基于单片机的火灾控制及自动报警系统论文
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防火防盗报警系统的硬件设计 摘要:安全防范技术涉及到社会的方方面面,是保护国家和人民利益与安全的重要手段。随着我国经济水平的整体提高,我国的医院设施建设水平也逐步得到改善。许多医院都购买了价格昂贵的医疗设备,并且医院房屋建设改善不少,因而需要保证医疗设备的安全和预防火灾。本文主要完成了医院智能化中的防盗防火报警系统硬件部分的设计。首先确定了硬件系统的整体设计方案,采用模块化设计,确定各个模块的器件,设计制作各模块的电路,搭建出了整个硬件系统,通过整机调试,并给出了调试结果。智能化医院防盗防火报警系统集防盗防火功能于一体,可实现自动检测与自动报警。采用红外探测与微波探测器构成的双鉴探测器实现盗情检测;用温度探测器、感烟探测器和一氧化碳探测器集为一体的复合式火灾探测器来完成火情检测。本系统通过密码来识别主人身份,系统开启后只有输入正确的密码才能关闭系统。该系统同时采用看门狗集成芯片实现自诊断功能,出现故障能自动进行处理。系统从硬件和软件两方面进行了抗干扰设计,使其具有较好的抗干扰能力,完成系统可靠工作。 第1章 绪 论.... 11.1 概述.... 11.2 本课题主要工作概述.... 21.3 论文结构.... 3第2章 系统总体设计方案.... 42.1 系统总体构成.... 42.2 报警系统的功能和工作过程.... 5第3章 防盗探测器设计与实现.... 73.1 方案选择与论证.... 73.2 热释电红外探测器.... 93.2.1 热释电红外探测器件的选择.... 103.2.2 热释电红外探测器电路设计.... 113.3 微波探测器.... 133.3.1 微波探测器件的选择.... 143.3.2 微波探测器电路设计.... 14第4章 防火探测器设计与实现.... 164.1 方案论证.... 164.2 温度探测器.... 174.2.1 温度探测器件的选择.... 174.2.2 温度探测器电路设计.... 184.3 感烟探测器.... 194.3.1 感烟探测器件的选择.... 194.3.2 感烟探测器电路设计.... 204.4 CO探测器.... 214.4.1 CO探测器件的选择.... 214.4.2 CO探测器电路设计.... 22第5章 用户端报警器设计.... 245.1 用户端自动报警器总体设计.... 245.2 报警控制器芯片选择.... 255.3 报警器电路设计.... 255.3.1 键盘电路设计.... 265.3.2 密码显示电路设计.... 275.3.3 声光报警器设计.... 275.3.4 系统电源设计.... 285.3.5 看门狗电路设计.... 285.4 系统硬件抗干扰措施.... 30第6章 探测器电路调试.... 32结论.... 35致谢.... 37参考文献.... 38
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