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PS Magister Teknik Elektro Fakultas Teknik Unud Jalan PB Sudirman, Denpasar, Bali, Indonesia
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Majalah Ilmiah Teknologi Elektro
Published by Universitas Udayana
ISSN : 16932951     EISSN : 25032372     DOI : https://doi.org/10.24843/MITE
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Majalah Ilmiah Teknologi Elektro (MITE) is peer review journal, published twice a year by the Study Program of Magister Electrical Engineering, Faculty of Engineering, Universitas Udayana. This journal discusses the scientific works containing results of research in the field of electrical, include power systems, telecommunications, informatics, and electronics. Authors are expected to include original scientific papers in accordance with the scope of the discussion of this journal including all aspects of the theory and practice are used.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 611 Documents
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Analisis Komputasi Paralel pada Image Encoding Framework untuk Konversi Citra Data Deret Waktu Sistem Kontrol Industri Helmy Rahadian; Muhammad Rizalul Wahid; Zaenal Arifin
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.P06

Abstract

Sensors in industrial control systems send a series of data each time, known as time series data, to the controller. The data contains important information for the controller to determine the control signal for the actuator. The appearance of anomalies in time series data can be detected using the Convolutional Neural Network (CNN) method utilizing image encoding techniques such as Gramian Angular Field (GAF) and Markov Transition Field (MTF). This technique converts time series data into images through data preparation, encoding, and conversion. Dividing extensive data into many smaller segments requires repeated encoding and conversion processes. Repeated processes that are done serially take a long time, which slows down the detection of anomalies and the responses that must be taken. This research applies parallel computation with Joblib and Mpire libraries on the GAF and MTF image encoding provided by the Python-based pyts library. The n_jobs configuration determines the number of CPU logical cores used to execute the program. According to the number of CPU logic cores of the computer, applying the value of n_jobs = 8 can save an average processing time of 63% (Joblib) and 49% (Mpire), which theoretically will be able to detect anomalies that occur at least every 62.73 ms (Joblib) and 86.20 ms (Mpire) compared to 167.51 ms in serial computing.
ANALISA PENGARUH BIT ERROR PADA TRANSMISI DATA VIDEO IMO Widyantara
Jurnal Teknologi Elektro Vol 4 No 2 (2005): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

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

Abstract

Proses kompresi video yang membuang redudansi spatial dan temporal membuat data yang dihasilkanmenjadi sangat sensitif terhadap error selama transmisi. Error yang terjadi pada sebagian kecil darideretan bit video yang telah terkode dapat menyebabkan penurunkan kualitas visual yang signifikan. Tulisanini akan menunjukan pengaruh bit error yang dihasilkan oleh derau kanal pada sinyal denganmemvariasikan Bit Error Rate (BER). Hasil penelitian menunjukan bahwa bit error berpropagasi secaratemporal [Error resilience] menyebabkan penurunan PSNR pada beberapa frame. Bit error terjadi padaposisi acak dalam deretan frame video sehingga sulit untuk diprediksi
RANCANG BANGUN MOBILE EDUGAME SEBAGAI SALAH SATU INOVASI PEMBELAJARAN DALAM PENGENALAN IKATAN ATOM PADA MATAPELAJARAN KIMIA UNTUK SISWA SEKOLAH MENENGAH ATAS Ida Bagus K Widiartha; Heri Wijayanto
Jurnal Teknologi Elektro Vol 9, No 1 (2010): (January - June) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

