智能家居室内环境监测系统的研究与开发

发布时间：2018-07-06 18:35

本文选题：智能家居 + 环境监测　；参考：《吉林建筑大学》2017年硕士论文

【摘要】：伴随着世界经济的高速发展,人们的生活水平有了显著提高,但同时带来的特别是气体环境污染问题也越来越受到人们的重视,比如大气中的污染气体、室内装修时的甲醛气体、天然气中的CO等有毒有害气体时刻在威胁着人们的健康,室内环境温度、湿度等因素影响着家居的舒适度。其中智能家居室内环境监测系统作为智能家居的一个子系统是必不可少的,智能家居室内环境监测系统作为智能家居的前端监测端,为其他子系统的工作提供数据支持。目前为了能够实时监测智能家居室内环境有毒有害气体的参数,各种相关技术也在不断发展,但要想实现智能家居系统中的室内环境监测系统的普及仍然存在着众多的问题,主要原因包括成本高、监测精度不高、信号传输不稳定等。针对上述问题,本文设计了一套通过Wi-Fi技术实现的精准度高、成本低等诸多优点的室内环境监测系统,该系统的监测前端载有自主研制的甲醛传感器,该监测单元的灵敏度极高。其中信息的传输方式选用的是传输信息稳定、传输距离远的Wi-Fi技术,前端监测电路可以实时监测每个单元的温度、湿度、甲醛浓度、CO浓度等环境参数,只要有一台能连上Internet网络的PC机,就能实现PC机的远程实时观测被观测点的环境参数情况。本系统中的前端监测系统的硬件电路设计,根据设计的需求、功能实现要求、硬件成本、功耗和性能等诸多方面考虑,选定了微处理器芯片、模数转换芯片、甲醛传感器敏感材料、CO传感器探头、温湿度传感器等,并最终设定了MCU最小系统电路、甲醛监测模块电路、CO监测模块电路、温湿度监测模块电路、报警电路、显示电路、电源转换电路等。本系统中软件设计,在下位机硬件电路系统的基础上,设计了下位机软件系统,在下位机硬件和软件配合下,实现了下位机能够实时监测室内某单元空气环境参数的功能。并且通过Wi-Fi模块与控制程序的结合实现了下位机与上位机的信息通信。上位机Web界面的设计是基于SpringMVC3+Hibernate3开发软件和Oracle11g数据库进行开发实现的。该上位机系统具有信息存储、实时监测、查询等功能。最后通过对整体智能家居室内环境监测系统的测试,结果显示本文设计的监测系统运行平稳,满足设计要求。
[Abstract]:With the rapid development of the world economy, people's living standard has been improved significantly, but at the same time, the problem of gas environment pollution has been paid more and more attention, such as the polluted gas in the atmosphere. Formaldehyde gas in indoor decoration and CO in natural gas are threatening people's health at all times. Indoor temperature humidity and other factors affect the comfort of the home. As a subsystem of smart home, intelligent home indoor environment monitoring system is essential. As the front end of intelligent home, it provides data support for other subsystems. At present, in order to monitor the parameters of indoor toxic and harmful gases in real time, a variety of related technologies are developing, but there are still many problems to realize the popularization of indoor environment monitoring system in smart home system. The main reasons include high cost, low monitoring accuracy, unstable signal transmission and so on. Aiming at the above problems, this paper designs a set of indoor environment monitoring system which has many advantages such as high precision, low cost and so on, which is realized by Wi-Fi technology. The front end of the system contains formaldehyde sensor, which is developed by oneself. The sensitivity of the monitoring unit is very high. Among them, the transmission mode of information is Wi-Fi technology with stable transmission information and long transmission distance. The front-end monitoring circuit can monitor the environmental parameters such as temperature, humidity, formaldehyde concentration and CO concentration of each unit in real time. As long as there is a PC connected to the Internet, the remote real-time observation of the environmental parameters of the observed point can be realized on the PC. The hardware circuit design of the front-end monitoring system in this system, according to the requirements of the design, function realization requirements, hardware cost, power consumption and performance, the microprocessor chip, A / D conversion chip is selected. The sensitive material of formaldehyde sensor is CO sensor probe, temperature and humidity sensor, etc. Finally, MCU minimum system circuit, formaldehyde monitoring module circuit, CO monitoring module circuit, temperature and humidity monitoring module circuit, alarm circuit, display circuit, etc. Power conversion circuit, etc. The software design of this system is based on the hardware circuit system of the lower computer, and the software system of the lower computer is designed. With the cooperation of the hardware and software of the lower computer, the function that the lower computer can monitor the air environment parameters of a unit in real time is realized. The information communication between the lower computer and the host computer is realized by the combination of the Wi-Fi module and the control program. The design of upper computer Web interface is based on Spring MVC3 hibernate 3 development software and Oracle 11g database. The upper computer system has the functions of information storage, real-time monitoring, query and so on. Finally, through the testing of the whole intelligent home indoor environment monitoring system, the results show that the monitoring system designed in this paper runs smoothly and meets the design requirements.
【学位授予单位】：吉林建筑大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU855;TP274

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