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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Buletin Udayana Mengabdi Jurnal SPEKTRUM Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Sains dan Teknologi PIKSEL : Penelitian Ilmu Komputer Sistem Embedded and Logic Jurnal Ilmiah Kursor Jurnal Teknologi Informasi dan Ilmu Komputer JOIV : International Journal on Informatics Visualization Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Syntax Literate: Jurnal Ilmiah Indonesia SINTECH (Science and Information Technology) Journal Jurnal RESISTOR (Rekayasa Sistem Komputer) Jurnal Nasional Pendidikan Teknik Informatika (JANAPATI) Jurnal Teknologi Informasi dan Pendidikan Journal of Electrical, Electronics and Informatics International Journal of Engineering and Emerging Technology Jurnal Ekonomi Manajemen Sistem Informasi Indonesian Journal of Electrical Engineering and Computer Science Jurnal Teknik Industri Terintegrasi (JUTIN) Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Teknik Informatika (JUTIF) Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) Jurnal Teknik Elektro Journal of Electrical, Electronics and Informatics

Dewa Made Wiharta

Electrical Engineering Universitas Udayana

Author-ID : 416989

Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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RANCANG BANGUN PERTANIAN STROBERI BERBASIS INTERNET OF THINGS I Komang Leo Puja Artana; Dewa Made Wiharta; Linawati Linawati
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Technological developments have been utilized in various fields of science, includingagriculture. Technology support in agriculture has been proven to be able to provide betterproduction results. In this study, an IoT-based agricultural environmental monitoring systemwas developed. The system was built using Raspberry Pi as a microcontroller and dataprocessing center, equipped with a moisture sensor and a DHT 11 temperature sensor. Thissystem was applied to a laboratory-scale strawberry farm. The system works automatically toregulate the temperature and humidity of the plant environment. If the temperature andhumidity of the strawberry plants do not meet the standards, the pump will automatically waterto keep the strawberry plants at the appropriate temperature and humidity. The system is alsoequipped with a notification feature so that strawberry farmers can obtain information throughtelegram media when the temperature of the strawberry plants is hot and the soil of thestrawberry plants is dry. This tool is also equipped with a webcam camera as an additionalfeature that serves to detect the level of ripeness of the strawberries in terms of the color of thefruit. The camera will detect the color of the strawberry, and if the strawberry is red, thestrawberry is categorized as ripe, and the farmer will get a notification via telegram in the formof a picture that the strawberry is ready to be harvested.

SISTEM NOTIFIKASI UNTUK KEAMANAN RUMAH BERBASIS SENSOR VISUAL Ni Putu Diah Arista Ningsih; Dewa Made Wiharta; Nyoman Putra Sastra
Jurnal SPEKTRUM Vol 6 No 1 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

In this tool utilizing the Raspberry Pi and Arduino Uno Microcontrollers as equipment that can provide a good level of security for home security with visual sensor based. This tool uses an electronic key where you can electronically open and lock the door based on the password inputted using the keypad. The whole system on the electronic key is fully controlled by the Arduino Uno Microcontroller and if the password inputted on the keypad is more than three times wrong, an buzzer will ring, the camera will take a picture and the Raspberry Pi Microcontroller will immediately send a notification to the homeowner via the Telegram application. . When someone wants to try to get into the house by using the correct or wrong password the camera will still automatically take pictures and will immediately send notifications in the form of text and images to the homeowner through the Telegram application. In conditions far from home the homeowner can also find out the current state of the house through the Telegram application. In the system this tool uses a password where passwords can be stored in the form of "hard code", the average delay in each experiment of this tool is around three minutes.