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

Abstract

Wyatt Slooper mengemukakan bahwa dalam proses belajar, pelajar belajar: 10% dari apa yang dibaca, 20% dari apa yang didengar, 30% dari apa yang dilihat, 50% dari apa yang dilihat dan didengar, 70% dari apa yang dikatakan, 90% dari apa yang dikatakan dan dilakukan. Penelitian ini mencoba menawarkan inovasi yang memungkinkan mendengar, melihat dan melakukan sehingga memberikan efek penyerapan yang maksimal. Inovasi tersebut adalah mobile edu game, yaitu permainan yang bertujuan memberikan materi pelajaran melalui media game sehingga siswa dapat menerima pelajaran sembari bermain, permainan yang mengasikan. Dengan Edugame ini juga diharapkan mengurangi dampak negative bermain game dan meningkatkan dampak positifnya. Dalam penelitian ini dibuat sebuah mobile edu game yang memberikan tantangan kepada pengguna dalam merangkai sebuah senyawa/unsur kimia, dengan dukungan J2ME dan MIDP. Senyawa dibentuk dengan mengisi struktur senyawa terlebih dulu dari atom-atom yang tersedia sehingga membentuk ikatan/senyawa. Pada level yang rendah ditawarkan struktur atom yang sederhana, kemudian meningkat kerumitannya sesuai dengan levelnya, disamping itu juga ada beberapa constrain yang membuat permainan menjadi lebih menarik, seperti gangguan dan waktu penyusunan. Implementasi penelitian ini menghasilkan sebuah game yang dapat dijalankan pada hand phone yang telah mendukung Java (java enabled), dengan demikian pengguna hand phone akan mendapatkan hiburan yang secara tidak langsung mendapat pelajaran khususnya mengenai ikatan kimia.
FUZZY LOGIC STATIC SYNCHRONOUS COMPENSATOR (FLSTATCOM) I Made Mataram
Jurnal Teknologi Elektro Vol 15 No 1 (2016): (January - June) 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.2016.v15i01p06

Abstract

Abstract— The application of fuzzy techniques bring significant changes specific to calculation and analysis ofconventional system. The application of FACTS (Flexible AC Transmission System) device have been improved the quality of voltage from the generator to the very large load. STATCOM is the most powerful equipment to improve the voltage on the electric power transmission network. The discussion in this study is devoted to FLSTATCOM. Fuzzy Logic models with two inputs is used as a controller IGBT, so as to improve the performance of conventional STATCOM. Single Machine Infinite Bus system into trial use FLSTATCOM. The result of simulation using MATLAB Simulink, the value of the voltage on each side received without using STATCOM generates a voltage of 217,3 kV, using STATCOM generates a voltage of 220.0 kV, and theuse of FLSTATCOM able to increase the voltage became 228.9 kV ( 5.34 % ).
Peramalan Kurs Rupiah Terhadap US Dollar Menggunakan Metode Hibrid Nyoman Sumerta Yasa; I Ketut Gede Darma Putra; N.M.A.E.D Wirastuti
Jurnal Teknologi Elektro Vol 16 No 3 (2017): (September - December) 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.2017.v16i03p06

Abstract

Peramalan adalah bagian integral dari kegiatan pengambilan keputusan manajemen. Ramalan yang dilakukan umumnya berdasarkan pada data masa lampau yang dianalisis dengan menggunakan metode- metode tertentu. Oleh karena itu, pada penelitan ini akan meramalkan data time series menggunakan metode Radial Basis Fuction, ARIMA dan Double Exponential Smoothing dengan menggunakan Matlab versi 8.1. Data yang digunakan adalah data kurs jual harian Rupiah terhadap US Dollar yang dimulai dari bulan Januari 2012 sampai dengan Maret 2014. Dari ketiga hasil ramalan, akan digunakan metode voting untuk memperoleh akurasi dari kondisi menguat atau melemahnya kurs rupiah terhadap US Dollar dan juga hasil ramalan digabungkan dengan metode hibrid. Dari hasil peramalan RBF, ARIMA, Double Exponential Smoothing diperoleh MAPE berturut-turut 0,66%, 3,32% dan 0,94% sedangkan akurasi kondisi menguat melemah sebesar 52,54%, 45,76% dan 52,54%. Dari hasil voting dari kondisi menguat dan melemahnya kurs diperoleh akurasi sebesar 54,24% dan setelah digabungkan dengan metode hibrid diperoleh MAPE sebesar 0,64% dengan akurasi sebesar 50,85%. Dapat dilihat bahwa untuk akurasi kondisi menguat dan melemah yang terbaik diperoleh dengan menggunakan metode voting sedangkan untuk MAPE terbaik diperoleh dengan metode hibrid. Diharapkan penelitian ini dapat membantu dalam menganalisa fluktuasi dari pergerakan nilai mata uang tertentu pada saat transaksi jual – beli valuta asing.
Sistem Pendukung Keputusan Pemilihan Pemenang Pengadaan Jasa Konstruksi Pada Pemerintah Kota Denpasar dengan Metode Saw Berbasis Fuzzy Wahyu Sanjaya; I N Sukajaya; I GA Gunadi
Jurnal Teknologi Elektro Vol 18 No 1 (2019): (Januari - April) 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.2019.v18i01.P03

