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All Journal ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Sistem Cerdas EPIC : Journal of Electrical Power, Instrumentation and Control
Muhammad Risqi Nuryana
Universitas Katolik Indonesia Atma Jaya
Automotive Engineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering

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Analysis of Voltage Drop and Illuminance Performance in 24 VDC LED Lightning System Using Different Driver Capacities Muhammad Risqi Nuryana; Moh Hanif Assubhi
EPIC Journal of Electrical Power Instrumentation and Control Vol 8 No 1 (2025): EPIC
Publisher : Universitas Pamulang, Prodi teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/epic.v8i1.58505

Abstract

This study examines how driver capacity influences voltage distribution and illuminance in a 24 VDC LED lighting installation. In many practical projects, differences in driver ratings are often assumed to have minimal impact as long as the load requirement is satisfied; however, voltage drop along the cable may affect the actual performance at the luminaire. An experimental measurement was conducted using identical LED fixtures connected through a 12-meter cable while varying the driver capacities at 20 W, 35 W, and 100 W. For each configuration, the output voltage from the driver, the voltage received at the LED terminals, and the resulting illuminance were recorded after stable operating conditions were reached. The observations show that higher driver capacity tends to provide slightly better voltage regulation at the load side, and this improvement is followed by an increase in measured illuminance. Although the voltage differences are relatively small, the trend consistently indicates the importance of proper driver selection in maintaining system effectiveness, especially in low-voltage installations with distribution distance. The results are expected to serve as a practical reference for electrical and lighting engineers in determining suitable driver specifications to achieve reliable and optimal lighting performance.
Implementation of Constraint Satisfaction Problem Approach for Solving the Zebra Puzzle with Prolog Tri Bagus Kurniawan; Muhammad Risqi Nuryana; Resi Sujiwo Bijokangko
EPIC Journal of Electrical Power Instrumentation and Control Vol 8 No 2 (2025): EPIC
Publisher : Universitas Pamulang, Prodi teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/epic.v8i2.58721

Abstract

Constraint Satisfaction Problem (CSP) Is a fundamental concept in artificial intelligence used to solve combinatorial problems by satisfying a set of constraints. The Zebra Puzzle is a classical example that involves assigning attributes such as nationality, house color, pet, drink, and candy to five houses based on logical clues. This study aims to implement CSP techniques using the Prolog programming language to solve the Zebra Puzzle. The methodology includes classifying all relevant attributes, encoding constraints into Prolog predicates, and applying helper functions to represent adjacency and ordering relationships. The puzzle is modeled as a list of structured facts, and Prolog’s inference engine is used to derive consistent solutions. The program successfully assigns all attributes to the correct house positions. For example, the Englishman lives in the red house, the Spaniard owns the dog, and the Ukrainian drinks tea. The Norwegian lives in the first house and drinks water, while the Japanese owns the zebra. These results confirm the effectiveness of Prolog in solving structured logic puzzles using CSP. The study concludes that logic programming is a reliable tool for modeling and solving constraint-based problems. This implies broader applicability of CSP in intelligent systems.
Real-Time Telemetry Based Monitoring System for Energy Efficiency Evaluation of Scheduled Dimming in Office Corridor Lighting Muhammad Risqi Nuryana; Veronica Windha Mahyastuty; Ridwan Satrio Hadikusuma
Jurnal Sistem Cerdas Vol. 9 No. 1 (2026)
Publisher : APIC

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37396/jsc.v9i1.640

Abstract

In many office buildings, corridor lighting systems are commonly operated at full brightness continuously, regardless of occupancy conditions, resulting in unnecessary energy consumption. This study proposes and evaluates a real-time telemetry-based monitoring system to assess the energy efficiency of a scheduled dimming strategy for office corridor lighting. The developed system integrates dimmable LED luminaires with a telemetry unit capable of transmitting real-time illuminance and energy consumption data for monitoring and analysis. A time-based dimming schedule of 25%, 50%, and 75% output levels was implemented in an office corridor environment. Illuminance measurements were collected at five different points along the corridor, while electrical energy consumption was recorded continuously over a seven-day observation period through the telemetry monitoring platform. The results indicate that even at the lowest dimming level (25%), the corridor maintained an average illuminance of 100 lux, which remained within acceptable lighting standards for pedestrian circulation. Telemetry data further demonstrated that the scheduled dimming strategy reduced weekly energy consumption by approximately 64% compared to continuous full operation (0.711 kWh reduced to 0.253 kWh). These findings confirm that real-time telemetry monitoring enables accurate performance evaluation of lighting control strategies while ensuring compliance with visual comfort requirements. The study highlights the potential of telemetry-based lighting monitoring systems as an effective approach to optimize energy use, minimize over-lighting, and support data-driven energy management in office buildings.
Experimental Comparison of DALI and 0–10V LED Dimming Systems for Smart Lighting MUHAMMAD RISQI NURYANA; MARSUL SIREGAR; KAREL OCTAVIANUS BACHRI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 14, No 1: Published January 2026
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v14i1.42

Abstract

This study compares the dimming performance of DALI and 0–10 V using three commercial LED drivers at eight dimming levels. The testing included power consumption, illuminance, and flicker stability. The results showed that DALI was able to maintain a linear dimming curve down to low levels such as 10%, 5%, and 1%, with consistent flicker within the No Risk zone. Power consumption at 0% was also low, making it suitable for applications requiring deep dimming and stable visual comfort. Conversely, the 0–10 V system performed quite well at high levels and was slightly more efficient at low power, but its performance dropped drastically below 30%. At 10%, the illuminance was almost zero and the flicker level entered the High Risk zone. Overall, DALI is more ideal for smart lighting with smooth transitions, while 0–10 V is more suitable for basic installations.
Co-Authors Bachri, Karel Octavianus Moh Hanif Assubhi Resi Sujiwo Bijokangko Ridwan Satrio Hadikusuma Siregar, Marsul Tri Bagus Kurniawan Veronica Windha Mahyastuty