Jurnal Nasional Teknik Elektro dan Teknologi Informasi
Topics cover the fields of (but not limited to): 1. Information Technology: Software Engineering, Knowledge and Data Mining, Multimedia Technologies, Mobile Computing, Parallel/Distributed Computing, Artificial Intelligence, Computer Graphics, Virtual Reality 2. Power Systems: Power Generation, Power Distribution, Power Conversion, Protection Systems, Electrical Material 3. Signals, Systems, and Electronics: Digital Signal Processing Algorithm, Robotic Systems and Image Processing, Biomedical Instrumentation, Microelectronics, Instrumentation and Control 4. Communication Systems: Management and Protocol Network, Telecommunication Systems, Wireless Communications, Optoelectronics, Fuzzy Sensor and Network
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<![CDATA[Coarse-Grained Sentiment Analysis Berbasis Natural Language Processing – Ulasan Hotel ]]>
<![CDATA[Warnia Nengsih]]>;
<![CDATA[M. Mahrus Zein]]>;
<![CDATA[Nazifa Hayati]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.548
<![CDATA[Sentiment analysis is a method for obtaining data from various platforms available on the internet. Advances in technology enable the machine to recognize a term that is considered a positive opinion and vice versa. These data and opinions play an important role as product, services, or other topic feedback. Without the need to obtain an opinion directly from the public, the provider has obtained an important evaluation to develop themselves. Hospitality business is a field related to services, providing services to customers. Indicators of business continuity also depend on customer feedback and serve as a reference for strategic policy. Sentiment analysis techniques based on Natural Language Processing are expected to overcome these problems. In this study, the prediction uses a temporary Random Forest (RF) classifier to summarize the quality of the classifier then it can be done using the Receiver Operating Characteristic (ROC) curve. The ROC curve is a good graphic to summarize the quality of the classifier. The higher the curve is above the diagonal line, the better the prediction, with the ROC Curve value of 0.90. The result shows that positive reviews are more than the negative reviews, i.e., 68% and 32%, respectively.]]>
<![CDATA[Prediksi Harga Saham Menggunakan Metode Brown’s Weighted Exponential Moving Average dengan Optimasi Levenberg-Marquardt ]]>
<![CDATA[Dini Indriyani Putri]]>;
<![CDATA[Agung Budi Prasetijo]]>;
<![CDATA[Adian Fatchur Rochim]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.678
<![CDATA[Stocks are securities as legal proof of company ownership. Such ownership is traded in the stock exchange only for public companies. A capital market is an activity that accommodates the desire to invest. Traders look for profits by taking advantage of stock movements that always experience fluctuating changes using technical analysis. The problem is how traders decide to buy a stock at an uncertain price. Brown's Weighted Exponential Moving Average (B-WEMA) method has the advantage of a better accuracy level, which is considered able to help with stock price prediction problems. The Levenberg-Marquardt (LM) algorithm has the advantage of optimizing its accuracy; therefore, it is proposed to be used as an optimization method to predict stock prices. The B-WEMA method with LM optimization improves the accuracy of stock price predictions, thereby reducing risks and increasing trading success. Results show the minimum difference of actual prices, and its prediction was 4.03%. The smallest error from MSE and MAPE were 719.56 and 1.99%, respectively.]]>
<![CDATA[Pengembangan Sistem Hidroponik Otomatis-Modern Berbasis Panel Surya dan Baterai ]]>
<![CDATA[Luthfansyah Mohammad]]>;
<![CDATA[Suyanto]]>;
<![CDATA[Muhammad Khamim Asy’ari]]>;
<![CDATA[Asma’ul Husna]]>;
<![CDATA[Sarinah Pakpahan]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.727
<![CDATA[The flexibility and the easiness of farming using modern hydroponic method have increased the installation requirements. The various types of plants can be applied to modern hydroponic systems, so this method has potential to be applied in various regions. However, not all regions have access to electricity networks. In fact, to operate modern hydroponic systems, an adequate supply of electrical power is required. In addition, a proper design becomes crucial part which has function to maintain the quality of inorganic substances as needed, accurately and automatically measured. Moreover, the system could be set in off-grid mode. Therefore, a further research of automatic hydroponics was conducted to solve various problems. The experimental data shows that the system is working accurately. The percentage of error sensor is not more than 10.75% and the accuracy of actuator performance is 100%. The system is also capable of working for a full day through a solar panel system of 100 WP and a battery of 27 Ah. In conclusion, the design of the automatic hydroponic system is capable of self-maintaining nutritional and pH value, solving artificial irradiation time problem, while simultaneously operating in various areas in a portable manner.]]>
