| 基于RS485接口的煤矿井下通信总线的研究 |
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| 引用本文： | 阎显勇,宋建成.基于RS485接口的煤矿井下通信总线的研究[J].工矿自动化,2007(3):77-79. |
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| 作者姓名： | 阎显勇 宋建成 |
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| 作者单位： | 太原理工大学电气与动力工程学院,山西,太原,030024;太原理工大学电气与动力工程学院,山西,太原,030024 |
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| 摘 要： | 详细分析了影响RS485总线通信质量的各种因素,并根据煤矿井下的特殊环境设计了满足本质安全特性要求的RS485接口电路。通过AT89C52的单片机系统与PLC之间的通信,进一步验证了该设计的正确性、合理性和实用性。
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| 关 键 词： | 矿井 串行通信 接口电路 RS485 PLC |
| 文章编号： | 1671-251X（2007）03-0077-03 |
| 修稿时间： | 2007-01-12 |
Study of Communication Bus Based on RS485 Interface Used in Coal Mine Underground |
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| YAN Xian-yong,SONG Jian-cheng.Study of Communication Bus Based on RS485 Interface Used in Coal Mine Underground[J].Industry and Automation,2007(3):77-79. |
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| Authors: | YAN Xian-yong SONG Jian-cheng |
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| Abstract: | The various factors which influence on the communication quality of RS485 bus had been(analyzed) in details,and an intrinsically safe RS485 interface circuit was designed according to conditions in coal mine underground in this paper. The exactness,rationality and practicability of the communication bus were verified by the communication between single-chip microcomputer AT89C52 and PLC. |
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| Keywords: | mine serial communication interface circuit RS485 PLC |
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