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Journal receives papers in continuous flow and we will consider articles from a wide range of Information Technology disciplines encompassing the most basic research to the most innovative technologies. Please submit your papers electronically to our submission system at http://jatit.org/submit_paper.php in an MSWord, Pdf or compatible format so that they may be evaluated for publication in the upcoming issue. This journal uses a blinded review process; please remember to include all your personal identifiable information in the manuscript before submitting it for review, we will edit the necessary information at our side. Submissions to JATIT should be full research / review papers (properly indicated below main title).

Journal of Theoretical and Applied Information Technology
April 2013 | Vol. 50 No.3

Title:	THE IMPACT OF INFORMATION SYSTEM SUCCESS ON BUSINESS INTELLIGENCE SYSTEM EFFECTIVENESS
Author:	ABDALLAH S.A SHATAT, DR. ZAWIYAH MOHD YUSOF, JUZAIDDIN ABD AZIZ
Abstract:	Business environment has become increasingly complex, along with the rapid development of economic globalization and information technology. organizations have to understand business intelligence (BI) system by showing information system success factors such as: system quality, information quality and service quality. Many organizations implemented BI system since there are a set of factors which influenced the success of the information system. The aim of this study is to investigate the relationship between information system success and BI system effectiveness in Jordanian banks. The study aims to promote better understanding of the benefits of the BI system that would be contributed toward enhancing BI system effectiveness. This paper used a quantitative methodological approach. 500 questionnaires were distributed to bank employees in Jordan with BI system in place. The returned and valid questionnaires were 386. data analysis showed there is a positive and significant relationship between information system success and BI system effectiveness.
Keywords:	Business Intelligence System, System Quality, Information Quality And Service Quality.
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	SEMANTIC META SEARCH ENGINE USING SEMANTIC SIMILARITY MEASURE
Author:	A.K.MARIAPPAN, Dr.R.M.SURESH, Dr.V.SUBBIAH BHARATHI
Abstract:	Many people use search engines to find their requirements on the web. But, research showed that each search engines covers some parts of the web. Therefore, Meta search engines are invented to combine results of different search engines and increase web search effectiveness due to a larger coverage of indexed web. Additionally, given query should be more specific to retrieve the more relevant web pages. By considering all these factors, semantic Meta search engine is proposed using semantic similarity measure that refines the input query in a more specific way. Initially, query given by the user is input to Wordnet ontology to obtain the neighbor keywords. Then, the query and neighbors are given to semantic similarity measure to choose the most suitable query words. Then, the selected query is given to different search engine like Google, Bing and Yahoo. After retrieving web pages from the web, the ranking of those pages are carried out using the ranking measure. Finally, the experimentation is carried out to prove the efficiency of the semantic Meta search engine using precision, recall and F-measure.
Keywords:	Meta Search Engine, Similarity Measure, Wordnet Ontology.
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ANALYSES THE INFORMATION TECHNOLOGY DEVELOPMENT TRENDS AND THE ENLIGHTENMENT OF THE LIBRARY CONSTRUCTION
Author:	HAIBIN ZHANG, JING ZHAO, LIANGXIAN DU
Abstract:	The library construction level is an important indicator of society civilization improve degree, is an important position for building a learning society, is the hall for people cultivate sentiments and increase learning knowledge, is an important basis for the construction of public cultural service system facilities, is an important way for all levels of government to protect their cultural rights and interests of the masses of the people. Network technology and computer technology, such modern information technology progress makes network dissemination of information began to reach unprecedented depth and breadth. As the spread of information resources and the storage institution, the library should play their own characteristics and functions effectively in the dissemination of information process, constantly keeping pace with the times, constantly to speed up the pace of information transmission, which can better service to the society and the reader, enhance their the competitiveness in the information age. With the rapid development of modern science and technology, more and more attention has been paid to the humane care and people-oriented concept, advanced technology influence and effect in library services and process in good performance. In the library work practice process that reflects the people-oriented design concept can satisfy people's demand, realize the value of people, pay attention to the humanistic care, the efficient implementation of the users, librarians and library, is the important development of modern society library construction requirements. This paper mainly discusses the development of information technology, dynamic and library construction related enlightenment, etc.
