ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika最新文献

{"title":"Analisis Prediksi Path Loss Teknologi Seluler 5G Pada Sel Micro Urban Wilayah Kota Bandung","authors":"Dwi Aryanta","doi":"10.26760/ELKOMIKA.V9I3.548","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.548","url":null,"abstract":"ABSTRAKImplementasi teknologi seluler 5G di Indonesia perlu dilakukan kajian dalam beberapa aspek. Analisis nilai path loss pada sistem seluler merupakan pendekatan dalam aspek large scale fading untuk menghitung cakupan layanan. Penelitian ini melakukan kajian nilai path loss dengan mengambil kondisi di Kota Bandung dengan karakter sel urban mikro outdoor. Model prediksi yang digunakan pada kajian ini meliputi model SUI, ABG, CI, dan NYUSIM simulator menggunakan frekuensi kerja 3,5 GHz dan 28 GHz dengan lebar pita 100 MHz dan 800 MHz. Hasil pengujian memperlihatkan simulator NYUSIM memberikan nilai prediksi path loss yang paling mendekati nilai rata-rata path loss dengan nilai margin sebesar 1,25 dB untuk frekuensi 3,5 GHz dan 1,8 dB untuk frekuensi 28 GHz. Frekuensi kerja 28 GHz memiliki nilai path loss lebih tinggi dibandingkan frekuensi 3,5 MHz sebesar 19 dB. Nilai path loss pada kondisi LOS dan NLOS berdampak pada penurunan nilai path loss sebesar 35% pada frekuensi 3,5 GHz dan 26% pada frekuensi 28 GHz.Kata kunci: path loss, micro cell, urban, NYUSIM, LOS, NLOS ABSTRACTThe implementation of 5G cellular technology in Indonesia needs to be studied in several aspects. Analysis of the path loss value on the cellular system is an approach in the aspect of large scale fading to calculate service coverage. This research studies the path loss value by taking conditions in the city of Bandung with the character of outdoor micro urban cells. The prediction models used in this study include the SUI, ABG, CI, and NYUSIM simulators using working frequencies of 3.5 GHz and 28 GHz with a bandwidth of 100 MHz and 800 MHz. The test results show that the NYUSIM simulator provides a path loss prediction value that is closest to the average path loss value with a margin value of 1.25 dB for the 3.5 GHz frequency and 1.8 dB for the 28 GHz frequency. The 28 GHz working frequency has a path loss value higher than the 3.5 MHz frequency of 19 dB. The path loss value in LOS and NLOS conditions has an impact on reducing the path loss value by 35% at a frequency of 3.5 GHz and 26% at a frequency of 28 GHz.Keywords: path loss, micro cell, urban, NYUSIM, LOS, NLOS","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modul Deteksi dan Perekaman Data Gempa berbasis Database Earthquake Intensity (DEI)","authors":"Irnanda Priyadi, F. Hadi, Salwa Khotimah, Besperi Besperi","doi":"10.26760/ELKOMIKA.V9I3.648","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.648","url":null,"abstract":"ABSTRAKIndonesia, khususnya provinsi Bengkulu, adalah salah satu negara yang rawan bencana gempa. Hal ini disebabkan karena secara histografi, posisi wilayah Indonesia merupakan pertemuan tiga lempeng aktif yang setiap kali lempeng ini bergeser menimbulkan patahan yang menyebabkan terjadinya gempa bumi. Paper ini membahas tentang rancangan modul deteksi gempa yang diberi nama Earthquake Intensity Meter. Rancangan modul terdiri dari sensor MEMS MPU6050 dan 2 buah sensor piezoelektrik. Masing-masing sensor dipisahkan dengan jarak 10 meter dengan sensor MPU6050 yang menjadi pusatnya dan 2 sensor piezoelektrik hanya sebagai pemicu. Kombinasi sensor MPU6050 dan 2 sensor piezoelektrik mampu digunakan untuk membedakan getaran gempa dan bukan gempa dengan tingkat keberhasilan 32%. Aplikasi Vibrometer yang digunakan sebagai media kalibrasi, memiliki selisih 17% dengan intensity meter. Sedangkan akurasi sensor MPU6050 dalam rancangan modul memiliki selisih 11,17% dengan aplikasi vibrometer. Data hasil pendeteksian rancangan divisualisasikan secara realtime dan disimpan pada aplikasi DEI yang dirancang dengan VB 2010.Kata kunci: deteksi gempa, mpu6050, piezoelektrik, vibrometer, VB 2010 ABSTRACTIndonesia, especially Bengkulu province, is one of the countries prone to earthquake disasters. This is because histographically, the position of the Indonesian