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All Journal Jurnal Informatika dan Teknik Elektro Terapan Jurnal Rekayasa Hijau Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Indonesian Journal of Electrical Engineering and Computer Science Populer: Jurnal Penelitian Mahasiswa Jurnal Penelitian Rumpun Ilmu Teknik Jurnal Teknologi Pangan dan Industri Perkebunan Jurnal Teknik Informatika dan Teknologi Informasi Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Yoga Putra Pratama
Grapics And Publishing Engineering Study Program , Politeknik Negeri Jakarta, Depok, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Social Sciences Other

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Efficient packaging defect detection: leveraging pre-trained vision models through transfer learning Wiwi Prastiwinarti; Mera Kartika Delimayanti; Hendra Kurniawan; Yoga Putra Pratama; Hanin Wendho; Rizky Adi
Indonesian Journal of Electrical Engineering and Computer Science Vol 34, No 3: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v34.i3.pp2096-2106

Abstract

The inspection of packaging defects is a crucial aspect of maintaining the quality of industrial production, especially in the case of boxed products. This study introduces a novel approach for detecting physical defects in product packaging boxes by integrating image processing with deep learning, specifically transfer learning with two images as an input. The proposed method utilizes both top view and side view images of the packaging to determine its condition, a significant departure from the conventional single image input. Our approach incorporates 16 pre-trained model variants from EfficientNetV2, MobileNetV3, and ResNetV2 for transfer learning as feature extractors. The experimental findings demonstrate that the best model that leverages EfficientNetV2 variant achieves 100% accuracy and F1 score in terms of classification performance. However, the most optimal model in terms of classification performance and inference speed was the one that leveraged ResNetV2 variant. This model scored 95% accuracy and 95.24% F1 score, with an inference speed of 91 ms per prediction.
ANALISIS DETEKSI TEPI PADA PEMINDAI DOKUMEN MENGGUNAKAN KERTAS THERMAL BERBASIS PYTHON IDE Yoga Putra Pratama; Rachmah Nanda Kartika; Pilar Febry Buwono; Muamar Abid Rabbani
Jurnal Informatika dan Teknik Elektro Terapan Vol 12, No 3 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3.4917

Abstract

Dokumen merupakan salah satu bagian penting dalam berbagai proses, saat ini dokumen lebih banyak dalam bentuk digital dikarenakan kertas dapat mengalami penurunan kualitas seiring berjalannya waktu. Metode yang digunakan adalah metode kualitatif dengan menggunakan Bahasa pemrograman python dan sampel uji coba diberbagai kondisi dan hasil dari ujicoba ini adalah berupa deteksi tepi pada dokumen. Diharapkan hasil dari penelitian ini dapat dikembangkan dengan melakukan perbaikan kontur pada bagian gambar
Embroidery Training as an Effort to Improve Economic Independence of the Elderly in Small and Medium Enterprises Named “OBAT HATI” Emmidia Djonaedi; Yoga Putra Pratama; Rachmah Nanda Kartika; Endang Yuniatri; HB Rudi Kusumantoro; Khalyla Hafsa
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 8 No. 1 (2025): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/abdimas.v8i1.5929

Abstract

Computerized embroidery sewing is an innovation that's relatively easy to learn and produces embroidered objects on fabric quickly and in a marketable way. This machine is ideal for seniors who still want to be productive and increase their income in their later years without having to spend too much time and effort learning to use it. Consequently, a community of seniors around Kranggan, Bekasi, who were interested in computerized embroidery sewing training was chosen. Before the training, participants were given a questionnaire to assess their prior knowledge of computerized embroidery techniques on fabric. It turned out that almost all participants had never used such a machine. As a result, during the training, when they gained new knowledge about using the embroidery machine, they were very enthusiastic about practicing and even suggested having more training sessions in the future to enhance their skills in embroidering prayer cloths and bags
Analisis Usability pada Prototipe Self-Service Kiosk untuk Transformasi Digital Industri Percetakan Elvan Putra Pratama Ramanovanda; Yoga Putra Pratama
Jurnal Teknik Informatika dan Teknologi Informasi Vol. 5 No. 2 (2025): Agustus: Jurnal Teknik Informatika dan Teknologi Informasi
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jutiti.v5i2.5565

