bluuebunny/crossref_metadata_2025 huggingface dataset:
The Method of Chinese Opinion Sentence Extraction and Polarity Identification Based on Sentimental Elements
Authors: Liu Nan , He Yan Xiang , He Fei Yan , Peng Min , Liu Jian Bo
Published: September 2013

In this paper, we propose a new method for the opinion sentence extraction and its polarity identification in sentences which contain sentimental elements. In this method, the single sentimental element and Composite Sentimental Element are calculated respectively by sentimental dictionary and sentiment-based training corpus. After that, we design a model which is to extract objective & subjective sentences and analyze the polarity of the latter. This model can be used to extract the sentimental information in the two parties of sentimental elements. Finally, we applied this model in micro-blog sentences analyzing and proved its effectiveness.
The Application of BP Neural Network in Network Intrusion Detection
Authors: Lou Ya Fang , Yuan Zhi Jun , Wu Hao
Published: September 2013

As the network is impacting enormously to all aspects of society, the network security becomes a critical problem. The traditional intrusion detection technology exists some disadvantages: the imperfection of architecture, the slow detecting of system, the vulnerable of itself architecture, and so on. This paper presents an intrusion detection model based on BP neural network which has the incomparable advantages against traditional intrusion detection systems. Therefore, the study of this subject possesses the practical significance.
Storage Model of Graph Based on Variable Collection
Authors: Chen Zheng Sheng , Lu Zhi Ping , Li Chang Gui
Published: September 2013

As the traditional implements of graph are complicated in data structure and hard to maintain, or short in storage utilization and low computational efficiency, this paper designs one storage model of graph based on variable collection according to the object oriented method, and implements it with the variable collection data type that high level programing languages process. Comparing with adjacency matrix and list, analysis and cases show that this model is comprehensible and extensible with high calculation efficiency.
Report on Urban Traffic Information Integration Based on 3G/Web Services Technology
Authors: Zhang Yang , Yin Chuan
Published: September 2013

During the last few years, the integration and sharing of the urban traffic information is one of the popular topics, further comparison and analysis carried out on these different methodology and technology available to the issue, and the 3G network model is built. The model is used to discuss the integration and sharing of the transportation information based on the 3G model, and it is useful to the further formulation of the unban traffic information.
Capturing Mobile User Behaviors: A Network Measurement Approach
Authors: Xia Xiao , Wang Xiao Dong , Zhou Xing Ming
Published: September 2013

Understanding the online user behaviors in the mobile app markets is vital for the development of mobile app ecosystems. However, user transaction data is difficult to obtain by the general research community so that little efforts have been paid to measure such behaviors. Therefore, we develop novel approaches to characterize the user behaviors. We firstly exploit app networks from the app market, which are derived from user behaviors thus capture the behavior features. We then introduce the metrics of network measurement and propose a new method to measure the app similarity. Using these metrics and methods, we generate statistics of the app networks and reveal patterns and motivations of user behaviors, which may give fundamental data and motivation supports for future works.
Intelligent Information Retrieval System Based on Muti-Agent Model
Authors: Wu Zhao Dan , Shi Chang Feng , Lu Yi
Published: September 2013

The intelligent information retrieval model discussed in this paper is constructed by multi-agent. Currently, BDI cognitive theory is accepted widely by the scholars of this field, but the related researches mainly focus on the theoretical derivation and presentation of symbols, lack of model facing practical application. In this article, a dynamic rule-based reasoning model is proposed. The model based on BDI theory is an expression of agent intelligence. The basic logical reasoning of the BDI theory is extended in this article. The author not only introduces several functions to study the dynamic changes of agents mental state, but also give a detailed description of how to use the theory of production rules to express BDI-based reasoning. This article also studies and designs the agent communication mechanism in MAS. Finally, the intelligent information retrieval system is designed and implemented with the idea of AOP.
Study on the Modeling Method of Software Process Based on Timing and Parallel Automata
Authors: Sun Feng Wei , Yuan Li Juan
Published: September 2013

The finite automata theory extended and then the timing parallel automata theory is got and applied in the software process modeling. The establishment of group software process model is on the basis of timing parallel automata which realize the activity planning, resource allocation and progress control of process. The process model has been checked rationality and the rationality definition and check rules have been given. The process modeling method in this paper is intuitive, easy to understand and could describe the dynamic change of process, and also present the concurrent activity and provide the effective support to parallel work and cooperative work.
Using the UTAUT Model to Explore University Student Acceptance towards Moodle Reader
Authors: Lu Hsin Ke , Lin Peng Chun , Fan Shu Mei
Published: September 2013

