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All Journal JURNAL INTEGRASI Journal of Applied Electrical Engineering Humantech : Jurnal Ilmiah Multidisiplin Indonesia Jurnal Teknik Indonesia Journal Of Computer Science And Technology Jurnal Rekayasa elektrika International Journal of Computer Technology and Science Bulletin of Engineering Science, Technology and Industry
Prasaja Wikanta
Politeknik Negeri Batam
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Simulasi Pengaruh Penambahan CP pada Modulasi OFDM di Spesifikasi 802.11a/g yang Melewati Kanal Multipath Prasaja Wikanta
JURNAL INTEGRASI Vol 7 No 1 (2015): Jurnal Integrasi - April 2015
Publisher : Politeknik Negeri Batam

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Abstract

Wifi digunakan dimana-mana, baik di dalam gedung maupun di luar ruangan. Ketika di dalam gedung, sinyal wifi akan mengalami beberapa pantulan maupun penyerapan yang disebabkan oleh dinding maupun interior. Standar Wifi menambahkan Cyclic Prefix (CP) untuk mengatasi Multipath. Penelitian ini berusaha untuk melihat pengaruh multipath pada standar wifi 802.11a/g, yang menggunakan OFDM. Model multipath yang dipakai adalah kanal a, b, dan c dari Proakis. Hasil yang diperoleh adalah penambahan CP pada sinyal OFDM dapat mengatasi multipath pada kanal a dan b. Namun pada kanal c, gagal. Ada beberapa simbol yang keluar dari konstelasinya.
Integrasi Jaringan Telepon Analog dengan Jaringan Komputer di Politeknik Negeri Batam Prasaja Wikanta
JURNAL INTEGRASI Vol 5 No 1 (2013): Jurnal Integrasi - April 2013
Publisher : Politeknik Negeri Batam

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Abstract

Saat ini TCP/IP secara de facto sudah menjadi standar jaringan telekomunikasi di dunia. Politeknik Batam juga menggunakan TCP/IP untuk jaringan data. Untuk kebutuhan suara (voice), Politeknik Batam menggunakan jaringan telekomunikasi yang berbeda. Memelihara dua jaringan yang berbeda, mau tidak mau pasti menambah biaya pemeliharaan. Sehingga kita harus mulai menggabungkan dua jaringan ini (voice dan data). Komunikasi voice, data dan video menjadi satu. Apalagi, dalam beberapa tahun mendatang Politeknik Batam akan melakukan pembangunan gedung baru, yang berarti instalasi jaringan baru. Oleh karena itu, network convergence sangat diperlukan. Penelitian ini berhasil menggabungkan dua jaringan tersebut dengan memanfaatkan voice card yang dipasang di server Asterisk. Jaringan komputer Politeknik Negeri Batam dan jaringan PABX dapat saling berkomunikasi. Kualitas percakapan yang diperoleh masih dapat dipahami dengan delay rata-rata di bawah 30 ms, jitter rata-rata di bawah 10 ms dan packet loss rata-rata di bawah 1%.
Pencegahan Dini Kerusakan Mesin dengan Sistem Deteksi Suhu Radiator Mobil Mahdinsyah Mahdinsyah; Prasaja Wikanta
Journal of Applied Electrical Engineering Vol 6 No 1 (2022): JAEE, June 2022
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaee.v6i1.4038

Abstract

Saat ini banyak kalangan yang memiliki kendaraan impian yang harganya terjangkau dengan kemampuan keuangan mereka. Namun banyak masyarakat yang tidak mengetahui cara mengantisipasi dan mencegah secara dini kerusakan dari mobil yang diakibatkan tidak berfungsinya sistem radiator pendingin mesin. Dibuat sistem yang memonitor suhu air radiator normal yang sesuai dengan suhu kerja yang disyaratkan pabrikan dan mengatasi suhu air overtemp yang mendadak yang tidak dapat diatasi sistem pendingin mobil. Sistem ini akan mengaktifkan control supaya mesin mati otomatis. Untuk mengindari kerusakan yang fatal sehingga usia dari komponen mesin mobil dapat bertahan lebih lama. Sistem ini inputnya sensor Negative Thermal Coeficient yang kontak langsung dengan air radiator. Metode yang digunakan yaitu fuzzy untuk monitoring, menggunakan device microcontroller arduino untuk komputasi. Outputnya melalui modul relay elektro mekanik menonaktifkan fuel injection dari mobil, sehingga mesin mobil mati otomatis. Saat suhu cut-off mencapai 100 ⁰C, mesin mobil mati secara otomatis.
Web-Based Item Tracking System Using RFID Azinurrachman Maulana; Siti Aisyah; Prasaja Wikanta
Jurnal Rekayasa Elektrika Vol 19, No 3 (2023)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v19i3.27050