Abstract

The printing industry is undergoing a significant digital transformation to overcome traditional operational challenges. Conventional printing services often face problems such as long customer queues, miscommunication regarding technical specifications, and high dependency on staff, leading to operational inefficiencies. To address these issues, a self-service kiosk prototype was designed using the Design Thinking method, aimed at automating and simplifying the ordering process. This study conducts a usability analysis of the kiosk prototype to evaluate its effectiveness, efficiency, and user satisfaction. The method used is Usability Testing, employing performance measurement techniques to assess effectiveness and efficiency, and the Questionnaire for User Interface Satisfaction (QUIS) to evaluate user satisfaction. The results of the Usability Testing indicate that the self-service kiosk prototype achieves a high level of effectiveness and efficiency, meeting the established standards. Furthermore, the analysis of user satisfaction through the QUIS questionnaire shows an optimal outcome, suggesting that the designed interface is well-received by users.
Pengaruh Komposisi Gum Arabic Terhadap Konsistensi Padatan Tinta Organik Batang Kayu Secang Dalam Uji Solid Content Zain Sultan Sultan Mahmuda; Heribertus Rudi Kusumantoro; Yoga Putra Pratama
Jurnal Teknologi Pangan dan Industri Perkebunan (LIPIDA) Vol 5 No 2 (2025)
Publisher : Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/1tw6fp28

Abstract

This study investigates the effect of gum arabic composition on the solid content of organic ink made from sappan wood (Caesalpinia sappan) as a natural dye. The study uses a quantitative method with an experimental approach. The main focus of this research is the solid content test, which is important for determining the quality and durability of organic inks. Variations of gum arabic were used as a binder in the ink formulation, with the tests conducted using screen printing on cotton combed fabric. The results indicate that the lower the composition of gum arabic used, the higher the solid content obtained. The ink with the lowest gum arabic composition (5 grams) produced the highest solid content at 78.79%, compared to 75.00% for 10 grams and 60.00% for 15 grams of gum arabic. Additionally, physical characteristics such as color intensity and viscosity were also influenced by the solid content, with darker colors and thicker textures observed as the solid content increased. These findings contribute to the development of more eco-friendly organic inks with improved stability and performance, supporting the sustainability trend in the printing industry.
Pengaruh Aluminium Sulfat Terhadap Lightfastness Tinta Printer Kluwek Ramah Lingkungan Faisal Akbar Fallah; Yoga Putra Pratama; Emmidia Djonaedi
Rekayasa Hijau : Jurnal Teknologi Ramah Lingkungan Vol 9, No 3 (2025)
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/jrh.v9i3.45-54

Abstract

Kesadaran masyarakat dan kebijakan pemerintah yang semakin menekankan pentingnya pelestarian lingkungan telah mendorong peningkatan permintaan terhadap produk yang lebih ekologis. Dalam konteks industri percetakan, salah satu solusi untuk mengurangi dampak limbah tinta adalah dengan menciptakan tinta berbahan dasar alami yang lebih ramah lingkungan. Penelitian ini mengeksplorasi penggunaan pigmen alami dari buah kluwek (Pangium edule) sebagai komponen utama dalam pembuatan tinta inkjet yang berkelanjutan. Fokus kajian tertuju pada pengaruh penambahan aluminium sulfat sebagai fiksator daya tahan warna tinta terhadap pemudaran akibat cahaya. Dengan menggunakan desain eksperimen satu faktor, dilakukan variasi massa aluminium sulfat antara 0,4%, 0,8%, 1,2% gram. Pengujian dilakukan dengan mengamati perubahan nilai warna berdasarkan CIE L*a*b* untuk mengevaluasi ketahanan terhadap cahaya. Hasil menunjukkan bahwa meskipun peningkatan massa aluminium sulfat menurunkan intensitas warna awal tinta, senyawa ini mampu meningkatkan stabilitas warna terhadap paparan cahaya. Temuan ini mengindikasikan bahwa formulasi tinta berbasis kluwek dengan tambahan aluminium sulfat memiliki potensi sebagai alternatif tinta inkjet ramah lingkungan.Kata kunci: tinta, kluwek, aluminium sulfat, CIE L*a*b*
Rancang Bangun Pencetak Kertas Stiker Nirkabel Berbasis ESP32 untuk Pencetakan Kode QR Yoga Putra Pratama; Rachmah Nanda kartika; Achmad Dzaki; Agam Maulana Putra; Khalda Khairunnisa Mulyana; Fatimah Nurina Adlina; Misykah Nur Fithriyah; Emmidia Djonaedi
Jurnal Penelitian Rumpun Ilmu Teknik Vol. 5 No. 3 (2026): Jurnal Penelitian Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juprit.v5i3.6849

