bluuebunny/crossref_metadata_2025 huggingface dataset:
Based on PQDIF Data of Harmonic Disturbance Source Orientation
Authors: Jia Xiu Fang , She Kai , Huang Shen Mao , Xu Chang Bin
Published: July 2013

Power quality data interchange format PQDIF is proposed by IEEE. This paper references arc furnace load model based on energy balance relation theory, the distribution network was established based on PSCAD simulation model. By calculating the effective value of harmonic indicators as neural network input samples, we can establish the BP neural network model for training and testing. And then through the established BP neural network model, it can realize the non-linear relation between the harmonic disturbance source and the harmonic indicators, thus the harmonic disturbance source orientation is achieved successfully.
Pipelined RISC Processor Design and FPGA Implementation
Authors: Gao Li Xin , Zha Hong Shan
Published: July 2013

This paper presents a pipelined RISC architecture processor. Five-stage pipeline is used to enhance the performance. Test results show that: the design of processor able to accurately perform all instructions, reaching the functional requirements, and greatly improved performance. Finally, implement the pipelined RISC processor in FPGA.
AM3359-Based Enterprise Energy Substation Design
Authors: Zheng Yu Ping , Yang Xin Hui , Gong Xiao Hong
Published: July 2013

the software and hardware design methods of energy substation in the enterprise energy management system are as follows: to use AM3359 ARM microcontroller as the CPU of energy substation; to use 8 circuits 24-bit ADC to survey the signals of pressure, temperature, and flow rate, etc; to use 4 circuits 16-bit DAC to control the on-site equipments and to communicate with central monitoring site through Ethernet.
A Portable Mind Wave Monitor Headband Applied in Intellectual Disabled Children
Authors: Ge Zhuo Chen , Liu Ren Jun , Lu Ran Hao , Lin Cheng Fan , Zhang Run Jing , Pan Zi Yi
Published: July 2013

A portable mind wave monitor which is a special made headband for intellectual disabled children is proposed. The headband could make the children easier to be understood by the teachers and researchers. The EEG (electroencephalogram-graph) sensor, live camera, microphone and a series of sensors is consisted in the headband. With the Wi-Fi or 3G network, the headband could connect to server though the internet at any time. The teachers and researchers can access on the website or apps on smartphone to manage the children daily testing data. Intellectual disable children always have low self-control ability, limited language ability and self-associated complications, and this system meets the special needs for the teachers and researchers. This headband enable teachers and parents have the same perspective as the intellectual disabled children.
Design and Implementation of VOD System
Authors: Mao Yang Hong , Chen Chui Xin
Published: July 2013

This paper gives the system design diagram, and made a detailed explanation to its structure and the basic principle. System consists of hardware and software design, hardware part mainly includes S3C2410, Flash, SDRAM memory interface, the software includes the compilation and transplantation of Mplayer, the QTE graphical use interface design and transplant. At the same time, this paper also studies the key technologies of the system software, including Bootloader design, kernel cutting and root file system design. Finally, the actual effect of the system is given, implement the thought of VOD, achieve the design purpose of the system. The system can make the students online learning at any time, relieve the teaching difficulties effectively, the system combine embedded technology and streaming media technology, it has the advantages of small volume, convenient operation, low cost and good stability.
Study on a New Method of Applying External Stress to MOS Device
Authors: Feng Qiu , Wang Gui Lian , Ding Gui Fu
Published: July 2013

The electrical characteristic of MOS device is susceptible to the external mechanical stress. In order to investigate the effect, the four-point bending technique has been used by many researchers to apply stress on the device. In this paper, a new way for applying stress to MOS device has been presented. The stress is applied by a metallic film which is deposited on the backside of the chip. Its convenient to apply different stress to each chip on the wafer. The above method is used to study the influence of stress on the performance of VDMOS device. The results show that the on-resistance decreases about 3% and 8% with the compressive stress of 50MPa and 70MPa respectively.
A Novel Covert Communication Method Based on WCDMA
Authors: Wu He Yi , Hu Ai Qun
Published: July 2013