With the advances in information systems and the Internet, universities have developed various e-learning platforms and blended courses that enable students to learn in a variety of ways. For system users, the acceptance and adoption of the system affects their learning processes and results. This research applied the United Theory of Acceptance and Use of Technology (UTAUT), proposed and validated by Venkatesh et al (2003), to explore factors that affect the acceptance of Moodle Reader, a system that supports English language learning. The results show that the constructs, performance expectancy and social influence have significant effects on behavioral intention, and facilitating conditions has a direct effect on user behavior and system usage. However, effort expectancy does not have an obvious effect on behavioral intention. Users intentions are dominant factors that consequently lead to gains in information systems performance. Furthermore, researchers classified students into different groups by gender, age and English learning experiences to study how individual differences affect adoption of the system. Multi-group analysis with PLS was used to examine the groups, and the results suggest that individual differences have no direct effect.
Desktop Virtual Maintenance Training Platform Based on NGRAIN
Authors: Wang Xu Ping , Chen Xiao Hu , Yao Chun Jiang , Ding Yao , Gao Shu Xiang
Published: September 2013

According to the current status of maintenance training, a framework of desktop virtual maintenance training platform was proposed on the basis of the NGRAIN ,making full use of advanced CAD technology and virtual reality technology. At last take the dump trucks as example, which proved that equipment virtual maintenance training can largely improve the cost-effectiveness of the maintenance training. The platform is a portable, economical solution for maintenance training, which not only can meet the needs of the training mission, but also provide a reference for the other virtual maintenance training system. In the future, the platform will have a very important practical significance and broad application prospects.
Design and Implementation of Information Management System of Social Welfare
Authors: Cao Wan Li
Published: September 2013

The social welfare information management system based on three-tier model and the client-server framework is built, which in close connection with social welfare archives information. At the same time, the amount of data, namely the underlying architecture code design, system architecture design, and resolve client desktop three levels to form. The social welfare system has the formation of the window, which informs retrieval of data management applications for comprehensive
Study on Application of Honeypot in Campus Net Security
Authors: Xin Huang , Yu Si Dong , Wan Rong Ze
Published: September 2013

With the development of digital campus construction, the campus network size has been rapid growth, but there are also many network security problems. The honeypot technology is introduced and based on the development of net technology, combined with the campus network security problem, the honeypot technology applied to the campus network in Guangxi Agricultural-vocational Technique College is put forward, which can make the security of campus network unobstructed
Personalized Search Ranking Based on Semantic Tag
Authors: Huang Lei , Wu Chan Le
Published: September 2013

The resource getting core of knowledge Service System is the search engine, but the most studies only put attention to improve efficiency, so as to mass resources retrieval results still allows the user to face "cognitive overload" problem when the user to use searcher to get knowledge, how to provide personalized search results become a research focus. This paper provide a new personalized search ranking method, which use semantic tag and user profile to personalized the search results. The experimental results indicate that the method is effective.
Design and Implementation of Keywords Extraction and Management System Based on Java Platform
Authors: Pan Teng , Liu Bing , Liu Yan Shuang , Li Yun Jie
Published: September 2013

This essay discusses the design and implementation of a keywords extraction and management system based on java platform. By using development methodology of domain engineering, the essay focuses on key technology of keywords extraction system and outline some ideas of the software architecture, in which identify basic principles and requirements of the development of keywords extraction and management system. The system functions are implemented with Java language in Eclipse environment. The system is featured with expandability, reliability, suitability and friendly interface demonstrated in application test of engineering practice and plays positive practical value in keywords extraction and management in technical domain.
Research on Factors Influencing the Flexographic Platemaking Quality
Authors: Hao Xiao Xiu , Yin Xing
Published: September 2013

Flexographic printing plate based on its soft characteristic has been widely used in the field of printing of corrugated box and plastic film. The system researches on the factors influencing the flexographic platemaking quality were carried out, including the different exposure time and the different development time affected the bulge image depth and plate thickness of the printing plate. The results provided a reliable reference data to obtain excellent printed matter, which determined the ideal platemaking parameters of the same type plate without doing any experiment.
Research of the Key Technology of AIS Base Station Web System
Authors: Yu Bo Ran , Zhang Shu Fang
Published: September 2013

This essay is to research the key technology of AIS base station web system. After specifically analyzing the AIS system and AIS message protocol, it majorly discusses the independent design of the AIS base station web system, which consists of node servers, one control center, and remote accesses; the system has been tested by the Aton department in Dalian. The result of test shows that this system does well in operating and administrating the AIS base station, and gets high evaluation of the Aton department.
Keywords Extraction Based on Text Classification
Authors: Yang Li Gong , Zhu Jian , Tang Shi Ping
Published: September 2013

