Journal of Electrical, Electronics and Informatics
Journal of Electrical, Electronics and Informatics is a peer-reviewed journal which devoted to the advancement and dissemination of scientific knowledge concerning electrical, electronics and informatics throughout the world for researchers and professionals. The journal is an official publication of the Institute for Research and Community Services Udayana University. The scope of these areas may encompass: (1) theory, methodology, practice, and applications; (2) analysis, design, development and evaluation; and (3) scientific and technical support to establishment of technical standards in the field of electrical, electronics and informatics.
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<![CDATA[Survey on LMS Moodle for Adaptive Online Learning Design ]]>
<![CDATA[Linawati Linawati]]>;
<![CDATA[NMAE Dewi Wirastuti]]>;
<![CDATA[Gede Sukadarmika]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p03
<![CDATA[The paper proposed usage of LMS Moodle for adaptive learning implementation because of its simplicity and its capabilities. LMS Moodle has wide range of features to satisfy many learning styles. Adaptive learning design in this paper recommended blended learning method which involves face-to-face activity and LMS Moodle utilization. In this initial design stage, only five LMS Moodle activities were chosen. The selected activities have met all learning styles requirements.]]>
<![CDATA[Front Cover & TOC ]]>
<![CDATA[I Made Arsa Suyadnya]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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<![CDATA[Improving Performance Stability of Power System Java-Bali Interconnection with PIDPSS3B and PIDSVC Controllers ]]>
<![CDATA[Ida Bagus Gede Manuaba]]>;
<![CDATA[Putu Arya Mertasana]]>;
<![CDATA[Made Mataram]]>;
<![CDATA[Cok Gede Indra Partha]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p04
<![CDATA[Modern electric power system that many its dynamic equipment continuously vulnerable to internal and external disturbances. On the condition of the disorder, it often happen oscillation in each part or between parts of the electrical system is interconnected. These oscillations become a major problem for the stability of the power system. Modern electrical control systems require a sustainable balance between power generation and demand varying loads. Power System Stabilizer and Static Var Compensator is a control device that is used to dampen low frequency oscillations and to provide additional feedback signal to stabilize the system. To increase the damping, system equipped with PSS generator that provides additional feedback to stabilize the signal in the excitation system. It is generally that the machine parameters changed by the load, so the dynamic behavior of the different machines at different operating conditions. Design PIDPSS3B power system stabilizer and PIDSVC controller used aim to get performance and optimum damping. Design and optimization of the proposed has the ability to optimally dampen and suppress errors are minimal.]]>
<![CDATA[Design of Lighting Control with RTC Timer and SMS Using Microcontroller ]]>
<![CDATA[IGAP Raka Agung]]>;
<![CDATA[IGAK Diafari Djuni H]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p05
<![CDATA[The purpose of this research is to make the switch to turn on and off lighting with time can be set based on certain conditions. Controller utilizes Arduino UNO microcontroller with input from DS1307 RTC IC, photodiode, IComSat V1.1 with the output of LCD display and lighting switch. In this study realized photodiode sensor to detect dark and light illumination, DS1307 RTC IC as a source of real-time equal to the time actually, IComSat v1.1 SIM900 GSM/GPRS Shield for Arduino to communicate with HP via SMS, switch circuit and drivers for turn on and off the load of lighting and Arduino UNO with programs that has been put into flash memory. Research results obtained are supporting components of the equipment control to turn on and off of lighting utilizing microcontroller can be realized and are functioning in accordance with the plan. Two lightings can already turn on and off based on the input time of the RTC (the default) and on off status can be checked by SMS. Both lightings can already be turn on and off by SMS messages sent from mobile HP and received by microconroller (IComSat) and feedback lighting conditions is already accepted by mobile HP corresponds to on and off lights condition.]]>
<![CDATA[Android Application of Traffic Density Visualization Based on Vehicle Speed ]]>
<![CDATA[Widyadi Setiawan]]>;
<![CDATA[I Nyoman Budiastra]]>;
<![CDATA[Sri Andriati Asri]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p02
<![CDATA[This paper presents a system to display traffic density in real time based on speed of vehicles on the main roads in the city of Denpasar. With this application, users who are in a vehicle can get the density of roads information. The software will run on the Android platform created with the help of Google maps with visualization density of roads are being reviewed. Measurement of vehicle speed using the frame difference method, so the computational process can be run quickly and in real time. The trial results of this paper, user (vehicle speed measurement) produces the same data as the data is received by the client (viewer visualization) with the display format is the name of the location, vehicle speed, date and time data retrieval.]]>
<![CDATA[Natural Deys from Fruit Waste as a Sensitizer for Dye Sensitized Solar Cell (DSSC) ]]>
