摘 要：本论文设计了一种基于单片机的智能火灾报警系统，是以AT89C51单片机为控制中心，接受以及处理探测器件输出的火灾发生期间所产生的烟、温、光等信号，连同外界相关的环境参数一起传送给报警控制器，报警控制器再根据获取的数据及内部存储的大量正常环境数据的比较，来判断火灾是否存在，以及决定是否报警。本文在硬件方面完成了单片机接口电路、A/D转换电路、烟雾信号采集电路以及声、光报警电路的设计，在软件方面给出了本系统的工作流程、数据采集子流程和火灾监测及报警子流程。最后通过Protues软件进行仿真调试，给出了不同温度、烟雾浓度环境下的仿真结果，验证了所设计的系统在烟雾或温度异常时，可以进行报警，达到了预期效果。65143
毕业论文关键词：火灾，AT89C51单片机，报警控制器，电路，报警
Abstract:This paper designed a kind of intelligent fire alarm system based on single chip microcomputer,is:with AT89C51 as the control center,accepting and processing detector output produced during the period of the fire smoke,such as temperature,light signal,along with external related environment parameters to alarm controller,alarm controller according to access data and the internal storage of a large number of normal environmental data comparison,to determine whether there is a fire,and decide whether to call the police.Completed the microcontroller based on the hardware interface circuit and A/D conversion circuit,the smoke signal acquisition circuit and the design of sound and light alarm circuit,the working process of this system are given in terms of software,the data collection process and fire monitoring and alarm subprocesses.Finally through Protues simulation debugging software,gives the simulation results under different temperature,smoke concentration environment,the design is verified by the system when the smoke or temperature anomaly,can call the police,the desired effect.
Key words: fire,AT89C51 microcontroller,alarm controller,circuit,call the police
目 录
1 绪论 3
1.1 论文课题研究的背景和意义 3
1.3 论文的主要内容 4
2 智能火灾报警系统整体方案设计 4
2.1 火灾的产生 4
2.2 智能火灾报警系统的总体方案设计 4
2.2.1 智能火灾报警系统的硬件结构 4
2.2.2 智能火灾报警系统的软件结构 5
2.3 智能火灾报警系统的功能 5
3 智能火灾报警系统的硬件设计 6
3.1 硬件器件的选择 6
3.1.1 单片机的选择 6
3.1.2 A/D转换器的选择 6
3.1.3 传感器的选择 7
3.2 电路模块的设计 7
3.2.1 单片机外围接口电路 7
3.2.2 A/D转换电路 9
3.2.3 烟雾信号采集电路 10
3.2.4 光报警电路 10
3.2.5 声报警电路 AT89C51单片机智能火灾报警系统设计+程序+电路图:http://www.youerw.com/zidonghua/lunwen_72622.html