In this paper, we propose new keywords extraction method based on texts classification. We first classify texts to determine their categories. Then determine weights of candidate words according to both their frequency and the relevance between text words and text category. Finally, keywords are extracted by sorting weights of candidate words. We conduct this experiment to show that on the premise of accurate text classification, this method can extract keywords effectively from text without title or with deviated title which can not reflect texts subject. Objective selecting of candidate word weighting function still needs to be further researched.
Storage Mechanism of Processing Magnanimity Small Files Applying HDFS Architecture
Authors: Xin Wang , Ma Jun
Published: September 2013

Pointing at the low efficiency problem of I/O operations of small files using HDFS application architecture, this article proposes a new method, that is, add disk buffer on DataNode to reduce addressing time of reading small files, and thus reduce reading time, and reduce the stress bringed by frequent NameNode access, so as to optimize the reading efficiency of small files. Experiment results show that the design programme is feasible, and adding disk buffer benefits for increasing efficiency of processing small files applying HDFS.
Analysis Method of Dynamic Extensible Service Model Based on Petri-Net
Authors: Zhang Can , Jiang Jing , Fan Cheng , Sun Jie , Yang Rui Min
Published: September 2013

It is a big challenge to realize the dynamic change of the network environment and users demands. A dynamic application customization and extensible service composition model is proposed in this paper. In order to guarantee the rationality of the service composition, the composition model of on-demand service that based on Petri net is proposed. Then the model is analyzed to validate whether the service composition can achieve the desired target. Finally, the result shows that the model can guarantee the correctness of extensible service, validate the rationality and effectiveness of the method.
Study on Structural Complexity of Transmission Case Production Line
Authors: Han Ping , Ma Li Li , Zou Nai Wei
Published: September 2013

Complexity level is one of the factors that affect manufacturing system design and control, so study on complexity quantification is gaining more attention. A method that combined information entropy and system structure factor is introduced to measure the complexity of transmission case production line. The method can realize structural complexity comparison among various production lines that provide reference for manufacturing system design, and in practice systems designed with lower complexity level are controlled and managed more easily and accurately.
A TPA Based Efficient Non-Repudiation Scheme for Cloud Storage
Authors: Ma Wen Qi , Wu Qing Bo , Tan Yu Song
Published: September 2013

One of differences between cloud storage and previous storage is that there is a financial contract between user and the cloud service provider (CSP). User pay for service in exchange for certain guarantees and the cloud is a liable entity. But some mechanisms need to ensure the liability of CSP. Some work use non-repudiation to realize it. Compared with these non-repudiation schemes, we use third party auditor not client to manage proofs and some metadata, which are security critical data in cloud security. It can provide a more security environment for these data. Against the big overhead in update process of current non-repudiation scheme, we propose three schemes to improve it.
Accessed Data Acquisition Model Based on Multi-Protocolequipment
Authors: Lai Sien , Shu Ting , Yang Guang Hui , Zhang Rui Lin
Published: September 2013

According to the requirement of multi-devices access to the computer in intelligent building monitoring system, combined with the principle of the upper computers data acquisition and the principle of configuration software, this paper proposes auppercomputerdata acquisition model by simulating the equipment into channels and the model is based on double buffers sampling technology. The model adopts the principle of device drivers;different equipments computer modules access to the model in the form of plug-ins.
Research on Improved BP Learning Algorithm of BP Neural Network
Authors: Chu Jian Li , Li Hong Yan , Chen Xiao Ji
Published: September 2013

Aiming at the existence of the BP neural network learning algorithm in the slow learning speed, the possibility of failure is large, poor generalization ability, there are multiple issues, extreme value point and network structure are difficult to determine, in this paper, we study algorithm improvement methods. Explain the algorithm principle, on the basis of three improved methods are studied, respectively is dynamic learning rate, conjugate gradient, improved error function. Among them, the dynamic learning rate, it reaches the learning rate of the hidden layer and output layer; Conjugate gradient, this paper gives three calculating formula; Improved error function, to solve different problems are also given in three types of error function. BP learning algorithm in this paper, the research contents, make the convergence stability, convergence speed, initial value sensitivity, it has good effect, which has large significant in terms of academic and applied significance.
Research of CAPP System Based on the Solid Edge
Authors: Cui Jiang Tao , Shen Guo Qiang
Published: September 2013

The three-dimensional CAPP prototype is studied based on Solid Edge platform using the technology of secondary development of VB. The system is able to complete part the selection of machining feature of the part, edit of process information and selection of process. The system finally output process card semi-automatic or automatic, through the module of process edit and the module of process card output module having the support of the process resource management module.
SQL Query Algorithm Based on Restricted Chinese
Authors: Ma Xiao Na , Li Bo Wei , Wang Lin
Published: September 2013