territory is a junction of three active plates which each time these plates shift, causing fractures that cause earthquakes. This paper discusses the design of an earthquake detection module called the Earthquake Intensity Meter. The module design consists of a MEMS MPU6050 sensor and 2 piezoelectric sensors. Each sensor is separated by a distance of 10 meters with the MPU6050 sensor at the center and 2 piezoelectric sensors only as a trigger. The combination of the MPU6050 sensor and 2 piezoelectric sensors can be used to distinguish between earthquake and non-earthquake vibrations with a 32% success rate. The Vibrometer application, which is used as a calibration medium, has a difference of 17% with an intensity meter. Meanwhile, the accuracy of the MPU6050 sensor in the module design has a difference of 11,17% with the vibrometer application. Data from design detection results is visualized in real time and stored in the DEI application designed with VB 2010.Keywords: earthquake detector, mpu6050, piezoelectric, vibrometer, VB 2010","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117194912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimasi Ekonomi dan Emisi Pembangkit Listrik di Kalimantan menggunakan Dragonfly Algoritmh","authors":"Bayu Setyo Wibowo, S. Handoko, Hermawan Hermawan","doi":"10.26760/ELKOMIKA.V9I3.619","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.619","url":null,"abstract":"ABSTRAKKebutuhan listrik di Kalimantan Selatan dan Tengah menjadi semakin bertambah dikarenakan meningkatnya jumlah penduduk dan ekonomi serta mahalnya biaya pembangkitan listrik. Tujuan penelitian ialah meminimalkan biaya pembangkitan termal dan memecahkan permasalahan ekonomi dan emisi. Penelitian menggunakan metode Dragonfly algortihm yang mengkaji tentang optimasi ekonomi dan emisi pada PLTU Asam-asam, Pulang Pisau dan PLTA Riam Kanan dengan membuat program dengan menginputkan Cost Function dan Emission Function. Didapatkan rata-rata biaya pembangkitan dan emisi dari tanggal 1 – 4 September 2020 yaitu pada kasus 1 biaya pembangkit sebesar Rp 335.855.120 dan emisi sebesar 628,6 ton, pada kasus 2 biaya pembangkit sebesar Rp 251.891.340 dan emisi sebesar 943 ton, pada kasus 3 biaya pembangkit sebesar Rp 167.935.460 dan emisi sebesar 1257,3ton. Faktor pembobotan akan mempengaruhi biaya pembangkitan dan emisi yang dihasilkan.Kata kunci: Pembangkit Listrik, Dragonfly algortihm, Faktor Pembobotan ABSTRACTThe demand for electricity in South and Central Kalimantan is increasing due to the increasing population and economy as well as the high cost of generating electricity. The research objective is to minimize the cost of thermal generation and solve economic and emission problems. This research uses the Dragonfly algorithm method which examines the economic optimization and emissions at LTU Asam-Asam, Pulang Pisau and PLTA Riam Kanan by making a program by inputting Cost Function and Emission Function. Obtained the average cost of generation and emissions from September 1 - 4 2020, namely in case 1 the generator cost is IDR 335,855,120 and the emission is 628.6 tons, in case 2 the generator cost is IDR 251,891,340 and the emission is 943 tons, in case 3 the cost of the generator is Rp. 167,935,460 and the emission is 1257.3 tonnes. The weighting factor will affect the cost of generation and the resulting emissions.Keywords: Power Plant, Dragonfly algorithm, Weighting Factor","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124807549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antena Mikrostrip Biosensor untuk Deteksi Virus pada Darah","authors":"Yusnita Rahayu, Meilita Kurniati, Inesti Lailatul Qodriyah","doi":"10.26760/ELKOMIKA.V9I3.604","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.604","url":null,"abstract":"ABSTRAKKemajuan teknologi gelombang mikro memainkan peran penting dalam berbagai aplikasi diagnosa dan deteksi penyakit. Penelitian ini mengusulkan dua model antena untuk mendeteksi virus menggunakan Antena Mikrostrip Biosensor yang beroperasi pada ISM band (2,4-2,5 GHz). Antena yang diusulkan disimulasikan pada Software CST dengan material substrat Roger 