毕业论文《火灾报警器系统的单片机设计》.doc

精品 1 - 1 摘 要 本文介绍了一种适用于多种公共场所的基于单片机火灾报警系统。针对现有的分布式火灾报警系统投资大、安装麻烦、工程量大等缺点，设计了一种基于单片机的无线火灾报警系统。系统上位机采用AT89C51单片机作为主控芯片，可分为主控模块、存储模块、人机对话模块(包括数码管和键盘)和无线射频通信模块。系统下位机以AT89C51系列单片机作为主控芯片，可分为主控模块、烟感探头以及无线射频通信模块。该系统具有很好的可靠性和实时性，具有广泛的市场前景。随着计算机技术和信息技术等高新技术的快速发展，无线火灾报警技术也得到迅速的推动。无线火灾报警技术的应用范围是非常广泛的，更是与我们的生活及生命财产安全息息相关的。 本文综合运用火灾自动报警系统观点出发将分布式控制的思想应用到报警控制系统的设计之中，采用一台AT89C51系列单片机作为系统的上位机，下位机也采用了与上位机相同的AT89C51单片机。上位机和下位机之间通过无线模块进行通讯，组成分布式智能消防报警控制系统。该系统下位机的感烟探测器由感烟探测器经加装无线传输设备而成。上位机的液晶显示界面要求提供良好人机对话界面，在故障和报警时提供相应的声光报警信号和数码管显示。 关键词：火灾报警；AT89C51单片机；ADC0809； Abstract This article introduced one kind is suitable for many kinds of public place wireless fire alarm system. For existing distributed fire alarm system investments, installation problems, engineering capacity shortcomings, designed a single wireless fire alarm system. System using AT89C51 microcontroller as master chip, can be divided into the master module, enclosure, interactive modules (including LCD and keyboard) and radio frequency communications module.The system has a very good reliability and real-time performance, wireless fire alarm technology has been rapidly. Wireless fire alarm technology is very extensive, with our lives and the lives and property. This article is a combination of wireless communication technology, from the point of view will be distributed control concepts to wireless alarm control system design, PLC or the host computer the same AT89C51 microcontroller. Master and slave over the wireless module for communication, distributed intelligent fire alarm control system. The LCD displays the interface requires a good interactive interface, in failure and an alert provides alarming signals and LCD screen displays. Key words: Fire Alarm; AT89C51 Microcontroller; ADC0809 精品 PAGE 9 - 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc325958884 前 言 PAGEREF _Toc325958884 \h - 8 - HYPERLINK \l _Toc325958886 1 课题研究的背景和意义 PAGEREF _Toc325958886 \h - 9 - HYPERLINK \l _Toc325958887 1.1 课题研究的背景和意义 PAGE