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INFOKUM
Published by SEAN INSTITUTE
ISSN : 23029706     EISSN : 27224635     DOI : -
Core Subject : Science,
Computer Science & IT
The INFOKUM a scientific journal of Decision support sistem , expert system and artificial inteligens which includes scholarly writings on pure research and applied research in the field of information systems and information technology as well as a review-general review of the development of the theory, methods, and related applied sciences. Software Engineering. Image Processing Datamining Artificial Neural Networks
Arjuna Subject : Ilmu Komputer (semua kategori) - Kecerdasan Buatan
Articles 842 Documents
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EXPLORING MARKET OPPORTUNITIES: THE ROLE OF SEGMENTATION IN INCREASING SALES IN THE FOOD AND BEVERAGE INDUSTRY Gunawan Gunawan
INFOKUM Vol. 10 No. 02 (2022): Juni, Data Mining, Image Processing, and artificial intelligence
Publisher : Sean Institute

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Abstract

This study aims to understand the role of market segmentation in increasing sales of food and beverage products through a qualitative approach. In an increasingly competitive business environment, a deep understanding of consumer characteristics is key to designing effective marketing strategies. The research method used is qualitative with a descriptive approach, where data were collected through in-depth interviews with business actors in the food and beverage sector as well as direct observation of the marketing strategies implemented. The results show that market segmentation in the food and beverage industry is crucial for understanding differences in consumer tastes and needs. By segmenting the market based on demographics, taste preferences, lifestyle, and health aspects, companies can create more suitable products and effective marketing strategies. This approach helps improve consumer satisfaction and loyalty, opens opportunities for product innovation, and reaches new market segments, thus supporting sustainable business growth and company competitiveness.
Evaluation of the Implementation of the Smoke-Free Zone Policy in DKI Jakarta Province Arga Lintong; Nurliah Nurdin; Megandaru Widhi Kawuryan
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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This study aims to analyze and evaluate the implementation of the Smoke-Free Area (KTR) policy in DKI Jakarta Province. The objectives of this study are to assess the extent to which this policy is implemented effectively and efficiently, and to identify factors that influence compliance with the policy in the field. This study uses Dunn's (2003) policy evaluation theory, which includes six main criteria: effectiveness, efficiency, adequacy, equity, responsiveness, and accuracy. The approach used in this study is descriptive qualitative, with data collection techniques through interviews, observation, and documentation. The results show that although this policy has shown some progress, such as increased public awareness of the importance of a smoke-free environment, significant challenges remain, particularly in terms of inconsistent law enforcement and low levels of compliance in several sectors, such as public transportation and public places. This evaluation also highlights the need for increased oversight, community engagement, and the provision of smoking facilities that meet standards. Furthermore, although resource management is quite good, increased budget and human resources are essential to strengthen policy implementation. This study proposes that the DKI Jakarta Provincial Government improve inter-agency coordination, strengthen oversight through technology, and expand educational campaigns to ensure the overall success of the KTR policy. In this regard, stricter law enforcement and continuous evaluation are key to achieving optimal policy objectives. This research contributes to our understanding of the implementation of the KTR policy in Jakarta and strategies for improving it for a healthier future.
Performance Analysis of a Pure Sine Wave Inverter Using the EGS002 Module Jhon Wandes P. Hutagaol; Ahmad Dani; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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The development of renewable energy technology increases the need for efficient and reliable inverters to convert direct current into alternating current. This study aims to analyze the performance of a pure sine wave inverter using the EGS002 module as a pulse width modulation controller to produce a pure sine wave. The main issues studied are power conversion efficiency, output voltage stability, and total harmonic distortion (THD) under various load conditions, including resistive and non-linear loads. The research method involves experimental simulations using MATLAB/Simulink and Proteus software, by designing an inverter system based on the EGS002 module, IRF3205 MOSFET transistor, and LC filter. Performance parameters measured include power conversion efficiency (η), total harmonic distortion, and RMS output voltage (V_RMS). The simulation results show that the inverter achieves an average power conversion efficiency of 91.4%, total harmonic distortion below 5% under all load conditions, and output voltage stability with a deviation of less than 1% from the nominal value of 220 volts. These findings indicate that the EGS002 module is effective for inverter applications in renewable energy systems, although optimization is required for non-linear loads and production cost reduction. This research provides important insights for the development of more efficient and reliable inverters.
