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All Journal JMM (Jurnal Masyarakat Mandiri) Engineering Science Letter eProceedings of Engineering Buletin Pos dan Telekomunikasi
Arif Abdul Aziz
Telkom University
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

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RFID Tag-equipped Drone for Antenna Array-based Localization: A Step-by-Step MATLAB Simulation Tutorial Arif Abdul Aziz; Muhammad Miftahul Amri
Engineering Science Letter Vol. 1 No. 02 (2022): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.418 KB) | DOI: 10.56741/esl.v1i02.161

Abstract

In the last decades, Radio Frequency Identifiers (RFID) has gained massive popularity.In the last decades, Radio Frequency Identifiers (RFID) have gained massive popularity. RFID technology allows data to be encoded in a small form (tag). The data contained inside the RFID tag can be captured wirelessly by the RFID reader through electromagnetic (EM) waves. On the other hand, localization techniques have achieved significant developments in the last decade. There is a wide range of localization tool variations, including satellite-based localization (i.e., GPSS, GLONASS), Bluetooth Low Energy (BLE), IMU, camera, infrared sensor, and even RF-based localization. In this work, we present an accurate localization technique via battery-less passive RFID tag-UAV integration. We have employed two low-complexity methods: generalized cross-correlation with phase transformation (GCC-PHAT) algorithm and triangulation technique. By simulation, we have validated that an accurate antenna array-based dynamic localization can be realized. For the sake of simplicity, we only demonstrate two-dimensional movement. However, the identical method can also be used in the three-dimensional movement. While this paper considers only two antenna arrays and one RFID tag, the proposed concept can be expanded to a more extensive system with a larger number of antenna arrays and RFID tags.
PEMENUHAN KEBUTUHAN MEDIA PEMBELAJARAN DI SEKOLAH ALAM DENGAN MENGIMPLEMENTASIKAN SISTEM PEMANTAUAN KOLOM IKAN DI BEBERAPA TITIK BERBASIS IOT Istiqomah Istiqomah; Arif Abdul Aziz; Achmad Rizal; Muhammad Fahriza Bahrudin; Soediponegoro Soediponegoro; Azriansyah Azriansyah; Achmad Ibnu Abas; Muhammad Yusuf Salman
JMM (Jurnal Masyarakat Mandiri) Vol 7, No 4 (2023): Agustus
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v7i4.16318

Abstract

Abstrak: Di sekolah alam process pembelajaran mengedepankan interaksi dengan alam. Terkadang sekolah alam memiliki beberapa fasilitas sebagai media pembelajaran yang berhubungan dengan alam seperti kolam. Tidak terkecuali di Sekolah Alam Gaharu sebagai mitra di pengambdian masyarakat ini. Sekolah Alam Gaharu yang memiliki beberapa kolam ikan yang digunakan untuk fasilitas observasi alam. Untuk mempermudah fasilitas tersebut digunakan sebagai media pembelajaran, Sekolah Alam Gaharu membutuhkan satu sistem pemantauan semua kolam dan media belajar. Oleh karena itu, untuk memenuhi kebutuhan tersebut, dikembangkan satu sistem pemantauan kolam ikan dibeberapa titik untuk parameter keasaman dan temperature air kolam yang terintegrasi oleh satu sistem IoT. Sistem yang diterapkan sebagai solusi di Sekolah Alam Gaharu adalah dua sensor node yang digunakan untuk mengakuisisi data PH dan temperatur dan satu sistem gateway sebagai sistem integrasi kedalam satu sistem IoT. Kemudia semua parameter PH dan temperatur kolam dapat dipantau di aplikasi android. Untuk mengetahui apakah sistem berjalan sesuai kebutuhan Sekolah Alam Gaharu, dilakukan survei umpan balik ke guru sekolah tersebut. Dari Umpan balik yang dilakukan ke lima belas guru, didapatkan respon bahwa seluruh guru sangat setuju bahwa semua komponen sistem yang telah diimplementasikan sangat membantu dalam process pembelajaran. Seluruh responden menyatakan sangat setuju 100% bahwa sistem mampu membantu process pembelajaran di Sekolah Alam Gaharu. Abstract: In natural schools, the learning process emphasizes interaction with nature. Sometimes natural schools have several facilities as learning media related to nature, such as ponds. Gaharu Natural School is no exception as a partner in this community service. Gaharu Nature School has several fish ponds used as natural observation facilities. Gaharu Natural School requires a monitoring system for all ponds and learning media to make it easier for these facilities to be used as learning media. Therefore, to meet these needs, a fish pond monitoring system has been developed at several points for the parameters of acidity and pond water temperature, which are integrated by an IoT system. The system implemented as a solution at the Gaharu Natural School is two sensor nodes used to acquire PH and temperature data and a gateway system as an integration system into an IoT system. Then all PH and pool temperature parameters can be monitored in the Android application. A feedback survey was conducted on the school's teachers to determine whether the system is running according to the needs of the Gaharu Natural School. From the feedback provided to the fifteen teachers, the responses were obtained that all teachers strongly agreed that all the components of the system that had been implemented were very helpful in the learning process. All respondents strongly agreed 100% that the system could assist the learning process at Gaharu Natural School. 
Reconfigurable Intelligent Surface-Assisted RF Wireless Power Transfer for Internet of Things System: Modeling and Evaluation Arif Abdul Aziz; Istiqomah; Suratman, Fiky
Buletin Pos dan Telekomunikasi Vol. 22 No. 1 (2024): June 2024
Publisher : Centre for Research and Development on Resources, Equipment, and Operations of Posts and I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17933/bpostel.v22i1.396

