bluuebunny/crossref_metadata_2025 huggingface dataset:
The Software Design and Development of Wireless Terminal for Intelligent Home Control System Based on Android4.0
Authors: Cao Jun Wu , He Jian Feng , Wang Yuan , Wang Qin
Published: December 2014

This paper takes the enterprise actual demands as the starting point, designing a intelligent home control system which is based on Android4.0 and Wi-Fi home server. For the wireless terminal software design framework of home control system of the client, combining some examples to achieve an organic unity of four home wireless control modules which are lighting control modules, air-conditioning control modules, appliance control modules and curtain control modules. The Android application programming, graphical interface designing, the background data processing and database designing are discussed in detail, as well as the development process of UDP communication between intelligent terminal and the home gateway, which is tested effectively on the TV, DVD, lighting, air conditioning, acoustics, curtains and other wireless control equipment based on Android4.0 intelligent terminal, the results of tests show that it gets some good effects on the practical applications of enterprises.
Hybrid Method Based on Artificial Potential Field and Differential Game Theory for the UAV Path Planing
Authors: Tian Feng , Zou Ji Feng , Zhang Tong
Published: December 2014

In this paper, a method of the UAV path planing in the complex environment by using artificial potential field and differential game theory is introduced. This article studies the pursuit evasion game of the dynamic path planing for the UAV. The fly zone of either the pursuer or the evader is divided into two categories, namely the obstacle areas and the obstacle-free areas. So we can use the artificial potential field in the obstacle areas,and we use differential game theory in the obstacle-free areas for the UAV. This method can apply to pursuit-evasion game in the complex environment for the UAV path planing.Not only the UAV can avoid obstacles but also they can find the best capture path.Finally,the simulation results verify its correctness and validity .
Research on Intrusion Detection Technology Based on Ad Hoc Network
Authors: Luo Yong Jian , Meng Jin , Zhao Hai Yan
Published: December 2014

As the second line of defense, intrusion detection is the necessary means of getting the high survivability. Intrusion detection technology and its classification is described in this article. And based on the features of Ad Hoc network, the existing new network intrusion detection technology and its characteristics suitable for Ad Hoc network are summarized.
Model Simulation of the Software Compatibility Testing Based on Android System
Authors: Wang Xiang Gang
Published: December 2014

in current, the software compatibility testing of Android system has been a difficulty, mainly because the software features of which has bigger difference cannot establish constrained detection analysis model. To solve this problem, a new compatibility analysis model of Android system is proposed. Android portfolio software is made compatibility testing modeling with a decomposition thought. The software features after decomposition are made repartition test modeling. The steady probability in different region combination is analyzed, and thus it represents the compatibility of Android system. Simulation results show that this kind of model can preferably complete the compatibility analysis work of Android system.
Noise Influence of High-Speed Train Based on Air Dynamics
Authors: Wang Xiao Qin
Published: December 2014

How to control aerodynamic noise of high speed motor train, this paper starts from the basic theory of hydrodynamics and acoustics, it adopts method of numerical simulation and applies Fluent and VirtuaUab Acousticsand software to make study on characteristics of aerodynamic noise for high speed motor train, the test results indicates that in the stable flow distribution, the baric gradient is relatively larger when its surface pressure is in area with large change in curve curvature, when it is in the area with even curve change, the baric gradient is relatively smaller. In different gradient, the train head, the maximum pressure and the maximum negative pressure ratio of air-conditioner air deflector predicate are in proportion to the square of train speed.
Knowledge Pushing Technology Based on the Knowledge Context Node Similarity
Authors: Yuan Xiu Li
Published: December 2014

In order to meet the users'demand of knowledge and use knowledge efficiently,this paper adopts modeling methods of multilayer and multidimensional context tree to complete the establishment of the knowledge context tree, build the algorithm of the context entity similarity and realize the knowledge push, improve the similarity of the user with the necessary knowledge, so that a kind of very valuable method for pushing knowledge has also been put forward.
Information Leakage of a Kind of Block Cipher Structure
Authors: Huang Yong Hong , Wang Kun , Gao Ming Xia
Published: December 2014

The block cipher New Structure II was designed at eprint 2011, it could be treated as a generalized Feistel structure. By checking the property of the linear permutation, we find a full round differential in New Structure II with probability 1. Since this differential can not distinguish the correct unknown key from the wrong keys, we fail in launching a key-recovery attack on this structure. However, we may guess 1/4 part of the plaintext without calculating the key. And we notice this weakness may cause insecurity in some special environments.
Research on Goods Recommendation Strategy Based on Decision Tree
Authors: Gao Jie
Published: December 2014

