微机供水监控系统设计 学位论文.docVIP

摘 要 随着我国经济的发展，一幢幢高楼拔地而起，对供水系统要求也越来越高。为了满足人们日常生活的需要，本文设计了微机供水监控系统。该控制系统以西门子PLC为控制中心，并在PLC的程序当中运用了PID指令。其原理主要是通过PLC模拟量模块对现场的水压信号进行采集，与水压的设定值进行比对，通过PLC的PID调节，进而调整变频器的输出频率，调节水泵的转速，进而达到了恒压供水的目的。此外，该系统还设计了上位机监控部分，监控界面应用亚控组态王软件进行设计，通过该上位机软件可以有效的将供水现场的情况上传给控制中心或者某个值班室。使工作人员不必深入供水现场就可以直观的了解到一个甚至多个供水现场的工作状况，工作人员的效率也就随之提高。 通过多次深入供水设备现场实地考察。事实证明本次设计的微机供水监控系统可以达到恒压供水的目的，并将现实中的技术更提高了一步。 关键词：恒压供水；PLC；组态；变频器 Abstract With the development of our national economy, building, water supply for Mr Mootoo system requires more and more is also high. In order to meet the needs of Peoples Daily life, this paper designs a microcomputer monitoring system of water. This control system with Siemens PLC to control center, and in the process of PLC using PID instructions. Its principle is mainly through PLC analog module of the scene of hydraulic pressure signal, and the setting, through the PLC and inverter, adjust the PID frequency, adjust the output speed pump, and the constant pressure water supply to the purpose. In addition, this system is designed for PC monitor, monitor and control interface application software design kingview , through the PC software can effectively will supply site on the condition to control center or a duty. Make work personnel are not deep water scene can intuitionistic knowledge to an even more water scene, the work efficiency of the working personnel will increase. Through many deep water equipment field investigation. Facts prove the design of microcomputer monitoring system can achieve supply of constant pressure water supply, and the technology to improve the more realistic. Keywords: Constant pressure water supply, PLC, configuration , inverter 目 录 前 言 1 1 绪 论 2 1.1 课题背景 2 1.2 课题研究意义 3 1.3 课题分析与研究计划 4 1.4 社会经济效益分析 5 2 微机供水监控系统硬件设计 6 2.1 硬件模型设计 6 2.2 硬件清单 9 2.3 硬件搭接 10 2.4 变频器 11 2.4.1 变频器硬件部分简介 11 2.4.2 变频器参数设定部分 13 3 程序设计 16 3.1 PLC的发展 16 3.2 PLC的特点及应用 17 3.3 程序设计分析及流程图 19 3.4 PID指令 20 3.4.1 PID算法及PLC中的PID简介 20 3.4.2 PID指令 20 3.4.3