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粮仓多点温度控制系统

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目  录

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摘要·· 2

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Abstract· 3 [资料来源:THINK58.com]

第一章      绪 论·· 4

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§1.1系统背景··· 4

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§1.2 系统概述··· 4

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第二章      方案论证·· 5 [资料来源:THINK58.com]

§2.1 传感器部分··· 5

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§2.2主控制部分··· 6 [来源:http://think58.com]

§2.3  系统方案··· 6 [资料来源:http://think58.com]

第三章 硬件电路设计·· 7

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§3.1 电源以及看门狗电路··· 7 [来源:http://think58.com]

§3.2键盘以及显示电路··· 9

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§3.2温度测试电路··· 11 [资料来源:http://www.THINK58.com]

§3.3 串口通讯电路··· 15

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§3.4 整体电路··· 16 [资料来源:http://think58.com]

第四章      软件设计·· 16

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§4.1 概述··· 16 [版权所有:http://think58.com]

§4.2 主程序方案··· 16 [资料来源:http://THINK58.com]

§4.3 各模块子程序设计··· 18 [资料来源:THINK58.com]

第五章      系统调试·· 20 [资料来源:THINK58.com]

§5.1 分步调试··· 20 [资料来源:http://think58.com]

§5.2 统一调试··· 20

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结束语·· 21 [资料来源:www.THINK58.com]

参考文献·· 22 [资料来源:http://THINK58.com]

附录一:软件流程图·· 24 [资料来源:THINK58.com]

附录二:电路原理图·· 25

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致  谢·· 27 [资料来源:http://think58.com]

 

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摘要

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DS18B20是一种可组网的高精度数字式温度传感器,由于其具有单总线的独特优点,可以使用户轻松地组建起传感器网络,并可使多点温度测量电路变得简单、可靠。本文结合实际使用经验,介绍了DS18B20数字温度传感器在单片机下的硬件连接及软件编程,并给出了软件流程图。 [资料来源:www.THINK58.com]

该系统由上位机和下位机两大部分组成。下位机实现温度的检测并提供标准RS232通信接口,芯片使用了ATMEL公司的AT89C51单片机和DALLAS公司的DS18B20数字温度传感器。上位机部分使用了通用PC。该系统可应用于仓库测温、楼宇空调控制和生产过程监控等领域。

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关键字:温度测量;单总线;数字温度传感器;单片机 [资料来源:http://think58.com]

 

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Abstract

    As a kind of high-accuracy digital net temperature sensor,DS18 B20 can be used building a sensor net easily. It can also make the net simple and reliable with it's special 1-wire interface .This paper introduces the application of DS18B20 with single chip processor. [资料来源:http://THINK58.com]

The system is constituted by two parts the temperature measured part and displayed part. The temperature measured part has a RS232 interface. It used AT89C51 of ATMEL company and DS18B20 of DALLAS company .The displayed part uses PC .This system is applied in such domains as warehouse detecting temperature;air-conditioner controlling system in building and supervisory productive process etc.

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Key words:temperature measure;single bus;digital thermometer;single chip processor; [资料来源:www.THINK58.com]

 

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电话:15233862762 [资料来源:THINK58.com]

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Tags:粮仓 多点 温度 控制 系统  [资料来源:http://think58.com]

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