Abstract

Numerous tools, kits, and other items are utilized daily by many individuals in the college laboratories. Without a proper inventory record, there is a risk of missing and misplacing some items. The system for tracking items using Radio Frequency Identification (RFID) accessed via the website has been designed to track the location of each item in the laboratory using RFID technology. The primary objective of this system is to monitor and record inventory. Information regarding the inventory is stored in a database, which can be accessed to track inventory and review the history of specific items via the Internet. The designed system is capable of tracking and managing laboratory equipment inventory using RFID, accessible through a web-based platform.
Sistem Kendali dan Pemantauan Daya Listrik dengan MQTT Berbasis IoT Pasaribu, Erikson Sabastian; Aisyah, Siti; Wikanta, Prasaja; Darmoyono, Aditya Gautama; Lubis, Eka Mutia
Jurnal Teknik Indonesia Vol. 3 No. 3 (2024): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v3i7.445

Abstract

Perkembangan zaman yang semakin canggih terhadap perangkat elektronik membuat perangkat elektronik banyak digunakan baik di industri maupun di rumah - rumah. Sering sekali masyarakat menggunakannya secara terus menerus dan tidak mengetahui berapa daya listrik yang telah digunakan sehingga menjadi pemborosan jika tidak diperhatikan. Salah satu cara agar dapat mengendalikan serta memantau penggunaan daya listrik yaitu menggunakan internet yang dikenal juga dengan istilah Internet of Things (IoT). Pada penelitian ini dibangun Sistem kendali dan pemantauan daya listrik dengan menggunakan protokol MQTT yang sistem ini bertujuan agar dapat mengendalikan dan memantau penggunaan daya listrik dari suatu perangkat listrik. Dengan menggunakan protokol MQTT, maka digunakannya publish-subscribe yaitu data dari sensor PZEM-004T sebagai publisher yang akan dikirim ke broker dengan menginisialisasikan sebuah topik yang diteruskan ke database dengan syarat topik harus juga sama dengan topik sebelumnya sehingga selanjutnya akan ditampilkan di sebuah web dan ketika daya listrik berlebihan maka akan ada notifikasi ke telegram pengguna untuk menonaktifkan beban tersebut. Dalam hal ini hasil yang didapatkan berupa arus, tegangan, dan daya dari sensor PZEM-004T memiliki rata-rata persentase error yang kecil sekitar 0 – 0,13% yang menunjukkan keakuratan pengukuran. Begitu juga dengan delay yang diperoleh antara alat terhadap Wi-Fi pada jarak tertentu cukup cepat sekitar 1 detik serta hasil pengendalian daya pada beban yang didapatkan ketika limit berlebih, status beban nonaktif yang diinfokan ke telegram user.
Optimization of IC 32-pin QFP Pick Up Parameters Wikanta, Prasaja; Sitompul, Adravia Lisbeth Claudia; Wivanius, Nadhrah; Arifin, Muhammad; Nakul, Fitriyanti
Humantech : Jurnal Ilmiah Multidisiplin Indonesia Vol. 4 No. 4 (2025): Humantech : Jurnal Ilmiah Multidisiplin Indonesia
Publisher : Program Studi Akuntansi IKOPIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32670/ht.v4i4.5466

