Jurnal Rekayasa elektrika
The journal publishes original papers in the field of electrical, computer and informatics engineering which covers, but not limited to, the following scope: Electronics: Electronic Materials, Microelectronic System, Design and Implementation of Application Specific Integrated Circuits (ASIC), VLSI Design, System-on-a-Chip (SoC) and Electronic Instrumentation Using CAD Tools, digital signal & data Processing, , Biomedical Transducers and instrumentation, Medical Imaging Equipment and Techniques, Biomedical Imaging and Image Processing, Biomechanics and Rehabilitation Engineering, Biomaterials and Drug Delivery Systems; Electrical: Electrical Engineering Materials, Electric Power Generation, Transmission and Distribution, Power Electronics, Power Quality, Power Economic, FACTS, Renewable Energy, Electric Traction, Electromagnetic Compatibility, High Voltage Insulation Technologies, High Voltage Apparatuses, Lightning Detection and Protection, Power System Analysis, SCADA, Electrical Measurements; Telecommunication: Modulation and Signal Processing for Telecommunication, Information Theory and Coding, Antenna and Wave Propagation, Wireless and Mobile Communications, Radio Communication, Communication Electronics and Microwave, Radar Imaging, Distributed Platform, Communication Network and Systems, Telematics Services and Security Network; Control: Optimal, Robust and Adaptive Controls, Non Linear and Stochastic Controls, Modeling and Identification, Robotics, Image Based Control, Hybrid and Switching Control, Process Optimization and Scheduling, Control and Intelligent Systems, Artificial Intelligent and Expert System, Fuzzy Logic and Neural Network, Complex Adaptive Systems; Computer and Informatics: Computer Architecture, Parallel and Distributed Computer, Pervasive Computing, Computer Network, Embedded System, Human—Computer Interaction, Virtual/Augmented Reality, Computer Security, Software Engineering (Software: Lifecycle, Management, Engineering Process, Engineering Tools and Methods), Programming (Programming Methodology and Paradigm), Data Engineering (Data and Knowledge level Modeling, Information Management (DB) practices, Knowledge Based Management System, Knowledge Discovery in Data), Network Traffic Modeling, Performance Modeling, Dependable Computing, High Performance Computing, Computer Security, Human-Machine Interface, Stochastic Systems, Information Theory, Intelligent Systems, IT Governance, Networking Technology, Optical Communication Technology, Next Generation Media, Robotic Instrumentation, Information Search Engine, Multimedia Security, Computer Vision, Information Retrieval, Intelligent System, Distributed Computing System, Mobile Processing, Next Network Generation, Computer Network Security, Natural Language Processing, Business Process, Cognitive Systems. Signal and System: Detection, estimation and prediction for signals and systems, Pattern recognition and classification, Artificial intelligence and data analytics, Machine learning, Deep learning, Audio and speech signal processing, Image, video, and multimedia signal processing, Sensor signal processing, Biomedical signal processing and systems, Bio-inspired systems, Coding and compression, Cryptography, and information hiding
Articles
600 Documents
<![CDATA[Measurement of Ankle Brachial Index with Oscillometric Method for Early Detection of Peripheral Artery Disease ]]>
<![CDATA[Ervin Masita Dewi]]>;
<![CDATA[Gema Ramadhan]]>;
<![CDATA[Robinsar Parlindungan]]>;
<![CDATA[Lenny Iryani]]>;
<![CDATA[Trisno Yuwono]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 18, No 2 (2022) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v18i2.25758
<![CDATA[Peripheral Arterial Disease (PAD) is a blood vessel disease caused by blockage or plaque accumulation around the artery walls. PAD is included in the category of diseases that are often diagnosed too late and affect more severe cases, such as the death of certain tissues or body parts. The Ankle Brachial Index (ABI) is an accurate non-invasive method for diagnosing PAD, in practice, ABI is usually performed in certain hospitals and is still difficult to find due to limited tools. Therefore, a tool is made that can detect the condition of a person's PAD based on the ABI value. The tool is made using two MPX5050GP sensors to detect oscillometric pulses, a DC pump and solenoid valve as an actuator to pump and deflate the cuff, ADS1115 as an external ADC to increase the accuracy of sensor readings, as well as an LCD and buzzer as tool indicators. The output is displayed in the form of a print out from a thermal printer, with an emergency stop that functions as a safety system to power off the supply when a failure occurs in the measurement process. Oscillometric method is used to detect systolic and diastolic pressure. The accuracy of the tool is 95.5%. This accuracy result is obtained by comparing the readings of systolic and diastolic values using a sphygmomanometer which is commonly used.]]>
