Security of infrastructural linear objects by using three-dimensional laser scanning technology

Abstract

For the functioning of any social infrastructure object, power supply is necessary. Therefore, such linear real estate objects as power lines are important elements in the urban engineering infrastructure. Linear objects are characterized by a considerable length, which makes it difficult to perform certain types of work, including monitoring. This paper discusses the structural elements of the overhead power lines (OHPL) and their inherent types of deformations. Current methods for monitoring and the instruments used are indicated. The disadvantages of the existing technology are described, which include bias data, a low degree of immediacy of its receipt, complexity, risk to the health of the performer. Alternative contact methods (using various sensors) and remote monitoring methods (video recording) with an indication of their shortcomings are analyzed. A scanning complex was performed, the results of which examined the possibility of using this technology as a strain monitoring using the example of supports and wires of overhead power lines. To do this, in laboratory conditions, measurements of the support tilting, the height of the suspension, the sag of the span, the size of the wire, and the length of the span were made for compliance with regulatory data. A conceptual basis for creating an urban digital monitoring platform for a network of power lines is proposed.