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All Journal Jurnal Edukasi Elektro JTEV (Jurnal Teknik Elektro dan Vokasional Jurnal Simetris Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer JTERA (Jurnal Teknologi Rekayasa) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Teknika Jurnal Teknologi dan Manajemen Eksergi: Jurnal Teknik Energi Electrician : Jurnal Rekayasa dan Teknologi Elektro Kohesi: Jurnal Sains dan Teknologi SNTE
Legenda Prameswono Pratama
Department Of Electrical Engineering, Jakarta Global University
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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Rancang Bangun Alat Monitoring Daya Pada Perangkat Hybrid Optimization Model For Electric Renewable (Homer) Berbasis Internet Of Things Legenda Prameswono Pratama; Adi Nugroho
JTEV (Jurnal Teknik Elektro dan Vokasional) Vol 8, No 2 (2022): JTEV (Jurnal Teknik Elektro dan Vokasional)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.307 KB) | DOI: 10.24036/jtev.v8i2.116654

Abstract

Telah dilakukan penelitian yang bertujuan untuk mengontrol dan memonitoring daya pada perangkat HOMER dengan cara memanfaatkan sensor arus PZEM-004t untuk mendeteksi arus, tegangan dan daya beban. Sensor PZEM-004t berperan sebagai input yang masuk ke mikrokontroler NODEMCU ESP8226 yang telah dibekali dengan modul wifi, dan data akan dikirim lalu ditampilkan oleh aplikasi Blynk pada smartphone menggunakan basis Internet of Things. Berdasarkan penelitian ini didapat data persentase error monitoring beban pada HOMER dengan perbandingan data terhadap Clampmeter sebagai berikut : 1. Lampu dengan beban daya 6 Watt yaitu dengan error pada Tegangan 0.03 %, Arus 0.6 %, Daya 0.6 %. 2. Charger HP dengan beban daya 10 Watt yaitu dengan error pada Tegangan 0.08 %, Arus 0.3 %, Daya 0.3 %. 3. Lampu + Charger HP yaitu dengan error pada Tegangan 0.1 %, Arus 0.4 %, Daya 1.6 %. Dengan data yang didapat tersebut rata-rata error yang didapat yaitu pada Tegangan = 0.06 %, Arus = 0.3 %, dan Daya 0.6 %. Dengan penelitian ini, daya beban pada perangkat HOMER dapat dimonitoring dan dikontrol melalui Smartphone menggunakan basis Internet Of Things.
Analytical Design of the Number of Blade Propeller for Study of Aerodynamics Characteristics using Flow Simulation Vresdian, Devan Junesco; Hapsari, Anindya Ananda; Wilyanti, Sinka; Dionova, Brainvendra Widi; Pratama, Legenda Prameswono; Saleh, Yasya Khalif Perdana
JTERA (Jurnal Teknologi Rekayasa) Vol 8, No 2: December 2023
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v8.i2.2023.297-304

Abstract

The selection of an appropriate number of blades for a propeller is a critical factor in the design and performance of UAVs. This study aims to analyze aerodynamics. The analytical methodology employed in this research involves computational fluid dynamics (CFD) simulations using state-of-the-art software. A parametric study is conducted to evaluate the effect of different blade numbers on various aerodynamic performance metrics, such as dynamic pressure, static pressure, velocity, and force (Y). These simulations are carried out over a range of operating conditions, including varying airspeeds and altitudes. Our findings reveal that the number of blades significantly influences the aerodynamic characteristics of the propeller. Based on the CFD results, the type of propeller generates a different characteristic of aerodynamics. It will produce more static pressure, dynamic pressure, and velocity if we add the number of blades to it. But, with the CFD process we know that if we need to generate more force, especially in the (Y) axis as the representation of thrust on UAV, we need to consider using a propeller with a 2-blade or 4-blade that generates more thrust efficiently with 367.79 N and 450.59 N respectively rather than 3-blade or 5-blade. Because if the number of blades is added it will cost more pressure either on dynamic or static and velocity value but not following by force (Y) value. Using 200 the trajectories are enough to represent the aerodynamic characteristic produced by each type of propeller.
Rancang Bangun Smart Keyless Locker Dengan BLE Tag dan ESP32 Pada Loker Kunci Ruangan Lab di Laboratorium Jakarta Global University Nugraha, Kevin Setya; Putra, Arisa Olivia; Pratama, Legenda Prameswono
Kohesi: Jurnal Sains dan Teknologi Vol. 4 No. 7 (2024): Kohesi: Jurnal Sains dan Teknologi
Publisher : CV SWA Anugerah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.3785/kohesi.v4i7.5868

