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All Journal Publikasi Pendidikan JTERA (Jurnal Teknologi Rekayasa) Jurnal Teknik DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Indonesian Journal of Electrical Engineering and Computer Science JTIULM (Jurnal Teknologi Informasi Universitas Lambung Mangkurat) Tematik : Jurnal Teknologi Informasi Komunikasi JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Industrial Research Workshop and National Seminar EPSILON: Journal of Electrical Engineering and Information Technology Jurnal Isu Teknologi
Griffani Megiyanto Rahmatullah
Politeknik Negeri Bandung
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Other

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PROTOTYPE OF A DESKTOP-BASED COMMUNICATION APPLICATION USING A DELAY TOLERANT NETWORK ARCHITECTURE Slameta; Ashari; Muh Haikal Pandia Situmorang; Kamal Falah Firdaus; Griffani Megiyanto R
Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM) Vol. 7 No. 2 (2022)
Publisher : Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtiulm.v7i2.133

Abstract

Currently, the process of exchanging information or data is carried out quickly, precisely, effectively and efficiently using the internet network. However, in reality, there are still some problems in areas that are difficult to get a signal, such as connection loss or unstable connection. One of the proposed solutions to anticipate this problem is the implementation of a network using the Delay Tolerant Network architecture. This architecture was chosen because of its basic capability, namely being able to send files even in a high delay state or used in areas with intermittent properties. The implementation carried out is making a chat application prototype that is able to function in intermittent areas and can be used for communication between sender and receiver in difficult signal conditions. The hardware used is a raspberry pi and supporting software using ION-DTN and traffic management designed using the python programming language. The application is tested by applying the concept of functionality testing, namely with full signal condition scenarios and limited signal conditions as a representation of the intermittent area. The test results show that the application is able to function based on the initial design with a delay with test variations of 1-10 minutes of signal dropout time. Further development can be done by adding a chat feature so that it is able to send more varied data.
PENGUJIAN RANGKAIAN SEKUENSIAL ISCAS’89 S641 MENGGUNAKAN SYNOPSYS TETRAMAX DAN METODE SCAN DESIGN Griffani Megiyanto Rahmatullah; Sarosa Castrena Abadi
Jurnal Online Sekolah Tinggi Teknologi Mandala Vol. 14 No. 2 (2019): Jurnal Isu Teknologi
Publisher : Sekolah Tinggi Teknologi Mandala Bandung

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

Abstract

Tahap yang paling penting dalam proses pembuatan sebuah chip adalah pengujian. Pengujian dilakukan untuk memastikan hasil rancangan sesuai dengan spesifikasi yang telah ditentukan. Proses pengujian juga dilakukan untuk mengidentifikasi fault yang muncul pada sebuah rangkaian. Algoritma yang dilakukan untuk menghasilkan test pattern pada rangkaian sequensial adalah scan chain. Rangkaian yang diuji adalah rangkaian s641 (ISCAS 89) dengan metode non scan, full scan, dan partial scan. Rangkaian s641 dioptimasi dan dimodifikasi terlebih dahulu dengan menggunakan Synopsys Design VisionTM. Seluruh D-Flip-Flop (DFF) pada rangkaian s641 diubah menjadi Scanable D-Flip-Flop (SDFF) dan kemudian ditambahkan scan-chain yaitu port scan-in, scan-out, dan scan-enable pada rangkaian. Hasil pengujian didapatkan nilai fault coverage untuk rangkaian s641 setelah dioptimasi bernilai diatas 95% dengan pengujian partial scan sequential ATPG menggunakan penggantian 3 SDFF. Apabila dilakukan penggantian sebanyak 15 SDFF, maka nilai fault coverage yang didapatkan mendekati 100% dengan pengujian yang sama.
Implementasi Purwarupa Aplikasi Komunikasi Menggunakan Jaringan Delay Tolerant Network Disertai Fleksibilitas Pemilihan Teknik Routing Slameta; Ashari; Rahmatullah, Griffani Megiyanto
TEMATIK Vol 10 No 1 (2023): Tematik : Jurnal Teknologi Informasi Komunikasi (e-Journal) - Juni 2023
Publisher : LPPM POLITEKNIK LP3I BANDUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38204/tematik.v10i1.1263

Abstract

Dalam konteks pertukaran informasi melalui jaringan internet, teknologi komunikasi memainkan peran yang sangat penting. Namun, implementasinya masih memiliki kekurangan, seperti putus koneksi, yang sering terjadi di daerah cakupan sinyal lemah atau intermittent. Sebagai solusi alternatif, teknologi jaringan wireless dapat memanfaatkan arsitektur Delay Tolerant Network (DTN) untuk mengatasi keadaan tersebut. Penelitian yang dilakukan merupakan pembuatan prototipe aplikasi komunikasi data dengan memanfaatkan penggunaan arsitektur DTN dengan implementasi pemilihan fitur routing seperti Epidemic, Spray and Wait, MaxProp, dan ProphetV2 Pembuatan aplikasi dibuat dengan menggunakan kustomisasi GUI sehingga memudahkan dalam hal pengiriman dan penerimaan data. Indikator penilaian yang diukur adalah jumlah berhasilnya pengiriman data pada setiap pilihan jenis routing serta keutuhan data pada pengiriman dan penerimaan informasi dengan jarak yang didefinisikan sedangkan media komunikasi yang digunakan yaitu media wireless. Sistem diuji menggunakan skenario uji berdasarkan kondisi sinyal penuh dan kondisi intermittent. Hasil pengujian menunjukkan bahwa aplikasi mampu berfungsi berdasarkan desain awal menggunakan jenis routing yang diatur dengan rata-rata variasi waktu berkisar 800-1000ms. Pengembangan lebih lanjut dapat dilakukan dengan melakukan implementasi pada perangkat mobile sehingga menjadi lebih fleksibel dan mudah untuk digunakan.
Prototipe Aplikasi Komunikasi Menggunakan Jaringan Delay Tolerant Network Pada Perangkat Seluler Android Slameta, Slameta; Ashari, Ashari; Rahmatullah, Griffani Megiyanto
TEMATIK Vol. 11 No. 1 (2024): Tematik : Jurnal Teknologi Informasi Komunikasi (e-Journal) - Juni 2024
Publisher : LPPM POLITEKNIK LP3I BANDUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38204/tematik.v11i1.1862

