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All Journal International Journal of Electrical and Computer Engineering IAES International Journal of Artificial Intelligence (IJ-AI) Majalah Ilmiah Teknologi Elektro Techno.Com: Jurnal Teknologi Informasi TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Mahasiswa TEUB Jurnal EECCIS e-Jurnal Arus Elektro Indonesia Jurnal Teknologi dan Sistem Komputer Network Engineering Research Operation [NERO] Jurnal Elektronika dan Telekomunikasi Indonesian Journal of Electrical Engineering and Computer Science JAREE (Journal on Advanced Research in Electrical Engineering) Majalah Ilmiah Teknologi Elektro

Rahmadwati, n/a

Brawijaya University

Author-ID : 2714053

Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering

Published : 121 Documents Claim Missing Document

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IMPLEMENTASI SISTEM KENDALI KECEPATAN MOTOR DC MENGGUNAKAN KONTROLER PID PADA SISTEM PENEKANAN SAMPAH PADA ALAT PEMADAT SAMPAH RUMAH TANGGA Rahman, Alif Rasyadan Izzatur; Muslim, Muhammad Aziz; Rahmadwati, n/a
Jurnal Mahasiswa TEUB Vol 9, No 5 (2021)
Publisher : Jurnal Mahasiswa TEUB

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

ABSTRAKSistem pengelolaan limbah padat yang efektif dan efisien sangat diperlukan untuk menjagalingkungan kita tetap bersih. Dalam rangka mengurangi timbunan sampah dapat dilakukan dengan caramemadatkan volume sampah sehingga dapat dengan mudah dikelola oleh penyedia layanan pengumpulan sampah. Dengan menggunakan motor DC sebagai aktuator yang terhubung dengan gear dan rantai untuk menggerakkan batang berulir, batang berulir mengubah gerak rotasi motor menjadi gerakan linear untuk menggerakkan pelat penekan yang berfungsi memadatkan sampah rumah tangga, dibutuhkan kecepatan motor DC yang konstan. Kecepatan akan dibaca oleh sensor rotary encoder yang terpasang di belakangmotor DC. Kecepatan diatur melalui motor driver dengan mengatur nilai PWM (Pulse Widht Modulation). Pengendalian kecepatan motor DC menggunakan kontroler PID dengan metode tuning Hand Tuning. Didapatkan nilai Kp = 0,116, Ki, = 2,245, dan Kd = 0,015 dengan metode hand tuning.Setelah melakukan pengujian didapatkan nilai settling time rata-rata = 0,73 detik , rise time rata-rata =0,325 detik , error steady state kurang dari 1%, dan overshoot kurang dari 0,8 %. Dan didapatkan wakturecovery rata-rata 5,38 detik serta overshoot kurang dari 5 % ketika sistem mengalami gangguan.Kata kunci: Motor DC, Trash Compactor, Hand Tuning, PID.ABSTRACTAn effective and efficient solid waste management system is necessary to keep our environmentclean. In order to reduce waste accumulation, it can be done by compacting the volume of waste so that itcan be easily managed by waste collection service providers. By using a DC motor as an actuator that isconnected to a gear and chain to drive a threaded rod, the threaded rod converts the rotational motion ofthe motor into a linear motion to move the pressure plate which functions to compact household waste, aconstant DC motor speed is required. The speed will be read by a rotary encoder sensor mounted on theback of the DC motor. Speed â€‹â€‹is regulated through the motor driver by setting the PWM (Pulse Width Modulation) value. DC motor speed control uses a PID controller with the Hand Tuning method. Thevalues â€‹â€‹of Kp = 0,116, Ki, = 2,245, and Kd = 0,015 were obtained using the hand tuning method. Afterdoing the test, the average settling time value = 0,73 seconds, the average rise time = 0,325 seconds, thesteady state error is less than 1%, and the overshoot is less than 0.8%. And obtained an average recoverytime of 5.38 seconds and an overshoot of less than 5% when the system is disturbed.Keywords: DC motor, Trash Compactor, Hand Tuning, PID.