Firstly, associative-sets-based collaborative filtering algorithm is proposed. During the process of personalized recommendation, some items evaluated by users are performed by accident, in other words, they have little correlation with users' real preferences. These irrelevant items are equal to noise data, and often interfere with the effectiveness of collaborative filtering. A personalized recommendation algorithm based on Associative Sets is proposed in this paper to solve this problem. It uses frequent it sets to get associative sets, and makes recommendations according to users' real preferences, so as to enhance the accuracy of recommending results. Test results show that the new algorithm is more accurate than the traditional. Secondly, a flexible E-Commerce recommendation system is built. Traditional recommendation system is a sole tool with only one recommendation model. In e-commerce environment, commodities are very rich, personal demands are diversification; E-Commerce systems in different occasions require different types of recommended strategies. For that, we analysis the recommendation system with flexible theory, and proposed a flexible e-commerce recommendation system. It maps the implementation and demand through strategy module, and the whole system would be design as standard parts to adapt to the change of the recommendation strategy.
A Study on Improving Methods of Multi-Source and Multipath in Large-Scale Examination System Cloud Environment
Authors: Yang Cheng Yong , Li Zhen Yu , Gu Yue Dong , Fan Hua
Published: December 2014

With the enlargement of the test scale, the examination system has become the direction of large-scale. Large-scale examination system has advantage over the calculation in a cloud environment. But more candidates and examinations lead to network congestion. On the solutions of network congestion, there has been a lot of wan processing methods. But they are not suitable for application to run in the LAN's examination system according to actual condition. Therefore, this paper will introduce an improved method of multi-source multipath to alleviate the burden to the public network channel in the process of network data transmission. In order to improve the stability of the system by optimizing software to reduce the dependence on hardware. In the end, this paper will discuss the performance of this strategy.
Applicance of Data Protection by Flashback in Oracle 11g
Authors: Wang Er Nuan , Zhang Chun Yan
Published: December 2014

With the coming of the era of big data, the importance of data is more and more concerned, Oracle also provides various of ways to protect user data, in which the flashback technology is the most useful to user data. And with the improved version, the flashback technology has also been continuously enhanced.
Research on the Applications of Cloud Computing in the Accounting Modernization
Authors: Ren Min , Gu Wen Lin
Published: December 2014

Cloud computing is a new concept emerged in the IT sector in recent years. Cloud computing can be used more easily and quickly in financial applications, adjusting resource being used by accounting software dynamically, reducing overall investment in accounting modernization, improving the utilization and the effect of IT equipment. In this paper, starting from the concept of cloud computing, we summarizes the status of development of accounting modernization, and discusses the cloud computing service model, the applications of cloud computing in the accounting modernization as well as the advantages and problems.
Design and Implementation of Campus Culture Service Module on Library Unified Information System
Authors: Xie Qiao Ru
Published: December 2014

The thesis is based on the university network management work in combine with the characters and requirements of the school. A service-oriented architecture is adopted to integrate multi-business systems across different platforms. The unified authentication, single sign-on, data exchange and share are implemented. It improves the school normalization level, broadens society service fields of the vocational colleges at the same time avoids the rebuilding in the normalization work and saves the investment. A reliable information base is supplied for the next stage virtual campus construction.
Research on Power Supply Enterprise Performance Management System Based on Neural Network Algorithm
Authors: Duan Xiao Qi
Published: December 2014

The electric power enterprises are closely related to the national welfare and the livelihood of the masses, nowadays are faced with the challenges from monopolistic management to the competition in the market. In this paper, building performance management system based on neural network for power supply enterprises to evaluate operating performance demonstrated the practical value of the model. Based on the summary of private listing performance management system on the basis of relevant literature, from the financial perspective and non-financial perspective of the establishment of private manufacturing listing performance management system, and constructs the neural network based on neural network and model performance evaluation system. Neural network model of the application results show that the neural network in the performance management system application feasibility. From the shareholders' interests, performance management system can improve the operating performance of the related suggestions in the financial and non-financial aspects.
Design of the Online Stereo Resources Platform
Authors: Wang Qiao Ling
Published: December 2014

It is the online stereo teaching resources platform that provides teachers the digitized and three-dimensional teaching spaces for managing courses and developing teaching online. The teaching resources platform is an online platform, which is widely shared by gathering various curriculums, multiple teachers and a large amount of students. It favorably supports the establishment of the autonomous, collaborative and interactive teaching and learning model.
Research on Information Management of Sports Archives Based on Multimedia Technology and Network Technology
Authors: Yin Zheng Hui
Published: December 2014