Abstract

In the current global context, the exchange of information through Internet networks has become increasingly vital, necessitating the effectiveness of communication technology. This is particularly true in areas with weak or unstable signal coverage such as intermittent areas. To address challenges such as frequent connection drops in these areas, Delay Tolerant Networking (DTN) architecture is offered as an alternative solution to overcome these problems. The conducted research aims to design and test a data communication application prototype using DTN architecture implemented on the Android operating system. The approach taken involves using the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) method. In detail, the application is implemented on the Android operating system and integrates various routing protocols such as Epidemic, Spray and Wait, MaxProp, and ProphetV2 to optimize data transmission and reception under varying network conditions. Data collection techniques include measuring latency and data transfer speed in predetermined testing scenarios, while data analysis techniques involve evaluating the measurement results to determine the effectiveness of the routing protocols used. Evaluation is conducted and the results showing an average latency between 800-1400ms and speeds of 100-400kbps, depending on the distance and varying network conditions. This study validates the effectiveness of DTN in maintaining consistent communication in challenging network environments. The impact of this research on the advancement of informatics is to pave the way for further development and adaptation of DTN technology in various mobile applications and data networks.
Fusion algorithms on identifying vacant parking spots using vision-based approach Adi, Ginanjar Suwasono; Nugroho, Hertog; Rahmatullah, Griffani Megiyanto; Fadhlan, Muhammad Yusuf; Mutamaddin, Dinan
Indonesian Journal of Electrical Engineering and Computer Science Vol 36, No 3: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v36.i3.pp1640-1654

Abstract

In densely populated cities, parking space scarcity results in issues like traffic congestion and difficulty finding parking spots. Recent advancements in computer vision have introduced methods to address parking lot management challenges. The availability of public image datasets and rapid growth in deep learning technology has led to vision-based parking management studies, offering advantages over sensor-based systems in comprehensive area coverage, cost reduction, and additional functionalities. This study presents an innovative fusion algorithm that integrates object detection with occupancy state algorithms to accurately identify vacant parking spaces. The employment of the YOLOv7 framework for vehicle instance segmentation, combined with three occupancy algorithms Euclidean distance (ED), intersection over reference (IoR), and intersection over union (IoU) are compared to determine the occupancy state of observed areas. The proposed method is evaluated using the CNRPark-EXT dataset, and its performance is compared with state-of-the-art methods. As a result, the proposed approach demonstrates robustness under varying conditions. It outperforms existing methods in terms of system evaluation performance, achieving accuracies of 98.88%, 97.99%, and 90.04% for ED, IoR, and IoU, respectively. This fusion detection method enhances adaptability and addresses occlusions, emphasizing YOLOv7’s advantages and accurate shape approximation for slot annotation. This study contributes valuable insights for effective parking management systems and has potential usage in the real-world implementation of intelligent transportation systems.
Co-Authors Abdurrahim, Muhammad Adi, Ginanjar Suwasono Ajeng Denita Khoerunnisa Aldiyans Nurcahyo Anak Agung Istri Sri Wiadnyani Anisa Pirana Ashari Ashari Ashari Ashari Ayat, Muhammad Enceng Sulaeman Eril Mozef Fadhlan, Muhammad Yusuf Fahmi Shihabuddin Zakaria Fajar Zulkarnain, Andry Ferry Satria Ferry Satria Fitri Novianti Ghania Yuntafa Putri Haidar, Andry Hanafi, Usman Hanifatunnisa, Rifa Idhamartya Wulani Irfan Fadillah Irvan Saputra Jericho P. Tarigan Kamal Falah Firdaus Khoeriyah, Riana Rika M. Reza Hidayat Maya Rahayu Maya Rahayu Maya Rahayu, Maya Mayer Mayer Mina Mina Naidah Gani Mohammad Farid S Mohammad Revi Prasetiyo Susanto Muchamad Ilham Fakhri Muh Haikal Pandia Situmorang Muhamad Rizki Muhammad Abdurrahim Muhammad Ayat Hidayat Mutamaddin, Dinan Nabila Alia Zahra Nila Nila Novita Sari Nugroho, Hertog Nuuru Alhusna Shufiya Putri Raka Satya Pratama Reynaldi Prayoga Riana Rika Khoeriyah Ridwan Solihin Sanam Herlambang Sarosa Castrena Abadi Satria, Ferry Slameta, Slameta Solly Aryza Supriyadi, Tata Taufik Irfan Triani Kamila A.S Usman B Hanafi Usman Hanafi Wirmanto Suteddy Yuliana, Hajiar Zidan Maulana Akbar ‪Usman Balugu Hanafi