<![CDATA[Teknik Pengujian Kinerja Algoritme Relay Jarak Menggunakan DIgSILENT ]]>
<![CDATA[Nanang Rohadi]]>;
<![CDATA[Nendi Suhendi]]>;
<![CDATA[Liu Kin Men]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.735
<![CDATA[This paper presents a novel technique of testing to evaluate the performance of the transmission line protection relay algorithms (model SEL-421 distance relay) using DIgSILENT. The purpose of this publication is to provide an understanding of using DIgSILENT software for testing protection relays. The accuracy of the fault impedance measurement algorithm due to the influence of the system uncertainty factor can be simultaneously observed and tested automatically. The effects of the fault resistance and the power flow angle are considered as uncertainty factors. In the proposed method, the fault simulation on the transmission line is carried out at a number of different fault locations with factors are varied based on the value of the sample parameter and changed simultaneously to see the effect of relay performance. A random sample of parameters is generated over a certain range of values. Automatic testing has been applied through an algorithm developed with DIgSILENT’s DPL (DIgSILENT Programming Language). The examples presented in this publication explaining the proposed methods of testing which can also be used to their practical use. In this publication, the method for testing distance relay has been successfully implemented through a combination of DIgSILENT and MATLAB.]]>
<![CDATA[Pattern Recognition untuk Deteksi Posisi pada AGV Berbasis Raspberry Pi ]]>
<![CDATA[Florentinus Budi Setiawan]]>;
<![CDATA[Franciska Amalia Kurnianingsih]]>;
<![CDATA[Slamet Riyadi]]>;
<![CDATA[Leonardus Heru Pratomo]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.738
<![CDATA[The development of technology in automation and robotics is overgrowing because of its high-efficiency level in terms of labor and time. In the warehousing system, one of the robots used is Automated Guided Vehicle (AGV). AGV is a transportation device in the form of a robot that can be controlled automatically, which functions as a carrier of goods using a navigation system to move in a predetermined direction. One of the existing AGV navigation systems is by following a line pattern on the floor. The system is inefficient because, gradually, the line pattern will wear out and can not be detected again due to the friction force of the AGV wheels itself. Therefore, it is necessary to develop an AGV navigation system to minimize these obstacles. This pattern recognition system uses a pattern placed on the building ceiling and camera as a sensor facing upwards, so that AGV can freely detect patterns. Then, the detected pattern was processed through a programmed Raspberry Pi 4 Model B. The test results show that this system can detect the position and successfully displays the coordinate point (x, y) of the AGV and will continue to run at any time until the program is changed as ordered.]]>
<![CDATA[Perancangan Sistem Disinfektan UV-C Sterilisasi Paket sebagai Pencegahan Penyebaran Covid-19 ]]>
<![CDATA[Reza Satria Rinaldi]]>;
<![CDATA[Ika Novia Anggraini]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.888
<![CDATA[This research is based on the societies' needs to sterilize the goods from delivery services during the Covid-19 pandemic. Due to the societies' needs, the delivery and logistics services did the sterilization of the goods by spraying disinfectant liquid in and out packages that gave impact to the wetness of packages. Therefore, innovation was needed to carry out the sterilization of goods and logistics so that they can be received or sent in good condition. The ultraviolet C (UV-C) disinfectant was this innovation. In this study, the design of a UV-C disinfectant system for sterilizing packages through a mini conveyor has been made. Then, a UV-C disinfectant system with a sterilization area of 90 cm long, 50 cm wide, and 50 cm high is used. The system needs a UV-C lamp with the power of 161.77 watts for the sterilization. The results of irradiation measurements of the UV-C disinfectant system is used to calculate the length of UV-C exposure time. Based on the calculation results, the designed UV-C disinfectant system was able to kill the virus up to 90% of the coronavirus within the length of UV-C exposure time toward the package in the sterilization area of at least 16 seconds.]]>
<![CDATA[Pengembangan Animasi Virtual Karakter Anak dengan Autisme dengan Model ADDIE ]]>
<![CDATA[Rahadian Kurniawan]]>;
<![CDATA[Febriana Kurniasari]]>;
<![CDATA[Restu Rakhmawati]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.894
