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All Journal Buletin Udayana Mengabdi Jurnal SPEKTRUM Bumi Lestari PROSIDING CSGTEIS 2013
I Nyoman Budiastra
Jurusan Teknik Elektro Fakultas Teknik Universitas Udayana
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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RANCANG BANGUN SISTEM MONITORING NILAI pH DAN KADAR KEKERUHAN AIR PADA KOLAM TERNAK KODOK LEMBU BERBASIS IoT Ketut Dharma Yasa; I Gusti Ngurah Janardana; I Nyoman Budiastra
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.703 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i02.p5

Abstract

Frog thigh meat is one of the potential non-oil and gas export commodities. In 2011-2012 thevalue of frog thigh meat exports decreased from 4.152 tons to 2.694 tons. The scarcity of toadsavailable is due to massive hunting and the spread of red leg syndrome. Red leg syndrome is causeddue to lack of monitoring of the condition of the bull frog pond. A harassment solution is needed byutilizing the Internet-based technology of Things as an effort to create an environment, especially theright water content of the bull frog, so as to reduce the number of bull frogs affected by the disease.This tool is able to monitor pH values and water turbidity levels in aquaculture ponds through theThingspeaks platform. The test was carried out in one of the Beetle Fodder Animal HusbandryGroups located in Buduk Village, Mengwi District, Badung Regency. It was found that the pH value inthe pond was 6.5-8 and the turbidity level was 3,8-9 NTU. Based on these results, aquaculture pondsare in accordance with water standards for the life of a bull toad with a pH value of 6.5-8.5 andturbidity levels of 1.2-11.6 NTU
SISTEM PESAWAT TANPA AWAK MENGGUNAKAN KAMERA THERMAL UNTUK MEMBANTU PENCARIAN KORBAN BENCANA ALAM I Gede Feryanda Frasiska; Ir. I Nyoman Budiastra, MKes., MT; Pratolo Rahardjo, S.T.,M.T.
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.547 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i04.p13

Abstract

In Indonesia, the weather is influenced by seasons, namely the dry season and the rainyseason. Apart from weather, natural disasters can also occur due to the earth's tectonicpatterns, either in the form of tsunamis or earthquakes. Every natural disaster will have adetrimental impact on society both economically and socially. The impact of a disaster like anearthquake is the collapse of buildings. Collapsed buildings due to earthquakes can leave largenumbers of people dead or buried in the rubble. The evacuation process of post-disaster victimsmust be carried out immediately to reduce the risks posed by the disaster, such as the numberof casualties caused by delays in the evacuation process. Based on these problems,researchers are motivated to create a technological innovation that can help the SAR team iinthe processs of detecting victims from debris through the air by detecting the victims bodytemperature, the number of victims and showing the coordinates of the victim's position.disaster victims. The tool is called DROPBA, which is an Unmanned Aircraft System or UAVthat uses thermal cameras to help search for victims of natural disasters. The SAR team at thepost will control DROPBA or Unmanned Aircraft to detect disaster victims who are in the wreck,and inform the SAR team information wirelessly in the form of a path to the position of thedisaster victim. The design results are in the form of a 3-dimensional model image from the DROBA tool and the components and camera systems used are a thermal camera connectedto the Raspberi pi system and image processing using Open CV.
Analisis Ketidakseimbangan Beban Instalasi Listrik Di Fakultas Teknik Universitas Udayana Kosmas Damianus Tambi; I N. Setiawan; I N. Budiastra
Jurnal SPEKTRUM Vol 4 No 1 (2017): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (308.334 KB) | DOI: 10.24843/SPEKTRUM.2017.v04.i01.p04

Abstract

Beban tidak seimbang pada instalasi listrik selalu terjadi dan penyebab beban tidak seimbang dipengaruhi oleh banyak factor diantaranya pembagian beban antara fasa (fasa R,fasa S,dan fasa T) yang tidak seimbang. Akibat pembagian beban yang tidak seimbang pada masing-masing fasa tersebut mengalir arus di netral pada fasa N. Akibat arus yang mengalir di fasa netral ini menyebabkan terjadinya losses (rugi-rugi). Penelitian ini dilakukan dengan mengitung rugi-rugi daya beban seimbang dan beban tidak seimbang pada waktu malam hari di kampus Fakultas Teknik Universitas Udayana Jalan PB.Sudirman Denpasar. Berdasarkan hasil perhitungan adanya beban tidak seimbangan beban antara fasa pada MDP1 dan MDP2 telah menyebabkan terjadinya rugi-rugi daya. Besar rugi-rugi daya beban seimbang pada MDP1 sebesar 0,042 kW, dan beban tidak seimbang sebesar 0,055 kW. Sedangkan rugi-rugi untuk beban seimbang MDP2 sebesar 0,28 kW, dan beban tidak seimbang MDP2 sebesar 0,35 kW. Jadi semakin besar beban tidak seimbang yang mengalir beban pada suatu instalasi listrik, maka arus yang mengalir pada fasa netral juga besar, dan losses akibat arus netral yang mengalir ke tanah semakin besar pula.
PERANCANGAN SISTEM PEMANAS AIR MENGGUNAKAN SISTEM KENDALI PID I.W. Parmadi Putra; I. W. Arta Wijaya; I.N. Budiastra
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.707 KB) | DOI: 10.24843/SPEKTRUM.2020.v07.i01.p17

