Development of the aerosurveying complex based on the DJI S1000 octocopter UAV

Abstract

Goal. The purpose of the work is to develop an aerial photography complex based on a DJI S1000 helicopter UAV for aerial photography, which includes a laser scanner (LS) and a digital camera (CPC). Method. For several decades, aerial photography has been an effective tool for geodetic works, geophysical surveys and various types of monitoring. On the other hand, the use of not only digital imaging, but also laser scanning of objects allows to maximize the accuracy of obtaining the coordinates of points on the ground and eliminate such a process as plan-height binding in the field, which occupies more than 80 % of field work that is, much cheaper the process of creating cartographic materials. In addition, the use of laser scanners on board unmanned aerial vehicles helps to solve a number of scientific and applied problems in various fields, such as engineering research, environmental monitoring, landscape research and modeling, construction, architecture, archeology and more. Comprehensive study, research and monitoring of the environment involves the availability and use of highly efficient modern technologies, special software for data processing and analysis and qualified human resources. Aerial laser scanners are the latest high-precision technology for obtaining data about the object by noncontact method and have a multi-purpose purpose. I have been actively using them in the world since the early 2000s. They have a number of advantages over traditional aerial photography. Drugs are manufactured by the world’s leading companies, they are available on the market and are in great demand among foreign specialists. Unfortunately, in Ukraine, airborne laser scanners are used in limited quantities to perform special tasks with the involvement of foreign experts. In this area we have a significant lag compared to other European countries. Therefore, the acquisition and application of such a software and technology complex and UAV will help solve and accelerate the solution of many important scientific and applied problems in Ukraine, as well as increase the potential, opportunities and prestige in domestic and world science and practice. Results. A mock-up model of installation and implementation of Velodyne VLP-16 on a DJI S1000 helicopter UAV has been developed. The authors analyzed the known systems and created the best option for connecting and connecting the elements, which made it possible to simplify the layout of the devices, which in turn made it possible to reduce the cost of the proposed complex. Scientific novelty and practical significance. For the first time in Ukraine, a method of installing a helicopter-type UAV was developed and proposed. With the help of an airborne laser scanning system installed on board an unmanned aerial vehicle of helicopter type it is possible to solve a number of important scientific and applied tasks, such as: monitoring the technical condition of large and hard-to-reach structures – nuclear, hydro and thermal power plants, power lines, etc. ; monitoring the condition of roads, detecting places of surface damage and other dangerous places in order to prevent car accidents; detection of damage to forests and agricultural lands; observation and prevention of landslides in mountains and industrial quarries, places of soil erosion; monitoring of water resources, changes in contours and heights of the coastal strip; detection of roof defects, deformations, wall cracks on highrise buildings for architectural measurements, 3D modeling, documentation and preservation of cultural heritage sites; assistance in archaeological exploration to identify archaeological sites and study artifacts. In addition, peripheral drugs can be installed on other moving objects (cars, railcars, boats, etc.) and scanning from fixed bases in stationary conditions.