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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Journal of Engineering and Technological Sciences Prosiding Semnastek JURNAL NASIONAL TEKNIK ELEKTRO Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Hilirisasi IPTEKS (JHI) Indonesian Journal of Electrical Engineering and Computer Science International Journal of Basic and Applied Science Prosiding Konferensi Nasional PKM-CSR Andalas Journal of Electrical and Electronic Engineering Technology Jurnal Andalas: Rekayasa dan Penerapan Teknologi Jurnal Rekayasa elektrika
. Darwison
Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Nursing Physics Public Health Social Sciences Veterinary Other

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A leakage current estimation based on thermal image of polymer insulator Darwison Darwison; Syukri Arief; Hairul Abral; Ariadi Hazmi; M. H. Ahmad; Eka Putra Waldi; Rudy Fernandez
Indonesian Journal of Electrical Engineering and Computer Science Vol 16, No 3: December 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v16.i3.pp1096-1106

Abstract

Polymer insulators tend to fail because of the climatic and environmental conditions. The failure occurs when the surface of insulator is contaminated by sea salt or cement dust which lead to partial discharge (PD). Leakage currents will increase by PD that causes deterioration of insulation. To predict the insulation failures, an  adaptive neurofuzzy inference system (ANFIS) method using initial color detection processes are proposed to estimate the leakage currents based on the polymer insulator thermal images (infrared signature). In this study, the sodium chloride and kaolin are used as pollutants of the polymer insulator according to IEC 60507 standards. Then, the insulator is tested in the laboratory using AC high voltage applied at 18 kV where the temperature detection is controlled at 26° C and 70% RH (relative humidity). The percentage of colors (Red, Yellow, and Blue) from the thermal image is measured using the color detection method. Correspond to the color percentage, the ANFIS method predicts leakage currents from polymer insulators. Furthermore, this system interprets measured data from insulators that need to be categorized as Safe, Need Maintenance or Harmful. The final application of the system can be a non-contact tool to predict the polymer insulators used by technicians in the field.
Aplikasi Geographic Information System (Gis) Nagari Koto Gadang : Tempat Kelahiran Tokoh Nasional Sebagai Pendukung Pariwisata Bukittinggi Surya Afnarius; Darwison Darwison; Masril Syukur; Eri Gas Ekaputra
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 1 (2018): Prosiding PKM-CSR Konferensi Nasional Pengabdian kepada Masyarakat dan Corporate Socia
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.422 KB)

Abstract

Nagari/Desa Koto Gadang merupakan salah satu nagari yang berada di Kecamatan IV Koto Kabupaten Agam Sumatera Barat. Dulu Nagari ini begitu terkenal dan ramai dikunjungi wisatawan. Wisatawan-wisatawan yang berkunjung ke Kota Bukittinggi akan selalu mampir ke Nagari ini yang punya daya tarik wisata sejarah, yaitu tempat kelahiran beberapa tokoh nasional yang berpengaruh di Indonesia. Namun saat ini, Nagari ini sudah jarang dikunjungi wisatawan, sehingga Nagari ini menjadi sepi. Untuk itu, satu usaha untuk menarik wisatawan telah dilakukan, yaitu menyebarkan informasi potensi Nagari Koto Gadang ini sebagai tempat wisata sejarah melalui internet dalam bentuk pembangunan dan penerapan aplikasi Geographic Information System (GIS). Paper ini melaporkan pembangunan dan penerapan aplikasi GIS itu sebagai satu luaran penelitian dan pengabdian masyarakat di Nagari Koto Gadang. Tujuan penelitian dan pengabdian masyarakat ini adalah untuk membangun dan menerapkan Aplikasi GIS Nagari Koto Gadang : Tempat Kelahiran Tokoh Nasional. Aplikasi GIS ini dibangun dengan menggunakan metode waterfall yang terdiri dari tahapan analisis, perancangan, pengkodean dan pengujian. Bahasa pemrograman PHP dan Javascript digunakan untuk membangun aplikasi web GIS. PostgreSQL dengan ekstensi PostGIS digunakan sebagai basis data. Aplikasi GIS yang dihasilkan dalam penelitian dan pengabdian masyarakat ini diuji dengan menggunakan metode pengujian kotak hitam dan data pariwisata Nagari Koto Gadang. Hasil pengujian menunjukkan bahwa aplikasi GIS yang dibangun dan diterapkan itu telah sesuai dengan apa yang diharapkan.
Penghilangan Mikroorganisme dalam Air Minum dengan Dielectric Barrier Discharge Ariadi Hazmi; Reni Desmiarti; Eka Putra Waldi; Arief Hadiwibowo; . Darwison
Jurnal Rekayasa Elektrika Vol 10, No 1 (2012)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.425 KB) | DOI: 10.17529/jre.v10i1.143