Keywords:	Information Technology; Development Trends; Library Construction
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ANALYSIS ON THE APPLICATION OF MODERN MANUFACTURING-ORIENTED CAD/CAM
Author:	JIAN KONG, YANLIANG SONG
Abstract:	In recent years, CAD/CAM has been extensively applied in global machinery with the rapid development of computer technologies. Due to the technical application of CAD/CAM in manufacturing industry, enterprises have gradually changed their traditional approaches to design and manufacture products. Meanwhile, qualitative changes begin to occur to the production process and control pattern. Hence, CAD/CAM slowly becomes fundamental for the development of modern manufacturing enterprises. In fact, modern CAD/CAM refers to a design technique and theory which effectively support the automatic design of products with the impacts of a complicated system. CAD/CAM needs to be constantly improved and developed from various perspectives pertinent to technological advancement such as design tools and environment, etc, in order that the design can become intelligent, network-based and integrated rapidly, to promptly meet the requirements for product design, reduce production costs, shorten the product design period as far as possible and improve the efficiency of product design in modern manufacturing. This paper focuses on demonstrating the concept of CAD/CAM, formation of modern manufacturing-oriented CAD/CAM, corresponding research contents, the application of CAD/CAM in modern manufacturing industry and development of modern CAD/CAM and so on.
Keywords:	Modern Manufacturing, CAD/CAM, Application
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	DISCUSSION ON EFFECTS OF MODERN INFORMATION TECHNOLOGY ON UNIVERSITY LIBRARIES
Author:	JINGTAO MA, JING ZHAO, JUNMEI ZHU
Abstract:	On the background of effects of information technology on operations of University libraries, grasp the steps of library circulation management industry, timely take measures to manage the circulation comprehensively, rapidly and properly uses the individual advantages of intelligence, convenience and integration of network platform. Expand the ways to circulate. Stably improve the qualities and practical levels of staffs. Finally realize the harmonious win between improvement of management system and social benefits.
Keywords:	Modern Information Technology, University Library Management, Circulation Explosion, Specific Effect, Available Countermeasure
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ON THE APPLICATION OF BLIND SOURCE SEPARATION ALGORITHM IN SPEECH SEPARATION
Author:	NIQIN JING
Abstract:	Blind source separation technology refers to the process for observing the recovery of source signals by mixed signals through statistical analysis on the characteristics of source signals under the situation that the source signals and signal transmission signals are unknown, which is applied in many fields, particularly used extensively in processing speech signals, array signals, images and medical signals, etc. It is pretty important for separating speech signals, regarded as a key technology in current research field of speech signals. This paper plainly studied the blind source separation, including technical status quo and development as well as principles of blind source separation technologies and solutions, etc. Meanwhile, it roughly introduced the application of separation algorithm in processing digital signals. In particular, the feasibility of the algorithm was validated by analyzing basic theories and simulating speech signals. Moreover, this paper examined the effect of separation algorithm when it was practically used for blind source separation of speech signals.
Keywords:	Blind Source Separation, Speech Signals, Separation Algorithm
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	STUDY OF INTELLIGENT DIAGNOSIS TECHNOLOGY FOR BUILDING ELECTRICAL TEST SYSTEM
Author:	XIAOWEN DING, QINGWEI CHEN, BOXIN LU
Abstract:	Intelligent building mainly utilizes the energy instruments to conduct relative effective management, which helps rapidly improve the comfort of usage, prolong the lifetime, improve the efficiency and reduce the energy consumption as possible as it could. Its situation and management will have direct effects on building operation. Improving the completion of management and using advanced scientific intelligent system becomes a powerful tool to improve the comfort and prolong the lifetime gradually. To different analysis views, classifications, and objects, the methods are different. So the preparation for detailed diagnosis process is essential. This paper discusses the diagnosis process for building electrical test system, thinking in building diagnosis system and optimal methods, etc.
