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Journal : International Journal of Engineering, Science and Information Technology

Design and Development of a Coffee Bean Selector Using The Yolo Algorithm Raihan Putri; Rizkan Tiara
International Journal of Engineering, Science and Information Technology Vol 2, No 4 (2022)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v2i4.331

Abstract

The enjoyment of brewed coffee is determined by many things, one of which is choosing quality coffee beans and coffee powder. Quality coffee beans are determined by shape and size (full, half full, or damaged). Checking the size and shape of coffee beans manually is subject to external influences such as fatigue, environment, light, etc. With the help of technologyimage processing, these factors can be overcome. Through this paper a tool is designed to detect coffee defects using the Yolo algorithm. The designed system consists of a camera that captures images of coffee beans which are then processed by the Raspberry Pi and the results are displayed on the laptop screen. Detection results using the YOLO algorithm for 10 trials using 100 coffee beans get an average percentage value of 76.54% for the perfect coffee bean category of 43 coffee beans, then the average percentage of imperfect coffee beans is 73.40% with lots of 48 3 coffee beans and coffee beans were not detected with an average percentage value of 1% and coffee beans included in the two categories were 6 coffee beans with an average percentage value of 19.8%. In this study the YOLO algorithm can maintain an accuracy rate of detection success of 75%.
Evaluation of Technical Shrinkage of Express Extension PL 03 and LW 09 at PLN Lhoksukon Using ETAP Software Raihan Putri; Dheo Pratama; Arnawan Hasibuan; Muchlis Abdul Muthalib; Nanda Sitti Nurfebruary
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.458

Abstract

The electricity distribution system generally starts from the generation, transmission, and distribution systems. In the distribution system, there are two channels, namely primary distribution with a voltage value of 20 kV and secondary distribution with a voltage of 220/380 V. Distributing electrical energy often experiences problems, one of which is the occurrence of energy losses during the distribution of electrical power to customers. Energy losses are energy losses due to technical and non-technical factors. This study evaluates energy losses due to technical factors in the express extension PL 03 and LW 09 PT PLN (Persero) ULP Lhoksukon. The method used to assess energy losses due to technThe calculation results show that theological factors with ETAP software simulations and more detailed technical shrinkage calculations, namely by calculating conductor and transformer shrinkage on the repeater. From the results of the ETAP simulation, it is obtained that the voltage losses of the PL 03 and LW 09 Lhoksukon ULPs still meet the standards according to SPLN 1: 1995 for a voltage of 20 kV where the limits set are +5% maximum and -10% minimum of the system voltage. The drop Voltage of PL 03 Extension is 7.6%, and LW 09 Extension is 8.25% of the nominal voltage of 20 kV. From the calculation results, of Drop Voltage of the PL 03 Repeater is 5.5%, and the LW 09 Repeater is 8.5% of the nominal voltage of 20 kV.
Co-Authors Abdul Muthalib, Muchlis Abdullah, Ahmad Zaidi bin Adi Syahputra Ritonga Akbar, Farhan Akmal, Syarifah Al-Ani, Waleed Khalid Ahmed Almuyasir, Almuyasir Andhika Jaya Putra Andik Bintoro Arnawan Hasibuan Askarov, Rafael Asran Asran Asran, A Asran, Asran Asri asri Asri Asri Badriana, Badriana Daulay, Muhammad Arif Savinsada Dedi Fariadi Dheo Pratama Diras Elvi Idriana Elya Fitriyani Erawati, Henyy Ezwarsyah Ezwarsyah Fachroji, Rizqan Fahmi Makraja Faisal Faisal Faisal Faisal Faisal Manurung Fakhruddin Ahmad Nasution Farabi, Sayed Muhammad Fatahillah, Fatahillah fatimah Fatimah Fitria Mardhatillah Fuadi, Wahyu Gery Ulayya Hardi Gunawan, Khairul Habib Muharry Yusdartono Hardi, Gery U. Hardi, Gery Ulayya Hasibuan, Arlina I Made Ari Nrartha Ikhsan, Khairul Isa, Muzamir Isra, Raihan Juliadi, Endri Kartika Kartika Kartika, K Khairun Nisa Khairun Nisa M Sayuti Maizuar, M Maryana Maryana Meriatna Meriatna Misbahul Jannah Misbahul Jannah Muammar Muammar Muammar Muammar, Muammar Muchlis Abdul Muthalib Muhammad Afdal Muhammad Daud Muhammad Daud muhammad ilham manishe Muhammad Luthfi Muhammad Muhammad Muhammad Reza Muhammad, M Mukhlis Mukhlis Mukhlis Mukhlis Muksalmina Muksalmina Nanda Sitti Nurfebruary Nasution, Fakhruddin A Nisa Afifah Nratha, I Made Ari Nurdin Nurdin P Purwanto Putra, Gusti Randa Affinda Rahman, Irfan Fatur Ramji, D. R. Rian Rahmad Riswanda Rizkan Tiara Roasdiana, Rosdiana Robi Kurniawan Rosdiana Rosdiana Rosdiana Rosdiana Sadli, M. Saifannur Saifannur Saifuddin Muhammad Jalil Saifuddin Saifuddin Salahuddin Salahuddin Salahuddin, S Selamat Meliala Selly Nofrianti Siti Sonya Nadzilla Sulaiman Sulaiman Tajul Iflah Tasyukur Taufiq Taufiq Taufiq Taufiq Teuku Multazam Tunnur, Layla Tunnur Widyana Verawaty Siregar Yasir Amani Yulhana, Irma Zulfadli Zulfadli Zulnazri, Z Zuraida Zuraida