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Research on the Reliability of the Pyxos Network

机译：Pyxos网络的可靠性研究

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摘要

The LonWorks technology is now wildly used in buildings, industrial facilities and many other fields. Its interoperability and reliability have been proven extremely robust. The Pyxos, the LonWorks platform's bottom network, extends the LonWorks into I/O buses and sensors networks. The paper mainly talks about the reliability of the Pyxos network. Firstly, the LonWorks and Pyxos technologies are viewed and the three layer's structure is introduced. Then the reliability of Pyxos network is illuminated. We do an experiment to prove the loop topology immune from wire-broken errors. But the results show that it is not our expectation. So we design a redundant network structure, called one station and double lines redundant system, to solve the problem. With this module, the network can not be paralyzed, even if one cable line breaks off. Finally, the reliability of this structure is analyzed detailed using Markov algorithm model. The curve of the reliability is simulated also, taking the system's reparability into account. So we draw this conclusion: the reliability of the redundant system is much higher than that of a single network line, and with the system's reparability rate rising, the reliability is becoming higher distinctly.
机译：现在，LonWorks技术已广泛用于建筑物，工业设施和许多其他领域。它的互操作性和可靠性已被证明非常强大。 Pyxos是LonWorks平台的底层网络，将LonWorks扩展到I / O总线和传感器网络。本文主要讨论Pyxos网络的可靠性。首先，介绍了LonWorks和Pyxos技术，并介绍了三层结构。然后阐明了Pyxos网络的可靠性。我们进行了一项实验，以证明环路拓扑不受断线错误的影响。但是结果表明这不是我们的期望。因此，我们设计了一种冗余网络结构，称为单站和双线冗余系统，以解决该问题。使用此模块，即使一根电缆断开，网络也不会瘫痪。最后，使用马尔可夫算法模型详细分析了该结构的可靠性。还考虑了系统的可修复性，对可靠性曲线进行了模拟。因此，我们得出以下结论：冗余系统的可靠性远高于单个网络线路，并且随着系统的可修复性比率的提高，可靠性也明显提高。

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