Analisis Unjuk Kerja Pemantauan Jaringan OpenNMS (Open Network Monitoring System) pada Jaringan TCP/IP Yohanes Hendra Nugroho; Nyoman Putra Sastra; Dewa Made Wiharta
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Dalam membangun jaringan pada suatu perusahaan atau universitas yang besar diperlukan sebuah manajemen jaringan untuk memudahkan dalam pengaturan dan pengawasan jaringan tersebut. Semakin kompleks jaringan multimedia yang dibangun, maka semakin sulit bagi administrator untuk melakukan pemantauan terhadap jaringan tersebut. Untuk itu, perlu dibangun sebuah sistem monitoring yang bertujuan mempermudah dalam hal melakukan pemantauan dan juga pemeliharaan dan peningkatan kualitas jaringan. Dalam penelitian ini, dibangun sebuah sistem monitoring OpenNMS (Open Network Monitoring System) dengan tujuan untuk bisa memberi gambaran bagaimana OpenNMS bekerja memonitor jaringan yang ada. Pada penelitian ini, dianalisa kinerja dari perangkat-perangkat yang ada, berupa response time pada setiap service yang berjalan serta service SNMP untuk memonitor kualitas dari perangkat yang ada. Dibangun pula Bot yang berfungsi memberikan informasi yang dibutuhkan melalui aplikasi Telegram. Bot tersebut terintegrasi dengan OpenNMS dan dapat otomatis mengirim informasi alarm yang terpantau dari OpenNMS jika perangkat ataupun jaringan sedang terjadi masalah. Sehingga dari hasil penelitian ini, diharapkan memberikan kemudahan bagi administrator untuk memantau kinerja pada jaringan dan penggunaan alarm Bot Telegram untuk selalu memberikan informasi terbaru jika perangkat atau jaringan sedang mengalami down.

RANCANG BANGUN SISTEM MONITORING KETINGGIAN AIR BERBASIS ANDROID MENGGUNAKAN TRANSISTOR WATER LEVEL SENSOR Nyoman Arun Wiratama; Dewa Made Wiharta; Ni Made Ary Esta Dewi Wirastuti
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

So far, controlling the water level in the dam is still done manually by utilizing humanoperators, where in this case there are often mistakes in making decisions. In this research, asolution is offered in the form of an Android-based Water Level Monitoring System Design usinga Water Level Sensor Transistor. There are 4 transistor water level sensors integrated withArduino, ESP8266 module, camera module, relay, automatic water faucet, and LCD. Eachsensor is used to determine the water level with 5 different states, namely Zero, Safe, Warning,Alert, and Danger. If the water level touches one of the sensors, the input given by the sensor willautomatically be processed by Arduino which will then trigger a relay to open / close the waterfaucet and the value and status of the water level will be displayed on the LCD. After that thecamera will take pictures of the water level then the ESP8266 module which functions to connectto an internet connection will help the tool to send water level data in the form of images, status,and water level values to the Android application and the Telegram application that have beeninstalled on the Smartphone. The results obtained from this study are the design of the waterlevel monitoring system can run well in accordance with expectations, but there are stilldeficiencies that can be overcome with several developments so that the design of the tool getsbetter results, for example by using a servo motor on the floodgate which later can make the toolwork system even better.

REDESIGN JARINGAN HOTSPOT UNTUK INDOOR COVERAGE DI GEDUNG AGROKOMPLEK LANTAI 4 UNIVERSITAS UDAYANA Bayu Bimantara Putra; Nyoman Putra Sastra; Dewa Made Wiharta
Jurnal SPEKTRUM Vol 7 No 1 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Hotspots are signaled areas that refer to certain places (usually public places) and have internet services using wireless local area network (WLAN) technology. Because the installation of the device and the user who is accessing it is indoors, of course it will be faced with a barrier / barrier in the form of a wall that prevents the entry of the radio signal so that the hotspot signal coverage is unable to cover optimally. This condition occurs in the WLAN network of Agrokomplek Building, Udayana University. So it is necessary to measure the coverage area of the hotspot signal so that no blank spots occur. The results of the measurement of the 4th floor coverage of the Udayana University Agrokomplek Building showed that the signal coverage experienced a lot of attenuation caused by distance and barriers in the form of walls. To increase the signal level value, an access point is added in an area that does not get signal coverage.

