文档介绍：自动给水系统设计
摘要
单片机系统的开发应用给现代工业测控领域带来了一次新的技术革命,自动化、智能化均离不开单片机的应用。近年来模糊控制在许多控制应用中都取得了成功,模糊控制应用于控制系统设计不需要知道被控对象精确的数学模型,对于许多无法建立精确数学模型的复杂系统能获得较好的控制效果,同时又能简化系统的设计,因此,在水箱水位自动控制系统中,模糊控制就成为较好的选择。
本文主要论述了应用模糊控制理论控制水箱水位系统,首先详尽的介绍了模糊控制理论的相关知识,在此基础上提出了用模糊理论实现对水箱水位进行控制的方案,建立了简单的基于水箱水位的模糊控制器数学模型。介绍了基于单片机的水位控制系统的设计及其相关内容。系统属于典型的基于单片机的大惯性环节的PID闭环控制装置,通用性很强,在工业过程控制中有着广泛的应用。控制系统中引入单片机,可以充分利用单片机在对采集数据加以分析并根据所得结果做出逻辑判断等方面的能力,编制出符合某种技术要求的控制程序、管理程序,实现对被控参数的控制与管理。采用单片机对水位进行控制不仅具有控制方便、简单和灵活性大等优点,而且可以大幅度提高被控系统的技术指标,从而能够大大的提高产品的质量。
关键词:水位控制 MCS-8051 EPROM7448 74LS164
Abstract
The development and application of MCU (Micro Control Unit) have made a great change in many fields of modern industrial detect and control. Because of the small scale, low price and high efficiency of MCU, it is widely used in home appliances and industrial control. in the process of producing. Current, voltage, temperature and pressure are usually the parameter to be monitored.
The design of “The water level control system based on MCU of is introduced in this paper. As a typical design in large inertia control system, the design needs the knowledge of automation theories, analog and digital electronics. A digital PID controller is used in the system, which is called DDC (direct digital control) system. The DDC system can not only replace the analog system, but also can realize the plicated rules of control through changing the program of software, not even changing ponent in the electro circuit. It can improve reliability of the whole system. The water level which is controlled by the MCU is not only convenient, advantage but also raise technology Parameter of the system controlled, thus the quality of the product could raise greatly.
Keywords: MCS-8051, EPROM7448, 74LS164, water level control
目录
摘要 I
Abstract II
目录 III
前言 1
1 绪论 3
课题的提出及意义 3
单片机的概述及发展趋势 3
水箱水位控制系统组成及原理 5
水箱水位控制系统组成 5
水箱水位控制系统的原理 5
2 系统硬件的选择及其功能特性 7
MCS-51单片机的结构 7
MCS-51单片机的引脚及其功能 8
MCS-51单片机存储