基于单片机温控制系统的设计.docVIP

宁夏大学新华学院本科学位论文 PAGE 18 随着微机测量和控制技术的迅速发展与广泛应用，以单片机为核心的温度采集与控制系统的研发与应用在很大程度上提高了生产生活中对温度的控制水平。本设计论述了一种以STC89C52单片机为主控制单元，以DS18B20为温度传感器的温度控制系统。该控制系统可以实时存储相关的温度数据并记录当前的时间。系统设计了相关的硬件电路和相关应用程序。硬件电路主要包括STC89C52单片机最小系统，测温电路、实时时钟电路、LCD液晶显示电路以及通讯模块电路等。系统程序主要包括主程序，读出温度子程序，计算温度子程序、按键处理程序、LCD显示程序以及数据存储程序等。 关键词：STC89C52单片机；DS18B20；显示电路 Abstract Along with the computer measurement and control technology of the rapid development and wide application, based on singlechip temperature gathering and control system development and application greatly improve the production of temperature in life level of control. This design STC89C52 describes a kind of mainly by MCU control unit, for temperature sensor DS18B20 temperature control system. The control system can real-time storage temperature data and record related to the current time. System design related hardware circuit and related applications. STC89C52 microcontroller hardware circuit include temperature detection circuit smallest system, and real-time clock circuit, LCD display circuit, communication module circuit, etc. System programming mainly include main program, read temperature subroutine, the calculation of temperature subroutines, key processing procedures, LCD display procedures and data storage procedures, etc. Key words: STC89C52 microcontroller; DS18B20; display circuit 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc387483637 第1章 前言 PAGEREF _Toc387483637 \h 1 HYPERLINK \l _Toc387483638 1.1 研究背景 PAGEREF _Toc387483638 \h 1 HYPERLINK \l _Toc387483639 1.2 研究目的和意义 PAGEREF _Toc387483639 \h 1 HYPERLINK \l _Toc387483640 1.3 未来发展 PAGEREF _Toc387483640 \h 1 HYPERLINK \l _Toc387483641 第2章 系统的总体设计 PAGEREF _Toc387483641 \h 3 HYPERLINK \l _Toc387483642 2.1 系统设计框架 PAGEREF _Toc387483642 \h 3 HYPERLINK \l _Toc387483643 2.2 STC89C52单片机简介 PAGEREF _Toc387483643 \h 3 HYPERLINK \l _Toc387483644 2.2.1 STC89C52单片机时序 PAGEREF _Toc387483644 \h 3 HYPERLINK \l _Toc387483645 2.2.2 STC89C52单片机引脚介绍 PAGEREF _Toc387483645 \h 4 HYPERLI