In order to make the users who didnt study the computer-related major can find the useful information in their familiar manner, it becomes a hot research topic to search in an interactive way using Chinese natural language. But because the complexity of Chinese, how to build of a formal model of natural language is always a difficult research problem. In this paper, by analysis the query sentence type in SQL based on the special database, we bring forward the rules and the context irrespective grammars of the restrictive Chinese that resolves the difficult comprehension problem in natural language processing. And aiming at the comprehension processing, we give the detailed arithmetic describing that can translate a natural language query of the restrictive Chinese to SQL.
Integrating PSP with Agile Process: A Systematic Review
Authors: Shen Meng Jiao , Rong Guo Ping , Shao Dong
Published: September 2013

At present, software process integration is a hot research issue which aims to improve software development. Thus, our team was organized to research this topic and proposed a cube for integration among different Classifications of processes. Nearly two years ago, we chose the integration of PSP and Agile process as our first sub-direction and showed some conclusions in [1. During the past two years, we got more findings in the research guided by systematic review method. As we all know that, agile process is a light-weight development process which is useful for managing unexpected changes while PSP is a typical plan-driven process which provides a disciplined way to develop software. Although they are distinct from each other, we find that PSP and agile process could complement each other.
An Optimization on Traffic Signals Sequence Scheduling
Authors: Zhou Bin Bin , Chen Lu Yi , Xu Ping , Liu Jing Jing , Dai Guo Yong
Published: September 2013

We research the issue of traffic signals scheduling, based on the use of real-time traffic information gathered by a wireless sensor network. In this paper, an optimization on traffic signals sequence scheduling has been put forward, which can be achieved based on the instant traffic data collected in the dynamically traffic environment. Afterwards, simulations have been conducted in several scenarios, and show that the proposed approach can achieve better performance in terms of traffic throughput.
PWIG - Interactive Paradigm of Direct Touch Interaction
Authors: Wang Feng , Fan Qi , Deng Hui , Yin Ji Bin
Published: September 2013

The direct touch interaction is considered as an important part of natural human-computer interaction and has become one of the hotspots in recent years. However, current touch interactive designs still rely on traditional WIMP paradigm seriously. To prompt and develop a dedicated user interface for direct touch interaction, in this paper, we explore the interactive features of the touch user interface through statistical analysis method. We classify and summary on the components of user interface from three current mainstream mobile platforms, further abstract the components for touch operation paradigm and finally propose an interactive paradigm based on the Post-WIMP environment: PWIG (Page/Frame, Widget, Icon/Button and Gesture) paradigm. After the evaluation of PWIG paradigm, we think PWIG paradigm is more suitable for direct touch interaction and should guide the design of the natural user interface for direct touch systems.
A SDN-Controlled ECMP QoS Solution for Data Networks
Authors: Cao Chang , Wang Jian Quan , Tang Xiong Yan
Published: September 2013

This paper presents a generic solution to guarantee the QoS of data network based on SDN control. This mechanism, called first detection and then ECMP switching (DES) has two points. The first one is sending specific control message periodical to detect out of order status of data flow. The second is switching the routing paths in variable periods according to the flows out of order proportion and QoS level. The mathematical analysis and simulation results both show DES good performance on guaranteeing the networks quality of services. And DES can be widely used in the SDN controlled data networks.
A Computer Network Defense-Oriented Scheme Description Language
Authors: Zhao Wei , Xia Chun He , Luo Yang , Liu Xiao Chen , Wu Wei Kang
Published: September 2013

Existing defense policy description language can describe some aspects of defense only, such as protection or detection but cannot express relationship among actions. Thus, it cannot accomplish a joint defense goal with the linkage of all kinds of defense mechanism for large-scale, distributed network attacking, such as Botnet. To solve this problem, we proposed a computer network defense-oriented scheme description language (CNDSDL), which can describe protection, detection, analysis, response, and recover actions as well as relationship among actions. These relations include sequence-and, sequence-or, concurrent-and, concurrent-or, and xor. It provides a unified coupling language description for linkage defense of different security devices. At last, we realized the simulation of schemes which are described by CNDSDL. The experiments results show that CNDSDL can be transformed to detailed technique rules and realize the defense effect of expression.
Parallel Algorithm for DC Resistivity Method Based on CUDA-Enabled GPU
Authors: Wang Tuo , Chen Rui
Published: September 2013

During the electrical prospecting, the three-dimensional forward problem has been the hot topic in the research of DC electrical method. When the forward computation results are solved through the finite element method and the finite difference method, a large-scale sparse linear equation set should be obtained, moreover the computation in the solution of large-scale linear algebraic equation sets are very heavy. If we adopt serial computation, the computing efficiency is very low, which greatly affects the application efficiency. With the increasing maturation of the parallel computer architecture, the Graphic Processing Unit (GPU) parallel computing modeling can apply in this field to enable the efficiency of the three-dimensional forward modeling to be significantly improved.
Research on the Network Topology and Reliability of the Communication System in Smart Substations
Authors: Wang Zhi Ming , Sun Xian Li , Liu Li , Zhang Xiao Rui
Published: September 2013