3010. Hasil simulasi yang diperoleh antena pertama beroperasi pada 2,46 GHz, return loss -19,76 dB, bandwidth 401,2 MHz. Antena kedua pada 2,45 GHz, return loss -22,51 dB, bandwidth 227,4 MHz. Hasil simulasi pengujian menggunakan phantom darah menunjukkan pergeseran frekuensi semakin rendah dengan antena pertama 2,38 GHz dan antena kedua 2,43 GHz. Pengukuran antena pertama beroperasi pada 2,5 GHz dengan return loss -21,55 dB dan antena kedua beroperasi pada 2,47 GHz dengan return loss -28 dB. Pengukuran antena menggunakan VNA menunjukkan pergeseran frekuensi semakin meningkat diikuti return loss semakin rendah dibandingkan dengan hasil simulasi.Kata kunci: antena deteksi virus, ISM, proximity coupled, mikrostrip, phantom.ABSTRACTAdvances in microwave technology play an important role in a wide variety of disease diagnostic and detection applications. This study proposes two antenna models for virus detection using a Microstrip Biosensor antenna that operates on the ISM band (2.4-2.5 GHz). The proposed antenna is simulated in CST software with Roger 3010 substrate material. The simulation results obtained by the first antenna operate at 2.46 GHz, return loss of -19.76 dB, a bandwidth of 401.2 MHz. The second antenna at 2.45 GHz, return loss of -22.51 dB, a bandwidth of 227.4 MHz. The test simulation results using blood phantom show that the frequency shift is getting lower with the first antenna at 2.38 GHz and the second antenna at 2.43 GHz. The first antenna measurement operates at 2.5 GHz with a return loss of -21.55 dB and the second antenna operates at 2.47 GHz with a return loss of -28 dB. Antenna measurement using VNA shows that the frequency shift is increasing followed by lower return loss compared to the simulation results.Keywords: antena for virus detection, ISM, proximity coupled, microstrip, phantom.","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129744258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Teknik Sortir Produk Pangan menggunakan Teknik Bio-impedansi","authors":"A. Alqap, Junas Haidi, Adhadi Kurniawan, Shintia Veronica, N. Supardi","doi":"10.26760/ELKOMIKA.V9I3.518","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.518","url":null,"abstract":"ABSTRAKKarakterisasi untuk memisahkan mutu-mutu yang berbeda dalam aplikasi industri dapat dipenuhi dengan menggunakan alat dengan kemampuan yang terbatas. Teknik sortir memanfaatkan sistem papan evaluasi Eval AD5933 EBZ berakurasi 0,5% dilakukan terhadap pisang kepok (musa spp) hasil perkebunan di Pulau Enggano, Provinsi Bengkulu. Sistem dinyalakan dengan sambungan listrik bertegangan 2,7 V – 5,5 V mengeksitasi gelombang dari frekuensi 4000 Hz sampai 100.000 Hz kepada tiga sampel, masing-masing tiga kali sapuan. Tanpa ada modifikasi yang diberikan, sistem mampu membedakan impedansi musa spp antara jenis-jenis mutu mentah, mengkal dan masak melalui diagram Argand yang digambar dari data impedansi masing-masing. Diagram Argand yang dihasilkan menunjukkan jenis mutu masak dari musa spp lebih besar (dalam Ohm) dari jenisj-jenis mutu di bawahnya. Sistem ini dapat membantu industri pembuatan tepung pisang yang memerlukan pemilahan jenis bahan baku bermutu tertentu. Kata kunci: sortir, mutu, buah pisang kepok, impedansi ABSTRACTCharacterization to sortir different qualities in industrial applications can be fulfilled by using a tool with limited capability. Sorting technique using a 0.5% accuracy Eval AD5933 EBZ evaluation board system has been carried out on kepok banana (musa spp) from the plantation of Enggano Island, Bengkulu province. The system powered by a 2.7 V – 5.5 V DC low-voltage excited waves from 4000 Hz to 100,000 Hz frequencies to three samples, three sweeps of each. Without any modification, the system has been able to segregate different quality types of unripe, almost ripe and ripe from their Argand diagram drawn from their impedance data. The Argand diagram characterizes that the quality type of banana ripe is more expanded (in Ohm) than the other quality types of below. The system is applicable for a banana flour manufacturing industry that requires the sorting of certain types of quality raw materials.Keywords: