[工学]基于单片机的乳化物干燥过程控制系统设计 毕业设计.doc

基于单片机的乳化物干燥过程控制系统设计 摘 要 对乳化物进行干燥是为了使物料便于加工、运输、驻藏和使用。本设计是以 AT89S51单片机为核心的温度控制系统。温度信号由温度芯片DS18B20采集并以 数字信号的方式传送给单片机,该控制系统的硬件部分包括温度检测电路、温 度控制电路、PC机与单片机串口通讯电路和一些接口电路 。单片机通过对信号进 行相应处理从而实现温度控制的目的。软件设计部分尤为重要在这里采用模块 化结构主要模块有数码管显示程序、键盘扫描及按键处理程序、温度信号处理 程序、超温报警程序、加热程序。经过调试实现了系统的智能化控制使乳化物 干燥过程达到较好的效果。 关键词单片机控制温度干燥 本页完 第 2 页 共 53 页 MICROCONTROLLER-BASED EMULSION DRYING PROCESS CONTROL SYSTEM DESIGN ABSTRACT Drying of the emulsion is to make the material easy to process, transport, and use of Tibet.This design is based on AT89C51 microcomputer as the core of the temperature control system. The temperature signal by the temperature chip DS18B20 gathering, and transmits by digital signals way for the monolithic integrated circuit. In the article introduced this control systems hardware part, including:Temperature examination electric circuit, temperature-control circuit, PC machine and monolithic integrated circuit serial port communication channel and some interface circuit. The monolithic integrated circuit through carries on corresponding processing to the signal, thus realizes the temperature control goal.he software design is especially important, uses the modular structure in here, the main module includes: Nixietube display sequence, keyboard scanning and pressed key disposal procedure, temperature signal processing procedure, black -white control procedure, excess temperature warning procedureheating procedure.After commissioning,realized the intelligent control syatem,make emulsify drying process to achieve better effect. Keywords:SCMControlTemperature,Drying 本页完 第 3 页 共 53 页 目 录 1 绪论 错误未定义书签。1 1.1本课题研究的对象、背景、现状及意义 错误未定义书签。1 1.1.1背景及意义 错误未定义书签。1 1.1.2现状 错误未定义书签。1 1.1.3必威体育精装版研究动态 错误未定义书签。1 1.1.4发展趋势 2 1.1.5被控对象的介绍 3 1.1.6单片机的发展及温度控制系统 3 2系统的总体方案设