Since the beginning of the new era, the modern information technology and multimedia technology as the core of the network technology has got the rapid development, which has been applied in the field of archives and brought lots of opportunities and challenges for the management of sports archives in universities and colleges. In this paper, it will be based on the interpretation of physical files in colleges and universities, putting forward the application of multimedia technology and network technology in sports archives in colleges and universities, so as to promote the development of archives cause in colleges and universities
Research on the Design and Implementation of Student Information Management System
Authors: Zhao Hui Yan , Sun Qi
Published: December 2014

With the continuous improvement of science and technology, the management of school students is a very important part of the educational administration and it is the core and foundation of the entire management. Due to further expand of the size of the school, the number of students increased year by year and the management of student situation has become more and more complex. Faced with such a complicated task, if we allow individuals to manage documents, it will be very time consuming. In recent years, with the rapid development of the computer, the computer has shown its great role in all areas of society. Needless to say, the effective introduction of the computer management in school educational administration is very significant for promoting school management system and improving the quality of teaching. For these reasons, therefore, the development of student management system is also a necessary step in the era.
Research on Application Computer Technology in Project Management
Authors: Dai Wen Zheng
Published: December 2014

This article detailed introduces the system integration project management present situation, analyzes the system integration project initial stage, executing stage and completion stage of each phase of the project management content. And the problems existing in the process of system integration project management are analyzed. And these problems include project scope management. Project team management is not perfect and project risk management is not science, etc. Based on the relevant theory of the system integration project management at the same time, it analyzes the cause of system integration project management problems, and puts forward the corresponding improvement countermeasures. Finally based on the theory of project management nine knowledge areas, according to the basic process of project management: start, planning, executing, controlling and closing to discuss a specific system integration project. The concrete covers the scope of the project management, human resource management and risk management, and other areas of the project management body of knowledge.
Research on Public Health Service Systems Based on Cloud Computing
Authors: Wu Hong Jiang , Liu Xiang Yang , Zhao Hai Yan , Li Xiao Ting
Published: December 2014

This research is aimed at building a real time public fitness service system, with massive data storage and processing ability, to meet the public fitness service demand. In this research, we focus on the system positioning, cloud delegation model, service model, service content and operation mechanism of the fitness service system. Method used was system analysis method.
Design of High Precision Control for Flat Panel System Based on Free Pendulum
Authors: Zhao He , Hou Tao
Published: December 2014

The method of dual sensors closed-loop control is designed for the flat panel control system base on free pendulum.With this method, the angle of the free pendulum is detected firstly by adopting incremental photoelectric encoder,and then with the free swing angle as the set-point,the real time rotation angle feedback of the flat panel is detected by the angle sensor to form closed-loop control. The test results shows that this method well accomplishes the detection function,and implements high precise control.
Researches on the Virtual Security Issues Based on Xen Cloud Computing Platform
Authors: Jiang Bo En
Published: December 2014

With the development of cloud computing, its security problem gets more and more attention. This article comprehensively analyses many problems about cloud computing and virtualization security, elaborates the research status of virtualization security and puts forward the development direction in the future. This paper first describes cloud computing architecture, and then introduces the virtualization technology, focusing on virtualization security issues and research status, and takes Xen platform for example, introduces the Xen virtualization security issues, finally the future development was prospected.
Design Practical System Based on Packet Tracer Technology
Authors: Yu Wan Tao
Published: December 2014

This paper combines with the actual background of the university experiment teaching of computer network, analyzes the construction situation and the existing problems of networking practical training system. Then it designs and implements the network practical training system based on embedded platform. The system mainly consists of three parts: the experiment control system, embedded experiment box and training courses. PC Terminal as the client of experimental control system is developed based on .NET/C#, which supports user login via online or offline mode, updating training courses intelligently and etc. Based on ARMS embedded microprocessor and embedded Linux operating system, it designs and implements the embedded experiment box ServerBox, which interacts with user by matrix keyboard and QT interface, analyzes network protocols based on Netfilter framework in Linux kernel, and extends ARP packet processing driver in Linux kernel to implement the visual analysis and intervention for ARP protocol. The PC Terminal has a connection with ServerBox by serial port, and communicates with each other by user-defined protocol. The system has passed the project acceptance inspection, and the first edition has been used in many colleges and universities. Its effect in improving students' knowledge and practice skills for the principle of network has been gaining recognition.
Analysis on the Application of Virtual Reality Technology to the Development of CBT in Aviation Industry
Authors: Wen Chao Ran , Liu Hu , Wang Zhen Wei , Fan Yue Qiang , Zhao Peng Xin
Published: December 2014

The author reviews the profile of CBT and the application of virtual reality in the development of CBT, analyzing the application of virtual reality technology to the development of CBT from three aspects: the development of CBT, comparisons among different development tools of CBT and the comparison of application among different apartment of aviation industry, laying the foundation of developing CBT of aircraft type of our own theoretically.
The Analysis of Calculation in SDN Service Deployment
Authors: Tang Xiao Tian , Gao Ming , Wang Wei Ming , Dong Li Gang
Published: December 2014

