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Applied Technology and Computing Science Journal
Published by Universitas Nahdlatul Ulama Surabaya
ISSN : 26214458     EISSN : 26214474     DOI : https://doi.org/10.33086/atcsj
Core Subject : Social, Engineering,
Engineering Social Sciences
Applied Technology and Computing Science Journal ( ISSN 2621-4458, E-ISSN 2621-4474) is a journal on all aspect of applied technology natural science that published online by Faculty of Engineering – University of Nahdlatul Ulama Surabaya. This journal published periodically twice in a year (on June and December) to accommodate the researcher from all over the world who want to publish the results of their research and contribution with all variety topics related to Engineering, Applied Computer Modelling and Simulation, Information System, Computer Science, Forecasting, Computer Applications, Expert System, E-Government, E-Business, E-Commerce, Information Security, Big Data, Intelligent System, Data Analysis, Data Mining, Smart City.
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Articles 8 Documents
 1 
Search results for , issue "Vol 5 No 2 (2022): December" : 8 Documents clear
IOT Power System MQTT Protocol at Micro-Scale Shrimp Farming in Urban Areas Mochamad Sidqon; Agung Kridoyono; Anton Breva Yunanda; Ameloddin Amimus
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3674

Abstract

In the post-pandemic era, Food security is activity that recommended by the government to save food crisis especially to increase food activity in urban areas. Like a shrimps, is the most favorite fish for food at urban area where in general this fish cultivation is carried out in the pond area. With the IOT MqTT protocol we propose the model of prototype system of shrimp cultivation at urban area where the place had topography characteristic like 5-9meter ground level, 31 °C temperature and 71%humidity. with the MQTT mobile telemetry we get the information about the changes condition like a temperature, PH, turbidity at the pond based android. Temperature for the heat level, PH for acidity and turbidity for clarity. Using wifi microcontroller AVR based to connect firebase cloud for storing data sensor that input data MUX microcontroller get from analog sensor. The power plant using solar power that implemented for power system at the peripheral. The result is the information condition of pond and alert if the value is out of set point value in the shrimp pond also the model of solar power system that implemented of shrimp farming.
Implementation of K-Means Algorithm for Diseases Clustering in Elderly Posyandu Participants Muhammad Iqbal Firdaus; Putri Aisyiyah Rakhma Devi
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3691

Abstract

The Posyandu of Tirem Village is one of the integrated service posts for the elderly, where they can get proper health services. To get the right health services, Posyandu officers group elderly posyandu participants who suffer from chronic diseases for counseling and treatment. The problems that occur during the data collection and counseling process carried out by Posyandu officers are in the calculations that are still basic and are carried out alternately on the elderly Posyandu participants in Tirem village. So this method has the risk of inaccurate data collection and inconsistent handling for the treatment of elderly residents due to different health histories among the elderly. This study aims to classify the data of elderly posyandu participants in Tirem Village who suffer from chronic diseases with predetermined attributes. This grouping process uses the Clustering method using the K-Means Algorithm. The data used in the form of 40 elderly posyandu participant data in October 2022. The results of data processing using the K-Means algorithm with Microsoft Excel tools and using RapidMiner obtained the same results, namely Cluster 1 and cluster_0 have a total of 32 data from 40 data, Cluster 2 and cluster_1 have a total of 8 data from 40 data.
Implementation of Additive Ratio Assessment (ARAS) in Decision Support Systems for Wi-Fi Repeater Selection Indra Nanda; Rhaishudin Jafar Rumandan; Alfry Aristo Jansen Sinlae
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3738

Abstract

Wi-Fi repeater devices are important tools for individuals, agencies, and companies so that the desired areas can be connected to the internet. To select a Wi-Fi repeater, take care in selecting the right product for your needs. However, not everyone has knowledge regarding the specifications of a Wi-Fi repeater. This resulted in a long process of selecting a Wi-Fi repeater because they had to find information regarding the specifications of the product to be purchased. This has an impact on the length of the process of making decisions. The purpose of this research is to build a decision support system using the Multi-Attribute Decision Making (MADM) approach and the Additive Ratio Assessment (ARAS) method for selecting the right Wi-Fi repeater device as needed. Referring to the utility level of each alternative to determine the ranking, the ARAS technique has the ability to choose the best alternative. Using the ARAS approach for case studies, which is identical to manual calculations, the developed system produces the same results, according to the case studies that have been completed. The DSS developed is website-based, with main features including managing data extraction, data alternatives, value alternatives, ARAS calculation methods, and displaying the best alternative in the form of ranking. Additionally, testing utilizing black-box testing reveals that all of the evaluated functions can function as they should.
Load Balancing Analysis Using Round-Robin and Least-Connection Algorithms for Server Service Response Time Trinugi Wira Harjanti; Hari Setiyani; Joko Trianto
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3743

