To provide a trolley wire measurement method and a trolley wire measurement device each of which enables a center position of a trolley wire to be accurately identified, even when a shape of a slide surface is not flat, without using additional means for measuring a position of a trolley wire other than imaging means for acquiring an image.SOLUTION: The trolley wire measurement method comprises: extracting luminance data corresponding to a contour line in a reflection image in the vicinity of a trolley wire based on intensity and distribution of luminance data acquired in an image processing step, and discriminating a wear region and arc region in the luminance data corresponding to the contour line; and identifying a center position of a virtual circle including the arc region based on two coordinate positions included in the discriminated arc region. The trolley wire measurement device comprises: a light source which is arranged on top surface of a base moving on a lower side of the trolley wire along the trolley wire and emits light to the trolley wire; an imaging apparatus capturing a reflection image of the emitted light; and a control device processing the reflection image captured by the imaging apparatus and controlling operation of the light source and the imaging apparatus.SELECTED DRAWING: Figure 4
【課題】 画像を取得する撮像手段以外のトロリ線の位置を測定するための追加的な手段を用いることなく、摺動面の形状が平面でなくても精度良くトロリ線の中心位置を特定することができるトロリ線測定方法及びトロリ線測定装置の提供。【解決手段】 測定方法は、画像処理工程で得られた輝度データの強度及び分布に基づいてトロリ線近傍の反射画像内における外形線に対応する輝度データを抽出し、この外形線に対応する輝度データにおいて摩耗領域及び円弧領域を識別する。識別された円弧領域に含まれる2点の座標位置からこの円弧領域を含む仮想円の中心位置を特定する。また、装置は、トロリ線の下方をこれに沿って移動するベースの上面に配置されトロリ線に向けて光を投光する光源と、投光された光の反射画像を撮像する撮像装置と、光源及び撮像装置の動作を制御し撮像装置で撮像された反射画像を処理する制御装置とを備える。【選択図】図4
TROLLEY WIRE MEASUREMENT METHOD AND TROLLEY WIRE MEASUREMENT DEVICE
トロリ線測定方法及びトロリ線測定装置
2019-09-26
Patent
Elektronische Ressource
Japanisch
IPC: | G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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