IoT-Based Smart Home Automation Design Analysis Marthin Hotniel Marisi Arigatho Simbolon; Beni Satria; Ahmad Dani
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The increasing need for comfort, energy efficiency, and home security has driven the development of an Internet of Things (IoT)-based smart home automation system. This study designs a smart home system using ESP32 as the main controller, integrated with a PIR sensor for intruder detection, a light sensor for automatic lighting control, a gas sensor for leak detection, and the Blynk application for remote monitoring. The main problem is the lack of affordable systems that integrate security and energy efficiency in real-time. The objective of this study is to develop a system that is cost-effective, responsive, and easy to use. Methods include hardware configuration, ESP32 programming, and testing in a residential simulation. The results show a PIR sensor detection accuracy of 95%, energy savings of up to 30% through automatic lighting control, and a Blynk notification reliability of 98%. This system offers an affordable solution to improve home security and energy efficiency.
IoT Heart Beat Monitoring Based on Nodemcu ESP32 Ricki Septiando Sinaga; Beni Satria; Hamdani, Hamdani
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Cardiovascular disease is a leading cause of global death, with early detection of heart rate anomalies key to preventing complications such as arrhythmias. However, conventional monitoring systems are often expensive, non-portable, and less accessible in remote areas. This study aims to develop an affordable and portable Internet of Things (IoT)-based heart rate monitoring system using the MAX30100 sensor and an ESP32 microcontroller. The system is designed to measure heart rate in real time, transmit data to the Blynk IoT platform, and provide automatic notifications when the heart rate is outside the normal range (60–100 beats per minute). The research methods include system design, hardware and software implementation, and testing on 10 subjects aged 20–40 years. Heart rate data was processed using a moving average filter to reduce motion noise. The test results showed heart rate measurement accuracy with an average relative error of 2.57%, an average data transmission latency of 1.39 seconds, and a notification response time of 1.8 seconds. The system is also power-efficient with a consumption of 80 milliamperes, making it suitable for long-term use. This research has successfully produced an efficient and accessible heart rate monitoring solution, supporting early detection of heart disorders in resource-limited settings.
The Influence of Digital Marketing and Brand Awareness Onpurchase Decisions at the Nino 911 Startup in Medan City Soterniat Zai; Amrin Mulia Utama Nasution
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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This research aims to determine the influence of digital marketing and brand awareness on purchasing decisions at the Nino 911 application start-up in Medan City. This research uses quantitative and associative methods. The total population is 425,976 residents spread across 5 sub-districts as representatives of Medan City. In determining the sample, the author used Slovin's theory with a sample of 100, and the sample collection technique used was nonprobability sampling and snowball sampling to determine the sample. The data analysis technique uses multiple linear regression analysis. Based on the research results, it shows that (1) digital marketing variables have a significant influence on purchasing decisions at the Nino 911 start-up in Medan City, (2) brand awareness variables have a significant influence on purchasing decisions at the Nino 911 start-up in Medan City, and (3) digital marketing variables and brand awareness simultaneously have a significant influence on purchasing decisions at the Nino 911 start-up in Medan City.
