Application of Improved Differential Evolution Algorithm in solving Container-packing problems

Keywords- fabric defect detection, classification, Gabor filter, PID, Elman neural networ.

Speech as a High Level Control for Teleoperated Manipulator Arm

Ibrahiem M. M. El-Emary1

1Faculty of Information Technology

King Abdulaziz University

Jeddeh, King Saudi Arabia

E-mail: omary57@hotmail.com

Mohamed Fezari2 & Hadj Ahmed Abbassi3

2,3Laboratory of Automatic and Signals, Annaba

University of Annaba

Annaba, Algeria

E-mail: Mohamed.fezari@uwe.ac.uk,

E-mail: abbassi@uni-annaba.org

Abstract--In this work a tele-operated system for a robot arm is designed and controlled by the operator, in witch voice control mode occur to carry out remote tasks. A voice command system for the manipulator arm is implemented as a high level control design and compared to a low level control design based on joystick. The high level control paradigm adopted is based on a spotted words recognition system using stochastic model, robust HMM (Hidden Markov Model) with Cepstral coefficients as parameters witch is used in automatic speech recognition system. To implement the approach on a real-time application, a Personal Computer USB interface was designed to transmit commands via Bluetooth components to control the movement of a Robot Arm (the TR-45). The user can control the movements of four degree of freedom (DOF) for TR-45 using a vocal phrase containing spotted words or using a joystick.
Keywords- Human-machine interaction, hidden Markov Model, voice command, stepper motors and Robotics.

The Fault Diagnosis for the Screw Rotor of the Single Screw Compressor Based on Wavelet Finite Element Method

ZHAO BIN

Liaoning Shihua University

Fushun, China

E-mail: zbzbz0203288@163.com

Abstract—The screw rotor was a main part of the single screw compressor. The crack of the screw rotor would lead to fault of the single screw compressor. Therefore it was necessary to have fault diagnosis for the screw rotor. The wavelet finite element method was used to analyze the fault of the screw rotor. The changes of the natural frequency reflected the location and sizes of the cracks. The effect of main sizes including the length, the width and the depth on the natural frequency was studied, which offered the theoretical guidance for the fault diagnosis of the screw rotor in the further researches.

Keywords-single screw compressor; the screw rotor; wavelet finite element ; fault diagnosis

Research on Reducing Torque Ripple of DTC Fuzzy Logic-based

Gao Sheng-wei1.2, Wang You-Hua1, Cai Yan2, Zhang Chuang1

1. Province-Ministry Joint Key Laboratory of EF and

EAR. Hebei University of Technology

Tianjin, China

gaoshengwei1978@126.com

Tianjin Polytechnic University

Tianjin, China

Abstract—The direct torque control (DTC) technique has been widely used as a control strategy for motor drive system. High torque ripple is a major problem when the motor is running at low speed in DTC system. By analyzing the causes of torque ripple, it is can be found that the change of the speed error signal is a good indicator to determine the situation of motor torque ripple. In this paper, a DTC strategy with a fuzzy logic controller has been proposed. The inputs of the fuzzy controller are the speed error signal and the change rate of current signal. The output is incremental value of the torque hysteresis amplitude. Dynamic adjustment of the torque hysteresis amplitude is the ultimate goal. The simulation results show that the DTC system with hysteresis amplitude adjustment fuzzy logic controller can reduce the pulsation of the motor torque and flux, and improve the performance of low-speed operating conditions.

Keywords-fuzzy logic; torque hysteresis; amplitude adjustable; direct torque control

RBF Neural Network Based Prediction for Target Tracking in Chain-type Wireless Sensor Networks

Chen Guangzhu, Zhou Lijuan, Zhu Zhencai,Zhou Gongbo

School of Mechanical & Electrical Engineering

China University of Mining & Technology

Xuzhou, Jiangsu, China

cgzhu@126.com

Abstract—A target tracking is an important embranchment of WSN, which can assure the position of a moving target real-time. This paper works on the prediction problem of target tracking of chain-type wireless sensor networks. We choose RBF neural network as the basis of the tracking prediction model. Based on analysis of chain-type tracking characters and RBF neural network based tracking prediction model, we build a target tracking prediction algorithm. The target tracking prediction problems of moving objects in coal tunnel are simulated and the simulation results show that a moving target can be traced real-time and accurately using the presented tracking prediction model and algorithm.