Keywords:	Building Electricity; Test System; Intelligent Diagnosis Technology
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	STUDY OF SUSTAINABLE DEVELOPMENT OF INFORMATION TECHNOLOGY AND LIBRARY
Author:	JIE YU, JING ZHAO, HAIBIN ZHANG
Abstract:	To our traditional library management, pursuing small and comprehensive library blindly or big and comprehensive one, which makes amounts of waste. In information society, people have varied requirements. To meet their requirements, library must positively develop more resources, positively organize the online Chinese information resources, provide effective online video service, greatly cultivate our fine cultural tradition and enhance combination between international advanced network technology and Chinese Characteristic information resources. This paper mainly discusses the problems existing in traditional library construction, application of information technology, effects of information technology on library management mode and its effects on sustainable development of library, etc.
Keywords:	Information Technology, Library Construction, Sustainable Development
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE APPLICATION OF INFORMATION TECHNOLOGY IN THE LIBRARY SYSTEM
Author:	JING ZHAO, HAIBIN ZHANG, JIE YU
Abstract:	With the development of society and science technology, information technology has been rapidly developed, network technology has undergone a change from emerging to mature. In today's highly information-oriented era, network technology has throughout every aspect of our daily lives, affecting our live, learn, work and recreation. Also, the major library system has also undergone a lot of changes, both from resource gathering, the structural adjustment has undergone tremendous changes in all aspects. In the case of the full integration of information technology and the library system, the library service has undergone tremendous changes. In this regard, we have carried out in-depth research, hope information technology can better integrated with library system, so as to serve the public better.
Keywords:	Information Technology Applications; Library Management; Network Environment; Information Service
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE IMPACTS OF THE INTEGRATION OF INFORMATION TECHNOLOGIES AND LIBRARY RESOURCES UPON LIBRARIANS’ PROFESSIONAL QUALITY AND COMPETENCE
Author:	HAIBIN ZHANG, JIE YU, JING ZHAO
Abstract:	Evidently, 21st century is an era of science and technology. In particular, with the popularization of computer and information technologies, a qualified talent shall know about computer and IT in a new era. As information technologies develop and advance forward, unprecedented convenience has been brought for people and great contributions have been made, due to which broader space is available for human development. In the past few years, certain progress has been made in China’s library resources and management, driven by the development of computer and information technologies. To optimize library resources and management, information technologies and library resources have been gradually integrated, by which certain achievements have been made. To adapt to such development trend, it is necessary to make more efforts to explore and study the integration of information technologies and library resources, including the key of integration, the impacts of integration upon librarians’ functions and roles, role of information technologies in management and approaches to integrate library resources & information technologies for better cultivating librarians’ innovative spirit and practical skills, etc. Intensive research and exploration on these aspects are of great significance for guiding librarians’ practices. Thus, this paper studies and analyzes the impacts of the integration of information technologies and library resources upon librarians’ professional quality and competence. First of all, it analyzes the connotations of the integration of modern information technologies and library resources. Next, it explores the features of librarians’ work in the era of information technologies. Finally, it analyzes the impacts of the integration of information technologies with library resources on librarians’ professional quality, competence and roles. The analysis and research are conducted in this paper in hope of providing references for related businesses.
Keywords:	Information Technologies, Library Resources, Integration, Librarians, Professional Quality, Professional Competence
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	MONITOR SYSTEM BASED ON GSM SHORT MESSAGE FOR UNMANNED COMPUTER ROOM
Author:	GAOXIANG CHEN
Abstract:	Based on the limitation of the traditional alarming system, we propose a monitor system based on GSM short message for unmanned computer room. Firstly, we design the monitor system structure. Secondly, we combine the dynamic and static information and proposed an information Publish-Subscribe platform. Finally, this platform supports message ordered by nodes, distributed information synchronization for multi-monitor center and offline message. The proposed monitor system is a loose coupling and extension system. So that’s suitable for multi-department and large scale unmanned computer system. Our designed system has been worked at the computer room of Aero-engine Simulation Research Center and got excellent performance.
