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All Journal Jurnal SPEKTRUM TELKOMNIKA (Telecommunication Computing Electronics and Control) Majalah Ilmiah Teknologi Elektro

I Putu Elba Duta Nugraha

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Author-ID : 2932797

Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering

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Miniaturized Minkowski-Island Fractal Microstrip Antenna Fed by Proximity Coupling for Wireless Fidelity Application I Putu Elba Duta Nugraha; Indra Surjati; Syah Alam
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 15, No 3: September 2017
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v15i3.6826

This paper proposed a new design of Minkowski Island microstrip antenna fed by proximity coupling with partial ground plane. The design was consisted of two layers of substrate, on the top substrate was the antenna patch and on the bottom substrate was the proximity feed line and the partial ground. At the first stage, the normal square patch antenna was mainly designed. Then, the Minkowski patch antenna was designed using 1st iteration technique and 2nd iteration technique. The Minkowski fractal shape slot was embedded in the center of the patch to form a Minkowski Island patch antenna. Using the Minkowski Island fractal technique, the dimension of the patch can be reduced up to 58.7%. The proximity feed line in this design was used to increase the impedance bandwidth, and from the measurement the impedance bandwidth of the proposed antenna was 240 MHz with return loss of -24.54 dB and VSWR of 1.126.

PERANCANGAN SISTEM MONITORING DAN KONTROL KUALITAS AIR SERTA PEMBERIAN PAKAN OTOMATIS PADA BUDIDAYA LELE BIOFLOK BERBASIS INTERNET OF THINGS Gde Dendy Denhero; I Putu Elba Duta Nugraha; Lie Jasa
Jurnal SPEKTRUM Vol 8 No 4 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Cultivation with a biofloc system has several advantages and disadvantages. Biofloccatfish cultivation technology is a technique to balance carbon and nitrogen levels in water toimprove pond water quality. However, cultivators must make observations in the cultivationpond water more often and carefully in order to prevent the increase in nitrogen levels. So,referring to this, a monitoring and control system for water quality and automatic feeding onbiofloc catfish cultivation was designed. The research was conducted by applying theexperimental method, in which the system is divided into three subsystems, namely waterquality monitoring, automatic water replacement, and automatic feeding. The results obtainedfrom conducting this research are in the form of tool trial data which will then be compared withdata from the program that has been made, as well as performance data from the automaticwater replacement subsystem and automatic feeding subsystem which were carried out for 5consecutive days. The conclusion of this research is that the design of a water qualitymonitoring and control system and automatic feeding on biofloc catfish cultivation based on theInternet of Things has been successfully made. In the automatic water replacement subsystem,the average relative error is 2.75%. In the automatic feeding subsystem, the average differencein feeding time is 14.5 seconds and the average relative error is 3.3%.

RANCANG BANGUN MODUL PRAKTIKUM SISTEM EMBEDDED BERBASIS RASPBERRY PI (PENGONTROLAN DASAR LED, LED DOT-MATRIX, DAN SEVEN SEGMENT DISPLAY) Muhammad Abdul Hadi; Pratolo Rahardjo; I Putu Elba Duta Nugraha
Jurnal SPEKTRUM Vol 8 No 2 (2021): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Embedded system is microprocessor-based systems that are used to perform certainfunctions. Embedded systems learning is very much needed, especially for students ofElectrical Engineering, Faculty of Engineering, Udayana University. This is evidenced by theexistence of a new course, namely the Embedded + Lab System. To support the convenienceof practicum in the laboratory, in this study, an Embedded+Lab System practical guide will bedesigned and built by utilizing the Single Board Microcomputer Raspberry Pi. It is hoped thatthis Embedded+Lab System practical guide will be useful for Electrical Engineering students,Faculty of Engineering, Udayana University. This research carried out several basic designsthat will be used in the Embedded System module 1 practical experiment, namely the design ofa Light Emitting Diode (LED) control, LED DOT-Matrix, and seven segment display. The designof each control system will generally be divided into two parts, namely hardware design andsoftware design. The results of this study are a box 1 system embedded practical module andpractical guides, as well as the design of each control system, all of which work well.

