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All Journal International Journal of Electrical and Computer Engineering IAES International Journal of Artificial Intelligence (IJ-AI) Transmisi: Jurnal Ilmiah Teknik Elektro Techno.Com: Jurnal Teknologi Informasi TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Mahasiswa TEUB Jurnal EECCIS e-Jurnal Arus Elektro Indonesia Journal of Information Systems Engineering and Business Intelligence ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Teknologi dan Sistem Komputer Network Engineering Research Operation [NERO] Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Indonesian Journal of Electrical Engineering and Computer Science JAREE (Journal on Advanced Research in Electrical Engineering) International Journal of Engineering, Science and Information Technology Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Rahmadwati Rahmadwati
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Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation

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PENGGUNAAN DISTRIBUTED CONTROL SYSTEM SEBAGAI PENGONTROLAN KETINGGIAN AIR PADA MINIATUR PENGOLAHAN AIR Shaskia Vilardl Ri Cahya; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol 6, No 4 (2018)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Kebutuhan air bersih di daerah curah hujan rendah seperti di Provinsi Nusa Tenggara Timur, menjadi hal yang sangat penting. Karena ketersediaan air dengan kebutuhan warga tidak sebanding. Dalam memenuhi kebutuhan air diperlukan sebuah alat yang dapat mengatasi air bersih. Air sungai memiliki bakteri yang sangat tinggi, sehingga di perlukan pengolahan air untuk menghasilkan air bersih. Proses pengolahan air sungai yang dilakukan dengan 2 proses. Filtrasi dan pemanasan, adalah proses menghasilkan air bersih melalui pengolahan pemanasan dan filtrasi yang diolah dari air sungai agar layak digunakan untuk memenuhi kebutuhan sehari-hari. Agar lebih memahami proses yang terjadi pada pengolahan air maka dibuatlah mini-plant proses yang mewakili proses pengontrolan ketinggian air. Oleh karena itu dalam hal pengontrolan prosesnya dibutuhkan sebuah Distributed Control System (DCS). Dengan DCS, proses pengontrolan ketinggian air pada pengolahan air dapat secara mudah dimonitor. Dengan pemanfaatan graphic mode sebagai Human Manufactur Interface (HIS) yang dapat secara mudah diamati perubahan variabel-variabel yang terjadi didalam proses pengontrolan. Dalam proses pengontrolannya yaitu sistem pengontrolan ketinggan air pada tangki. Pada penelitian ini menggunakan kontroler on-off dengan sistem pengontrolan ketinggian air. Dari hasil pengujian didapat sistem pengontrolan ketinggian air memiliki settling time sebesar 85 detik dengan recovery time sebesar 9 detik dan error sebesar 1,6%.Kata kunci : Distributed Control System (DCS), Ketinggian air, on-offABSTRACTThe need for clean water in low rainfall areas such as in East Nusa Tenggara Province, becomes very important. Because of the availability of water to the resident's needs are not comparable. In meeting water needs required a tool that can cope with the clean water. River water has very high bacteria, so that needs water treatment to produce clean water. River water treatment into clean water with 2 process. Filtration and heating, is the process of producing clean water through the processing of heating and filtration processed from river water that is suitable to be used to meet daily needs. To better understand the processes occurring in the water treatment then made a mini-plant processes that represent the process of controlling the water level. Therefore, in terms of controlling the process takes a Distributed Control System (DCS). With DCS, process control of water level in water treatment can be easily monitored. With the utilization of graphic mode as Human Manufactur Interface (HIS) that can be easily observed changes in variables that occur in the control process. In the process of controlling the system of controlling the water level in the tank. This research use on-off controller with water level controlling system. The test results obtained water level control system has a settling time of 85 seconds with a recovery time of 9 seconds and an error of 1.6%.Keywords: Distributed Control System (DCS), Water Level, on-off
PENGATURAN KEKENTALAN CAIRAN LIMBAH PADA SISTEM PENGADUK BIODIGESTER Gigih Gumilar; M. Aziz Muslim; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol 4, No 2 (2016)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Makalah ini menyajikan hasil penelitian berupa terbentuknya cairan limbah digester yang merata dari hasil pencampuran kotoran sapi dengan air. Tahap pengadukan merupakan tahap awal dari pembuatan biodigester. Pada tahap ini kekentalan dari cairan limbah digester perlu diperhatikan. Karena kekentalan dari cairan limbah digester akan menentukan hasil output gas metana yang dihasilkan. Dan selain itu akan mempermudah proses fermentasi setelahnya. Sistem pengadukini merupakan prototype yang dibuat sendiri. Pada penelitian ini diharapkan campuran dari limbah kotoran sapi dapat bercampur dengan air secara merata. Nilai yang ditetapkan untuk kekentalan saat limbah kotoran sapi dan air adalah 70 – 75 cPois. Untuk mendapatkan nilai tersebut akan digunakan kontroler on-off berbasis Arduino Uno dengan harapan diperoleh suatu desain pengendailian kekentalan cairan limbah yang seperti diinginkan.Perancangan dan pembuatan sistem pengendalian kekentalan cairan limbah digester ini berhasil dilakukan dengan menggunakan kontroler on-off dengan nilai dead band 70-75 cPois. Sistem pengaduk digester dapat mencapai nilai steady pada 73.527 cPois dengan waktu sttling time 107 detik. Didasari dari nilai tersebut perancangan perangkat lunak untuk sistem pengaduk digester menggunakan Arduino Uno ini dapat bekerja dengan baik pada karena dapat menjaga nilai kekentalan pada kisaran 73.395-73.539 cPois.Kata Kunci—digester, kontroler on-off, biogas, strain gauge, viskositas.
Sistem Diagnosis Kanker Servik Berdasarkan Karakteristik Morfologi Rahmadwati Rahmadwati
Jurnal EECCIS Vol 7, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Penelitian ini mengkaji diagnosis kanker serviks berdasarkan karakteristik morfologi sel serviks. Algoritma yang dikembangkan meliputi beberapa langkah: pra-pengolahan, segmentasi citra, inti dan sitoplasma deteksi, perhitungan fitur, dan klasifikasi. Algoritma K-means clustering berdasarkan segmentasi warna digunakan untuk memisahkan citra biopsi serviks menjadi empat daerah: latar belakang, inti sel, stroma dan sitoplasma. Karakteristik morfologi sel serviks digunakan untuk ekstraksi fitur gambar histologi serviks. Berdasarkan empat fitur diskriminatif: 1) rasio inti ke sitoplasma, 2) diameter inti, 3) faktor bentuk dan 4) pleiomorphic inti gambar histologi serviks diklasifikasikan. Kemudian citra dianalisis dan diklasifikasikan ke dalam kelas yang sesuai. Metode ini digunakan untuk mengklasifikasikan citra kanker serviks menjadi normal, kanker pra dan ganas.Kata Kunci—diagnosis, kanker servik, karakteristik, morfologi
Identifikasi Sel Acute Lymphoblastic Leukemia (ALL) pada Citra Peripheral Blood Smear Berdasarkan Morfologi Sel Darah Putih Muhammad Dzikrullah Suratin; Rahmadwati Rahmadwati; Aziz Muslim
Jurnal Arus Elektro Indonesia Vol 1 No 3 (2015)
Publisher : Fakultas Teknik, Universitas Jember

