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Electrician : Jurnal Rekayasa dan Teknologi Elektro
Published by Universitas Lampung
ISSN : -     EISSN : 25493442     DOI : https://doi.org/10.23960/elc
Core Subject : Engineering,
Control & Systems Engineering Electrical & Electronics Engineering Engineering
Focus and Scope Publication of scientific research results in the field of electrical engineering which covers: ~ Power system analysis ~ Electrical energy conversion ~ High voltage technology ~ Electronics ~ Control system ~ Telecommunication system ~ Computer and interfacing ~ Information engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 586 Documents
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a Comprehensive and Inclusive Key Design for Smart Parking Solution Using the Three Validation Real Time Method Khawarizmi, Muhammad Nur; Rizkima Akbar Setiawan; Muhammad Fikri
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 19 No. 3 (2025)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v19n3.2940

Abstract

This study presents an innovative smart parking system known as SM Park, which utilizes the Three Validation Real-Time (3VR) method to provide accurate and efficient parking space monitoring. The system integrates multiple sensor technologies, including ultrasonic and Passive Infrared (PIR) sensors, along with computer vision, to detect the availability of parking slots in real-time. By leveraging the Internet of Things (IoT) and Artificial Intelligence (AI), SM Park enables users to reserve parking spaces in advance via its website, thus minimizing wait times and improving the overall efficiency of parking. The development process followed a prototype methodology, which allowed for rapid prototyping, feedback collection, and iterative design enhancements. The system's performance was evaluated through various stages, including literature review, system design, prototype development, and sensor integration. The system design eliminates the need for external devices such as RFID tags or mobile applications, creating a more inclusive parking solution. This paper outlines the design and architecture of the SM Park system, its technical components, and its potential for addressing key challenges in urban parking management, such as congestion, carbon emissions, and inefficient space utilization.
Rancang Bangun Alat Pemantau Kualitas Udara Sekitar Berbasis Mikrokontroler AVR ATMega 8 Dengan Penampil Dot Matrix Nasrullah, Emir; Raharjo, Yulliarto
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.29

Abstract

Air pollution recently has attained an apprehension level, in line with the speed of vehicle production and industrial development. Air quality monitoring system that can display air condition, temperature and humidity is expected to be one solution in overcoming bad impact of air pollution problems. This research is aimed to produce an air quality and condition monitoring system device using gas sensor TGS-2600 and SHT11 for sensing temperature and humidity variables. Data from sensors are processed using AVR AT Mega 8 and Basic Stamp-2e microcontrollers, whereas information display using dot matrix circuit. The final result is a monitoring system device which can display air quality and condition data on its dot matrix display. Information displayed in form of running text: temperature in Celcius unit humidity in percent RH unit, and air quality refer to concentration level of one type of gas pollutant i.e. carbon monoxide concentration.
Penerapan Fault Management Untuk Network Management System (NMS) Berbasis Open Source Pada World Wide InteroperabilityFor Microwave Access (WiMAX) Komarudin, Muhamad; Sulistiono, Wahyu Eko; Septama, Hery Dian
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.30

Abstract

Memperpanjang Kecerahan Cahaya Lampu TL (fluorescent) Dengan Menggunakan Metode Penyalaan Switching Supriono, Supriono
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.31

Abstract

The tactic, that generally people to make tube lamp (fluorescent) brightly shines on area that has poor voltage regulation at peak load time, is applied of bigger ballast transformer than its rating. Unfortunately, the side effect results life of lamp to be shorter marked by falling of its brightness. At this time, fluorescent lamp applying as lighting is turned on day-and-night 24/7. It happens on home that light of sun can not enter its rooms. Turning on fluorescent lamp using switching method gives more benefit that is : it can be brighten under low voltage until 120 V, further more the life of fluorescent lamp is longer than ballast method when it turn on continuously. Fluorescent lamp rating 10 watt that is using 10 watt ballast transformer made in Guang Zhow only shines 5 days when it work day-and-night, on the other hand 10 watt fluorescent lamp from Phillips has durability as its long-life but its brightness decreases signed by increasing resistant of LDR from 2200 ohm to 2600 ohm after turned on along 60 days. Fluorescent lamp 20 watt made in Matsui and ballast transformer 20 watt made in Sinar have superiority as well as switching method that is the value of LDR resistant not change at 2000 ohm, although it had worked along 60 days without turned off.
Pengaturan Motor Induksi Meggunakan Chopper Pada Rotor Berbasis Komputer Haris, Abdul
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.32

Abstract

Usually the speed control used the electronic instruments, for example it is based on a microcontroler. For easy controlling, microcontroller is connected to computer as a bridge between user and the motor that is to be controlled. The speed of induction motor for wound rotor type is adjustable by using the chopper that is connectedto its rotor circuit. With the use of the power transistor as a chopper, so switching can be manipulated and easy to control. The control instrument is made by using microcontroller that based on computer. The speed control used a chopper circuit results in the wider speed control depending on the duty cycle of the chopper. While by using the conventional external resistor just results in the speed control area that its condition depends on the variable resistors used.
Perancangan Robot Penjepit Barang Berbasis Mikrokontroler ATMega 8535 Harahap, Charles Ronald
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.33

Abstract

Pengaturan Aliran Daya Reaktif Dengan Transformator Regulasi Jenis Pengatur Tegangan Pada Jaringan Sistem Tenaga Listrik Despa, Dikpride
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.34