Abstract

Microorganisms such as Escherichia coli in water are a component that is difficult to remove in conventional water treatment systems. Several systems have been implemented to reduce levels of microorganisms is the use of disinfectants, the membrane filtration and activated carbon absorption. These systems have several weaknesses, so that not all microorganisms can be removed from drinking water. The plasma system is an applicable technology for removing organic compounds and microorganisms in drinking water. By creating plasma in water will produce several of active species such as OH-, H+, O3 and H2O2 that has a high oxidation potential, decompose organic compounds and kill microorganisms in the water significantly. This paper will describe the removal of microorganisms in drinking water using a plasma system by the method of dielectric barrier discharge (DBD ). The results howed that the pH of drinking water produced in the range 6.5 to 7.3. The higher voltage causes the higher the conductivity, temperature and ORP water. Removal efficiency for the content of microorganisms Coli Fecal and Coliform in the range 99.2 to 100% after water was injected voltage of 13-17 kV for 10 minutes.
PENERAPAN TEKNOLOGI PADA USAHA BUDIDAYA JAMUR TIRAM UNTUK MENDUKUNG URBAN FARMING DI KWT JAWA GADUT SAIYO LIMAU MANIS PAUH KOTA PADANG Darwison Darwison; Zaini Zaini; Fahranul Aderi; Farhan Fadil Irsan
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 7 No 1 (2023)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/logista.7.1.162-156.2023

Abstract

Adapun masalah pada kelompok Budidaya Jamur Tiram di KWT Jawa Gadut Saiyo Limau Manis Pauh Kota Padang yaitu harus menjaga suhu dan kelembaban, secara langsung dan terus menerus agar jamur tiram di kumbung berkembang dengan baik. Selain itu juga permasalahan dalam pengisian baglog yang butuh waktu dan tenaga ekstra serta mesin kukus yang masih sederhana. Untuk menyelesaikan masalah tersebut maka diperlukan penerapan teknologi pada usaha budidaya jamur tiram untuk mendukung urban farming dalam hal sistem otomatisasi meliputi aspek suhu dan kelembaban; alat press baglog; wadah kukus baglog; serta sistem monitoring kumbung secara jarak jauh. Hasil yang didapatkan yaitu kelembaban secara otomatis dalam rentang kisaran 80% s/d 92% dan suhu rentang 25oC s/d 29oC. Pembuatan baglog lebih ringan dan hasilnya lebih padat serta hanya membutuhkan waktu 1 menit / baglog. Dan wadah kukus baglog lebih praktis berbentuk lemari yang berkapasitas maksimal 144 baglog. Kata kunci: suhu, kelembaban, baglog, kumbung, monitoring ABSTRACT As for the problem in the Cultivation group Oyster Mushrooms in KWT Jawa Gadut Saiyo Limau Manis Pauh, Padang City, that is, they must maintain temperature and humidity, directly and continuously so that the oyster mushrooms in the kumbung develop properly. Apart from that, there are also problems in filling baglog which requires extra time and effort and the steaming machine is still simple. To solve this problem, it is necessary to apply technology to oyster mushroom cultivation to support urban farming in terms of automation systems covering aspects of temperature and humidity; baglog presses; baglog steam container; as well as remote kumbung monitoring system. The results obtained are humidity automatically in the range of 80% to 92% and temperatures in the range of 25oC to 29 oC. Making baglog is lighter and the results are denser and only takes 1 minute/baglog. And the baglog steamer is more practical in the form of a cupboard with a maximum capacity of 144 baglog. Keywords: temperature, humidity, baglog, kumbung, monitoring
External Leakage Current Separation to Determine Arrester Condition Due to Contamination Novizon Novizon; Mondrizal Mondrizal; Darwison Darwison; Aulia Aulia; Tesya Uldira Septiyeni
JURNAL NASIONAL TEKNIK ELEKTRO Vol 12, No 2: July 2023
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v12n2.1026.2023

