DEVICE AND METHOD FOR COMPUTING BASIC INFORMATION FOR EXCAVATION REGION RESTRICTION CONTROL, AND CONSTRUCTION MACHINE

• Main Authors: MEGURIYA SHUICHI, EGAWA EIJI, KANARI YASUHIKO, ISHII KEIHAN
• Format: Patent
• Language: English; Japanese
• Published: 23.03.2015
• Subjects: DREDGING; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING

PROBLEM TO BE SOLVED: To provide a device and method for computing basic information about excavation region restriction control, which can improve efficiency in excavation region restriction control, and to provide a construction machine.SOLUTION: A basic information computing device 30 for computing basic information about region restriction excavation control for controlling a work machine 20 of a construction machine so as not to perform excavation beyond an excavation target surface comprises: a target surface storage device 33 for storing three-dimensional position information of the excavation target surface; a two-dimensional information extraction device 34 for determining an intersection between an excavation target surface or a reference surface based on the same and an operation plane of the work machine 20 on the basis of the three-dimensional position information of the excavation target surface and the present position information of the construction machine and extracting the intersection or a reference line L based on the same as two-dimensional information on the reference surface on the operation plane; and a feature point information transmission device 35 for transmitting the z-coordinate of each of a plurality of feature points P1,P2,... Pn on the reference line L as basic information to a region restriction excavation control device 40. 【課題】掘削領域制限制御を高効率化することができる掘削領域制限制御の基礎情報の演算装置及び演算方法、並びに建設機械を提供する。【解決手段】掘削目標面を越えて掘削しないように建設機械の作業機２０を制御する領域制限掘削制御の基礎情報を演算する基礎情報演算装置３０であって、掘削目標面の三次元位置情報を記憶した目標面記憶装置３３と、掘削目標面の三次元位置情報、及び建設機械の現在位置情報を基に掘削目標面又はこれに基づく面である基準面と作業機２０の動作平面との交線を求め、交線又はこれに基づく線である基準線Ｌを動作平面上における基準面の二次元情報として抽出する二次元情報抽出装置３４と、基準線Ｌ上の複数の特徴点Ｐ１，Ｐ２，・・・ＰｎのＺ座標を基礎情報として領域制限掘削制御装置４０に送信する特徴点情報送信装置３５とを備える。【選択図】 図３