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Service Engineering Based on Service Oriented Architecture Methodology

10.12928/telkomnika.v13i4.2388
Suhardi; Institute of Technology Bandung Suhardi , Robin; Deakin University Doss , Purnomo; Deakin University Yustianto
Service Engineering (SE) and Service Oriented Architecture (SOA) originally reside on different plateaus of discipline. SE is defined as a set of activity introducing a new business service, while SOA is a technical approach to redefine an enterprise business processes as a set of IT enabled services. This paper proposes a SOA embedded SE framework as a comprehensive approach in re-defining business service and its IT implementation. After an introduction, a review of existing SE frameworks and SOA methodologies is presented in the paper. Afterward, a complete SE framework is proposed with several results on early case studies. A survey results are then presented to prove the usability and benefit of the proposed framework. The framework is designed and proposed to help practitioners and researchers to conduct service engineering by employing principles and methodology offered by SOA approach.
Volume: 13
Issue: 4
Page: 1466-1477
Publish at: 2015-12-01

Biogeography Based Optimization Tuned Fuzzy Logic Controller to Adjust Speed of Electric Vehicle

10.11591/ijeecs.v16.i3.pp509-519
Salam Waley , Chengxiong Mao , Nasseer K. Bachache
There are many power electronic converters and motor drives connected together to form the electrical system of an Electric Vehicle. In this paper, we have presented a modeling tool that has the advantages of utilizing capabilities of the PMSM software in detailed simulations of converters, motor drives, and electric machines. In addition, equivalent electrical models of Electric Vehicle drive system. This paper also gives a brief idea of PMSM validity as an Electric Vehicle simulation tool. PMSM drive system is described and analyzed due to its importance in many applications especially in Electric Vehicle applications. Applications due to their high efficiency, low inertia and high torque to volume ratio. In this paper we embody the simulation of Fuzzy Logic Controller. The controller govern the speed control of Electrical Vehicle EV using permanent magnet synchronous motor PMSM. This work characterizes to obtain the optimal parameters of FLC. Biogeography Based Optimization (BBO) is a new intelligent technique for optimization; it can be used to tune the parameters in different fields. The main contribution of this work efforts the ability of BBO to design the parameters of FLC by determining the shapes of triangle memberships of the inputs and output. The results of optimal controller (BBO-FLC) compared with the other controllers designed by Genetic Algorithm GA which it is a powerful method has been found to solve the optimization problem. The implementation of BBO algorithm has been done by M-file/Matlab, this program linked with SIMULINK to calculate the finesses function which has the complete mathematical system model has implemented using. The results show the excellent performance of BBO-FLC compared with GA-FLC and PI controller, also the proposed method was very fast and need a few number of iterations. These results also confirmed that the transient torque and current never exceed the maximum permissible value.
Volume: 16
Issue: 3
Page: 509-519
Publish at: 2015-12-01

Cost Analysis of Hybrid Restructuration for Distribution System to Improve Voltage and Minimize Losses

10.11591/ijeecs.v16.i3.pp431-438
Firas M.F Flaih , Lin Xiangning , Samir M. Dawoud , Mohammed R. Almallah
Current situation in Iraq had led to extensive blackouts which needs an expansion in generation capacity. On the other hand the government has reduced the budget allocated for energy resource development and it seems this situation will sustain for the coming years.  So the fulfilment of the load demand is the biggest challenge for the ministry of electricity with limited budget. In this paper the authors have proposed a method to reduce the power losses and therefore improve the voltage profile for low voltage (LV) distribution system that results in reduction of blackouts. The method involves the repositioning of the distribution transformer (DTR) from the existing location and the replacement of the overhead conductor cross section area for an existing low voltage distribution system (LVDS). This method has been applied to a 20-node low voltage radial distribution network in the general directorate of north distribution electricity (GDNDE), Iraq, where voltage profile and losses are unsatisfactory. Results demonstrate the effectiveness of the proposed method also in terms of the economic feasibility. It is observed that the system average voltage profile is improved by 15%, tail end voltage enhanced by 19.7% and losses are reduced by 78% for existing the LVDS.
Volume: 16
Issue: 3
Page: 431-438
Publish at: 2015-12-01

An Interactive Mobile Augmented Reality for Tourism Objects at Purbalingga District

10.11591/ijeecs.v16.i3.pp559-564
Imam Tahyudin , Dhanar Intan Surya Saputra , Haviluddin Haviluddin
This paper presents the development of an interactive mobile Augmented Reality (AR) for tourism promotion with eXtreme programming (XP) at Purbalingga district, Central Java that has many places of tourist attractions such as Owabong, Purbasari Pancuran Mas, Sanggaluri Park and Buper Munjuluhur. By applying the AR concept it is expected the tourism objects could be enhanced by augmenting the virtual brochures which could be viewed over a mobile device. In this study, mobile device Android platform is used to display interactive brochures of tourism promotion containing 3D models, animations, and sounds. The brochure will provide information in of real attractions of the tourism objects in the Purbalingga district.
Volume: 16
Issue: 3
Page: 559-564
Publish at: 2015-12-01

