是两个至关重要的参数,因此有必要对其进行时时的检测,此次设计借助虚拟仪器技术的易开发、灵活性强和使用方便等优点,将其和传统单片机测量系统结合起来,基于labview 软件设计出可以采集温度和湿度信号的温湿度检测系统,具有温湿度数据显示、波形显示、温湿度越限报警、数据存储等功能,并且操作简单。本系统采用温湿度传感器,将所采集到的温度和湿度,经过变换,转换成电压信号送入单片机下位机中,再通过串口接入计算机中,将采集的数据存储在access数据库中,在计算机软件的支持下,完成自动采集、实时监测、越限报警、自动存储等功能。关键词:labview,温湿度,检测the detection system Based on labview of the temperature and humidity Author:Li ao Xinkai Tutor:Song AijuanAbstractWith the continuous development of science and technology, measurement and control technology increasingly automation, intelligent, digital and network. The closely combining of instrument and computer is currently an important direction,The labview which United States NI company research and develop has the powerful data processing ability, have a good man-machine interface design, can give full play to the function of the computer, can create a powerful instrument, realize functions that common instrument can’t.With the gradual development of the meteorological service, meteorological data measurement also into automation. Temperature and humidity are two important environmental parameter, directly affect the food store, Therefore it is necessary to carry out their every test, This design by means of the virtual instrument technology is easy development, flexibility and easy to use, and we combine it and the traditional measurement . Based on labview software designed temperature and humidity detection system With temperature and humidity data display, waveform display, temperature and humidity transfinite alarm, and other functions, which can acquisite multichannel temperature signal and multiple humidity signal and is easy to operate.The system which uses the temperature and humidi
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