Secure mobile payment based on Super SET protocol

WAN Zhongbao1

Information Security Center, East China Jiao Tong University, Jiangxi, Nanchang, 330013 China

Email: nj_qwang@163.com

Wang Qing2

Information Security Center, East China Jiao Tong University, Jiangxi, Nanchang, 330013 China

Email: wqzone85@126.com

ABSTRACT： Under the premise of fully analyzing the security requirements and security threats of mobile payment, the analysis of secure mobile payment based on SET protocol in the WAP environment has been made, then, this paper points out its various flaws exist in the transaction process. Meanwhile, making improvements on the basis of the original Mobile Payment based on SET protocol, then proposed Mobile Payment based on Super SET protocol. The adoption of the advanced mechanism, the credit hierachical system, the dispute arbitrate mechanism and the virtual user information system etc, which strenthened and perfected the security and non-repudiation of the mobile payment based on SET protocol., and satisfied atomic transactions and the privacy safeguarding. The Mobile Payment based on Super SET protocol has improved the whole transaction process of the mobile e-payemt transaction and all the parties’ interests have been guaranteed practically.

KEYWORDS： Super SET protocol,;Secure Mobile payment; Credit hierarchical system; Wireless Application Protocol

Dynamic modeling of Multi-Axis Synchronous Gantry Machining Center

Guo-ning SI, Yue-qing YU, Jian-xin YANG, Zhen ZHANG

(College of Mechanical Engineering and Applied Electronics Technology,

Beijing University of Technology, Beijing 100124, China)

e-mails:siguoning@emails.bjut.edu.cn

Abstract The dynamic model of a multi-axis synchronous gantry machining center VX32-60 is developed based on the finite element method. Both the numerical simulation and the modal experiment are studied. The nature frequencies and mode shapes are obtained by theoretical analysis and experimental results. The effects of material parameters and section parameters on the dynamic characteristics of multi-axis synchronous gantry machining center are investigated. The design optimization method of these parameters is proposed, which increases the nature frequencies of machining center and reduces the motion error.

Key words: Synchronous gantry machining center; dynamic model; dynamic characteristics; nature frequency

Research and Realization of Multi-level Encryption Method for Database

Zhou Yuping,

Information Science and Technology School

Hainan Normal University

Haikou , Hainan, China

e-mail:hnzhouyp@126.com

Wu Xinghui

Information Science and Technology School

Hainan Normal University

Haikou , Hainan, China

e-mail:szfwxh@hainnu.edu.cn

Abstract—Multi-level encryption method was used to encrypt the database system and encryption design method for different levels of data granularity was given, respectively taking database level, table level, recording level and field level as the objects.

Keywords- Database encryption;data table encryption; record encryption; field encryption

Research on Suspension System based

on Fuzzy Logic Control

Chuan yin TANG

School of Mechanical Engineering and Automation，

North Eastern University,

Shenyang, China

monsigor @yahoo.com.cn

Guang yao ZHAO

School of Mechanical Engineering and Automation，

North Eastern University,

Shenyang, China

gyzhao @me.neu.edu.cn

Wei ZHOU LIxin Guo

Ministry of Communications Research Institute of Highway School of Mechanical Engineering and Automation Beijing North Eastern University,

zw5979@163.com Shenyang, China

Abstract—In this paper, a six degree of freedom half body vehicle suspension system is developed and the road roughness intensity is modeled as a filtered white noise stochastic process. Based on control theory, the fuzzy control system of the active suspension is established. With the aid of software Matlab/simulink, simulation process is done. Simulation results indicate that the proposed active suspension system proves to be effective in the vibration isolation of the suspension system. A mechanical dynamic model of the two degree of freedom quarter body of vehicle suspension system is

