International Journal of Electrical and Computer Engineering Research <p>International Journal of Electrical and Computer Engineering Research (IJECER) is an academic journal that publishes research articles and review articles emerging from theoretical and experimental studies in all fields of electrical and computer engineering. IJECER is an open access, free publication and peer-reviewed journal. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author. In addition, there is no APC fee. In order for the articles submitted to the journal to be evaluated, they should not have been published elsewhere before and the similarity rate should be less than 20%. <br />The main aim of IJECER is to publish quality original scientific papers and bring together the latest research and development in various fields of science and technology related electrical and computer enginerring. IJECER is published quarterly a year, in March, June, September and December. Permanent links to published papers are maintained by using the Digital Object Identifier (DOI) system by CrossRef.</p> <p>The topics related to this journal include but are not limited to:</p> <table border="0" width="100%"> <tbody> <tr> <td>Electrical engineering<br />Computer engineering<br />Electronics engineering<br />Biomedical engineering<br />Mechatronics engineering<br />Electrical energy and power<br />Internet of things emerging technologies<br />Internet technologies, and smart devices<br />Computer science and information technology<br />Artificial intelligence and soft computing<br />Computational science and engineering<br />Big data and cloud computing<br />Signal, image and speech processing<br />Networking and the internet</td> <td>Pattern recognition<br />Renewable energy<br />Algorithms and applications<br />Green technologies in information<br />Circuits and electronics<br />Power electronics and drives<br />Wireless sensor network<br />Computer software engineering<br />Communications and wireless networks<br />Sensors and actuators<br />Computer vision and robotics<br />Embedded systems<br />Radar and sonar systems<br />Robotics</td> </tr> </tbody> </table> ECER en-US International Journal of Electrical and Computer Engineering Research 2791-6677 Pieces Separation Applied to a RV-2AJ Industrial Manipulator <p lang="en-US" align="justify">The objective of this work is to create a system for separating types of pieces for didactic purposes. An artificial vision system applied to a manipulator was used to perform this task of classifying and separating the pieces, through the use of digital image processing. The vision system uses a camera attached to the robot's end-effector, whose objective is to identify the area, perimeter and position of the centroid of the pieces to be separated. The separation of objects is performed between two classes: with round and non-round shapes. The tests were carried out with objects such as screws and nuts. After obtaining the positions of the objects to be separated by the vision system, some characteristics of these related to the reference system of the robot base are determined. Some difficulties were observed in the recognition of objects related to the colours and lighting conditions of the separation environment. To reduce these problems, black colour objects were used in order to reduce the reflectance. Another problem encountered in the separation process is related to the relative position of objects. In this case, two or more objects can be identified as a single object, depending on their relative positions. The system classifies with a rate of hits greater than 95%.</p> Francisco Vanier de Andrade Felipe Câmara de Freitas Marcus V. L. Machado de Andrade Copyright (c) 2023 International Journal of Electrical and Computer Engineering Research 2023-09-15 2023-09-15 3 3 1 6 10.53375/ijecer.2023.326 Maximizing the Runs Scored by a Team in Cricket using Genetic Algorithm <p>Batting teams get two resources in cricket to score runs with, viz. wickets and balls. Trying to score as many runs as possible off every ball a team faces risks losing wickets. Trying to preserve wickets comes at the cost of not enough runs being scored. Thus, to maximize the runs scored, teams need to make efficient use of the balls and wickets available to them. To that end, teams primarily employ two types of batsmen-aggressive batsmen who try to score as many runs as possible off the balls they face and defensive batsmen who try to protect their wickets. Having too many aggressive batsmen helps a team score more runs off the balls they face but it stands the risk of a team losing all its wickets before they face all of their allotted balls. Having too many defensive batsmen helps a team face all the balls allotted to them but they may not end up scoring enough runs. Hence, selecting the right combination of defensive and aggressive batsmen is essential to maximize the runs a batting team scores. However, this is a computationally complex problem to solve. This study proposes the use of genetic algorithm to optimize the batting lineup of a team to help it maximize the runs scored in an innings. The test results indicate, by using the genetic algorithm, the number of runs scored batting first by the full member teams in the last five years can be improved by 5.46% on average.</p> Theviyanthan Krishnamohan Copyright (c) 2023 International Journal of Electrical and Computer Engineering Research 2023-09-15 2023-09-15 3 3 7 12 10.53375/ijecer.2023.346 Design of a Wideband, High Steering Angle and Low Side-Lobes Levels Matrix Antenna <p>This paper presents the use of pixel-type radiating elements in the context of broadband beam steering. The elements are composed of a resonant cavity topped by a frequency selective surface, fed via a patch antenna and filled with dielectric substrates. This pixel antenna has a wide -10 dB matching band from 1.22 to 1.61 GHz, which corresponds to a 27% fractional bandwidth. It has an angular aperture greater than 124° and a realized gain between 3.3 and 3.8 dBi over the whole matching band. An array composed of 5 elements has been simulated and allows a steering on a range of ±60° in the E plane while keeping the gain variation below 3 dB. A prototype has been manufactured and presents a steering capacity between -56 and 53° on the whole band with side-lobes levels lower than -8.1 dB whatever the angle.</p> Paul Karmann Edson Martinod Eric Arnaud Joël Andrieu Copyright (c) 2023 International Journal of Electrical and Computer Engineering Research 2023-09-15 2023-09-15 3 3 13 20 10.53375/ijecer.2023.350