Communication network plays a vital role in smart substations. Different network topology provides different network performance, while the quality of network performance directly impacts the reliability of the entire system. In view of the network topology of smart substations, this paper compares the advantages and disadvantages of different network topologies as well as different network schemes of substation layer and process layer, and also analyzes the relationship between the reliability of network system and network topology, which play an important role in establishing a reliable and efficient smart substation system.
Structure Optimization Design for the Bed of Gear Hobbing Machine
Authors: Zhang Rong Chuang , Liu Ao Xiang , Wang Jun , Wang Wan Shan
Published: September 2013

In the optimization design of the gear hobbing machine bed, the finite element model is build and the static analysis and vibration modal analysis are performed. Then sensitivity analysis is used to gain the main design parameters which influence the bed property most. Furthermore, the multi-objective optimization design of the bed is performed in ANSYS Workbench with these design parameters as the design variables. At last, after all optimum proposals are showed up, Analytic Hierarchy Process is used to determine the weighting coefficient, and the most optimal solution is found out. As a result, the dynamic and static performances of the machine bed are improved under control of the machine bed mass.
Embedded Linux Transplant on the Platform of Meter Reading Concentrator Based on AT91SAM9260
Authors: Hou Si Zu , Wu Hui , Zhang Xiao Xu
Published: September 2013

This paper describes the meter concentrator design and the Linux system transplant on it. The process of Linux transplant include the establishment of a cross-compiler tool, At91bootstrap and u-boot transplant, Linux kernel customizing and compiling, jffs2 file system making. The embedded Linux with small size, high stability and reliability runs well on the platform of concentrator.
Design of BLDCM Control System with Fuzzy Adaptive Controller
Authors: Li Zheng Zhong , Guo Li Xia , Gao Guo Fang
Published: September 2013

To handle the shortages of conventional PID control, recur to the high-performance digital signal processor, combine the fuzzy self-adaption controller with brushless dc motor control system. The results show the control system structure is simplified and the performances of control system are improved comparing to the conventional PID control, the performance index is better than that in conventional PID control system, so the stability of brushless dc motor operation is strengthened.
Design and Realization on Central Control System for Multi-Media Instruction Window
Authors: Li Zhi , Yin Lin , Pang Yue
Published: September 2013

The central control system, as a very important device of computer-assisted instruction, has been applied generally in all different level of schools. However, due to all kinds of reasons, teachers and teaching administrators have long experienced the inconvenience on operating the projector and screen. The main device of common CAI system consists of computer, projector and screen which can actually solve such main problems such as the projector control and the lift control of screen. Since the projector is operated most often via the remote controller in the school, and under the circumstance that teachers familiarize the equipment operation by different levels, the operation and application can be incredibly inconvenient. The central control system aims to promote the control of CAI System up to a new level in the way that changes the operating methods of operators and simplifies the operating process. For the reasons and situations listed above, a high-efficient, simplified and low-cost management and application of teaching equipment is needed, and as a result of it, we develop and design the Central Control System for Multimedia Instruction Window.
Automatic Gain Control of EDFAs Using DSP
Authors: Nie Ling , Rao Yun Jiang
Published: September 2013

The recent development in automatic gain control (AGC) of Er-doped fiber amplifier (EDFA) based on the electrical feedback is reviewed briefly. We introduce a AGC method which uses the adaptive PID arithmetic with feedforward to realize gain clamping by automatically optimizing. The experimental results show that the AGC scheme based on DSP has the advantages of relatively low cost ,high reliability and good flexibility due to the potential of using different arithmetic.
Experimental Study of the Bolted Joint Surface Contact Angle
Authors: Zhang Ai Ping , Zhang Dong Mei , Liu Zhi Feng
Published: September 2013

We will study the effective value of the angle which affect on the bolted joint surface by the experimental research method. It gets the effective angle under different conditions in the experiment by the way of researching the joint surface stiffness which changing during the joint surface area changing in the paper. This results provide valid reference for the mechanical structure design which with the bolted joint surface, so as to achieving the purpose of more efficiency during the mechanical structure design.
The Application of PLC in the Automatic Packing Machine Control System
Authors: Guo Li Xia , Li Zheng Zhong
Published: September 2013

This paper analyses the working process of small vertical automatic packaging machine, the overall solution of the automatic packaging machine control system based on PLC has been put forward. The design of hardware and software structure of PLC control system has been expounded emphatically. The control system human-machine interface and control procedures flow charts have been given.
Design of Zigbee Technology-Based Wireless Intelligent Home Control System
Authors: Jing Xing Hong , Liu Chen
Published: September 2013