Optimized Active Learning for User’s Behavior Modelling based on Non-Intrusive Smartphone Ika Kusumaning Putri; Deron Liang; Sholeh Hadi Pramono; Rahmadwati Rahmadwati
International Journal of Electrical and Computer Engineering (IJECE) Vol 7, No 1: February 2017
Publisher : Institute of Advanced Engineering and Science

In order to protect the data in the smartphone, there is some protection mechanism that has been used. The current authentication uses PIN, password, and biometric-based method. These authentication methods are not sufficient due to convenience and security issue. Non-Intrusive authentication is more comfortable because it just collects user’s behavior to authenticate the user to the smartphone. Several non-intrusive authentication mechanisms were proposed but they do not care about the training sample that has a long data collection time. This paper propose a method to collect data more efficient using Optimized Active Learning. The Support Vector Machine (SVM) used to identify the effect of some small amount of training data. This proposed system has two main functionalities, to reduce the training data using optimized stop rule and maintain the Error Rate using modified model analysis to determine the training data that fit for each user. Finally, after we done the experiment, we conclude that our proposed system is better than Threshold-based Active Learning. The time required to collect the data can reduced to 41% from 17 to 10 minutes with the same Error Rate.

LHCP four patches stack triangular truncated antenna using corporate feed microstrip-line for CP-SAR sensor Muhammad Fauzan Edy Purnomo; Vita Kusumasari; Rudy Yuwono; Rahmadwati Rahmadwati; Rakhmad Romadhoni; Azizurrahman Rafli; Yuyu Wahyu; Akio Kitagawa
International Journal of Electrical and Computer Engineering (IJECE) Vol 11, No 5: October 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v11i5.pp4125-4134

In this paper, we acquire the configuration of the left-hand circular polarization (LHCP) array four patches stack triangular truncated microstrip antenna. This construction use the basic corporate feed microstrip-line with modified lossless T-junction power divider on radiating patch for circularly polarized-synthetic aperture radar (CP-SAR) sensor embedded on unmanned aerial vehicle (UAV) with compact, small, and simple configuration. The design of circular polarization (CP) is realized by truncating the whole three tips and adjusting the parameters of antenna at the target frequency, f = 5.2 GHz. The results of characteristic performance and S-parameter for the LHCP array four patches stack antenna at the target frequency show successively about 9.74 dBic of gain, 2.89 dB of axial ratio (Ar), and -10.91 dB of S-parameter. Moreover, the impedance bandwidth and the 3 dB-Ar bandwidth of this antenna are around 410 MHz (7.89%) and 100 MHz (1.92%), respectively.

Classification of multiclass imbalanced data using cost-sensitive decision tree C5.0 M. Aldiki Febriantono; Sholeh Hadi Pramono; Rahmadwati Rahmadwati; Golshah Naghdy
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 9, No 1: March 2020
Publisher : Institute of Advanced Engineering and Science

The multiclass imbalanced data problems in data mining were an interesting to study currently. The problems had an influence on the classification process in machine learning processes. Some cases showed that minority class in the dataset had an important information value compared to the majority class. When minority class was misclassification, it would affect the accuracy value and classifier performance. In this research, cost sensitive decision tree C5.0 was used to solve multiclass imbalanced data problems. The first stage, making the decision tree model uses the C5.0 algorithm then the cost sensitive learning uses the metacost method to obtain the minimum cost model. The results of testing the C5.0 algorithm had better performance than C4.5 and ID3 algorithms. The percentage of algorithm performance from C5.0, C4.5 and ID3 were 40.91%, 40, 24% and 19.23%.

RETRACTED: Sistem Penegakan Speed Bump Berdasarkan Kecepatan Kendaraan yang Diklasifikasikan Haar Cascade Classifier Muhammad Zulfikri; Erni Yudhaningtyas; Rahmadwati Rahmadwati
Techno.Com Vol 18, No 2 (2019): Mei 2019
Publisher : LPPM Universitas Dian Nuswantoro

