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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 80 Documents
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Search results for , issue "Vol 11, No 5: May 2013" : 80 Documents clear
Direction Identification System of Garlic Clove Based on Machine Vision Gao Chi; Gao Hui
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In order to fulfill the requirements of seeding direction of garlic cloves, the paper proposed a research method of garlic clove direction identification based on machine vision, it expounded the theory of garlic clove direction identification, stated the arithmetic of it, designed the direction identification device of it, then developed the control system of garlic clove direction identification based on machine vision, at last tested the garlic clove direction identification, and the result of the experiment certificated that the rate of garlic clove direction identification could reach to more than 97%, and it demonstrated that the research is of high feasibility and technological values. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2456
Raman Slow Light in Distributed Raman Fiber Sensors Dapeng Wang; Ning Li; Aimei Yan; Yingxin Xie; Fengyu Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Distributed Raman sensor offers a number of advantages to the implementation of smart grid, which is aimed to improve reliability and energy efficiency as compared with traditional power grid. However, the fantastic properities of slow light are rarely considered in the former studies on the Raman sensor systems. In this paper, the effects of Raman slow-light on room-temperature single-mode optical fiber sensors are examined by extracting the Raman pulse-delay terms from extended nonlinear Schrodinger equation (NLSE). Numerical study shows that pulse parameters such as pulse position, frequency chirp, and envelope distortion may be greatly affected by slow light. Two important points of pump power are show clearly keeping the Raman pulse zero walk-off or chirp free, respectively. We demonstrate a method based on pump power adjustment for compensating the slow light induced impairment. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2472
Efficient Train Driver Drowsiness Detection on Machine Vision Algorithms Zhui Lin; Lide Wang; Jieqiong Zhou; Liyuan Liu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In order to give a warning to the drowsy driver, this paper proposes a new Fatigue Driving Detection Algorithm. AdaBoost algorithm is applied to fast detect and track human faces, and the algorithm is implemented in FPGA; differential template-based multi-algorithms are used to localize human eyes and recognize eye states; PERCLOS algorithm is adopted to analyze and determine whether a person is fatigue. Test is implemented based on DM368 add FPGA platform ,and confirms that the algorithm used in the paper can quickly and accurately locate the face and the human eye, and determine the status of the driver's fatigue. Experimental results show that the algorithm has high recognition accuracy and robust performance under real train driving environment, even in head rotation, eye movements and wearing glasses was the case. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2488
Low Cost Quasi Binary Weighting Addition Log-SPA LDPC Decoders Po-Hui Yang; Ming-Yu Lin
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a new addition method, which can be applied to reduce the hardware cost of LDPC decoders using log-SPA, which traditionally has the best lowest bit error rate (BER) but the highest hardware requirement. The proposed quasi-binary weighting addition can be simply implemented by OR gates. With auxiliary pseudo-carry circuit, the BER performance can reach a fair level. In the log-SPA message-passing path, numeric transform reduction architecture is proposed for further hardware reduction. Synthesized and numerical results show that the new proposed architecture achieved an up to 32% and 18% total hardware reduction, compared with traditional log-SPA decoders, and the simplest sign-min architecture, respectively, with fair BER performance. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2505
Bi-Level Multi-criteria Multiple Constraint Level Optimization MODELS and Its Application Lei Zhao; Liehui Zhang; Yihua Zhong; Yilin Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Because oil field development system is a large hierarchical and uncertain system, this paper uses the theory of bi-level programming and multi-criteria multiple constraint level  to formulate a new oilfield measure structural optimization model which is bi-level multiple objectives and multiple constraint level nonlinear programming, and present a new method to solve the bi-level programming whose lower is multiple objectives nonlinear programming, whose upper is linear programming. The result of this model not only may feed back to the comprehensive information of measures output distribution optimization to decision-makers as a whole, but also can provide decision makers oil field exploitation contingency planning to deal with changed resource constraint level. The case study shows that the result fitting calculation by the model is coincide with the historical data of oil field, the model is correct and effective. Moreover this research may provide a reliable new method for oil field development optimal decision-making. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2558
