CAJ | 학술논문

在无人机大发展背景下,选择MD4-1000四旋翼电动无人机,以天津东疆人造沙滩北防波堤(近岸300 m斜坡式防波堤和离岸1.8 km半圆体防波堤)作为试验对象,开展基于无人机的防波堤巡检尝试.无人机沿防波堤中心线飞行并不间断垂直向下拍摄,获取大量的覆盖完全并具有一定重叠度的数码照片,继而利用摄影测量后处理软件Pix4Dmaper获取了斜坡式防波堤的二维正射影像和三维数字表面模型数据,并且在照片集中识别并测量了半圆体防波堤的变形和破损形状.基于无人机的防波堤巡检方法是一种"室外航拍,室内检测"的新巡检工作模式,不仅效率高,而且成果展现形式更加生动具体.
재무인궤대발전배경하,선택MD4-1000사선익전동무인궤,이천진동강인조사탄북방파제(근안300 m사파식방파제화리안1.8 km반원체방파제)작위시험대상,개전기우무인궤적방파제순검상시.무인궤연방파제중심선비행병불간단수직향하박섭,획취대량적복개완전병구유일정중첩도적수마조편,계이이용섭영측량후처리연건Pix4Dmaper획취료사파식방파제적이유정사영상화삼유수자표면모형수거,병차재조편집중식별병측량료반원체방파제적변형화파손형상.기우무인궤적방파제순검방법시일충"실외항박,실내검측"적신순검공작모식,불부효솔고,이차성과전현형식경가생동구체.
Under the background of booming UAV (unmanned aerial vehicle), we tried to apply UAV to on-site inspection of breakwater. The UAV we used is MD4-1000 quadrocopter UAV, while the test case breakwater is the northern breakwater of Dongjiang Bay artificial beach in Tianjin, comprised of a 300 m's nearshore sloping breakwa-ter and 1.8 km's offshore semicircular breakwater. The UAV flew along the centerline of the breakwater and continu-ously shoot vertically downwards, acquiring plenty of overlapped digital images covering the whole breakwater. Based on the photo gallery, 2D orthophoto and 3D digital surface model of the sloping breakwater were produced with the aid of photogrammetry software Pix4Dmapper, while deformation and breakage of the semicircular breakwa-ter was identified and measured. UAV based on-site inspection of breakwater is a new operating mode (outdoor fly-ing and indoor inspection), proven to be more efficient and producing vivid and specific results.