| 集中供热微机测控系统中的多级通信技术 |
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| 引用本文： | 曹玉强,付庆华.集中供热微机测控系统中的多级通信技术[J].电子与自动化,1995,24(5):14-17. |
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| 作者姓名： | 曹玉强 付庆华 |
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| 作者单位： | 山东工业大学自动化工程系 |
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| 摘 要： | 根据集中供热采用微机控制的需要，设计了一种光电隔离的远距离通信接口电路，实现了ＰＣ／３８６与８０３１单片机间的三级通信。该微机测控系统中，从巡测仪到换热站及换热站到上位机间最远通信距离为５ｋｍ．实用通信波特率为１１０波特。文章介绍了测控系统的硬件结构和软件编程方法。
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| 关 键 词： | 城市 集中供热 多级通信 微机测控系统 |
The multilevel Communication Technology of Micrecomputer Measure & Control System in Central Heating |
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| Authors: | Cao Yuqiang |
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| Affiliation: | Eleclronics & Automation. |
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| Abstract: | According to the need of microcomputer control in central heating,a distant communication interface circuit with optical isolation is designed, which can realrze three-level communication between PC/386 and 8031 microcomputer.The longest communication distance from the telemeter to beat-exchanger station and from heat-exchanger station to the main computer is 5 km.The hardware construction and software programming ways are introduced here also. |
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| Keywords: | total distributed control system multilevel computer communication central heating |
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