Keywords- suspension control; fuzzy logic; ADAMS; simulink Introduction Introduction (Heading 1)

Shape-based Interpolation of Grey-level Images

Qian Jin, Song Shuni,Wu Jian,Feng Nan,Shi Datao

College of science

Northeast University

Shen Yang

qian_jin2000@126.com, songsn@126.com

Abstract—The two given gray images are preprocessed, including filtering image processing, on the fault slice image binarization segmentation processing and image of the two distribution centers. Mathematical morphology is used to acquire the contour of the interpolated image. Then, the corresponding points are identified respectively in the two images through calculating the relation between the arbitrary point of contours and the focal point of the angle. If the grey value of both of the corresponding points are close to each other, linear interpolation is used to calculate the grey value of the interpolated point. But if the two corresponding points have distinct grey value, a method to calculate the interpolated point’s grey value is presented. Once all point’s grey value are acquired, the final interpolated image is accomplished. The experimental results show that this new method is effective.

Keywords- Image Interpolation, Mathematical Morphology, 3-D Reconstruction

Development of an Autonomous Control System for a Small Fixed Pitch Helicopter

Owen McAree, Jonathan Clarke, Wen-Hua Chen

Department of Aeronautical and Automotive Engineering,

Loughborough University,

Loughborough, United Kingdom

e-mail: {O.McAree, J.H.A.Clarke, W.Chen} @lboro.ac.uk

Abstract—The indoor test bed of the Autonomous Systems Laboratory has been used to create a control system for a small fixed pitch helicopter. This paper outlines the challenges posed by such a vehicle and the control system designed to overcome them. The control system utilized a visual tracking system to obtain state information without onboard hardware. Matlab/Simulink environment was used to facilitate rapid prototyping control development. An autopilot consisting of multi-channel PID controllers was implemented for flight tests. Failsafe strategies and gain scheduling were both investigated and implemented with the use of a graphical user interface. A number of flight tests were conducted and the results are provided. The future work of the laboratory is also covered.

Keywords-helicopter; autopilot; flight test; gain scheduling; tracking

A Novel Framework for Miscellaneous Data Aggregation

in Wireless Sensor Networks Paper Title

Feng TIAN, Er-qing XING, Chuan-yun Wang

College of Computer Science

Shenyang Institute of Aeronautical Engineering

Shenyang, China

{tianfeng5861,xingerqing,wangcy0301}@163.com

Abstract—considering the data-centric feature of wireless sensor networks and different data has the different requirement of real-time. A new data aggregation algorithm-Miscellaneous data aggregation algorithm based on timeliness of data in wireless sensor networks (MDA) is proposed. This algorithm can adaptability adjusts the data fusion strategy according to the results of the analysis of data time-lines in Application Layer. Moreover, AIDA Layer can dynamically control the degree of aggregation (DOA) in accordance with changing traffic conditions. According to theoretical analysis and calculation results, the algorithm can both satisfy the real-time requirement of different data and decrease the number of redundant data, save energy.

Keywords: WSNs; data aggregation; data timeliness; degree of aggregation; aggregation latency

Parallel Simulation of Large-scale Microscopic Traffic Networks

Wei Dai, Jiachen Zhang

Department of Computer Science and Technology

Jilin University

Changchun, China

david19842003@gmail.com, zhangjc@jlu.edu.cn
Dongliang Zhang

Department of Computer Science and Technology

Tongji University

Shanghai, China

zhangdongliang_cn@hotmail.com

Abstract—Microscopic traffic simulation is an effective way to analyze the feature and behavior of transportation systems. However performing microscopic simulations for large-scale networks remains a huge computing problem. Intensive computation characteristics displayed in traffic simulation can benefit from parallel, distributed processing. Based on simplified models, a MPI based distributed parallel traffic simulation system is implemented. And by applying monolateral communication strategy, a high performance is acquired.