Abstract

Perkembangan teknologi membuat banyak temuan yang lebih mudah. Penelitian ini akan membahas mengenai bagaimana merancang sebuah sistem keamanan sederhana untuk loker penyimpanan menggunakan teknologi BLE dan IoT serta mengukur kecepatan respon ESP32 dengan BLE Tag dan pengaruh jarak dengan tegangan yang dibutuhkan oleh ESP32 dan BLE Tag saat membuka kunci loker, bagaimana tingkat kecepatan waktu yang diperlukan untuk meminta akses loker melalui telegram dan mengetahui tingkat keandalan sistem keamanan yang dirancang dari sisi BLE Tag dan Telegram. Penelitian ini menghasilkan sistem yang dirancang ini menggunakan mikrokontroler ESP32 yang disandingkan dengan BLE Tag untuk mengakses loker. delay bot telegram diukur dengan aplikasi Wireshark dan menghasilkan rerata delay sebesar 600 mili detik. Bot Telegram hanya menerima akses pada pengguna yang sudah terdaftar pada program ESP32 dan akan memberikan penolakan terhadap pengguna yang tidak terdaftar Pengguna yang terdaftar hanya dapat mengakses satu loker dalam satu waktu. ESP32 tidak bisa merespon Bluetooth Low Energy.
A Systematic Review of Drone Development and Innovation Helps Handling during a Pandemic and Its Challenges for Health Technology Hapsari, Anindya Ananda; Vresdian, Devan Junesco; Dionova, Brainvendra Widi; Zuhriyah, Halimatuz; Pratama, Legenda Prameswono; Islami, Agnemas Yusoep
Jurnal Teknologi dan Manajemen Vol. 22 No. 2 (2024): JURNAL TEKNOLOGI DAN MANAJEMEN (AUGUST)
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v22i2.246

Abstract

Abstract—These technological advances make researchers around the world develop many new things to support the harmony of life. Humans think a lot, including in terms of technology for the advancement of the times and to maintain life, as well as for handling the unprecedented outbreak of the corona virus that spread in the end of 2019, referred to as COVID-19 by the World Health Organization (WHO), and has put the whole world in a precarious position. The impact of the COVID-19 outbreak, which was witnessed only by Chinese citizens, has become a problem of great concern for almost every country around the world makes the COVID-19 outbreak is spreading tremendous fear, overburdened healthcare system has forced most countries around the world are in a state of partial or complete lockdown. Researchers have begun to develop studies in various fields to help control the virus. Technology is also forced to adapt and develop faster to deal with the existing situation. In response to this action, with this review paper we use trusted sources to present a detailed review of specific aspects related to technological developments during the COVID-19 pandemic, especially UAV or drone technology. In this study we explore the use of technologies such as Unmanned Aerial Vehicles (UAVs) or drones that are modified for handling pandemic situations, and how these technologies are also combined with other trending technologies such as the Internet of Things (IoT), Artificial Intelligence (AI), and 5G, among others, to help reduce their impact from the COVID-19 outbreak and the challenges for the post COVID-19 period. Where UAV technology can be modified and developed according to the needs of the pandemic and development for the post-pandemic and endemic period
Design of A Thermoelectric Generator for Battery Charging using Heat from A Steam Iron Base Sundari, Delta; Manfaluthy, Mauludi; Pratama, Legenda Prameswono; Dionova, Brainvendra Widi; Vresdian, Devan Junesco; Putri, Arisa Olivia; Al-Humairi, Safaa Najah Sahud; Mohammed, M. N.
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 8 No. 2 (2024)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v8i2.1307

Abstract

This study explores an alternative method of generating electrical energy using a thermoelectric generator that utilizes heat from the soleplate of a steam iron and six thermoelectric units connected in series. Based on the Seebeck effect, the thermoelectric modules convert the temperature difference into voltage. An increase in the heat source temperature leads to higher voltage production by the series-connected thermoelectric modules, although the electrical power output depends on the connected load. The power generator design includes thermoelectric modules, a buck-boost converter, an 18650 lithium-ion battery, and a 5-watt, 12-volt DC lamp. The study addresses key aspects such as the impact of temperature on power output in series-connected and parallel-connected thermoelectric circuits, and the efficient conversion of heat from the steam iron soleplate into electrical energy. The research objectives are threefold: to determine power and temperature values for series-connected thermoelectric circuits, to evaluate power and temperature values for parallel-connected thermoelectric circuits, and to utilize heat from the steam iron soleplate as a thermoelectric heat source for generating electrical energy. Testing involved a buck-boost converter connected to a battery, producing 12.35 volts with a temperature difference of 49°C. Design enhancements, such as integrating heatsinks or coolers on the cold side of the modules to maintain a significant temperature differential, are critical for optimizing performance.
Analysis of LoRaWAN Network Signal Coverage and Quality Parameters in Real-Time: Case Study of Cikumpa River Water Quality Monitoring, Depok City Ariansa, Hasri; Pratama, Legenda Prameswono; Faizah, Safira; Putri, Arisa Olivia; Jaenul, Ariep; Dionova, Brainvendra Widi; Al-Humairi, Safaa Najah Sahud; Mohammed, M. N.
Teknika Vol. 13 No. 3 (2024): November 2024
Publisher : Center for Research and Community Service, Institut Informatika Indonesia (IKADO) Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34148/teknika.v13i3.1060