Artikel dengan judulÂ Sistem Penegakan Speed Bump Berdasarkan Kecepatan Kendaraan yang Diklasifikasikan Haar Cascade Classifier telah dilakukan pencabutan dari jurnal Techno.COM Vol. 18 No. 2 Mei 2019, pada tautan daringÂ http://publikasi.dinus.ac.id/index.php/technoc/article/view/2074. Hal ini dikarenakan artikel sudah terbit pada Jurnal Teknologi dan Sistem Komputer Vol 7 No 1 Januari 2019. pada tautan daringÂ https://jtsiskom.undip.ac.id/index.php/jtsiskom/article/view/13158Isi artikel yang dibuat adalah asli dibuat oleh yang bersangkutan, namun dikirim ke beberapa jurnal yang berbeda dengan waktu yang sama, sehingga waktu pemrosesan dan penerimaan artikel hampir sama, namun artikel telah dipublikasikan terlebih dahulu di Jurnal Teknologi dan Sistem Komputer Vol 7 No 1 Januari 2019 pada tautan daringÂ https://jtsiskom.undip.ac.id/index.php/jtsiskom/article/view/13158.Â Maka bersama ini Jurnal Techno.COM mencabut artikel ini dari edisi Vol. 18 No. 2 Mei 2019. Artikel bersangkutan dapat diakses di URL yang telah disebutkan.Â

Optical sensor based on dye-sensitized solar cell with tobacco chlorophyll Eka Maulana; Rahmadwati Rahmadwati; Sapriesty Nainy Sari; Akhmad Sabarudin
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 4: August 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i4.12613

Modified optical sensor based on dye-sensittized solar cell has been successfully fabricated to measure the number of light energy. The electric parameters as the sensor output were achieved from the light illuminance as the sensor input. The measured parameter from optical sensor according to the voltage and current output have been characterized to obtain the sensor performance. In this research, the modified sensor is customized from dye-sensitized solar cell with extracted tobacco chlorophyll dye as the photo-catalysator, photo-electrode of titanium dioxide and Iodine solution for redox reaction. The thick layer deposition with selected material is conducted using spin coating method of 1000 rpm. Based on the absorbance measurement, it shows that tobacco dye has the characteristics of visible light absorption in the wavelength of visible light spectra. The analytical result shows that the sensor has the wide linear characteristic in certain light illuminance and the increasing light intensity produces higher electrical parameter output both current and voltage. This sensor has potential prospect to be used as a light sensor and to be competitive fabrication cost.

Low Complexity Multi-User MIMO Detection for Uplink SCMA System Using Expectation Propagation Algorithm Alva Kosasih; Onny Setyawati; Rahmadwati Rahmadwati
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 16, No 1: February 2018
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v16i1.7365

Sparse code multiple access (SCMA), which combines the advantages of low density signature (LDS) and code-division multiple access (CDMA), is regarded as one of the promising modulation technique candidate for the next generation of wireless systems. Conventionally, the message passing algorithm (MPA) is used for data detector at the receiver side. However, the MPA-SCMA cannot be implemented in the next generation wireless systems, because of its unacceptable complexity cost. Specifically, the complexity of MPA-SCMA grows exponentially with the number of antennas. Considering the use of high dimensional systems in the next generation of wireless systems, such as massive multi-user MIMO systems, the conventional MPA-SCMA is prohibitive. In this paper, we propose a low complexity detector algorithm named the expectation propagation algorithm (EPA) for SCMA. Mainly, the EPA-SCMA solves the complexity problem of MPA-SCMA and enables the implementation of SCMA in massive MU-MIMO systems. For instance, the EPA-SCMA also enables the implemantation of SCMA in the next generation wireless systems. We further show that the EPA can achieve the optimal detection performance as the numbers of transmit and receive antennas grow. We also demonstrate that a rotation design in SCMA codebook is unnecessary, which is quite rather different from the general assumption

PENGENALAN WAJAH SECARA REAL TIME MENGGUNAKAN METODE CAMSHIFT, LAPALCIAN of GAUSSIAN DAN DISCRETE COSINE TRANSFORM TWO DIMENSIONAL (LoGDCT2D) Sultoni Sultoni; Hary Soekotjo Dachlan; Panca Mudjirahardjo; Rahmadwati Rahmadwati
Network Engineering Research Operation Vol 2, No 3 (2016): NERO
Publisher : Universitas Trunojoyo Madura