SDN is the current hot research topic in the network area. It becomes high-profile because of being considered as the direction of next-generation network. Service deployment is the core content of northbound interface and the focus for researchers in SDN. So far, there are still rare successful SDN application cases, the relevant researches on service deployment are even fewer. Based on the concept of service deployment, we bring up a service deployment framework in SDN, build a service deployment model, and then study the problem of price calculation during the process of service deployment and present some corresponding optimization algorithms.
The Kinematic Analysis and Trajectory Planning Study of High-Speed SCARA Robot Handling Operation
Authors: Ma Guo Qing , Yu Zheng Lin , Cao Guo Hua , Zheng Yan Bin , Liu Li
Published: December 2014

Successfully developed of high-speed SCARA robot provides the possibility for fast handling. After analyzed the mechanical structure of SCARA robot, the kinematics equations were built to analyze forward and inverse kinematics problems based on modified D-H coordinate system theory. The trajectory planning was achieved by using the cubic polynomial interpolation method in joint space over the path points combined with motion parameters, the kinematics and trajectory planning were simulated by using matlab simulation platform. Simulation results show that robot parameter design is reasonable and the trajectory planning by interpolation calculation in joint space is feasible.
A Software Watermarking Algorithm Based on Binder Technology
Authors: Che Sheng Bing , Guo Dong Mei , Wang Ye Mao , Pan Li Li
Published: December 2014

Information hiding in a resources section’s redundancies has large amount of watermark embedding, and the software watermarking based on PE file resources section format has high concealment. This paper combined this two algorithms’ advantages, and embedded the watermark information in these two ways. It also introduced the information hiding technology based on ICON file and binder technology to realize the tamper-proof function of the watermark. Experiments shows that this scheme not only improves the embedded information capacity, but also overcomes the problem that the embedded watermark are susceptible to tamper-proof attack. So the new scheme improves the watermark’s comprehensive performance, and create a more secure and robust software watermark.
TCP Proxy with Data Redundancy Elimination and Compressing Technology
Authors: Yu Li Li , Chen Hong Yuan
Published: December 2014

TCP protocol is a connection-oriented transmission protocol with mechanisims such as sliding window,data acknowledgement,slow start and congestion avoidance to ensure reliability[1].But these machanisims bring low efficiency because of delay and loss.Thus,we need to design an improved TCP protocol to achieve the purpose of WAN acceleration.This paper mainly introduces two kinds of WAN accelebration technology of TCP flow optimization and data cache technology.TCP flow optimization uses TCP transparent proxy technology based on an improved TCP protocol to solve the problem of large delay and high packet loss rate.The improved TCP protocol includes slow start improved,large receive buff, the improvement algorithm of congestion avoidance,etc.Besides,data redundancy elimination and compression technology[2] are also used in TCP data interation to reduce link load and improve transmission efficiency.
An Anti-Lost Data Security Storage System for Smartphone Based on Cloud Service
Authors: Zhao Wei Wei , Wang Zhi Guo , Cao Wei , Liu Hong Yan
Published: December 2014

An anti-lost data security storage system for Smartphone has been proposed in this paper. The encryption key of data and the identity are stored in USBKey, so as to realize the physical separation of the encryption key and data, and the matching of USBKey and Smartphone. The System solves the problems of data recovery and backup in Smartphone after the phone is lost. The results indicate that the system has good data protection features, such as encryption and decryption fast, secure and reliable transmission, anti-lost, etc.
Membrane Computing Based Virtual Network Embedding Algorithm with Path Splitting
Authors: Lian Qi , Wu Zhi Qiang
Published: December 2014

Network virtualization is recognized as an important enabler technology to diversify the future Internet and the Virtual Network Embedding problem is major challenge to fulfill it. In this paper, we proposed a parallel Virtual Network Embedding algorithm with Path splitting on the basis of membrane Computing (VNEPC). And more importantly, it is one phase embedding algorithm that maps virtual nodes and virtual links in the same phase without decomposing the VNE problem. Extensive simulation results show that our proposed VNEPC algorithm outperforms the existing algorithms in long-term average revenue, acceptance ratio and long-term R/C ratio.
Research on Trust Computation Models in Wireless Sensor Networks
Authors: Zhang Jin Wen , Gu Xiang
Published: December 2014

