摘要现实生活中，火灾报警系统是用来进行火灾检测处理的最重要的组成部分，广泛的应用在各种建筑中，用来实现对建筑内发生的火灾进行报警和处理，减少由于火灾所带来的损失，是当前社会保障人民生产生活安全的必要手段。69584

本设计是利用单片机作为设计核心、以模块化作为设计思想，从硬件和软件方面进行火灾报警系统的设计。根据任务要求，设计系统流程图，选择设计所用硬件，对各模块组成部分进行介绍和说明，编写传感器初值的设置、采集处理温度数据、采集处理烟雾数据、声光报警、现场应急保护的程序。使用仿真软件Proteus进行仿真。

本设计系统在火灾现场温度和烟雾浓度超过系统设置上限时，可以实现声光报警，并采取自动排烟、喷洒灭火剂等有效措施，减少了火灾现场火情扩大的机会，可以有效地抑制火灾。本系统灵敏度高、精度准确、适合在多种环境下进行火灾报警，实现了对火灾的准确报警，快速响应,为维护社会安全提供了强有力的保护。

该论文有图24幅，参考文献21篇。

毕业论文关键词：单片机  温度传感器  烟雾传感器  火灾报警 

 Fire Alarm System Design Based on Single-chip Microcomputer

Abstract

In real life, fire detection processing is an important part of fire alarm system, It is widely used in all kinds of buildings and used to implement the buildings fire alarm and processing to reduce the loss brought about by the fire, It is the necessary way for the current social security of the people's production and living security.

The design is the use of single chip microcomputer as the core, with modular design as design ideas, from the aspects of hardware and software for the design of fire alarm system. According to the mission requirements, design flow chart of system, choose the used hardware design, introduction and explanation, for each module component to write the initial value setting, temperature sensor signal collection and processing, smoke signal collection and processing, alarm system, fire protection system and so on. Using the simulation software Proteus simulation.

The design system at the scene of the fire temperature and smoke concentration exceed limit, the system Settings can realize sound and light alarm, and take effective measures, such as automatic smoke, spray extinguishing agent reduces the chance of the scene of the fire fire expand, can effectively suppress the fire. This system has high sensitivity, accurate, and suitable for precision under the environment of a variety of fire alarm, realized the accurate fire detection and alarm, fast response. Is the strong of social security protection.

Key Words: Single-chip Microcomputer  The Temperature Sensor  Smoke Sensor   Fire Alarm

目 录

摘要 I

Abstract II

目录 III

图清单 IV

变量注释表 V

1 绪论 1

1.1 课题研究背景及现状 1

1.2 设计的目的和意义 2

1.3 本设计主要研究内容 2

1.4 本章小结 2

2 方案设计 3

2.1 火灾介绍 3

2.2 系统功能分析 3

2.3 硬件结构 4

2.4 软件结构