Analysis of the Effect of Frequency Variation on the Speed of a Single-Phase Induction Motor Jon Timo Bariman M; Solly Aryza; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Single-phase induction motors are widely used in domestic and light industrial applications, but their performance is often affected by variations in power supply frequency, which affect rotor speed, torque, and energy efficiency. This study aims to analyze in depth the effect of frequency on the performance of a single-phase induction motor through an experimental approach, focusing on the relationship between frequency, rotor speed, torque, and energy efficiency. Tests were conducted on a 1 horsepower motor using a variable frequency drive at a frequency range of 30 to 70 hertz. Rotor speed (in revolutions per minute), torque (in newton-meters), and energy efficiency (in percent) were measured under no-load and mechanically loaded conditions. The results show that the rotor speed increases linearly from 820 revolutions per minute at 30 hertz to 1850 revolutions per minute at 70 hertz under loaded conditions. Torque peaks at 2.30 newton-meters at 50 hertz, while energy efficiency increases from 21.18% at 30 hertz to 40.00% at 70 hertz. This research provides a model of the relationship between frequency and motor performance that can be used to optimize motor operation in practical applications, especially to improve energy efficiency in the domestic and light industrial sectors.
Analysis of Monitoring and Optimization of Electrical Energy Consumption at the Faculty of Dentistry, University of North Sumatra (USU) Using a Smart Metering System Rakha Zahri Andresna; Solly Aryza; Beni Satria
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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The increasing consumption of electrical energy in academic environments, including the Faculty of Dentistry, University of North Sumatra (FKG USU), demands a more efficient energy monitoring and optimization system. This study aims to analyze the pattern of electrical energy consumption at FKG USU and optimize its use using a Smart Metering System. The methods used in this study include collecting energy consumption data through smart meters, analyzing consumption patterns using statistical and data mining approaches, and simulating optimization scenarios based on energy efficiency strategies. The results show that the use of a Smart Metering System can improve energy efficiency by reducing electricity consumption by up to (percentage if any) through more optimal electricity load management and user awareness of energy use. With this system, FKG USU can implement more effective energy saving strategies, reduce electricity operational costs, and contribute to environmental sustainability.
Power Consumption Analysis of ONT (Optical Network Ter-minal) Devices in Indihome Household Usage Amos Marganda Girsang; Ahmad Dani; Solly Aryza
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Optical Network Terminal (ONT) devices are the main components in the Fiber to the Home (FTTH) network used by IndiHome to provide fiber optic-based internet services. ONT operates continuously for 24 hours, so the power consumption of this device contributes to household electricity use. In this final project aims to analyze ONT power consumption under various operational conditions and identify its effect on household electricity loads. The research method includes measuring ONT power consumption using a wattmeter in three usage scenarios: idle (no connected devices), normal (1-3 connected devices), and high load (more than 3 active streaming/gaming devices). Data were collected over several days to identify power consumption patterns. Utilization of power saving modes (if available), and selection of ONTs with better energy efficiency. The results of this study are expected to provide insights for IndiHome users to improve energy efficiency in internet use in households.
Improving 20 kVA Generator Power Performance by Rewinding the Stor Conductor Windings Rianto Wijaksana Silalahi; Parlin Siagian; Haris Gunawan
INFOKUM Vol. 13 No. 05 (2025): Infokum
Publisher : Sean Institute

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Abstract

The decline in power performance in generators can be caused by various factors, one of which is the degradation of the stator conductor windings due to age, excessive temperature, or unstable operational conditions. This study aims to analyze and improve the power performance of a 20 kVA generator through the rewinding process of the stator windings with new conductors that meet technical standards. In this study, the methods used include initial analysis of the condition of the old windings, planning the winding redesign, the rewinding process, and testing the results through measuring voltage, current, efficiency, and power factor. The test results show a significant improvement in generator performance parameters after the rewinding process. The output voltage becomes more stable, power losses decrease, and efficiency increases from 0% to 80%. In addition, the power factor has improved from 0 to 0.92. This improvement proves that the rewinding process with the right material and technical specifications can restore and even significantly improve generator performance. This study makes a real contribution to the maintenance and reconditioning of electrical equipment, especially in small-to-medium scale power generation systems.

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