A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ROAD SURFACE CONDITION DETECTION DEVICE AND ROAD SURFACE CONDITION DETECTION PROGRAM
To properly detect damage to pavements with minute and sudden drop-offs.SOLUTION: A road surface condition detection device 1 that acquires point group data from a point group data generator 2 that generates three-dimensional coordinates of a road as point group data based on reflected laser beams irradiated on a road on which a moving vehicle moves, and detects a road surface condition of the road based on the acquired point group data includes; leveling processing means 103 for leveling the point group data so as to eliminate gradients in the traveling direction and width direction of the road; skewness calculation means 104 for dividing the leveled point group data into a mesh of a predetermined size in a horizontal plane, generating a histogram of elevation values of the point group data for each mesh, and calculating a skewness of the road surface within the mesh based on the shape of the histogram; and damage extraction means 105 for extracting meshes for which the calculated skewness is less than a predetermined threshold value as damage locations on the road surface.SELECTED DRAWING: Figure 1
【課題】微小かつ急激な落差がある舗装の損傷を適切に検出する。【解決手段】移動体が移動する道路に対して照射したレーザー光の反射光に基づいて道路の３次元座標を点群データとして生成する点群データ生成装置２から点群データを取得し、取得した点群データに基づいて道路の路面状態を検出する路面状態検出装置１であって、点群データを道路の進行方向および幅方向の勾配をなくすように水平化処理する水平化処理手段１０３と、水平処理化された点群データを、水平面において所定サイズのメッシュに分割し、メッシュ毎に点群データの標高値のヒストグラムを生成し、ヒストグラムの形状に基づいて、メッシュ内の路面の歪度を算出する歪度算出手段１０４と、算出された歪度が所定の閾値以下であるメッシュを路面の損傷個所として抽出する損傷個所抽出手段１０５と、を備える。【選択図】 図１
ROAD SURFACE CONDITION DETECTION DEVICE AND ROAD SURFACE CONDITION DETECTION PROGRAM
To properly detect damage to pavements with minute and sudden drop-offs.SOLUTION: A road surface condition detection device 1 that acquires point group data from a point group data generator 2 that generates three-dimensional coordinates of a road as point group data based on reflected laser beams irradiated on a road on which a moving vehicle moves, and detects a road surface condition of the road based on the acquired point group data includes; leveling processing means 103 for leveling the point group data so as to eliminate gradients in the traveling direction and width direction of the road; skewness calculation means 104 for dividing the leveled point group data into a mesh of a predetermined size in a horizontal plane, generating a histogram of elevation values of the point group data for each mesh, and calculating a skewness of the road surface within the mesh based on the shape of the histogram; and damage extraction means 105 for extracting meshes for which the calculated skewness is less than a predetermined threshold value as damage locations on the road surface.SELECTED DRAWING: Figure 1
【課題】微小かつ急激な落差がある舗装の損傷を適切に検出する。【解決手段】移動体が移動する道路に対して照射したレーザー光の反射光に基づいて道路の３次元座標を点群データとして生成する点群データ生成装置２から点群データを取得し、取得した点群データに基づいて道路の路面状態を検出する路面状態検出装置１であって、点群データを道路の進行方向および幅方向の勾配をなくすように水平化処理する水平化処理手段１０３と、水平処理化された点群データを、水平面において所定サイズのメッシュに分割し、メッシュ毎に点群データの標高値のヒストグラムを生成し、ヒストグラムの形状に基づいて、メッシュ内の路面の歪度を算出する歪度算出手段１０４と、算出された歪度が所定の閾値以下であるメッシュを路面の損傷個所として抽出する損傷個所抽出手段１０５と、を備える。【選択図】 図１
ROAD SURFACE CONDITION DETECTION DEVICE AND ROAD SURFACE CONDITION DETECTION PROGRAM
路面状態検出装置および路面状態検出プログラム
SANO MIKAKO (author) / KAMEYAMA SHUICHI (author) / MATSUI SUSUMU (author) / SAKURABA AKIRA (author) / ONODERA AKIRA (author) / MORIOKA TORU (author) / TSUKADA MASAYUKI (author) / SASAKI YOICHI (author) / KIKUCHI HIROSHI (author) / KOMATSU HIROMASA (author)
2024-03-07
Patent
Electronic Resource
Japanese
IPC:
G08G
Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs
,
TRAFFIC CONTROL SYSTEMS
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
G01B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
,
Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen
/
G06T
Bilddatenverarbeitung oder Bilddatenerzeugung allgemein
,
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
| European Patent Office | 2016
| European Patent Office | 2016
| European Patent Office | 2016
| European Patent Office | 2017
| European Patent Office | 2017