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All Journal Jurnal EECCIS Best : Journal of Applied Electrical, Science and Technology
Puteri Nurul Magfirah
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Physics

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Design of Online Electric Power Monitoring For Street Vendors Sri Rahayu, Endang; Puteri Nurul Magfirah; Reza Diharja
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 18 No. 2 (2024)
Publisher : Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v18i2.1684

Abstract

Street vendors are merchants who sell their goods on the sidewalk in front of shops or along the roadside. The common selling locations are typically on the front porch of a shop, and they obtain electricity by paying a rental fee to the owner. Owners of these shopfront spaces, providing the electrical supply, still employ conventional payment systems based on agreements between the owner and the user. The advancement of Internet of Things (IoT) technology has begun to support automatic and more accurate power monitoring systems. The objective of this research is to develop an online power monitoring system for street vendors based on RFID sensors and Telegram. It relies on the ESP32 microcontroller as the control system and the PZEM-004T sensor to measure current, voltage, and total power consumption. The implementation results show a measurement accuracy level of 99.1% for voltage, 99.66% for current, 91% for power, and 100% for energy. Purchasing, recharging, and monitoring of electrical energy were successfully conducted through the Telegram Bot. Additionally, the Telegram Bot successfully sends alerts in case of power leaks and when the electricity token is running out. The error rate in the measurement and monitoring of electrical energy used in the system is 0%.
Design, Build, and Implement Monitoring Applications Student Grades and Violations Puteri Nurul Ma'rifah; Achmad Zain Nur; Luthfi Awwalia; Wildan Surya Wijaya; Puteri Nurul Magfirah
BEST Vol 7 No 1 (2025): BEST
Publisher : Universitas PGRI Adi Buana Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36456/best.vol7.no1.10198

Abstract

Information and communication technology development has entered the era of Industry 4.0, requiring the educational sector to adapt more rapidly and efficiently. Thus, information technology has been integrated into various learning activities. However, the monitoring of information on students' learning progress is mostly carried out by the schools, while parents typically receive report cards at the end of the term. This does not provide effectiveness, as it limits parental involvement in early supervision. This research is designed to help both teachers and parents in supervising students more directly. This research utilizes NFC (Near Field Communication) technology for recording student attendance at school. Based on the results of application testing, users gave high ratings to the system in terms of interface design, NFC card reading accuracy, ease of managing student permissions, recording student behavior and academic grades, as well as the tool’s completeness and functionality. The average success rate of horizontal NFC card reading reached 100%, while vertical reading achieved 90%. The maximum reading distance was 4 cm for Samsung A50s (version 10.0) and Samsung A30s (version 10.0), and 3 cm for the Redmi Note 8 Pro (version 9.0).
Co-Authors Achmad Zain Nur Endang Sri Rahayu, Endang Luthfi Awwalia Puteri Nurul Ma'rifah Reza Diharja Wildan Surya Wijaya