sorting, quality, musa banana, impedance","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"491 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124931491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Algoritma Epsilon Greedy pada Reinforcement Learning untuk Modulasi Adaptif Komunikasi Vehicle to Infrastructure (V2I)","authors":"Nazmia Kurniawati, Y. K. Ningsih, Sofia Debi Puspa, Tri swasono adi","doi":"10.26760/ELKOMIKA.V9I3.716","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.716","url":null,"abstract":"ABSTRAKKomunikasi Vehicle to Infrastructure (V2I) memungkinkan kendaraan dapat terhubung ke berbagai macam infrastruktur. Dengan kondisi kendaraan yang bergerak, maka kondisi lingkungan yang dilewati mempengaruhi parameter komunikasi. Implementasi modulasi adaptif pada skema V2I memperbolehkan sistem menggunakan skema modulasi yang berbeda untuk mengakomodasi perubahan kondisi lingkungan. Pada penelitian ini digunakan skema modulasi QPSK, 8PSK, dan 16-QAM dengan memanfaatkan reinforcement learning dan algoritma epsilon greedy untuk menentukan skema modulasi yang digunakan berdasarkan level AWGN. Dari hasil simulasi dengan kondisi nilai epsilon yang divariasikan dari 0.1 hingga 0.5 didapatkan bahwa semakin tinggi nilai epsilon maka semakin sering agen tidak memilih skema modulasi dengan reward tertinggi.Kata kunci: Reinforcement learning, Modulasi Adaptif, AWGN ABSTRACTVehicle to Infrastructure (V2I) communication allows vehicles to be connected to various infrastructures. Under the scenario of a moving vehicle, the environmental conditions which is passed by the vehicle will affect the communication parameters. The adaptive modulation implementation in the V2I scheme allows the system to use different modulation schemes to accommodate changing environmental conditions. In this study, the QPSK, 8PSK, and 16-QAM modulation schemes were used by utilizing reinforcement learning and the epsilon greedy algorithm to determine the modulation scheme used based on AWGN level. From the simulation results with the conditions of the epsilon value varying from 0.1 to 0.5, it is found that the higher the epsilon value, the more often the agent does not choose the modulation scheme with the highest reward.Keywords: Reinforcement learning, Adaptive Modulation, AWGN","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131033799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peningkatan Kinerja Switched Reluctance Generator dengan Pergeseran Sudut Penyalaan","authors":"Rizky Amalia, Slamet Riyadi, F. Setiawan, L. H. Pratomo","doi":"10.26760/ELKOMIKA.V9I3.690","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.690","url":null,"abstract":"ABSTRAKDewasa ini teknologi energi terbarukan biasanya menggunakan mesin listrik sinkron Alternating Current (AC) pada pembangkit listrik tenaga angin. Generator listrik sinkron AC menggunakan brush pada proses eksitasi yang membutuhkan perawatan berkala sehingga rumit jika diaplikasikan pada Pembangkit Listrik Tenaga Angin. Pada penelitian ini generator akan menggunakan mesin Switched Reluctance yang dioperasikan sebagai Switched Reluctance Generator (SRG). Untuk menghasilkan keluaran arus yang optimal, SRG akan dioperasikan dengan mengatur sudut penyalaan fasa menggunakan metode single pulse. Metode pensakelaran ini diatur oleh input capture fasilitas mikrokontrol dsPIC 30F4012. Penelitian ini telah diverifikasi dengan simulasi Simulink MATLAB dan pengujian alat. Hasil pengujian optimal dibuktikan pada sudut penyalaan θon = 40 derajat dan θoff = 170 derajat menghasilkan arus discharging sebesar 7.6 A dengan kecepatan 1647.1 RPM ditandai dengan bentuk gelombang arus yang ideal. Hasil arus discharging yang optimal dapat meningkatkan kinerja SRG, sehingga metode ini dapat diaplikasikan pada pembangkit listrik tenaga angin.Kata kunci: SRG, dsPIC30F4012, sudut penyalaan, single pulse ABSTRACTNowadays, renewable energy technology usually uses AC synchronous electric machines in wind power. AC synchronous generator uses a brush in the excitation process, which requires periodic maintenance so it is complicated if applied to wind power. In this