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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) JOURNAL OF APPLIED INFORMATICS AND COMPUTING DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Nasional Teknologi Komputer The Indonesian Journal of Computer Science
Aries Pratiarso
EEPIS
Computer Science & IT Electrical & Electronics Engineering Engineering Social Sciences

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Pemanfaatan Alat Monitoring Kadar Air Pada Gabah untuk Peningkatkan Kualitas Panen Ahmad Zainudin; Tribudi Santoso; Ari Wijayanti; Aries Pratiarso; Amang Sudarsono; Haniah Mahmudah; Nur; Anang Budikarso; Nanang Syahroni; Hari Wahyuningrat S.; Anang Siswanto; Farel Juliansyah; Donny Farhan; Tri Susanti
DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 4 No 2 (2020)
Publisher : Politeknik Negeri Madiun

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Abstract

Indonesia merupakan salah satu negara agraris dimana sebagian besar penghasilan masyarakat Indonesia yaitu dari pertanian. Untuk mempertahan harga jual hasil pertanian, maka diperlukan perhatian khusus dalam penyimpanan hasil panen di gudang terutama kadar air hasil panen. Pada penelitian dalam bentuk kegiatan pengabdian kepada masyarakat ini dibuat sebuah alat monitoring kadar air pada gabah dengan memanfaatkan mikrokontroler node MCU dan sensor kadar air yang terhubung ke internet. Data monitoring kadar air disimpan pada database dan pengguna dapat mengaksesnya melalui perangkat smartphone pada halaman website. Sehingga pengguna dapat mengakses kondisi hasil panen mereka yang ada di gudang bisa dilakukan dimana saja. Kegiatan pengabdian masyarakat dilaksanakan di Desa Kampungbaru, Nganjuk. Berdasarkan hasil implementasi dan pengujian, hasil pembacaan sensor kadar air pada gabah sebesar 14% dapat dikirim ke server dan dapat diakses oleh pengguna menggunakan smartphone.
Transmisi Citra Menggunakan Joint LDPC Decoding Aries Pratiarso; M. Agus Zainuddin
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2009
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Metode transmisi citra menggunakan teknik Joint LDPC decoding merupakan teknik untuk mengirimkancitra menggunakan teknik diversitas dan pengkodean pengkoreksi kesalahan. Pada sisi pengirim, citradikompresi menggunakan algoritma SPIHT. Data citra terkompresi kemudian dikirimkan melalui kanal paralel.Hal ini ditujukan bila pada salah satu kanal terjadi gangguan dan data tidak bisa didekodekan, maka datamasih bisa diperoleh dari kanal lainnya. Hasil simulasi menunjukkan teknik joint LDPC decoding padatransmisi citra dapat meningkatkan kualitas citra rekonstruksi yang mampu memberikan coding gain sebesar1,3 dB untuk BER 10-4 terhadap single LDPC decoding. Penggunaan teknik joint LDPC decoding secara rataratamemberikan peningkatan PSNR sebesar 4,44 dB. Hasil tersebut menunjukkan bahwa metode yangdigunakan dapat meningkatkan performansi sistem transmisi citra.Kata Kunci: Joint LDPC decoding, kompresi citra SPIHT, kode LDPC, iterative decoding
Analisa Performansi Komunikasi Lora (Long Range) pada Sistem Monitoring Buoy di Laut Sa'adah, Nihayatus; Aries Pratiarso; Faridatun Nadziroh; Nailul Muna; Karimatun Nisa’; I Gede Puja Astawa; Tri Budi Santoso; Sultan Syahputra Yulianto
The Indonesian Journal of Computer Science Vol. 13 No. 6 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i6.4462