This article is about the wireless intelligent home control system design for 2.4GHz wireless communication with the central control board STM32 based on Zigbee technology, and adopting CC2430 module to form wireless sensor networks. The system consists of a main controller and multiple wireless network nodes to enable the users to easily and conveniently control and monitor the home environment and security. With advantages of easy use, simple operation, convenient networking, and good scalability, the system has good application prospects.
Design of and Research on PID Algorithm-Based Intelligent Vehicle Control System
Authors: Chen Liu , Jing Xing Hong
Published: September 2013

Feedforward - Improve PID algorithm is an effective method of intelligent vehicle control, the algorithm not only enables the intelligent vehicle system with a good dynamic performance and speed of response, but also improves the adaptability and robustness of the system, making the intelligent vehicle able to stably operate on different runways at a faster speed. This method has good application prospect.
Decoupling Control for Three Degrees of Freedom Servo System Based on Neural Network
Authors: Li Zhen Bi , Zhao Bai Ting , Jiang Yuan Yuan
Published: September 2013

Three degrees of freedom servo system (TDFSS) is one of the key equipments of inertial testing, such as evaluation of inertial navigation system and test of inertial components. It is a kind of servo system with some non-linearity and uncertainty. This thesis takes advantage of the characteristic of Neural network in approaching non-linear function, applies the Neural network on the three-axis simulator, provides a method for the TDFSS. Simulating experiment has been used to verify the advantage of the scheme and achieved completely decoupling control. The scheme gives good control precision, and it is simply structured and easily implemented.Introduction
Energy-Efficient Overload Control Algorithm to Parlay Gateway in Next-Generation Electric Power Communication Networks
Authors: Ma Wei Zhe , Li Yue Hua , Song Man Rui , Meng Fan Bo
Published: September 2013

This paper studies the overload control problem of the Parlay gateway in next-generation electric power communication network. First, this paper analyses the effectiveness and fairness of the overload control of the Parlay gateway. And then taking the energy efficiency of the electric power communication network as target, we establish the optimization model of energy efficiency overload control. Thirdly, we put forward an energy efficiency overload control algorithm based on the ant colony algorithm. Simulation results show that our algorithm is feasible and effective.
Research on a New Access Control Technology
Authors: Huang Kun , Jian Yun Song
Published: September 2013

The term usage control (UCON)[1] is a generalization of access control to cover obligations, conditions, continuity (ongoing controls) and mutability. Traditionally, access control has dealt only with authorization decisions on a subject's access to target resources, and as a consequence of access have not been systematically studied. In this paper we motivate the need for usage control, study a family of ABC models as a core model for usage control and show how it encompasses traditional access control, such as mandatory, discretionary and role-based access control,. In addition, we also discuss architectures that introduce a new reference monitor for usage control and some variations.
Nonlinear Ethanol Gasoline Optimal Control System Based on Hammerstein Model
Authors: Luo Zhong Ming , Liu Zhuo Fu , Wang Fan , Lin Ling Sen
Published: September 2013

In this paper, a Hammerstein model based on forward feedback neural networks was proposed to tackle the optimal control of a nonlinear MISO system. The method offers a solution to the optimization of internal models. The optimal control with the preset value was implemented under both static and dynamic optimal indices. The simulation results showed that the algorithm can fulfill the task of blending ethanol and gasoline effectively.
Simulation Analysis in Cylinder Hydraulic Synchronous Control System of Main Drive System of Heavy Forging Hydraulic Press
Authors: Huang Guo Qing , Chen Yu , Yu Jin
Published: September 2013

An overly large passive synchronization system will be needed in a Heavy forging hydraulic press while entirely relying on passive compensation. And it will increase developing and maintain costs of the equipment. Therefore the main drive system should be considered. The paper developed mathematical model of the cylinder of the main drive system from the perspective of the main drive system of the heavy forging hydraulic press; the eccentric load points, load size and speed of moving beam are the three major factors that influence the synchronization of cylinders. Synchronous Controller was linked in the active corrective procedures and simulated based on Simulink, simulating results show that the eccentric load points have the biggest influence on the cylinder synchronization, while the speed produces smaller effect.
Research on Yaw Stability Control of Active Front Steering Based on BP Neural Network PID
Authors: Wei Jie , Shi Guo Biao , Lin Yi
Published: September 2013