Keywords:	Unmanned Computer Room, GSM, Publish-Subscribe, Alarming
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	CHARACTERISTIC ANALYSIS OF CURRENT SPECTRUM ON SHEARER CUTTING LOAD
Author:	ZHIPENG XU
Abstract:	According to the disadvantages of former shearer cutting load measuring method and its low anti-interference ability, this paper proposes a new shearer cutting load measuring method based on the current spectrum. On the basis of load analysis of shearer cutting unit drive system, the theoretical models are established between cutting load and cutting motor current. Simulated load test to the electric haulage coal shearer on the motor load simulation test bed in Xi'an Coal Mining Machinery Co. Ltd Electrical Branch, and using the wavelet analysis theory to do wavelet decomposition and reconstruction on the test data. On load analog signal and the current reconstruction signal performed a time-frequency analysis. The results show that: (1) Cutting current signal in the time domain lags behind the cutting load change. In the frequency domain the two are corresponding relationship and has a very strong correlation. The correlation coefficient is 0.8853. (2) Current RMS signal reflect the cutting load change that mainly concentrated in the t frequency band less than 10Hz. Hence, it is not easy to be interfered by the power fluctuations and coal impact. The frequency of MG900/2210-WD is 1.63Hz. (3) The wavelet decomposition can effectively filter the current signal in the high frequency interference. After the reconstruction of wavelet, low frequency current signals can be got easily.
Keywords:	Shearer, Current Spectrum, Wavelet Analysis
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE PATH PLANNING ALGORITHM AND SIMULATION FOR MOBILE ROBOT
Author:	ZHANCHUN MA, XIAOMEI NING
Abstract:	Research the global path optimization of mobile robot. The traditional evolution algorithm’s shortcoming is precocity, in order to overcome the shortcoming and improve the speed and accuracy of the traditional evolution algorithm. The paper combined cloud theory with rough set to use in path planning of mobile robot. In simulation experiment, the environment was described by grid method and random produced initial path group, the first rough set used training initial path group, a series of feasible paths calculated by the minimum decision rule training. The path population optimized by cloud model finally acquired the best path to walk. The simulation results verified special when the initial group was large the convergence speed and search quality had improved by the algorithm combined with the evolutionary algorithm.
Keywords:	Cloud Model, Rough Set, Robots Path Planning
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	DISTURBANCE REJECTION FOR A CLASS OF NONLINEAR SYSTEMS WITH INPUT TIME-DELAY
Author:	WEN XINYU
Abstract:	Disturbance-observer-based control (DOBC) has been considered as a robust control scheme against the various unknown disturbances in many applications The existing DOBC methods were only applicable for the case where disturbances satisfy time matching condition, i.e., they enter the system in the same time as the control inputs. By appropriately designing a auxiliary observer, the disturbance of future time is predicted after appropriate coordinate transformation, new disturbance estimation and rejection law are designed in this paper. One novel feature of the proposed method is that the merits of DOBC can be inherited for a class of nonlinear systems with input time-delay. By integrating the disturbance observers with conventional robust control laws, the disturbances can be rejected and the desired dynamic performances can be guaranteed. Simulations demonstrate the advantages of the proposed scheme.
Keywords:	Disturbance observer, Time delay, Disturbance rejection, Sinusoidal disturbance
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE NAVIGATIONAL CONTROL MODEL FOR ICE–COVERED CANAL AND APPLICATIONS
Author:	HAN YAN-CHENG, LUO HUI, SU XIAO -CHENG , LU JING-WEI
Abstract:	In Semi-cold regions, the canal water is flow under ice cover and the ice is float on the water. The speed of water level dropping and rising must be controlled strictly to prevent ice break. But in the classic PID control, on the one hand the goal water level is a fixed horizontal line, so the error is large at start and brings large overshot which make ice cover break easily. On the other hand, the control processes and speed can not accurately predict before control which cause the control process as expected. In this paper, a new navigational and guiding canal control algorithm is proposed. In this method, a dynamic navigational goal of water level is set before. Through this controller, the control process will follow the guiding, and the water level change process is controlled well as we expected. The simulations show that the water fluctuation and overshoot are smaller.