Abstract

Leakage current measurements can be used to determine the aging condition of the ZnO arrester. The leakage current that occurs in the arrester is divided into two, namely external and internal leakage currents. The external leakage current is affected by contamination and the internal leakage current is affected by the aging of the varistor in the arrester. The external and internal leakage currents are measured separately to determine their contribution to the arrester condition. In this study, the effect of salt contamination on the arrester was studied further. The level of contamination used consisted of low, medium and heavy. The obtained leakage current is analyzed using wavelet energy. The results of this study indicate that the wavelet energy of each leakage current is different and can be used as an indicator in further analysis. The conclusion obtained is that the external leakage current is affected by contamination and has a different energy with the internal leakage current due to aging of the varistor arrester components.
Penerapan Sel Surya sebagai Energi Listrik Alternatif di Alfi Hidroponik Padang Zaini Zaini; Heru Dibyo Laksono; Rahmadi Kurnia; Darwison Darwison; Darmawan Darmawan; Mumuh Muharram; Syarkawi Syamsuddin; Riko Nofendra; Muhammad Ilhamdi Rusydi
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 1 No. 2 (2021): Desember 2021
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (562.152 KB) | DOI: 10.25077/jarpet.v1i2.15

Abstract

Energi listrik adalah salah satu kebutuhan utama bagi usaha pertanian hidroponik. Mereka butuh untuk mengalirkan nutrisi tanaman melalui air secara terus-menerus menggunakan pompa. Jika sumber energi listrik terputus, maka akan menyebabkan tanaman tidak tumbuh sempurna. Oleh karena itu, pada kegiatan ini dilakukan penerapan sel surya sebagai energi listrik alternatif pada mitra pengabdian Alfi Hidroponik. Kegiatan dilaksanakan dengan merancang kebutuhan sel surya pada usaha hidroponik. Batrai Aki 40 Ah dapat menjadi sumber energi listrik bagi usaha mitra yang kebutuhan dayanya 85 watt selama minimal 10 jam. Selain penerapan sel surya, pada pengabdian ini juga dikembangkan beberapa sensor untuk memonitor suhu dan kelembaban lahan pertahian. Kegiatan ini dapat menjawab kebutuhan mitra dan masih diperlukan penerapan teknologi lainnya pada usaha hidroponik untuk optimalisasi produksi mitra.
PEMANFAATAN TENAGA MATAHARI SEBAGAI SUMBER ENERGI PADA USAHA LAUNDRY UNTUK MENGURANGI PEMBAYARAN LISTRIK PLN Zaini Zaini; Darwison Darwison
Jurnal Hilirisasi IPTEKS Vol. 2 No. 1 (2019)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v2i1.341

