Claim Missing Document
Check
Articles

Found 3 Documents
Search

Prototype Design of a Fishing Boat Safety Monitoring System Using LoRa and Microsensor Devices Sugiarto, Eka; Suhendi, Asep; Abdussalam, M. Yusup; Husniah, Zahira Aulia; Lestari, Annisa Puji
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol. 10 No. 2 (2023): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v10i2.6805

Abstract

This paper reports a prototype of a low-cost tracking and monitoring system to address the challenges faced by Indonesian fishermen. The lack of safety equipment in their boats exposes them to high risks of work-related accidents and illnesses. Data from the National Basarnas Center reveals a staggering 24,000 annual fatalities among fishermen during their activities. These issues stem from a combination of factors: poorly designed boats, low prioritization of safety, and the lack of readily available preventive measures. Moreover, the development of telecommunications infrastructure in aquatic areas presents its unique obstacles. In response, this study proposes a prototype design for a "Fishing Boat Safety Monitoring System" utilizing LoRa and Microsensors for proactive and preventive measurement by tracking the boat position and sending the data via a long-distance wireless transmission with Low-Power Wide Area Network (LPWAN) scheme based on frequency-spread spectrum technology. This LPWAN serves as the substitution for cellular network which is usually not available in the ocean. The tracking system uses a low-cost TTGO T-Beam LoRa32 V1.1 Microcontroller Unit (MCU) board that has an embedded SX1276 LoRa module and Neo-6M GPS module. The system also uses a GY-25 gyroscope microsensor. The system implemented a 923 MHz LoRa signal for point-to-point communication between the transmitter to receiver. This research has successfully yielded a developed device capable of tracking the location of boats up to 2 km from the shoreline with -113 dBm received signal strength indicator (RSSI) and around 60% of data quality of service (QoS). Further research will explore the use of high-gain antennas and signal amplifiers integration with embedded LoRa on the MCU board to expand the coverage area of the LoRa signal.
Valorization of coal fly ash for the synthesis of lithium nickel-cobalt-aluminum-iron oxide (NCAF) cathode material Yudha, Cornelius Satria; Rahmawati, Aleida Dwi; Sumarti, Ragil; Muzayanha, Soraya Ulfa; Lestari, Annisa Puji; Arinawati, Meidiana
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60829

Abstract

This study demonstrates a novel approach to high-performance cathode materials by utilizing coal fly ash as a source of Al and Fe dopants for nickel-rich layered oxides. LiNixCoyAlzFe(1-x-y-z)O2 (NCAF) materials were synthesized through a combined hydrometallurgical-solid state route, incorporating fly-ash waste-derived Al/Fe hydroxides (AFH) at various concentrations during the lithiation process. The characteristics of NCAF precursors, AFH and Ni0.8Co0.2C2O4, were thoroughly investigated. Structural analysis confirms the successful formation of single-phase materials with α-NaFeO2 structure (R-3m) up to 5% AFH content, exhibiting changes in the level of order, lattice parameters, and unit cell volume. Surface area characteristics show a transition from 38.747 m²/g to 6.52 m²/g with increasing AFH content, approaching the ideal surface area. The compositional evolution from LiNi0.8Co0.2O2 to LiNi0.66Co0.16Al0.08Fe0.10O2 maintains uniform atomic distribution. In the full-cell configuration with graphite anodes (N/P ratio: 1.2-1.3), NCAF with 5% AFH demonstrates enhanced electrochemical performance (~155 mAh/g), attributed to synergistic effects of Al-induced structural stabilization and Fe-contributed redox activity. This approach establishes a pathway for simple and low-cost battery material development while addressing industrial waste utilization.
Pemberdayaan Masyarakat Desa Bojongsari melalui Smart Edufarm berbasis Internet of Things dalam Mewujudkan Ketahanan Pangan Bangsa Lestari, Annisa Puji; Zahra Hana, Risma; Salam, Muhammad Yusup; Sugiarto, Eka; Aulia Husniah, Zahira; Sa'idah, Sofia
Inovasi Jurnal Pengabdian Masyarakat Vol 1 No 3 (2023): IJPM - Desember 2023
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/ijpm.275

Abstract

Tingkat produktivitas masyarakat Desa Bojongsari masih rendah, khususnya terkait bidang pertanian yang sebenarnya memiliki potensi yang besar. Pengetahuan dan keterampilan masyarakat Desa Bojongsari di bidang pertanian juga masih kurang sehingga belum tercapai ketahanan pangan tingkat desa. Smart Edufarm dilaksanakan sebagai program pemberdayaan masyarakat yang berfokus untuk mewujudkan ketahanan pangan keluarga melalui kegiatan pertanian berkelanjutan. Tujuan dari diadakannya program ini adalah meningkatkan ketahanan pangan masyarakat, meningkatkan produktivitas masyarakat, mewujudkan wirausaha bidang pertanian, serta meningkatkan pengetahuan dan keterampilan masyarakat. Metode yang digunakan melibatkan tahap persiapan, tahap pengenalan, tahap pendidikan bagi pelajar dan ibu rumah tangga, serta tahap pendampingan dan konsultasi untuk masyarakat sasar. Hasil program Smart Edufarm terbukti mampu meningkatkan pemahaman masyarakat terhadap hidroponik, akuaponik, bedengan, dan Internet of Things (IoT) sebesar 90%. Kemudian terkait dengan penggunaan lahan di PKBM Schole Fitrah yang semula tidak produktif menjadi produktif. Selanjutnya, keterlibatan hubungan antarmasyarakat sasaran yang semula kurang dekat menjadi solid. Selain itu, kegiatan masyarakat menjadi lebih produktif. Hasil yang terakhir yakni dapat memunculkan lini usaha baru di bidang pertanian yang semula tidak ada.