Abstract

Today's internet network is expanding quickly, which encourages consumers to connect to more server services. A reliable server system is required to handle these circumstances. One approach that can be taken is to implement multiple servers. However, using many servers affects the response time of the server to be able to serve requests. Improving server system services through the load balancing method needs to be balanced with analysis, testing and evaluation of the network architecture and algorithms used in order to produce an optimal server system. In order to determine the algorithm to be tested optimal response time value, this study compares and analyses the load balancing approach utilizing the least-connection algorithm and the round-robin algorithm. Based on the test results using a request value of 500 connections/second for 1000 requests and 600 connections/second for 1200 requests, the round-robin algorithm looks slightly better than the least-connection algorithm. However, in the test scenario for the value of 700 connections/second for 1400 requests, 800 connections/second for 1600 requests, and 900 connections/second for 1800 requests, the least-connection algorithm looks superior. So that the average response time of the least-connection algorithm is smaller when there is an increase in connections. This condition has an impact on the faster the server responds to requests from users so that server performance can be continuously improved.
Enterprise Architecture Framework in Higher Education: Systematic Literature Review Nur Shabrina Meutia; Endang Sulistiyani; Rizqi Putri Nourma Budiarti; Rita Sari
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3751

Abstract

The use of information and communication technology helps improve the quality of education and learning processes, research, libraries and information services, and university management. With the development of ICT, universities are one of the companies engaged in education, so that institutions and universities need an information system planning strategy. This study presents a detailed and extensive systematic literature review (SLR) to select studies that carry out the current application of Enterprise Architecture in higher education. The method used in this research is the incorporation of various systematic literature studies on previous studies related to research objectives. The results of this literature review reveal important aspects related to the use of enterprise architecture applications in higher education, such as the most popular frameworks used in higher education, examine the reasons and determine the criteria for using application-based frameworks, and why enterprise architecture frameworks are needed to implement in higher education.
ESPCam Control Using Telegram on ESP32 Microcontroller-Based Security Camera Systems Aris Sudaryanto; Dimas Sasongko; Agung Kridoyono; Rizqi Putri Nourma Budiarti; Savilla Tifania Mahadewi; Feby Ade Arvianto
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3760

Abstract

A security camera must be easy to control, because users need to be able to monitor and control it even when they are in another place. To accommodate this need, security cameras are generally controlled by a computer, then the data is sent to a web server that can be accessed by users. However, the system is quite complicated because it still requires a computer, as well as the additional cost of renting a website server. In this study, computer functions were replaced with the ESP32 microcontroller, and the website server as well as the application interface was replaced with the Telegram BOT. The ESP32 microcontroller was chosen because its function is almost the same as a computer, while the Telegram BOT can be used free of charge. This study focuses on testing the success rate of the system in responding to commands given via the Telegram BOT, with the type of command connecting the Telegram BOT with ESPCam, turning on or off the LED flash, taking pictures, and the combination. Based on the tests that have been carried out for all existing command combinations, with each test being repeated 25 times, it was found that the success rate of the system reached 84.67%.
Rainless Day Management using Geographic Information System and Wireless Sensor Networks on Climatology Station Banjarbaru Raden Yani Gusriani; Munsyi M.T; Arum Murdianingsih
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3776

Abstract

Information obtained at the Banjarbaru Climatology Station includes seasonal forecasts, rainfall analysis, rainfall properties analysis, rainy day analysis, and monitoring of rainless days in the South Kalimantan region. Monitoring of Rainless Day is a form of data on rainless days that occur in South Kalimantan in sequence. The data is sent by observers to the Banjarbaru Climatology Station office using SMS, WhatsApp, and even by calling the staff of the Banjarbaru Climatology Station so that employees must check every media both SMS, WhatsApp, and telephone to find out the data sent by observers. Related to these problems, a web-based rainless day monitoring application was made. By using the Research and Development (R&D) method to facilitate the management of rainless day data, a geographic information system management system using Google Maps API and MySQL database is built which is integrated with Internet of Things (IoT) technology based on Wireless Sensor Networks (WSN) for data collection in real-time. The system built will provide notifications in the management of areas affected by rainless days in order to deal with drought.
Vehicle Safe Distance Detection System Based On Image Processing As Accident Prevention With Faster R-CNN Method Agus Khumaidi Khumaidi; Elok A Chandra; Perwi Darmajanti; Ivan A. Septiadi; Sryang T. Sarena
TEKNOLOGI DITERAPKAN DAN JURNAL SAINS KOMPUTER Vol 5 No 2 (2022): December
Publisher : Universitas Nahdlatul Ulama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33086/atcsj.v5i2.3804

Abstract

Numerous victims and huge economic and social losses have resulted from the escalating number of traffic accidents. From these issues, a technique to create a camera capable of detecting vehicles going around the driver using the Faster R-CNN method and calculating the vehicle's distance using the Stereo Vision and Mono Vision methods was discovered. The determination of safe distance between these cars is determined by the speed of the driver's vehicle, with the LED and buzzer warning system activating when the parameters are met. Based on the results of object detection experiments utilizing the Faster R-CNN, the model's success rate in identifying and classifying objects had an average success rate of 83.33 percent across 35 object situations examined from different perspectives. The success rates for distance estimates utilizing the Stereo Vision and Mono Vision methods with the Linear Regression equation were 98.84% and 98.10%, respectively.

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