Abstract

This study aims to optimize the picking parameters of 32-pin Quad Flat Package (QFP) IC components on the SM421 pick-and-place machine operating at the Teaching Factory for Electronics Manufac-turing (TFME) of Batam State Polytechnic. Currently, the machine has not been optimized, so users must manually adjust the compo-nent dimensions and parameter settings before operation. This re-sults in significant setup time and reduces process efficiency. The method used in this study is Design of Experiments (DOE) to sys-tematically evaluate various parameter settings. The experimental results show that certain configurations can reduce setup time and improve component placement accuracy. These findings contribute significantly to improving machine performance and operational ef-ficiency in the Surface Mount Technology (SMT) assembly process. In conclusion, optimizing the 32-pin IC picking parameters on the SM421 machine can improve the productivity and effectiveness of the assembly process.
Design and Development of a Product Data Traceability System Capable of Printing Web-Based Information Labels Jamal Haiqal Bahanan; Prasaja Wikanta; Fitriyanti Nakul
International Journal of Computer Technology and Science Vol. 2 No. 3 (2025): International Journal of Computer Technology and Science
Publisher : Asosiasi Riset Teknik Elektro dan Infomatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijcts.v2i3.294

Abstract

The Printed Circuit Board (PCB) industry increasingly relies on automation and digitalization to improve efficiency and accuracy in production and distribution processes. One common practice is the use of labels containing product information in the form of barcodes or QR codes, which allow automatic data input and reduce the risk of human error compared to manual writing. However, in current practices, these labels are only attached to PCBs after they have been placed inside casings. This creates a significant limitation, as access to the label information requires disassembling the casing whenever product verification, tracking, or troubleshooting is needed. Such a process not only consumes additional time and resources but also increases the risk of damaging the product. To overcome this challenge, this study proposes the development of a traceability system designed to accurately monitor the location, identity, and status of PCBs throughout the distribution process. The system was implemented as a web-based application capable of generating and printing product information labels in the form of barcodes and QR codes. Each label functions as a unique identifier, ensuring that every PCB can be distinctly tracked from production to final product assembly. All data associated with the labels is automatically stored in a centralized database, providing real-time accessibility, simplifying information management, and enabling faster decision-making in the event of quality control issues. System evaluation was carried out through rigorous testing, which showed a 100% success rate in generating, storing, and retrieving product information without errors. The findings indicate that the proposed traceability system is both effective and efficient, and it offers a practical solution for industries seeking to enhance supply chain visibility, improve product accountability, and reduce operational inefficiencies in PCB distribution and lifecycle management.
Pengujian Komunikasi Perangkat Lora untuk Pengiriman Data Detak Jantung Menggunakan Topologi Point to Point Berbasis LoraWAN Fahruzi, Iman; Timanta, Febrian Harlim; Panjaitan, Junaedi Satrio; Ferdinan, Wisnu; Marpaung, John Purba; Silalahi, Laurent; Ricardo, Riki; Oktani, Dessy; Wikanta, Prasaja
JURNAL INTEGRASI Vol. 15 No. 2 (2023): Jurnal Integrasi - Oktober 2023
Publisher : Pusat Penelitian dan Pengabdian Masyarakat Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/ji.v15i2.6296

Abstract

Penelitian ini merupakan implementasi protokol LoraWan untuk mengirimkan data sensor berupa rekaman detak jantung secara point to point. Memanfaatkan keunggulan jaringan LoraWAN, data yang dikirim memiliki jangkauan yang jauh dan berdaya rendah sehingga bisa digunakan untuk sistem telemedis pada daerah yang secara geografis sulit dijangkau untuk akses fasilitas kesehatan. Data rekaman detak jantung yang didapat dari setiap sensor yang terkoneksi dan terintegrasi dengan sistem telemedis akan melakukan pengiriman secara periodik. Selanjutnya data yang diterima diteruskan kepada server melalui LoraWAN Gateway. Sistem telemedis ini terdiri dari sensor EKG, arduino dengan jaringan lora, satu LoraWAN Gateway dan server yang terintegrasi dengan pusat data berbasis web dan aplikasi android. Hasil Pengujian menunjukkan konektivitas antara tiga titik sensor dari beberapa lokasi mampu mengirimkan data sensor dengan baik dengan jarak terbatas kurang dari satu kilometer.
DESIGN AND MODIFICATION OF A MULTI-STATION JIG FOR IMPROVING PRODUCTION CAPACITY IN A PAD PRINTING MACHINE Egy Gunawan Manurung; Prasaja Wikanta
Bulletin of Engineering Science, Technology and Industry Vol. 4 No. 2 (2026): June
Publisher : PT. Radja Intercontinental Publishing