Covert communication can effectively improve the security of communication content, which has been widely used in wireless communication systems. Most approaches for covert communication are based on the principle of text-embedded in upper layer of the OSI model. In this paper, a novel covert communication scheme is proposed. This method takes advantage of scramble codes and message processing rules of the WCDMA system. It uses a downlink scramble code in the normal WCDMA uplink signal, so that the covert messages will not be received by the base station (BS) and the user equipment (UE). Simulation result shows that the proposed covert communication method has a low bit error rate (BER) performance, and will only make the signals of different business to a slightly lower data transmission rate.
Study of Serial-Communication in Home Environment Control System
Authors: Dong Shu Leng
Published: July 2013

This paper describes the implementation of serial communication between the PLC and the host-computer in the control system of home environment, gives a detailed introduction to the communication protocols, parameters setting and also gives part of the serial-communication program based on visual basic 6.0. It shows that this control system meets the requirements as expected.
Research of Weak Signal Processing Circuit Based on Non-Dispersive Infrared Automobile Exhaust Sensor
Authors: Xie Jun , Zhang Yi Long , Yuan Yue Feng
Published: July 2013

Based on the analysis of infrared detection technology and Lambert-Beer law a new kind of quad-channel non-dispersive infrared (NDIR) gas concentration analyzer is designed by applying the modulated IR light source and a quad thermopile sensor into automobile exhaust gases concentration detection. The emphasis is paid on the analysis of modulated light source, gas chamber, sensor and the acquisition and processing circuit of the signal. The result of simulation and analysis of the designed circuit proved the feasibility of the design.
Research on Security Requirement and Improvement Recommendation of Smart Mobile Terminal
Authors: Lv Zhuo , Niu Shuang Xia , Zhang Zhi Gang
Published: July 2013

The rapid development of wireless technology has been a qualitative leap in the mobile network performance, allowing mobile network terminals to enjoy a variety of service types. But as the important personal information storage carrier to users, the own security of the smart mobile terminal is related to the safety of the entire mobile Internet. This paper introduces the security situation of the smart mobile terminals, analyzes the potential security threats and the security needs, and at last gives improvement recommendations of the smart mobile terminals protection.
Design and Realization of Wireless LAN in Smart Home System Based on 433MHZ Communication
Authors: Li Zhi Min , Luo De Han , Fan Dan Jun , Wang Chao
Published: July 2013

Nowadays, wireless network technology in smart home is rapid gaining popularity duo to its flexible integration into everyday life. The paper introduces a method that adopts 433MHZ communication to establish the wireless network in smart home system based on Si4421 wireless modules. The paper designed the overall idea of how to establish the wireless network, it mainly talk about the wireless module, including both software and hardware. The difficulty lies in the realization of the custom wireless communication protocol. The Si4421 wireless module was tested in data communication and control in smart home system which can work efficiently and reliably, it proved that the wireless module is perfectly suitable for the wireless network construction in smart home with small size package, low consumption, low cost, and strong ability to leap obstacles.
Secondary Data Transmissions with Two-Way Relay in Cognitive Radio Networks
Authors: Gao Yuan , Zhu Chang Ping , Tamg Yi Bin
Published: July 2013

For improving the spectrum hole utilization in cognitive radio networks, two-way relaying is used in this paper to assist two secondary users in exchanging information. The 2-step and 3-step two-way relaying models are respectively discussed with imperfect spectrum sensing. Moreover, the closed-form expressions of outage probability for the two models are derived with a primary user protection constraint. Simulation shows that 3-step model outperforms 2-step in terms of the outage performance.
Automatic Recognition of M-Nary Digital Modulation Signals
Authors: Rong Li
Published: July 2013

