A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TRACK INSPECTION DEVICE AND TRACK INSPECTION METHOD
To provide a track inspection device which can inspect a track displacement from only an image captured by a camera without the need to install an instrument or a subject becoming a reference point on the ground side.SOLUTION: A track inspection device 1 comprises: a first acquisition unit 11 which acquires three-dimensional point group data along a railroad including three-dimensional coordinates and a color value of each of a plurality of first points around a track; a first extraction unit 12 which acquires three-dimensional point group data of a head top surface of a plurality of second points expressing the head top surface of a rail in the plurality of first points; a second acquisition unit 14 which selects the second point within a range in which there is a Y coordinate in the Y-axis direction in which the rail extends among the plurality of second points expressing the head top surface and acquires the three-dimensional point group data of the center line expressing the center line of the head top surface of the rail on the basis of the three-dimensional coordinates of the selected second points; and an inspection unit 15 which inspects a track displacement of the track on the basis of the three-dimensional point group data of the center line.SELECTED DRAWING: Figure 3
【課題】地上側に器具又は基準点となる被写体を設置する必要がなく、カメラにより撮像された画像のみから軌道変位を検測することができる軌道検測装置を提供する。【解決手段】軌道検測装置１は、軌道周辺の複数の第１点の各々の３次元座標及び色値を含む線路沿線の３次元点群データを取得する第１取得部１１と、複数の第１点のうちレールの頭頂面を表す複数の第２点の頭頂面の３次元点群データを取得する第１抽出部１２と、頭頂面を表す複数の第２点のうちレールが延在するＹ軸方向におけるＹ座標がある範囲内である第２点を選択し、選択された複数の第２点の３次元座標に基づいて、レールの頭頂面の中心線を表す中心線の３次元点群データを取得する第２取得部１４と、中心線の３次元点群データに基づいて軌道の軌道変位を検測する検測部１５と、を有する。【選択図】図３
TRACK INSPECTION DEVICE AND TRACK INSPECTION METHOD
To provide a track inspection device which can inspect a track displacement from only an image captured by a camera without the need to install an instrument or a subject becoming a reference point on the ground side.SOLUTION: A track inspection device 1 comprises: a first acquisition unit 11 which acquires three-dimensional point group data along a railroad including three-dimensional coordinates and a color value of each of a plurality of first points around a track; a first extraction unit 12 which acquires three-dimensional point group data of a head top surface of a plurality of second points expressing the head top surface of a rail in the plurality of first points; a second acquisition unit 14 which selects the second point within a range in which there is a Y coordinate in the Y-axis direction in which the rail extends among the plurality of second points expressing the head top surface and acquires the three-dimensional point group data of the center line expressing the center line of the head top surface of the rail on the basis of the three-dimensional coordinates of the selected second points; and an inspection unit 15 which inspects a track displacement of the track on the basis of the three-dimensional point group data of the center line.SELECTED DRAWING: Figure 3
【課題】地上側に器具又は基準点となる被写体を設置する必要がなく、カメラにより撮像された画像のみから軌道変位を検測することができる軌道検測装置を提供する。【解決手段】軌道検測装置１は、軌道周辺の複数の第１点の各々の３次元座標及び色値を含む線路沿線の３次元点群データを取得する第１取得部１１と、複数の第１点のうちレールの頭頂面を表す複数の第２点の頭頂面の３次元点群データを取得する第１抽出部１２と、頭頂面を表す複数の第２点のうちレールが延在するＹ軸方向におけるＹ座標がある範囲内である第２点を選択し、選択された複数の第２点の３次元座標に基づいて、レールの頭頂面の中心線を表す中心線の３次元点群データを取得する第２取得部１４と、中心線の３次元点群データに基づいて軌道の軌道変位を検測する検測部１５と、を有する。【選択図】図３
TRACK INSPECTION DEVICE AND TRACK INSPECTION METHOD
軌道検測装置及び軌道検測方法
KAWASAKI KYOHEI (author) / MIWA MASAFUMI (author) / MISHIMA KENGO (author) / KONNO SHUHEI (author)
2022-09-29
Patent
Electronic Resource
Japanese
TRACK IMAGE RECOGNITION DEVICE, TRACK INSPECTION DEVICE AND TRACK INSPECTION VEHICLE
| European Patent Office | 2023
Online Contents | 1994