| 1553B总线控制系统时间同步设计 |
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| 引用本文： | 黄波.1553B总线控制系统时间同步设计[J].航天控制,2008,26(6). |
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| 作者姓名： | 黄波 |
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| 作者单位： | 北京航天自动控制研究所,北京,100854 |
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| 摘 要： | 高准确度的时间同步是实时性现场总线控制系统正确运行的基础.本文介绍了几种现场总线系统软硬件时间同步机制,针对1553B总线控制系统,通过深入分析总线协议芯片的工作时序,利用芯片内部的时标寄存器,采用软件补偿的方法,设计了一种准确度与软件和网络延迟无关的高准确度、低通讯开销的软件时间同步机制.试验表明,这种同步机制准确度可达到μs数量级.
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| 关 键 词： | 现场总线控制系统 时间同步 1553B数据总线 |
A Time Synchronization Mechanism for 1553B Data Bus Control System |
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| HUANG Bo.A Time Synchronization Mechanism for 1553B Data Bus Control System[J].Aerospace Control,2008,26(6). |
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| Authors: | HUANG Bo |
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| Institution: | HUANG BoBeijing Aerospace Automatic Control Institute,Beijing 100854,China |
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| Abstract: | The precise synchronization mechanism is a key issue of the real-time field bus control system.The characteristic of the existing time synchronization mechanisms is summarized in this paper.Subsequently,a precise software synchronization mechanism with low communication consumption by time compensation according to the real-time communicating value of the bus protocol chipset time-tag register for 1553B data bus is developed.Finally,the validation is taken and the performance is evaluated. |
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| Keywords: | Filed bus control system Time synchronization 1553B data bus |
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