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All Journal Jurnal SPEKTRUM Majalah Ilmiah Teknologi Elektro Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Majalah Ilmiah Teknologi Elektro

Yoga Divayana

Electrical Engineering Department Faculty Of Engineering, Udayana University Bali, Indonesia

Author-ID : 2932674

Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics Other

Published : 63 Documents Claim Missing Document

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PERANCANGAN APLIKASI BASE STATION DALAM SISTEM KOORDINASI ROBOT SEPAK BOLA BERODA DENGAN MULTI THREAD Komang Edy Surya Prabowo; Yoga Divayana; Pratolo Rahardjo
Jurnal SPEKTRUM Vol 9 No 4 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The Indonesian Wheeled Football Robot Contest (KRSBI Beroda) is one of the divisions of the Indonesian Robot Contest (KRI). At KRSBI Beroda robots are expected to be able to move automatically by using the Base Station as a communication center between robots in the same team. Base Station has a function to forward orders from the referee or RefBox (Referee Box) to the robot. This study aims to add features to the Base Station by displaying the position of two robots in the field in animation using the multi-thread method to facilitate strategy formulation. The result is that the Base Station that is made can display the position of two robots in the field without any errors.

PERBANDINGAN ALGORITMA SUPERVISED MACHINE LEARNING UNTUK SISTEM PENGHINDARAN HALANGAN PADA ROBOT ASSISTANT UDAYANA 02 (RATNA02) Yohanes Andre Setiawan; Yoga Divayana; Wayan Widiadha
Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Supervised Machine Learning can make robots smarter by making decisions automatically. This study compares various Supervised Machine Learning algorithms to determine the best algorithm that can be used on Robot Assistant Udayana 02 (RATNA02). The algorithms to be compared are Artificial Neural Network (ANN), Support Vector Machine (SVM), Decision Tree (DT), Random Forest (RF), Naïve Bayesian (NB), and K-Nearest Neighbor (KNN). Models were created using the TensorFlow and SKLearn libraries. The model is trained using 100.000 data of left sensor, right sensor, front sensor, robot offset, and data label. Data preprocessing is done using MinMaxScalar and LabelEncoder. The comparisons that will be measured are accuracy, training duration, and file size of the model. DT and RF algorithms get 100% accuracy followed by ANN, KNN and SVM with 99.87%, 97.42% and 98.52% respectively, and NB with 87.34%. Fastest training duration was achieved by NB for 0.03 seconds, followed by DT for 0.08 seconds, while other algorithms took more than one second. The smallest file size is owned by NB with a size of 2kb and DT ranks second with 4kb, other algorithms have a file size of more than 25kb. Decision Tree Algorithm is the best because the duration of the model training is relatively fast, the file size is small, and the accuracy is high.

Pendeteksi Jumlah Orang pada Sistem Bangunan Pintar Menggunakan Algoritma You Only Look Once I Putu Sudharma Yoga; Gede Sukadarmika; Rukmi Sari Hartati; Yoga Divayana
Majalah Ilmiah Teknologi Elektro Vol 22 No 1 (2023): (Januari - Juni) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i01.P02

The development of the Internet of Things today is very rapid. one form of this development is a Smart-Building or smart building. Smart buildings require a form of system that can monitor the building in real time and efficiently. in this study designed a prototype form of a smart building system by adding a detector for the number of people using the ESP32cam camera sensor. The number of people object detection adapts the careful YOLOv3 Algorithm to 5 different lighting conditions, dimmed 50% and 75%, increased 50% and 75% and normal conditions. The results of this implementation show that the mAP value exceeds 90% in all of these lighting conditions. The YOLOv3 algorithm applied to the smart building prototype system has succeeded in detecting and counting the number of people objects in an image captured by the camera sensor. Keywords— Internet of Things; Object Detection; Smart Building; YOLO

Proteksi Konsleting Listrik Dengan Memutus Jarak Jauh Arus 3 Phasa Beban Besar Dengan Kombinasi Solid State Relay (SSR) dan IoT NodeMCU 8266 Menggunakan Aplikasi Blynk di Sub Panel Gedung Telkomsel Smart Office Renon Denpasar Amien Harist Hardiansyah; Rukmi Sari Hartati; Yoga Divayana
Majalah Ilmiah Teknologi Elektro Vol 22 No 1 (2023): (Januari - Juni) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i01.P09

70% of building fires in Indonesia are caused by electrical short circuits, the rest are caused by other things such as negligence and also gas. Electrical short circuits contribute to the biggest problem in cases of building fires in Indonesia due to concern for maintenance and checking which is often missed due to problems with routine and periodic checking schedules that are not monitored in a lifetime or continuously. One of the methods used to overcome this problem is to continuously monitor the measurement values on the electrical sub-panels in real time. Manual checking is no longer effective due to electrical problems. One minute ago we checked and we can conclude that the panel is in good condition and safe. Because electricity can suddenly have problems without us realizing it and it really needs to be handled extra quickly to take action to cut off the power lines so that short circuits or hot copper sections do not occur which can cause panel fires and can also cause building fires. With today's increasingly sophisticated digital technology, we can innovate by implementing IoT (Internet Of Thing) using the Bynk Android Application as a remote control for monitoring load values and also being able to trigger 3-phase power lines using only a smartphone anywhere as long as the internet is connected so that when If there is an electrical problem with the sub panel inside the building, it will be handled/disconnected immediately. From the research results obtained, the Solid State Relay component can be combined with a microcontroller as the main control line to cut off large electric currents, where the microcontroller uses a 5 Volt input control and SSR (Solid State Relay) uses a 3 Volt - 32 Volt output so that it can be modified and can cut off and monitor traffic only with a smartphone using the Blynk Application. Keyword—Aplication Blynk; short circuits; Protection; SSR (Solid State Relay)

