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Integration of Temperature and Weather Sensors with LORA Technology for Real-Time Monitoring Systems in Basin Cooling Tower Rinaldo, Muhammad Agus; Ariandi, Muhammad; Paramytha, Nina; Dasmen, Rahmat Novrianda
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 1 (2026): Januari - Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i1.34492

Abstract

— The cooling system of geothermal power plants (PLTP) critically depends on cooling towers, particularly the basin as the reservoir for cooled water to be recirculated into the system. Real-time monitoring of basin water temperature and weather conditions is essential for maintaining operational efficiency and prolonging equipment lifespan. Manual observation and wired systems are limited in terms of range and response time, prompting the need for a more advanced monitoring solution. This article describes the development and implementation of a LoRa-based monitoring  system that integrates temperature and weather sensors in the cooling tower basin of a geothermal power plant. The research was conducted through literature reviews, direct observation, consultations with experts, and comprehensive field testing of both hardware and software under various operational scenarios. The designed system consistently transmits temperature and weather sensor data with a success rate exceeding 95%, and achieves an effective transmission range of 400–500 meters in open geothermal areas. Implementation of this system results in increased data acquisition speed, improved energy efficiency, and enhanced monitoring accuracy, supporting faster technical responses and better risk management. Evaluation results confirm that the LoRa-based solution functions optimally and is highly applicable for deployment in challenging and remote geothermal industrial environments.
Designing Wemos and GPS-based Wireless Communication Gloves to Prevent Group Members from Getting Lost Pratama, Achmad Alfath; Paramytha, Nina; Fitriani, Endah; Dasmen, Rahmat Novrianda
Jambura Journal of Electrical and Electronics Engineering Vol 8, No 1 (2026): Januari - Juni 2026
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v8i1.34491

Abstract

Group travel in densely populated areas presents risks of losing members, especially during peak periods such as weekends. This study aims to develop a wireless communication glove device as an aid for inter-member detection to prevent loss during travel. The method involves designing a device based on the Wemos microcontroller integrated with GPS sensors for position tracking, MAX30100 heartbeat sensor for health monitoring, an OLED I2C display as visual interface, and a buzzer as alarm. The system functions by identifying unique IDs between devices within a certain radius and triggers an alarm when connection is lost. Testing results indicate the heartbeat sensor accuracy with an average deviation of less than 3 bpm compared to manual measurements. Maximum connection distance without physical obstacles ranges from 24 to 26 meters, decreasing to 18 meters with wall obstructions. The master device detects connection loss within approximately 20 seconds, indicated by an audio alarm and display changes on the OLED screen. The estimated operational duration is 5.5 hours at 2.4 Watts power consumption. Overall, this device effectively prevents member loss with simple health monitoring and reliable connection detection features.