Abstract

In the context of an increasingly advanced era, Internet of Things (IoT) technology has emerged as a significant innovation across a range of fields. One of the most rapidly developing Internet of Things (IoT) technologies is the Long Range Wide Area Network (LoRaWAN). LoRaWAN is capable of long-distance communication while simultaneously consuming minimal power. In this study, we analyze the coverage of the LoRaWAN network in transmitting data with Cikumpa river water objects, with a 100–600 meters distance between the transmitter (TX) and receiver (RX). This study assesses the RSSI network quality, LoRaWAN SNR, and LoRaWAN network QoS quality concerning throughput, delay, jitter, and packet loss parameters. The testing results demonstrated that the LoRaWAN network coverage reaches a maximum distance of 600 meters. Researchers conducted the testing in the Cikumpa River area. They then analyzed the RSSI and SNR test results in the morning, afternoon, and evening. The results of the RSSI test and calculations demonstrate that as the distance between the transmitter and receiver increases, the RSSI value decreases. The RSSI testing conducted in the morning exhibited a range of -99 dBm to -121 dBm, with the SNR values spanning from -3.25 dB to 8.75 dB. The results of the daytime RSSI tests ranged from -104 dBm to -124 dBm, with the corresponding SNR values ranging from -8.50 dB to 9.00 dB. The RSSI test results for the afternoon period exhibited a range of -96 dBm to -120 dBm, while the SNR demonstrated a range of -7.25 dB to 9.00 dB. In addition, the quality of service (QoS) can be considered stable based on the results of the RSSI and SNR for each test. During the testing process, conducted at distances between 100 and 600 meters, there was no packet loss when data transmission occurred. This research demonstrates the potential for utilizing LoRaWAN technology to monitor a desired object remotely.
Prototype Secure Locker System Menggunakan RFID pada Laboratorium Universitas Global Jakarta Putri, Arisa Olivia; Balamaru, Bakti; Jaenul, Ariep; Pratama, Legenda Prameswono
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 15, No 2 (2024): JURNAL SIMETRIS VOLUME 15 NO 2 TAHUN 2024
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/simet.v15i2.12291

Abstract

Smart locker system adalah sebuah sistem penyimpanan yang dilengkapi dengan teknologi canggih untuk mengamankan dan mengatur akses terhadap barang atau benda berharga. Sistem ini terdiri dari loker elektronik yang dapat dikendalikan secara otomatis dengan menggunakan berbagai metode identifikasi, seperti kartu RFID, sidik jari, atau kode pin. Penelitian ini bertujuan untuk merancang sistem keamanan yang dapat meningkatkan kemanan pada box kunci ruang laboratorium Universitas Global Jakarta dengan menggunakan sistem RFID. Pada penelitian ini menggunakan Metode Research and Development (penelitian dan pengembangan) untuk mengembangkan prototype peningkatan keamanan box kunci ruang laboratorium. hasil penelitian dan pengujian RFID Reader dapat membaca objek dengan maksimal jarak yakni 3cm. Tegangan pada RFID Reader dalam keadaan normal dengan rata – rata 3,185 V dengan rata – rata error 3,48%, dari 91 kali pengujian pada tiap kelipatan refleksi 30ᵒ untuk setiap masing – masing jarak pembacaan. Pengiriman data yang berupa notifikasi telegram terkirim dalam rata – rata rentang waktu 7,96s dari 50 kali pengujian. Sistem keamanan box kunci dirancang dengan baik, dibuktikan system ini mampu melakukan trigger kepada servo untuk membuka dan menutup pintu loker sebagai respon input dari RFID reader.
Tourism Bike Tracking Design with The LoRaWAN Network Approach to The Meikarta Central Park Area Pratama, Legenda Prameswono; Manfaluthy, Mauludi; Nugroho, Feri; Hapsari, Anindya Ananda; Koko; Al-Humairi, Safaa Najah Saud
Teknika Vol. 14 No. 1 (2025): March 2025
Publisher : Center for Research and Community Service, Institut Informatika Indonesia (IKADO) Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34148/teknika.v14i1.1196

