实验室温湿度及有害气体监控系统设计  

Design of the Monitoring System for Temperature,Humidity and Harmful Gases in Laboratory

作　　者：丁涛[1] 刘祥吉 

机构地区：[1]延安大学化学与化工学院,陕西延安716000

出　　处：《自动化仪表》2018年第2期37-40,共4页Process Automation Instrumentation

基　　金：陕西省教育厅自然科学基金资助项目(15JK1808);延安大学校级教改基金资助项目(YDJG2015-18)

摘　　要：随着科学技术的飞速发展,现代实验室对环境的要求越来越高。温湿度是影响试验数据准确性和试验设备正常运行的重要环境参数。但是,传统的温湿度监控系统一般采用台式机作为监控终端,只有在指定的地点和有专用网络设备支持的情况下,才能对目标环境进行监控,使得监控系统的应用范围和灵活性大大受限。在此背景下,设计了一种实验室温湿度及有害气体无线监控系统。以ESP8266为主控芯片、DHT21为温湿度复合传感器,对无线温湿度监控系统进行了软、硬件设计,使该系统具备温湿度实时测量、安卓应用程序(APP)远程监测和历史数据查询等功能。试验结果表明,该系统使用简单、数据准确、运行稳定,实现了对现场环境的无线远程和实时监控,提高了监控系统的应用范围和灵活性。无线监控技术对智慧农业中农产品生长监控、环境监控中排污监控及智能家居远程监控的研究具有参考意义。With the rapid development of science and technology,the requirement for environment is higher and higher in modern laboratory,for example,temperature and humidity,by which the accuracy of experimental data and the normal operation of laboratory equipment may be affected.However,the traditional temperature and humidity monitoring system adopts the desktop as a general monitoring terminal,and requests specific place and dedicated network under the condition of equipment support ability to monitor the target environment.This greatly limits the application range and flexibility of the monitoring system.With above as the background,the hardware and software of a wireless monitoring system of temperature,humidity and harmful gases in lab have been designed.In this system,ESP8266 is used as the main control chip and DHT21 compound sensor is for temperature and humidity collection.The functions of system include the realtime measurement of temperature and humidity,Android application（APP） remote monitoring and historical data query,etc.The test results show that the system is simple to use,offers accurate data and stable operation.This system can realize wireless remote and realtime monitoring in the field,which improves the application scope and flexibility of the monitoring system.The wireless monitoring technology has reference significance for the monitoring for growth of agricultural products,pollution in environmental protection,and intelligent household remote control in the future.

关 键 词：远程监控系统 单片机 传感器 温湿度采集 实时显示 有害气体监测 

分 类 号：TH86[机械工程—仪器科学与技术] TP27[机械工程—精密仪器及机械]