Abstract

Listrik merupakan kebutuhan vital di zaman modern sekarang. Semua aspek kehidupan tidak bias terlepas dari pemakaian energi listrik. Dalam hal rumah tangga, banyak muncul peralatan listrik seperti kulkas, rice cooker, AC, mesin cuci, seterika dan lain-lain. Namum, harga listrik yang terus menaik akan menurunan standar hidup masyarakat. Salah satu standar hidup yang baru di zaman modern ini berupa muncul nya laundry berbiaya murah dan efektif. Di samping itu harga panel surya dan baterai yang cenderung turun akan memudahkan masyarakat untuk mencari sumber energi listrik baru selain sumber PLN. Hibah hilirisasi ini melakukan sosialisasi dan uji lapangan dari pembangkit listrik tenaga surya (PLTS) di beberapa usaha laundry kota Padang. Dari hasil sosialisasi ditemukan banyak pemilik laundry yang belum tahu mamfaat dari PLTS untuk usaha mereka dan takut akan resiko kebakaran yang mungkin muncul. Factor cuaca juga sangat mempengaruhi output PLTS.
Pemanfaatan PLTS Off-Grid untuk Meningkatkan Efisiensi Pengolahan Kopi di Nagari Lasi Kabupaten Agam: Utilizing an Off-Grid Solar Power System to Enhance Coffee Processing Efficiency in Nagari Lasi, Agam Regency Darwison Darwison; Zaini Zaini; Silvia Permata Sari; Firman Ridwan; Andi Pawawoi; Fauzan Wafi; Dilla Wediya; Irsyad Alghi Fary; Defriyan Hidayat; Fadhila Amanda; Reivan Arya Witama
Jurnal Hilirisasi IPTEKS Vol. 9 No. 2 (2026)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v9i2.917

Abstract

This program was undertaken to improve the efficiency and sustainability of post-harvest coffee and sugarcane processing in Nagari Lasi, Agam Regency, Indonesia, through the implementation of an off-grid solar photovoltaic (PV) system. Following the eruption of Mount Marapi, local farmers experienced a significant decline in productivity due to their dependence on diesel-powered machinery and limited access to reliable energy sources. To address these challenges, a 540 Wp off-grid solar PV system was installed to provide a clean, renewable, and sustainable power supply for coffee pulping and sugarcane milling. A participatory community development approach was adopted, actively engaging members of the Lasi Reborn Farmers Group throughout the project. The activities included a needs assessment, system design, procurement and installation of solar panels, brushless direct current (BLDC) motors, and maximum power point tracking (MPPT) controllers, followed by laboratory testing, field demonstrations, and operational training. The results demonstrated that the solar PV system performed effectively, achieving an energy conversion efficiency of 87%, reducing fuel-related operating costs by up to 94.4%, and decreasing coffee processing time by approximately 25%, while simultaneously minimizing environmental pollution. Furthermore, capacity-building activities and hands-on training significantly improved farmers' technical competencies and enhanced their energy self-sufficiency. Overall, the project demonstrates that renewable energy-based technologies can improve agricultural productivity, strengthen rural livelihoods, and support sustainable post-disaster recovery in farming communities. These findings highlight the potential of decentralized renewable energy systems as a practical and scalable solution for promoting resilient and sustainable rural development.
Pemberdayaan Petani Melalui Pemanfaatan Limbah Kayu Manis Sebagai Energi Alternatif Dengan Pirolisis Drum Tertutup di Nagari Malalak Kabupaten Agam: Empowerment of Farmers through the Utilization of Cinnamon Wood Waste as an Alternative Energy Source Using Closed-Drum Pyrolysis in Nagari Malalak, Agam Regency Darwison Darwison; Zaini Zaini; Silvia Permata Sari; Deddi Prima Putra; Firman Ridwan; Fauzan Wafi; Annita Elfia Rosa; Afwan Nasution; Ghina Salsabila
Jurnal Hilirisasi IPTEKS Vol. 9 No. 1 (2026)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jhi.v9i1.936

Abstract

Nagari Malalak Timur is a major cinnamon (Cinnamomum burmannii) production center, but faces critical post-harvest challenges. Weather-dependent drying processes delay sales, while abundant stem and leaf waste are openly burned, causing severe air pollution and energy loss. This community empowerment program explicitly aims to solve these environmental and economic issues by converting cinnamon stem waste into clean alternative energy using an optimized closed-drum pyrolysis system, while simultaneously enhancing farmers' technical capacities. The participatory action research approach involved the Toboh Organik Farmers Group. Implementation stages included waste potential mapping, fabricating a 30-kg-capacity pyrolyzer equipped with a Raspberry Pi Pico microcontroller and an electric blower for precise thermal control, and conducting comprehensive operational, maintenance, and safety (K3) training. Charcoal quality was evaluated against the SNI 01-6235-2000 standard. The intervention yielded significant improvements. Technologically, the pyrolyzer achieved a high conversion efficiency of 38%, producing premium charcoal with a calorific value of 6,780 kcal/kg and 6.2% moisture content. Environmentally, the integrated re-burning system reduced hazardous smoke emissions by 60% compared to open burning. Socio-economically, the program successfully decreased agricultural waste by over 60% and increased farmers' overall income by 30–35% through the creation of a new marketable product. These findings confirm that the introduction of controlled, locally adapted pyrolysis technology not only resolves waste and weather-dependency problems but also fosters rural energy self-sufficiency. The establishment of the "Malalak Hijau" enterprise highlights the program's substantial contribution to sustainable community empowerment and circular economy practices.
Plant Disease Identification Using Image Processing: A Systematic Literature Review Minarni Minarni; Muhammad Ilhamdi Rusydi; Darwison Darwison; Hermawan Nugroho; Budi Sunaryo
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 10 No 1 (2026): February 2026
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v10i1.7171

