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All Journal JURNAL ELEKTRO ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Medika Teknika : Jurnal Teknik Elektromedik Indonesia ROUTERS: Jurnal Sistem dan Teknologi Informasi Metris: Jurnal Sains dan Teknologi Cylinder : Jurnal Ilmiah Teknik Mesin
Duma Kristina Yanti
Universitas Katolik Indonesia Atma Jaya
Aerospace Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering

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Sistem Smart Monitoring pada Budidaya Tomat Cherry di Media Tanah Zefanya, Maria; Sereati, Catherine Olivia; Duma Kristina Yanti; Karel Octavianus; Lanny W
ROUTERS: Jurnal Sistem dan Teknologi Informasi Vol. 1 No. 2, Juli 2023
Publisher : Program Studi Teknologi Rekayasa Internet, Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (813.768 KB) | DOI: 10.25181/rt.v1i2.3128

Abstract

Living a healthy lifestyle is one of the important aspects for human well-being. One way to start a healthy lifestyle is by consuming fruits and vegetables. Cherry tomatoes have become a popular alternative for a healthy snack. The quality of healthy fruits is, of course, supported by healthy plant growth. Therefore, a smart monitoring system for cherry tomato plant growth was developed to assist cherry tomato farmers in monitoring the quality of plant growth. This system is designed using two systems: image processing using the Orange application to assess the fertility quality of plants, with data captured through a camera. The second system is an environmental monitoring system for plant growth, obtained through LDR, thermistor, and soil moisture sensors. The sensor data is processed using a Multiplexer and WeMos as the controller, and the results are displayed on the Thingspeak website. The designed system indicates the health quality experienced by the test plants, and users can view the sensor readings on the web to observe various environmental factors influencing the plants. Based on the results of several experiments, it is known that the system can function according to the initial goals, and environmental factors affect the quality of plant growth, although they may not be the primary factors.
Sistem Monitoring HeartRate dan SPO2 untuk Pendampingan Lansia dengan Raspberry Pi sebagai Gateway Ridwan Satrio Hadikusuma; Resi Sujiwo Bijokangko; Yudha Wijaya Matrutty; Duma Kristina Yanti Hutapea
Medika Teknika : Jurnal Teknik Elektromedik Indonesia Vol 5, No 1 (2023): October
Publisher : Universitas Muhammadiyah Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/mt.v5i1.18871

Abstract

Penelitian ini mengembangkan sistem pemantauan HeartRate dan SPO2 berbasis Raspberry Pi untuk lansia. Sistem ini memberikan pendampingan kesehatan real-time dan peringatan dini terhadap kondisi yang mengkhawatirkan. Menggunakan sensor MAX30102 yang terhubung ke Arduino Uno dengan Raspberry Pi sebagai gateway, sistem ini dapat mengukur HeartRate dan SPO2 dengan akurasi tinggi. Perangkat keras terdiri dari Raspberry Pi, Arduino Uno, sensor MAX 30102, dan modul GPS, sementara perangkat lunak dikembangkan dengan Python dan mencakup modul pengolahan data, pengiriman data, dan antarmuka pengguna real-time. Uji coba melibatkan lansia sebagai subjek, dan hasilnya menunjukkan akurasi yang memadai. Aplikasi monitoring yang digunakan mudah digunakan dan memberikan informasi yang jelas. Secara keseluruhan, sistem ini memberikan pendampingan kesehatan yang efektif dan diharapkan dapat meningkatkan kualitas hidup lansia serta mempermudah pemantauan kesehatan mereka.
Pengolahan Data Buah Menggunakan Metode Deep Learning Satria Pratama, Chrisantian; Kusuma, Edward; Kristina Yanti Hutapea, Duma
Jurnal Elektro Vol 15 No 1 (2022): Vol.15 No.1 April 2022: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v15i1.5121