PERANCANGAN JARINGAN BACKBONE MENGGUNAKAN ROUTING PROTOCOL EIGRP DI FAKULTAS TEKNIK UNIVERSITAS UDAYANA KAMPUS JIMBARAN Naufal Muhajir Abidin; D.M. Wiharta; N.P. Sastra
Jurnal SPEKTRUM Vol 6 No 1 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The backbone network infrastructure plan is one part of the development of information technology in the area of the Faculty of Engineering, Udayana University. Protocol Routing can be used to support data transmission, information, communication, etc. in the teaching and learning process. In practice, this region still uses the static routing method. But the increasing use of networks is designed by the New Network. The results of this design will be simulated with Cisco Packet Tracer 7.1.1. This new network uses the EIGRP routing protocol and will display some data, namely Packet loss, Throughput, Delay, and Fault Tolerant. Based on the results of testing and analysis of packet loss, in the 21 scenarios tested the same value is 0%. From this experiment the average throughput value was obtained 28.460 bps. This experiment the average value of Delay obtained is 10,95ms. Of the three trials, the data obtained included a very good category and entered at index 4 in the TIPHON qualification. In the Fault Tolerant test it is known that EIGRP has the ability to anticipate failures that occur on the network by finding alternative routes when the shortest path is not possible to pass.

ANALISIS CAKUPAN LAYANAN WI-FI GEDUNG PASCASARJANA UNIVERSITAS UDAYANA Putu Dhiko Pradnyana; D.M. Wiharta; N.P. Sastra
Jurnal SPEKTRUM Vol 6 No 2 (2019): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

The main changes in the telecommunication during these present days come mainly from wired technology to wireless technology. The Wireless LAN (WLAN) configuration consists of an access point, connected to users using air medium. The postgraduate building of Universitas Udayana has been equipped with a wireless network, supporting the study activities within the building. This research explains regarding the signal level quality and the Quality of Service (QoS) by analyzing the Wi-Fi coverage. The measurements were divided into two models, with and without barriers. The highest result comes to -42 dBm, conversely, the lowest is -82 dBm. Thus, the results show that the throughput value is 3.97 Mbps. Within the maximum bandwidth of 10 Mbps, the average packet-loss is not more than 3%. The delay measurement provides a result of not more than 100 ms, and the jitter obtained is 0.04. According to the digital floor plan, the calculation results of the coverage area match the signal level measurement.

ANALISIS JARINGAN WLAN 802.11g RUMAH SAKIT KAPAL KABUPATEN BADUNG IGN. Agung Dwi Jaya Putra; D.M. Wiharta; N.P. Sastra
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

For direct testing sometimes the signal level of the access point cannot always cover the maximum range of distance due to signal wave propagation in the room, such as reflection, alteration, or scattering of signals. For the purpose of implementation optimization, this study aims to obtain characteristics of signal level quality and QoS at the Mangusada Hospital of Badung Regency. The indoor propagation analysis of WLAN IEEE 802.11g is based on 3 models of measurement ie without barrier, wall barrier, and floor barrier. The result of the highest signal level measurement is -49 dBm, while the lowest signal level is -88 dBm. Maximum throughput measurement results 8.05 Mbps, from the maximum available bandwidth of 10 Mbps. While the coverage area based on testers using the software to adjust the floor plan on the building, almost in accordance with the calculation of signal level.

IMPLEMENTASI SISTEM PEMANTAUAN JARINGAN MENGGUNAKAN LIBRENMS PADA JARINGAN KAMPUS UNIVERSITAS UDAYANA I Wayan Krisna Saputra; Dewa Made Wiharta; Nyoman Putra Sastra
Jurnal SPEKTRUM Vol 7 No 2 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Udayana University is education institutions that has implemented an online learningsystem. The system requires fast and reliable access to internet so students can access themefficiently. In order to meet the need for internet access, it requires to provide infrastructure thatis able to keep internet services running smoothly. Network Monitoring requires an applicationcalled Network Monitoring System. There are many network monitoring applications availablefor free, which provides many option for network operators to carry out monitoring functions.LibreNMS is a popular application because LibreNMS has many features, such as: autodiscovering,flexible and diverse alerting system, comfortable user interface with a dashboardthat can be adjusted to user needs and has wide community support. LibreNMS allows networkadministrators to monitor performance on the network so that it is always available. This studyaims to build a network monitoring system on the Sudirman Campus of Udayana Universityusing LibreNMS. The test results show that LibreNMS is able to display traffic conditions andresource usage on every network device that is monitored.

