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Journal of Electrical Technology UMY
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 25501186     EISSN : 25806823     DOI : 10.18196/jet
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Library & Information Science
The Journal of Electrical Technology UMY (JET-UMY) is a peer-reviewed journal that publishes original theoretical and applied papers on all aspects of Electrical, Electronics, and Computer Engineering.
Arjuna Subject : -
Articles 115 Documents
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Prototype Design of Unmanned Surface Ship to Detect Illegal Fishing Using Solar Power Generation Technology Yudhi Ardiyanto; Iwan Tri Sujoko; Wicaksono Aji Wibowo; Vendy Dwi Hendra Nugraha; Faiz Evan Saputra
Journal of Electrical Technology UMY Vol 3, No 1 (2019): March
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3149

Abstract

This paper describes the prototype and implementation of the unmanned surface ship to detect illegal fishing using solar power generation technology. Indonesia, one of the Southeast Asian countries, has some of the world’s most productive fishing grounds. Under the leadership of President Joko Widodo, Indonesia has launched a severe crackdown on illegal fishing in its waters. The color tracking technique is the capability to take a picture, segregate a specific color, and extricate data regarding the location of that picture containing merely that color. Whilst processing the pixels in a vision, the CMUcam5 controls a counter that keeps tracking the number of consecutive pixels in the current row before being within the tracked color bounds. The current pixel is marked as a tracked pixel only when the value is higher than the noise filter value. The team has developed innovative features to complete the program. The features are double hull and propulsion design, automatic cooling system, automatic camera scanning using pixy CMUcam5 for image processing, Webcam video camera, voice command with system recognition intelligent software, fuel engine speed maximum 50 km/h, double fin, solar panel for supply battery, and computerized control. In the screen base station, we can see the situation of PTS Siluman Ship from serial communication microcontroller, serial communication image processing CMUCam 5, video webcam, GPS, and compass. All of the data from PTS Siluman Ship are sent online.
Segmentation of the Electrocardiography Images as a Tool to Identify Heart Diseases Latifah Listyalina; Dhimas Arief Dharmawan
Journal of Electrical Technology UMY Vol 3, No 4 (2019): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3466

Abstract

The heart is a very vital organ. Cardiac examination can be done periodically by using an electrocardiograph. So that the heart's condition can be known. One of the optimization in helping the detection of heart disease automatically by using computer assistance. Automatic detection can be done by image processing methods as input, especially ECG images that have been segmented. In this study, ECG image segmentation is carried out through several stages, such as grayscalling, contrast enhancement, and segmentation. The hope, the results of this study can be used as input for automatic detection of heart disease.
Distribution Network Optimization Based on Genetic Algorithm Syahputra, Ramadoni
Journal of Electrical Technology UMY Vol 1, No 1 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1101

Abstract

This paper presents a new robust optimization technique for distribution network configuration, which can be regarded as a modification of the recently developed genetic algorithm. The multi-objective genetic algorithm has been applied to this problem to optimize the total cost while simultaneously minimize the power loss and maximize the voltage profile. The IEEE 69-bus distribution network is used in the tests, and test results have shown that the algorithm can determine the set of optimal nondominated solutions. It allows the utility to obtain the optimal configuration of the network to achieve the best system with the lowest cost.
Electrical System Design and Installation of New Building, Aisyiyah University, Yogyakarta Suripto, Slamet; Jamal, Agus; Purwanto, Kunnu; Wicaksono, Wahyu Nugroho; Jusman, Yessi
Journal of Electrical Technology UMY Vol 2, No 3 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2337

Abstract

Aisyiyah University New Yogyakarta Building is one of the commercial buildings that moves the field of education in Yogyakarta. The New Building of Aisyiyah University Yogyakarta consists of 10 floors, including the basement floor, main floor and roof floor. Electric loads installed at the New Building of Aisyiyah University Yogyakarta include lighting loads (lights) and power loads (sockets) and the power loads of electric motors (air conditioners, elevators and others), which of course requires a large enough electricity supply. Electricity installed in the New Building of Aisyiyah University in Yogyakarta is 1010.9 kVA. The power supplied is 800 kVA from State Electricity Company and the total power capacity of the transformer is 1000 kVA and a generator set with a capacity of 1000 kVA. Where the backup power supply system is fully supplied by the generator set.
Software Engineering to Develop Patterns for Accumulated Values of Accounting Transactions Sigit Widadi; Parwoto Parwoto
Journal of Electrical Technology UMY Vol 1, No 3 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1321

Abstract

Software for accounting information systems has its own peculiarities, because the transaction data is recorded in pairs over a period of time, must be traceable and can be seen again in the future at the time period desired by the user according to the accountability of financial information systems. This research presents a prototype development technique about inter-account configuration in the accounting structure and aims to provide technical assistance on how to develop a pattern of financial transaction information presentation on a double entry record system model using financial applications. Relational data set theory and concepts are used as a scientific explanation framework on how the correlation between accounts can be constructed mathematically so that the concepts can be understood by programmers when they develop software. The result of this study has been tested by applying to the financial applications in one of the microfinance institutions and it can work properly. The prototype development techniques of this research can be applied to the software development in the business field, such as services, manufacturing and trade byimplementing in the form of the software configuration system tools. furthermore, the financial application developers are expected to utilize this prototype development technique to produce more dynamic software as a financial data processor according to the accounting rules in the business organizations.
Design and Development of Fan Speed and Light Speed Control Systems with Android-Based Voice Commands Anna Nur Nazilah Chamim; Rama Okta Wiyagi; Karisma Trinanda Putra; Faruliyan Arya Ferisnanda; Yessi Jusman
Journal of Electrical Technology UMY Vol 2, No 2 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.2236

