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All Journal JiTEKH (Jurnal Ilmiah Teknologi Harapan)
Redi Ratiandi Yacoub
Universitas Tanjungpura, Pontianak
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering

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Implementasi Node Bridge Untuk Meningkatkan Komunikasi Multi-Node Modul NRF24L01 Pada NLOS Abdi Purwanto; Redi Ratiandi Yacoub; Neilcy Tjahjamooniarsih
JITEKH Vol 12 No 1 (2024): March 2024
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v12i1.896

Abstract

Multi-node communication is an important aspect in wireless system development, especially in the context of non-line of sight communications. In this study, we explore the implementation of multi-node communication with bridge nodes to increase distance and reduce packet loss in the NRF24L01 transceiver module. The aim of writing this manuscript is to evaluate the effectiveness of using bridge nodes in improving the quality of multi-node communications on the NRF24L01 module in non-line of sight conditions. This study was carried out through a series of multi-node communication tests with certain configurations, including maximum power usage, 250kbps bit rate, and 5dBi antenna. Tests were carried out at different distances with and without the use of bridge nodes to compare communication performance. Our findings show that a configuration with three client nodes and an NRF24L01 module equipped with a 5dBi antenna is capable of achieving the longest distance of up to 125 m. In non-line of sight conditions, the packet loss rate at a distance of 25-75 m has very good communication quality, with packet loss values ranging from 0-6%. However, at a distance of 100 m, the packet loss percentage exceeds the threshold (15%). The use of bridge nodes succeeded in significantly reducing the packet loss rate, reducing the percentage of packet loss at client nodes C1, C2, and C3 to 6.00%, 6.67%, and 6.33% respectively. Thus, implementing the bridge node has proven effective in improving the quality of communication on the NRF24L01 module in non-line of sight conditions.
Implementasi Sistem Tranduser pada Peringatan Dini Banjir Berbasis Telegram Widia Tri Astuti; Redi Ratiandi Yacoub; Jannus Marpaung
JITEKH Vol 12 No 1 (2024): March 2024
Publisher : Universitas Harapan Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35447/jitekh.v12i1.909

Abstract

Floods as natural disasters are occurrences that can happen at any time and often result in loss of life and significant material damage. This research focuses on developing a transducer system for river water level monitoring based on Long Range Wireless Communication Technology and Internet of Things (IoT). The aim is to provide early warnings regarding river water levels, enabling the community to be more vigilant and minimize potential damage in the event of rising water levels. The research methodology involves utilizing a multiturn potentiometer in conjunction with Nodemcu ESP8266 and LoRa SX1278 devices. The results of the transducer system testing in a relevant environment showed an average difference of 0.27 cm, while testing in actual river water or real-world conditions yielded an average difference of 0.61 cm. The LoRa SX1278 testing at distances of 20 meters and 40 meters demonstrated a Packet Delivery Ratio (PDR) of 100% and a packet loss of 0%, indicating successful data reception. However, at a distance of 60 meters, the PDR was 90%, with a 10% packet loss, and at 70 meters, the PDR dropped to 10%, with a packet loss of 90%. This system includes Telegram notifications to allow users to access information on water levels as an early warning
Co-Authors Abdi Purwanto Jannus Marpaung Neilcy Tjahja Mooniarsih Widia Tri Astuti