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基于单片机的仓储温度测控系统的设计.doc
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基于单片机的仓储温度测控系统的设计.doc
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毕业设计说明书
基于单片机的仓储温度测控系统的设计
学 院:
专 业:
学生姓名:
学 号:
指导教师:
2023 年 6 月
![](https://csdnimg.cn/release/download_crawler_static/87708921/bg2.jpg)
摘 要
温度监测与控制是个生产工艺流程极为重要的环节,自古以来就受到人们的
关注,与人们的生活息息相关。近年来,随着社会的发展,人们对温度监控的精
度以及范围等有了更高层次的规定,无论是在工农业生产或科学研究方面,对温
度监控都尤为重要。因此对温度监控的研究设计十分必要。
本课题介绍了以 STC89C52 单片机为控制核心,DS18B20 作为传感器的集
采集、解决、显示、自动控制为一体的仓储温度测控系统。整个系统中,以 PC
作为上位机监控模块,STC89C52 单片机作为下位机控制模块,上位机与下位机
数据传输与交流以串口通信的方式进行。本文采用智能温度传感器 DS18B20 进
行温度的采集与转换,其具有测温范围宽,精度高等优点,同时具有单总线接口,
从而使得电路设计更加简洁。STC89C52 单片机具有运算速度快,解决能力强等
特点,使其在温度测控系统中成为一个极为重要的组成部分,随着着电子技术的
发展,运用单片机进行温度测控,将成为发展趋势。该系统同时设立温度显示模
块与报警装置,可人为地控制温度上、下限,可自动调节温度,使用户可以更好
的对温度进行控制。
关键词:单片机、DS18B20、温度监控
![](https://csdnimg.cn/release/download_crawler_static/87708921/bg3.jpg)
Abstract
Temperature monitoring and control is a very important part of the production
process, since ancient times by people concerned with people's lives. In recent years,
with the development of society, people on the accuracy of temperature monitoring
and scope have higher level requirements, both in industrial and agricultural
production, or scientific research, are particularly important for temperature
monitoring. So the temperature monitoring study design is necessary.
This topic introduces the STC89C52 microcontroller core, DS18B20 sensor set
as the collection, processing, display, automatic control as one of the storage
temperature monitoring system. Throughout the system, the PC as a PC monitor
module, STC89C52 microcontroller as the next-bit machine control module, the PC
and the next crew to serial data transmission and exchange of communication manner.
In this paper, intelligent sensor DS18B20 temperature acquisition and conversion,
which has a wide temperature range, high precision, but also has a single bus interface,
which makes circuit design more concise. STC89C52 microcontroller with a
computing speed, processing power and other characteristics, so that in the
temperature measurement and control systems to become a very important part, along
with the development of electronic technology, the use of single-chip temperature
measurement and control, will become a trend. The system is also set temperature
display module and alarm device, can artificially control the temperature, the lower, it
can automatically adjust the temperature, so that users can better control the
temperature.
![](https://csdnimg.cn/release/download_crawler_static/87708921/bg4.jpg)
Keywords: microcontroller, DS18B20, temperature monitoring.
![](https://csdnimg.cn/release/download_crawler_static/87708921/bg5.jpg)
目 录
摘 要..............................................................I
Abstract...........................................................II
目 录............................................................III
第一章 绪 论.......................................................1
1.1 课题背景及意义 .................................................1
1.2 国内外研究现状 .................................................1
1.3 研究内容 .......................................................2
1.3.1 设计指标与参数 .............................................2
1.3.2 设计目的 ...................................................2
2.1 方案选择 .......................................................3
2.2 方案论证 .......................................................4
2.3 系统工作原理概述 ...............................................5
第三章 硬件电路设计.................................................6
3.1 单片机的设计 ..................................................6
3.1.1 单片机的选择 ...............................................6
3.1.2 STC89C52 单片机功能特性 ....................................6
3.1.3 引脚功能(摘自参考目录中《单片机原理及应用》一书) ..........7
3.2 温度传感器的设计 ..............................................9
3.2.1 DS18B20 温度传感器的特点 ...................................9
3.2.2 DS18B20 引脚定义 ...........................................9
3.2.3 DS18B20 工作原理 ..........................................10
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