Abstract

This work studies the utilization of reconfigurable intelligent surfaces (RIS) for assisting radiofrequency (RF)-based wireless power transfer (WPT) in the Internet of Things (IoT) system. The RIS device in this system is utilized to provide the line of sight (LOS) path when an obstacle blocks the direct power transmission from the transmitter to the receiver. This work presents a comprehensive modeling of the RIS-assisted RF WPT for IoT systems, which includes the spatial model, the RIS-assisted RF WPT model, and the total receiver power model. The performance of RIS-assisted RF WPT is evaluated by simulation matched to the IoT system. In all simulation tests, the obstacle is located between the transmission and the receiver, eliminating direct power transfer. By simulation, it has been verified that the RIS device can assist the RF WPT in the IoT system. The receiver can achieve 0,4714% power transfer efficiency at a distance of 1 meter from the RIS device. Meanwhile, 0,0290% power transfer efficiency is achieved within a 15-meter distance from the RIS device. Furthermore, the performance of RIS-assisted RF WPT with various numbers of unit cells in the RF WPT system is investigated. It has been found that increasing the number of unit cells in RF WPT after a certain number is ineffective for the RF WPT in an IoT system
PENERAPAN PANEL SURYA SEBAGAI MEDIA PEMBELAJARAN ENERGI TERBAHARUKAN DAN ENERGI LISTRIK TAMBAHAN DI SEKOLAH ALAM GAHARU Istiqomah Istiqomah; Arif Abdul Aziz; Achmad Rizal; Muhammad Fahriza Bahrudin; Soediponegoro Soediponegoro; Azriansyah Azriansyah; Naufal Widad Sundawa; Abdillah Nur Isnaini; Vincentius Adisurya Fransisco Antu
JMM (Jurnal Masyarakat Mandiri) Vol 8, No 2 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v8i2.21562