Combining Fuzzy Logic and Dempster-Shafer Theory

10.11591/ijeecs.v16.i3.pp583-590
Andino Maseleno , Md. Mahmud Hasan , Norjaidi Tuah
This research aims to combine the mathematical theory of evidence with the rule based logics to refine the predictable output. Integrating Fuzzy Logic and Dempster-Shafer theory by calculating the similarity between Fuzzy membership function. The novelty aspect of this work is that basic probability assignment is proposed based on the similarity measure between membership function. The similarity between Fuzzy membership function is calculated to get a basic probability assignment. The Dempster-Shafer mathematical theory of evidence has attracted considerable attention as a promising method of dealing with some of the basic problems arising in combination of evidence and data fusion. Dempster-Shafer theory provides the ability to deal with ignorance and missing information. The foundation of Fuzzy logic is natural language which can help to make full use of expert information.
Volume: 16
Issue: 3
Page: 583-590
Publish at: 2015-12-01

An Automatic Calibration Method for Near-infrared Camera in Optical Surgical Navigation

10.12928/telkomnika.v13i4.3103
RongQian; South China University of Technology Yang , Xuan; South China University of Technology Si , QinYong; South China University of Technology Lin , Ken; Zhongkai University of Agriculture and Engineering Cai
Optical surgical navigation system (SNS) with near-infrared tracking system is becoming extensively used in clinics, and the accuracy of SNS is influenced by the calibration of near-infrared cameras (NIRCs). We propose an automatic calibration method for NIRCs. The method is based on a designed calibration board. In our experiments, corners are automatically extracted to obtain the parameters of NIRCs. This method has the advantages of saving time, efficiency in computation, high accuracy, and reliability. In our experiments, an NIRC can be calibrated in only 5 s. Meanwhile, the average relative errors of the focal length and principal point are 0.87% and 1.39%, respectively.
Volume: 13
Issue: 4
Page: 1289-1297
Publish at: 2015-12-01

Distinguish Sea Turtle and Fish Using Sound Technique in Designing Acoustic Deterrent Device

10.12928/telkomnika.v13i4.1827
Azrul; Politeknik Sultan Hj Ahmad Shah Mahfurdz , Sunardi; Universitas Ahmad Dahlan Sunardi , H.; Universiti Malaysia Pahang Ahmad , Syed; Turtle and Marine Ecosystem Center (TUMEC) Abdullah , Nazuki; Turtle and Marine Ecosystem Center (TUMEC) Nazuki
Acoustic is a common method for underwater object classification and to observe fish schools or other marine animals in their environment, but it was never applied on sea turtle. Knowledge about turtle detection using sound is very limited and there are no target strength (TS) recorded before. In this study, an echo voltage reference methodincorporating standard target was used to measure ex situ target strength of two Green Turtle (Chelonian mydas) and three species of fish (Indian scad, Indian Mackerel and Bigeyescad). The echo signal of animals has been observed from echosounder output and every envelope of the echo was digitized at a sampling rate 1MHz using high speed analog to digital converter (USB‑1208HS). The finding shows a significant difference between fish and turtles aged 18 years old. The result also demonstrates that TS increase as age of turtle increase. This result is considered important in designing an acoustic deterrent device. The result reveals that size, surface, and animal body part influence in determining target strength value.
Volume: 13
Issue: 4
Page: 1305-1311
Publish at: 2015-12-01

Image Restoration Based on Hybrid Ant Colony Algorithm

10.12928/telkomnika.v13i4.1900
Yan; Hunan University of International Economics Feng , Hua; Hunan University of International Economics Lu , Xiliang; Hunan University of International Economics Zeng
Image restoration is the process to eliminate or reduce the image quality degradation in the digital image formation, transmission and recording and its purpose is to process the observed degraded image to make the restored result approximate the un-degraded original image. This paper, based on the basic ant colony algorithm and integrating with the genetic algorithm, proposes an image restoration processing method based on hybrid ant colony algorithm. This method transforms the optimal population information of genetic algorithm into the original pheromone concentration matrix of ant colony algorithm and uses it to compute the parameters of degradation function so as to get a precise estimate of the original image. By analyzing and comparing the restoration results, the method of this paper can not only overcome the influence of noises, but it can also make the image smoother with no fringe effects in the edges and excellent visual effects, verifying its practicability.
Volume: 13
Issue: 4
Page: 1298-1304
Publish at: 2015-12-01

