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

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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.
RANCANG BANGUN SISTEM KONTROL PEMOTONG PLAT BESI BERBASIS ARDUINO MEGA 2560 Jesse Sebastian; Bambang Siswojo; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol. 10 No. 4 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

The steel cutting process in the industry is carried out to be consistent as desired. Automation design using Plasma Cutting is one of the mechanisms used by the industry in connecting rods in steel building construction and machine construction, so that the selector is more efficient and reduces the error rate in the selection process. The Steel Cutting design is driven by 2 stepper motors on X axis and 1 stepper motor on Y axis, the welding speed can be adjusted and starts with a straight speed of up to 40cm. In this study, using a lead screw and a ball screw to change the translational motion of a stepper motor with a precision level of 5mm or the equivalent of 200 steps per rotation so that 1 step is 1.8˚, the TB6600 module and Arduino Mega 2560 as a controller are tested on a welding table. measuring 75 cm long x 70 cm wide x 40 cm high and the system design uses a Time Schedule Control type sequential method. Based on the results of experiments and the creation of a system to regulate translational motion, the average error is 1.02%. With a small error of 0.75%, it can be concluded that the tools in the system can be used. Keywords: Plasma Cutting,
SISTEM PENGATURAN SALINITAS PADA AKUARIUM IKAN KOI MENGGUNAKAN MOTOR SERVO BERBASIS LOGIKA FUZZY METODE SUGENO Dean Passaddhi; n/a Rahmadwati; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 4 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Koi fish (Cyprinus carpio), or commonly known as nishikigoi, is one of the ornamental fish that is in great demand by the public today, because koi fish has a very beautiful uniqueness, both in terms of shape, pattern, and color on the body of the koi fish, that it has a high selling price. Maintaining koi fish is a small-scale cultivation activity, which is currently popular with the public during this pandemic, but maintaining a koi fish is complicated because there are many factors that need to be considered so that the health of koi fish is maintained, especially where koi fish live in the form of water. Basically, fish will live and breed in an aquarium properly if the environmental conditions provided in accordance with their living conditions can be met or close to their natural habitat, one of the water parameters that needs to be considered is salinity. Koi fish are sensitive to salt concentrations in their environment and have developed systems that maintain a constant balance of salt ions in their bloodstream through the movement of salts and across gill membranes. Koi fish have a minimum salinity level of 2 ppt and a maxi
PENGATURAN SUHU DAN KELEMBABAN PADA MINIATUR KUMBUNG INKUBASI JAMUR TIRAM DENGAN METODE KONTROL LOGIKA FUZZY (KLF) TERHUBUNG SISTEM INTERNET OF THINGS Rifqi Hilman Wangsawinangun; Erni Yudaningtyas; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Penelitian ini bertujuan untuk mengatur suhu dan kelembaban lingkungan kumbung inkubasi jamur tiram (Pleourotu var florida) desain peneliti dengan mengatur suhu dan kelembaban menggunakan metode kontrol logika Fuzzy (KLF) dengan aktuator suhu menggunakan lampu pijar 40W serta kipas dc 15V dan aktuator kelembaban menggunakan Humidifier serta kipas dc 15V dan terhubung dengan internet menggunakan ESP8266-01. Untuk parameter yang dikontrol pada penelitian ini yaitu suhu 25°C dan kelembaban 60% RH menggunakan metode interferensi Mamdani sistem dapat mempertahankan pada parameter yang diinginkan dan memonitor dengan menggunakan aplikasi Blynk. Kata Kunci--Blynk, Internet of Things, Kelembaban, Kontrol logika Fuzzy, Kumbung jamur tiram, Suhu.
SISTEM PENGONTROLAN SUHU DAN KELEMBABAN PADA ALAT PENGONTROL PENETASAN TELUR AYAM MENGGUNAKAN METODE KONTROL ON-OFF Nandito Ardaffa Putra; n/a Rahmadwati; Goegoes Dwi Nusantoro
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