For the using of multi-modulation, the precondition of receiving and demodulating signal is to decide the type of the modulation. So automatic recognition of modulation signal has significant influences on the analysis of communication signals. In this paper, nine types of M-nary digital modulations are recognized by using four effective key features and utilizing the decision-theoretic approachThe simulation results shows that overall success rate is over 99% at SNR4dBThis algorithm is verified its good performance. It has simple structure, less calculation and good performance of real time. It can realize automatic modulation recognition.
Short-Term Forecasting Method of Maximum Usable Frequency for HF Communication Based on Oblique Sounder
Authors: Hou Jin Hai , Wang Jian , Wu Li Qiang , Ji Sheng Yun , Chen Dan Jun
Published: July 2013

Based on oblique sounding system, a short-term forecasting method of maximum usable frequency for HF communication was presented. The method include four steps: firstly, maximum usable frequency of oblique sounding circuit was forecasted based on its sounding data; secondly, the critical frequency of sounding path midpoint was determined from the oblique sounding data and its forecast data by using ray-path theory; thirdly, the critical frequency was reconstructed for forecast circuit; in the end, maximum usable frequency for HF communication circuit was given. Using the oblique sounding data during March 2012, the accuracy and practicability of the method was validated. The root-mean-square error of the short-term forecast is 1.56 MHz, and is reduced 0.40MHz contrast to that of the long-term prediction. The research provides the important reference for frequency selection and frequency management of HF communication.
Variable-Rate Variable-Power MQAM for Energy Efficient Transmission over Fading Channels
Authors: Qiu Guo Wang , Yu Feng Qi
Published: July 2013

Wireless communication devices are often battery-powered. Reducing energy consumption during transmission has become a major challenge. We propose an optimal adaptation scheme and a suboptimal scheme based on the continuous-power discrete-rate adaptation (CPDR) for energy efficient transmission over fading channels. In our proposed schemes, we optimize the average transmit power according to data rate of the source node and buffer level, and then we adapt the transmit rate and power according to the CPDR scheme. Simulation results show that our proposed schemes have outstanding performance on energy-saving.
Fade Statistic Analysis of SC in Distributed Antenna System
Authors: Li Lei , Wang Xiao Dong
Published: July 2013

Exact and closed form expressions for the average level crossing rate (LCR) and average fade duration (AFD) of the output signal envelope of selection diversity system are derived, assuming each branch is subject to independent but nonidentical composite fading in distributed antenna systems (DAS). Numerical results validate the derived expressions. It shows that DAS promise significant diversity gains over collocated multiple antenna system.
The Implementation and Experiment of PEP Device in Satellite Networks
Authors: Xu Xin , Tang Kai , Li Jiang Hua , Fang Hua
Published: July 2013

PEP device can be used to improve the performance of TCP in satellite networks. An implementation of PEP device was discussed in this paper. Its software architecture and experiment in satellite networks were presented. The experiment results show that this PEP device can greatly improve the performance of user applications. And the other advantage is that the software and protocol stack in user applications need not be modified.
The Research of Equipment’s Security in Electric Power Communication Access Network
Authors: Yu Peng Fei , Yu Qiang , Huang Zhi , Chen Wei , Ren Jie
Published: July 2013

In the "12th Five-Year Plan" period, government will continue to promote the construction of Intelligent Electric Grid , and the construction of more efficient electric power communication access network will also go into the extensive stage from partial stage. But as so far, a large number of public network devices are applied in power communication system, so the equipment’s security is one important issue. This paper analyze the situation of electric power communication access network firstly, and then introduce our specific work in some one device’s security, such as user authentication protocol, the hand-in-hand protection of EPON, and devices’ EMC.
Detecting the Underground Displacement by Integrated Sensor Equipped with Three-Dimensional Measurement Method
Authors: Jiang Guo Qing , Li Qing , Xie Yang Ming
Published: July 2013