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Abstract

Penelitian ini mengajukan sebuah sistem untuk melakukan identifikasi sel Acute Lymphoblastic Leukemia (ALL) pada citra sediaan apus darah berdasarkan ciri morfologi. Agoritma yang digunakan meliputi beberapa langkah: pra-pengolahan, segmentasi citra, perhitungan fitur dan klasifikasi. Algoritma K-means Clustering berdasarkan segmentasi warna digunakan untuk memisahkan citra apus darah menjadi empat daerah: latar belakang, nukleus WBC, sitoplasma WBC dan RBC. Nukleus yang tumpang tindih kemudian dipisahkan dengan mengaplikasikan metode Watershed Transform. Berdasarkan lima fitur morfologi yaitu area, perimeter, diameter, roundness dan compactness, citra apus darah diklasifikasikan menggunakan metode Support Vector Machine. Hasil penelitian ini didapatkan akurasi pengenalan sel ALL dan sel darah putih normal sebesar 95.45%.
Sistem Penegakan Speed Bump Berdasarkan Kecepatan Kendaraan yang Diklasifikasikan Haar Cascade Classifier Muhammad Zulfikri; Erni Yudaningtyas; Rahmadwati Rahmadwati
Jurnal Teknologi dan Sistem Komputer Volume 7, Issue 1, Year 2019 (January 2019)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.315 KB) | DOI: 10.14710/jtsiskom.7.1.2019.12-18

