Analysis of Combinations of CRC in Industrial Communication

机译：工业通信中CRC组合的分析

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Cyclic Redundancy Check (CRC) is an established coding method to ensure a low probability of undetected errors in data transmission. In CRC, a checksum (Frame Check Sequence, FCS) is attached to the data. The FCS is a result of a polynomial division by a so called generator polynomial. CRC is widely used in industrial communication where the data are often transmitted through different layers. Each layer has usually its own CRC with its specific generator polynomial. The paper presents results of examinations of such cascades and other combinations of CRC. It is shown that residual error probability can be decreased by choosing the right combination and explained how the residual error probability of already existing cascades has to be determined in order to reduce the number of worst case assumptions in the overall safety proof.The combinations are illustrated by means of examples.

机译：循环冗余校验（CRC）是一种既定的编码方法，可确保数据传输中未检测到错误的可能性很小。在CRC中，校验和（帧校验序列，FCS）被附加到数据中。 FCS是多项式除以所谓的生成多项式的结果。 CRC被广泛用于工业通信中，其中数据通常通过不同的层进行传输。每个层通常具有自己的CRC和特定的生成器多项式。本文介绍了这种级联和其他CRC组合的检查结果。结果表明，通过选择正确的组合可以降低残余误差概率，并说明了如何确定已经存在的级联的残余误差概率，以减少总体安全证明中最坏情况假设的数量。举例说明。

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来源
《International Conference on Computer Safety, Reliability, and Security(SAFECOMP 2007); 20070918-21; Nuremberg(DE)》|2007年|P.329-341|共13页
会议地点 Nuremberg(DE)
作者
Tina Mattes; Joerg Pfahler; Frank Schiller; Thomas Honold;
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作者单位

Technical University Munich, Institute of Information Technology in Mechanical Engineering, Boltzmannstr. 15, D-85748 Garching near Munich, Germany;

Technical University Munich, Centre for Mathematical Sciences (M11), Boltzmannstr. 3, D-85748 Garching nea;

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会议组织
原文格式 PDF
正文语种 eng
中图分类安全保密;
关键词
cyclic redundancy check; residual error probability; safety-critical communication;

机译：循环冗余校验;残差概率;安全关键通信;

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Analysis of Combinations of CRC in Industrial Communication

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