Abstract

As the technology advances in control system grow rapidly, especially those involved with water temperature, there is anincreased demand for a control system that is able to provide precisely stable temperature value. The commonly used systemsnowadays are still using the ON/OFF control system for it is relatively affordable and simple, but unfortunately numerouserrors are still found and it is not yet able to provide precise data. Therefore, a PID control system was developed to addressthis issue. In this study, Arduino UNO temperature control was used as data acquisition system, and LM35 temperature sensorwas used to detect the temperature recognized by signal conditioning. From the signal conditioning, the driver will then controlthe heater in order to obtain a precise temperature. This PID system utilized a water-resistant temperature sensor. In this study, the heater was treated by means of controlling the PID temperature which ranged from 69oC to 70.5oC. Another test was doneby comparing the temperature value detected by the device’s temperature sensor with an external digital thermometer whichwas placed in the same container. The temperature value detected by the device’s temperature sensor had a difference of ±1,300C compared to the digital thermometer.
PEMANFAATAN ENERGI ANGIN SEBAGAI ENERGI ALTERNATIF PEMBANGKIT LISTRIK DI NUSA PENIDA DAN DAMPAKNYA TERHADAP LINGKUNGAN I N. Budiastra; I.A. Dwi Giriantari; Wayan Artawijaya; Cok. Indra Partha
Bumi Lestari Journal of Environment Vol 9 No 2 (2009)
Publisher : Environmental Research Center (PPLH) of Udayana University

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

Abstract

The environmental impacts due to technology applications have been an interesting issue for researchers and engineers worldwide. Innovations in development of environmentally friendly technology have been implemented to minimise severe consequences of the impacts, including in electricity generation technology. It has been known that the use of fossil fuel will increase the emission of greenhouse gasses, such as SO2, NO and CO2. A strong regulation for emission of greenhouse gasses has imposed a great extent of efforts in reducing the emitted gases. At present, the electricity need for Penida island is mainly generated using diesel generating system. The use of large amount of diesel oil for electricity generation certainly increases the emitted greenhouse gasses. This paper discusses an alternative technology in wind energy utilisation for electricity generation at Penida Island. The position of Penida island, which is in the ocean front region, yields a high potential use of wind energy for electricity generation. The analysis results show that at the Penida Island, the electricity may be produced with a maximum power of 50kW from a single wind turbine. In order to fulfil the total electrical energy need for the island, it is required to develop hundreds of turbines. Development of this amount of wind turbines certainly produces other related environmental impacts, such as ecological impacts, visual aesthetics and generated noises.
Implementasi PenggunaanSensorAccelerometer ADXL335 Pada Quadcopter Robot Berbasis Atmega32 I Gd Darko Pancev; I B Alit Swamardika; I Nyoman Budiastra
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstract

Abstrak - ADXL335 merupakan sebuah sensoraccelerometer 3 axis (x,y,z) yang memiliki keluaran tegangananalog pada masing-masing axisnya sehingga untuk membacanilai sensor dari ADXL335, pin output dari sensordihubungkan dengan pin ADC pada chip mikrokontrollerAVR ATmega32. Quadcopterrobotadalah sebuah robot terbangdengan empat buah baling-baling yang dihubungkan denganempat buah motor brushless yang berfungsi sebagaiactuatorrobot. Implementasi penggunaan sensoraccelerometerADXL335 3 axis (x,y,z) akan dimasukkankedalamflight controller pada Quadcopterrobot yangtelahterkaliberasi sehingga dapat dijadikan sebagai sensor untukmengatur derajat kemiringan dari robot agar dapat stabilpada saat terbang diudara.Kata Kunci – Accelerometer; ADXL335; Quadcopter;Mikrokontroller AVR ATmega32.
Rancang Bangun Quadropod Robot Berbasis ATmega1280 Dengan Desain Kaki Kembar I Wayan Dani Pranata; I B Alit Swamardika; I Nyoman Budiastra
PROSIDING CSGTEIS 2013 CSGTEIS 2013
Publisher : PROSIDING CSGTEIS 2013