Keywords:	Navigational; PID; Canal; Transmission of Water. Control；Ice Cover
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	DIGITAL SIGNAL PROCESSING TEACHING: A PRAAT BASED APPROACH
Author:	KURBAN UBUL
Abstract:	Digital Signal Processing (DSP) is a significant and increasing subject area in many disciplines such as, Electrical/Computer Engineering (ECE), Communication Engineering, Computer Science and other Engineering/Science disciplines. With the growing of DSP job market, the DSP course has become very popular among ECE students, and it is still considered to be a difficult and complex one to study. Praat, a speech analysis software, is proposed to apply in signal processing teaching in this paper. More DSP algorithms, even real-time signal processing algorithms are simulated by Praat and its script language that the object of using the software further enlarged to the signal processing area. The authors have enhanced the learning experience for their students by using the software during the teaching, and reduced the difficulty in understanding of DSP theories and algorithms.
Keywords:	Digital Signal Processing (DSP), teaching, computer based educational tool, Praat, Praat script
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	MODELING AND SIMULATION OF OPERATIONAL AMPLIFIER USING VERILOG -AMS
Author:	ZANG YUJIE, ZHANG NING, WU LIHUA
Abstract:	This paper puts forward a method of building a macro model of operational amplifier. And then it describes the way on how to use the Verilog-AMS language with the Cadence Virtuoso AMS simulator as a simulation tool in the behavior level. In order to verify the correctness of the behavior descriptions, the paper simulates the described op-amp in a basic integral operation. The result shows the macro model has appropriate accuracy while needs more less simulation time. The high-level model described by Verilog-AMS has advantages in not only reducing simulation time but also simplifying the simulation process. The method that uses macro model for simulation of the more complex system will become wide spread in system design in the future.
Keywords:	Verilog-AMS, Operational Amplifier(Op-amp), Macro Model, Power Consumption
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	A FAST SEARCHING ALGORITHM BASED ON ADAPTIVE DIRECTION HYBRID TEMPLATE OF X264
Author:	LUO YUAN, YOU CHIHONG, ZHANG YI, TAN SHAOFENG
Abstract:	By analysis the motion estimation algorithm of the open source H.264/AVC video codec, it is showed that the number of unnecessary search point will effect the speed of the algorithms. In this paper, a novel fast hybrid temp searching algorithm based on adaptive search direction of x264 is presented. An adaptive threshold for the matching macro block is set and a series hybrid search patterns were utilized adaptively to reduce the number of unnecessary search points. Moreover, improved MRACO PIXEL_SAD_C is used to reduce the computing time of SAD. Experiment results show that the novel algorithm is effectively.
Keywords:	motion estimation, X264, adaptive search, hybrid template
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE LIQUID LEVEL DETECTION PROCESSING SYSTEM BASED ON LABVIEW
Author:	XING XUENING
Abstract:	Level as one of the important indicators in the industrial production, need accurate measurement and control at any time .We use the single chip microcomputer and LabVIEW design a level test processing system, according to the laboratory level test processing equipment. We deal with the field signal with the use of the SCM hardware circuit and can get the measurement and conversion, which includes display circuit, keyboard and reset circuit, alarm circuit, power rectifier circuit design, etc. In the upper computer system, we can realize level setting, monitoring, displaying and recording function with the help of the LabVIEW. Moreover, the results of the system test are good.
