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毕业设计-基于物联网的机房环境监测与安防报警系统之接近开关红外反射和干簧磁门霍尔开关模块，共29页，8413字，附开题报告等
中文提要
针对当今社会对计算机机房环境设备实时、动态监控的需求,设计了一个基于物联网技术的计算机机房环境监测系统。并详细阐述了系统的整体设计、系统的硬件系统设计和软件系统设计,实现了一个远程、实时、自动,并且告警方式多样的计算机机房环境监控系统。本文研究的内容是基于物联网的机房环境监测与安防报警系统。
目前的机房设计中经常会出现温湿度控制不稳定、噪声超标、机房紧急照明亮度不达标等问题。而且由于大多是由人来控制系统，所以当控制人员不在或者睡着时，会影响机房安全监测的实时性等问题。为了改善机房的安全，本文提出了更有效的方法。通过几个月以来的研究和开发，我通过研究干簧磁门-霍尔开关模块，达到了对机房开关的有效控制，并且对其驱动程序做了分析。通过研究接近开关/红外反射模块，达到了当按键开关按下或光电传感器检测到光线有明显变化时会触发相应中断的目的，并分析了其驱动程序。
关键词：ARM；物联网；嵌入式Linux；霍尔开关；接近开关

Abstract
In today's society equipment of computer room environment, dynamic real-time monitoring requirements, designed a computer room environment monitoring system based on Internet of things technology. In detail elaborated the system's overall design, system hardware system and software system design and implementation of a remote, real-time, automatic, and the alarm mode diversity of computer room environment monitoring system. The content of this study is based on Internet of things of computer room environment monitoring and security alarm system.
The current computer room design often appear unstable, noise levels, temperature and humidity control room emergency lighting brightness not standard and so on. And because mostly by people to control the system, so when the control is not people or fell asleep, will affect the computer safety monitoring real-time, etc. To improve the safety of computer room, this paper presents a more effective method. Through several months of research and development, I through the reed magnetic door - hall switch module, achieved the effective control of switch of computer room, and made analysis for the driver. Through research to approach switch/infrared reflection module, when the key switch is pressed, or photoelectric sensor detects light has obvious change triggers the corresponding interrupt, the purpose of and analyzes their drivers.
Key words: ARM; Lot; Embedded Linux; Hall switch; Touch switch

目录
第一章 绪论 - 4 -
1.1开发背景介绍 - 4 -
1.2嵌入式系统开发 - 5 -
1.3研究目标 - 6 -
第二章 Linux简介 - 6 -
2.1嵌入式Linux简介 - 6 -
2.2嵌入式Linux开发平台简介 - 7 -
2.3嵌入式Linux开发流程 - 8 -
第三章 干黄门磁/霍尔开关模块的研究 - 10 -
3.1概述 - 10 -
3.1.1原理及说明 - 11 -
3.2 开发环境 - 12 -
3.3 开发流程 - 12 -
3.3.1 编译霍尔开关模块 - 12 -
3.3.2 目标板测试 - 13 -
3.4驱动程序分析 - 14 -
第四章 接近开关与红外反射传感器的研究 - 18 -
4.1 概述 - 18 -
4.1.1 原理及说明 - 19 -
4.2 开发环境 - 20 -
4.3 开发流程 - 20 -
4.3.1 编译接近开关/红外反射模块 - 20 -
4.3.2 目标板测试 - 21 -
4.4 驱动程序分析 - 22 -
结论 - 25 -
致谢 - 26 -
参考文献 - 27 -