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Abstract

Abstrak — Quadropod Robot merupakan salah satu jenis robot yang bergerak menggunakan kaki. Jumlah kaki yang digunakan sebanyak 4 buah. Masing-masing kaki memiliki 3 derajat kebebasan. Quadropod Robot ini memiliki bentuk tubuh yang simetris dan desain kaki kembar serta memiliki kemampuan merubah orientasi depan robot menjadi salah satu sisi dari keempat sisinya. Sehingga dapat berbelok ke arah lain dengan cepat. Kemampuan tersebut merupakan salah satu kelebihan Quadropod Robot dibandingkan dengan robot berkaki lainnya. ATmega1280 digunakan sebagai kontroler utama karena memiliki 4 buah timer 16 bit yang masing-masing dapat digunakan untuk mengontrol pergerakan keempat kaki Quadropod Robot. Motor servo HS-225MG dan HS-645MG digunakan sebagai penggerak dari setiap kakinya karena memiliki torsi yang cukup besar untuk menggerakkan Quadropod Robot. Sumber energi listrik yang digunakan berasal dari baterai LiPo 2 sel 2500mAh yang kemudian diregulasikan menjadi tegangan 5 VDC dengan arus maksimum mencapai 3 amper.Kata Kunci – Quadropod Robot, Mikrokontroler, ATmega1280
ANALISIS PERBANDINGAN DAYA OUTPUT LISTRIK ANTARA PENGGUNAAN TRANSMISI GEAR DAN PULLEY PADA PROTOTYPE (PLTPH) MENGGUNAKAN TURBIN TURGO Abdi Nugraha, I. M. Tata; Arta Wijaya, I.W.; Budiastra, I.N.
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p1

Abstract

Picohydro Power Plant is one of the environmentally friendly generators that can meet the electricity needs in the vicinity, one of which is in the Kanto Lampo Waterfall Tourism area. The planning of this PLTPH prototype is carried out to meet the lighting needs in the waterfall area. This PLTPH prototype plan uses a turgo turbine and there are two transmissions that can be used, namely, gear and pulley. This study will make a comparison between gear and pulley transmissions with the direct measurement method on the prototype and aims to determine the transmission that can get the best results on the PLTPH prototype. The ratio variations used on gears and pulleys are 4:1, 4:1.3 and 4:2. The PLTPH prototype using a turgo turbine obtained the highest results at a gear ratio of 4:1 with an output power of 48.70 Watt and the resulting torque of 0.613 Nm, while the lowest results were obtained at a pulley ratio of 4:2 with an output power of 10.83 Watt and the resulting torque is 0.147 Nm.
ANALISIS PENGARUH PENGGUNAAN DUA NOZZLE TERHADAP DAYA OUTPUT LISTRIK PADA PROTOTYPE PEMBANGKIT LISTRIK TENAGA PIKOHIDRO DENGAN MENGGUNAKAN TURBIN TURGO Yoga Pratama, I.G.; Arta Wijaya, I.W.; Budiastra, I.N.
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p11

Abstract

This study uses two nozzles on the PLTPH prototype with a turgo turbine because this research wants to apply the use of two nozzles in a pelton turbine. This study aims to determine the effect of using two nozzles on the output power produced by the PLTPH prototype with the direct test method on the prototype made. This two-nozzle PLTPH prototype with a turgo turbine can produce higher turbine rotation than the existing conditions. The final result is the highest rotation on the turbine using 2 nozzles where the A nozzle angle is 70° based on the x axis and the B nozzle angle is 60° based on the y axis of 752.2 rpm. In the 4:1 gear ratio transmission test, the results obtained were 504.4 rpm turbine rotation, 2114.9 rpm generator rotation, 10.99 volt voltage, 4.43 amperes current, and 48.70 watt power.
Co-Authors A.A Ngurah Amrita Abdi Nugraha, I. M. Tata agus mardiana putra Anak Agung Gede Maharta Pemayun Ariany Frederika Arta Wijaya, I. W. Arta Wijaya, I.W. I Gd Darko Pancev I Gede Dyana Arjana I Gede Feryanda Frasiska I N Satya Kumara I N. Setiawan I W Rinas I W. A. Wijaya I Wayan Arta Wijaya I Wayan Dani Pranata I Wayan Sukerayasa I. P. Dharmawan I.M. Suartika I.W. Parmadi Putra I.W.A Wijaya I.W.A. Wijaya Ida Ayu Dwi Giriantari Ida Bagus A. Swamardika Ketut Dharma Yasa Kosmas Damianus Tambi l Gusti Ngurah Janardana Made Niantara Riandana Parmadi Putra, I.W. Pratolo Rahardjo Sri Andriati Asri Tjok Gede Indra Partha W. Arta Wijaya W. Susongko Wayan Gede Ariastina Widyadi Setiawan Yoga Pratama, I.G.