Perancangan Fitur Deteksi Kemiripan Dokumen Jawaban Tugas Mahasiswa pada Sistem Manajemen Pembelajaran dengan Metode K-Shingling dan Cosine Similarity Komang Nova Artawan; Rukmi Sari Hartati; Yoga Divayana
Majalah Ilmiah Teknologi Elektro Vol 22 No 1 (2023): (Januari - Juni) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i01.P06

Technology development can be used to support the teaching and learning process so it can runs more effectively and efficiently, and one of the applications that can be used to support this process is the Learning Management System (LMS). LMS provides an integrated platform starting from delivering learning materials to students, and evaluating learning process. The evaluation method that can be done at the LMS is giving assignments to students, and students can do submission by uploading their documents assignment answer. The common problem is many students do plagiarism by duplicate the answers of other students. To overcome these problems, this study will implement feature in Course Assignment Menu in LMS to detect the similarity of student assignment document using K-Shingling and Cosine Similarity methods. The K-Shingling algorithm is used to form shingles or word fragments based from all text in the task answer document that has gone through the pre processing stage, then each document have shingle value vector which will be used to compare the similarity values between documents using Cosine Similarity. The results obtained in this study is the developed feature is capable to detecting the similarity percentage of the assignment answer documents from each student, and from that percentage value it can indicate whether the students assignment answers is plagiarism to other students assignment answers. Keyword : LMS; plagiarism; K-Shingling; Cosine Similarity

Sistem Pelaporan dan Monitoring Data Limbah Pada Dinas Lingkungan Hidup dan Kebersihan Kabupaten Badung Wijaya, Anak Agung Ngurah Mahendra; Hartati, Rukmi Sari; Divayana, Yoga
Jurnal Teknologi Elektro Vol 22 No 2 (2023): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i02.P04

In the waste reporting process is still done manually, so the hotel is required to come to the Badung Regency Environment and Hygiene Office and then submit the report. These activities cause the reporting process to require a long duration and the progress of the report cannot be monitored by the hotel. The formulation of the problem in this study is how to report and monitor waste data from hotels quickly using the Waste Data Reporting and Monitoring System. The purpose of this research is to help hotels, especially in Badung district, in providing waste reporting quickly. In making this system, the design concept goes through the stages of data collection, Cross Functional Flowchart, Context Diagram, Level 0 Data Flow Diagram, Entity Relationship Diagram, Conceptual Database and Interface Design. And then implement it with Hypertext Preprocessor Programming (PHP), Bootstrap Framework, MySQL.

Analisis Tingkat Efektivitas UI/UX Sistem Informasi Darmawan, I Gede Hadi; Kumara, I Nyoman Satya; Divayana, Yoga
Jurnal Teknologi Elektro Vol 23 No 1 (2024): (Januari - Juni ) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2024.v23i01.P12

Good applications and information systems have an attractive interface that is easily understood by users. A good system must also be widely accepted and used by all users. Analysis of the level of effectiveness of UI/UX information systems has been using various types of different methods so that it takes a relatively long time to learn each method that is most suitable and effective. Therefore, this study aims to analyze the level of effectiveness and efficiency of the interface and user experience (UI/UX) of information systems based on various types of methods that are generally used. The method used in this research is the literature study method, by exploring and analyzing previous research related to the measurement and analysis of UI/UX in the context of information systems. The results of this research show that the level of effectiveness of UI/UX of information systems can be measured quantitatively, accompanied by statistical analysis that reflects the level of effectiveness of the 5 commonly used methods in general. In addition, this research also shows the obstacles faced in improving the effectiveness of UI/UX in information systems, as well as the importance of paying attention to good UI/UX so that users are comfortable and can easily use the system. The output of this research can provide new insights related to how much the level of effectiveness of UI/UX on information systems. And can be a reference for other studies in choosing the appropriate UI/UX effectiveness measurement analysis method.