Disaster Rescue Simulation based on Complex Adaptive Theory Feng Jiang; Liangtu Song; Yida Fan; Wenbo Li; Jie Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Disaster rescue is one of the key measures of disaster reduction. The rescue process is a complex process with the characteristics of large scale, complicate structure, non-linear. It is hard to describe and analyze them with traditional methods. Based on complex adaptive theory, this paper analyzes the complex adaptation of the rescue process from seven features: aggregation, nonlinearity, mobility, diversity, tagging, internal model and building block. With the support of Repast platform, an agent-based model including rescue agents and victim agents was proposed. Moreover, two simulations with different parameters are employed to examine the feasibility of the model. As a result, the proposed model has been shown that it is efficient in dealing with the disaster rescue simulation and can provide the reference for making decisions. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2467
Train Schedule Adjustment Strategies for Train Dispatch Huaqing Mao; Zhu Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Train schedule adjustment is the identity of key components of Train Dispatch System. Manually arranging the time table is a time-consuming and error-prone process. In this work, we mainly discuss three strategies of train schedule adjustment in train dispatch. First, we propose a new algorithm to calculate the maximum traffic capacity of freight-train in Beijing-Shanghai railway. We use a VMM (Vacancy Maximum Matching) grid to find the vacancy time table of freight-train base on the passenger train schedule, and solve the possible time sequence of freight-train by searching the bottleneck of freight-train traffic capacity. Second, we study the special circumstances in China when the spring transport or the Golden Week comes. It is necessary to put on extra passenger trains, and in order to arrange the extra passenger trains, we set up a double objective model, and the experiment shows that all the extra passenger trains arrive at the terminus within 20 hours. Finally, for the speed raising adjustment or train reschedule, we propose the SIA (Schedule inherited adjustment) algorithm to reschedule the freight-train time table. We compare the results of the SIA algorithm with that of the regular method, and find that the SIA leads to better results. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2483
Research on Obstacle Recognition for UUV Based on Multi-beam Forward Looking Sonar LIN Fei-yu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Obstacle recognition is one of the key technologies for Unmanned Undersea Vehicle (UUV). In this paper, the design of obstacle recognition based on multi-beam forward looking sonar is presented. First of all, Gaussian mixed model operator is adopted in adaptive threshold segmentation to segment the sonar image into regions of interest and background. Secondly, we use morphological  operation to remove noise and pseudo-target in the image. At last, obstacle contour is fitted into an ellipse using least squares method and then we calculate minimum and maximum distance, maximum and minimum azimuth angle between obstacle and multi-beam forward looking sonar. Results obtained on real sonar data are shown and discussed. Our experimental results show that the way can obtain accurate obstacle distance and azimuth angle information. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2500
Patent Evaluation Technology used in Automobile Steering Product Development Jun CHEN; He HUANG
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Automobile steering product development is based on the research basis. By using the existing patent technology as an example is one of the effective ways to realize rapid product development. In this article, through similarity algorithm, the patent technology of car steering screening was selected, and then through the Analytic Hierarchy Process, the patent technology was analyzed to find the most suitable product development, and examples for the development of automobile steering products were provided. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2552
Variable Weights in Assessment of Survival System Jinhui Zhao
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Weight is one of key parameters in survival assessment. Its veracity will directly affect the final evaluation result. After analyzed the relationships between survival incidents and induced factors, this paper draw into the natural weight, based on impact probability, to dynamically calculate the weights of assessment indexes. Based on membership of susceptible degree, appropriate distribution function is selected to describe the weight change of specific index. Combined with examples, the application process is present in detail. Experiments and analysis show that proposed method can truthfully and objectively reflect the impact of each index on survival system．It is valuable to apply and popularize in a variety of industries. http://dx.doi.org/10.11591/telkomnika.v11i5.2138 

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