No. 4

The task of protecting secondary power sources of electronic equipment from high voltages and ways to solve it

The article considers the problem of protecting secondary power sources of radio-electronic equipment (REE) from high DC voltages of various polarities appearing at their outputs. The classification of the tasks of protecting secondary power sources of REE to be solved is given, and the ways to solve them are indicated. Protection schemes for secondary power supply sources of REE based on the methods of diode protection and galvanic isolation of the protected secondary power supply source of REE and protection schemes from each other are presented. The problem of protecting secondary power sources of REE for the case of pulsed exposure to high DC voltage of alternating polarity has been solved.

Keywords: REE secondary power supply source, high DC voltage of various polarities, diode protection method, galvanic isolation method.

Intelligent analysis and data management in manufacturing processes

The article considers methods of intelligent analysis and data management in the production of spare parts. The results of studying and solving this problem will improve production efficiency, automate production processes, and use resources more efficiently.

Keywords: big data, machine learning, robust control, intelligent analysis, fuzzy information environment.

Hardware architecture of a modern enterprise using industrial Internet of Things technologies

This article deals with the problem of increasing the manufacturability of the enterprise for the production of passenger car bodies. The authors of the article propose the hardware architecture of this enterprise with the use of industrial Internet of Things technologies. The article proposes the use of smart sensors, monitoring systems and data analytics for continuous assessment of equipment status, prediction of possible failures and scheduled maintenance. The solutions proposed in the article will be useful when integrating various technological solutions into a single equipment control system in order to improve its reliability and efficiency. Examples of specific problems and possible solutions, as well as recommendations for the application of modern technologies in the field of equipment maintenance are considered.

Keywords: Industrial Internet of Things, Industrial Internet Reference Architecture, hardware architecture, automation.

Analysis of digital signal processing systems against the background of interference

The systems of digital signal processing of moving targets against the background of passive interference, which carry out coherent cutting with subsequent incoherent accumulation of cutting residues, are considered. A recursive filter is considered as a notch filter (RF), in which, in order to reduce the time of the transient process, a restructuring of its structure is used by switching reverse (recursive) connections. The subject of the study is the detection characteristics of digital signal processing systems based on recursive RF tunable and fixed structures. A comparison of the efficiency of digital signal processing systems in transient and steady-state modes with tunable and fixed structures of the recursive RF is carried out.

Keywords: transient mode, signals, processing systems, recursive notch filters, passive interference, detection characteristics.

Selection of Machine Learning Models for Predicting the Parts Quality

This paper proposes a novel method for predicting the quality of parts manufactured on computer numerical control (CNC) machines using machine learning (ML) technologies. Various ML models for predicting defect rates and dynamically adjusting sampling control plans are examined. The most promising models for further application in developing a quality prediction system within the production process are identified.

Keywords: quality prediction, CNC machining, machine learning.

Mathematical model for visualizing and analyzing energy flows in electrical substations using fractal methods

This study focuses on developing an innovative method for visualizing and analyzing energy flows around digital substations based on a comprehensive approach. The primary focus is creating a dynamic heat map and energy flow graphs using modern data processing technologies and big data analysis.

Initially, digital data on substations will be collected, including geographical coordinates, equipment parameters, and consumption indicators. The developed algorithm will enable real-time visualization of energy processes using the Julia set method to generate fractal surfaces. These structures will enhance visualization by providing operators and valuable insights into the status of the network.

These results integration into substation management systems will ensure effective monitoring and analysis, contributing to increased reliability and security of energy systems.

The authors provide a brief description and example of the implementation of the Julia set method implementation. Using a set of substation coordinates from a specific area near Moscow, an evaluation of the Julia set method for map construction was conducted. The obtained data demonstrate the practical applicability of the method and accuracy in constructing a simple map with points of interest.

Keywords: fractal surface, Mandelbrot set, Julia set, network substations, substation flow graph, electrical substation heat map.

Algorithm for determining the state of vehicle wiring harnesses based on fuzzy logic

This paper proposes a fuzzy logic model for solving the problem of diagnosing the presence and nature of faults in car wiring harnesses. The model can be used for designing a full-fledged fuzzy logic controller, which, in turn, can serve as an intelligent add-on in the diagnostic system for assessing the condition of vehicle wiring harnesses.

Keywords: fuzzy logic, car wiring harnesses, production rules, linguistic variable, membership function, electrical wiring diagnostics, intelligent add-on.

Information and measurement system for monitoring the state of the environment. Creation of a methodology for designing developing territories based on geoinformation technologies

The issues of forming a system for assessing the harmful effects of pollutants on the environment and analyzing the mutual effects of border areas, as well as the use of functional geotaxons to assess the degree of impact of technogenic industries on the environment of developing territories and their interaction are considered. The classification of geotaxons and the determination of the characteristics of territorial objects during zoning are considered in order to create a system for assessing the degree of impact of the analyzed territory on the environment and assessing the mutual impact of adjacent territories.

Keywords: geotaxon, zoning of the territory, classification of geotaxons, administrative zoning, functional zoning, digital model.