| RS-485总线通信技术在红外线报警系统中的应用 |
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| 引用本文： | 罗晴兰.RS-485总线通信技术在红外线报警系统中的应用[J].江苏电器,2009(5):27-30. |
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| 作者姓名： | 罗晴兰 |
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| 作者单位： | 苏州大学电子信息学院;江苏城市职业学院武进校区信息工程系; |
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| 摘 要： | 介绍了以PC机和AT89C52单片机组成主从式多机方式的红外线报警通信系统,该系统采用串行通信能力较强的RS-485通信方式完成多个下位机向上位机传递信息的任务,给出了各个模块的相关电路图,以及各部分工作的软件设计方法和要求。应用结果表明,RS-485总线通信技术完全可以满足于红外报警系统的需要。
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| 关 键 词： | 热释电红外传感器 RS-485总线 AT89C52单片机 |
Application of RS-485 Bus Communication Technology in Infrared Alarm System |
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| Authors: | LUO Qing-lan |
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| Affiliation: | 1 School of Electronic Information;Soochow University;Suzhou 215021;China;2 Department of Information Engineering;Jiangsu City Vocation College Wujin Campus;Changzhou 213161;China |
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| Abstract: | Introduction was made to an infrared alarm communication system composed of PC and AT89C52, which is a master-slave multimachine mode system. The system adopted RS-485 with strong serial communication ability as communication method to fulfill messages transmission from multiple slave computers to master computers. The related circuit for each module, as well as software design method and requirements, was given. Application results show that RS-485 bus communication technology can fully meet the demands of... |
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| Keywords: | pyroelectric infrared sensor RS-485 bus AT89C52 |
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