Abstract

The use of artificial intelligence is increasingly widespread, one of which is in the use of detecting an object. In general, object detection is often used in tools that capture images such as cameras on cell phones or CCTV which is applied to e-tickets (electronic tickets). With deep learning technique in this article to detect fruit, it is hoped that it can be useful in everyday life such as a fruit sorting machine based on the level of maturity based on color or separating fruit from leaves in the fruit picking process.
Perancangan Jaringan Fiber To The Home Berbasis Gigabit Passive Optical Network Di Citra Garden Puri Cluste Denza Timothy Sutjipto, Marcellus; Octaviani, Sandra; Ghozali, Theresia; Windha Mahyastuty, Veronica; Kristina Yanti Hutapea, Duma
Jurnal Elektro Vol 16 No 1 (2023): Vol.16 No.1 April 2023: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v16i1.5129

Abstract

This research aims to design a GPON-based Fiber to The Home (FTTH) line in the Citra Garden Puri cluster Denza . The method used is to carry out field observations, by conducting surveys to determine the need for equipment that will be used in designing the route. After the survey is conducted, this project requires Google Earth Pro software to do the mapping of the spot that is used for the ODP and to create passages for the fiber. To make sure that all planning already meets the requirement, there are several calculationdone in this research such as; link loss budget, power link budget, power margin and risetime budget. The distance that were used in the calculation are calculated from the STO Cengkareng until the ONT on each customer. Based on the calculation, the result of the biggest loss for link loss budget are obtained from the upstream, in the amount of 22,0456 dB and the loss from downstream are equals to 21,5721 dB. The result that obtained for the upstream loss of power link budget are equals to -17,0456 dBm and -16,5172 dBm for downstream. The next calculation is power margin, from this project we obtained the lowest power margin for the upstream 6,9544 dB and 7,4288 dB for downstream. The last calculation obtained for this project is rise time budget, from the calculation the shortest data for the rise time budget upstream is 0,1001 ns and for the downstream is 0,1019 ns. Based on all the calculation, this project can be concluded as a success because all the calculation are between the boundary that is tolerated by PT Telkom.
Sistem Pemantauan Cerdas Berbasis Internet of Things pada Pusat Perbelanjaan Mourio Sutio, Peter; Eka Budiyanta, Nova; Kristina Yanti Hutapea, Duma; Indriati, Kumala
Jurnal Elektro Vol 15 No 1 (2022): Vol.15 No.1 April 2022: Jurnal Elektro
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/jurnalelektro.v15i1.5152

Abstract

Shopping centers in Indonesia are faced with the problem of corona virus pandemic. Shopping centers were temporarily closed by the government and experienced a decline in visitors and even income during the pandemic. In order for shopping centers to earn sufficient income, the government provides a policy for shopping centers by limiting the number of visitors, checking temperature using a thermo scanner or thermo gun, and using masks according to health protocol rules. For this reason, an intelligent monitoring system is needed to monitor the density of the number of visitors and check the temperature automatically to prevent transmission of the corona virus from crowded shopping centers. The intelligent monitoring system is realized in miniature using NodeMCU as a microcontroller, web pages as interface pages for shopping center managers in system monitoring, applications as interface pages for managers in monitoring systems and applications as interface pages for the public so they can see the number of visitors and remaining capacity. at a shopping center. The overall test results percentage obtained is 100% and it can be concluded that the intelligent monitoring system can work well.
Heart Sound Processing for Early Diagnostic of Heart Abnormalities using Support Vector Machine Paschalis, Sebastian Michael; Hutapea, Duma Kristina Yanti; Bachri, Karel Octavianus
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 8 No. 1 (2024)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v8i1.1031

Abstract

This paper addresses the critical issue of cardiovascular disease (CVD), the leading cause of global mortality, emphasizing the imperative for effective and early detection to mitigate CVD-related deaths. The research problem underscores the urgency of developing advanced diagnostic tools to identify heart abnormalities promptly. The primary objective is to create a Support Vector Machine (SVM) algorithm for accurate classification of different heart conditions, namely Normal heart, Mitral Stenosis, and Mitral Regurgitation. To achieve this objective, the study utilizes a dataset of heart sounds available online using a 10-fold cross-validation method. The focus is on evaluating the efficacy of various kernel functions within the SVM framework for heart sound classification. The findings demonstrate that the linear kernel exhibits superior accuracy and robustness in effectively classifying heart conditions. Notably, the proposed classification method attains an impressive 96% accuracy, highlighting its potential as a reliable tool for early detection of cardiovascular diseases. This research contributes to the ongoing efforts to enhance diagnostic capabilities and ultimately reduce the global burden of CVD-related fatalities.
Perbandingan Torka Cogging Generator Integral dan Fractional untuk Pembangkit Listrik Tenaga Tenaga Angin NUR, TAJUDDIN; YANASTANTO, GUSTIESAR ALBARRY; HALIM, MARCHELL MORDEKHAI; MULYADI, MELISA; HUTAPEA, DUMA KRISTINA YANTI; FRETES, ANTHON DE
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 11, No 3: Published July 2023
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i3.581

