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    PROCEDE DE CARACTERISATION D'UN DEFAUT NON FRANC DANS UN CABLE
    4.
    发明公开
    PROCEDE DE CARACTERISATION D'UN DEFAUT NON FRANC DANS UN CABLE 审中-公开
    用于表征电缆中的非自由故障的方法

    公开(公告)号：EP3259608A1

    公开(公告)日：2017-12-27

    申请号：EP16706814.7

    申请日：2016-02-12

    申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives

    发明人： SALLEM, Soumaya ,  RAVOT, Nicolas

    IPC分类号： G01R31/08 ,  G01R31/11

    CPC分类号： G01R31/11 ,  G01R31/083

    摘要： The invention relates to a method for characterising a fault affecting a cable, into which a time-limited support reference signal s is fed and a measurement r is made of the reflection of said reference signal s in the cable. Said method is characterised in that said method includes the following steps: identifying (201) a portion of the measurement r that corresponds to a fault, this measurement portion being referred to as the fault signature; generating (202) a modified reference signal s' that has a parameterisable amplitude and that is equal to the sum of said reference signal s and said reference signal s that is inverted and delayed by a parameterisable delay; collectively determining (203) the parameterisable delay values and the parameterisable amplitude values that minimise the error between the modified reference signal s' and the fault signature; deriving (204) therefrom an estimate of the length of the fault starting from the value of said predetermined delay.

    PROCEDE D'ANALYSE D'UN CABLE, BASEE SUR UNE CORRELATION AUTO-ADAPTATIVE, POUR LA DETECTION DE DEFAUTS NON FRANCS
    6.
    发明公开
    PROCEDE D'ANALYSE D'UN CABLE, BASEE SUR UNE CORRELATION AUTO-ADAPTATIVE, POUR LA DETECTION DE DEFAUTS NON FRANCS 审中-公开
    PROCEDE D'ANALYSE D'UN电缆，BASE SUR UNE相关自动适应，POUR LA DETECTION DE DEFAUTS NON FRANCS

    公开(公告)号：EP3201638A1

    公开(公告)日：2017-08-09

    申请号：EP15766826.0

    申请日：2015-09-21

    申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives

    发明人： SALLEM, Soumaya ,  RAVOT, Nicolas

    IPC分类号： G01R31/11

    CPC分类号： G01R31/11

    摘要： Method of analysing a cable in which a reference signal s of temporal support limited to a duration T is injected, characterized in that it comprises the following steps: - the calculation (102) of the inter-correlation, over a sliding window of duration D at least equal to 2T, between said injected reference signal s and a measurement r of the reflection of said reference signal s in the cable, - the normalization (103) of the inter-correlation calculated by a factor depending on the integration of said measurement r of reflection over the same duration D.

    摘要翻译： 分析电缆的方法，其中注入了限制在持续时间T内的时间支持的参考信号s，其特征在于，该方法包括以下步骤： - 在持续时间D的滑动窗口上计算（102）互相关 在所述注入的参考信号s与所述参考信号s在电缆中的反射的测量r之间至少等于2T， - 互相关的归一化（103），其由取决于所述测量 在相同的持续时间内的反射D.

    PROCEDE ET DISPOSITIF D'ANALYSE DE RESEAUX DE CABLES ELECTRIQUES PAR SEQUENCES PSEUDO-ALEATOIRES
    7.
    发明授权
    PROCEDE ET DISPOSITIF D'ANALYSE DE RESEAUX DE CABLES ELECTRIQUES PAR SEQUENCES PSEUDO-ALEATOIRES 有权
    方法和设备分析电缆网络中使用的伪随机序列

    公开(公告)号：EP2082247B1

    公开(公告)日：2010-06-16

    申请号：EP07821594.4

    申请日：2007-10-19

    申请人： Commissariat à l'énergie atomique et aux énergies alternatives

    发明人： RAVOT, Nicolas ,  BONHOMME, Yannick ,  AUZANNEAU, Fabrice

    IPC分类号： G01R31/08 ,  G01R31/11

    CPC分类号： H04L43/50 ,  G01R31/086 ,  G01R31/088 ,  G01R31/11 ,  Y04S40/168

    摘要： The present invention relates to a method and a device for analysing electric cable networks in order to detect and locate defects in cables comprising at least one branching from N secondary sections extend. The method involves injecting into the network at a plurality of injections points Ei pseudo-random sequences of digital signals Pni(t) that are de-correlated from each other, and collecting at one or more observation points Sj the composite time signals Rj(t) generated by the circulation of the outputted sequence and the reflection thereof in the network impedance discontinuity. The method further comprises computing the correlation between the composite signals and the time-offset pseudo-random sequences and searching for the positions of correlation peaks in order to derive the location of the defects in the network while taking into account the signal propagation speed in the network.

    摘要翻译： 该方法涉及将数字信号的伪随机序列引入注入点的网络中，并且获取所发射序列的循环及其网络的阻抗不连续的反射产生的复合信号。 表示所述复合信号的一部分，并且序列之间的相关值的相关函数，计算基于可变延迟。 延迟的特性值的位置，和一个电缆的缺陷位置是确定性的开采基于对每个相关性，其中所述的序列是不相关的海誓山盟的值。 因此独立claimsoft被包括为用于测试的布线网络，包括数字信号的伪随机序列的两个源的装置。