HIGH-PRECISION REAL-TIME GRAB POSITIONING METHOD AND SYSTEM

• Main Authors: GAO Feng, LI Laichun, MAO Guoming, LI Xiaoyan, LAN Jiangang, HONG Xuemin, REN Lizhi, RAO Guoping, SI Wenbo, WEI Cunzhong, ZHENG Weidong, WU Junke, ZHU Yuanyuan, CHEN Feng, LIN Yi
• Format: Patent
• Language: English
• Published: 26.02.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The present invention belongs to a high-precision real-time grab positioning method and system, and the method includes the following steps: performing real-time capture of positions of a grab and a hull by redundantly configured 3D laser radar scanning devices, so as to obtain point cloud data; performing filtering, noise reduction and deviation checking on the point cloud data, specifically, the deviation checking is to generate a grab movement trajectory and then model when a data deviation is less than a set value; generating three-dimensional coordinates of the grab position relative to a reference point of a ship unloader; and performing a high-precision division of characteristic regions on the three-dimensional coordinates. According to the present invention, different flight unloading operations for bulk materials with different viscosities are realized and operation efficiency is improved.