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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
Arjuna Subject : -
Articles 103 Documents
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Search results for , issue "Vol 12, No 3: March 2014" : 103 Documents clear
Registration of Brain Medical Images Based on SURF Algorithm and R-RANSAC Algorithm Zongyun Gu; Li Cai; Yunxia Yin; Yatao Ding; Hongxing Kan
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a matching method for medical image registration, which combined with SURF(Speeded up Robust Features)algorithm and the improved R-RANSAC(the Randomized of Random Sample Consensus) algorithm. Firstly, this algorithm extracts featured points with SURF algorithm from images and matches similar featured points with Euclidean distance. Secondly, the R-RANSAC algorithm is used to eliminate wrong matches and the SPRT (Sequential Probability Ratios Test) is used to minimize R-RANSAC runtime. Finally, the image registration process is accomplished by estimating space geometric varied parameters according to least square method. The algorithm combines robustness and high efficiency of SURF and high-accuracy of R-RANSAC algorithm. Experimental results show that in the condition of images with noise, non-uniform intensity and large scope of the initial misalignment, the proposed algorithm achieves better robustness and higher speed while maintaining good registration accuracy compared with the conventional area-based and feature-based registration methods. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4500
Electric Vehicle Lithium Ion Batteries Thermal Management Gaoussou Hadia Fofana; You Tong Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The lithium ion batteries, thanks to their high densities and high power, became promotes element for hybrid-electric and plug-in electric vehicles. Thermal management of lithium ion battery is important for many reasons, including thermal runaway, performance and maintains a constant temperature during the operating, security, lifecycle. However, in a battery pack, the batteries are stacked against each other without cooling surfaces except the outer surface of the package and the cell in the center of pack are exposed to overheating and thermal runaway. After several recent researches, it has been proved that lithium ion batteries are currently confronts a problem of temperature rise during their operation discharge, which affects the batteries performance, efficiency and reduces the life of lithium ion batteries.  However, this work is set to access the three dimensional analytical modeling based on Green’s Function technique to study the thermal behavior of lithium ion battery during discharge with different discharge rates (0.3C, C/2, 1C, 2C) and strategies natural convection cooling on the surface of the battery is performed. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4026
Optimization Research of Energy Structure in Hebei Province Jinying Li; Zhifen Xu; Chunlian Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In the case of excessive energy consumption and energy consumption structure is irrational in Hebei Province, energy structure optimization has become increasingly important. This paper establishes a multi-objective decision model of energy structure optimization through regression analysis by collecting large amounts of data of energy consumption and energy-related investments and pollution control over the years, through a comprehensive and systematic analysis of the model, then using genetic algorithms to solve the model ,the result verifies the validity of the method .Finally,the paper analyzes the result and clarifies the future direction of development of the energy structure in Hebei Province. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.3846
Study on Electricity Utilization Rules of Light Sockets in Governmental Office Buildings in Chongqing Yong Ding; Donglin Zhang; Baizhan Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper is based on the energy consumption monitoring platform of the office buildings and large-sized public buildings of the state organs in Chongqing. The writer selected one office building with complete set of data and normal operation as the case building to analyze electricity for lighting sockets in the building and find out the rule and features of electricity utilization. In addition, we selected 5 buildings to demonstrate the rule and compared the results with the standard plants. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4457
Bearing Fault Diagnosis Method Using Envelope Analysis and Euclidean Distance Haiping Li; Jianmin Zhao; Xinghui Zhang; Hongzhi Teng; Ruifeng Yang; Lishan Hao
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Bearings are widely used in rotating machines. Its health status is a significant index to indicate whether machines run continually or not. Detecting the bearing faults timely is very important for the maintenance decision making. In this paper, a new fault diagnosis method based on envelope analysis and Euclidean Distance is developed. Envelope analysis is used to enable the fault frequencies clearly. Then, amplitudes of fault frequencies are used as the fault features. Finally, Euclidean Distance is used to identify the different fault types. This method can identify the fault locations intelligently even if the bearings are under different fault levels. The effectiveness of this methodology is demonstrated using the bearing data sets of Case Western Reserve Univerity. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4186
Design and Analysis Unified Resource Management Platform of Grid Dispatching System Based on Virtualization Technology Ji Zhixiang; Yuan Rongchang; Li Lixin; Di Fangchun; Xie Tao; Dai Jiao
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