Abstract

LoRa (Long Range) is a leading technology in Low Power Wide Area Networks (LPWAN), ideal for Internet of Things (IoT) applications. Designed for long-range communication with low power consumption, LoRa is used in monitoring navigation buoys, critical aids in marine waters. An IoT-based monitoring system is essential for maintaining buoy functionality. LoRaWAN, with a range of 15 kilometers under line of sight (LoS) conditions, is employed for IoT connectivity in this system. In this study, 915 MHz LoRa communication was used in buoy monitoring, with performance evaluated based on signal-to-noise ratio (SNR) and received signal strength indicator (RSSI). Measurements showed an average RSSI greater than -120 dB and an average SNR greater than -20 dB, indicating LoRa's suitability as a communication network for buoy monitoring systems.
RANCANGAN DAN IMPLEMENTASI SISTEM PERPUSTAKAAN CERDAS BERBASIS SMART CARD DENGAN TEKNOLOGI NEAR FIELD COMMUNICATION (NFC) PADA POLITEKNIK PENERBANGAN MEDAN Erwin Lumban Gaol; Mochammad Zen Samsono Hadi; Aries Pratiarso
Jurnal Nasional Teknologi Komputer Vol 5 No 3 (2025): Juli 2025
Publisher : CV. Hawari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61306/jnastek.v5i3.220

Abstract

In today's digital era, efficient and modern library management has become an essential need for educational institutions. Medan Aviation Polytechnic as one of the institutions under the Ministry of Transportation, requires a library system that can optimize the borrowing and returning processes, as well as enhance services to users. This study aims to design and implement a smart library system based on smart card technology using Near Field Communication (NFC). The developed system utilizes smart cards as library membership cards integrated with NFC technology to facilitate access to the library system. The research methodology includes literature review, system design, implementation, and system testing. The test results show that all smart cards were successfully detected by the system, and only registered cards were allowed access. The maximum reading distance of the NFC reader was 4 cm, with an average access time of 0.42 seconds. The system also accurately classified book borrowing based on study programs. All system features functioned properly and received a high level of user satisfaction, with an average score of 4.59 out of 5, indicating that the system meets user needs, improves service quality, and modernizes library management.
Optimizing LoRa Gateway Placement for Marine Buoy Monitoring Using Particle Swarm Optimization (PSO) Nihayatus Saadah; Faridatun Nadziroh; Nailul Muna; Karimatun Nisa’; Aries Pratiarso; I Gede Puja Astawa; Tri Budi Santoso; Sultan Syahputra Yulianto; Ahmad Baihaqi Adi Putro
Journal of Applied Informatics and Computing Vol. 9 No. 5 (2025): October 2025
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaic.v9i5.11026

Abstract

Effective marine environmental monitoring is critical for ensuring navigational safety, with LoRa technology emerging as a promising solution due to its long-range, low-power capabilities. However, the performance of LoRa networks heavily depends on strategic gateway placement, a task often performed manually, leading to suboptimal coverage. This study addresses this challenge by implementing and validating a Particle Swarm Optimization (PSO) algorithm to determine the optimal placement of gateways for a real-world network of 157 marine buoys in the Madura Strait. The PSO algorithm, configured with 30 particles and 100 iterations, was benchmarked against a baseline manual selection method based on geographic centrality. Results demonstrate a significant performance gain: the PSO-optimized configuration achieved 100% network coverage (157 buoys), a 34.2% increase over the 117 buoys covered by the manual method. These findings confirm that employing PSO for gateway placement substantially enhances network efficiency and data reliability, highlighting its value for creating robust and scalable marine IoT applications.
Co-Authors Ahmad Baihaqi Adi Putro Amang Sudarsono, Amang Anang Budikarso Anang Siswanto Ari Wijayanti Donny Farhan Erwin Lumban Gaol Farel Juliansyah Faridatun Nadziroh Gamantyo Hendrantoro Haniah Mahmudah Hari Wahyuningrat S. I Gede Puja Astawa Karimatun Nisa’ M. Agus Zainuddin Miftahul Huda Mochammad Zen Samsono Hadi Mr. Arifin Nailul Muna Nanang Syahroni NIHAYATUS SAADAH Nur Sa'adah, Nihayatus Sultan Syahputra Yulianto Titiek Suryani Tri Budi Santoso Tri Susanti Tribudi Santoso Yoedy Moegiharto Yoga Yuniadi