Journal of Electrical Engineering and Information Technologies

Undercover

Blagoja Bogatinoski — 2024-09-10

Undercover

Impresum

Blagoja Bogatinoski — 2024-09-10

Impresum

Blagoja Bogatinoski — 2024-09-10

Table of contents

INTERLABORATORY COMPARISONS OF THE CALIBRATION RESULTS OF ENERGY METERS

Oleh Velychko — 2024-08-21

The article is devoted to the analysis of the results of the interlaboratory comparison (ILC) of the electric energy meter, which were carried out in 2024. ILC results of calibration of the energy meter at the points of alternating voltage 230 V, currents from 0.05 A to 10 A, power factors from ±1.0 to ±0.5 at a frequency of 50 Hz are presented. The deviations of the results obtained by each laboratory were determined, and the consistency of the obtained results was assessed, taking into account the uncertainty of the measurements using the criterion of functioning statistics. In general, laboratories have received satisfactory accuracy and there is good agreement between participants for this quantity. Laboratories meet the established requirements and confirms their qualification (technical competence) during the calibration in accordance with the requirements of the standard ISO/IEC 17025. It is expected thatthis ILC will be able to provide support for participants’ calibration capabilities.

DESIGN OF CARTESIAN ROBOT TEST RIG FOR ANGULAR POSITION SENSORS

Filip Donchevski — 2024-08-21

A design solution for a test rig is proposed, intended for experimentation with angular position sensors. The test rig utilizes a Cartesian robot (gantry robot) with an additional axis for the purpose of implementing rotational motion. In addition, this test rig introduces a supervisory control system (SCS) for the purpose of: interacting with the user, acquiring and recording measurement results from an oscilloscope, coordination between the motion of robot and oscilloscope measurement actions. The test rig will provide a remote access with real-time video stream that will enable control and monitoring activity from Wide Area Network (WAN). The design incorporates a goal of a low cost build while achieving a reasonable motion accuracy for the testing purposes of a common angular position sensor. Furthermore, the build is designed to be modular and flexible enough to be repurposed for future educational uses in the field of robotics. The design envisages a solution that should require the least amount of custom developed technologies, utilizing already available and widely used mechanical and electrical hardware components, as well as software tools and libraries.

FORECASTING PV PRODUCTION USING FUZZY REASONING APPROACH

Donard Shaliu — 2024-09-10

In recent years, many studies have been done related to the implementation of methods for PV generation forecasting. The PV generation depends on several factors. Since Artificial Intelligence methods have a greater advantage than other methods, in this paper the construction of a PV energy predictive model of using Fuzzy Logic Approach has been considered. In this paper, a fuzzy reasoning approach is used for prediction of the PV generation. In the proposed method, the fuzzy inferences knowledge-based on IF-THEN rule is developed using MATLAB fuzzy software. Using fuzzy logic, the mathematical representation of influential variables on the prediction of solar power is defined. Three variables influencing the prediction of solar power are taken in consideration as fuzzy logic inputs. These variables are: hours of the day, clouds, tilt angle. The detailed analysis of the fuzzy system surfaces shows that the factors taken in consideration are mutually related. A set of different values of inputs are defined and then PV energy production forecast is made applying the fuzzy approach. The constructed rules based in engineering experience accurately represent forecast of PV generation.

ENERGY EFFICIENCY IN 6G MOBILE NETWORKS

Stojan Kitanov — 2024-09-10

The 5G network technology is finding its use in variety of sectors in the global industry. Significant improvements are achieved in terms of latency, data rates, spectral efficiency, mobility, and number of connected smart mobile devices. Digital society and smart cities are reality. 5G networks offer a wide range of applications and services, but still have some limitations regarding the rapidly increasing data traffic demands. The focus of the research and development activities are set on the next 6G mobile and wireless networks, which are expected to be commercially available around 2030. In this direction, this paper proposes a 6G Advanced Wireless Mobile Heterogeneous Access Network (6G AWN-HAN) architecture with artificial intelligence, whose description is expected to contribute in defining the specification standards of 6G network. It also evaluates the performance quality of artificially intelligently, orchestrated services in 6G mobile networks in terms of energy efficiency. The research results show a significant improvement in energy efficiency by applying artificial intelligence at the edge of the network.

REVIEW AND ANALYSIS OF NOVELTIES IN THE DRAFT TEXT OF THE NEW LAW ON ELECTRONIC COMMUNICATIONS

Liljana Denkovska — 2024-09-10

The Law on Electronic Communications in N. Macedonia regulates the specific matter related to electronic communications. In the last few decades, there have been several versions of this law, the content of which is often changed and amended and is regularly harmonized with the regulation from the European Union. Currently, a draft text for a new Law on Electronic Communications is being prepared, with the aim of harmonizing it with the European Code of Electronic Communications (Directive 2018/1972, or COD Directive), adopted by the European Parliament and the Council of the European Union in December 2018. In this paper, after a brief introduction and overview of the Macedonian market of electronic communications, the reasons for adopting a new law are presented. The paper systematically presents and analyzes in detail the novelties that will be introduced with the new Law on Electronic Communications.

CYBER SECURITY LEGAL FRAMEWORK WITH SPECIAL FOCUS ON NIS2 AND N. MACEDONIA

Valentina Angelkoska — 2024-09-10

The digitization trend and the complex geopolitical situation result in an increased number of cyber attacks worldwide. The countries of the Western Balkans, including N. Macedonia, are no exception to this trend. The subjects of the cyber attacks are the critical infrastructure and data privacy of public and private companies. One of the major issues that N. Macedonia is facing in the domain of cyber security is the lack of an effective legislative framework that will be harmonized with the legislative frameworks of the EU member states. This paper provides an overview of European legislation with a special focus on NIS2 Directive and the actions that regulated companies should undertake in order to meet the requirements of this directive. Apart from an overview of the Macedonian cyber security related legislation, this paper also provides appropriate recommendations for governments and key stakeholders about cyberspace and critical infrastructure protection.

DIGITAL DEVELOPMENT BOARD FOR SHORT RANGE OBJECT DETECTION WITH STEGANOGRAPHIC DATA HIDING TECHNIQUES

Rexhep Mustafovski — 2024-09-10

This scientific paper discusses the application of single-board computers in performing various projects focusing on the practical development of a radar system for detecting objects at short distances using the digital development electronic board Arduino Mega 2560, that contribute to the development of electronic technology, microcomputers and microprocessors and their application for educational purposes. An overview of various literary sources related to the development of digital electronics, microprocessors, digital forensics as an important scientific discipline within the security of sharing various information and their application during the development of various educational projects has been used. Additionally, various methods and techniques used in steganography are illustrated, a study of the implementation of those techniques, and a demonstration of the implementation process of one of the steganography techniques using the QuickStego steganography tool. The development of the radar system for the detection of objects at short distances was carried out by programming the ultrasonic radar system using the tools Arduino IDE, Processing PDE, Matlab and Simulink, which offer support for the Arduino hardware.

INSTRUCTIONS FOR AUTHORS

Blagoja Bogatinoski — 2024-09-10

INSTRUCTIONS FOR AUTHORS