| 单总线测温系统 |
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| 引用本文： | 董炜,王俊杰,杨士元.单总线测温系统[J].自动化仪表,2005,26(6):27-30. |
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| 作者姓名： | 董炜 王俊杰 杨士元 |
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| 作者单位： | 清华大学自动化系检测与电子技术研究所,北京,100084 |
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| 摘 要： | 介绍了单总线系统的结构、原理和技术特点,阐述了单总线协议、操作流程以及DS18B20数字式温度传感器的功能结构,实现了一种基于RS-232串口的单总线适配器并给出了设计原理和电路图,最后给出了一种简单高效的单总线器件搜索算法。
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| 关 键 词： | 单总线 数字式温度传感器 iButton DS18B20 |
| 修稿时间： | 2004年4月27日 |
1-Wire System for Temperature Measurement |
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| Dong Wei,WANG Junjie,YANG Shiyuan.1-Wire System for Temperature Measurement[J].Process Automation Instrumentation,2005,26(6):27-30. |
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| Authors: | Dong Wei WANG Junjie YANG Shiyuan |
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| Affiliation: | Dong Wei Wang Junjie Yang Shiyuan |
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| Abstract: | In this paper, the structure and principle as well as technical characteristics of 1-Wire System are introduced, and the protocol and operation flow of 1-Wire System as well as the function and structure of DS18B20 digital thermometer are described. A 1-Wire adaptor based on RS-232 serial communication port is implemented, its principle of design and circuit diagram are given. Finally, the simplified and effective search arithmetic for 1-Wire components is given. |
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| Keywords: | 1-Wire System Digital thermometer iButton DS18B20 |
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