ANALISA KONSUMSI DAYA SISTEM PELACAKAN POSISI MUATAN ROKET BERBASIS ARDUINO Anak Agung Bagus Rama Windhu Putra; Dewa Made Wiharta; Nyoman Putra Sastra
Jurnal SPEKTRUM Vol 5 No 2 (2018): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

This study examines the power consumption of the Arduino-based rocket payload position tracking system. The system device consists of Arduino Mega 2560, Sensor Compass, Barometer Sensor, GPS (Global Positioning System) Sensor, LCD (Liquid Crystal Display) character, Xbee-Pro 900HP, and two servo motors. Testing is done using a Digital Watt Meter tool that is able to read the voltage, current, and power used in the system. Test method by observing digital watt meter when the system runs tracking the rocket payload. Data retrieval interval is once every 10 minutes for 1 hour and calculates usage time, until the battery reaches the maximum usage limit. This research has been carried out successfully. When test performs on interval of 1 hour, the power usage by the system is 0.470 Ah until the battery voltage reaches 11.8 volts and the average power reaches 5.56 watts. Usage time of a Li-Po 1300 mAh battery is 3 hours 56 minutes until the battery voltage reaches 10.08 volts.

Co-Authors Aceng Sambas Adinda Hermawan, Salsabila Aggry Saputra Agus Permana Putra Agus Riki Gunawan Agus Supranartha Anak Agung Bagus Rama Windhu Putra Anak Agung Kompiang Oka Sudana Anggreni, Ni Komang Ayu Sri Anjeli Sitanggang, Feybe Anugrah Br. Ginting, Putri Arda Narendra, I Gusti Lanang Ari Wijaya I Kadek Asana, I Made Dwi Putra Bayu Bimantara Putra Bhaskara, I Made Adi Binti Dona, Sufiana Christanto Nadeak, Yobel Dd Hassel Putra Q Diafari Djuni H, I G A K Diafari, G A K dian krisnandari Doni Helmahera Duman Care Khrisne Eginna Gresia Br Purba Estry Nurya Savitri firmansyah maualana sugiartana nursuwars Frederik Nixon Gamantyo Hendrantoro Gede Sukadarmika Hendri Hendri I Gede Primanata I Gede Sudiantara I Gede Wira Darma I Gusti Ayu Garnita Darma Putri I Gusti Ayu Garnita Darmaputri I Gusti Ngurah Agung Jaya Sasmita I Kadek Dwi Gandika Supartha I Komang Leo Puja Artana I Made Adi Bhaskara I Made Agung Pranata I Made Arsa Suyadnya I Made Artana I Made Kris Widiantara I Made Oka Widyantara I Made Sastra Dwikiarta I Made Suartika I Made Widiartha I Nyoman Putra Maharddhika I Putu Ardana I Wayan Adi Juliawan Pawana I Wayan Krisna Saputra Ida Ayu Dwi Giriantari Ida Ayu Kaniya Pradnya Paramitha Ida Bagus Vidananda Agastya IGN. Agung Dwi Jaya Putra Ilham Ammarul Aziz Jayantari, Made Widya Kadek Teguh Purwanto Komang Budiarta Komang Oka Saputra Komang Sri Utami Komang Tania Paramecwari Lely Meilina Lie Jasa Linawati Linawati Linawati Luh Gede Astuti Made Sudarma Made Sudarma Mahardhika Tirta Naradhiya, Gede Naufal Muhajir Abidin Ngurah Indra ER Ni Kadek Diah Parwati Ni Komang Ayu Sri Anggreni Ni Made Ary Esta Dewi Wirastuti Ni Putu Diah Arista Ningsih Nicko Satrio Pambudi Nyoman Arun Wiratama Nyoman Putra Sastra Pawana P., I Gusti Ngurah Agung Pawana, I Wayan Adi Juliawan Putra, A.A.B. Rama Windhu Putra, Agus Permana Putra, Rio Juniyantara Putu Andhika Kurniawijaya Putu Ardana Putu Arya Mertasana Putu Dhiko Pradnyana Putu Krisna Adi, I Gusti Ngurah Putu Wirya Kastawan Rahadi, Putu Suta Adya Dharma Rio Juniyantara Putra Rukmi Sari Hartati Rukmi Sari Hartati Saputra, Komang Oka Sari Dewi Hartanto, Dessy Ratna Setiawan, Putu Ayu Citra Solly Aryza Sri Andriati Asri, Sri Andriati Widiadnyana, Putu Widyadi Setiawan Wikananda, I Gusti Ngurah Satya Wirawan Wirawan Yohanes Hendra Nugroho Yohanes Pracoyo Widi Prasetyo

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