Research on Electromagnetic Excitation Resonant Sensor Based on Microelectromechanical System

10.12928/telkomnika.v13i4.1740
Gang; Heilongjiang University Li , Xiaofeng; Heilongjiang University Zhao , Dianzhong; Heilongjiang University Wen , Yang; Heilongjiang University Yu
In this paper, an electromagnetic excitation resonant sensor was designed based on Microelectromechanical system (MEMS) technology. In this new sensor, four nc-Si/c-Si heterojunction p-MOSFETs are manufactured by using the technique of MEMS on the N-type orientation high resistance silicon wafer, and a Wheatstone bridge is composed of four nc-Si/c-Si heterojunction MOSFETs channel resistances, output voltage of the bridge circuit changes according to the applied pressure. A vibration will be generated when an alternating current is applied to the inductance coil of electromagnetic excitation resonant sensor, the maximum power produced in the central part of the four edges of silicon membrane, whose frequency and amplitude are associated with the current in the inductance coil, and the applied pressure P can be detected. Using mechanics and electromagnetism coupling field analysis by Ansys software, the simulation to vibration situation of the silicon membrane of sensor was carried on when vertical magnetic field and alternating current were loaded. Experimental results show that, as the operating voltage is constant, with the increase of current in the inductance coil the conversion of applied pressure increases, and the output voltage of nc-Si/c-Si heterojunction MOSFETs pressure sensor is proportional to the increase of coil magnetic field i.e. the increase of pressure, the experimental results are consistent with the simulation results.
Volume: 13
Issue: 4
Page: 1121-1126
Publish at: 2015-12-01

Computing Game and Learning State in Serious Game for Learning

10.12928/telkomnika.v13i4.2248
Ririn Dwi; Institut Teknologi Bandung Agustin , Ayu; Institut Teknologi Bandung Purwarianti , Kridanto; Institut Teknologi Bandung Surendro , Iping; Institut Teknologi Bandung S Suwardi
In order to support the adaptive SGfL, teaching materials must be represented in game component that becomes the target of adaptivity. If adaptive architecture of the game only use game state (GS) to recognize player's state, SGfL require another indicator -learning state (LS)- to identify the learning progress. It is a necessary to formulate computational framework for both states in SGfL.The computational framework was divided into two moduls, macro-strategy and micro-strategy. Macro-strategy control the learning path based on learning map in AND-OR Graph data stucture. This paper focus on the Macro-strategy modul, that using online, direct, and centralized adaptivity method. The adaptivity in game has five components as its target. Based on those targets, eight development models of SGfL concept was enumerated. With similarity and difference analysis toward possibility of united LS and GS in computational framework to implement the nine SGfL concept into design and application, there are three groups of the development models i.e. (1) better united GS and LS, (2) must manage LS and GS as different entity, and (3) can choose whether to be united or not. In the model which is united LS with GS, computing model at the macro-strategy modul use and-or graph and forward chaining. However, in the opposite case, macro-strategy requires two intelligent computing solutions, those are and-or graph with forward chaining to manage LS collaborated with Finite State Automata to manage GS. The proposed computational framework of SGfL was resulted from the similarity and difference analysis toward all possible representations of teaching materials into the adaptive components of the game. It was not dependent of type of learning domain and also of the game genre.
Volume: 13
Issue: 4
Page: 1422-1436
Publish at: 2015-12-01

Routing Algorithm Based on Area Division Management of Node in Wireless Sensor Networks

10.12928/telkomnika.v13i4.1895
Gao; Mudanjiang Normal University Wei , Song; Mudanjiang Normal University Yan , Shuping; Mudanjiang Normal University Fan
In order to reduce the communication overhead among sensor nodes, a routing algorithm is proposed based on zoning management nodes. The algorithm defines the calculation method of the network partition radius after nodes deployment, and divides monitored area according to the radius meanwhile layouts one management node in each partition. Then nodes’ communication cost is calculated based on the distance among nodes as well as nodes’ energy, and finishes the selection of routing nodes based on the cost. Finally, using the Matlab simulation environment, the parameters impacting the optimal partition radius are discussed, and the proposed routing algorithm is compared with existing algorithms. Theoretical analysis and experimental results show that the proposed algorithm is more balanced on nodes energy consumption. The algorithm reduces network traffic overhead while extends the lifetime of the network.
Volume: 13
Issue: 4
Page: 1214-1224
Publish at: 2015-12-01

Correlation of Student’s Precursor Emotion towards Learning Science Interest using EEG

