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    • 1. 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。
    • 2. 发明专利
    • Power system accident waveform data search device, and recording medium
    • 电力系统事故波形数据搜索设备和记录介质
    • JP2012249395A
    • 2012-12-13
    • JP2011118406
    • 2011-05-26
    • Tokyo Electric Power Co Inc:The東京電力株式会社Kinkei System Corp株式会社近計システム
    • INO KOJINISHI TETSUYAOURA YOSHIFUMIFUJIUCHI SHIGEYOSHITOMOJIRI YUSUKETSUJI NARIAKIYAMAGUCHI YASUTAKAOHASHI YOSHIKAZU
    • H02J3/00G01R29/00H02J13/00
    • Y02E60/7869Y04S40/128
    • PROBLEM TO BE SOLVED: To solve a problem that estimating a cause of a power system accident and finding measures therefor is time consuming even if a skilled engineer performs the estimation and finding, relying on the engineer's skills to search past data.SOLUTION: A power system accident waveform data search device comprises: a data storage unit 21 having a database in which at least a classification result of accident waveform data about accidents of a power system is stored for each accident; and a data search unit 24 which searches data corresponding to at least a classification result of accident waveform data of an accident designated as a search condition, from classified data 21b in the data storage unit 21. The classified data 21b stored in the data storage 21 is a result of classifying the accident waveform data on the basis of a predetermined rule and is distinguished on the basis of a physical condition of the power system corresponding to a phenomenon of the designated accident. When searching from the classified data 21b, the data search unit 24 performs search by narrowing down a search object by utilizing the distinction based on the physical condition depending on the phenomenon of the designated accident.
    • 要解决的问题:为了解决估计电力系统事故原因及其发现措施的问题,即使熟练的工程师进行估计和查找,依靠工程师的技能来搜索过去的数据也是耗时的。 电力系统事故波形数据搜索装置包括:具有数据库的数据存储单元21,其中针对每次事故存储关于电力系统事故的事故波形数据的至少分类结果; 以及数据搜索单元24,从数据存储单元21中的分类数据21b中搜索与至少指定为搜索条件的事故的事故波形数据的分类结果相对应的数据。存储在数据存储器21中的分类数据21b 是基于预定规则对事故波形数据进行分类的结果,并且基于与指定事故的现象对应的电力系统的物理状况来区分。 当从分类数据21b进行搜索时,数据搜索单元24通过利用根据指定事故的现象的身体状况的区别来缩小搜索对象来进行搜索。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • フーリエ解析による周波数測定方法および周波数測定装置
    • 频率测量方法和使用傅立叶分析的频率测量装置
    • JP2015036635A
    • 2015-02-23
    • JP2013167665
    • 2013-08-12
    • 株式会社近計システムKinkei System Corp
    • OHASHI YOSHIKAZUJO ARITSUNEOHASHI HIDEYAMAKIMURA TATSUYAOURA YOSHIFUMI
    • G01R23/16
    • 【課題】交流波形の周波数を高速かつ高精度に測定できるフーリエ解析による周波数測定方法を提供する。【解決手段】フーリエ変換部4bで得られた複素周波数成分の絶対値が最大のものを中心とする中心複素周波数成分と、その中心複素周波数成分に隣接する低周波数側および高周波数側にあってかつ窓関数の持つ周波数成分の個数と少なくとも同じ個数の隣接する低周波数側および高周波数側複素周波数成分とを求める周波数演算部4cと、周波数演算部4cで得られた周波数FXと減衰発散係数FYの有効性を判定する判定部4dとを有する。【選択図】図1
    • 要解决的问题:提供使用能够快速且准确地测量AC波形的频率的傅立叶分析的频率测量方法。解决方案:频率测量装置包括频率计算单元4c和确定单元4d。 频率计算单元4c计算以傅里叶变换单元4b获得的复数频率分量的绝对值中的最大绝对值的中心为中心的中心复频分量,并计算相邻的低频侧和高频率分量, 至少与包括在窗口函数中的频率分量的数量一样多的复合频率分量。 低频侧和高频侧的复频分量位于与中心复频分量相邻的低频侧和高频侧。 确定单元4d确定由频率计算单元4c获得的频率Fand阻尼发散系数Fth的有效性。
    • 4. 发明专利
    • Fault point location method of transmission line, fault point location device of transmission line, and fault point location program
    • 变速箱故障点定位方法,变速箱故障点定位装置及故障点位置方案
    • JP2006242815A
    • 2006-09-14
    • JP2005060411
    • 2005-03-04
    • Enegate:KkKansai Electric Power Co Inc:TheKinkei System Corp株式会社エネゲート株式会社近計システム関西電力株式会社
    • IKEDA TOMOYAYAMAGUCHI HIROAKIARAKI MAIOHASHI YOSHIKAZUYOSHINAGA TAKASHI
    • G01R31/08
    • Y04S10/522
    • PROBLEM TO BE SOLVED: To provide a fault point orientation method of a transmission line, a fault point location device of the transmission line, and a fault point location program, having low cost, high speed and high accuracy.
