To provide a traffic route facility inspection device that detects with high accuracy the position of a traffic route facility in which a portion of the surface formed with a circular arc is shielded by a structure.SOLUTION: An arithmetic circuit computes from profile data the center point coordinates and the radius of a circle of the circular arc constituting a sectional curved portion of the traffic route facility using the method of least square of circles (step 102). Subsequently, the arithmetic circuit calculates the coordinates of center point of a circle passing through two circumferential points of a circle having the computed center point coordinates and radius and having the same radius as the radius of circle of the circular arc regulated by traffic route facility standards (step 103). The arithmetic circuit further causes the calculated center point coordinates to be displaced stepwise in each axial direction of coordinate axis and selects coordinates where the sum total of square of an error between the radius calculated from the profile data and the radius of circle of the circular arc regulated by standards is minimum (step 104). Then, the arithmetic circuit detects the position of the traffic route facility from the selected coordinates (step 105).SELECTED DRAWING: Figure 4
【課題】円弧で形成された表面の一部が構造物で遮蔽されている交通路設備の位置を、高精度に検出する交通路設備の検測装置を提供する。【解決手段】演算回路は、プロファイルデータから、円の最小二乗法を用いて、交通路設備の断面の曲線部分を構成する円弧の円の中心点の座標及び半径を演算する(ステップ102)。続いて、演算した中心点の座標及び半径を有する円の円周上の2点を通り、交通路設備の規格で規定された円弧の円の半径と同じ半径を有する円の中心点の座標を算出する(ステップ103)。さらに、算出した中心点の座標を座標軸の各軸方向に段階的に変位させて、プロファイルデータから算出した半径と、規格で規定された円弧の円の半径との誤差の二乗の総和が最小となる座標をそれぞれ選出する(ステップ104)。そして、選出した座標から交通路設備の位置を検出する(ステップ105)。【選択図】図4
TRAFFIC ROUTE FACILITY INSPECTION DEVICE AND INSPECTION METHOD
交通路設備の検測装置及び検測方法
25.04.2019
Patent
Elektronische Ressource
Japanisch
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