Measurement of underground displacement is of great significance. Now, there are various measuring methods to detect underground displacement. But each of them has its own scope of application and limitation. According to actual demand, this paper puts forward an integrated sensor which utilize three-dimensional measurement method to supervise the underground displacement. This sensor can not only measure the size and direction of the displacement, but also can achieve real-time measurement data. Method and realization of displacement measurement are introduced, as well as the experimental data. Comparing with other several measurement methods, three-dimensional measurement method is much better than the normal ones, including high data transmission speed, high sensitivity, strong practicability etc.
The Research on the Ka-Band Characteristics of the Satellite-Ground Link
Authors: Li Xin , Wang Yue Ke , Chen Jian Yun , Zhou Yong Bin
Published: July 2013

As the low-band is more and more crowded, moving to Ka-band for the satellite-ground measurement and communication is preferred in the literature. This paper aims to contribute to the understanding of the influence of the atmosphere on the range error and the attenuation in Ka-band. By adopting the method recommended by ITU-R, we analyze the delay range error and the attenuation induced by the ionosphere and troposphere for Ka-band. The result shows that the ionosphere delay range error is significantly reduced in Ka-band comparing with navigation band. The maximal ionosphere delay range error is about 1m in Ka-band. The troposphere delay range error in Ka-band is the same as that in navigation band. When the elevation angle is over 40º, the troposphere delay range error become flat and doesnt exceed approximately 4 m. With respect to atmospheric attenuation, two important findings are obtained: firstly, when the elevation angle is over 40º, the atmospheric attenuation doesnt change significantly and is generally below 2 dB. Secondly, the atmospheric attenuation reaches its peak at the frequency of approximately 22.5GHz in Ka-band. Finally, an important conclusion can be drawn that in the design of the Ka-band satellite-ground measurement system, it should be considered to make the system work at the elevation angle over 40º. Thus, in generally, the range error doesnt exceed 5 m and the attenuation doesnt exceed 2 dB, even though it doesnt make the model correction.
Signal Detection Based on Cyclic Autocorrelation under Noise Uncertainty
Authors: Wang Chao , Tian Li Qiang
Published: July 2013

Signal detection is a key enabler of cognitive radio. This paper considers the detection signals in uncertain low SNR environments. We propose a feature detector based on cyclic autocorrelation function of signal. Compared with other feature detector based on cyclic spectral, the proposed detector need lower computational cost than computational cyclic spectrum. Similar radiometer detector,SNR wall also exists in noise power uncertainty model. Beyond this SNR wall robust detection is impossible.Detection performance including the SNR wall is proved.
A Digital Pre-Distortion Scheme for CMMB Repeater System Based on Dynamic Neural Networks
Authors: Lin Ze Biao , Huang Chun Hui
Published: July 2013

CMMB technology employs Orthogonal Frequency Division Multiplexing (OFDM) modulation with 4096 subcarriers for 8MHz bandwidth mode, HPA in the CMMB repeater will cause significant distortion and spectral extension. To compensate HPA nonlinearity and memory effect in a CMMB repeater system, this paper proposed a pre-distortion scheme based on RNN and Bayesian Regularization for the first time. Computer simulation is used to confirm the validation of the proposed scheme and an adjacent channel leakage ratio (ACLR) improvement of 20 dB is obtained in the paper.
Research on End-To-End SMS Confidential Communication System
Authors: Su Yan , Huang Zhi Xing
Published: July 2013

Because of the security vulnerabilities of the GSM network short message communication faces threat of information theft, this paper propose an end-to-end secure communication solution, then elaborate the security of the scheme, introduce the features and system-level architecture. And implement system based on the Iphone4 platform.
Research of Link Adaptation Technology and Solutions in Wireless Communication Network
Authors: Cao Lu , Xu Ying , Wang Tian Lei
Published: July 2013

