CROSS SECTION SHAPE ACQUISITION METHOD AND CROSS SECTION SHAPE ACQUISITION DEVICE

To cut down a repetitive simple work of a workman in an observation site of an underground space such as a tunnel and the like.SOLUTION: A cross section shape acquisition method includes: installing targets 2, 4 and 6 in at least 3 points having a location coordinate in a tunnel known; causing a fre...

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Bibliographische Detailangaben
Hauptverfasser: MIMURO KEIJI, HINO HIROYUKI, OHAMA MASARU, ITO MASARU
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To cut down a repetitive simple work of a workman in an observation site of an underground space such as a tunnel and the like.SOLUTION: A cross section shape acquisition method includes: installing targets 2, 4 and 6 in at least 3 points having a location coordinate in a tunnel known; causing a freely movable unmanned mobile body (mobile body) 10 provided with a load-carrying platform having a three-dimensional laser scanner (scanner) 20 provided, four leg parts supporting the scanner, and a control device controlling an action of the scanner and the leg part to move inside the tunnel by a remote manipulation; creating a movement route so that the mobile body 10 passes through a preliminarily selected selection cross section in the inside of the tunnel; causing the mobile body 10 to autonomously move along a created route; and when a current location of the scanner 20 to be obtained by causing the scanner 20 to scan the targets 2, 4 and 6 is a prescribed location about the selection cross section, causing the scanner 20 to scan an inner wall surface, and causing the control device to acquire a shape of the selection cross section on the basis of a scan result.SELECTED DRAWING: Figure 8 【課題】トンネルなどの地下空間の観察現場における作業員の繰り返し単純作業を削減する。【解決手段】断面形状取得方法は、トンネル内の位置座標が既知の少なくとも3点にターゲット2、4、6を設置すること、3次元レーザスキャナ(スキャナ)20が設けられた荷台、これを支持する4つの脚部、並びに、スキャナ及び脚部の動作を制御する制御装置を備えた移動自在な無人移動体(移動体)10を、遠隔操作によりトンネル内で移動させ、移動体10がトンネル内空における予め選定された選定断面を通過するように移動する経路を作成すること、作成経路に沿って移動体10を自律移動させること、スキャナ20にターゲット2、4、6をスキャンさせることで得られるスキャナ20の現在位置が選定断面についての所定の位置になったとき、スキャナ20に内壁面をスキャンさせ、制御装置にスキャン結果に基づいて選定断面の形状を取得させること、を含む。【選択図】図8