Abstract

Driving at high speed is among the frequent causes of accidents. In this research, a warning system was developed to warn drivers when their speed beyond the safety limit. Haar cascade classifier was proposed for the detection system which comprises Haar features, integral image, AdaBoost learning, and cascade classifier. The system was implemented using Python OpenCV library and evaluated on road traffic video collected in one way traffic. As a result, the proposed method yields 97.92% of car detection accuracy in daylight and MSE of 2.88 in speed measurement.
Design and Analysis of Decision Support Information System to Determine The Priority of Selecting Natural Disaster Barrack Policies With The Fuzzy Simple Additive Weighting Method Muh Wahid Anshori Riza; Sholeh Hadi Pramono; Rahmadwati Rahmadwati
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 3, No 2 (2019): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v3.i2.88

Abstract

The lack of a disaster information system nowadays has made it difficult to find out information in the disaster area. Making information systems in disaster areas is important to solve the problem of uneven distribution of aid provided at each barrack. Because the conditions of each barrack are different, a system is needed to determine the priority for selecting disaster. To be able to determine the recommendations for the selection of disaster barracks, this study uses the Fuzzy Simple Additive Weighting (Fuzzy SAW) method, uses fuzzy method to determine the input basis value to SAW [3]. With the implementation of the Fuzzy SAW method, the results of this study can provide recommendations for Badan Penangguangan Bencan Daerah (BPBD) of Malang to determine the priority of disaster barracks that can take precedence.Keywords: disasters, fuzzy, information systems, priorities, simple additive weighting.
Implementation of Background Subtraction and Fuzzy Logic Control for Green-Timing Optimization on 3-Junction Traffic Light Dharmawan -; Rahmadwati Rahmadwati; Hadi Suyono
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 3, No 1 (2019): April
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v3.i1.61

Abstract

This study presents a green-timing optimization simulation on a 3-lane traffic light to reduce the density of the vehicle queue (density) in each lane. The method used in green-timing optimization is a combination of background subtraction and fuzzy logic control. Background subtraction functions as density extractor and fuzzy logic control as the green-timing controller itself. Green-timing optimization simulations in this study show a decrease in waiting time in each cycle of timing and a decrease in traffic-density of 44% -45% compared to a fixed-time timing system.Keywords: background substraction, fuzzy, green-timing, logic control, traffic light.
Implementation of Deep Learning in Spatial Multiplexing MIMO Communication Mahdin Rohmatillah; Hadi Suyono; Rahmadwati Rahmadwati; Sholeh Hadi Pramono
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 2: November 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i2.pp699-705

Abstract

Research in Multiple Input Multiple Output (MIMO) communication system has been developed rapidly in order to improve the effectiveness of communication among users. However, trade-off phenomenon between performance and computational complexity always become the hugest dilemma suffered by researchers. As an alternative solution, this paper proposes an optimization in 3x3 spatial multiplexing MIMO communication system using end-to-end based learning, specifically, it adapts autoencoder based model with the knowledge of Channel State Information (CSI) in the receiver side, make it fairly compared with the baseline method. The proposed models were evaluated in one of the most common channel impairment which is fast Rayleigh fading with additional Additive White Gaussian Noise (AWGN). By appropriately determining hyperparameters and the help of PReLU (Parametric Rectified Linear Unit), the results show that this autoencoder based MIMO communication system results in very promising results by exceeding the baseline methods (methods widely used in conventional MIMO communication) by reaching BER lower than at SNR 22.5 dB.
Effect of combination of dye carotene and phycocyanin using daucus carota and spirulina sp. on optical sensor performance Rahmadwati Rahmadwati; Luthfiyah Rachmawati; Panca Mudjirahardjo; Eka Maulana
Indonesian Journal of Electrical Engineering and Computer Science Vol 17, No 2: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v17.i2.pp907-913

