DISTANCE INFORMATION DETECTING SYSTEM, LAYOUT DRAWING FORMING SYSTEM, AND LAYOUT DRAWING FORMING METHOD

To grasp a layout state of facility members in a dark and narrow space by a simple method using a three-dimensional measurement easily and in a short time.SOLUTION: A layout drawing forming system comprises: a distance measurement portion 4 measuring distance data 41 to many points to be measured in a facility in a building space existing in a measurement range with a prescribed swing angle using a three-dimensional laser measurement; a three-dimensional map forming portion 5 detecting optical point group data 51 in which the distance data 41 is specified on a three-dimensional coordinate system and drawing the point group data 51 to form a three-dimensional map 52; an image forming portion 6 forming a planarly displayed tomographic image 61 in which the three-dimensional map 52 is cut in an optional cross section; a distance calculation portion 7 calculating a distance between the optional two points to be measured in the tomographic image 61; and a layout drawing forming portion 8 combining position information 21 of the building space, the tomographic image 61 formed in the image forming portion 6 and the distance calculated in the distance calculation portion 7 to form an in-building layout drawing 81.SELECTED DRAWING: Figure 1 【課題】三次元計測によって簡単な方法により、暗く、狭い空間内の設備部材の配置状態を容易に且つ短時間で把握することができる。【解決手段】三次元レーザー計測により所定振り角の計測範囲にある建物空間内の設備における多数の被計測点までの距離データ４１を計測する距離計測部４と、距離データ４１を三次元の座標系に特定した光学的な点群データ５１を検出し、この点群データ５１を描画して三次元マップ５２を作成する三次元マップ作成部５と、三次元マップ５２を任意の断面で切断した平面表示された断層画像６１を生成する画像生成部６と、断層画像６１における任意の２点の被計測点同士の距離を算出する距離算出部７と、建物空間の位置情報２１と、画像生成部６で生成した断層画像６１と、距離算出部７で算出された距離とを組み合わせて建物内配置図８１を作成する配置図作成部８と、を備えた構成の配置図作成システムを提供する。【選択図】図１