To provide a system for detecting a sign of generation of a wavy wear which may be generated on a rail top surface of a curved track on which a railway vehicle travels.SOLUTION: A sign detection system 100 of this invention comprises: lateral vibration acceleration measuring means 10 which is installed on an inner track side rail Ra of a curved track on which a railway vehicle travels, measures a lateral vibration acceleration of the inner track side rail when the railway vehicle travels on the inner track side rail, and outputs a lateral vibration acceleration signal; and detection means 20 which receives an input of the lateral vibration acceleration signal output from the lateral vibration acceleration measuring means, extracts signal components of a preliminarily decided frequency band relating to a wavy wear of the inner track side rail from the inputted lateral frequency acceleration signal, and detects a sign of generation of the wavy wear on the inner track side rail on the basis of the magnitude of the extracted signal components.SELECTED DRAWING: Figure 1
【課題】鉄道車両が走行する曲線軌道において、レールの頭頂面に発生し得る波状摩耗の発生の予兆を検知するシステムを提供する。【解決手段】本発明に係る予兆検知システム100は、鉄道車両が走行する曲線軌道の内軌側レールRaに設置され、鉄道車両が内軌側レールを走行する際の内軌側レールの左右振動加速度を測定して左右振動加速度信号を出力する左右振動加速度測定手段10と、左右振動加速度測定手段から出力された左右振動加速度信号が入力され、該入力された左右振動加速度信号から、予め決定された内軌側レールの波状摩耗に関連する周波数帯域の信号成分を抽出し、該抽出した信号成分の大きさに基づき、内軌側レールの波状摩耗の発生の予兆を検知する検知手段20と、を備える。【選択図】 図1
SIGN DETECTION SYSTEM OF WAVY WEAR OF RAILWAY CURVED TRACK AND SIGN DETECTION METHOD
鉄道用曲線軌道における波状摩耗の予兆検知システム及び予兆検知方法
27.06.2019
Patent
Elektronische Ressource
Japanisch
RAIL WAVY WEAR DETECTION DEVICE, AND RAIL WAVY WEAR DETECTION METHOD
Europäisches Patentamt | 2019
|Railway sign detection and classification
IEEE | 2006
|SIGN DETECTION SYSTEM, SIGN DETECTION METHOD, AND SIGN DETECTION PROGRAM
Europäisches Patentamt | 2024
|DERAILMENT SIGN DETECTION SYSTEM AND DERAILMENT SIGN DETECTION METHOD
Europäisches Patentamt | 2020
|Europäisches Patentamt | 2018
|