<![CDATA[The increase in the number of people with autism in Indonesia is followed by an increase in the need of teachers. The main problem related to teaching children with autism is the lack of teaching skills in dealing with children with autism. One of the methods used by prospective teachers of children with autism to improve their teaching skills is by playing role-changing dramas. One person plays the role of a teacher, while the other plays a child with autism. From interviews conducted with several autistic special education students, this method was considered less effective in understanding and responding to children with autism. Nowadays, Virtual Reality (VR) allows prospective teachers to practice improving their teaching skills in a safer environment. Generally, the learning simulation process using VR utilizes virtual humans who have specific features and abilities. This study presents the ADDIE model's use to develop virtual human animation used as a learning agent for prospective teachers of children with autism. The animation represents movements which are often performed by children with autism that can be used as a VR module. From the test results, it is known that the animation developed is considered to represent the behavior of children with autism.]]>
<![CDATA[Model Rangkaian-T Pembangkit Listrik Tenaga Bayu untuk Analisis Aliran Daya Tiga-Fase ]]>
<![CDATA[Rudy Gianto]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.902
<![CDATA[Recently, penetration of wind power plant in electric power distribution system has increased significantly. The wind power plant penetration can affect the system’s steady state and dynamic conditions. Furthermore, as the electric power distribution system is usually unbalanced, it has to be analyzed in a three-phase manner. Therefore, in order for the system conditions to be properly evaluated, development of a three-phase model of the system components (including wind power plant) is necessary. This paper proposes a simple method for modeling and integrating fixed-speed wind power plant for steady state analysis (i.e., power flow analysis) of the three-phase distribution system. The proposed method is based on the T-circuit model which has previously been successfully applied to single-phase electric power systems. In this study, the single-phase T-circuit model is modified and extended so as to facilitate three-phase power flow analysis under unbalanced system conditions. Application of the proposed model in two three-phase distribution systems (i.e. 33-node and 25-node systems) is also investigated and presented in this paper. Results of the investigation show that the proposed method is valid and accurate.]]>
<![CDATA[Kombinasi Protokol Routing OSPF dan BGP dengan VRRP, HSRP, dan GLBP ]]>
<![CDATA[Debbi Irfan Mudhoep]]>;
<![CDATA[Linawati]]>;
<![CDATA[Oka Saputra]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.942
<![CDATA[Vocational High Schools as educational institution that adopt vocation based curriculum get the advantages and benefits of the development of the teaching factory. Teaching factory is a product and business oriented concept of learning in response to the challenges and development of the industry. However, during the pandemic period, teaching factory management faces many obstacles, one of which is in the performance of the network. The current network uses static routing network protocol which has no backup line or track. It is, therefore, suggested to apply dynamic routing OSPF and BGP with the VRRP, HSRP, and the GLBP workload method as the backup line which is measured through the throughput, delay, and packet loss parameter, for its Quality of Service (QoS). The research scenario stage applies each routing protocol to each performance method, so that it can be measured to obtain the expected QoS results at end users. The best result that will be recommended is routing OSPF by VRRP method because it has less than 1 second time comparison when there is a network failure. It is shown in the QoS result of 3.96, which shows that it is very satistactory compared to others.]]>
<![CDATA[Analisis Perbandingan Kinerja Brushless Motor Menggunakan Metode Eksperimen ]]>
<![CDATA[Erwan Eko Prasetiyo]]>;
<![CDATA[Wahyuni Fajar Arum]]>
<![CDATA[ Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 10 No 1: Februari 2021 ]]>
Publisher : <![CDATA[Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada ]]>
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DOI: 10.22146/jnteti.v10i1.987
<![CDATA[Energy-saving effort is a challenge in designing a UAV technology. One of many UAV components on the market is brushless motor. There is a possibility that the UAV component's performance does not match the existing specification data. Therefore, it is necessary to do component testing before designing a UAV. This paper presents the results of performance testing of brushless motors types A2212(6T), MR2205, and MT2204. Brushless motor performance is seen based on the amount of thrust, power, and the ratio between thrust to power (N/W). This testing uses an experimental method. The test uses a four-blade propeller type 5140 and a power supply with a DC output capacity of 15-30 V/50 A. The results of the brushless motor test at low power show that the A2212(6T)-2200KV type requires an average power of 25.858 W with a ratio of 0.042 N/W, the MR2205-2300KV type requires an average power of 22.166 W with a ratio of 0.052 N/W, and the MT2204-2300KV type requires an average power of 24.675 W with a ratio of 0.047 N/W. Based on the test data at working current below 1.877 A, it can be seen that the brushless motor type MR2205-2300KV has the best performance because it requires the least power and has the highest ratio value, compared to the other types.]]>
