| Abstract: Although the financial benefits are crucial for today's market oriented industry, environment protection is recognized as an ultimate goal for modern industry development. This goal is usually performed in the frame of energy efficiency. It has been shown that non-intrusive load monitoring (NILM) is not only beneficial for planning and optimization of production but also for consumption of energy. Overview of basic problems related to NILM, key idea, theoretical frames for realization of this task and an implemented algorithm are presented in this paper. |