Abstract

Procurement of Construction Services is an important activity in supporting development in the city of Denpasar. The procurement process is an activity that is susceptible to manipulation, so that the construction produced is not in accordance with the specifications that have been made. Therefore it is necessary to design a computerized system to accommodate these interests. Computerized, computerized decisions make the process of selecting providers transparent, thus minimizing fraud in the selection process. Current problems faced, the Goods / Services Procurement Service Working Group (ULP) conducting the assessment process are still in the form of a manual, so that the bidder's disapproval or dissatisfaction with the final results of the selection of winners on a job. This research is intended to build a decision-making system that can be used to assist the ULP Working Group in proposing / determining the winner of the tender conducted at the Denpasar City Government. The system designed to process the inputting data in the form of requirements that have been completed by participants in order to complete the required requirements of a job. System evaluation is based on calculations carried out by the ULP Working Group by conducting several evaluation processes namely evaluation of bids, administrative evaluation, technical evaluation and evaluation of qualifications. System output results in the form of (a) the value obtained from participants who bid on a job and (b) the best rating from the bidder, based on the value obtained by each bidder. Based on the tests that have been carried out, with employment data of 138 construction services work data from 2016 to 2017, the best level of accuracy obtained by the system is equal to 97.1%. These results are obtained based on testing actual data with data generated by the system. Based on the results of the accuracy obtained from the test results, this system can be recommended to assist the work of the Denpasar City ULP Working Group in conducting the assessment process. Keywords - Decision Support System, Government Tender, SAW, Fuzzy
Sistem Aplikasi Location Based Service untuk Pengembangan Kota Cerdas Agus Sukerta; Linawati Linawati; NMAE Dewi Wirastuti
Jurnal Teknologi Elektro Vol 14 No 1 (2015): (January - June) 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.2015.v14i01p05

Abstract

One way to accomplish the smart city is by utilizing application that build interaction between society and the government while providing the benefits to all stakeholders. This application systems should be reached easily and relatively cheap for the society, and they can be used anytime, anywhere. This paper describes how to develop applications that implement the Location Based Services (LBS) for Development of Smart City to build the Public Complaints Service Application System (PCSAS). The PCSAS was designed, built and then tested. This PCSAS was built with Web-based Client-Server architecture. On the client side using a web interface or mobile with Android operating system. This application uses a valid e-mail as a condition of enrollment, while accommodating Social Media interface particularly Facebook and Twitter to get into the system. The result of the use of this application system was an interaction between the community and the government in handling public complaints. Location information problems in the field may soon be known precisely by coordinates, so that the handling can be done quickly and with sufficient preparation equipment based on the information of the real conditions in the field in the form of photos and videos that are included in the complaint.
Analisis Perilaku Mean Dataset Perubahan Garis Pantai pada Hasil Spasialtemporal Metode Empirical Orthogonal Function (EOF) Ida Ayu Putu Febri - Imawati; Made Sudarma; I Nyoman Satya Kumara
Jurnal Teknologi Elektro Vol 16 No 1 (2017): (January - April) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