Abstract

ABSTRAKPenelitian ini membahas penurunan torka cogging pada generator sinkron magnet permanen untuk untuk aplikasi pada pembangkit listrik tenaga angin. Untuk meminimalkan nilai torka cogging, dapat dilakukan berbagai teknik, salah satunya adalah kombinasi teknik pangkasan magnet dan alur tiruan pada inti jangkar. Teknik ini diterapkan terhadap generator sinkron magnet permanen tipe integral slot dengan jumlah gigi alur 30 dan kutub 10 dan tipe fractional slot number dengan jumlah gigi alur 24 dan kutub 10. Berdasarkan hasil analisis menggunakan metode elemen hingga, didapatkan bahwa tipe fractional slot number memiliki penurunan torka cogging sebesar 98.51 % dari torka berbebannya, sedangkan penurunan torka cogging pada generator tipe integral slot number sebesar 75 % dari torka berbeban.Kata kunci: Generator sinkron magnet permanen, torka cogging, fractional slot number, integral slot number, pangkasan magnet, alur tiruan ABSTRACTThis research discusses the reduction of cogging torque on a permanent magnet synchronous generator for applications in wind power plants. To minimize the value of the cogging torque, various techniques can be carried out, one of which is a combination of magnet trimming techniques and artificial grooves on the anchor core. This technique is applied to an integral slot type permanent magnet synchronous generator with 30 grooved teeth and 10 poles and a fractional slot number type with 24 grooved teeth and 10 poles. Based on the results of analysis using the finite element method, it was found that the fractional slot number type has a torque reduction. cogging of 98.51% of the loaded torque meanwhile the decrease in cogging torque on the integral slot number type generator is 75% of the loaded torque.Keywords: Permanent Magnet Synchronous Generator, cogging torque, fractional slot number, integral slot number, magnet shaping, artificial groove
Spooling Device Optimization with IP Camera and Active Infrared Sensor SIREGAR, MARSUL; PRAWIRA, WASKITO; BACHRI, KAREL OCTAVIANUS; HUTAPEA, DUMA KRISTINA YANTI; PANJAITAN, LANNY
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 11, No 3: Published July 2023
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i3.625

Abstract

ABSTRAKDesain yang sangat padat pada lokasi gulungan kabel streamer pada kapal seismik dapat menimbulkan titik-lemah karena lokasinya di tengah geladak dan area kerja operator di geladak belakang. Hal ini meningkatkan risiko kerusakan peralatan dan risiko terhadap keselamatan operator. Operator harus berjalan bolak-balik atau menugaskan operator lain untuk memantau gulungan kabel streamer yang berarti diperlukan waktu tambahan selama pengoperasian. Kedua opsi tersebut berkontribusi terhadap paparan ekstra risiko keselamatan dan penggunaan operator yang tidak efisien. Pada penelitian ini IP camera digunakan untuk memonitoring gulungan kabel streamer dan active infrared sensor digunakan untuk mendeteksi titik lemah. Desain sistem yang diimplementasikan ini mengurangi titik lemah sehingga mengurangi risiko keselamatan, meningkatkan efisiensi waktu, dan mencegah kerusakan peralatan.Kata kunci: optimisasi, kapal seismik, kabel, perangkat penggulungan ABSTRACTThe compact design of streamer cable reel locations on seismic vessels creates blind-spots due to their location in the center of the deck and the operator’s work areas aft of the deck. This increases the risk of equipment damage and the risk to operator safety. The operator must walk back and forth or assign another operator to monitor the streamer cable reels which means additional time is required during operation. Both options contribute to the extra safety risk exposure and inefficient use of operators. In this research, IP camera is utilized for monitoring streamer cable reel and active infrared sensor to detect blind spots. The implemented system design reduces blind spots that decreasing safety risks, improves time efficiency, and prevents equipment damage.Keywords: optimization, seismic vessel, streamer cable, spooling device
Simulasi Pengendalian Kecepatan Putar Motor DC Menggunakan Metode Logika Fuzzy Hutapea, Duma Kristina Yanti; Sachi, Haenuki; Kusmanto, Willy; Herianto, David; Fernanto, Nico; Bachri, Karel Octavianus
Metris: Jurnal Sains dan Teknologi Vol. 24 No. 02 (2023): Desember
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i02.4725

