基于单片机的温度控制系统设计和实现本科学位论文

中文摘要 本设计主要从硬件和部分软件介绍了 MCS-51 单片机温度控制系统的设计思路，简单说明如何实现对温度的控制，并对硬件原理图和程序框图作了简洁的描述。还介绍了在单片机控制系统的软硬件设计中的一些主要技术关键环节，该系统主要以 8051 单片机为核心，由温度检测电路，模、数转换电路，过零检测电路, 报警指示电路，光电隔离与功率放大电路，等。但用 AT89C51 单片机设计的温度检测电路是本次设计的主要内容，是整个单片机温度控制系统设计中不可缺少的一部分，该系统对温度进行实时采集与检测。本设计介绍的单片机自动控制系统的主要内容包括：系统方案、元器件选择、系统理论分析、硬件设计、部分软件设计及主要技术性能参数。关键词：单片机；温度传感器；温度检测；温度控制；PID 算法Title: Based on Monolithic Integrated Circuit's Temperature Control System's Design ABSTRACTThe design of single-chip’s temperature control system is introduced from hardware and some software,and simply explains how to actualize the temperature control.The hardware principle and software case fig are described.Some important techniques in a design scheme of the hardware and the software of the temperature control by single-chip microcomputer are introduced.The system mostly takes 8051 single-chip microcomputer as core,it is structured by temperature testing circuit,A/Dswitch circuit,zero passage testing circuit,waring and indication circuit,optical-electrical isolation and power amplifier circuit and so on. The main content of this design is temperature testing circuit that uses AT89C51 sigle-chip microcomputer.It is a part of the whole design that cannot be lacked.The system is used to collect and control temperature in real time.The temperature automatic control system based on single-chip microcomputer is described in the article including system scheme, parts of an apparatus choice,theoretical analysis,the design of hardware and some software, and main tech...