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Abstract

Pad printing is an essential manufacturing process widely deployed across the electronics industry to transfer logos, serial numbers, and identification marks onto product surfaces with high precision. The performance of this process heavily relies on the architectural design of its work-holding jig system, which ensures accurate part alignment and structural stability during high-pressure ink transfer. At PT RPS Precision Engineering, the pad printing machine uses a multi-station jig system. However, the existing jig suffers from constrained dimensions, leading to restricted workpiece placement, slow manual loading/unloading operations, and degraded throughput. This study re-architects and modifies the dimensions of the multi-station jig to maximize production capacity while maintaining total compatibility with the existing printing infrastructure. The applied engineering design framework integrates field observation, CAD-based design optimization, electro-pneumatic integration via Programmable Logic Controller (PLC) synchronization, and a comparative performance evaluation. The re-engineered multi-station jig expands the available workpiece loading area, optimizes operator handling motions, and significantly elevates part positioning accuracy. Empirically, the system achieved a cycle time reduction from 28.45 seconds to 18.00 seconds per unit in initial trials, boosting production output to 1,600 pieces per shift. Machine idle time is minimized, enabling a highly efficient, automated throughput workflow without requiring fundamental modifications to the core pad printing machine. These findings demonstrate that dimensionally optimizing multi-station work-holding systems is an exceptionally practical and cost-effective approach to improving industrial manufacturing productivity.
Development Of A Non-Intrusive RFID Elevator Access Control System For Residential Buildings Parade Parsaulian Purba; Vivin Octowinandi; Prasaja Wikanta; Muhammad Arifin
Journal of Computer Science and Technology (JOCSTEC) Vol 4 No 3 (2026): JOCSTEC - September
Publisher : PT. Padang Tekno Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/jocstec.v4i3.793

Abstract

This study developed and evaluated a standalone, non-intrusive radio frequency identification (RFID)-based elevator access control system for a four-story residential building. The system used an Arduino Uno, an MFRC522 RFID reader, and relay interfaces to regulate access to Floors 2, 3, and 4. Authorized card identifiers and floor permissions were stored locally, enabling offline operation without an external database or network connection. The relays interfaced only with the elevator push-button circuits and did not modify the original controller, motor drive, door mechanism, or safety system. Performance was evaluated using 47 registered cards and three unregistered cards, with each card tested 50 times, producing 2,500 authentication trials. Under the tested conditions, all registered cards were correctly authenticated according to their assigned floor permissions, while all unregistered cards were rejected. The system achieved 100% authentication accuracy, 100% correct relay activation, and 100% unauthorized-card rejection. Stable card detection was obtained at distances of up to approximately 1 cm. The first-floor button remained independent of the RFID module to preserve minimum accessibility during module failure. The proposed system provides a practical and low-cost retrofit solution for floor-specific elevator access control in small residential buildings.
Co-Authors Azinurrachman Maulana Darmoyono, Aditya Gautama Egy Gunawan Manurung Eka Mutia Lubis Ferdinan, Wisnu Fitriyanti Nakul Iman Fahruzi Jamal Haiqal Bahanan Mahdinsyah Mahdinsyah Marpaung, John Purba Muhammad Arifin Muhammad Arifin Nadhrah Wivanius, Nadhrah Oktani, Dessy Panjaitan, Junaedi Satrio Parade Parsaulian Purba Pasaribu, Erikson Sabastian Ricardo, Riki Silalahi, Laurent Siti Aisyah Siti Aisyah Sitompul, Adravia Lisbeth Claudia Timanta, Febrian Harlim Vivin Octowinandi