存档日期:存档编号:江苏师范大学科文学院本科生毕业设计基于单片机的锅炉温度和压力控制系统设计江苏师范大学科文学院本科生毕业设计基于单片机的锅炉温度和压力控制系统设计本科生毕业设计(论文)论文题目:基于单片机的锅炉温度和压力控制系统设计姓名:王忱勖系别:机电工程系专业:电气工程及其自动化年级、学号:09电气098320106指导教师:黄艳江苏师范大学科文学院印制I摘要本文介绍了以80C51单片机为核心的温度和压力控制系统的工作原理和设计方法。温度信号由温度芯片DS18B20采集,以数字信号的形式传送给单片机;温度和压力信号由压力传感器进行实时采集,通过A/D转换器将模拟信号转换成数字信号传送给单片机,单片机经过计算与处理后将温度、压力信息显示在LED显示器上,文中介绍了该控制系统的硬件部分,包括:温度检测电路、温度控制电路、压力检测电路、稳压电源电路和其他一些单片机接口电路。文中还介绍了软件设计部分,在这里采用模块化结构编程。软件部分主要包括:主程序、温度和压力控制子程序、显示子程序等。该系统可以对锅炉的温度与压力进行全自动化的控制,不仅节省了人力资源同时使用电加热系统,更节能,更环保,更具有有可行性。关键词:温度检测A/D转换压力检测PID控制;IIAbstractThispaperintroducesthe51microcontrollerasthecoretemperatureandpressuresystemoftheworkingprincipleanddesignmethod.TemperaturesignalchipDS18B20collectionbythetemperature,withdigitalsignaltransmittedtotheformofsinglechipmicrocomputer;Pressurebylevelsensorsignalpressureofrealtimedatacollection,withananalogformtransfertothesinglechipmicrocomputer,microcontrollerthroughtheA/Dconversion,convertedintodigitalsignals,calculationandtreatmentwilltemperature,pressure,waterlevelinformationdisplayedintheLCDmonitor,thepaperintroducesthehardwarepartofthecontrolsystem,including:temperaturedetectioncircuit,temperaturecontrolcircuit,pressuredetectioncircuit,pressurecontrolcircuitandothersinglechipmicrocomputerinterfacecircuit.Thepaperalsointroducessoftwaredesignpart,herethemodularizedstructureprogramming.Softwareismainlythreeparts:themainprogram,keyboardinterruptandkeyprocessingprogram,prearcinginterruptionprogram.TheotheroneXieZiprogramsinclude:temperaturesignalprocessingprogram,showprogram,PIDprocessingprocedure,etc.Thissystemcantotheboilertemperatureandwaterlevelofthefullautomationcontrol,notonlysavethehumanresource,andatthesametimeuseelectricheatingsystem,moreenergyefficient,moreenvironmentalprotectionandismoreafeasibility.Keywords:TemperaturedetectionA/DconversionWaterpressuretestPIDcontrol目录III摘要.....................................................IAbstract..........................................................II1绪论.............................................................11.1研究背景及现状...............................................11.2发展前景....................................................11.3系统的总体设计思想..........................................22锅炉温度和压力控制系统主要器件选择..........................42.1系统结构总框图...............................................42.2单片机的选择................................................42.3温度传感器..................................................72.4压力传感器..................................................92.5A/D转换器..................................................113锅炉温度和压力控制系统硬件电路的设计......................143.1最小单片机系统.............................................143.1.1晶振电路..............................................143.1.2复位电路..........................