Abstract

Abstrak: Sekolah Alam mengedepankan alam sebagai aspek utama objek pembelajaran, sehingga kewajiban menjaga alam menjadi hal penting untuk diajarkan ke peserta didik. Salah satu upaya untuk menjaga alam adalah dengan menggunakan energi baru dan terbarukan sebagai alternatif energi bersih. Sehingga hal tersebut menjadi misi yang sedang digiatkan di Sekolah Alam Gaharu. Pada pelaksanaan kegiatan pengabdian masyarakat ini, tim berusaha memenuhi kebutuhan sekolah alam yaitu penerapan EBT berupa panel surya sebagai media pembelajaran dan energi listrik tambahan untuk kegiatan outdoor di sekolah alam tersebut. EBT yang diterapkan adalah panel surya yang kiranya mudah dirancang menyesuaikan kebutuhan Sekolah Alam Gaharu. Panel surya yang menghasilkan listrik DC diintegrasikan dengan sistem lain seperti Aki dan inventer DC ke AC agar catu daya bisa langsung digunakan perangkat elektronik di Sekolah Alam Gaharu. Diharapkan kegiatan masyarakat ini menjadi media pembelajaran EBT di Sekolah Alam Gaharu. Diakhir kegiatan akan ada survei kepada 15 guru di Sekolah Alam Gaharu untuk melihat keefektifan penerapan panel surya sebagai media pembelajaran di sekolah alam. Dari hasil survei yang dilakukan tersebut disimpulkan 100% kegiatan memenuhi kebutuhan dari Sekolah Alam Gaharu.Abstract: The Nature School prioritizes nature as the main aspect of learning objects, so the obligation to protect nature is an important thing to teach to students. One effort to protect nature is to use new and renewable energy as a clean energy alternative. So this has become a mission that is being carried out at the Gaharu Nature School. In carrying out this community service activity, the team tried to meet the needs of the natural school, namely the application of new renewable energy in the form of solar panels as a learning medium and additional electrical energy for outdoor activities at the natural school. The new renewable energy implemented is solar panels which can be easily designed to suit the needs of the Gaharu Nature School. Solar panels that produce DC electricity are integrated with other systems such as batteries and DC to AC inverters so that the power supply can be directly used by electronic devices at Alam Gaharu School. It is hoped that this community activity will become a medium for new renewable energy learning at Gaharu Nature School. At the end of the activity there will be a survey of 15 teachers at Gaharu Nature School to see the effectiveness of implementing solar panels as a learning medium in natural schools. From the results of the survey conducted, it was concluded that 100% of the activities met the needs of the Gaharu Nature School.
SISTEM PEMANATAUAN AKUAPONIK UNTUK MEDIA PEMBELAJARAN DI SEKOLAH ALAM GAHARU Istiqomah, Istiqomah; Aziz, Arif Abdul; Rizal, Achmad; Patriananda, Teguh; Isnaini, Abdillah Nur; Hanaf, Mayco Ikhsan; Baihaqi, Zaidan Fitra; Sriastiti, Ni Kadek Cindy
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.29355

Abstract

Abstrak: Sekolah Alam Gaharu merupakan sekolah alam yang mengutamakan interaksi siswa dengan alam dalam process pembelajarannya. Salah satu fasilitas yang disediakan oleh Sekolah Alam Gaharu adalah sistem akuaponik sebagai media belajarnya. Untuk mengoptimalkan akuaponik sebagai media belajar, pada kegiatan pengabdian masyarakat ini dikembangkan dan diimplementasikan sistem pemantauan akuaponik berbasis IoT sebagai media pembelajaran STEM di Sekolah Alam Gaharu. Sistem ini memonitor parameter penting seperti pH dan suhu air yang dikirimkan ke cloud dan ditampilkan melalui website. Proses implementasi meliputi pengembangan alat, instalasi sistem, dan survei evaluasi kepada pengguna. Dari hasil survei mengenai sistem yang diimplementasikan sebagai media belajar terhadap 10 guru di Sekolah Alam Gaharu menunjukkan bahwa sistem ini diterima dengan baik, dengan 80% responden menyatakan sangat setuju dan 20% setuju bahwa sistem tersebut mendukung pembelajaran STEM. Selain memberikan wawasan praktis tentang keberlanjutan, sistem ini meningkatkan pemahaman siswa terhadap konsep STEM melalui pendekatan berbasis teknologi. Kegiatan ini berhasil menunjukkan bahwa IoT dapat menjadi solusi efektif untuk mendukung pendidikan berbasis alam.Abstract: Gaharu Nature School is a nature-based school that prioritizes student interaction with the environment in its learning process. One of the facilities provided by the school is an aquaponics system used as a learning medium. To optimize aquaponics as an educational tool, this community service activity developed and implemented an IoT-based aquaponics monitoring system as a STEM learning medium at Gaharu Nature School. The system monitors key parameters such as pH and water temperature, sending the data to the cloud and displaying it through a website. The implementation process included tool development, system installation, and a user evaluation survey. Results from a survey of 10 teachers at the school indicated that the system was well received, with 80% of respondents strongly agreeing and 20% agreeing that the system supports STEM learning. In addition to providing practical insights into sustainability, the system enhances students’ understanding of STEM concepts through a technology-based approach. This activity successfully demonstrated that IoT can be an effective solution to support nature-based education.
Rancang Bangun Perangkat Flow Meter Reading Analog Konevensional Ramdhani, Fiqri; Aziz, Arif Abdul; Fakhrurroja, Hanif
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PDAM is a regional company that provides water supply services to all residents of the Indonesian Community in need. PDAM checks the amount of water usage of each customer every month by sending officers to the customer's house to check and record the amount of water usage through the water meter. The water meters used by PDAM are still analog in nature so that customers experience difficulties in reading the amount of water usage [1]. Because water recording is still manual and analog tools. So to help development innovation, the first step is to create a PDAM water usage monitoring system in digital form. Flow Meter Reading is the development of a device that will be used to read analog water meters that measure fluid volumetric flow rates digitally. The use of manual water meters that are still manually recorded by employees will be helped by the presence of Analog Flow Meter Reading devices, Flow Meter Reading device design is carried out. The design is done by making a PCB design using a low power MCU STM32. Keywords-Water, PDAM Customer, Water Meter, Monitoring
Wearable Antenna Mikrostrip Untuk Aplikasi Teknologi 5g Nizar, Khairul; Nugroho, Bambang Setia; Aziz, Arif Abdul
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