Wireless Sensor Network security is not only threatened in the time of passing information between nodes, but also in processes of data generation. Cryptography is therefore unable to prevent attacks from nodes inside the network after those nodes have been captured. The trust model can play an important role in this aspect. It can effectively identify malicious nodes, self-ish nodes, and low competitiveness nodes in the network to improve its performance. This paper focuses on the technical characteristics of trust management and design. It classifies existing trust computation models into several types according to their computing theories at first. Then it discusses several classic trust management frameworks and analyzes their advantages and weaknesses. At last, the paper concludes general problems of current models and points out future research directions.
Application of Force Control Configuration Software in PLC Experimental System
Authors: Wang Chun , Xu Wen Na
Published: December 2014

The course Mechanical and Electrical Drive Control, which is a compulsory course for the mechanical and electrical engineering in our school, has a strong engineering practicality. A large number of experiments are taken in this course to achieve good teaching effect. By analyzing of the status of PLC experiment links, this paper put forward to control object according to force control configuration software. Practice shows that this new system can meet the requirements of the PLC teaching experiment, which has the characteristics of lowly experimental cost, strongly commonality, easily maintenance and so on.
Database Design of Pop Music Website Development
Authors: Yue Ying
Published: December 2014

With the rapid development of network technology, music websites gradually become a popular, and the emergence of pop music website is to meet the people's strong demand for popular music, because database plays an important role in the design of website, studying the database design of pop music website development is important. From the conception of database design, firstly, this paper studies conceptual design for the database design, conceptual design is mainly reflected in the form of an E-R diagram; then conducted logical in the database design, logical design is expressed by the pattern of table structure; finally, studies the security design of database design, describes the security policy of database. The studied content of this paper plays a supporting role for popular music website design, promotes the combination of music and websites, and enriches people's leisure life.
Research of Computer Virtual Laboratory Model Based on Cloud Computing
Authors: Shi Lei , Zhao Hui Ran , Zhang Kun
Published: December 2014

According to the problems that the current computer lab resource utilization is low, large maintenance workload, update the cost is high Etc. In this paper, the application of cloud computing and virtualization technology, a model of computer laboratory construction based on cloud computing and virtual machine technology are given, good results are obtained through practical application.In recent years, the construction of computer laboratory in our country has achieved great development, Nearly all colleges and Universities have built many computer labs. However, in these completed labs, the computer equipment is single, lack of effective resource integration between devices, resulting in laboratory and the work efficiency is low, professional collaboration is poor, and the lack of stability, security. The emergence of cloud computing and virtualization technologies offers a new way for the construction of computer lab, It can be further standardized computer laboratory work flow from the point of view of technology, improving the operation efficiency of laboratory [1].
Research on Cloud Computing Services in Data Security Issues
Authors: Li Qin
Published: December 2014

This paper describes cloud computing services, analyzes the types of services and cloud computing services corresponding structural model; research focus on cloud computing data security issues were discussed in the service mode.
Simulation and Research of Dual Brush-Less DC Motor Synchronization Control System
Authors: Wang Gui Ying , Cheng Xiang Xiang
Published: December 2014

For dual synchronous brush-less DC motor control system’s operation problems due to load disturbance caused by poor synchronization performance, this article establish a mathematical model of brush-less DC motors and synchronous control system, based on the basis of comparison of various control methods and control synchronization control, use VUFPID control algorithm to compensate for the bias adjustable dual brush-less DC motor control program, and compare with conventional PID and fuzzy PID algorithm. Through the simulation results and conclusions show that VUFPID control algorithm can improve the control system coupled deviation synchronization accuracy, superior to conventional PID and fuzzy PID algorithm system.
Adaptive Information Brokerage in Wireless Sensor Networks with Virtual Rings
Authors: Chen Hong Ling , Ma Xing Po
Published: December 2014

We study the problem of information brokerage in wireless sensor networks, where each sensor node can be an information producer or an information consumer, or both an information consumer and information producer. Some sensor nodes in the sensor networks can be selected out as the storage nodes, where the producers can store their data and the consumers can retrieve the data they are interested in. Which node/nodes should be chosen as the storage node/nodes is a challenging problem, because many factors such as the data generating rates of the producers and the query frequencies of the consumer should be considered. In this paper, we proposed a novel data storage and retrieval scheme named SRVR (Storage and Retrieval with Virtual Rings). SRVR chooses the nodes in an optimal ring around the center of the sensor network field as the storage nodes, and achieves data storage and retrieval based on the ring. We show by simulation that SRVR achieves more balanced traffic load on sensor nodes and prolongs the lifetime of the senor networks.
A Simulation System of Radio Propagation Effect Evaluation Based on GIS
Authors: Wang Hong Ming , Dong Jun
Published: December 2014