<![CDATA[Evaluasi Penerapan Metode Cell Splitting Terhadap Peningkatan Kapasitas dan Kualitas Jaringan LTE ]]>
<![CDATA[Hasanah Putri]]>;
<![CDATA[Febryyanti Nawang Wulan]]>;
<![CDATA[Fiqhi Anugerah]]>;
<![CDATA[Ainur Rizqi Aulia]]>;
<![CDATA[Dhea Anjar Sari]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 15, No 3 (2019) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v15i3.14741
<![CDATA[Based on the results of the survey and drive test on Jalan Karawitan Bandung - Indonesia, the value of radio parameters is considered poorly accepted by the Standard Operator Performance Indicator (KPI) standards. The parameters observed were Reference Received Power (RSRP) -90 dBm, Signal to Interference Noise Ratio (SINR) 5 dB, and throughput 800 Mbps. This region is a potential market region including tourist attractions, businesses, offices, and housing. In addition, based on data from the Operating Support System (OSS), there is an imbalance between traffic users and cell capacity that supports network quality. In addition, there are customer complaints about the quality of the Long Term Evolution (LTE) network in the office area. In this article cellseparation planning is carried out to increase the capacity and quality of LTE networks using Atoll 3.3 software. The results of planning show that an increase in network performance is the value of RSRP increased by 13.32%, SINR increased by 52.75%, and throughput increased by 236%.]]>
<![CDATA[Alat Optimasi Suhu dan Kelembaban untuk Inkubasi Fermentasi dan Pengeringan Pasca Fermentasi ]]>
<![CDATA[Gunawan Dewantoro]]>;
<![CDATA[Sri Hartini]]>;
<![CDATA[Agustinus Hery Waluyo]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 11, No 3 (2015) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v11i3.2245
<![CDATA[Fermentation optimizer aids have been common around us in both laboratories and home industries. However, these aids only served as incubator and sometimes cannot optimize the fermentation process due to the increasing humidity in a closed box. Nevertheless, adding holes to the box will not lead to a better result since unwanted bacterias come into the box. Therefore, a fermentation optimizer aids has been realized with two separate functions, namely fermentation incubator and post-fermentation dryer. This kit works in the temperature ranging from 35 degree C – 120 degree C, and equipped with two exhaust fans to minimize the humidity in both fermentation and dryermodes. The SHT11 was utilized to measure the temperature and relative humidity. A ceramic heater was used to warm up the air inside the box as desired by users. As the user interface, keypad and character LCD were used. ArduinoMega2560 serves as the main controller of the whole system. Compared to the conventional fermentation process, this kit works 9 hours faster and the fermentation objects are perfectly fermented.]]>
<![CDATA[Improved Performance of Trash Detection and Human Target Detection Systems using Robot Operating System (ROS) ]]>
<![CDATA[Kisron Kisron]]>;
<![CDATA[Bima Sena Bayu Dewantara]]>;
<![CDATA[Hary Oktavianto]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 17, No 2 (2021) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v17i2.20805
<![CDATA[In a visual-based real detection system using computer vision, the most important thing that must be considered is the computation time. In general, a detection system has a heavy algorithm that puts a strain on the performance of a computer system, especially if the computer has to handle two or more different detection processes. This paper presents an effort to improve the performance of the trash detection system and the target partner detection system of a trash bin robot with social interaction capabilities. The trash detection system uses a combination of the Haar Cascade algorithm, Histogram of Oriented Gradient (HOG) and Gray-Level Coocurrence Matrix (GLCM). Meanwhile, the target partner detection system uses a combination of Depth and Histogram of Oriented Gradient (HOG) algorithms. Robotic Operating System (ROS) is used to make each system in separate modules which aim to utilize all available computer system resources while reducing computation time. As a result, the performance obtained by using the ROS platform is a trash detection system capable of running at a speed of 7.003 fps. Meanwhile, the human target detection system is capable of running at a speed of 8,515 fps. In line with the increase in fps, the accuracy also increases to 77%, precision increases to 87,80%, recall increases to 82,75%, and F1-score increases to 85,20% in trash detection, and the human target detection system has also improved accuracy to 81%, %, precision increases to 91,46%, recall increases to 86,20%, and F1-score increases to 88,42%.]]>