research, the generator will use a Switched Reluctance machine that operated as a SRG. To produce an optimal current, the SRG will be operated by adjusting the ignition angle using the single pulse method. This method is controlled by input capture of the microcontroller dsPIC 30F4012. This research has been verified by simulating Simulink MATLAB and testing device. The optimal test results are proven at the ignition angle θon = 40 degree and θoff = 170 degree produces a discharging current of 7.6 A with a speed of 1647.1 RPM characterized by the ideal current waveform. The optimal discharging current results can improve the performance of the SRG, so this method can be applied to wind power.Keywords: SRG, dsPIC30F4012, the ignition angle, single pulse","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124413805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Harmonisa Penggerak Kecepatan Variabel terhadap Kinerja Motor DC FanTest Set","authors":"Siti Saodah, I. M. Wiwit, Ahmad Deni, Dja’far Sodiq, Bambang Puguh","doi":"10.26760/ELKOMIKA.V9I3.505","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.505","url":null,"abstract":"ABSTRAKFan test set merupakan salah satu peralatan penting laboratorium di Jurusan Teknik Konversi Energi yang digunakan untuk menguji karakteristik laju perpindahan fluida. Alat ini terdiri dari gandengan motor DC penguatan bebas dan kipas. Fan test set ini dapat menghasilkan aliran udara yang tetap atau berubahubah dengan menetapkan atau mengubah-ubah kecepatan putaran kipasnya. Kecepatan putaran kipas ini sendiri diatur melalui kecepatan putaran motor dc penggeraknya. Dalam kegiatan penelitian ini telah dilakukan perancangan dan pembuatan konverter ac/dc terkendali yang dapat mengubah daya listrik arus ac menjadi daya listrik arus dc yang dapat dikendalikan. Daya listrik dc variabel yang dihasilkan selanjutnya digunakan untuk menyuplai belitan jangkar motor dc agar kecepatan putaran kipas dan aliran udara dapat dikendalikan. Perangkat ini dapat menghasilkan tegangan keluaran dalam rentang 10 – 100 V dc yang mampu memutar motor dc dari 203,6 – 1849 rpm dan menghasilkan harmonisa yang sebesar 6,7% saat vibrasi motor mencapai 2,8 mm/s.Kata kunci: beban nol, fan test set, harmonisa, konverter ac/dc ABSTRACTFan test set is one of the important laboratory equipment in the Department of Energy Conversion Engineering which is used to test the characteristics of the fluid transfer rate. It consists of a coupled free-amplifying DC motor and fan. This fan test set can produce a fixed or changing airflow by setting or varying the fan speed. The rotational speed of the fan itself is regulated through the rotational speed of the dc motor driving it. In this research activity, the design and manufacture of a controlled ac/dc converter that can convert ac into controllable dc power has been carried out. The resulting variable dc power is then used to supply the DC motor anchor winding so that the fan rotation speed and air flow can be controlled. This device can produce an output voltage in the range of 10 - 100 V dc which is capable of rotating a dc motor from 203.6 - 1849 rpm and producing a harmonic of 6.7% when the motor vibration reaches 2.8 mm / s.Keywords: no load, fan test set, harmonics, ac/dc converter","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127804345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Penerapan DevOps pada Sistem Tertanam dengan ESP8266 menggunakan Mekanisme Over The Air","authors":"A. W. Nugraha, Imron Rosyadi, Fahmi Khoerullatif","doi":"10.26760/ELKOMIKA.V9I3.678","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.678","url":null,"abstract":"ABSTRAKDevOps mendorong percepatan pengembangan sistem. Namun bukti nyata penerapannya pada sistem tertanam belum mencukupi. Salah satu penyebabnya adalah kesulitan proses deployment pada perangkat. Konsep IoT menghubungkan sistem tertanam dengan jaringan yang memungkinkan proses pembaharuan firmware menggunakan mekanisme Over The Air (OTA). Tulisan ini mengusulkan infrastruktur DevOps untuk pengembangan sistem tertanam. Perangkat keras yang digunakan adalah microcontroller ESP8266. Sedangkan