<![CDATA[I Nyoman Setiawan]]>;
<![CDATA[Ida Ayu Dwi Giriantari]]>;
<![CDATA[Wayan Gede Ariastina]]>;
<![CDATA[Ida Bagus Alit Swamardika]]>;
<![CDATA[Agus Selamet Duniaji]]>;
<![CDATA[Nyoman Satya Kumara]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p06
<![CDATA[Dye-sensitized solar cell (DSSC) is one of the potential candidates for the next generation solar cells. One of the most attractive features of the DSSC is the low production costs. The utilization of natural dyes is a new area for investigation due to their unique capability to absorb photons from natural sunlight or artificial light and convert it into electric current. The purpose of this study is to determine the potential of natural dye from red dragon fruit waste as a dye sensitizer. Red dragon fruit peel is initially extracted using methanol and the solution absorption spectra then is characterized using UV-Vis spectrophotometer. The absorption spectra is measured within a wavelength range of 400-800 nm. The characterization results show that the maximum absorption spectrum is at a wavelength of 446 nm. The natural dye solution then is used to immerse Fluorine Tin Oxide (FTO) coated with titanium dioxide (TiO2). The glass FTO is immersed in the dye solution for 24 hours. DSSC then is prepared by sandwiching the working electrode and counter electrode. An electrolyte solution is used to fill the interface between the two electrodes. The current and voltage (I-V) characteristics of DSSC is finally measured using amperemeter and voltmeter. The results indicated that the natural dye from the peel of red dragon fruit has potential as a dye sensitizer. Further research is still required to improve the performance of the DSSC.]]>
<![CDATA[COVIMOS: A Coastal Video Monitoring System ]]>
<![CDATA[I Made Oka Widyantara]]>;
<![CDATA[I Made Dwi Asana Putra]]>;
<![CDATA[Ida Bagus Putu Adnyana]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p01
<![CDATA[This paper intends to explain the development of Coastal Video Monitoring System (CoViMoS) with the main characteristics including low-cost and easy implementation. CoViMoS characteristics have been realized using the device IP camera for video image acquisition, and development of software applications with the main features including detection of shoreline and it changes are automatically. This capability was based on segmentation and classification techniques based on data mining. Detection of shoreline is done by segmenting a video image of the beach, to get a cluster of objects, namely land, sea and sky, using Self Organizing Map (SOM) algorithms. The mechanism of classification is done using K-Nearest Neighbor (K-NN) algorithms to provide the class labels to objects that have been generated on the segmentation process. Furthermore, the classification of land used as a reference object in the detection of costline. Implementation CoViMoS system for monitoring systems in Cucukan Beach, Gianyar regency, have shown that the developed system is able to detect the shoreline and its changes automatically.]]>
<![CDATA[Implementation of Hotspot Network for Internal Campus Communications Utilizing Smartphone and Free Software ]]>
<![CDATA[Pande Ketut Sudiarta]]>;
<![CDATA[I Putu Ardana]]>
<![CDATA[ Journal of Electrical, Electronics and Informatics Vol 1 No 1 (2017): JEEI (February 2017) ]]>
Publisher : <![CDATA[Institute for Research and Community Services Udayana University ]]>
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DOI: 10.24843/JEEI.2017.v01.i01.p07
<![CDATA[VoIP (voice over internet protocol) telephone communication using a data network. There is a change in switching from circuit switching technology into packet switching. Phone exchange can now use the Personal Computer equipped VoIP applications. Even the development of mobile phone technology to make VoIP communication can be performed utilizing the Smartphone. VoIP applications commonly use such as WhatsApp, Line etc. However, this application will cut the user data packets and often the quality is not satisfactory due to limited bandwidth and location of the remote server. During this time, Udayana University campus at several locations has been equipped with Hotspot network is mostly used to connect to the Internet. Hotspot network can also be used for voice communications with VoIP technology by adding a VoIP server. This concept not raises communication costs and should produce sound quality will be better because of the close location of the server. Because that researchers need to develop a model of telephone communication network utilizing Smartphone hotspot and students to be able to communicate in a campus environment. Method of this research is to develop a network utilizing hotspots and VoIP telephone exchange using the mini PC installed software FreePBX. On the side of the Smartphone using the free soft phone application and for aircraft used FXS analog phone as a codec. Tests will be performed for the communication between Smartphone and Smartphone to FXS terms of QOS and MOS produced. The results obtained, if the latency and packet loss have a value corresponding to the Real Time Protocol (RTP), the obtained MOS appropriate for the codec used while with the same codec if the value of packet loss and latency results are high then MOS obtained be small or less good quality. So the quality of VoIP is highly dependent on the quality of the signal obtained hotspot. In general, VoIP communication using a Smartphone connected to the server on the network hotspot mini pc can be used as a voice communication on campus.]]>