10.12928/telkomnika.v13i4.2737
Norzaliza; Kulliyyah of Information & Communication Technology Md Nor , Abdul Wahab; Kulliyyah of Information & Communication Technology Bar , Sheikh Hussain; Universiti Teknologi Malaysia Shaikh Salleh
Mathematics and science are two important subjects for students to do well in school. Unfortunately majority of the students are having difficulties in coping with these subjects. Malaysia is ranked third lowest in the Program for International Student Assessment (PISA) for mathematics and science. An emotionally disturbed student seems to have problem coping with the learning of mathematics and science thus it is important to identify the demotivating factors affecting the performance of such students. In this paper, it analyze the correlation of precursor emotion towards student interest in learning mathematics and science using electroencephalogram (EEG) device. This correlation and their respective emotion can be analyzed based on the 2-D Affective Space Model (ASM) using four basic emotions of happiness, calmness, fear and sadness as reference stimuli. EEG device was used to extract brain waves signal while answering the mathematics and science questions. The EEG signals were captured on the scalp of the student and features extracted using Mel Frequency Cepstral Coefficient (MFCC). Neural network classifier of Multilayer Perceptron (MLP) was used to classify the valence and arousal axes for the ASM. Preliminary results show the relationship of precursor emotion and the dynamic emotions of the student while taking the mathematics and science test. We hope that these results can help us further relate the behavior and interest of students towards the learning of mathematics and science.
Volume: 13
Issue: 4
Page: 1162-1169
Publish at: 2015-12-01

Dynamic Stability Improvement of Multimachine Power Systems using ANFIS-based Power System Stabilizer

10.12928/telkomnika.v13i4.2049
Agung Budi; Mataram University Muljono , I Made; Mataram University Ginarsa , I Made Ari; Mataram University Nrartha
Modern power system are very vurnerable to against load fluctuation during their operation. Load fluctuation identified as small disturbance is important to test dynamic (small signal) stability. This research is focused on improvement of multimachine dynamic stability by using ANFIS-based power system stabilizer (proposed PSS). ANFIS method is proposed because the ANFIS computation is more efective than Mamdani fuzzy computation. Simulation results show that the proposed PSS is able to maintain the dynamic stability by decreasing peak overshoot (Po) to the value -3,37´10-5 pu/pu and accelerating settling time (St) to the time 4.01 s for rotor speed deviation Machine-2. Also, the Po is decreased to the value -3,37´10-5 pu/pu and the St is accelerated to the time 3.98 s for rotor speed deviation Machine-3.
Volume: 13
Issue: 4
Page: 1170-1178
Publish at: 2015-12-01

Tissue-like P system based DNA-GA for clustering

10.11591/ijeecs.v16.i3.pp565-573
Caiping Hou , Xiyu Liu
In recent years, DNA GA algorithm is drawing attention from scholars. The algorithm combines the DNA encoding and Genetic Algorithm, which solve the premature convergence of genetic algorithms, the weak local search capability and binary Hamming cliff problems effectively.How to design a more effective way to improve the performance of DNA-GA algorithm is more worth studying. As is known to all,the tissue-like P system can search for the optimal clustering partition with the help of its parallel computing advantage effectivel. This paper is under this premise and presents DNA-GA algorithm based on tissue-like P systems (TPDNA-GA) with a loop structure of cells, which aims to combine the parallelism and the evolutionary rules of tissue-like P systems to improve performance of the DNA-GA algorithm. The objective of this paper is to use the TPDNA-GA algorithm to support clustering in order to find the best clustering center.This algorithm is of particular interest to when dealing with large and heterogeneous data sets and when being faced with an unknown number of clusters. Experimental results show that the proposed TPDNA-GA algorithm for clustering is superior or competitive to classical k-means algorithm and several evolutionary clustering algorithms.
Volume: 16
Issue: 3
Page: 565-573
Publish at: 2015-12-01

Current Ripple Analysis of New Double-Stator AC Drive Systems

10.12928/telkomnika.v13i4.3165
Irham; Universitas Negeri Malang Fadlika , A. N.; Universitas Negeri Malang Afandi , Pekik Argo; Institut Teknologi Bandung Dahono
This paper presents a current ripple analysis of new double-stator AC drive system. At first, a new double-stator AC drive system is proposed. The aim is to combine the benefits both the multilevel and multiphase system to provide the better performance to drive AC motor. The input and output current ripples of the proposed AC drive system are then analyzed. The current ripples of the proposed AC drive system are then compared to the ones of conventional double-stator AC drive system. Under the same DC input voltage, it is shown that the proposed results in less output current ripple. Under the same output voltage, the proposed AC drive system results in smaller input current and, therefore, fewer losses on the DC power supply. Experimental results are included to show the validity of the proposed concept.
Volume: 13
Issue: 4
Page: 1204-1213
Publish at: 2015-12-01
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