      SOLUTION: In a signal processing part 12, accident surge waveform data are transformed into transformed waveform data in each order from the first order to a prescribed order by binary wavelet transformation, and synthesized waveform data are generated, and the arrival time and the absolute value of a direct wave, and the arrival time and the absolute value of a reflected wave of the accident surge waveform are extracted. In a simulation part 13, while moving a virtual accident point along the transmission line, the arrival time and the absolute value of a direct wave, and the arrival time and the absolute value of a reflected wave of a virtual accident waveform are predicted. In a comparison part 14, a virtual accident point corresponding to the arrival time and the absolute value of the direct wave, and the arrival time and the absolute value of the reflected wave which are predicted and have the closest correlation with the arrival time and the absolute value of the direct wave, and the arrival time and the absolute value of the reflected wave which are extracted from the synthesized waveform data is taken as the accident point at the electric accident time of the transmission line.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供传输线的故障点定向方法,传输线路的故障点定位设备和故障点定位程序,具有低成本,高速度和高精度。 解决方案:在信号处理部分12中,事故喘振波形数据通过二进制小波变换从第一阶到第二阶段按顺序变换成变换波形数据,生成合成波形数据,到达时间和 提取直流波的绝对值,事故喘振波形的反射波的到达时间和绝对值。 在模拟部13中,在沿着传输线移动虚拟意外点的同时,预测直达波的到达时间和绝对值以及虚拟事故波形的反射波的到达时间和绝对值。 在比较部分14中,对应于直达波的到达时间和绝对值的虚拟意外点,以及预测与到达时间最相关的反射波的到达时间和绝对值, 将从合成波形数据中提取的直接波的绝对值,反射波的到达时间和绝对值作为传输线的电力事故时刻的事故点。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Waveform processor
    • 波形处理器
    • JP2014050284A
    • 2014-03-17
    • JP2012193382
    • 2012-09-03
    • Kinkei System Corp株式会社近計システム
    • OURA YOSHIFUMIYAMAGUCHI YASUTAKAOHASHI YOSHIKAZU
    • H02H3/02H02H7/04
    • PROBLEM TO BE SOLVED: To provide a waveform processor which can obtain a waveform of an exact primary side current of a current transformer by amending a waveform of a secondary side current of the current transformer even if magnetic saturation occurs in the current transformer.SOLUTION: When a saturation section determination part 203 defines as a saturation section a section in which a ratio of integration value of an integration value calculated by an integration calculation part 201 to a maximum value is larger than a threshold level, a saturation section waveform calculation part 302 calculates digital waveform data representing a recovery waveform when assuming the use of a current transformer not being magnetically saturated in the saturation section, on the basis of a waveform model estimated by a waveform model estimation part 301. Then, a waveform data output part 303 outputs digital waveform data representing a secondary side current of the current transformer in a section determined to be a non-saturation section by the saturation section determination part 203, and outputs the digital waveform data representing the recovery waveform calculated by the saturation section waveform calculation part 302 in a section determined to be the saturation section by the saturation section determination part.
