基于单片机的恒压供水控制器设计

基于单片机的恒压供水控制器设计

文档编号:ZD645 文档字数:4516,页数:17

摘要

本课题利用单片机实现对供水压力进行测量与控制。其电路主要采用AT89C51单片机作为压力控制核心，电路用检测元件对检测压力信号进行采样，经过A/D转换为数字信号，送给单片机进行运算控制，单片机的输出信号经过放大电路放大后, 送给24V直流中间继电器控制变频器通过变频器控制电动机的转速以实现对供水压力的控制。

关键字: 传感器，A／D转换，控制器，AT89C51

Abstract
This topic realizes using the monolithic integrated circuit to the water supply pressure carries on the survey and the control. Its electric circuit mainly uses at89C51 monolithic integrated circuit to take the pressure control core, the electric circuit to examines the pressure signal with the detecting element to carry on the sampling, transforms after A/D into the digital signal, gives the monolithic integrated circuit to carry on the operating control, monolithic integrated circuit's output signal enlarges after the amplifying circuit, gives 24V to direct current the intermediate relay control frequency changer through the frequency changer control motor's rotational speed to realize to the water supply pressure control.
key words: The sensor, A/D transforms, controller, AT89C51

目录
摘要 I
Abstract I
目录 II
引言 1
1 系统构成 1
1.1 系统框图 1
1.2 工作原理 2
1.3 系统各部件说明 2
2 系统软件 8
2.1 程序设计 8
2.2 控制流程图 8
结论 15
参考文献 15

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