lingkungan DevOps menggunakan perangkat lunak PlatformIO, GitHub dan Travis CI. Pengujian dilakukan dengan mengubah user requirement yang kemudian diterapkan pada perangkat keras. Tahapan DevOps (build and test, release hingga deploy) telah berhasil dilakukan secara otomatis. Sistem mampu mendeteksi kesalahan penulisan kode sumber. Rerata waktu keseluruhan proses adalah 77,21 detik. Proses build and test mendominasi waktu proses dengan rerata sebesar 77,21 detik dan waktu deploy memiliki rerata 1,41 detik.Kata kunci: IoT, Sistem Tertanam, OTA, DevOps, ESP8266 ABSTRACTDevOps drives the acceleration of system development. However, the concrete evidence of its application in embedded systems is not sufficient. One of the causes is difficulty in the deployment process on the device. Firmware update using an Over-The-Air (OTA) mechanism is allowed by the IoT concept that connects embedded systems into a network. This paper is proposing a DevOps infrastructure for embedded system development. Proposed infrastructure using ESP8266 for the hardware and PlatformIO, GitHub, and Travis CI for the DevOps environment. Testing the proposed system is done by changing the user requirements that are applied to the hardware. The DevOps stages from building and test, release, and deployment have automatically been done. The system is also able to detect developer errors in writing source code. The average time of the whole process on trial was 77.21 seconds. The build and test process dominates the processing time with an average of 77.21 seconds and the deployment time is relatively short with an average of 1.41 seconds.Keywords: IoT, Embedded System, OTA, DevOps, ESP8266","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127449790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Filtering Power Divider menggunakan Filter SIW untuk Aplikasi WLAN 5,8 GHz","authors":"Hardi Nusantara, Arief Budi Santiko, Achmad Munir","doi":"10.26760/ELKOMIKA.V9I3.703","DOIUrl":"https://doi.org/10.26760/ELKOMIKA.V9I3.703","url":null,"abstract":"ABSTRAKDalam makalah ini dikembangkan sebuah pembagi daya yang terintegrasi dengan proses filtering yang dinamakan Filtering Power Divider (FPD) untuk mendapatkan ukuran perangkat yang compact. FPD yang diusulkan terdiri dari 2 buah Band Pass Filter (BPF) yang dirancang berdasarkan teknik Substrate Integrated Waveguide (SIW) untuk beroperasi pada frekuensi Wireless Local Area Network (WLAN) 5,8 GHz. Optimasi dilakukan dengan menggunakan sebuah perangkat lunak simulasi untuk menyelidiki pengaruh parameter filter yang berbeda terhadap proses pemfilteran serta tanggapan keluaran FPD. Substrat dielektrik Duroid 5880 dengan ketebalan 1,575 mm digunakan untuk merealisasi FPD dengan total dimensi 95 mm x 70 mm. FPD yang direalisasi memiliki tanggapan bandwidth sebesar 75 MHz pada rentang frekuensi 5,9 GHz hingga 5,975 GHz dan isolasi antar port keluaran sebesar 20 dB.Kata kunci: Band Pass Filter (BPF), filtering power divider, Substrate Integrated,Waveguide (SIW), Wireless Local Area Network (WLAN).ABSTRACTIn this paper power divider integrated with filtering process, named as Filtering Power Divider (FPD), is developed to achieve a compact size of the device. The proposed FPD is composed of 2 pieces of Band Pass Filter (BPF) designed based on Substrate Integrated Waveguide (SIW) to operate at the Wireless Local Area Network (WLAN) frequency of 5.8 GHz. The optimizations are carried out using a simulation software to investigate the effect of different filter parameters to the filtering process as well as to the output response of FPD. A Duroid 5880 dielectric substrate with the thickness of 1.575 mm is used to realized the FPD with the total dimensions of 95 mm x 70 mm. The realized FPD has a bandwidth response of 75 MHz in the frequency range of 5.9 GHz to 5.975 GHz and isolation between output ports is 20 dB.Keywords: Band Pass Filter (BPF); filtering power divider; Substrate Integrated Waveguide (SIW); Wireless Local Area Network (WLAN).","PeriodicalId":344430,"journal":{"name":"ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124785067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}