消防火灾自动报警系统(5)

毕业论文

火灾监控系统的设计

作者姓名：赵亮

学科专业：应用电子技术

学号：22

指导教师：焦冬莉

完成日期：2011-06-09

太原工业学院

Taiyuan Institute of Technology

毕业设计（论文）任务书

指导教师：教研室主任：系主任：

毕业论文

火灾监控系统的设计

作者姓名：赵亮

学科专业：应用电子技术

学号：22

指导教师：焦冬莉

完成日期：2011-06-09

太原工业学院

Taiyuan Institute of Technology

设计任务书题目: 火灾监控系统的设计

设计工作量:

1、

2、

3、

4、

设计日期：

发题日期: 2010年04月26日

完成日期: 2010年06月18日设计者：

班级0870221

学号22

姓名赵亮

指导教师焦冬莉

指导教师评语：成绩：

指导教师（签名）：

年月日评阅教师评语：成绩：

评阅教师（签名）：

年月日

火灾监控系统的设计

摘要

随着“信息时代”的到来，传感器技术得到了显著的进步，他的应用领域越来越广泛，要求也越来越高，需求越来越迫切。传感器技术已成为衡量一个国家科学技术发展水平的重要标志之一。因此，了解并掌握各类传感器的基本结构、工作原理及特性是非常重要的。

为了提高人们对传感器的认识和了解，尤其是对烟雾传感器的用法与用途的了解，基于实用、广泛和典型的原则而设计了本系统。本文利用单片机结合传感器技术开发设计了这一烟雾监控系统。

本论文以电阻式烟雾传感器和单片机技术为核心并与其他电子技术相结合，设计出一种技术水平较好的烟雾报警器。其中选用MQ-2型半导体可燃气体敏感元件烟雾传感器实现烟雾的检测，具有灵敏度高、响应快、抗干扰能力强等优点，而且价格低廉，使用寿命长。选用的STC12C5410AD单片机，其整合了A/D转换、硬件乘法器、硬件脉宽调制器等资源，具有高速、低功耗、超强抗干扰等优点，是目前同类技术中性价比较高的产品。

以STC12C5410AD单片机和MQ-2型半导体电阻式烟雾传感器为核心设计的烟雾报警器可实现声光报警、故障自诊断、浓度显示、报警限设置、延时报警及与上位机串口通信等功能。是一种结构简单、性能稳定、使用方便、价格低廉、智能化的烟雾报警器。具有一定的实用价值。

关键词烟雾，报警器，STC12C5410，传感器

Fire monitoring system design

Abstrac

With the arrival of the "information age", the sensor technology have made significant progress, he is more and more extensive application field of requirements, more and more is also high, demand more and more urgent. The sensor technology has become the measure of a national science and technology development level one of the important marks. Therefore, understand and master the basic structure of of all kinds of sensors, work principle and characteristics is very important.

In order to improve the people of the sensor to know and understand, especially for smoke sensor of usage with use of understanding, based on practical, widely and typical principle and design the system. This paper USES single sensor technology combined with development and design the smoke control system. This papers to the resistive sensor and single chip microcomputer smoke technology as the core and with other electronic technologies, design a kind of technical level is good smoke alarm. Among them choose MQ-type 2 semiconductor combustible gas sensitive components smoke sensor to make the smoke detection, has a high sensitivity, fast response and strong anti-interference ability and other advantages, and the price is low, service life long. The selection of STC12C5410AD microcontroller, the integration of A/D conversion, hardware on time-multiplier, hardware pulse width omdulatros and resources, has high speed, low power consumption, strong anti-jamming and other advantages, is similar in the technology of high cost performance products.

To STC12C5410AD single-chip microcomputer and MQ-type 2 semiconductor resistive sensor as the core design of smoke smoke alarm can achieve sound and light alarm, fault diagnosis, concentration, the alarm limit that setting, delay alarm and and the upper serial communication etc. Function. Is a kind of simple structure, stable performance, easy to use, inexpensive and intelligent smoke alarm. Has certain practical value. 、

Key Words：Smoke, alarm, STC12C5410, sensor