单片机水温水位控制系统

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1、51单片机水温水位控制系统摘要本温度设计采用现常见的89C51单片机，配以DS18B20数字温度传感器，该温度传感器可自行设置温度上下限。单片机将检测到的温度信号与输入的温度上、下限进行比较，由此作出判断是否启动继电器以开启设备。系统包括单片机模块、温度检测模块、水位检测模块和驱动电路设计四个部分。文中对每个部分功能、实现过程作了详细介绍。关键词：DS18B20数字温度传感器89C51水温水位目录一．概述..................................................................

2、......................................31.1课题研究的目的及意义...................................................................31.2技术指标...........................................................................................3二．总体设计方案...........................................

3、.............................................3三．详细设计方案........................................................................................31.1温度检测系统...................................................................................31.2水位检测系统.........................

4、..........................................................5四．元件说明................................................................................................61.1工作原理..........................................................................................61.2单片机的选择.

5、..................................................................................61.3温度传感器.......................................................................................81.4水位传感器...................................................................................

6、..111.5显示元件........................................................................................11五．硬件模块设计......................................................................................121.1单片机模块设计...............................................................

7、..............121.2温度检测模块.................................................................................131.3水位检测模块.................................................................................141.4控制模块...............................................................

8、.........................151.5驱动电路设计..........................................................................