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    • 3. 发明专利
    • Device and method of measuring contact voltage of current collecting device and trolley wire
    • 测量电流收集装置和拉线的接触电压的装置和方法
    • JP2013183560A
    • 2013-09-12
    • JP2012046597
    • 2012-03-02
    • Railway Technical Research Institute公益財団法人鉄道総合技術研究所
    • YAMASHITA CHIKARAMATSUMURA SHUMORIMOTO HIROMINEZU KAZUYOSHI
    • B60L5/24
    • PROBLEM TO BE SOLVED: To provide a contact voltage measuring device of a current collecting device and a trolley wire that measures contact voltage between the current collecting device and the trolley wire with a high level of accuracy and a contact voltage measuring method.SOLUTION: A contact voltage measuring device has: current collecting devices (24, 24A, 24B, 24C) that electrically contact with a trolley wire (12), collect current collection current from the trolley wire (12), and supply the current collection current to a main circuit of an electric rail vehicle; and electrodes for measuring (44, 44A, 38) that are electrically insulated from the main circuit, while coming in electrically contact with the trolley wire (12), and measures the potential difference of the current collecting devices (24, 24A, 24B, 24C) with the electrodes for measuring (44, 44A, 38) as the contact voltages of the current collecting devices (24, 24A, 24B, 24C) and the trolley wire (12).
    • 要解决的问题:提供以高精度和接触电压测量方法测量集电装置和电车线之间的接触电压的集电装置和电车线的接触电压测量装置。解决方案:A 接触电压测量装置具有:与电车线(12)电接触的集电装置(24,24A,24B,24C),收集来自电车线(12)的集电电流,并将电流收集电流提供给主 电车轨道; 以及用于测量(44,44A,38)的电极,其与所述主电路电绝缘,同时与所述电车线(12)电接触,并且测量所述集电装置(24,24A,24B, 24S,24B,24C)和电车线(12)的接触电压作为测量用电极(44,44A,38)。
    • 6. 发明专利
    • System, apparatus, method and program for locating fault point
    • 系统,设备,位置故障点的方法和程序
    • JP2011196819A
    • 2011-10-06
    • JP2010063879
    • 2010-03-19
    • Kinkei System CorpRailway Technical Research Institute公益財団法人鉄道総合技術研究所株式会社近計システム
    • AGUI KOJIUTSUKA TETSUOMORIMOTO HIROMIMORITA TAKESHIJO ARITSUNEMAKIMURA TATSUYAOHASHI YOSHIKAZU
    • G01R31/08H02H7/26
    • Y04S10/522
    • PROBLEM TO BE SOLVED: To provide a fault point locating system capable of simply and accurately locating a fault point by more correctly estimating a rising point of a surge waveform even if a noise level varies or a rise of the surge waveform is gentle.SOLUTION: A noise level maximum value detecting part obtains the noise level maximum value Vn of a noise level maximum value detecting section Tn of differential absolute value data. Then, a surge waveform peak point detecting part detects a peak point P1 which is the first maximum point of a surge waveform peak point detecting section Tp. Then, a surge waveform arrival time computing part detects a point P2 which first becomes lower than Vn in a reverse direction (direction going back in time) from a point Pwhich is the starting point of the surge waveform peak point detecting section Tp to a 400-th point. The surge waveform arrival time computing part makes a zero cross point P0 of lines connecting the peak points P1 and P2 as the rising point of the surge waveform.
    • 要解决的问题:提供一种故障点定位系统,即使噪声电平变化或浪涌波形的上升温和,通过更正确地估计浪涌波形的上升点,能够简单准确地定位故障点。解决方案: 噪声电平最大值检测部分获得差分绝对值数据的噪声电平最大值检测部分Tn的噪声电平最大值Vn。 然后,浪涌波形峰值点检测部分检测作为浪涌波形峰值点检测部分Tp的第一最大点的峰值点P1。 然后,浪涌波形到达时间运算部从从突发波形峰值点检测部Tp的起点的点P到400的方向(时间方向回溯),检测出首先变得低于Vn的点P2 点。 浪涌波形到达时间计算部分将连接峰值点P1和P2的线路的零交叉点P0作为浪涌波形的上升点。