Construction of wave propagation effects assessment simulation system based on GIS, for enhancing the capabilities of our military radio environment awareness, forecasting, warning and assessment of the effect is significant.In this paper, the original geographic data and radio wave propagation data will be unified as vector and raster data into GIS system structure based on ArcObjects components, combined with the development of visual language Visual C++ 6.0, designed and constructed to assess the effect of radio wave propagation simulation system. designed and built a radio wave propagation effects assessment simulation system. The system has data management, scene visualization, effects assessment, graphics output function modules, Achieved wave propagation effects assessment simulation and visualization presentation.
Research on Security Mechanism of Agricultural Information Platform Based on Cloud Computing
Authors: Zhang Li Na , Yang Bo
Published: December 2014

Cloud computing system uses new technologies such as the models of shared services and virtualization. Therefore, the security issues of cloud computing are also different with other systems. In order to guarantee the security of information sharing and interaction, we need to study the security of agricultural information sharing platform in depth direction. This paper will study the security protection system of agricultural information platform based on Cloud Computing, and the data security strategy and the service security strategy of agricultural information sharing platform.
A Spatio-Temporal Storage Method for Land-Use Change
Authors: Pan Ning , Wang Ke , Tan Jing Jing
Published: December 2014

Frequent land-use changes might produce a large amount of historical data which are valuable for data mining and decision-making. Based on the traditional Whole-state-recording Mode, the Special-state-recording Mode was proposed, focusing on the temporal aspect. This mode could optimize the land use database and reduce redundant change record. It could also improve data rollback and historical backtracking functions. The mode was successfully applied to land use planning in Zhejiang Province.
The Design of Information Collection System on the Internet of Things Based on MCU
Authors: Lei Neng Fang
Published: December 2014

In order to achieve the information collection function of the IOT, this paper is based on Embedded-ARM system, develops a terminal node hardware platform that uses S3C2440 as the core, and the hardware platform contains power supply module, processing and storage module, display and operation module, wireless communication module etc. Software platform uses Embedded Linux operating system, we transplant and produce boot loader, device drivers, the root file system, etc. On the platform of embedded system, we add MCU module, MCU module, Barcode scanning module, temperature and humidity module as the main information collection module, to realize the basic function of information collection of the IOT.
The Design of Digital Communication System Based on FPGA
Authors: Lei Neng Fang
Published: December 2014

The paper investigates the Multi-FPGA systems structure, including interconnect and configuration structure of the systems. After analyzing several common FPGA systems interconnection structure, we present its features. The paper analyses the feasibility and technical advantages for FPGA systems to use in digital array radar receiver design, and discusses their specific implementation, and designs a set of IF receiver with twenty reception elements.
Implementation of Wide-Area and Interconnected FPGA of Embedded Devices
Authors: Zhang Qin
Published: December 2014

Integration with Internet is the development tendency of industrial control network, and embedded Internet technique is the key of implementation. By analyzing field bus Technology and combining actual demand, the paper proposes dial-up high-density programmable logic device solution of remote embedded measurement and control equipment. For the purpose of implementing reuse of design modules and upgrading requirement, the paper systematically expounds top-down hierarchy design method for implementing functional module division. According to the difference of implementation complexity because of the difference of functions, the paper finally analyzes the characteristics and applications of programmable device, and proposes the improvement direction.
Research the Test Method of the Voltage Transformer Secondary Load in the Three-Phase Three-Wire Electric Energy Metering Device
Authors: Li Gu , Fu Zi Ming , Yan Jie Feng , Li Bing Wen , Cen Zhi Rong
Published: December 2014

This paper analyzes and studies the definition of the voltage transformer secondary load, examines the practical purposes of the measured values of the voltage transformer secondary load, and presents a variety of testing methods to analyze and compare the differences. This paper gives the test methods of the voltage transformer secondary load when the connection of the voltage transformer is the Y / Y in a three-phase three-wire power supply system, filling the blank of this type of test method in the industry. When other units within the industry carry out such work, the conclusions of this paper are available for reference, and the conclusions of this paper can be referred when drafting relevant regulations in the future.
Assessment of Transmission Line Condition Based on Neural Networks and Fuzzy Logic Decision
Authors: Yao Jin Ming , Yang Jun Jie , Lou Zhi Bin
Published: December 2014

Accurate assessment of the operational status of transmission line,and the line status timely warning, can protect the stable operation of the transmission line. Not high accuracy assessment for the current state of the transmission line,assessment model of transmission line state based on neural networks and fuzzy logic decisions are put forward,built on online monitoring system, Considering the conductor temperature, angle, tension and other parameters.Using BP neural network convergence line fault membership values, and the output state is line fault probability. Then ,the uncertainty of the state probability output line integrated assessmen through Fuzzy Reasoning.
Transformer Region Customer Information Management System Design
Authors: Yao Jin Ming , Yang Jun Jie , Du Xiao Min
Published: December 2014