Abstract

The rapid adoption of digital transactions and contactless services has driven the demand for compact, flexible printing systems, particularly for Quick Response (QR) codes. This study designs and evaluates an ESP32-based wireless sticker paper printer tailored for real-time QR code generation and printing. Using a Research and Development (R&D) approach based on the Borg and Gall model, the prototype integrates an ESP32 microcontroller, a 58 mm Bluetooth thermal printer, an I2C 16x2 LCD display, and push-button inputs. System performance was analyzed based on software-hardware integration and Bluetooth Response Time (BRT) across varying distances. The results demonstrate that the system operates reliably within a 2 to 8-meter range, maintaining a stable response time of 95–96 ms. At 10 meters, response time increases significantly to 2,908 ms due to packet loss, while distances exceeding 10 meters lead to disconnection ("BT Failed"). This standalone system offers a responsive, cost-effective wireless printing solution for QR code labeling in micro, small, and medium enterprises.
Perancangan Alat Uji Luntur Warna Terhadap Gesekan Dan Analisis Pengujian Menggunakan Parameter Δe Wildan Zamzami; Yoga Putra Pratama; Sahiba Sahila
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 6 No. 2 (2026): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v6i2.12191

Abstract

This study aims to design and build a simple crockmeter to test the colour-fastness to rubbing of digitally printed paper using an Arduino Uno R3-based automatic friction mechanism. The background of this research is the limited availability of an affordable and easy-to-operate crocking tester in educational laboratories, while commercial units are costly and complex. The device was developed using the Research and Development (R&D) method through three stages: 3D design using Autodesk 3D Max, prototyping with PVC board, and final construction using UNP steel frame, a DC motor JGA25-370, an L298N motor driver, and a 900-gram dry load referring to the AATCC Test Method 8 standard. Testing was conducted on five samples of 250 gsm ivory paper with black digital print, each subjected to ten dry rubbing cycles using AATCC crocking square test fabric. The colour change before and after rubbing was measured with a spectrodensitometer using the CIE L*a*b* parameters to calculate the total colour difference (ΔE). The results show that the developed crockmeter is able to perform the rubbing test consistently across the five samples, with a relatively uniform ΔE value, indicating that the tool can represent the dry-rubbing colour-fastness test reasonably well. This finding implies that the device is feasible to be used as a low-cost practicum medium that supports material-testing education in graphic engineering laboratories
Upaya Pengendalian Kualitas Guna Menurunkan Angka Cacat Reclaiming pada Industri BOPP PT XYZ Tbk Menggunakan Metode Root Cause Analysis (RCA) Muhammad Iksan Ramadan; Yoga Putra Pratama; Sahiba Sahila
Populer: Jurnal Penelitian Mahasiswa Vol. 5 No. 2 (2026): Juni: Populer: Jurnal Penelitian Mahasiswa
Publisher : Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/populer.v5i2.5074

Abstract

PT XYZ Tbk is a Biaxially Oriented Polypropylene (BOPP) film manufacturing company that continues to face a high level of reclaiming activities due to product defects. This condition leads to increased raw material waste, higher production costs, and reduced production efficiency. This study aims to identify the root causes of reclaiming defects and develop improvement recommendations to reduce the defect rate using the Root Cause Analysis (RCA) method with the fishbone diagram and 5 Whys approach. This research employed a qualitative method using reclaiming data collected from July to September 2025 through observations, interviews, and company documentation. The results showed that the total reclaiming waste reached 1,079,223.88 kg, with the largest defect category consisting of Cut Sheet, Edge Trim, and Reject Roll, accounting for 49.97%, followed by Jumbo Balance at 32.16%. The RCA results indicated that the root causes of the defects were influenced by man, machine, method, material, and environment factors, which are interconnected throughout the production process. Based on these findings, the proposed improvements include enhancing operator competence through training, implementing regular preventive maintenance, strengthening compliance with Standard Operating Procedures (SOP), improving material quality control, and optimizing workplace conditions. The implementation of these improvement strategies is expected to reduce reclaiming defects, improve product quality, and create a more effective and efficient BOPP production process at PT XYZ Tbk.
Co-Authors Achmad Dzaki Agam Maulana Putra Elvan Putra Pratama Ramanovanda Emmidia Djonaedi Endang Yuniatri Faisal Akbar Fallah Fatimah Nurina Adlina Hanin Wendho HB Rudi Kusumantoro Hendra Kurniawan Heribertus Rudi Kusumantoro Khalda Khairunnisa Mulyana Khalyla Hafsa Mera Kartika Delimayanti Misykah Nur Fithriyah Muamar Abid Rabbani Muhammad Iksan Ramadan Pilar Febry Buwono Rachmah Nanda Kartika Rachmah Nanda Kartika Rizky Adi Sahiba Sahila Wildan Zamzami Wiwi Prastiwinarti Zain Sultan Sultan Mahmuda