Jurnal RESISTOR (Rekayasa Sistem Komputer)
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Published By Stmik Stikom Indonesia

2598-9650, 2598-7542

2021 ◽  
Vol 4 (2) ◽  
pp. 192-203
Author(s):  
Ida Bagus Ary Indra Iswara ◽  
I Putu Pedro Kastika Yasa

The use of video conferencing technology is increasing due to the COVID-19 pandemic. Bigbluebutton and jitsi are examples of open source video conferencing platforms that can be installed on their own servers. The server is created using a cloud-based virtual machine. Analysis of quality of service which includes delay, packet loss, throughput, and jitter is needed to determine the quality of service and the comparison of the two platforms. Observations were also made on the use of CPU, memory / RAM, and disk usage for each server. There are 3 test scenarios carried out. Each scenario is carried out on each existing VM specification. From this test, it is known that in the delay parameter, the highest bigbluebutton is obtained, which is 35,35 ms. And then the highest jitsi delay is 17,66 ms. In packet loss parameters, jitsi obtained the highest yield, namely 0,29%, while for bigbluebutton only 0,16% of packet loss was the highest. Throughput, bigbluebutton and jitsi all got very bad results. However, bigbluebutton obtained better results, namely, the highest throughput was 5.6%. While Jitsi obtained the highest throughput, namely 2,8%. Whereas for the jitter parameter, jitsi obtained 0,00 ms results on all tests in each VM. Meanwhile, bigbluebutton, get 0,1 ms on test 3 on VM 1


2021 ◽  
Vol 4 (2) ◽  
pp. 105-118
Author(s):  
Made Puji Dwicaksana ◽  
I Nyoman Satya Kumara ◽  
I Nyoman Setiawan ◽  
I Made Aditya Nugraha

This paper aims to review the current development of vessels with solar power to reference the research and development of solar power vessels in Indonesia. The research method is a systematic literature review on the development of solar-powered vessels and includes an online survey of vessels using solar PV. This study found 86 solar-powered vessels consisting of boats, utility boats, ferries, houseboats, research, vehicle carriers, dive boats, and yachts developed from 1988 to 2020. These solar-powered vessels were built for various functions such as competitions, cleaning the environment, passenger transportation, and water tourism.  Production of solar-powered vessels is increasing in terms of production volume, PV capacity, and battery capacity. In terms of PV configuration, the solar array is dominated by a fixed array structure. However, there have been innovations using sun-tracking, wind tracking airfoils, and expandable channels to increase PV capacity.


2021 ◽  
Vol 4 (2) ◽  
pp. 134-141
Author(s):  
Frskila Parhusip ◽  
Agus Perdana Windarto ◽  
Irfan Sudahri Damanik ◽  
Eka Irawan ◽  
Ilham Syahputra Saragih

Scientific articles are scientific articles in the form of reviews and research to be published in reputable scientific articles. This is one of the main things that becomes a reference for students in higher education during their studies and at the end of their studies. then the problem that must be faced is how to classify the factor of low student interest and being able to increase student interest in writing scientific articles. The factors of low student interest in writing scientific articles are the level of understanding, motivation, difficulty level, time, and infrastructure. The data used comes from questionnaire data from students of the 2016 batch of information systems study program. It has been obtained that the factor classification of the low interest of students in writing scientific articles is the factor that has top priority on the factor of low student interest is the infrastructure. The results showed that the C4.5 Decision Tree Algorithm was accurate for classifying the factors of low student interest in writing scientific articles with an accuracy rate of 100%.


2021 ◽  
Vol 4 (2) ◽  
pp. 213-216
Author(s):  
Agus Pramono ◽  
Teppei Jordy L'ga Tama ◽  
Teguh Waluyo

It is necessary to make a monitoring system for the amount of electricity that includes voltage, current, power and the amount of electricity consumption. In this research, carried out in a building that has a 3-phase current with a power of 197 KVA. The analysis used the Kolmogorov-Smirnov normality test method. The Kolmogorov-Smirnov normality test compares the current distribution in the building with the current which is transformed into a Z-score form and is assumed to be normal. In the data analysis, the results of Asymp. Sig. (2-failed) has a value of 0.2. This, this shows the data has been normally distributed


2021 ◽  
Vol 4 (2) ◽  
pp. 127-133
Author(s):  
Anggi Martua Valentino Sianipar ◽  
Solikhun Solikhun ◽  
Widodo Saputra ◽  
Iin Parlina ◽  
Zulaini Masruro Nasution

In the era of the industrial revolution 4.0 today, many technologies are used by humans to help their daily activities, one of which is in the field of home door security. To improve the security of home doors, we can use the Arduino Mega2560 as a control center, we can design a prototype for a door security system using E-KTP which is equipped with several sensors to improve the security of the door that is used as access for entry and exit. E-KTP is a card that is used as a person's identification and can also be used as a tool to open the door in the design of this tool, because in it there is a chip that can be read using electromagnetic waves. RFID (Radio Frequency Identification) is a sensor that can be used to read E-KTP, and to control it remotely, we can use the SMS (Short Message Service) service that is on every Cellphone / Smartphone so that the security of the house door is better because it is also equipped with Magnetic sensors and Buzzer as security if the door is forced to open by an irresponsible person.