<![CDATA[Pemantauan Energi Listrik pada Satu kWH-meter Fase Tunggal untuk Empat Kelompok Beban Berbasis Metode Payload Data Handling ]]>
<![CDATA[Suhendri Suhendri]]>;
<![CDATA[Arief Goeritno]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 14, No 3 (2018) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v14i3.11952
<![CDATA[A minimum system has been made for monitoring the electric energy in a single phase kWh-meter for four load groups based on the Data Handling Payload (PDH) method. The purpose of this study, namely to obtain an integrated system based on Arduino MEGA2560 R3 microcontroller and measurement of the system performance. Method of obtaining the system is carried out through (i) making boards for sensor modules and relays; (ii) making boards for module of the driving the system; (iii) wiring integration of a number of boards and modules; and (iv) programming against the microcontroller system assisted by the Arduino IDE based on the PDH method. Method of measuring the system performance is carried out through verification and validation tests. Sensors and relays module consist of a voltage sensor, four current sensors, four relays, and a supporting electronic circuit. The integration module of a number of pins is functioned as an integration of all pins associated with pins on the microcontroller system with regard to input and output. Programming the microcontroller system is based on the determination of algorithms and the preparation of syntax. The verification test assisted by the Proteus application is carried out in the form of simulation of the provision of artificial conditions in the form of the value of voltage, current, and the amount of time for the acquisition of energy values. Simulations are carried out on each path of the load group. A verification test is the determination of the linearity of current and voltage values. Based on the validation test, it is obtained the kWh values and the amount of electric energy costs (in rupiah) that are monitored at any time and can be printed every time or monthly.]]>
<![CDATA[Analisis Kinerja Penggabungan Logika Fuzzy dan PID pada Penjejak Matahari Dua Sumbu ]]>
<![CDATA[Muhammad Nur Hasan]]>;
<![CDATA[Yuwaldi Away]]>;
<![CDATA[Suriadi Suriadi]]>;
<![CDATA[Andri Novandri]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 19, No 1 (2023) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v19i1.15128
<![CDATA[Utilization of renewable energy from solar panel systems is increasingly being applied, but until now its utilization has not been maximized. The movement of the sun caused by rotation of the earth and cloudy condition should be taken into account to maximize the electrical energy in solar panels. In this study, a concept to calculate the movement of a two-axis sun tracker is proposed by using a combination of two controller methods, i.e. Proportional Integral Derivative (PID) and Fuzzy logic known as Fuzzy-PID (F-PID). To follow the movement of the sun, the LDR sensor is used as an input to light as well as output used to drive 2 units servo for x-axis and y-axis. Sun tracker that is used is based on tetrahedron geometry and uses three Light Dependent Resistor (LDR) sensors as input. Input and output components are connected to the Atmega 328P by using a combination of Fuzzy logic and PID programs (F-PID). Fuzzy logic programming is first performed on the Matlab application using Fuzzy Inference System (FIS), then converted into an Arduino-based programming language. The sun tracker movement and the voltage received by the solar panel will be stored into the SD card using a data logging module. Adjusting the sun tracker movement using the combined Fuzzy logic and PID method intends to maximize the electrical energy received by the solar panel. The results showed that the F-PID method obtained the maximum voltage of 5.3 V, a maximum current of 0.11 A, and a maximum power of 0.61 W.]]>
<![CDATA[Pengukuran RSSI Jaringan Sensor Nirkabel Berbasis ZigBee pada Berbagai Topologi ]]>
<![CDATA[Helmy Fitriawan]]>;
<![CDATA[Roviq Cholifatul Rohman]]>;
<![CDATA[Herlinawati Herlinawati]]>;
<![CDATA[Sri Purwiyanti]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 16, No 2 (2020) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v16i2.15750
<![CDATA[In order to get a good performance from a wireless sensor network, it is necessary to measure parameters of the network. RSSI (Received Signal Strength Indicator) is one of the network parameters that measure the signal strength received by a radio receiver in communication module. In this study the RSSI measurement experiment was performed in a wireless sensor network with the ZigBee protocol. Measurements were accomplished in three topologies, i.e. point-to-point, star, and mesh, both indoor and outdoor scenarios. Indoor measurements are carried out within the laboratory with concrete wall partition, while outdoor measurements are carried out in open space with the line-of-sight (LOS) conditions. XCTU software is used to measure RSSI measurements, by sending 100 data packets of 64 bytes with 1 second delivery intervals. Results show that the farther the data transmission distance, the RSSI value relatively decrease due to obstacles and reduced radio signal strength. While, in the mesh topology the addition of a router will also cause a slightly increase in the RSSI value. ]]>