Abstract

This article is a literature review focusing on plant disease identification using image processing techniques. This review aims to provide a comprehensive analysis of dataset sources, preprocessing methodologies, segmentation techniques, feature extraction processes, and various classification methods, along with their associated accuracies. It also discusses challenges encountered and potential future research directions. Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol, a literature search was conducted in the Scopus database to obtain primary studies. The search covered Scopus-indexed journals and proceedings published by IEEE, Elsevier, Springer, MDPI, and ACM between 2019 and 2025. The initial identification phase yielded 9,286 studies screened. Further screening was performed based on specific eligibility criteria, including relevance to the topic, year of publication, subject area, document type, and articles written in English, resulting in the selection of 82 studies for the review. The findings indicate that the most commonly used dataset is PlantVillage, followed by field data. The dominant preprocessing techniques include image enhancement and augmentation. For segmentation and feature extraction, the most frequently used methods were k-means and CNN, respectively. Sixty-one studies achieved an accuracy exceeding 90%. However, several key challenges remain: data limitations, methodological issues, and practical constraints. Future research should focus on developing more representative datasets, hybrid approaches that integrate classical and deep learning methods, and lightweight, adaptive decision support systems suitable for real-world agricultural applications. This review supports continued progress in this field by providing valuable insights for researchers developing image-based methods for identifying plant diseases.
Co-Authors ., Bentar Abdul Rajab Abdul-Malek, Zulkarnain Abral, Hairul Adam Jordan Afwan Nasution Andi Pawawoi Andre Paskah Gultom Annita Elfia Rosa Ariadi Hazmi Arief Hadiwibowo Aulia . Bentar . Budi Rahmadya Budi Sunaryo Chatarina Umbul Wahyuni Deddi Prima Putra Defriyan Hidayat Dhanny Jufril Dilla Wediya Dwi Gustiono Eka Putra Waldi Ekaputra, Eri Gas Fadhila Amanda Fahranul Aderi Faisyal Razak Fajri, Rico Farhan Fadil Irsan Fauzan Wafi Fauzan Wafi Firman Ridwan Ghina Salsabila Hermawan Nugroho Ilhamdi Rusydi Irsyad Alghi Fary Laksono, Heru Dibyo M. A. Hafizi M. H. Ahmad M. Heru Setiawan M. Ilhamdi Rusydi Maemonah, Maemonah Melda Latif Minarni Minarni Mondrizal Mondrizal Mumuh Muharram Novizon, Novizon Rahmad Novan Nurhadi Rahmadi Kurnia Ratna Aisuwarya Razak, Faisyal Reivan Arya Witama Reni Desmiarti Reni Desmiarti Rian Wahyudi Rico Fajri Riko Nofendra Rudy Fernandez Rusydi, Ilhamdi Rusydi, M. Ilhamdi Rusydi, Muhammad Ilhamdi Silvia Permata Sari Surya Afnarius Syarkawi Syamsuddin Syukri Arief Syukri Yunus Syukur, Masril Tesya Uldira Septiyeni Tia Priska Sari Wahyudi, Rian Zaini Zaini Zaini Zaini Zaini Zaini Zaini Zaini Zaini Zaini Zaini, Zaini Zulkarnain Abdul-Malek