Abstract

This paper discusses DC motor rotational speed control using fuzzy logic method. The system works by utilizing ultrasonic sensors to detect distance. The detected distance affects the rotational speed of the DC motor which is controlled by the Arduino UNO microcontroller. Fuzzy logic is applied to the Arduino UNO microcontroller in which distance as the input, and the rotational speed of the DC motor in the form of Pulse Width Modulation as the output. There are several classifications of distance: very close, close, normal, far and very far. In addition, there are several classifications in the motor rotational speed response: slow, very slow, medium, fast, and very fast. The design of the fuzzy logic system is carried out in the Arduino IDE application and MATLAB using the Mamdani method at the inference stage. Fuzzy logic system is run on the Arduino UNO microcontroller in which the simulation is carried outthrough Proteus application. The test results show that the largest percentage of errors/discrepancies between the Proteus system design and the MATLAB is 1.55%. In the future, this simulation can be applied to systems such as self-driving cars.
Design and Implementation of Two-Axis Solar Tracker Bachri, Karel Octavianus; Wilson; Mulyadi, Melisa; Wijayanti, Linda; Hutapea, Duma Kristina Yanti; Siregar, Marsul
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 9 No 2 (2023): OKTOBER 2023
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v9i2.4983

Abstract

Makalah ini membahas perancangan dan implementasi sistem penggerak panel surya 2 sumbu dengan menggunakan motor servo yang dikendalikan oleh mikrokontroler arduino uno, sistem ini bekerja berdasarkan masukan sensor LDR sebanyak empat buah yang dipasang pada masing-masing sisi panel surya dan satu buah yang dipasang di tengah modul solar panel tersebut.Sensor LDR pun dihubungkan pada mikrokontroller yang akan mengolah masukkan yang diberikan menjadi keluaran tegangan kepada motor servo.Motor servo yang dipakai diperancangan alat ini sebanyak dua buah yang akan meggerakkan panel surya menuju arah vertical dan horizontal. Pengujian dilakukan dengan beberapa tahap seperti pengujian hasil yang didapatkan oleh panel surya dengan berbagai kondisi,pengujian sensor cahaya dan pengujian keseluruhan.Sehingga mendapatkan hasil yang cukup baik dan memuaskan,kedua motor servo dapat bergerak menerima hasil keluaran yang diberikan oleh mikrokontroller dan kelima sensor LDR dapat menerima cahaya matahari dan mendeteksi arah cahaya matahari secara cukup baik sehingga perancangan alat mendapatkan hasil keseluruhan secara cukup baik. Hasil keseluruhan daya yang didapat secara maksimal oleh panel surya sebanyak 12V yang akan bergerak mengikuti arah cahaya matahari.
Co-Authors Bachri, Karel Octavianus Catherine Olivia Sereati Eka Budiyanta, Nova Fernanto, Nico Fretes, Anthon de HALIM, MARCHELL MORDEKHAI Herianto, David Indriati, Kumala Karel Octavianus Kusmanto, Willy Kusuma, Edward Putra Lanny W Melisa Mulyadi Mourio Sutio, Peter Nur, Tajuddin PANJAITAN, LANNY Paschalis, Sebastian Michael PRAWIRA, WASKITO Resi Sujiwo Bijokangko Ridwan Satrio Hadikusuma Sachi, Haenuki Sandra Octaviani Satria Pratama, Chrisantian Siregar, Marsul Theresia Ghozali Timothy Sutjipto, Marcellus Wijayanti, Linda Wilson Windha Mahyastuty, Veronica YANASTANTO, GUSTIESAR ALBARRY Yudha Wijaya Matrutty Zefanya, Maria