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Abstract

The purpose of this study is to apply EOF method on shoreline change resulting spatialtemporal analysis mode 1 and also to to prove the mean behavior on the spatial or temporal of its EOF outcomes. The data used was obtained from shoreline coordinates of shp file of the Bali island map and the result of breaking waves study, by using a one-dimensional modeling  yielded dataset or prediction shoreline changes during 91 months. Calculation EOF 1, the input matrix or dataset was initially not reduced by the mean but EOF 2 vice versa. Each matrix receive the same treatment were calculated covariance, eigen value, eigen vector and principal component. EOF calculations obtained the last five eigen value, the last five eigen vector, trace, principal component and variant data. Based on the results obtained were compared parameters of two matrices mentioned before. Spatially results both of  EOF 1 and EOF 2 shows the same eigen vector represented by the first mode of eigen vector. Similarly, the eigen value, trace and variance of data, produce the same information. Significant difference occurs in the principal component (temporal). EOF 1 shows that the value of the first month produces a positive value, second month until month 91th output are minus.  EOF 2 shows the value of the principal component the first month until the 37th month are in a positive position, then from month 38th to month 91th yielded negative results. Nevertheless EOF 1 and EOF 2 showed shoreline changes tend to be erosion.Tujuan dari penelitian ini adalah menerapkan metode EOF pada perubahan garis pantai sehingga menghasilkan analisis spasialtemporal mode ke-1 dan juga untuk membuktikan perilaku mean pada hasil spasial atau temporal hasil EOF tersebut. Data yang digunakan diperoleh dari koordinat garis pantai file shp dari peta pulau Bali dan hasil studi gelombang pecah, dengan menggunakan pemodelan satu dimensi menghasilkan dataset atau prediksi perubahan garis pantai selama 91 bulan. Perhitungan EOF 1, matriks input atau dataset awalnya tidak dikurangi dengan rata-rata tetapi EOF 2 sebaliknya. Setiap matriks menerima perlakuan yang sama dihitung covariance, eigen value, eigen vektor dan principal component. Dari perhitungan EOF diperoleh eigen value lima terakhir, eigen vcktor lima terakhir, trace, principal component dan variance data. Berdasarkan hasil yang diperoleh dibandingkan parameter dua matriks sebelumnya.Secara spasial hasil EOF 1 ataupun EOF 2 menunjukkan nilai eigen vector yang sama yang diwakili oleh eigen vector mode pertama. Demikian pula pada  eigen value, trace dan varian data,  EOF 1 dan EOF 2 menghasilkan informasi yang sama. Perbedaan yang siginifikan terjadi pada principal component (temporal). Dari EOF 1 didapatkan bahwa nilai temporal bulan ke-1 menghasilkan nilai positif, bulan ke-2 hingga bulan ke-91 output bernilai minus. Pada EOF 2 nilai principal component ke-1 hingga bulan ke-37 berada pada posisi positif, selanjutnya dari bulan ke-38 hingga bulan ke-91 menghasilkan nilai negatif.  Meskipun demikian  EOF 1 dan EOF 2 tetap menunjukkan garis pantai yang cenderung mengalami  erosi.DOI: 10.24843/MITE.1601.16 
Sistem Deteksi Kawasan Bebas Rokok Dengan Menggunakan Sensor MQ-7 Berbasis Raspberry PI Asa Arya Sudarman; Linawati Linawati; Ni Made Ary Esta Dewi Wirastuti
Jurnal Teknologi Elektro Vol 17 No 2 (2018): (May - Agustus) 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.2018.v17i02.P18

Abstract

This paper proposes a smoke detection tool that will be used to find out who will smoke in the classroom environment on campus.Implementation of the system smoker detector using Raspberry PI, sensor, webcam and also motor servo. Sensor that been used on the System to detect smoke from the cigarette is MQ-7, which is detect the ratio of Carbon Monocside (CO) on the smoke. If the system detecting the cigarette, camera of the system will be headed to source of the smoke, capture the subject and then send the photo into telegram through the API using wifi connection. After the university side will monitoring the system and handle the subject whom breaking the rules due to smoking in the campus area is not allowed. The result of the experiment is the system which designed for smoke detector can detect the source of smoke is going well and appropriate regard on the scenario and functionality design. From the results of the prototype, the prototype can detect the smoke that come from cigarettes according the location. The experiment on indoor area show the success level is get almost most value within 15 second and an average distance 300 cm. For result above 400cm get results below 50%.
Perancangan Hybrid System PLTS dan Generator Sebagai Catu Daya Tambahan Pada Tambak Udang Vaname: Studi Kasus Politeknik Keluatan Dan Perikanan Kupang I Made Aditya Nugraha; I Gusti Made Ngurah Desnanjaya; Lukas G. G Serihollo; Jhon Septin M. Siregar
Jurnal Teknologi Elektro Vol 19 No 1 (2020): (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.2020.v19i01.P18

Abstract

This reaserch discusses the design of the Hybrid System between Solar Power Plant and Generator as an additional power supply that will be carried out on the Shrimp Vanamei pond. This system will produce electrical energy needed in the cultivation of Vanamei Shrimp, both hatchery and enlargement activities. The use of solar power plants as one form of exploiting the potential of solar energy that is so large in East Nusa Tenggara and the lack of reliability of the electricity network. Based on the PV specifications that will be designed, in a day solar power plant can produce energy of 58.76 kWh, and can meet the electrical energy needs of all Vanamei Shrimp ponds. If in cloudy conditions and the energy produced by solar power plant is insufficient then a generator can be used as a substitute energy source.

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