Abstract

At this time controlling electrical equipment in the form of fans and lights are still mostly using conventional switches. By using an android voice command device with a bluetooth connection, controlling the equipment can be easier. Using a Bluetooth connection will reduce the use of cables and speed up the process of activating or deactivating electronic devices because they do not have to get close to reach the switch. With input in the form of voice commands is very easy in controlling electronic devices such as fans and lights. With the adjustment of the fan speed and brightness of the lights with voice commands can save electricity and more easily in its settings
Analysis of 4G LTE Indoor Networks Performance with Networks in the Engineering Faculty G5 Building Universitas Muhammadiyah Yogyakarta Widyasmoro Widyasmoro; Ramadoni Syahputra; Kunnu Purwanto; Dedy Prasetiyo; Yessi Jusman
Journal of Electrical Technology UMY Vol 3, No 2 (2019): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.3252

Abstract

Analysis of the performance of the LTE network with WiFi networks was carried out in the G5 building of the Faculty of Engineering, University of Muhammadiyah Yogyakarta, which is the building of the Faculty of Engineering Laboratory. This research was conducted by comparing the LTE network with indoor or indoor WiFi networks, measuring these two networks using the Network Analyzer and Wifi Analyzer application to obtain information on signal quality data based on KPI and TIPHON standardization, which shows RSRP, RSRQ, and Throughput values through measurement using the Network Analyzer and Wifi Analyzer application. From the results of research that has been done shows that the G5 building has a WiFi internet network that is superior to the LTE internet network. The overall condition of the Wifi network is in very good condition and is stable for each floor. While the LTE network even though it has increased conditions on the second floor but overall is in a bad condition to normal. The LTE network has an RSRP value with an average of -143 dBm, while a WiFi network with an average of -90 dBm. Then the LTE network has an RSRQ value with an average of -13 dBm, while the Wifi network with an average of -15 dBm. For LTE network throughput it has an average max. ping by 50.9 ms and min. ping is 864.5 ms, while WiFi networks have max average. ping by 24.3 ms and min. ping of 144.5 ms. From the results of these data show that the G5 Building has a good WiFi network and is superior to the LTE network.
Expert System for Detecting Cat Skin Disease using Certainty Factor Method Yessi Jusman; Muhammad Ahdan Fawwaz Nurkholid; Amin Musthofa; Wita Yulianti; Farah Ramadhani
Journal of Electrical Technology UMY Vol 4, No 1 (2020): June
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet umy.v4i1.9458

Abstract

With the increasing number of people contaminated with cat disease, many veterinarians specializing in cats in Indonesia open up a practice in big cities only. Thus, it is not uncommon for cat owners who are late to provide treatment for skin diseases since the initial symptoms occur. Based on the problems to overcome skin diseases in cats, it is necessary to build a computerized system that has knowledge such as veterinarians and the system can be a tool in diagnosing types of diseases and provide solutions for treatment and prevention with the expert system of Certainty Factor (CF), because the Certainty Factor (CF) method is to prove whether a fact is certain or uncertain in the form of a metric that is usually used in expert systems. The results of the system are to help users, among others, veterinarians in diagnosing skin diseases in cats and animal owners, especially cats to find skin diseases in cats. It is expected to make it easier for doctors and cat owners to determine the type of skin disease based on existing symptoms and get the right treatment method. 
Disinfectant Spraying Robot to Prevent the Transmission of the Covid-19 Virus Based on the Internet of Things (IoT) Indah Sulistiyowati; Moh Imam Muhyiddin
Journal of Electrical Technology UMY Vol 5, No 2 (2021): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.v5i2.12363

Abstract

One way to prevent the transmission and spread of Covid-19 is to always keep ourselves and our environment clean. Maintaining personal and environmental hygiene can be done by using antiseptics and disinfectants. Disinfectants that are not used properly will be bad for humans. That is why so far the spraying of disinfectants for the prevention of COVID-19 has been carried out by human workers who are dressed in complete Personal Protective Equipment (PPE) using manual sprayers. This is certainly very risky to humans who do the spraying manually. The objective of this research is to minimize the risk of spraying disinfectants, by using a robotic power to spray disinfectant based on the Internet of Things (IoT) and a camera. This robot is operated by using a smartphone while to determine the environmental conditions around it is used a camera. From the test results, it obtained data that the robot works well and is quite reliable due to the wider scope limit because it uses an IoT connection to communicate with smartphones. The results of camera readings on laptops are also quite clear, although the higher the resolution on the display, the lag time required to transfer images to the laptop affects.
Human-Robot Interaction Based GUI Rahmat Fauzi Siregar; Ramadoni Syahputra; Muhamad Yusvin Mustar
Journal of Electrical Technology UMY Vol 1, No 1 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1102

Abstract

Nowadays, technological developments interactions in general, couldn't be separated from the rapid development of computer technology and human interaction. So that, supporting the user to be able to develop various models of interactions, especially the interactions between humans and robots. This study proposes a model of design and manufacture of human and robot interaction, in the form of a visual display on a computer controlling the robot motion. Object interaction in this study is using 4WD Smart Car Robot. Some of the tools used to build a robot control system at the time of interaction, including Netbeans IDE, based on JAVA and Arduino. The control algorithm is applied to build an optimal control system to model an interaction between humans and robots. Model of human interaction and robot is fully carried by the user in control of robot motion. The proposed interaction model can be implemented in real terms, in designing and making a model of human interaction and robot. 

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