Keywords:	LabVIEW, MCU, RS–485, Level Detection, Data Acquisition
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	DOWNLINK ADAPTIVE CLOSED LOOP MIMO RESEARCH FOR 2 ANTENNAS IN TD-LTE SYSTEM
Author:	XIAOTAO XU, WENBING JIN
Abstract:	For downlink adaptive controlling, feedback from the UE used can highly improve user data rate. The adaptive algorithm provides the gain of high peak rates (dual stream) when close to the cell and good cell edge performance (single stream). In this paper, firstly, it described CL loop MIMO adaptive switch for TD-LTE system, moreover, explained three UE feedback categories, CQI, PMI, RI mode, especially expatiated on 2 different CQI mode theoretical calculation and application. Finally, the paper gives and analyses the detailed simulation for different transmission mode and also gets some technical conclusion.
Keywords:	Dynamic Switching, Reporting Mode, Aperiodic Feedback, Channel Model, CDF Performance, MIMO Mode
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	A SEMI-STRUCTURED TEXTS CLUSTERING ALGORITHM
Author:	ZHANG PEI YUN, CHEN EN HONG, HUANG BO
Abstract:	In order to improve the clustering result of semi-structured texts, it needs to reduce the dimension and sparsity. To reduce the dimensions of semi-structured texts clustering, aimed at meta-data of semi-structured texts, we build the metadata feature vectors. Based on the domain concepts model, we build domain vector based on the domain concepts tree (set). With the help of the WordNet, we compute semantic similarity between the metadata feature vector and the domain vector. Finally, the clustering algorithm is designed to cluster semi-structured texts based on the semantic similarity between metadata feature vectors and domain vectors. The analysis shows that the clustering algorithm is feasible and has higher clustering accurate rate. It can ease the problem of lacking domain ontology and has the ability to improve the clustering quality.
Keywords:	Domain Concepts Model; Metadata; Semi-Structured Texts; Clustering; Semantic Similarity
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	A SIMPLE COMPUTER CONTROL METHOD OF INVERTED PENDULUM
Author:	SUN QIANLAI, SUN ZHIYI
Abstract:	In order to guarantee real time, a simple control method is presented to stabilize the fast-moving system-inverted pendulum. The method was obtained by mathematical derivation based on the dynamical model of the inverted pendulum system, but the control strategy is independent of the model. It is applicable for controlling other multi input single output plants besides inverted pendulum. A controller was designed to stabilize an inverted pendulum based on that method. The structure of the controller is simplified, and the parameters which need to be adjusted are reduced. The simulation result shows that the simple control method is valid to stabilize the inverted pendulum.
Keywords:	Computer control, Inverted pendulum, Mathematical derivation
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ADAPTIVE FUZZY BACKSTEPPING CONTROLLER FOR POSITION CONTROL OF A PERMANENT MAGNET SYNCHRONOUS MOTOR DRIVE SYSTEM
Author:	ZHANG YING, GUO YAJUN, LI PENG
Abstract:	In this paper, an adaptive fuzzy backstepping controller has been developed for the position tracking control of a permanent magnet synchronous motor (PMSM) drive. Fuzzy logic systems are used to approximate unknown nonlinearities appearing in the control law and an adaptive backstepping technique is employed to construct controller. To illustrate the performance of the proposed controller compared with the conventional backstepping that is studied by computer simulations. Simulation results verify that the proposed control structure is very simple and the position tracking error can converge to a small scope under parameter uncertainties and load torque disturbance.
