目录摘要...................................................................................................................................3Controlingsystemdesignandsimulationofthesolarwaterheaterbasedonsinglechipmicrocomputer...................................................................................................................4第一章前言......................................................................................................................51.1设计背景和意义..................................................................................................51.2国内外的发展趋势..............................................................................................5第二章系统设计总览......................................................................................................72.1控制中心..............................................................................................................72.2外围设备..............................................................................................................7第三章系统硬件设计......................................................................................................83.1总硬件的设计原理与框图..................................................................................83.2温度传感器DS18B20模块.................................................................................93.3水位传感器模块................................................................................................103.4电磁阀原理及电路............................................................................................123.4.1光电隔离器原理......................................................................................123.4.2继电器的原理..........................................................................................133.5显示模块............................................................................................................133.6键盘模块............................................................................................................143.7报警器................................................................................................................153.8CPU模块............................................................................................................16第四章软件设计............................................................................................................194.1DS18B20的调试与驱动....................................................................................214.1.1DS18B20的驱动程序..............................................................................214.1.2DS18B20的工作协议.............................................................................214.1.3DS18B20的图时序..................................................................................224.2按键电路模块的程序设计................................................................................234.3LED显示模块程序............................................................................................26第五章系统的仿真........................................................................................................295.1仿真软件的介绍................................................................................................295.2温...
