基于89s52单片机花圃温度控制系统.doc

***** University ****毕业设计（论文） 基于89s52单片机花圃温度控制系统 学 院： 电子与信息工程学院 专 业： 电子信息工程 学 号： *********** 学生姓名： ****** 指导教师： ************ （职称） 二 〇 一 二 年 六 月  摘 要 本文主要采用流行的单片机技术、自动控制技术（正动作和逆动作技术）对温度控制系统进行应用设计，配以DS18B20数字温度传感器，该温度传感器可自行设置温度上下限，并通过1602液晶显示 Bed Temperature Control System Based on 89s52 Single-chip Processor ******** Abstract This paper mainly uses the popular computer technology, automatic control technology (positive action and reverse action technology) application design of temperature control system , meeting with DS18B20 digital temperature sensor, and the temperature sensor can be used to set upper and lower temperature, and display real-time temperature data by 1602 liquid crystal. Single chip microcomputer is used to compare the temperature of the input signal with the temperature of the upper and lower limit, thus to judge whether to open the relay. The selection of design in detail introduces the temperature control system design scheme, the composition of hardware circuit, the system working principle, software program design, system debugging and testing, test results show that the designed system can achieve predetermined functions, test all the performance indexes meet the design requirements. Keywords: Intelligent garden; Temperature control; Automatic technology; 目 录 1．选题背景 1 2．选题意义.......................................................................................................................................1 3．选题要求..................................................................................................................................... 1 4．方案比较和选择..................................................................................................