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Abstract

Dalam era modern, Ilmu telekomunikasi mengalami kemajuan yang pesat dan berdampak pada beberapa aspek kehidupan manusia, termasuk pengurangan penggunaan kabel dalam akses telekomunikasi. Latar belakang munculnya wearable antenna adalah meningkatnya kebutuhan user akan mobilitas yang tinggi. Wearable antenna diharapkan dapat memberikan kenyamanan bagi penggunanya. Untuk menyelesaikan masalah ini, kami membuat <Wearable Antena Mikrostrip untuk Aplikasi Teknologi 5G= dengan memperhatikan beberapa hal. Pertama, desain antena mikrostrip harus menggunakan metode inset-feed pada frekuensi 3.5 GHz agar sesuai dengan teknologi 5G. Desain ini juga harus mempertimbangkan ukuran Wearable Antena Mikrostrip yang kecil, ringan, dan mudah dipasang pada pakaian agar dapat digunakan dalam kehidupan sehari-hari. Selanjutnya, penelitian dan pengembangan perlu dilakukan untuk meningkatkan gain wearable antenna mikrostrip. Tujuan utama dari wearable antenna ini adalah memudahkan manusia dalam menjalankan kehidupan sehari-hari dengan ukuran yang lebih kecil, ringan, dan dapat dipasang pada pakaian. Pengujian dilakukan pada wearable antenna 5G untuk frekuensi kerja 3,5 GHz dan nilai SAR _1,6 W/Kg. Berdasarkan pengujian didapatkan nilai VSWR 1.4815, return loss -11.332 db, bandwidth >351.4 dan gain 3.098 dB. Kata Kunci - Wearable, Antena, Mikrostrip, 5G
Wearable Antenna Mikrostrip Untuk Aplikasi Teknologi 5g Pradiya, Rizan; Nugroho, Bambang Setia; Aziz, Arif Abdul
eProceedings of Engineering Vol. 11 No. 4 (2024): Agustus 2024
Publisher : eProceedings of Engineering

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Abstract

In daily life, there are still many challenges related to the long-range signal transmission, such as Wi-Fi and Bluetooth, which have a limited range of around 10 meters. To address this issue, we have developed a "Wearable Microstrip Antenna for 5G Technology Applications" using the inset-feed method at a frequency of 3.5 GHz to align with the 5G technology standards. This usable microstrip antenna has drawbacks, such as low gain and surface waves that can affect radiation patterns. Therefore, we pay attention to the Specific Absorption Rate (SAR) values that are safe for the human body (1.6 W/kg) and employ a unidirectional radiation pattern to ensure safety when used on the human body. The primary objective of developing this antenna is to simplify human daily life with a smaller, lighter size that can be attached to clothing. Testing was conducted on the wearable antenna with an operating frequency of 3.5 GHz, ensuring that the SAR values remained below the safe limit of ≤1.6 W/kg. The test results revealed a VSWR value of 1.4815, a return loss of -11.332 dB, a bandwidth exceeding 351.4 MHz, and a gain of 3.098 dB. Keywords: Wearable, Antena, Mikrostrip, 5G
Co-Authors Abdillah Nur Isnaini Achmad Ibnu Abas Achmad Rizal Achmad Rizal Azriansyah Azriansyah Azriansyah Azriansyah Baihaqi, Zaidan Fitra Bambang Setia Nugroho Fakhrurroja, Hanif Fiky Y. Suratman Hanaf, Mayco Ikhsan Isnaini, Abdillah Nur Istiqomah Istiqomah istiqomah istiqomah Istiqomah Istiqomah Muhammad Fahriza Bahrudin Muhammad Fahriza Bahrudin Muhammad Miftahul Amri Muhammad Yusuf Salman Naufal Widad Sundawa Nizar, Khairul Patriananda, Teguh Pradiya, Rizan Ramdhani, Fiqri Soediponegoro Soediponegoro Soediponegoro Soediponegoro Sriastiti, Ni Kadek Cindy Vincentius Adisurya Fransisco Antu