2021 ◽  
Vol 4 (2) ◽  
pp. 186-191
Author(s):  
Siti Alvi Sholikhatin ◽  
Cindy Magnolia ◽  
Reno Dermawan Mutiara Putra

The region language and region literature in Indonesia is priceless and must be preserved. Each region has a variety of languages from different groups and become a cultural characteristic of certain region. However, the era of globalization and the development of information technology threatens the existence and preservation of regional languages which is prone to be replaced. The lowering number of speakers and the invasion of foreign languages are the main indicators of the deterioration of the existence of regional languages and literature. One of the efforts to restore the passion of regional language and regional literature is to develop a regional language keyboard that is easy to use by users of all age. The main purpose of the development of regional language keyboards is to introduce regional languages, especially to the younger generation who are beginning to be exposed to globalization so that they tend to forget the language and literature of the region. The keyboard is built with a natural language processing and smartphone-based approach. The Technology Preparedness Level (TKT) is at level 6, which means a demonstration of a model or prototype of a system or subsystem in a relevant environment.


2021 ◽  
Vol 4 (2) ◽  
pp. 119-126
Author(s):  
Made Agung Raharja ◽  
I Dewa Made Bayu Atmaja Darmawan

Cultural traditions from the life of the Balinese people have given birth to various types of things, ranging from dances, traditional clothing, music and traditional musical instruments. One of the gamelan instruments in Bali is Gerantang. Everyone does not have the ability to adjust the tone of the greantang blades, so that the process of making the bushes cannot be done by just anyone. In the field of sound / audio processing, there is a method called speech synthesis. One method that can be used in implementing music or tone synthesis is the Double Frequency Modulation (DFM) method. Tests that have been carried out in the synthesis process of gamelan grantang sound using the DFM method have been successfully carried out with a total of 55 test tone data and from 11 basic tones and frequencies of several synthetic sound experiments in the output column and in the results column show 10 output results are within tolerance limits frequency and 1 (one) tone out of tolerance. It was found that 10 tones that have been synthesized produce tones that have frequencies within the frequency tolerance limit with an accuracy of 90.9%


2021 ◽  
Vol 4 (2) ◽  
pp. 204-212
Author(s):  
Edi Anugrah ◽  
Muhammad Hasbi ◽  
Musfirah Putri Lukman

Eggplant (Solanum melongena L.) is one of the horticultural crop products and vegetable crop commodities. Growth and quality are influenced by soil conditions, climate, and plant properties. The main source of agriculture is water and soil nutrients. This research applies a smart monitoring and control system for eggplant based on internet of things with the drip irrigation method. This system uses a NodeMCU V3 microcontroller as a controller for the aquatic and water pump. Besides using the Soil Moisture FC-28 sensor to measure soil moisture as an alternative to detect water availability in plants. DHT11 sensors are also given to monitor the temperature and humidity of the air around the plant. In the system there is a monitoring feature that can monitor air humidity, air temperature and soil moisture data. The system can automatically drip irrigation through the relay module when the soil moisture is below 50% and stop the watering process when it reaches 60% humidity. The sensor detection results can be monitored in the Blynk application and monitoring data, in the form of soil moisture, air temperature and air humidity, are saved to the database and can be downloaded in the format (.csv).


2021 ◽  
Vol 4 (2) ◽  
pp. 178-185
Author(s):  
I Gusti Made Ngurah Desnanjaya ◽  
I Made Wira Adnyana ◽  
Kadek Aldy Adhistya Anugrah
Keyword(s):  

Arduino MKR merupakan salah satu bagian dari keluarga arduino yang memiliki kemampuan yang berbeda dengan arduino biasa. Dalam penelitian ini, penulis akan membahas kemampuan dari IC RTC yang sudah tertanam pada papan Arduino MKR dan membandingkan data dari ketelitian pembacaan nilai RTC. Nilai yang didapatkan akan menunjukkan papan Arduino MKR yang memiliki kemampuan pembacaan nilai RTC terbaik. Adapun papan Arduino MKR yang digunakan dalam penelitian ini yaitu dengan tipe Arduino MKR 1000, Arduino MKR Fox 1200, dan Arduino MKR Vidor 4000. Untuk mendukung penelitian, penulis menggunakan metode penelitian kuantitatif eksperimental. Penggunaan metode ini sangat cocok digunakan karena metode ini menonjolkan angka sebagai data dan penulis juga melakukan percobaan langsung pada papan Arduino MKR. Setelah penelitian dilakukan, maka dari hasil percobaan diperoleh rata-rata MKR 1000 memiliki selisih waktu terkecil sebesar 2.912 detik dibandingkan dengan MKR Fox 1200 dengan selisih waktu rata-rata 4.097 detik dan MKR Vidor 4000 memiliki selisih waktu rata-rata 5.804 detik. Untuk proyek yang menggunakan RTC (Real Time Clock) direkomendasikan menggunakan  MKR 1000.


2021 ◽  
Vol 4 (2) ◽  
pp. 167-177
Author(s):  
I Wayan Supriana ◽  
Made Agung Raharja ◽  
I Made Satria Bimantara ◽  
Devan Bramantya

The lecture mapping process is often hampered by the number and capacity of rooms, this condition often occurs because of the many obstacles that must be fulfilled. For example, there are courses offered in one semester that cannot be slots in space and time and the lecturer can teach at the same time for different courses. This is experienced by the Informatics Engineering Study Program of the Faculty of Mathematics and Natural Sciences, Udayana University, which offers a fairly large subject in each semester, causing optimization of the lecture space to often experience problems. The Genetic Algorithm (GA) is a model in the optimization of lecture space based on the natural selection mechanism through; coding problem, generate initial population, calculate fitness value, selection, crossover, mutation and optimal population. In this research, the optimization process implements two crossover models in the genetic algorithm, namely the n-point crossover and the cycle crossover. Based on the research that has been carried out, two crossover models provide optimal space usage mapping. From testing the n-point crossover model system gives the best fitness 1 in the 361 generation with a computation time of 11.08 while the cycle crossover model produces the best fitness 1 in the 361 generation with a computation time of 15.08.


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