This study describe about design an egg incubator with temperature and humidity control. This study used the on-off control method to design an egg incubator with temperature and humidity control. The output of this control is to determine whether the lights and humidifier will turn off or on. This research has resistance to design, characterization, and testing. The setpoint used was temperature 37℃ on day 1 to and 18 and 36℃ after day 18. Then, the humidity was 60%RH on days 1 to 18 and 75%RH after day 18. Based on the test, it was found that the temperature control system was made using an on-off controller on the 1st to 18th day having ?? = 1910s, ?? = 1710s, ??? = 0,353% , after the 18th day it had ?? = 160s, ?? = 160s, ??? = 0,351%. The humidity control system was made using an on-off controller on days 1 to 18 having ?? = 1670s, ?? = 1870s, ??? = 0,562%. a
RANCANGAN BANGUN SISTEM PEMANTAUAN pH AIR Rizky Adi Sanjaya; Raden Arief Setyawan; n/a Rahmadwati
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Water quality is known by conducting certain tests on water quality standards. The purpose of this study is to determine the physical characteristics of water quality and to produce a system that can monitor the pH of the water in order to keep the water in an ideal state. The method used is a prototype method by making a water quality detector using a pH sensor using Arduino Uno with the process of collecting needs, building a system, coding the system, testing the system, and evaluating the system. Arduino Uno as a control center will send sensor data that has been processed to the Wemos D1 mini connected to wifi. Then it will be sent to the Blynk server so that it can be displayed on the user’s smartphone and convey the resulting data notification. pH measurement obtained an averange value of 96.41% accuracy. The results of testing different water systems have different pH. Test results notification delay time average delay time pH 4.5 seconds. The existence of blackbox testing – testing has a level of suitability of the application to the user by 100%. The language of the notification can be set according to the needs, so as to adjust the area where the device will be installe
SISTEM PENGATURAN DISSOLVE OKSIGEN MENGGUNAKAN AERATOR PADA IKAN KOI DENGAN METODE FUZZY Faisal Maulana Ibrahim; n/a Rahmadwati; Eka Maulana
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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Abstract

Aerator is a machine that produces air bubbles that functions to move water in the pond so that the water is rich in dissolved oxygen which is needed by all freshwater fish. The working principle of this tool is to make the surface of the water as much as possible in contact with the air. The goal is that the oxygen content in the water is sufficient and gases and impurities that usually cause rot can be expelled from the water. These air bubbles are very important for fish because these bubbles act as oxygen for fish. This oxygen level is commonly called DO (dissolved oxygen). Many ornamental fish entrepreneurs, especially koi, underestimate the level of dissolved oxygen in water (the use of aerators) both in terms of power consumption, which is not regulated or does not provide a tool in the form of an aerator. For this reason, this research makes aerator speed settings according to the needs of the fish and also saves costs because it does not have to be turned on every time.Keywords: Aerator, koi fish farming, DO, dissolved oxygen in water
IDENTIFIKASI SISTEM PLANT SUHU DAN KELEMBABAN PADA ALAT PENETAS TELUR AYAM DENGAN METODE RECURSIVE LEAST SQUARE Rayyan Ghaus Rahmat; n/a Rahmadwati; Goegoes Dwi Nusantoro
Jurnal Mahasiswa TEUB Vol. 10 No. 5 (2022)
Publisher : Jurnal Mahasiswa TEUB

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The identification method can be done by observing a physical system that will provide input and output signals. The input and output signals generated by the system will be calculated with the identification method's algorithm to produce filter parameters that can represent the system. The algorithm used in this thesis is Recursive Least Square (RLS). The components contained in the temperature and humidity plant system, namely the Digital Temperature and Humidity sensor (DHT22), a 25 Watt incandescent lamp, and a 24 Volt mist maker. The structure of the model used in this thesis is the Auto Regressive Moving Average Exogenous (ARMAX). The order used in this thesis is second-order according to the residual analysis, indicating that the second-order graph is between the dotted line and close to the zero axis point. The parameter results obtained at the plant temperature are a1 = -1.331; a2 = - 0.3402; b1 = 0.1775; b2 = –0,1682; c1 = –0.5658; c2 = –0,2031. In plant humidity is a1 = -0.9459; a2 = -0.043202; b1 = 0.008937; b2 = 0.002168; c1 = 0.05638; c2 = 0.03856. Akaike's FPE validation results on the temperature and humidity plant model are 0.009251 and 0.1663, respectively. The accuracy test results with the setpoint signal at the plant temperature and humidity were FIT = 95.43%, respectively; FIT = 93.86%.Keywords: Temperature and Humidity Plant, System Identification, ARMAX, RLS
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