IMPLEMENTASI METODE ANFIS-MINKOWSKI UNTUK IDENTIFIKASI BIOMETRIK IRIS MATA MENGGUNAKAN IMAGE PROCESSING Ruth Astari Anindita; Onny Setyawati; Rahmadwati Rahmadwati
Network Engineering Research Operation Vol 3, No 1 (2017): NERO
Publisher : Universitas Trunojoyo Madura

SIMULASI PENGENDALIAN SUHU ALAT PEMATANG KEJU MENGGUNAKAN KONTROL LOGIKA FUZZY BERBASIS SIMULINK Muhammad Dieny Amrullah; Goegoes Dwi Nusantoro; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol 4, No 7 (2016)
Publisher : Jurnal Mahasiswa TEUB

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Hasil produksi keju dipengaruhi beberapa faktor, seperti proses pembuatan dan proses selama pematangan. Proses pembuatan dan proses pematangan yang tidak tepat dapat mengakibatkan rasa, aroma, dan tekstur yang buruk. Berbagai jenis keju dengan tahapan terperinci dalam proses pembuatannya juga sangat bervariasi. Ada beberapa proses sebelum susu berubah menjadi keju. Pematangan adalah salah satunya. Pematangan merupakan proses akhir dari rangkaian proses pembuatan keju. Pematangan (ripening) adalah proses yang mengubah dadih-dadih (keju mentah) segar menjadi keju yang penuh dengan rasa. Pematangan disebabkan oleh bakteri atau jamur tertentu yang digunakan pada proses produksi dan karakter akhir dari suatu keju banyak ditentukan dari proses pematangannya. Selama proses pematangan, keju dijaga agar berada pada temperatur dan tingkat kelembaban tertentu hingga keju siap dimakan. Waktu pematangan ini bervariasi tergantung dari jenis kejunya. Menurut Scott (2006), bahwa keju gouda bisa disimpan untuk minggu pertama di ruang pematangan pada suhu 11-13oC dengan tingkat kelembaban sekitar 75% - 85% (www.Food-Info.net). Jika suhu dan kelembaban ruangan tidak sesuai maka perkembangan bakteri yang membentuk keju akan melambat. Penelitian yang sudah dilakukan sebelumnya berjudul “Pengendalian Suhu dan Kelembaban Proses Pematangan Keju Menggunakan Kontroler PID Berbasis PLC” yang disusun oleh Gosi Desgraha pada tahun 2015 dan “Alat Pengontrol Suhu Pada Proses Pematang Keju Menggunakan Arduino berbasis Logika Fuzzy” yang disusun oleh Valdy Ramadhan pada tahun 2016. Penelitian sebelumnya dilakukan menggunakan kontrol ON-OFF untuk mengontrol kelembapan dan kontrol PID untuk mengontrol suhu ruang pada proses pematangan serta melakukan perbandingan antara control PID dengan logika fuzzy untuk mencari metode yang lebih baik. Pada tugas akhir ini dibahas perancangan fungsi keanggotaan kontrol logika fuzzy untuk mensimulasikan pengendalian suhu alat pematang keju. Sistem kontrol kestabilan pengendalian suhu disimulasikan menggunakan software Matlab dengan simulink. Hasil yang diperoleh dari Tugas Akhir ini diharapkan menjadi referensi perencanaan desain kontrol dan pengembangan metode kontrol yang tepat pada sistem pengendalian suhu di masa mendatang. Kata kunci- Fuzzy, suhu, simulasi, keju

