电气火灾监控系统设计

文档编号:ZD1094    文档字数:15809,页数:30

摘要
 随着国民经济的飞速发展,社会用电量大为增加。各种电气设备的用量陡增，以漏电短路为主的电气火灾事故也随之剧增。应用电气火灾智能监控技术，可以及时发现并消除电气线路的火灾隐患，保护人民生命和财产安全。
 本文介绍了一种的剩余电流电气火灾监控系统，该系统能对监控线路的电气火灾预警、故障与报警记录保存等工作。 然后分别对各硬件模块和软件模块的组成做介绍。硬件平台主要由控制模块、信号采集模块、数据存储与时钟模块、人机交互模块、输入输出模块、通讯模块与电源模块等组成。软件模块主要由数据处理模块、故障处理模块、主显示模块与中断模块等组成。
 经过对该剩余电流电流电气火灾监控系统的测试与分析，该系统能满足国家标准的要求，并具有低功耗，高精度，低误报率，易操作维护等特点。

关键词：电气火灾；MSP430；改进交流采样；RS485；

Abstract
With the national economic development, power consumption has increased dramatically. The larger and larger amounts using of various electrical equipments, so that Electrical fire accidents mainly caused by leakage current increased sharply. Electric circuit fire hazards can be discovered and eliminated in time, so people's lives and property can be protect, through using Intelligent control system for electric fire prevention.
This paper introduces an electric fire intelligent monitoring system. This system can monitor the electrical fire alarm circuits, fault and alarm record-keeping and so on.
Then it introduces the composition of hardware module and software modules separately. Hardware module consist of the control module , the signal acquisition module, data storage and clock modules, interactive modules, input and output modules, communication modules and power modules and other components. Software module consists of the data processing module, fault handling module, the main display module and the interrupt module and other components.
The system can meet the requirements of national standards, and has low power, high accuracy, low false alarm rate, easy to operate and maintain, by testing and analysis the electric fire intelligent monitoring system.

Keywords：electrical fire；MSP430；improved AC sampling；RS485；

目录
摘要 I
Abstract II
1 前 言 1
1.1  课题研究背景 1
1.2  电气火灾监控系统简介 1
1.2.1国外电气火灾防范规范 2
1.2.2国内电气火灾监控系列产品发展趋势 3
1.3  本课题研究目的与意义 4
2 电气火灾检测技术 5
2.1 本章引论 5
2.2 剩余电流检测原理 5
2.3 交流采样技术 6
2.4 互感器选择 6
3 电气火灾智能监控系统硬件设计与实现 8
3.1 本章引论 8
3.2 火灾探测处理器选型-MSP430F149 8
3.3 火灾探测器功能模块设计 10
3.3.1 信号采集模块 11
3.3.2 时钟与数据存储模块 14
3.3.3 键盘显示模块 14
3.3.4 输入输出模块 15
3.3.5 通讯模块 16
3.3.6 系统电源模块 16
3.4 本章小结 17
4 电气火灾智能监控系统软件设计 18
4.1 本章引论 18
4.2 电气火灾探测器软件设计 18
4.2.1 软件主程序设计 18
4.2.2 中断任务设计 21
4.3 本章小结 22
5 展望与总结 23
致 谢 24
参考文献 25

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