Keywords:	Adaptive fuzzy control; Permanent magnet synchronous motor; Stability; Backstepping
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	A DEPLOYMENT SYSTEM OF EARTHQUAKE RELIEF SUPPLIES BASED ON ZIGBEE
Author:	ZHANG BING, XING LILI, YANG FAN, XIE LI, LU YUHONG, SHI LEI, 7LI YUE
Abstract:	After earthquake, the communication facilities are severely damaged in the disaster area. In response to the issues, the zigbee is used to connect the post-earthquake field and the command center. Then, a deployment system of earthquake relief supplies based on zigbee, which can send the signal of demands such as drugs, food, excavators, reinforce to the command center, is designed and realized. So the command center can deploy the relief supplies efficiently according to the received demands
Keywords:	Zigbee, Earthquake Relief Supplies, Supplies Deployment
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ACCELERATE TERRAIN RENDERING USING PROGRAMMABLE GRAPHICS HARDWARE
Author:	ZHISHENG MA, MING SUN, GUANGJUN SONG
Abstract:	Multiresolution representations are often used in terrain rendering systems to increase system performance. To avoid popping effects, these systems usually utilize geomorphing technique, which may be presented as the bottleneck of the system. With the recent advance of graphics hardware, that is, the programmability, we try to decrease the CPU load by shifting the geomorphing from CPU to GPU. But this doubles the data amount that needs to be transferred through graphics bus. By carefully organizing terrain data in compact format, we can reduce the data amount to about 40% of the original. These techniques help us to accelerate the rendering process about 30% to 100%, compared with standard OpenGL implementation.
Keywords:	geomorph, GPU computing, terrain rendering
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	CROSSTALK ANALYSIS FOR HIGH-PRECISION OPTICAL PICKUP ACTUATOR SYSTEM
Author:	QINGXI JIA, ZHIZHENG WU, YANG LI, MEI LIU
Abstract:	The traditional optical pickup actuator model based on the assumption that the actuator spatial magnetic field distributes uniformly ignores the crosstalk characteristic among the movements of different directions. Crosstalk characteristic is a key factor that affects the actuator dynamic property and, consequently, the accuracy of reading and writing operation in the future higher density optical storage systems. In this paper, the actuator spatial magnetic field distribution model is first established, then the crosstalk movement phenomenon of the actuator is analyzed and simulated in CST software based on finite-difference time-domain (FDTD) principle. By investigating the parameters of the width and height of the permanent magnet and the thickness of the focusing coil, it is concluded that the crosstalk characteristic is closely related with these structural parameters and crosstalk can be effectively reduced by optimal design of them, thus, the dynamic performance of the actuator can be improved.
Keywords:	Crosstalk Characteristic, Optical storage, Higher density, Structural Parameters
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	RBF NEURAL NETWORK-BASED CALIBRATION OF WIDE ANGLE FOVEA LENS FOR ACTIVE VISION TRACKING
Author:	TANG XINXING, XU MIAO, HE LIPENG
Abstract:	Camera calibration accuracy will affect directly the target tracking effect. The traditional camera model only considered the linear perspective projection model, such as the pinhole camera projection model, the linear model is not suit for the wide angle lens camera with big distortion, the radial and tangential distortions exist simultaneously in the image obtained by the wide angle fovea lens camera. Therefore, in this paper, a calibration method is proposed, which is based on RBF neural network (RBFNN) calibration model. RBFNN is three-layer feed-forward neural network including input layer, hidden layer and output layer with the good performance, RBFNN can avoid the calculation and reasoning from the geometry. At last, the calibration experiment result shows that RBFNN has high accuracy than the linear calibration, moreover, the RBFNN model has increased the flexibility of system, and has the important practical significance.
Keywords:	Radial Basis Function Neural Network (RBFNN), Camera Calibration, Active Vision Tracking
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	RESEARCH ON THE APPLICATION OF PIEZOELECTRIC FORCE SENSOR BASED ON TIRE DYNAMIC BALANCE DETECTION TECHNOLOGY
Author:	YANG JINGFANG, LI HUI, JIANG QIUXIANG, FENG XIANYING
Abstract:	The sensor is an important component in obtaining signal of the tire dynamic balance detection system. It is an apparatus converted the vibration signal generated by the imbalance into electric signal without distortion. Therefore, the number and mounting position of the sensors, the mounting and preloading methods are key elements should be researched. During this tire balancing detection system, according to the frequency range of the signal, piezoelectric force sensor of KISTLER is adopted. Detailed steps of the sensor mounting and preloading are put forward. Based on the abnormality signals come from engineering practice, it analysis the key problems that may occur in the process of installation and preload. It discusses the influence of sensor nonlinearity on the measurement accuracy. Furthermore, the best calibration test weight value of different models of tire balancing test machine is determined by experiment. Sensors’ Correlation effects on the accuracy of plane separation are also researched. It provides a theoretical basis for the mechanical structure design. It laid a foundation for the tire balancing machine design, which is with a high plane separation accuracy.
