《数字温度计设计》毕业设计.doc

南 昌 工 程 学 院 毕 业 设 计 (论 文) 机械与电气工程学院 系（院）电气自动化技术 专业 毕业设计（论文）题目 数字温度计设计 学生姓名 班 级 学 号 指导教师 完成日期 2011 年 6 月 12 日 摘要 随着时代的进步和发展，单片机技术已经普及到我们生活，工作，科研，各个领域，已经成为一种比较成熟的技术,本文将介绍一种基于单片机控制的数字温度计，本设计所介绍的数字温度计与传统的温度计相比，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所，或科研实验室使用，该设计控制器使用单片机AT89S51，测温传感器使用DS18B20，本温度计可调整显示日期、时间，可设定最低、最高温度报警值。测量温度超过设定的温度上、下限，启动蜂鸣器和指示灯报警。温度显示稳定。实现温度显示,能准确达到以上要求。 关键词： AT89S51 数字温度计 DS18B20 ABSTRACT Along with the time progress and the development, the monolithic integrated circuit technology already popularized to us lives, the work, the scientific research, each domain, will already become one kind of quite mature technology, this article introduced one kind the digital thermometer which controlled based on the monolithic integrated circuit.This design introduced the digital thermometer and the traditional thermometer compares, has the reading to be convenient, measured the warm scope is broad, measured warm accurate, its output temperature uses the numeral to demonstrate, mainly uses in to measured the warm quite accurate place, or the scientific research laboratory use, this design controller use monolithic integrated circuit AT89S51, measured the warm sensor uses DS18B20, this thermometer may adjust the demonstration date, the time, may establish, the maximum temperature lowly reports to the police the value.The survey temperature surpasses the hypothesis the temperature bound, starts the buzzer and the indicating lamp reports to the police. The temperature demonstration is stable. The realization temperature demonstrated that, can above achieve accurately requests. KeyWord: AT98s51; thermometer; DS18B20 目 录 摘要 I ABSTRACT II 第1章 绪论 1 1.1 引言 1 1.2数字温度计设计方案论