Abstract

Technological developments in Indonesia are relatively rapid, and most people have become part of the Internet of Things era. There are a couple of new technologies in the Internet of Things, one of which uses long-range (LoRa) communication technology, a wireless delivery method using radio signals at a frequency of 433 MHz. Meikarta Central Park is a city park that provides tourist bicycle rentals. Problems often occur when visitors rent bicycles, resulting in tourist bicycles being lost or placed incorrectly. All these problems make it difficult for operators to find abandoned bicycle locations. This research develops a system to detect the location of Meikarta’s tourist bicycles using a GPS tracker with an Arduino microcontroller based on a long-range working principle. On the other hand, the location point can be seen on the map’s application so that the whereabouts of the bicycle can be known. The research results of the tracking from the tourist bicycle GPS tracker using LoRa were 5 test locations, the furthest range of 625 meters on the first tourist bicycle with an accuracy value of 11.2 meters. Meanwhile, the second tourist bike has the most extended range of 590 meters with an accuracy level of 4.4 meters.
Implementasi WSN untuk Peringatan Dini Kebakaran Hutan Berbasis LoRaWAN dan Notifikasi Telegram pratama, legenda
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 3 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n3.2913

Abstract

Kebakaran hutan menjadi ancaman serius di Kabupaten Tegal. Penelitian ini mengembangkan sistem peringatan dini menggunakan Wireless Sensor Network (WSN) yang terintegrasi dengan LoRaWAN dan notifikasi real-time via Telegram. Sistem memakai sensor DHT22 dan MQ-2 yang dikalibrasi untuk mengukur suhu, kelembapan, dan gas. Jika ambang suhu 40°C atau gas 300 ppm terlampaui, buzzer aktif dan notifikasi dikirim. Pengujian menunjukkan sistem stabil dengan delay 397–484 ms, throughput 1,64–3,38 kbps, dan tanpa packet loss. Sistem ini efektif mendeteksi kebakaran lebih awal dan mempercepat respons petugas di lapangan.
Implementation of a Fuzzy Logic Controlled Full Bridge SPWM Inverter for Lighting and Charging Applications Dionova, Brainvendra; Permana, Muhammad Zidan Regi; Vresdian, Devan Junesco; Pratama, Legenda Prameswono; Jaenul, Ariep; Nugraha, Dian; Mohammed, M. N.
Jurnal Teknologi dan Manajemen Vol. 23 No. 2 (2025): Jurnal Teknologi dan Manajemen (August)
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v23i2.428

Abstract

As energy sources continue to dwindle, they have garnered significant attention, prompting the government to set a target of at least 31% of Indonesia's total energy consumption coming from renewable sources. This study focuses on developing an inverter, a device that converts direct current (DC) into alternating current (AC), utilizing a 12V/100Ah battery to support a 150-watt AC load. The proposed inverter adopts a full-bridge configuration with single-phase sinusoidal pulse width modulation (SPWM) and incorporates a fuzzy logic controller to ensure stable output voltage. The implementation results indicate that the designed full-bridge inverter produces a steady output aligned with the input from a 12V LiFePO4 battery, as confirmed by data collection which compared the output with and without control, showing that the controlled system yields a more stable output. The testing results of the full-bridge inverter using the SPWM method indicate that the system can produce an AC output voltage of 221–224 V with a frequency of 50 Hz, in accordance with the established standards. In contrast, during testing without control, the output voltage ranged only between 145–147 V with a frequency of 99.18 Hz, which does not meet operational standards. These results clearly demonstrate the effectiveness of the fuzzy controller in maintaining both voltage and frequency stability under varying operating conditions. By accurately adjusting the system response, the fuzzy controller ensures that the inverter consistently delivers output within the desired standard range, thereby enhancing the overall performance and reliability of the system.
Co-Authors Abdullah, Muhammad Irsyad Abdulrazaq, Mohammed N. Adi Nugroho Agnemas Yusoep Islami Al-Humairi, Safaa Najah Sahud Al-Humairi, Safaa Najah Saud Al-yousif, Shahad Anindya Ananda Hapsari Ariansa, Hasri Ariep Jaenul Arisa Olivia Putri Balamaru, Bakti Brainvendra Widi Dionova Chatarina Umbul Wahyuni Dian Nugraha Dionova, Brainvendra Dwiana Hendrawati Eko Supriyono, Eko Faizah, Safira Hamzah Eteruddin Hamzah Hamzah Hutagalung, Nirmalasari Jaharadak, Adam Amril Jonathan, Abraham Dhayan KOKO Manfaluthy, Mauludi Maulana, Muhamad Waldi Mohammed, M. N. Nugraha, Kevin Setya Nugroho, Feri Permana, Muhammad Zidan Regi Rahmanda, Ibnu Dwi Setiawan, Antonius Darma Setyono, Rizka Sabila Sobar, Dedi Sundari, Delta Trisnaaji, Pius Adrian Vresdia, Devan Junesco Vresdian, Devan Junesco Wilyanti, Sinka Yanuar Zulardiansyah Arief Yasya Khalif Perdana Saleh Zuhriyah, Halimatuz