摘要随着社会经济的发展,越来越多的家庭开始使用燃气,但是家庭使用燃气给我们带来了很多潜在的风险,燃气的主要成分有一氧化碳,一氧化碳易燃无色无味,大量密度的一氧化碳泄漏会造成火灾,给人们的生命财产带来极大的风险。针对这种情况,需要我们研制一种廉价操作简便的燃气报警器。下面本文将设计一款满足家庭使用的燃气报警器。72880
这次的毕业论文主要对家用燃气成分而设计的家用燃气报警器,主要组成部分有:STC89C52丶LCD液晶显示器丶烟雾检测系统丶蜂鸣报警系统等。本次设计的家用燃气报警器是一种性能稳定、价格廉价、使用方便、结构简单的报警器,实用性较强。燃气泄漏时并达到一定浓度(系统设置的安全值),家用燃气报警器开始工作并声光报警,提醒家里有燃气泄漏,人们应当及时采取措施。
毕业论文关键词:STC89C52单片机 烟雾传感器 声光报警
Household Gas Alarm
Abstract With the development of social economy, more and more families start to use gas, but the families use gas brought us o lot of potential risks, and the main components of the gas with carbon monoxide, carbon monoxide flammable colorless, tasteless, a large number of density of carbon monoxide leakage will cause a fire, to people is life and property。 Aimed at this situation, we need to develop a cheap convenient operation of the gas alarm。 Below this paper will design a meet the families use gas alarm。
This graduation thesis mainly for household gas composition and design of household gas alarm, main component: STC89C52, LCD liquid crystal display, smoke detection system, buzzer alarm system and so on。 The design of household gas alarm is a kind of stable performance, price cheap, easy to use, simple structure of alarm, and strong practicability。 When the gas leakage and reaches a certain concentration system Settings, household gas alarm start to work and sound and light alarm, at home there is gas leakage, remind people should take measures in time。
Key Words:STC89C52 chip-microcomputer smoke transducer sound-light alarm
目录
摘要 Ⅰ
Abstract Ⅱ
1绪论 1
1。1研究背景 1
1。2发展现状 1
2家用燃气报警器总体方案设计 2
3家用燃气报警器芯片资料简介 3
3。1LCD液晶显示模块 3
3。2 MQ2烟雾传感器原理和介绍 5
3。3ADC0832模数转换器原理和介绍 6
3。4 STC89C52单片机原理和介绍 8
4家用燃气报警器硬件实现及单元电路设计 12
4。1主控制模块 12
4。2显示模块电路 12
4。3烟雾检测AD采集电路 13
4。4声音报警电路 13
4。5按键控制电路 14
4。6按键控制电路 14
5家用燃气报警器系统软件设计 16
6家用燃气报警器系统的安装与调试 18
6。1安装 18
6。2调试电路