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28,451 Article Results

Energy Efficient RF Remote Control for Dimming the Household Applainces

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4198
Rajesh Singh , Piyush Kuchhal , Anita Gehlot , Sushaban Choudhary
During recent years there is a strong trend towards radio frequency (RF) remote controls as it is delivering even more comfort to the users and increased usability with high robustness of the RF links. Lower power consumption with new features and security make RF remote control systems more competitive with widely used IR remote control systems.  In this paper we propose, a RF module based real time system, which is an integrated system designed to control the dimming or speed of the appliances. Zigbee module is used as RF module to establish wireless link between Remote and appliance section having 9600kbs baud rate and range of 100m. Dimming control circuits is part of appliances section which is used to control the appliances corresponding to signals generated by the remote section. This system provides energy efficient solution for household uses. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.7046 
Volume: 13
Issue: 2
Page: 232-237
Publish at: 2015-02-01

DTC Method for Vector Control of 3-Phase Induction Motor under Open-Phase Fault

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4202
M. Jannati , N. R. N. Idris , M. J. A. Aziz
Three-phase Induction Motor (IM) drives are widely used in industrial equipments. One of the essential problems of 3-phase IM drives is their high speed and torque pulsation in the fault conditions. This paper shows Direct Torque Control (DTC) strategy for vector control of a 3-phase IM under open-circuit fault. The objective is to implement a solution for vector control of 3-phase IM drives which can be also used under open-phase fault. MATLAB simulations were carried out and performance analysis is presented. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.6910
Volume: 13
Issue: 2
Page: 264-270
Publish at: 2015-02-01

Optimal Placement and Sizing of Distributed Generation Units Using Co-Evolutionary Particle Swarm Optimization Algorithms

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4200
Alireza Kaviani-Arani
Today, with the increase of distributed generation sources in power systems, it’s important to optimal location of these sources. Determine the number, location, size and type of distributed generation (DG) on Power Systems, causes the reducing losses and improving reliability of the system. In this paper is used Co-evolutionary particle swarm optimization algorithm (CPSO) to determine the optimal values of the listed parameters. Obtained results through simulations are done in MATLAB software is presented in the form of figure and table in this paper. These tables and figures, show how to changes the system losses and improving reliability by changing parameters such as location, size, number and type of DG. Finally, the results of this method are compared with the results of the Genetic algorithm (GA) method, to determine the performance of each of these methods. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.7026 
Volume: 13
Issue: 2
Page: 247-256
Publish at: 2015-02-01

ESL Reading Research Based on Eye Tracking Techniques

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4214
Wenlian Zhan , Zhulin Shen
Reading is a complex cognitive process. Through eye tracking techniques the cognitive features can be observed in depth, and therefore a better grasp of the instant cognitive processing of language can be achieved. Compared to traditional methods, the greatest advantage of eye tracking is that is that the reader proceeds with reading coherently and fluently without interrupt and interference, which secures the results in higher ecological validity.  This paper is mainly about studies on eye movement features in ESL reading, and particularly illustrates eye movement patterns, the relationship between eye movement and perceptual processing, and eye movement control, aiming at providing some basic evidences for explaining the relationship between eye movement behavior and cognitive processing thus helping to solve some theoretical problems in reading. DOI:  http://dx.doi.org/10.11591/telkomnika.v13i2.6936 
Volume: 13
Issue: 2
Page: 360-368
Publish at: 2015-02-01

False Node Recovery Algorithm for a Wireless Sensor Network

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4216
Rajesh J , D. Venkata Subramanian
This paper proposes a fault node recovery algorithm to enhance the lifetime of a wireless sensor network when some of the sensor nodes shut down. The algorithm is based on the grade diffusion algorithm combined with the genetic algorithm. The algorithm can result in fewer replacements of sensor nodes and more reused routing paths. In our simulation, the proposed algorithm increases the number of active nodes up to 8.7 times, reduces 98.8%, and reduces the rate of energy consumption by approximately 31.1%. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.6995 
Volume: 13
Issue: 2
Page: 379-386
Publish at: 2015-02-01

Filtering Based Illumination Normalization Techniques for Face Recognition

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4209
Sasan Karamizadeh , Shahidan M abdullah , Seyed Mohammad Cheraghi , MazdakZamani MazdakZamani
The main challenge experienced by the present face recognition techniques and smooth filters are the difficulty in managing illumination. The differences in face images that are created by illumination are normally bigger compared to the differences in inter-person that is utilized to differentiate identities. However, face recognition over illumination has more uses in a lot of applications that deal with subjects that are not cooperative where the highest potential of the face recognition as a non-intrusive biometric feature can be executed and utilized. This study aims to offer a crucial review of researches involving illumination techniques, and image-based face recognition over illumination. Information was collected from journals, books and electronic sources published in the period of 1971 to 2013. In depth explanation is provided on the advantages and drawbacks, strategies and performance levels of the current techniques. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.7001 
Volume: 13
Issue: 2
Page: 314-320
Publish at: 2015-02-01

