Overview of the DJI ZENMUSE L1 Laser Scanner for Spatial Planning Purposes

Abstract

Laser scanning of objects is a modern method for obtaining 2D and 3D models of the surrounding space. During the operation of the devices, a cloud of points with spatial coordinates is created, which ultimately give a three-dimensional image. Three-dimensional scanning of objects allows you to create digital models not only of individual buildings and structures, but also of entire complexes or territories. Laser scanning technology has existed for a long time, the effect of this technology was felt by specialists in various industries only in the last decade. In geodesy, laser scanning serves as a source of data for creating accurate three-dimensional models. By using drones to quickly collect data from a safe distance, it becomes possible to instantly receive up-to-date information that does not require extra costs. LiDAR technology was introduced into the DJI Zenmuse L1 system, thereby creating a payload module that can translate point clouds in real time and collect data to develop a topographic map of the area. The technology for processing laser scanning data is considered using the DJI ZENMUSE L1 laser scanner as an example. Methods and technologies for processing scanning data at all stages have been collected and combined - from the preliminary processing of “raw data” to the creation of digital elevation models, contour lines and other products. The functionality of DJI Terra and Spatix/Terrascan programs is described. The aim of the study is to study the principles of laser scanning data processing. The research problem is the imperfection of laser scanning data processing methods. As a result of the work done, using the DJI Terra program, the data obtained using the 3D airborne laser scanning technology was processed. With active LiDAR detection, Zenmuse L1 can scan terrain to collect point clouds even at night or in low light conditions with an integrated RGB camera and a high-precision IMU.