A.F. Vasbieva - Student, Department of Automation and Telemechanics, Perm National Research Polytechnic University. E-mail: albina.vasbieva@gmail.com L.M. Oniskiva - Ph.D. (Eng.), Associate Professor, Department of Applied Mathematics, Perm National Research Polytechnic University. E-mail: oniskivf@gmail.com A.I. Posyagin - Assistant, Department of Automation and Telemechanics, Perm National Research Polytechnic University. E-mail: posyagin.anton@gmail.com A.A. Yuzhakov - Dr.Sc. (Eng.), Professor, Head of a Department of Automation and Telemechanics, Perm National Research Polytechnic University