A New Ozone Concentration Regulator

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4211
Michael David , Tay Ching En Marcus , Maslina Yaacob , Mohd Rashidi Salim , Nabihah Hussin , Mohd Haniff Ibrahim , Sevia Mahdaliza Idrus , Nor Hafizah Ngajikin , Asrul Izam Azmi
Laboratory design of an ozoneconcentration regulator which is build on the theory of continuity equation forgas flow in parallel pipes in conjunction with the ozone elimination potentialsof an ozone destructor is presented. At an initial oxygen flow rate of 33.33 cm3s-1,ozone concentration was  generated andvaried between 429.30 parts per million (ppm) to 3826.60 ppm.  Similarly at an initial oxygen flow rate of 25cm3s-1, ozone concentration was  generated and varied between 387.30 ppm to4435.20 ppm. Effect of flow meter when the ozone concentration was set toapproximate 1000 ppm  were investigatedand reported. Fine tuning of the regulator is necessary to ensureconcentration stability for long duration experimental work. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.6952
Volume: 13
Issue: 2
Page: 329-336
Publish at: 2015-02-01

Location-Based Augmented Reality Information for Bus Route Planning System

10.11591/ijece.v5i1.pp142-149
Komang Candra Brata , Deron Liang , Sholeh Hadi Pramono
Bus Route Planner applications will unfold their full potential when bus passengers are enabled to get information about the shortest path route, make a travel plan and get the correct buses in order to reduce the travel time. However, all these information are provided in text based and map view. It is difficult to understand them for the person who does not know place in the map. This paper describes the android base application of Augmented Reality (AR) that has feature to support the action of a bus user in an innovative and dynamic ways by putting additional information layer on smart phone camera screen and give the instruction assistant that leading the user way to the nearest bus stop. The experimental results show that, the overall functional of proposed application can be run well in various type of Android smart phone. When compared with similar bus traveling applications, the proposed application works more efficient.
Volume: 5
Issue: 1
Page: 142-149
Publish at: 2015-02-01

Internet Access Using Ethernet over PDH Technology for Remote Area

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4213
Enceng Sulaeman , Tris sutrisno
There was still is gap among people living in city and in remote area to get information access, especially who lived in the Eastern part of Indonesia. People living in such remote area usually were isolated from town by natural condition like rivers, valleys, hills and so on.. Therefore, telecommunication  infrastructure for remote area using cooper was not effective and efficient way to build. The issue was how  information and communication technology could penetrate such areas. This research aimed to propose technology that could be implemented to overcome the difficulties. Ethernet over Plesiochronous Digital Hierarchy (EoPDH) was one of many techniques that provided Ethernet connectivity over non-Ethernet networks.  EoPDH was a standardized methodology for transporting native Ethernet frames over the existing established PDH transport technology.  To provide last milefor the local people, use of Mesh Wireless Local Area Network was made and connected to internet gateway via Ethernet over PDH based microwave radio link. The test showed that The Ethernet frames were successfully transported to remote area with good quality of service such as throughput, response time, and transaction rate. DOI: http://dx.doi.org/10.11591/telkomnika.v13i2.7036 
Volume: 13
Issue: 2
Page: 352-359
Publish at: 2015-02-01

An Improved Design of Linear Congruential Generator based on Wordlengths Reduction Technique into FPGA

10.11591/ijece.v5i1.pp55-63
Hubbul Walidainy , Zulfikar Zulfikar
This paper exposes an improved design of linear congruential generator (LCG) based on wordlengths reduction technique into FPGA. The circuit is derived from LCG algorithm proposed by Lehmer and the previous design. The wordlengths reduction technique has been developed more in order to simplify further circuit. The proposed design based on the fact that in applications only specific input data were used. Some nets connections between blocks of the circuit are ignored or truncated. Simulations either behavior or timing have been done and the results is similar to its algorithm. Four best Xilinx chips have been chosen to extract comparison data of speed and occupied area. Further comparison of occupied area in terms of flip-flop and full adder has been made. In general, the proposed design overcome the previous published LCG circuit.
Volume: 5
Issue: 1
Page: 55-63
Publish at: 2015-02-01

Experimental Dielectric Measurements for Cost-fewer Polyvinyl Chloride Nanocomposites