    • 要解决的问题:提供一种波形处理器,其即使在电流互感器中发生磁饱和,也可以通过修正电流互感器的次级侧电流的波形来获得电流互感器的精确初级侧电流的波形。解决方案: 当饱和部分确定部分203将积分计算部分201计算的积分值的积分值与最大值的比值大于阈值水平的部分定义为饱和部分时,饱和部分波形计算部分302 基于由波形模型估计部301估计出的波形模型,在假设在饱和部分中不使用磁饱和电流互感器的情况下,计算表示恢复波形的数字波形数据。然后,波形数据输出部303输出 数字波形数据表示电流互感器的一个次级侧电流 由饱和部分确定部分203确定为不饱和部分,并将表示由饱和部分波形计算部分302计算的恢复波形的数字波形数据输出到由饱和部分确定部分确定为饱和部分的部分 。
    • 6. 发明专利
    • Life diagnosis device of surge protection device
    • 防护装置的生命诊断装置
    • JP2013246899A
    • 2013-12-09
    • JP2012117934
    • 2012-05-23
    • Kinkei System Corp株式会社近計システム
    • ASAI AKIRAJO ARITSUNEOHASHI YOSHIKAZUMURAKAWA YASUTAKA
    • H01T15/00G01R31/30
    • PROBLEM TO BE SOLVED: To provide a low cost life diagnosis device of a surge protection device ensuring exact life determination while taking the impulse life characteristics of the surge protection device into account.SOLUTION: The life diagnosis device of a surge protection device includes a processor 1 performing life diagnosis of a surge protection device by receiving signals from first through n-th surge detection units U1-Un having an input section 11 to which a signal from a current sensor for detecting a surge current flowing through the surge protection device is input, a peak hold section 12 for holding the peak value of an analog signal from the input section 11, and an attenuation section 13 for attenuating an analog signal held by the peak hold section 12 exponentially, and a display device 2 for displaying the results of diagnosis.
    • 要解决的问题:提供浪涌保护装置的低成本寿命诊断装置,其在考虑浪涌保护装置的脉冲寿命特性的同时确保准确的寿命确定。解决方案:浪涌保护装置的寿命诊断装置包括处理器 1通过接收从具有输入部分11的第一至第n浪涌检测单元U1-Un的信号进行浪涌保护装置的寿命诊断,输入部件11输入来自用于检测流过浪涌保护装置的浪涌电流的电流传感器的信号 ,用于保持来自输入部分11的模拟信号的峰值的峰值保持部分12和用于衰减由峰值保持部分12保持的模拟信号的衰减部分13,以及用于显示峰值保持部分12的结果的显示装置2 诊断。
    • 7. 发明专利
    • Power line carrier communication system, power line carrier communication method, program, and recording medium
    • 电力线载波通信系统,电力线载波通信方法,程序和记录介质
    • JP2012029255A
    • 2012-02-09
    • JP2010168853
    • 2010-07-28
    • Kinkei System Corp株式会社近計システム
    • DOI ATSUSHIOKAMURA KOHEIOKUIE KENGOMOEWAKI KAZUOOHASHI YOSHIKAZUTAKAHATA KAZUNORI
    • H04B1/707H04B3/54
    • PROBLEM TO BE SOLVED: To solve the problem in which: in communication of the conventional spectrum diffusion communication method, only one-bit data can be transmitted for a single transmission of a spectrum diffusion code.SOLUTION: A transmission device 10 includes: a plurality of diffusion code generating units 12 and 13 for generating different diffusion codes; a transmission timing deciding unit 14 for deciding a timing for generating a diffusion code so that a value available by counting, in a one-chip unit time, a time lag between the time point of presence of different diffusion codes comes to be a numerical value of transmission data; a code synthesizing unit 15 for generating a transmission signal waveform available by synthesizing the diffusion codes generated by the diffusion code generating units; and a power line connection unit 17 for transmitting the transmission signal waveform having been modulated with a carrier wave to a power line 51. A reception device 20, after acquiring the transmission signal waveform from the power line and then demodulating and storing, reproduces the data of transmission signal waveform that has been stored, for detecting synchronous time points of different diffusion codes. A time lag at the synchronous time points is counted in one-chip unit time for acquiring reception data.