Abstract

Reactive power flow regulation is power system is required to improve voltage profile and reduce system losses. Reactive power flow regulation is done using correct tap setting on the regulating transformer. The study is conducted through literature survey and simulation using ETAP. The result shows that correct tap setting on the regulated bus, voltage increases up to theallowable limits 10 percents over nominal voltage and at the same time reduce system losses. Finally, tehe result also shows that about 77,07percents of total reactive power required by load can be met by the transformer.
Analisis Karakteristik Elektrik Zno Terdoping Cr2O3 Untuk Aplikasi Varistor Tegangan Rendah Sitorus, Henry B. H.; Asmi, Dwi; Sandaran, Saka
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 3 No. 1 (2009)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v3n1.35

Abstract

ZnO is one of the main ingredients of making varistor can be used as a protective device to protect electronic and electrical equipment from the dangers of impulse over voltage. Ability to function as a varistor protective because ZnO has a resistance that is not linear. When the system did not experience over voltage fault, current does not flow from the varistor, but when over voltage fault on system, current will flow from the fault line to the ground through varistor. The addition of dopant to ZnO expected to improve non-linierity of ZnO resitance. In this research used Cr2O3 as dopant. Varistor manufacturing using the dry pressing method at a pressure of 150 kg/cm2. Sintering process performed at a temperature of 900 degreeC with a time of detention for 2 hours. The size of the resulting varistor has a thickness 1.5 mm and 19 mm diameter. Characterization performed includes the analysis of crystal structures using X-ray diffraction, microstructure using MO and SEM, and electrical properties characterization volt-time using capacitive impulse voltage generator. Based on test results of x-ray diffraction and in accordance with PDF No. 38-1479 prove that the sample ZnCr5.0 contains Cr2O3 with ZnO compounds dominant. Microstructure obtained by SEM seems not so clear, it is because the process is not optimum preparation and etching is not performed on test samples. Pure ZnO Varistor can work cut given impulse voltage, whereas the varistor mixtures of ZnO-Cr2O3 can not work to cut the impulse voltage 900 V-1450 V provided, it is alleged to be caused sintering temperature given is not optimum and dopan provided is not sufficient to improve performance a varistor.
Extraction of Moving Objects on Underwater Video Using Method of Subtraction the Background Modeling Results Setyawan, FX Arinto; Sulistiyanti, Sri Ratna
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 11 No. 2 (2017)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v11n2.2024

Abstract

Abstract---This paper proposes a method for extracting moving objects on an underwater surveillance video. Video obtained using an underwater camera to capture the environmental conditions of the area. This research is the initial stage of the underwater surveillance system. Underwater surveillance system enables objects passing can be recognized shapes, types, and its behavior. The extraction method used in this research is a subtraction between the current frames with the background modeling results. Underwater video retrieval has a high level of difficulty because the background is always changing either due to a change the intensity and the movement of water currents. Therefore, it needs to be made an appropriate background model to address this problem. Modeling of the background on this research using adaptive modeling method, where the intensity of the background pixels is updated based on inference of the background intensity before. If the intensity of the pixels changed drastically beyond the allowed threshold value, the pixel is considered as the pixels of the object and the pixel values of the background model are updated based on this pixel value. The effectiveness of the proposed method is expressed with the value of recall and precision. The average recall value of the three videos is 62% and the value of its precision is 82%.Keywords--- Extraction Object, Background Modeling, Adaptive Modeling, underwater surveillance.
Pentanahan Menggunakan Elektroda Batang dan Elektroda Mesh dengan Penambahan Bentonit dan Garam Murni (NaCl), Studi Kasus ITERA Corio, Dean
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 13 No. 3 (2019)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v13n3.2118

Abstract

Pentanahan merupakan hal penting untuk melindungi sistem tenaga listrik. ITERA sebagai kampus baru dan pada tahap pengembangan membutuhkan pengujian sistem pentanahan untuk rencana pembangunan fasilitas dan fasilitas pendukung kegiatan kampus. Semua bangunan harus memiliki keandalan pentanahan sehingga gangguan pada peralatan listrik dan elektronik tidak membahayakan keselamatan. Faktor tanah menjadi salah satu parameter penting karena memiliki karakteristik nilai resistansi berbeda yang tergantung pada jenis tanah, jenis sistem pentanahan, suhu, kelembaban, kandungan elektrolit dalam tanah dan lainnya. Untuk alasan ini, perlu untuk membangun sebuah sistem yang cocok dengan karakteristik tanah ITERA sehingga nilai resistansi tanah yang kecil tercapai dan mencapai titik aman, maksimum 5 ohm (PUIL 2000). Uji pentanahan dilakukan dengan menggunakan metode variasi kedalaman dari dua jenis elektroda dan variasi konsentrasi dua jenis zat tambahan. Pada penelitian ini digunakan garam dan bentonite sebagai zat campur tanah. Pada kondisi awal dengan variasi kedalaman 20 cm hingga 100 cm pada dua jenis elektroda tanpa penambahan zat tambahan diketahui bahwa resistansi bumi di atas 5 ohm yang tidak mencapai kondisi aman. Penambahan bentonit dan garam menyebabkan resistensi tanah berkurang dengan meningkatnya konsentrasi zat aditif dan meningkatnya kedalaman implantasi elektroda. Nilai resistansi tanah yang aman dapat diperoleh dengan menggunakan elektroda mesh pada konsentrasi 7 kg garam dengan kedalaman 30 cm dan 40 cm pada konsentrasi 7 kg bentonit, sedangkan menggunakan elektroda batang, nilai aman dapat diperoleh dengan menambahkan 7 kg garam atau 7 kg bentonit pada kedalaman 80 cm.

Page 38 of 59 | Total Record : 586

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