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数字温度的测量与研究设计
作者:admin   发布于:2014-03-05 20:27    文字:【】【】【
 
 数字式温度测量的研究与设计    
 
摘要
  单片机在电子产品中的应用已经越越广泛,在很多电子产品中也用到了温度检测和温度测试。随着温度控制器应用范围的日益广泛和多样性,各种适用于不同场合的智能温度控制器应运而生。电子温度计的出现,给人们的生活带来了很多方便,使人们不管在生活还是工业方面都有了很多便利之处。
随着时代的进步和发展,单片机技术已经普及到我们的生活,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温度计。本设计所设计的温度计与传统的温度计相比,具有读数方便,测温范围广,其输出温度采用数字显示,该设计控制器采用单片机STC89C51,测温传感器采用DS18B20,用3位LCD1602液晶显示以串口传送数据,实现温度显示。
 
关键词:单片机  温度计  数字控制  DS18B20  STC89C51
 
 
 
 
 
 
 
 
 
ABSTRACT
     The application of microcomputer in the electronic products already more and more extensive, in many electronic products also use the temperature detection and temperature testing. As the temperature controller the scope of application of increasingly wide and diversity, all sorts of suitable for different occasions of intelligent temperature controller arises at the historic moment. The emergence of electronic thermometers, give people life a lot in convenient, make people regardless of life or industry has a lot of convenient place.
     As the era of progress and development, microcontroller technology has spread to our life, work research, each domain, has become a more mature technology, this paper introduces a kind of based on single chip microcomputer control thermometer. This design with the traditional design of thermometers, compared the thermometer readings convenient, measuring temperature is wide, the output temperature using digital display, the design adopts single-chip microcomputer controller by STC89C51, temperature sensor DS18B20, LCD1602 by three of the cathode transmit data with serial ports digital tube, realize temperature display.
KeywordsSCM  temperature gauge  digital control  DS18B20  STC89C51
 
 
 
 
 
 
 
 
 
 

目录
第一章 绪论................................................... 1
1.1课题背景及研究意义............................................ 1
1.2国内外现状.................................................... 1
1.3课题的设计目的................................................ 2
1.4课题的主要工作................................................ 3
1.5本文研究内容.................................................. 3
 
第二章 系统概述............................................... 5
2.1方案选择...................................................... 5
2.1.1方案一.................................................. 5
2.1.2方案二.................................................. 6
2.2系统设计原理.................................................. 6
2.3系统组成...................................................... 6
2.4 DS18B20温度传感器与单片机的接口电路..
2.5本章小结...................................................... 8
 
第三章 系统硬件设计........................................... 9
3.1 STC89C51单片机的介绍......................................... 9
3.1.1主要功能、性能参数...................................... 9
3.1.2 89C51单片机的引脚功能说明.............................. 9
3.2 DS18B20的功能简介........................................... 13
3.2.1芯片简介............................................... 13
3.2.2 DS18B20外形和内部结构................................. 13
3.2.3 DS18B20的工作时许..................................... 16
3.2.4 DS18B20的各个ROM命令................................. 17
3.4.3 DS18B20使用中的注意事项............................... 19
3.3 LCD1602液晶显示............................................. 20
3.3.1 LCD1602管脚功能....................................... 20
3.3.2 LCD1602特性........................................... 21
3.3.3 LCD1602操作控制....................................... 21
3.4本章小结..................................................... 22
 
第四章 系统软件设计.......................................... 23
4.1主程序设计................................................... 23
4.2 DS18B20初始化............................................... 24
4.3数据测试..................................................... 24
4.4 仿真图...................................................... 25
4.5本章小结..................................................... 26
 
第五章   Keil与STC单片机烧制................................ 27
5.1 keil........................................................ 27
5.1.1  Keil软件简介......................................... 27
5.1.2  Keil软件调试功能..................................... 27
5.2..STC单片机烧写程序.......................................... 28
 
第六章  Protel制作pcb....................................... 31
6.1  如何进行原理图设计......................................... 31
6.2  原理图连线设计............................................. 32
6.3检查原理图电性能可靠性....................................... 33
6.4  同步设计................................................... 34
6.5建立材料清单................................................. 35
6.6  生成网络表................................................. 36
 
总结........................................................ 37
 
致谢........................................................ 38
 
附件:数字式温度测量的研究与设计相应资料..... 39
原理图.......................................................... 39
生成PCB图...................................................... 41
3D图浏览........................................................ 41
主程序.......................................................... 42
参考文献........................................................ 49


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