Co-Authors Achmad Ernanda T. P. Aditya Desta Pranata Adrian Alkahfi Fauzi Afdhol Goyanda Hidayatullah Afriandika Brillian Agung Pambudi Ahmad Farid Nurrohman S. Aiman Muhamad Basymeleh Ainur Rosyidatul Husna Ajeng Atha Ardella Cahyanti Akhmad Sabarudin Akio Kitagawa Al Jihad Andi Saungnaga Alva Kosasih Alvi Kusuma Wijaya Andik Setiawan Andriyan Rizky Sigit Anggara Truna Negara Angger Abdul Razak Anisari Mei Prihatini Ardyanto Dwi Kurniawan Arga Rifky Nugraha Aulia Muhammad Aulia Wiendyka Yudha Aziz Muslim Azizurrahman Rafli Bambang Siswojo Bambang Siswojo Bambang Siswojo Boby Yusuf Habibi Budi Prasetyo Dean Passaddhi Deron Liang Dharmawan - Diannata Rahman Y. Didit Afrian Nugraha Dyah Ayu Anggreini T Dzikrullah Akbar Eka Bayu Prinandika Eka Maulana Eka Maulana Ergan Pratu Handistya Erni Yudaningtyas Erni Yudaningtyas Erni Yudhaningtyas Faisal Maulana Ibrahim Faishal Farras Wasito Faiza Alif Fakhrina Falah Heksananda Faridzky Adhi Baskara Febi Syahputra Frans W. P. Napitupulu Gabriel Andriano Bramantyo Garneta Rizke Ayu Cempaka Geraldio Ramadhan Safitri Gigih Gumilar Gigih Mandegani Godam Ardianto Goegoes Dwi Nusantoro Goegoes Dwi Nusantoro Golshah Naghdy Gosi Desgraha Gristita Tresna Murti Gurnita Fajar Gemilang Hadi Suyono Hary Soekotjo Dachlan Heri Susanto I Putu Manu Satyam Idam Almualif Ika Kusumaning Putri Indyanto Gadang Alfaruki Jefry Sugihatmoko Jesse Sebastian Jodie Revel Palasroha Joko Prasetyo Kevin Putra Pratama K. R. Kukuh Nur Aji Kukuh Priambodo Lovinardo Devharo Luthfan Prayoga Luthfiyah Rachmawati M. Aldiki Febriantono M. Aziz Muslim M. Hadafi Maulana I. M. Kholid Mawardi M. Yufrizal Afif Mahaestra Fachrurrozi Mahdin Rohmatillah Masykur Huda Maulana, Eka Moch. Rusli Mohammad Bimo Digdoyo Mohammad Zidnil Maarif A. Mudjirahardjo, Panca Muh Wahid Anshori Riza Muh. Ghiffari Caesa Ramadahan Muhamad Faishol Arif Muhamad Ibnu Fajar Muhamamd Dimas Ali Cahya Muhammad Aziz Muslim Muhammad Aziz Muslim Muhammad Dieny Amrullah Muhammad Dzikrullah Suratin, Muhammad Dzikrullah Muhammad Fahmi Illmi Muhammad Fauzan Edy Purnomo Muhammad Izaaz Rozan Muhammad Nurhilal Hamdi Muhammad Oktafian Ulal Ma'arif Muhammad Rizki Rafido Muhammad Sholahudin Nur Anwar Muhammad Wildan Nashrullah Muhammad Zulfikri Muhammad Zulfikri n/a Abdullah n/a Purwanto n/a Retnowati Nanang Sulistiyanto Nandito Ardaffa Putra Nugroho Dwi Aprillianto Nuni Hutami Stanto Onny Setyawati Panca Mudjirahardjo Pandu Arya Zulkarnain Ponco Siwindarto Prihadya Surya Ramdhani R. Afin Priswiyandi Radek Purnomo Raden Arief Setyawan Rafa Raihan Fadilla Rahman, Alif Rasyadan Izzatur Rakhmad Romadhoni Rama Hasani Rayyan Ghaus Rahmat Rif'an, Mochammad Rifan Pradestama Giantara Rifqi Hilman Wangsawinangun Rizki Zein Achmadi Rizky Adi Sanjaya Robintang Sotardodo Situmorang Rudy Yuwono Rusli, Mochammad Ruth Astari Anindita Safuddin Zuhri Sari, Sapriesty Nainy Shaskia Vilardl Ri Cahya Shaufi Firdausi Luthfi Sholeh Hadi P. Sholeh Hadi Pramono Subairi Subairi Sultoni Sultoni Suyono, Hadi Topan Firdaus Tri Agung Prasetio Tri Wahyu Oktaviana Putri Valen Kristian Eriski Vita Kusumasari Waru Djuriatno Wia Siisgo Alnakulla Wijono Wijono Wirangga Luvianca Yudo Jati Wicaksono Yuyu Wahyu Zulfa Fahrunnisa Zzyo Chandra

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