Keywords-parallel simulation; traffic network; MPI; monolateral communication

Advanced Algorithms in Audio Steganography for Hiding Human Speech Signal

Dmitriy E. Skopin1, Ibrahim M. M. El-Emary2

1FET, Al'Balqa Applied University

Amman, Jordan

e-mail: m825453@yahoo.com

2Faculty of Information Technology, KAU

Jeddeh, Kingdom of Saudi Arabia

e-mail: omary57@hotmail.com

3,4FET, Al'Balqa Applied University

Amman, Jordan

e-mail: rashad_ras@yahoo.com

Abstract— on a sociological level, having finally taken a foothold during the internet generation’s explosive growth of the 1990s, steganography serves as a means for private, secure and sometimes malicious communication. On a technical level in this thesis, we have proposed two methods of steganography: one of them is based on the technology of spectrum shift, when the distribution of human speech becomes located in unheard places of music spectrum. The second one is based on the technology of spectrum spreading when harmonics of human voice and music are mixed between each other then the Inverse Fourier transform is applied to form a new signal in time domain. Most important technical sound of this project is attempting to implement methods of analog audio steganography, which allow embedding human speech signal to the sound file

Keywords- Audio steganograph; speech signal; data hiding

Generalized Predictive Control Algorithm Applied to Thermal Power Units Based on PID Neural Network

Chunyan Du

College of Information Engineering

Inner Mongolia University of Technology

Huhhot, China

e-mail: dcy1096@yahoo.cn

Hujun Ling

College of Information Engineering

Inner Mongolia University of Technology

Huhhot, China

e-mail:1052117614@qq.com

Abstract—Large-scale Generating Unit in heat power is a system which is complex nonlinear, multivariable, time-variant with long-time delay and difficult to establish accurate model, and etc. So it is hard to make system gain optimum running effect with conventional control strategy. A PID network which has dynamic character is used to identify the coordinated control system for establishing a predictive model of generalized predictive control strategy. The Generalized predictive control strategy has some beneficial characteristics such as wide application and strong robustness. It achieves predictive control with online rolling optimization and real time feedback revision. The results of the emulation show the availability of it.

Keywords-pid neural network; generalized predictive control; thermal power unit

SAR Imagery Segmentation Based on Integrated Active Contour

Peng Rui-hui

Dept. of Weaponry Engineering

Naval Univ. of Engineering

Wuhan, Hubei, China

pengruihui@yahoo.cn

Wang Xiang-wei,LÜ Yong-sheng

The Fifth Research Institute

Second Artillery Equipment Academy Beijing, China

Dept. of Weaponry Engineering

Naval Univ. of Engineering

Wuhan, Hubei, China

Abstract—Image segmentation is an important problem on image processing technique. Based on active contour model, a novel integrated active contour (IAC) model for SAR imagery segmentation has been developed. In this model, the edge information is extracted by edge detection operators based on ratio of average framework, and the region statistical information is distilled by the maximization of likelihood function of different regions. And an unconditionally stable numerical scheme is used by means of additional operator splitting arithmetic. In the end, some segmentation tests have been done using MSTAR, Radarsat-2 and domestic spaceborne SAR images. Results show: proposed model has a good adaptability to complicated SAR images segmentation, and gives an accurate and fast partition for different regions in the images; implementing method is robust which is insensitive to parameters setting and initializations.

Keywords- synthetic aperture radar; image segmentation; edge detection; active contour

Research on Intelligent Hydraulic Impactor

System Based on Fuzzy Control

YANG Guoping

Automobile Engineering College

Shanghai University of Engineering Science

Shanghai, China

E-mail: ygpljyl@163.com

Abstract—A kind of intelligent hydraulic impactor is put forward, including its operating principle and the method to design the hydraulic control system, the hardware and software modules of the computer control system. In the light of the technology characteristics of the hydraulic impactor, the fuzzy control algorithm is given. The fuzzy controller and the experimental prototype are designed according to the fuzzy control strategy. By experiments, it’s proved that the intelligent hydraulic impactor can automatically regulate the impact frequency and impact energy to realize its intellectualized work according to the differences between physical properties of objects.