10.11591/ijece.v5i1.pp13-22
Ahmed Thabet , Youssef Mobarak
Polymer nanocomposites possess promising high performances as engineering materials, if they are prepared and fabricated properly. In this research, it has been processed samples of nanocomposite polymers as electrical insulating materials for application on the electric power cables by using the latest techniques of nanotechnology. This paper has been investigated enhanced dielectric and electrical properties of Polyvinyl chloride PVC as matrix have shown that trapping properties are highly modified by the presence of costless nanofillers clay and fumed silica. An experimental work for dielectric loss and capacitance of the new nanocomposite materials have been investigated and compared with unfilled industrial materials. It is found that a good correlation exists in respect of capacitance and dielectric loss values measured with percentage of nanofillers. Thus, it has been investigated the influence of costless nanofillers material and its concentration on dielectric properties of industrial polymers-based composite systems. A comparative study is performed between the unfilled base polymers, the systems containing one type of nanoparticles clay or fumed silica inside the host polymer with various concentrations.
Volume: 5
Issue: 1
Page: 13-22
Publish at: 2015-02-01

Left and Right Hand Movements EEG Signals Classification Using Wavelet Transform and Probabilistic Neural Network

10.11591/ijece.v5i1.pp92-101
A. B. M. Aowlad Hossain , Md. Wasiur Rahman , Manjurul Ahsan Riheen
Electroencephalogram (EEG) signals have great importance in the area of brain-computer interface (BCI) which has diverse applications ranging from medicine to entertainment. BCI acquires brain signals, extracts informative features and generates control signals from the knowledge of these features for functioning of external devices. The objective of this work is twofold. Firstly, to extract suitable features related to hand movements and secondly, to discriminate the left and right hand movements signals finding effective classifier. This work is a continuation of our previous study where beta band was found compatible for hand movement analysis. The discrete wavelet transform (DWT) has been used to separate beta band of the EEG signal in order to extract features.  The performance of a probabilistic neural network (PNN) is investigated to find better classifier of left and right hand movements EEG signals and compared with classical back propagation based neural network. The obtained results shows that PNN (99.1%) has better classification rate than the BP (88.9%). The results of this study are expected to be helpful in brain computer interfacing for hand movements related bio-rehabilitation applications.
Volume: 5
Issue: 1
Page: 92-101
Publish at: 2015-02-01

Optimal Disturbance Rejection Control of Underactuated Autonomous Underwater in Vertical Plane

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4180
Yang Qing , Gao De-xin
To realize the optimal control of underactuated autonomous underwater vehicle (AUV) in vehicle plane with external disturbances, a optimal disturbance rejection controller is proposed with respect to the quadratic performance indexes. Firstly, the depth control model of underactuated AUV system and the wave model is proposed; Then based on the theory of the quadratic optimal control and stability degree constraint, a feedforward and feedback optimal disturbance rejection control law with a higher mean-square convergence rate is derived from the Riccati equation and the Sylvester equation, which can reject the disturbance influence to AUV. Finally, the controller is applied to the dive plane control of AUV with wave force disturbances, and the results demonstrate the effectiveness and robustness of the controller. DOI: http://dx.doi.org/10.11591/telkomnika.v13i1.6889 
Volume: 13
Issue: 1
Page: 91-100
Publish at: 2015-01-01

Two regional power system PSO PID Control Research

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4174
Jingfang Wang
In this paper, we propose a PID parameter tuning of particle swarm optimization for multi-objective optimization characteristics of two regional power system PID controller design.  By defining a comprehensive consideration of system output overshoot, rise time and the fitness function term steady-state error indicators, such as the ITAE, and in accordance with the performance requirements of the actual control system, appropriate weighting of each index item. Use with base and improved particle swarm algorithm for multi-objective optimization PID. PSO optimization algorithm has good global search ability and high convergence rate. You can respond to the PID controller tuning parameters directly from the output of the PID control system easily balance between speed and stability control systems. After using PSO-PID control in two regional power system ，the amount of overshoot in the step total response downs from 65% to 5%. Adjust time  downs from 12 seconds to 3 seconds.  DOI: http://dx.doi.org/10.11591/telkomnika.v13i1.6835 
Volume: 13
Issue: 1
Page: 33-41
Publish at: 2015-01-01

An Abnormal Signal Diagnostic Emendation Technique Research

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/4181
Tiejun Cao
This paper introduced a sort of abnormity data method. We start with analysing an example first and carry through theory deducing once more and list this method arithmetic step and application field finally. With the development information and control technology, we need more and more important and imminent to diagnose abnormity data and eliminate them. The quality of measuring data is improved availably by the application of data emendation technique. DOI: http://dx.doi.org/10.11591/telkomnika.v13i1.6695 
Volume: 13
Issue: 1
Page: 101-105
Publish at: 2015-01-01
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