一氧化碳报警器毕业设计

成都理工大学工程技术学院毕业论文一氧化碳报警器设计作者姓名：***专业名称：自动化指导教师：***讲师一氧化碳报警器设计-I-摘要随着计算机技术和通信技术的飞速发展，人类的生活水平有着日新月异的变化，“以人为本、舒适、便利、智能化”已成为家居系统的重要设计理念，家居智能化控制系统力求创造安全、舒适的生活环境的设计理念，成为当今众多开发商高度关注的卖点之一。为此本设计研制了智能家居控制系统中的报警系统。本设计根据设计任务和实际考察进行了方案设计和方案论证，并且设计了相应的硬件电路和软件系统，研制了一氧化碳报警器。该系统利用本文采用MQ-2型气敏传感器和STC12C5A60S2单片机为核心技术设计的一氧化碳报警器，运用单片机内部的十位模数转换器把传感器采集到的气体的浓度信号转换成数字信号，实现了气体或烟雾报警、报警限设置等功能，对有毒气体或烟雾检测报警的实现技术进行了的有意义的探索与研究，在有害气体监测实现方面有一定的参考价值。关键词：STC12C5A60S2气敏传感器继电器一氧化碳报警器设计-II-AbstractWiththedevelopmentrapidlyofcomputertechnologyandcommunicabletechnology,humanstandardoflivingchangelargely.Andtheideaofbasedonhuman,coziness,convenienceandintelligentizeisalreadybecomeimportantdesignideas,meanwhile,thedesignideaofaimingatestablishsafeandcomfortablelivingenvironmentisalsobecomingthesellingmeritthatlotsoflandagentshavemoreattention.Inthispaper,warningsystemofintelligenthousecontrolsystem.Designschemeanddemonstratedschemearecarriedoutbasedonthedesigntaskandobservationinreality,hardwareandsoftwaresystemisalldesigned,andCOALARMisproduced.ThesystemusestheMQ-2typegassensorandSTC12C5A60S2SCMasthecoretechnologyofcarbonmonoxidealarmdesign,usingtenbitanalogtodigitalconverterchipinternalgasconcentrationsignalcollectedbythesensorisconvertedintodigitalsignal,realizegasorsmokealarm,thealarmlimitsettingfunction,explorationandResearchontherealizationtechnologyofalarmtoxicgasorsmokedetectionismeaningful,theharmfulgasmonitoringsystemhasacertainreferencevalue.Keywords:STC12C5A60S2,gassensor,relay一氧化碳报警器设计-III-目录摘要................................................................................................................IAbstract.......................................................................................................II目录..............................................................................................................III前言................................................................................................................11绪论............................................................................................................21.1课题背景..........................................................................................21.2一氧化碳报警器的概述..................................................................31.3课题研究的目的及意义..................................................................41.4系统设计主要任务..........................................................................42方案设计..................................................................................................52.1设计原理..........................................................................................52.2设计思路..........................................................................................52.3气体传感器的选定..........................................................................62.4装置效果图......................................................................................73硬件电路设计..........................................................................................83.1芯片介绍及相关电路模块设计......................................................83.1.1STC12C5A60S2系列单片机简介.........................................83.1.2MQ-2气敏传感器介绍........................................................113.1.3显示电路的设计...................................................................133.1.4蜂鸣器概述...........................................................................153.1.6按键设计...............................................................................173.2系统功能扩展................................................................................173.3设计的硬件电路............................................................................174软件部分................................................................................................194.1主程序设计....................................................................................194.1.1主程序设计流程图..............................................................194.2A/D转换模块的编程.....................................................................204.3按键设计编程.................................................................................215系统制作及调试....................................................................................225.1系统PCB板的制作.......................................................................225.2硬件调试........................................................................................23一氧化碳报警器设计-IV-5.2.1检测元器件...........................................................................235.2.2检测各个引脚信号...............................................................235.3软件调试........................................................................................23总结..............................................................................................................24致谢..............................................................................................................25参考文献......................................................................................................26附件系统程序..............................