Keywords:	Piezoelectric Force Sensor, Tire Dynamic Balance Detection, Sensor Nonlinearity, Sensor Correlation Effects
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	ON THE TAXI INTELLIGENT CALL SYSTEM BASED ON ANDROID PLATFORM
Author:	SUN HANG
Abstract:	With the advancement of urbanization, how to make the city taxi system efficiently operate is an important problem in public transportation. The traditional cruise or point-point type guest-looking ways lead to the waste of resources, high operation cost and long passengers' waiting time. This is because the information transmission between the taxi and passenger is not real-time. This paper implements a taxi calling system based on intelligent mobile terminal, by which the passengers and the taxi driver can exchange information anytime. It can analyze the randomly appeared personalized passenger transport demand and timely transfer it to the appropriate service provider (cab), so as to fully use the existing taxi service potential, promote the improvement and development of city bus system, improve the quality of urban residents and promote the quality of the city. This paper tests the city taxi calling system through the actual system and simulation methods. The experimental results show that the use of the system can reduce the taxi empty loading rate by 68%, and the average passenger waiting time by 73%.
Keywords:	Taxi call, Intelligent, Android Platform, Cab
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	THE RESEARCH OF DETECTIONAL METHOD ON CHINESE DATES JIANGTOU BASED ON CHROMINANCE COMPONENT AND IMAGE MORPHOLOGY
Author:	AILING XIAO, WEI LI, XINCHENG HUANG, LI WANG, XUEPING CHAI,
Abstract:	The jiangtou color of Chinese datas full in ripe stage are similar to the normal ones and not be readily detected., so a new method is put forward based on chrominance compone and image morphology for detecting jiangtou. Obtain respective color space image of Chinese datas ; Cut out an image in the normal area and four images in the jiangtou area of respective color space image; Calculate gray average value and gray range and standard square deviation to screen Preliminarily parameters. The result is r and b in rgb color space; I2 in I1I2I3 color space; S in HIS color space and S in HSV color space. Use image morphology method to draw a complete jiangtou. Do experiments with 57 Chinese datas including 27crackled datas and 30 normal datas. The result show that S in HSV color space is superior to others and the correct recognition rate of jiangtou datas is 81.5% and the false positive rate is 3.3%，which can basically meet the accuracy requirement of Chinese red dates grading system.
Keywords:	Chinese Dates, Chrominance Compone, Jiangtou , Detection
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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Title:	A SKEW ANGLE DETECTION AND SEGMENTATION ALGORITHM OF PDF417 BAR CODE UNDER COMPLEX BACKGROUND
Author:	GUOCHENG WANG, GUOYAN ZHANG, YANPENG MA, YI LIU, JIANHUA LI, PING LI
Abstract:	PDF417 barcode identification is very sensitive to the skew angle while existing tilt angle detection algorithms are defective because of great calculation cost or high complexity or uncertain result. In this paper, a series of morphological transforms are applied to extract PDF417 out of complex background. Firstly, pre-process captured PDF417 images by noise removal and illumination equalization and then binarize it. Secondly, barcode’s skew angle is detected through measuring eroded area by dot pair or linear structure element based on the PDF417 barcode’s directional texture characteristics. Finally, reconstruction operation is utilized to obtain the full PDF417 barcode. The simulation shows that the algorithm can detect the PDF417 tilt angle exactly, and segment the barcode from complex noisy background.
Keywords:	PDF417 bar-code, texture analysis, morphology, skew angle detection, barcode orientation and segmentation
Source:	Journal of Theoretical and Applied Information Technology April 2013 -- Vol. 50. No. 3 -- 2013
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