SISTEM MONITOR BUDI DAYA SARANG BURUNG WALET BERBASIS ESP32-CAM DILENGKAPI APLIKASI TELEGRAM Dani Maulana; I Gusti Agung Putu Raka Agung; I Putu Elba Duta Nugraha
Jurnal SPEKTRUM Vol 9 No 1 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Swiftlet nest farming is one of the businesses found in Indonesia due to its bigeconomic value. Nest quality at the time when harvest is able to impact the selling price ofswiftlet nest. Farmers usually monitor the swiftlet nest by checking the nest directly in thebuilding, this matters because the swiftlet is shocked. Monitoring is needed for checking thephysical condition of the swiftlet nest. This research will make a prototype hopefully useful toswiftlet nest farmers as a reference to increase nest quality with high economic value. Theresearch has been done on software and hardware design by ESP32-CAM and Arduino IDEsoftware for making the source code. The result from research of a monitoring system onswiftlet nest farming based ESP32-CAM equipped with telegram is able to send commandsmenu to telegram, capturing photo of swiftlet nest, turning on flash and turning off flash onESP32-CAM. The research has been realized successfully as design.

RANCANG BANGUN CONTROLLER BLDC BERBASIS MIKROKONTROLER STM32 BLUE PILL PADA KENDARAAN LISTRIK URBAN AGNIJAYA WEIMANA Mas Nyoman Ngadeg A. C.; I Nyoman Satya Kumara; I Putu Elba Duta Nugraha
Jurnal SPEKTRUM Vol 9 No 3 (2022): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The increase in the consumption of fuel oil causes the depletion of fossil fuel reserves. One alternative energy solution that can be utilized is electrical energy. One of the efforts to overcome the energy crisis can be realized in a creativity in the energy efficient car contest (KMHE). The Weimana Team of Udayana University participated in the urban concept category of electric motor drive under the name Agnijaya Vehicle. One important aspect in order to be able to compete and win the competition is the Motor Controller. In this paper, the results of the research are presented on a design of a Brushless DC Motor Controller based on the STM32 Blue Pill microcontroller and used to rotate the BLDC motor on the Agnijaya Weimana Urban Electric Vehicle. The specifications of the BLDC controller design are made to have a power dissipation inverter with a power of 1980 Watt connected to an 800 Watt sensored BLDC motor. The STM32 Blue Pill microcontroller-based Brushless DC Motor Controller has been successfully designed and manufactured and produces a sinusoidal output waveform containing switching noise when connected to a no-load BLDC motor. The performance to drive Agnijaya Wimana's Urban Electric Vehicle is capable of implementing a PWM duty cycle of up to 100% with an average current achievement of 24,775 Ampere, an average voltage drop of up to 48,485 VDC, an average power rating of up to 1200,5 Watt and a BLDC motor speed up to 419,5 RPM.

Rancang Bangun Modul Praktikum Programmable Logic Controller Berbasis Outseal PLC Sekar Langit; Pratolo Rahardjo; I Putu Elba Duta Nugraha
Jurnal Teknologi Elektro Vol 22 No 2 (2023): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i02.P18

In this research, the design of PLC trainer tools and its accessories was carried out to support the making of practicum modules for Programmable Logic Controller + Lab courses by utilizing the Outseal PLC Mega V3 Standard PP board. There are three experimental designs for the practicum module of the Programmable Logic Controller + Lab course, such as running light, water level control, and application of oil to the machine. In general, the design of this practicum module is divided into 3 stages, including system design, hardware design, and software design. Keyword – PLC Trainer; Practicum; Outseal PLC Mega V3 Standard

Rancang Bangun Trainer Modul Praktikum Programmable Logic Controller Berbasis Outseal PLC Mega V.3 Standar PP Susi Susanti Gea; Pratolo Rahardjo; I Putu Elba Duta Nugraha
Jurnal Teknologi Elektro Vol 22 No 2 (2023): (Juli - Desember) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2023.v22i02.P20

The aim of this research is to design and build a learning trainer using the Outseal Mega V.3 Standard PP PLC board to support the practical in the Programmable Logic Controller + Lab course. The method used in this research is divided into three stages, such as including system design, hardware design, and software design. Testing the practical module of Programmable Logic Controller + Lab consists of three experiments, such as basic operation of Outseal PLC, logic gates, and bell quiz. Based on the result, it can be concluded that the 3 test experiments can be declared successful because the standard Outseal Mega V.3 PLC can be controlled to receive, send, and store data.

Co-Authors Dani Maulana Gde Dendy Denhero I Gst Agung Putu Raka Agung I N Satya Kumara Indra Surjati Lie Jasa Mas Nyoman Ngadeg A. C. Muhammad Abdul Hadi Pratolo Rahardjo Sekar Langit Susi Susanti Gea Syah Alam

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