基于51单片机的温度测量控制系统设计摘要随着科技的不断进步，在工业生产中温度是常用的被控参数，而采用单片机来对这些被控参数进行控制已成为当今的主流。温度传感器DS18B20具有性能稳定、灵敏度高抗干扰能力强、使用方便等优点，广泛应用于冰箱、空调器、粮仓等日常生活中温度的测量和控制。本文采用51单片机来实现对温度的测量和控制。它的主要组成部分有：AT89S52单片机最小系统，DS18B20测温电路,按键电路、LCD1602显示电路，蜂鸣器报警电路。它可以实时地检测和显示温度，可以设定温度范围，实现对温度的报警和自动控制。关键词：温度；51单片机；DS18B20；测量和控制。-i-ABSTRACTTemperaturesensorDS18B20hasalotofadvantages,suchasstableperformance,highsensitivity,stronganti-interferencecapability,convenienceofuse,etc.Anditwaswidelyusedforthemeasurementandcontroloftemperatureinrefrigerators,airconditioners,barnandotherdailylifeinthemeasurementandcontroloftemperature.Inthisarticle,Weusedasinglechipforrealizingtemperaturemeasurementandalarm.ItwasmainlycomponentofAT89S52chip,DS18B20,keyboardanddisplaycircuit,temperaturealarmandcontrolcircuit.Itrealizenotonlyreal-timedetectionanddisplaytemperature,butalsosettingthetemperaturerangeandthemeasurementandcontroloftemperature.Keywords:Temperature;51MCU;DS18B20;Measurementandcontrol-ii-基于51单片机的温度测量控制系统设计说明目录1引言..................................................................................................................................................................11.1温度测量控制系统设计的背景、发展历史及意义.............................................................................11.2温度测量控制系统的目的....................................................................................................................11.3温度测量控制系统完成的功能............................................................................................................12总体设计方案................................................................................................................................................22.1方案一....................................................................................................................................................22.2方案二....................................................................................................................................................23DS18B20温度传感器简介...............................................................................................................................73.1温度传感器的历史及简介....................................................................................................................73.2DS18B20的工作原理............................................................................................................................73.2.1DS18B20工作时序....................................................................................................................73.2.2ROM操作命令............................................................................................................................83.3DS18B20的测温原理............................................................................................................................93.3.1DS18B20的测温原理................................................................................................................93.3.2DS18B20的测温流程..........................