Keywords-Hydraulic impactor；Hydraulic control；Fuzzy conyrol

Advances in Research on Artificial Muscles Technology and Its Control Algorithm

Zhong Luo, Shuxian Yang, Dongyang Xue, Lina Hao and Hongyi Liu

School of Mechanical Engineering & Automation

Northeastern University

Shenyang, Liaoning Province, China

zhluo@mail.neu.edu.cn

Abstract—On the basis of results of previous studies, this paper overviews several kinds of typical artificial muscles’ structural principle, the technological study condition and application status in main fields，and classifies artificial muscles. This paper mainly summarizes domestic and foreign scholars’ research results on the control technology of artificial muscles, including neural network control, control, parameter self-adaptive control, variable structure control, single neuron self-adaptive PID control, pole-placement and adaptive digital control, two-layer sliding mode’ fuzzy variable structure control, fuzzy immune PD control algorithm with fixed gravity compensation and so on. Finally, it prospects the trend of research and development of artificial muscles.

Key words-artificial muscles; structural principle; Control Algorithm

Error Analysis of a Inverted Pendulum on an Inclined Rail

Zhong Luo, Zhiyong Shi, Peng Hu, Lina Hao and Hongyi Liu

School of Mechanical Engineering & Automation

Northeastern University

Shenyang, Liaoning Province, China

E-mail: zhluo@mail.neu.edu.cn

Abstract—According to inverted pendulum system control error, the method of error analysis and compensation is proposed, which establishes the structural model of inverted pendulum system, elaborates control principles of tilt inverted pendulum system, and studies error causes of inverted pendulum and inclination system error and dynamic error in the control process. But errors involving electric control system and model of inverted pendulum system are combined together to constitute composite error of tilt inverted pendulum system. The purpose of studying the relationship among composite error, motion parameters and structural parameters is to rediscover a solution to minimize composite error and to improve the accuracy and precision of control system provides theory basis. The simulation results reveal the necessity of optimal control error compensation of tilt inverted pendulum.

Keywords: tilt inverted pendulum, error analysis, compensation, simulation

Using Object-Orientation to Conceptualize an Adaptive Learning Content Management System Modeling

Moo-Chee Lee

Department of Industrial Engineering

Yuan Ze University

Taoyuan, Taiwan

ieychung@saturn.yzu.edu.tw

Yun-Kung Chung

Department of Industrial Engineering

Yuan Ze University

Taoyuan, Taiwan

ieychung@saturn.yzu.edu.tw

Abstract—A conceptual modeling of an adaptive or a flexible learning content management (LCM) system is an initialized step toward successful implement of a distance education system on Internet. Its aim is at planning and accomplishing the responsiveness to the learning content (re)configuration required for meeting the students’ learning goals. Since learning content is composed of the relative learning objects, their (re)configurations and reuses are essential to the construction (modification) of a new (existing) studying subject (content). The alternatives of appropriately aggregating a number of relative learning objects to structure the learning subject certainly is to the success of the LCM system implementation. This paper thus presents such a conceptualization that is able to model an adaptive LCM system by defining its learning object constituents as the respectively reusable active objects represented in the nature of the object-orientation (OO) software. The aspect of the proposed OO-based active objects instruments the modeling process of an adaptive LCM system.

Keywords-multimedia databas; distance learning; learning content managemen;, learning object; object-orientation.

Intelligent Control of Unified Power Flow Controller for Stability Enhancement of Transmission Systems

Manju P

Sri Krishna College of Engineering & Technology

Coimbatore, India

e-mail: manjupresearch@gmail.com

Subbiah V

Department of Electrical & Electronics Engineering

Sri Krishna College of Engineering & Technology

Coimbatore, India

e-mail: subbiah42@yahoo.com