基于单片微型计算机的多路室内火灾报警器

电子机电论文编号:JD076    附开题报告,字数:15733,页数:50

目录

摘要
前言 ………………………………………………………………………………1
正文 ………………………………………………………………………………2
1 系统的功能和设计方案……………………………………………………2
1.1系统的功能与设计要求………………………………………………2
1.2设计方案………………………………………………………………2
1.2.1测温电路方案设计……………………………………………2
1.2.2显示电路方案设计……………………………………………3
1.3关键技术及解决方法…………………………………………………4
1.3.1　DS18B20原理简介…………………………………………4
1.3.2烟雾传感器…………………………………………………10
2 硬件系统设计………………………………………………………………11
2.1 系统设计框图…………………………………………………………11
2.2系统各功能模块………………………………………………………11
2.2.1测温电路…………………………………………………………11
2.2.2显示电路…………………………………………………………12
2.2.3按键电路…………………………………………………………13
2.2.4报警电路    ……………………………………………………14
2.2.5电源、时钟、复位电路…………………………………………15
3 软件系统设计……………………………………………………………17
3.1程序设计思想………………………………………………………17
3.2程序功能分析………………………………………………………17
3.2.1主程序……………………………………………………………17
3.2.2温度检测程序……………………………………………………19
3.2.3 温度处理程序……………………………………………………20
3.2.4温度显示程序……………………………………………………21
3.2.5比较处理程序……………………………………………………22
3.2.6按键扫描程序……………………………………………………22
3.2.7按键处理程序……………………………………………………23
4 系统的组装与调试………………………………………………………24
     4.1引言…………………………………………………………………24
4.2元件的识别与安装焊接……………………………………………24
4.3硬件系统调试………………………………………………………25
4.4软件系统调试………………………………………………………26
5 系统结果 ………………………………………………………………27
5.1课题完成情况………………………………………………………27
5.2系统实物图…………………………………………………………27
6系统设计展望………………………………………………………………27
7毕业设计总结………………………………………………………………28
致谢………………………………………………………………………………29
参考文献…………………………………………………………………………30
 附录 ……………………………………………………………………………31
附录A  系统总电路图…………………………………………………………31
附录B  元器件清单……………………………………………………………32
 附录C主要电路芯片  …………………………………………………………32
附录D系统源程序  ……………………………………………………………35

摘要
该设计是有单片微机控制的火灾自动探测报警控制器，将烟雾传感器及温度传感器接入单片微机，经微机运算和逻辑判断，来进行火灾报警，异常（烟感，温感其中之一动作）报警。由于单片机集成度较高，故该设计具有结构简单，可靠性好，成本低等优点。
由于现代建筑事业的快速发展，在现代建筑中要求具有火灾报警以至自动消防系统，基于此目的,采用了AT89S52单片机进行设计,大大提高了系统的智能化和反应速度。且本设计可同时用于监测多个区域,其工作原理与本文所介绍内容基本相同。

关键字：  AT89S52单片机；18B20芯片；传感器；火灾报警

Abstract

This design has the fire automatic-detection which the monolithic microcomputer controls to report to the police the controller, turns on the smoke sensor and the temperature sensor the monolithic microcomputer, after microcomputer operation and logical judgement, Reports to the police the integrated circuit after the special-purpose acousto-optics to carry on the fire to report to the police. Because monolithic integrated circuit integration rate higher, therefore this design has the structure simply, reliability good, the cost is low and so on the merit.

As a result of the modern architecture enterprise fast development, the request has the fire in the modern architecture to report to the police down to the automatic fire prevention system, based on this goal, has used the AT89C52 monolithic integrated circuit carries on the design, greatly enhanced the system intellectualization and the reaction rate. Also this design may simultaneously use in to monitor many regions, its principle of work and this article introduced the content basic is same.

Keywords: AT89S52 monolithic integrated circuit ;18B20 Chip; Sensor;

 The fire reports