基于单片机的温度远程显示系统的设计毕业论文40p.docVIP

摘 要 在我国经济飞速前进的同时，国民的生活质量也有显著提升，大家更加关注环境污染和保持自身健康。温度传感器在很多方面也得广泛的应用。如在冶金、钢铁等行业。在现行的工业环境下有百分之八十以上的工业都需要直面作业温度这个严肃的问题。本设计凭借ATMEL企业的一款。AT89S52为核心。可以完成对当前环境：温度；采集处理；显示；报警等功能。本设计使用锂电池。拥有很好的携带与适应性，而且可以用LCD1602屏显示操作。具备较好的人机对话设计。并且设计了声光报警。完成参数超标情况下及时报警。温度检测器体积轻巧；能耗小，使用容易。基于AT89S52地温度检测装置使用了计算机；自动测试；微电子与自动控制技术。他拥有着：1、信号采集方便；2、简单灵活性大；3、能提高测试温度技术指标。 关键词：AT89S52；温度检测系统； Abstract In our countrys economic rapid progress at the same time, the national quality of life were significantly improved, people pay more attention to the pollution of the environment and maintain their own health. The temperature sensor is widely used in many areas. Such as metallurgy, iron and steel industry. More than eighty percent of the industry needs to face the work temperature of the serious problems in the current industry environment. The design of an enterprise with ATMEL. AT89S52 as the core. Can be completed on the current environment: temperature; acquisition and processing display alarm and other functions;. This design uses a lithium battery. With portable and good adaptability, and can use the LCD1602 screen display operation. Have good man-machine dialogue design. And designed the sound and light alarm. Under the condition of complete parameter overproof alarm. The temperature detector has the advantages of small volume low power consumption, easy to use. AT89S52 temperature detection device based on the use of the computer; automatic test; micro electronics and automatic control technology. He has: 1, the signal acquisition and convenient; 2, simple and flexibility; 3, to raise the temperature of the test technical index. Keywords: AT89S52; temperature detection system;目录 第一章：绪论 2 1.1课题的目的及意义 2 1.2国内外的研究状况 3 1.3 本课题的研究内容与目标 3 第二章：总体设计 4 第三章：硬件设计部分 5 3.1系统硬件结构及原理 5 3.2 AT89S52单片机与其扩展 6 3.3传感器的选用 7 3.3.1 DS18B20的特性 7 3.3.2 DS18B20的结构 8 3.3.3 DS18B20在温度测量方面的应用 10 3.4前置放大滤波电路的设计 11 3.5模数转换电路的设计 12 3.6 复位电路设计 13 第四章：软件设计及调试 14 4.1单片机软件设计 14 4.2读温度子程序 15 4.3 温度比较报警子程序 16 4.4 RS-485串口通信模块程序设计 17