基于单片机控制的数字温度测量系统设计.doc

摘 要 随着人们生活水平的不断提高,单片机控制无疑是人们追求的目标之一，它所给人带来的方便也是不可否定的，其中数字温度控制报警就是一个典型的例子，但人们对它的要求越来越高，要为现代人工作、科研、生活、提供更好的更方便的设施就需要从数单片机技术入手，一切向着数字化控制，智能化控制方向发展。 本设计所介绍的数字温度测量系统与传统的温度报警相比，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，该设计控制器使用单片机AT89S51，测温传感器使用DS18B20，用4位共阴极LED数码管实现温度显示,能准确达到以上要求。 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测量系统，本系统可以设置上下报警温度，当温度不在设置范围内时，可以报警。 关键词： 单片机，温度报警， DS18B20，AT89S51 Abstract SCM control is one of people’s pursue with the people’s living standard rising, because SCM control brings more convenience for people. The digital temperature control alarm system is the typical example, but people’s demand become higher and higher. If people want to get more convenience on work, scientific research and life, we should do more work on single-chip computer technology, all toward digital control system, intelligent control direction. With the development of technology, microcontroller technology has spread to our life, work, scientific research and so on. SCM system has become a nature technology, this paper will introduce a method based on single chip microcomputer control digital temperature alarm system, In this paper introduce a new method named digital temperature alarm system ,this system has such advantages compared with traditional temperature system,such as easy reading, large temperature range, accurate measure temperature .Its output temperature using digital display, this design using AT89S51 single-chip microcomputer controller, temperature sensor DS18B20, and with 4 cathode tube LED to realize digital temperature display, with accurately meets the above requirements. This system set high and down temperature alarm value, when the temperature is not in this interval , the alarm system will start to work . Keywords： MCU，temperature alarm， DS18B20，AT89S51 目 录 摘 要 I Abstract II 第1章 绪论 1 1.1 基于单片机温度测量系统的研究背景 1 1.2 基于单片机温度测量系统的发展现状 1 1.3 基于单片机温度测量系统的研究的目的和意义 2 1.4 基于单片机温度测量系统主要研究内容 2 第2章 温度测量系统总体设计方案 4 2.1 温度测量系统设计方案论证 4