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All Journal Jurnal Inovasi Mesin Journal Geuthee of Engineering and Energy
Khakim, Ainul
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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Integrated IoT System for Real-Time Electrical Load Monitoring Prasetyo, Yuli; Triwijaya, Santi; Khakim, Ainul; Prakoso, Dimas Nur; Winarno, Basuki
Journal Geuthee of Engineering and Energy Vol 4, No 1 (2025): Journal Geuthee of Engineering and Energy
Publisher : Geuthèë Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52626/joge.v4i1.57

Abstract

 The uncontrolled and excessive consumption of electrical energy, especially in households, often leads to significant energy waste. This issue adversely affects both consumers and electricity providers such as PLN. To address this problem, a system titled "Centralized Monitoring and Control Based on Load Characteristics Using the Internet of Things (IoT)" was developed. This system is designed to monitor and control household electrical loads in real time. The system consists of a PZEM-004T sensor for measuring voltage, current, power, energy usage, frequency, and power factor. An Arduino microcontroller processes the sensor data, while an ESP32 module transmits the data to an online database. A relay module is used to control electrical devices remotely. The data is stored in a database and visualized through a web-based interface, which also enables users to download monitoring reports in PDF or Excel formats. Testing results showed that the system operates with high accuracy. When compared to a standard power analyzer, the measurement error for parameters such as voltage, current, frequency, and power factor remained low, with a maximum error of only 1.9%. It demonstrates the system’s potential for efficient energy monitoring and management in residential settings.
Analisa Produktivitas Mesin Dan Merancang Improvement Mesin Produksi Di Line Forming Fastener PT Dharma Polimetal Subhan, Aan; Khakim, Ainul; Pangestu, Gayuh
Jurnal Inovasi Mesin Vol 5 No 2 (2023): OKTOBER 2023
Publisher : Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v5i2.70036

Abstract

Abstrak __________________________________________________________________________________________ Tujuan penelitian ini adalah mengetahui tahapan alur produksi di Divisi Fastener PT Dharma Polimetal. Mengetahui tahapan proses forming dalam divisi Fastener PT Dharma Polimetal. Mengetahui permasalahan yang timbul di line forming Fastener PT Dharma Polimetal. Mengetahui penyebab akar permasalahan yang timbul di line forming Fastener PT Dharma Polimetal. Mengetahui rancangan rencana perbaikan untuk permasalahan di line forming Fastener PT Dharma Polimetal. Divisi Fastener merupakan salah satu bisnis produksi di PT Dharma Polimetal yang berfokus untuk memproduksi produk-produk pengencang. Untuk produk yang dihasilkan di Divisi Fastener ini antara lain Bolt Flange 6 mm, Bolt Torx m8 x 25 mm, Screw Tapp 5 x 12, Bolt Flange m10 x 190, dan lain-lain. Dengan dibuatnya penelitian ini peneliti dapat mengetahui produktivitas mesin di line forming di Divisi Fastener PT Dharma Polimetal, menganalisa faktor-faktor produksi yang mempengaruhi produktivitas line forming Divisi Fastener PT Dharma Polimetal, dan merumuskan rancangan perbaikan untuk meningkatkan produktivitas line forming Divisi Fastener PT Dharma Polimetal. Abstract __________________________________________________________________________________________ The purpose of this study was to determine the stages of the production flow in the Fastener Division of PT Dharma Polimetal. Knowing the stages of the forming process in the Fastener division of PT Dharma Polimetal. Knowing the problems that arise in the PT Dharma Polimetal Fastener line forming. Knowing the root cause of the problems that arise in the PT Dharma Polimetal Fastener line forming. Knowing the draft improvement plan for problems in the PT Dharma Polimetal Fastener line forming. The Fastener Division is one of the production businesses at PT Dharma Polimetal which focuses on producing fastener products. The products produced in the Fastener Division include Bolt Flange 6 mm, Bolt Torx m8 x 25 mm, Screw Tapping 5 x 12, Bolt Flange m10 x 190, and others. With this research, researchers were able to determine machine productivity in line forming in the Fastener Division of PT Dharma Polimetal, analyze the production factors that affect the productivity of line forming in the Fastener Division of PT Dharma Polimetal, and formulate improvement plans to increase the productivity of line forming in the Fastener Division of PT Dharma Polimetal.
Development of an internet of things-based monitoring system for small vertical axis wind turbine Prasetyo, Yuli; Triyono, Budi; Artono, Budi; Triwijaya, Santi; Khakim, Ainul; Ramadhan, Ade Nofa
Journal Geuthee of Engineering and Energy Vol 4, No 2 (2025): Journal Geuthee of Engineering and Energy
Publisher : Geuthèë Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52626/joge.v4i2.65

Abstract

Small-scale wind turbines often face challenges related to low energy conversion efficiency and the lack of adequate monitoring and automatic protection systems against fluctuating weather and load conditions. This study presents the design and implementation of an Internet of Things (IoT)-based monitoring and protection system for a Small Vertical Axis Wind Turbine (VAWT). The system utilizes Arduino Uno and NodeMCU ESP8266 microcontrollers integrated with INA219, LM35, anemometer, infrared, and DC voltage sensors. Data acquisition and transmission are managed through Wi-Fi communication and displayed on the ThingSpeak web platform for real-time visualization. Experimental testing demonstrated that the system successfully measured and transmitted voltage, current, power, wind speed, temperature, and rotational speed parameters with an average data transmission latency of less than 3 seconds. The protection mechanism activated effectively under simulated abnormal conditions such as over-speed and over-temperature, automatically disconnecting the load to prevent turbine damage. The measurement accuracy for INA219 voltage and current sensors reached ±0.2 V and ±0.05 A, while temperature detection with LM35 had an average deviation of ±0.8 °C. The results indicate that the proposed IoT-based VAWT monitoring system is capable of providing reliable, low-cost, and real-time supervision suitable for small-scale renewable energy applications. Furthermore, it can be used as a learning prototype in vocational education to understand the integration of renewable energy and IoT technologies.
Co-Authors Basuki Winarno, Basuki Budi Artono Budi Triyono Dimas Nur Prakoso Pangestu, Gayuh Ramadhan, Ade Nofa Subhan, Aan Triwijaya, Santi Yuli Prasetyo