TECHNOLOGICAL SOLUTIONS IN SPHERE OF GEOSPATIAL INFORMATION ONLONG DISTANCE PIPELINES AND OBJECTS OF THEIR INFRASTRUCTURE

Abstract

Relevance of the researchis caused by the fact that currently in the Russian Federation, for servicing mining and development of minerals, it is necessary to perform survey and geodetic works, by the results of which arrays of geospatial data are formed.They are the basis for the design and arrangement of oil and gas fields and are the source information for three-dimensional modeling of the earth's surface, geological structures of deposits and infrastructure of pipeline systems. Besides, geospatial data is necessary for preparation of documents for state cadastral registration and registration of land use rights. Based on this, the article sets scientific and technical task: analyze the possibilities of using various methods of providing geospatial information GIS pipeline systems with data for 3D modeling of the studied fields and pipelines. Corporate GIS is filled with data on the state of pipeline transport, using information from space survey systems with high and medium spatial resolution, as well as shooting materials from unmanned aerial vehicles and aerial laser scanning. Monitoring of pipeline systems is carried out as well using ground-based geodetic survey data. One of most common types of modern geodetic equipment is high-precision and accurate electronic total stations that allow you obtain geospatial information on terrain and anthropogenic objects bothin terms of plan and height. The height component is determined as result of performing trigonometric leveling. The use of the trigonometric leveling method is especially relevant when working in rough terrain and adverse conditions, in particular in regions of the Extreme North. The aim of the research is toanalyze the possibilities of using various methods of providing geospatial information for GIS pipeline systems: satellite surveys with different spatial resolutions, unmanned aerial vehicles and aerial laser scanningdata, trigonometric leveling of classes III and IV with the use of high-precision electronic total stations in the formation of geospatial data arrays of main pipeline monitoring systems. Methods: decoding of aerospace images, experimental research in field with space survey materials, unmanned aerial vehicles and aerial laser scanningdata, use of high-precision levels and electronic total stations for trigonometric leveling, geoinformation technologies Results. Quality of geospatial information for GIS monitoring of pipeline systems was evaluated. The work shown that the data from remote sensing of the Earth with different spatial resolutions, unmanned aerial vehicles and aerial laser scanning allow forming arrays of geospatial data necessary for services operating pipeline systems, providing planned linking with sufficient accuracy; when creating high-altitude geodetic justification, when accuracy needs be increased to class III and IV, instead of time-consuming geometric leveling, it is advisable to supplement arrays with information, obtained by trigonometric leveling using high-precision electronic tacheometers.

Keywords

• geospatial data
• decoding of aerospace images
• geoinformation technologies
• unmanned aerial vehicles
• aerial laser scanning
• three-dimensional model of the earth's surface
• trigonometric leveling
• high-precision electronic tacheometer