    • 要解决的问题:为了解决传统的频谱扩散通信方法的通信,只能对一个频谱扩散码的单个传输发送一位数据。 解决方案:发送装置10包括:用于生成不同扩散码的多个扩散码产生单元12和13; 用于决定用于生成扩散码的定时的发送定时决定单元14,使得以单片单位时间计数可用的值在不同扩散码的存在时间点之间的时间差成为数值 的传输数据; 代码合成单元15,用于通过合成由扩散代码产生单元产生的扩散代码来产生可用的传输信号波形; 以及用于将已经用载波调制的发送信号波形发送到电力线51的电力线连接单元17.接收装置20在从电力线获取发送信号波形然后解调和存储之后再现数据 已经存储的传输信号波形,用于检测不同扩散码的同步时间点。 在同步时间点的时间延迟以单片单位时间计数,用于获取接收数据。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Automatic oscillograph apparatus, waveform data server device, and automatic oscillograph system
    • 自动振荡器设备,波形数据服务器设备和自动OSCILLOGRAPH系统
    • JP2010273527A
    • 2010-12-02
    • JP2009163821
    • 2009-07-10
    • Kinkei System Corp株式会社近計システム
    • OHASHI HIDEYAFURUYA SHIGERUMAKIMURA TATSUYAOHASHI YOSHIKAZUMURAKAWA YASUTAKA
    • H02J13/00G01R13/20
    • PROBLEM TO BE SOLVED: To provide an automatic oscillograph apparatus capable of transmitting waveform data which selects the waveform data required to analyze a trouble when an electric trouble occurs, transmits the same preferentially, and distinguishes the waveform data of a trouble circuit at a receiving side easily. SOLUTION: A precedence decision unit 46 determines precedence of the waveform data stored in a memory 43 by a precedence decision condition based on startup detection by a startup detector 44. A transmitter 47 adds precedence information which is a result determined by the precedence decision unit 46 to a header of the waveform data and transmits the waveform data with higher precedence among the waveform data stored in the memory 43 to a waveform data server device ahead of other waveform data based on the precedence information. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够发送波形数据的自动示波器装置,该波形数据选择在电力故障发生时分析故障所需的波形数据,优先发送,并将故障电路的波形数据区分为 容易接收侧。 解决方案:优先级判定单元46基于启动检测器44的启动检测,通过优先判定条件来确定存储在存储器43中的波形数据的优先级。发送器47添加作为由优先级确定的结果的优先信息 决定单元46发送到波形数据的标题,并且基于优先级信息,将存储在存储器43中的波形数据中的优先级的波形数据发送到波形数据服务器装置之前的其它波形数据。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • 故障点標定システム
    • 故障点定位系统
    • JP2015004531A
    • 2015-01-08
    • JP2013128432
    • 2013-06-19
    • 株式会社近計システムKinkei System Corp
    • OURA YOSHIFUMIOHASHI YOSHIKAZUYAMAGUCHI YASUTAKATSUJI NARIAKIFUJIUCHI SHIGEYOSHIKISHIMOTO HARUKI
    • G01R31/08H02H7/26
    • 【課題】立ち上がり時刻の高精度化手法を用いたサージ到達時間差型故障点標定システムの提供。【解決手段】サージ波形成分の混入時点が明確でない場合において、(1)サージの混入時点が判明している過去の電圧または電流波形データが存在する場合は、その波形データy(t)に対して、一定時間間隔で観測された電圧または電流サージ波形の観測値DOSC(t)との比を算出し(式3)で示される誤差を算出してその値が最小となる観測値データ中のサージ波形の立ち上がり時点t0を送電線10の両端に設置された波形記録装置100−1、100−2毎に求め、その時間差から故障点標定し、(2)サージの混入時点が判明している過去の電圧または電流波形データが存在しない場合は、(式1)又は(式2)で想定されるサージ波形y(t)に対して理論的にサージ波形の立ち上がり時点t0を送電線の両端に設置された波形記録装置毎に求め、その時間差から故障点標定する。【選択図】図10
    • 要解决的问题:提供一种使用精确改进技术的上升时间的浪涌到达时差型故障点定位系统。解决方案:在浪涌波形分量的混合时间点不清楚的情况下,(1) 在确定了浪涌混合时间点的过去时间内存在电压或电流波形数据的情况下,波形数据y(t)相对于在恒定值下观察到的电压或电流浪涌波形的观测值D(t)的比率 计算时间间隔,计算(公式3)所示的误差,对于安装在两端的波形记录装置100-1,100-2获取最小值观测值数据中的浪涌波形的上升时间点 并且故障点位于时间差,(2)在确定了浪涌的混合时间点的过去时间内没有电压或电流波形数据的情况下,上升 时间点 对于安装在输电线路两端的每个波形记录装置,逻辑地获取在(公式1)或(式2)中估计的用于浪涌波形y(t)的浪涌波形,以从 时间差异。