This paper proposes using BP neural network PID to improve the yaw stability of the vehicle with active front steering system. A dynamic model of vehicle with active front steering is built firstly, and then the BP neural network PID controller is designed in detail. The controller generates the suitable steering angle so that the vehicle follows the target value of the yaw rate. The simulation at different conditions is carried out based on the fore established model. The simulation results show the BP neural network PID controller can improve the vehicles yaw stability effectively.
A Study and Discussion on Inspection Method of Electrode Defects of the Li-Ion Power Battery
Authors: Han Liang , Liu Yong Ming , Xiao Feng
Published: September 2013

The shortage of energy prompted the Li-ion power battery to become the new alternative energy. As the main body of the Li-ion power battery, the electrode has a great influence on safety, performance, cycle life and capacity of the battery. Thus, it is necessary to inspect surface defects of the electrode precisely. Then, a new inspection method is proposed in this paper. In the method, the machine vision based on smart camera and combined with LabVIEW which is the graphical and virtual programming software is applied to inspect defects of the electrode. This combination of hardware and software is helpful to improve the efficiency of the electrode inspection.
Impedance Control of Dual-Arm Systems Based on the Object with Senseless Force
Authors: Jiang Li , Zhou Yang , Wang Bin , Yu Chao
Published: September 2013

A novel approach to impedance control based on the object is proposed to control dual-arm systems with senseless force. Considering the motion of the object, the statics and dynamics of the dual-arm systems are modeled. Extending the dynamics of dual-arm system and the impedance of object to the operational space, impedance control with senseless force is presented. Simulations on a dual-arm system are carried out to demonstrate the performance of the proposed control scheme. Comparing with position control, results of numerical simulations show that the proposed scheme realizes suitable compliant behaviors in terms of the object, and minimizes the error of the relative position between the manipulators even without force sensors.
The Design of Servo Loop Bandwidth Based on Fuzzy Control Theory
Authors: Tao Min , Wang Xin Rong
Published: September 2013

Servo loop bandwidth is an important parameter of the ship-borne servo control system to track targets fast, accurately, stably. This paper analyzes the structure and principle of servo system and the PID controller algorithm. Based on the fuzzy control theory, applies the parameter self-tuning fuzzy PID control technology to the servo system position loop successfully, and gets a satisfactory control performance.
Design and Simulation of the Microstrip Antenna for 2.4 GHz HM Remote Control System
Authors: Deng Qun , Zhang Wei Qiang , Jiang Jin Tao
Published: September 2013

Along with the development of the aviation industry, HM sports get more and more attention, it was a very hot sport at home and abroad, the remote control technology of model aircraft is also have been developed. In the present model aircraft remote control systems, the antenna is usually dipole antenna, dipole antenna is larger, higher power consumption . In view of the above shortcomings, this paper proposes a way that using micro-strip antenna instead of the traditional antenna. Through the discussion of the microstrip antenna's working principle, this paper designed a microstrip antenna works in 2.4 GHz model aircraft remote control system. According to its actual application , the material, shape, and the type of the microstrip antenna are determined, and the size of the antenna is calculated by the equation and the software , then the model of the antenna is built and simulated in ADS, finally the best parameters are obtained through optimizing and matching to meets the requirements.
Remote Monitoring and Control System for Communication Stations Based on JavaFX and Web Service
Authors: Yang Yue Xin , Sun Lian Shan
Published: September 2013

The paper proposed a remote monitoring and control system based on JavaFX and Web Service .In the system, communication stations were disbursed over a wide area. In a cell site, different kinds of sensors communicate with station program based on ARM. Cell sites uploaded the information of alarms and videos to the server. Server provided remote methods to the remote client through the Web Service. Operation of the system shows that, the proposed system has good openness and expansibility.
Nonlinear Cascade Control of the Joint-Structure in EMS High Speed Maglev Train
Authors: Huang Jin Hui , Hao A Ming , Li Xiao Long , She Long Hua
Published: September 2013

In order to strengthen the high-speed maglev trains anti-disturbance ability, the traditional linear cascade control algorithm has been improved. Firstly, the mathematical model of the joint-structure in the high-speed maglev train was established according to the dynamics and electromagnetism theory.Secondly,the advantages and disadvantages of the linear cascade control algorithm were analysed.Thirdly,the relationship between the current loop and position loop control parameters and the system performance was discussed .Finally,the nonlinear cascade control algorithm of the joint-structure in high-speed maglev train was introduced. In the algorithm,the current loop controller gain would be reduced when the positional deviation increases. At the same time, the gain of the position loop controller would be increased. The simulation results show that the suspension joint-structure gap changes caused by the failure of a single suspension point or disturbing force ,of systems with nonlinear cascade control algorithm were less than that of systems with linear cascade control algorithm. The new algorithm can improve the anti-disturbance ability of the maglev train,It can also ensure the safety and comfort of passengers.
Error Analysis of Closed-Loop Control for Spacecraft Orbital Transfer Using Monte Carlo Method
Authors: Zhou Yang , Yan Ye , Huang Xu , Yi Teng
Published: September 2013