As the command center of Strong Smart Grid, the safe and stable operation of the power grid dispatching automation system is the firm guarantee of electric power supply. And dispatching platform is the foundation platform of the power grid dispatching automation system. To make full use of the computing resources and enhance the availability and flexibility of system, this paper puts forward the construction of uniform resource management platform for power grid dispatching automation system based on virtualization technology, thus to provide required computation, storage, network and other resources. With the introduction of virtualization technology including server virtualization, storage virtualization, network virtualization and other technologies, and the construction of corresponding resource pool, the paper designs uniform resources management platform based on virtualization technology and provides new architecture for power grid dispatching automation system. The new system can allocate  and dispatch the resources as a whole, thus to enhance the availability and flexibility of system and realize on-demand allocation and high efficient utilization of resources. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4569
Research and Implementation of PLC Editor System Qingchao Wei; Qizhong Cai; Congse Xie
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

According to the new type of portable PLC programming device adopting the own invention technology, a PLC editor system with ARM microprocessor and μC/OS-II system as the core was constructed. Logic operation instructions with multiple operands and their encodes were designed. The data storage capacity was expanded. A CAN extension protocol was formulated. Two-way chain table was adopted to edit PLC source instruction file dynamically, and the file was compiled to a binary object code file. According to CAN extension protocol format the object code file was encoded and sent to PLC host via CAN Bus. The results show that the system improves editing efficiency and the running speed of PLC host. Many sets of source instruction files’ storage, PLC source instruction file compiled accurately, the highly reliable communication and monitoring PLC host are implemented. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4424
Aircraft’s U-turn Maneuvers applied in 3-Dimensional scene driven Jiening Wang; Jiang Qu; Mei Dong
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

U-turn maneuver is a special taxiing behavior on the ground. This paper studied the behavior and aimed to research the problem of position and attitude during the movement. From the perspective of airport tower control simulation, the calculation methods that the aircraft did U-turn maneuver under the nonholonomic constraints were proposed. According to the real geometrical constraints and kinematic equations, a method, suitable for simulation, deduction and calculation, was designed. At last, with the help of MATLAB, the validity of this method was confirmed. Compared with dynamics model, this method was easy to be computed and more suitable for the application to scene driven. This paper, moreover, designed the structural frame of 3D scene driven for the tower control simulation. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4495
A Multicriteria Selection Model for Developing New Color Calibration Device Ying-Chieh Fang; Chiuh-Cheng Chyu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Color Calibration Device is a key component for the performance of Medical Display Monitor (MDM). MDMs have been extensively used in hospitals in the past decades. The technological requirements of MDMs are higher than those of general purpose display monitors, but the gross profit margins of MDMS are larger as well. The purpose of this research is to build a hybrid multiple criteria decision making (MCDM) model useful in developing new color calibration device for the MDM industry. The proposed MCDM model uses fuzzy Kano method to filter the performance criteria, and then apply the analytic network process (ANP) in selecting the best alternative among three new products. In this study, gray relation analysis (GRA) is used to build a relations-structure for ANP criteria. The paper also presents a case study on model implementation in a LCD high-tech company. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4799
A Novel Battery Equalizer for Plug-in Hybrid Electric Vehicle Yi-Fan Zhao; Fu-Wu Yan; Chang-Qing Du
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 3: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In order to meet cost targets for hybrid electric (HEV), Plug-in hybrid electric (PHEV), and all-electric vehicles (EV), an improvement in the battery life cycle and safety is essential. One practical approach to improve performance is to use power electronics intensive cell equalizer, in conjunction with on-board energy storage devices. A new technique based on buck-boost topology to equalize a series-connected battery stack on PHEV is proposed in this paper. The proposed scheme transfers the energy from fully charged cell to the weaker charged cell. Unlike previous battery equalizing schemes was based on terminal voltage, the proposed scheme is based on the THEVENIN model parameters, resulting more precisely and more available energy. Experiment results are provided to verify the operation of proposed battery equalizer with characters as the following: low cost; high equalizer current and high efficiency. DOI : http://dx.doi.org/10.11591/telkomnika.v12i3.4374

Page 4 of 11 | Total Record : 103

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