In order to clarify the relationship between concentrator and collector in some Transformer Regions, the transformer region customer information management system was proposed based on a low voltage power line carrier technology. The system consists of the customer information detection terminal and the customer information management software. Detection terminal achieves the detection of relationship between concentrator and collector, within the scope of the common variants, through power line carrier communication technology, and sends the information to the information management server. Customer information management software managed the information ,which came from the terminal, using a database technology and displayed the results sorted, achieving the functions of detection terminal—parameter settings, data management, communication function, management functions for user rights. GPRS mobile public transport networks were used to keep communication between the terminal and information management software.
Dynamic Analysis of Flapper/Nozzle Electrohydraulic Servovalve Considering the Influence of the First-Stage Parameters
Authors: Zhang Wei , Li Song Jing
Published: December 2014

The mathematic model of flapper/nozzle electrohydraulic servovalves is rearranged, many factors are reconsidered which have been omitted in the past analysis which are for the purposes of convenience or on the assumption that they are of no particular significance. According to the rearranged mathematic model, the simulation model of the servovalve is established using the Matlab/simulink software, dynamic response characteristics of the servovalve is simulated when the parameters of the discharge coefficient of nozzles and the viscous damping constant of torque motor and flapper are changed. Simulation results show that the change of the parameters influence the dynamic response of the spool displacement.
Reflections on Selection about Ship Seismic Sensor
Authors: Cui Pei , Bai Chun Zhi
Published: December 2014

In the special marine environmental conditions, there are certain advantages of ship seismic wave relative to underwater acoustic signal. However, due to the poor performance of seismic wave sensor, it is difficult to effectively detect seismic signal. From the signal characteristics of ship seismic wave, we can see that the ship seismic wave signal is better than underwater acoustic signal through comparative analysis in some special environment. In the low frequency band of DC-20Hz, the energy of the ship seismic is stronger and the line spectrum is more obvious. It briefly explains the mathematical model of ocean bottom seismometers receiving ship seismic wave information based on coupling theory. Finally, this paper focuses on many factors need to be considered in the selection of seismic wave sensor from the structure, type and performance of sensor. In view of different functionality of sensor types, it is suggested to use acceleration sensor to detect the ship seismic wave signal.
Research on Crisis Dispatch of Power System Considering Solar Eclipse Impact
Authors: Chen Wei Hua , Chen Yan Wei
Published: December 2014

In the view of the safe and stable operation of power system in the extreme environments, the status and the role of two typical provincial power systems in China were analyzed. Combined with the spatial and temporal distribution characteristics of this total solar eclipse in July 22, the operations of the two provincial power systems in different regions during the total solar eclipse were compared. The main impacts of the development process of the total solar eclipse on power systems were analyzed. At last, combined the development trend of the extreme environments in the world, how to reduce the running risk of power system in the extreme environments by the crisis dispatch was explored.
Based on Single Chip Microcomputer Intelligent Bathroom Lighting System Design Research
Authors: Qin An Bi
Published: December 2014

The system test results show that the system modules can run normally. When the infrared detection circuit, Zigbee accept module detects information, microcontroller will drive the relay open the lights and headlamp unit, or shut down. In the display, dot matrix can work normally, can carry on the automatic control the fan, DHT11 sensor to detect the indoor temperature, can work normally. Through repeated tests, ZigBee protocol based on HOLTEK microcontroller remote intelligent control system successfully developed bath bully.
Theoretical Investigation and Analysis of Solar Thermoelectric Air-Conditioner
Authors: Tian Hui , Qi Zhao Hui , Wang Zhong Zan
Published: December 2014

With consideration of energy utilization and environmental protection, a solar thermoelectric air conditioner is designed, its composition characteristics, working principle is introduced, and factors that affect its performance have been analyzed theoretically.
Chip Waveforms Attribute Recognition Model Research and Design
Authors: Xiao Da , Feng Jing , Zhu Yue Fei , Peng Fei , Lan Jing Hong
Published: December 2014

For hardware Trojan detection process is difficult to effectively extract the exact equivalent logic function of the target chip logic function is proposed based on contradictory truth table equivalent extraction scheme and key Enabling technologies. Designed to target chip waveforms attribute recognition model, through the analysis of multiple properties of the model and proof, the work is given waveform attribute recognition model parameter setting principles.
Study on Optimal Power Flow with Large Scale Wind Power Integration Based on PSO
Authors: Zhu Xiao Wei , Liu San Ming , Li Ying , Chen Shu Ting , Pan Zhi Gang
Published: December 2014