The true trajectory of spacecraft disperses from the nominal due to kinds of errors and perturbations, including environment, actuator and sensor uncertainties. This paper studies the error analysis problem of closed-loop control for spacecraft orbital transfer via Monte Carlo method. At first, errors that affect the true state are introduced and a navigation-target-correction loop system for Monte Carlo simulation is built. A dynamical model for orbital transfer is established, based on which both the extended Kalman filter (EKF) algorithm and correction maneuver control algorithm are developed. Precision analysis is studied of high eccentric orbital (HEO) transfer under open-loop and closed-loop control respectively. The simulation results prove the validity of the proposed method.
Adaptive Neural Network Fuzzy Control Plane Double Inverted Pendulum
Authors: Zhang Su Ying , Wang Ying , Liu Jie , Zhao Xiao Xue
Published: September 2013

Double inverted pendulum system is nonlinear and unstable. Fuzzy control uses some expert's experience knowledge and learns approximate reasoning algorithm. For it does not depend on the mathematical model of controlled object, it has been widely used for years. In practical engineering applications, most systems are nonlinear time-varying parameter systems. As the fuzzy control theory lacks of on-line self-learning and adaptive ability, it can not control the controlled object effectively. In order to compensate for these defects, it introduced adaptive, self-organizing, self-learning functions of neural network algorithm. We called it adaptive neural network fuzzy inference system (ANFIS). ANFIS not only takes advantage of the fuzzy control theory of abstract ability, the nonlinear processing ability, but also makes use of the autonomous learning ability of neural network, the arbitrary function approximation ability. The controller was applied to double inverted pendulum system and the simulation results showed that this method can effectively control the double inverted pendulum system.
Research on Function Real-Time of Substation Automation System Based on IEC61850
Authors: Wang Xian Pei , Zhang Qi Lin , Zhao Yong Biao
Published: September 2013

The function real-time of substation automation system based on IEC61850 depends on the distribution mode of logical nodes, the processing speed of logical nodes and the communication delay between logical nodes.The realization principles of functions free distribution are introduced based on IEC61850, take bus protection function and distributed interlock function examples, the functions are deposed into the connection diagram of logical nodes and their communication events are introduced in great detail. The simulation models of D2 substation which has unified network or two-tier network are established with OPNET. The communication events of bus bar protection function and distributed interlock function are simulated and analyzed based on this mode. The rationality of distribution mode of systems functions is quantitative analyzed which provide guidance to improve the real-time performance of systems functions and network structure.
New Active Light-Emitting Warning Guidance System
Authors: Yan Yang , Song Jie
Published: September 2013

Drivers driving safety on the highway is one of the important researches about the national road traffic safety, and how to reduce the high incidence of special sections accidents has always been the primary task of the research. When driving on the highway at night or in bad weather, drivers vision will be limited because of the poor light conditions and their recognition and perceptual speed of the road distance will be reduced, which will easily lead to major accidents. In order to solve this problem, the article introduces a new active light-emitting warning and guidance system which can automatically identify the field environment. After electrified, each grid will automatically set up the wireless network, and create a series of dynamic warning effects. It has been proved by field experiments that the developed system could stay in sleep mode during the day, and would be woken up at night or in rainy and foggy weather and automatically warned and guided the drivers driving on the road. The system will effectively enhance the drivers vision and reduce the accident probability.
The Phoneme Automatic Segmentation Algorithms Study of Tibetan Lhasa Words Continuous Speech Stream
Authors: Zhang Jin Xi , Yu Hong Zhi , Ma Ning , Li Zhao Yao
Published: September 2013

In this paper, we adopt two methods to voice phoneme segmentation when building Tibetan corpus: One is the traditional artificial segmentation method, one is the automatic segmentation method based on the Mono prime HMM model. And experiments are performed to analyze the accuracy of both methods of segmentations. The results showed: Automatic segmentation method based tone prime HMM model helps to shorten the cycle of building Tibetan corpus, especially in building a large corpus segmentation and labeling a lot of time and manpower cost savings, and have greatly improved the accuracy and consistency of speech corpus annotation information.
Research on Channel Equipment Reliability Analysis Methods of Measurement and Control System of Ship-Borne
Authors: Liu Si Fang , Guo Jiu Lin , Xu Jian Hong , Guo Hong Qiang
Published: September 2013

Aiming at the feature of failure occurs frequently, check links, difficult to position for channel equipment of measurement and control system of the ship-borne, according as to equipment index that reflects equipment performance-signal power level, analyzes channel equipment reliability by different mathematical methods, and based on the previous equipment test results of data analysis, presents the method of wavelet neural network, to analyze equipment reliability and forecast malfunction .