<![CDATA[Pembangkitan Ekonomis pada Unit Pembangkit Listrik Tenaga Diesel Telaga Gorontalo Menggunakan Algoritma Genetika ]]>
<![CDATA[Sabhan Kanata]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 13, No 3 (2017) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v13i3.5451
<![CDATA[The increasing daily need towards electrical energy demands for generation companies to conduct operational cost-saving strategy including the generation fuel. One of the strategies that can be done is through economical generation optimization. The genetics algorithm of the heuristics method is known for its ability to overcome the problems characterized as non-linear, non convex, integer/ discrete, not continuous, and a system with a lot of variables. The evaluation technique employing the evolution theory has been applied to the case of IEEE 26 buses power system and diesel power generation in a unit in Telaga, Gorontalo. The result shows that the proposed method is believed to be able to minimize the generation cost better than the previous method. The method is tested by applying for its real system in Telaga, Gorontalo and it is found that the total cost at Rp 20.201.000,00 per hour with total load at 5.000 kW.]]>
<![CDATA[Pembaruan Aplikasi Paperless Office Universitas Syiah Kuala ]]>
<![CDATA[Taufik Fuadi Abidin]]>;
<![CDATA[Fitra Riyanda]]>;
<![CDATA[Rahmad Dawood]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 12, No 1 (2016) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v12i1.3246
<![CDATA[Paperless Office (PLO) is a web-based application that was created to facilitate digital office communication such as sending memos, letters, and posting news. It was initially created by Bambang Prastowo from Universitas Gajah Mada. The goals of using PLO are to reduce paper usage, speed up internal communication, and to simplify the management of correspondence in digital form. Syiah Kuala University (Unsyiah) has implemented PLO since early 2013. This paper aims to analyze the level of activity and users satisfaction of the renew PLO. The renew is done by making the web application more responsive and adding new features that do not exist in the earlier version. The results show that users satisfaction level increases, observed from system quality, information, and services. Variables that affect the level of activity, based on Pearson and Spearman correlations, are X1, X13,X20,X33, X36,X38, andX43, while the variables that affect the level of users satisfaction are X42 and X44.]]>
<![CDATA[Pengukuran Nilai Densitas pada Minyak Pelumas Sepeda Motor dengan Gelombang Ultrasonik ]]>
<![CDATA[Ahmad Fauzi Firmansyah]]>;
<![CDATA[Agus Indra Gunawan]]>;
<![CDATA[Indra Adji Sulistijono]]>;
<![CDATA[Denny Hanurawan]]>
<![CDATA[ Jurnal Rekayasa Elektrika Vol 18, No 1 (2022) ]]>
Publisher : <![CDATA[Universitas Syiah Kuala ]]>
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DOI: 10.17529/jre.v18i1.24919
<![CDATA[Density is a measure of the mass of each unit volume of an object, the higher the density of an object, the greater the mass of each volume. The density value can be used to distinguish the characteristics of lubricating oils that are prone to contamination with solid or liquid particles. The density value is also affected by changes in temperature, the higher the temperature of the lubricating oil, the smaller the density value. The regulations in force in Indonesia with the ASTM D1298-12b standard density test method state that the measurement uses a temperature of 15℃. In this study, the density measurement value was obtained at a temperature of 28℃ so it required a value conversion using the ASTM 53B table about the density correction factor. The technique of testing the material without damaging the test object using an ultrasonic sensor is used to measure the density value of motorcycle lubricating oil. Measurements are made by transmitting a 3 MHz ultrasonic trigger signal that can penetrate each medium with different characteristics. The received echo signal produces information about the distance between the medium, the speed of sound, and the acoustic impedance. The results of the measurement of 11 samples of motorcycle lubricating oil both in new and used conditions using the acoustic impedance method resulted in an accuracy of 93,6% or 0,058 kg/dm3 when compared to the value measured using a pycnometer. The MPX-2-C sample measurement showed the lowest error of 0,41% or 0,004 kg/dm3.]]>