Peranan Kalibrasi Pada Alat Ukur : Literature Review Pramudya, Lintang; Kumara, I Nyoman Satya; Divayana, Yoga
Jurnal Teknologi Elektro Vol 23 No 1 (2024): (Januari - Juni ) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2024.v23i01.P05

Calibration now has an important role in determining the operational suitability of measuring instruments in various fields. Currently, equipment, especially measuring instruments for public and public facilities, has not yet been properly calibrated according to existing regulations. Calibration is carried out to ensure data validity Which produced frommeasuring instrument. Calibration acts as a process to ensure the accuracy, precision, and reliability of measuring instruments. This article investigates several literatures related to the role of calibration in improving the quality of measuring instruments based on calibration methods that can be used according to the urgency. The results of assessing the operational feasibility of equipment or measuring instruments are determined through a calibration process. Apart from that, calibration can be carried out using several methods such us the single point calibration method, multi point calibration method, and reference instrument calibration method. Reviews based on useful calibration literature in the fields of health, environment, technology, maritime and aviation. Implementing appropriate and documented calibration is important in supporting valid data on medical devices, scientific research, traceability of sensors from a new system, guaranteeing data reliability, and providing reliable services, as well as having a positive impact on various aspects of life and technological development.Keywords—Benefits of calibration; Calibration; Calibration method; Measuring instrument; Traceability.

RANCANG BANGUN MODUL TRAINER KIT MATA KULIAH SISTEM KENDALI+LAB BERBASIS INTERNET OF THINGS (IoT) Hernandi, William; Rahardjo, Pratolo; Alit Swamardika, Ida Bagus; Divayana, Yoga; Oka Saputra, Komang
Jurnal SPEKTRUM Vol 11 No 2 (2024): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar

Along with the development of technology, control systems can now control various devices using smartphones connected to the internet remotely (Internet of Things). In order to have a good understanding of this field, universities have a very important role as an education institution. One of them is Udayana University through the Control System + Lab Course in the Independent Campus Learning Curriculum. This study aims to design an IoT-based Lab + Control System Trainer Kit Module using DevKit ESP32. The designed system includes an IoT-based DC motor control system using an L298N motor driver, an IoT-based water cooling control system using a DS18B20 temperature sensor, and an IoT-based water level control system using an HC-SR04 ultrasonic sensor. The system will be controlled through an application that has been created and installed on a smartphone connected to the internet so that it can be tested and analyzed to draw conclusions.

RANCANG BANGUN SISTEM PENJADWALAN DAN KONTROL KANDANG KELINCI BERBASIS INTERNET OF THINGS Alie Sulthan, Mayben Sayyidina; Divayana, Yoga; Rahardjo, Pratolo
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p29

These days technology has developed rapidly, almost covering all aspects in humas life for example is automation system. The automation system works without human intervension and complete all works independently. Existing technology can already be connected to each other via the internet network so that it can transmit or receive data automatically. The Internet of Things (IoT) can support automated systems by providing real-time information so that users can monitor the performance of these automated systems. This research was to develop rabbit cage by utilizing microcontroller as monitoring system. The system utilizing Internet of Things (IoT) as monitoring medium between users and devices to help users monitor their rabbit cage remotely. The design installed several sensors such as ultrasonic, temperature, load cell sensors, DS18B20 and water level sensors. This research used Arduino Mega 2560 as main microcontroller and NodeMCU ESP8266 as communication device between the tools and database. The tools use android application on user smartphone that fuctions real time monitoring for the cage. Based on the results of this research by using Arduino Mega as microcontroller board to controlling and monitoring rabbit’s cage has succesfully in monitoring the cage via internet through the NodeMCU ESP8266 intermediary according to the design.

Co-Authors Alie Sulthan, Mayben Sayyidina Amien Harist Hardiansyah Anak Agung Arta Darmika Anak Agung Ngurah Mahendra Wijaya Arya Sukma Krisnayoga Darmawan, I Gede Hadi Debbi Irfan Mudhoep Elba Duta Nugraha, I Putu Gede Humaswara Prathama Gede Prananda Putra Gede Sukadarmika Hernandi, William I Gede Hadi Darmawan I Gede Yogi Astawan I Gst Agung Putu Raka Agung I Gusti Ngurah Yoga Pawitra I Kadek Krisna Angga Pamungkas I Made Arya Budhana I N Satya Kumara I Nyoman Benny Rismawan I Nyoman Edy Saputra I Putu Ade Chandra Priyatna I Putu Astya Prayudha I Putu Sudharma Yoga I. M. R. A Anantajaya Ida Bagus A. Swamardika Ida Bagus Agung Eka Mandala Putra Ida Bagus Leo Mahadya Suta Indra Christian, Febry Kadek Bintang Anjasmara Komang Edy Surya Prabowo Komang Nova Artawan Komang Oka Saputra Linawati Linawati Lintang Pramudya Luh Ika Dhivtyasari Suryani Made Dwi Mulyawan Moch. Farhan Arieffadillah Muhammad Namiruddin Al Hasan N. M. A. Wijaya Ni Ketut Novia Nilasari Ni Luh Ade Mita Rahayu Dewi Ni Made Ary Esta Dewi Wirastuti Oka Saputra, Komang Pramudya, Lintang Pratolo Rahardjo Purwania Ida Bagus Gede Putri Suardani Rukmi Sari Hartani Rukmi Sari Hartati Rukmi Sari Hartati Siti Ayu Oktavianti Surya Pramana Tander Risard Lowongan Tjok Gede Indra Partha Wayan Widiadha Wijaya, Anak Agung Ngurah Mahendra Yohanes Andre Setiawan

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