This article is based on the idea that considers the influences of uncertainty, constraint programming model based on stochastic programming opportunities, expressed by means of probability constraints, the establishment of a constraint programming model for the optimal opportunity of wind power uncertainty, stochastic simulation technology development program and the particle swarm algorithm is used to solve this model based on IEEE30, at the end of the node optimization and simulation, to verify the feasibility of the model and algorithm. The whole procedure lays a good foundation for improving the situation of large-scale wind power grid dispatching and operation level access.
Solar LED Street Lamp Controller Design Based on SCM
Authors: Jia Rui Xia , Wang Li Juan , Yang Shuang Yi , Du Gui Tao
Published: December 2014

This paper introduces a solar controller based on SCM, system uses STC15F2K61S2 microcontroller as the core device of the control circuit. This design uses PWM (pulse width modulation) control technology and MOSFET tube is opened and closed to control the battery charging and discharging. The experimental results show that, the controller performance is reliable, can monitor the state of implementation of solar battery and storage battery, battery charge and discharge control optimal, to prolong the service life of the battery to.
The Optimization and Implementation of Power System Parallel Computing Management Platform
Authors: Chen Ji Lin , Zhang Nan , Qin Chang Feng , Liu Na Na , Qiu Wei Jiang , Hu Jian Yong
Published: December 2014

With the rapid development of computer hardware, parallel computing cluster is becoming more and more powerful. It becomes focus of attention that how to make full use of the parallel abilities in computing cluster for grid service faster and more agility in the analysis of power system simulation. This paper introduces the optimization and implementation of power system parallel computing management platform based on online and offline power system research. It improves the computing resource utilization, enhances the general platform, standardizes management of computing interface at the same time and realizes the application process can be configured for the customs. At present, the optimization and implementation of power system parallel computing management platform has been successfully applied to online warning research and auxiliary decision in the power system, and it is also applied to offline study prediction, collaborative system for power grid operation mode calculation and so on.
Characteristic Research on Wireless Power Transfer Based on Magnetic Coupling Resonant
Authors: Cui Shui Xiang , Zhang Zhi Juan , Liang Xue Mei
Published: December 2014

This paper analyses the working principle of magnetic coupling resonant wireless power transmission system based on mutual inductance coil model, and then gets the expressions of load power and transmission efficiency. By the theoretical analysis the relations between the various system parameters such as: coil size, transmission distance, load resistance, the resonant frequency and load power, transmission efficiency are obtained. According to the results of theoretical analysis, the system’s characteristics of load power and transmission efficiency with varying transmission distance are studied. Finally, simulations verify the accuracy of analysis by Matlab/Simulink.
Single-Stage Power Factor Correction (PFC) Converter Design
Authors: Sun Bao Wen , Wu Yun Xi
Published: December 2014

A single-stage PFC converter was introduced in this paper, then the converter EMI filters, converters inductors, high-frequency transformers and power components were designed and chosen, proven to good effect.
Design of an Energy Harvesting Rectenna for Low-Power Wireless Sensor
Authors: Xu Lei Jun , Wang Chang Shuo , Bai Xue
Published: December 2014

This paper presents the design of a compact 2.45 GHz microstrip rectenna for wireless sensors’ power supply. In energy harvesting system, the ambient RF energy can be collected by the rectenna and converted to direct current, therefore, it can be applied to the power supply of low-power wireless sensor. Voltage doubling rectifier circuit and T-type microstrip impedance matching network are applied to this rectenna to increase the output voltage and the rectification efficiency. The antenna is fabricatied ​​by using double PCB board (FR4), and it is optimized by ADS to achieve the best performance. The measurement results show that the rectifier can reach the highest conversion efficiency of 78% when the load resistance is 320 Ω and the input power is 18 dBm. It also greatly improves rectenna’s conversion efficiency at lower input power when the input power is-20 dBm, which has great practical value for supplying low power consumption sensors.
Research on Control System of Greenhouse Temperature and Humidity Based on Fuzzy PID
Authors: Shan Xiao Min
Published: December 2014

Rational utilization of greenhouse environment control technology can greatly increase crop yield, improve product quality, realize the agricultural production, increasing farmers' income. For greenhouse nonlinear, time-varying, time delay and multivariable coupling problem, the temperature, humidity, light intensity and the concentration of our fleet, and other factors affecting the analysis, the fuzzy inference is applied to the control systems of greenhouse environment, and transforms expert experience and knowledge behavior into the corresponding fuzzy control rules; combined with theory of PID, and temperature and humidity as control variable fuzzy PID system is established. The simulation results show that the system response speed, strong anti-jamming capability, combined with theory of PID, it has a better control effect on the temperature and humidity in the greenhouse environment, and provide some reference for the design of intelligent greenhouse automatic control system.