Abstract

This research designed optical sensors using mercury lamp of 160W. These sensors provided voltage and current output. The design of optical sensors used the organic based material,i.e. dye  carotene and phycocyanin. Fabrication of optical sensor in this research used spin coating deposition method. Based on the results of absorbance test, dye carotene had the largest absorption of light of 2.882 (a.u).  Dye phycocyanin at length had the largest absorption of light of 2.787 (a.u). Combination between dye carotene and phycocyanin, for a 3: 1 (Carotene: Phycocyanin) ratio had a waveform like a dye carotene with a peak of 2.587 (au), whereas for 1: 3 had a waveform like phycocyanin with a peak of 2,279 (au). But, sample 1: 1 ratio had decrement the light absorbance rate with peaks of 1.183 (au). At the voltage testing result, combination of phycocyanin: carotene (1:3) had the best linearity. The response time of dye 3:1 (phycocyanin: carotene), 1:1, 1:3, phycocyanin, and carotene were 6.72 s, 2.469s, 1.171s, 2.66s and 7.01s respectively. 
Optical Sensor Based on Dye Sensitized Solar Cell (DSSC) Rahmadwati Rahmadwati; Sapriesty Nainy Sari; Eka Maulana; Akhmad Sabarudin
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 2: November 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i2.pp685-690

Abstract

An optical sensor is designed to convert a number of light energy in to electrical energy. The sensor hasbeen successfully measured using light illuminance to achieve electric parameters as the sensor output. In this research the optical sensor design was characterized according to the voltage and current output with the stimulus from mercury lamp. The sensor is customized from Dye-Sensitized Solar Cell with photo-electrode and photo-catalysator of Titanium Dioxide and extracted tobacco chlorophyll dye. Spin coating method was conducted to fabricate the thick layer deposition using selected material. Based on the absorbance measurement, it shows that tobacco dye has the characteristics of visible light absorption in the wavelength of 300-000 nm. The result of this research revealed that from 2 variation of optical sensor design square with active area of (2 cm x 2 cm) and (1 cm x 1 cm). Analitycal result shows that the sensor has wide linear characteristic in certain light illuminance both of output current and voltage.
Co-Authors Akhmad Sabarudin Akio Kitagawa Alva Kosasih Angger Abdul Razak Angger Abdul Razak Anggraini, Monika Ayu Puji Anindita, Ruth Astari Anisari Mei Prihatini Aziz Muslim Azizurrahman Rafli Boby Yusuf Habibi Dachlan, Hary Soekotjo Danang Aditya Nugraha Deron Liang Dewi, Ajeng Kusuma Dhaffin Rayhzan Ferdian Dharmawan - Eka Maulana Erni Yudaningtyas Erni Yudhaningtyas Fadilla, Rafa Raihan Faiza Alif Fakhrina Farrel Rafif Ferdian Febriantono, M Aldiki FERDIANA, KHAIRUNISA Gigih Gumilar Golshah Naghdy Habibi, Boby Yusuf Hadi Suyono Huda, Masykur Idhil, Andi Nurul Isri Indriany Ika Kusumaning Putri IMRAN, AZZAM ZAHFRAN Luthfiyah Rachmawati M. Aldiki Febriantono M. Aziz Muslim Mahdin Rohmatillah Masykur Huda Moch. Rusli Mudjirahardjo, Panca Muh Wahid Anshori Riza Muhammad Aswin Muhammad Aziz Muslim Muhammad Dzikrullah Suratin, Muhammad Dzikrullah Muhammad Fauzan Edy Purnomo Muhammad Zulfikri Muhammad Zulfikri Nugraha, Danang Aditya Nurrohman, Muhammad Yogi Onny Setyawati Panca Mudjirahardjo Panca Mudjirahardjo Raden Arief Setyawan Raden Arief Setyawan Rakhmad Romadhoni Riza Hasbi Ash Shiddieqy Robintang Sotardodo Situmorang Rudy Yuwono Ruth Astari Anindita Sanjaya, Mochamad Rofi Sari, Sapriesty Nainy Shaskia Vilardl Ri Cahya Sholeh Hadi P. Sholeh Hadi Pramono Sultoni, Sultoni Suyono, Hadi Tanjo Yui Vita Kusumasari Wijono Wijono Wildan Arif Maulana Yeni Sumantri Yuyu Wahyu Zainul Abidin Zulfa Fahrunnisa