With the rapid growth of the demand for wireless data services, it becomes a hotspot in the field of mobile communication to maximize data transfer rate on the limited bandwidth. Link adaptation technology has a strong advantage in improving the data transfer rate and the spectrum utilization rate, thus becoming one of the key technologies in current and future mobile communication systems. This paper aims to study the adaptive technology of the wireless link, emphasizing on the basic principles and existing implementations of the adaptive modulation and coding (AMC) and the hybrid-automatic repeat request (HARQ) which are both mainstream link adaptive technologies. Finally, a new link adaptation technology implementation is given by combining the advantages of AMC and HARQ.
A Mobility-Aware Task Scheduling Model in Mobile Grid
Authors: Xu Yong Qiang , Yin Ming
Published: July 2013

The mobile grids bring some additional features into the grid, such as mobility, energy-constrained, etc. And the task scheduling becomes a more challenge thing. We propose a mobile grid task scheduling model considering the mobility of both user and resource, and the resource energy consumption. Through analyzing the architecture of mobile grid, a mathematical model is built to calculate the average distance between the resource and Base Station (BS). Then, it can decide which mobile grid the mobile devices are apt to stay in, which can deal with the mobility of mobile devices. On the other hand, the resource energy consumption is also considered, which ensure that the resources have enough energy to finish the task. As a result, the task can be assigned to the best resources in the suitable mobile grids. The failures may happen in the task scheduling because of many unpredictable factors. So the fault-tolerance scheme based on the notion of replication is proposed.
Research of Key Technologies of Universal Middleware for Wireless Computing
Authors: Li Zheng Mao , Wang Jun , Zheng Di
Published: July 2013

To shield heterogeneous and distribution of system and improve the efficiency of development, middleware technology has been successfully applied to the traditional distributed system. But in the wireless sensor network environment, traditional middleware technology is facing enormous challenges such as dynamic environment, network asymmetry, frequent disconnection, limited resources, and wide diversity of context. Therefore, it is important to design the universal middleware for massively heterogeneous wireless sensors. It can improve the system performance and efficiency and provide effective extension and expansion for traditional middleware. In this paper, we introduce the system structure of the universal wireless middleware platform, which is divided into infrastructure middleware and application service middleware. Meanwhile the key technologies of the middleware platform for wireless computing environment are analyzed.
Mountain Mapping Relaying Communication Positioning Algorithm
Authors: Zhu Sheng Jie , Feng Xin Huan
Published: July 2013

Naturally, for the mountain mapping, the communication system's power is limited, As a matter of fact, the stations should be built as high as possible in order to eliminate the terrain shielding and radiate to the farther areas, however the number of users or other aspects also counts, In this paper, we introduced new methods to locate the modified location for the base stations in the mountain areas, and with this method, we use less stations to cover the most areas in the given situation. For a random mountain terrain. the coverage rate of this model is as high as 95.1%.
Design of Optical Fiber Communication Networks for Feeder Automation
Authors: Sun Zhong Wei
Published: July 2013

This paper focuses on design aspect of communication network for feeder automation applications. First, the business functional requirements of feeder automation and the supporting communication technologies are reviewed. Then, based on typical loop sectionalizing feeder connecting scheme, the communication infrastructure using Ethernet Passive Optical Networks (EPONs) is presented, and the redundant PON architecture is adopted.
IrLAP Protocol Performance Analysis of IrDA Wireless Communications
Authors: Zhao Zi Xu , Song Xiao Qing , Yan Zhi Feng , Chen Yong Xing
Published: July 2013

The technology of infrared wireless communication offers us a wireless connection and communication mode that is low cost, high speed and short distance. IrDA infrared data association brings forward IrDA infrared communication protocol that is the base of a large number of equipments, interlink with infrared data interface. This paper introduces IrDA standard and the frame structure of IrDA standard. An improve analysis is presented linking processor of IrLAP.
32-bit Datapath AES IP Core Based on FPGA
Authors: Tang Hong Wei
Published: July 2013

This paper presents an architecture for 32-bit datapath Advanced Encryption Standard(AES) IP core based on FPGA. It uses finite state machine, and supports encryption, decryption and key expansion. The round-key is calculated before the beginning of encryption and decryption. It consumes less hardware resources. It is implemented on Cyclone II FPGA EP2C35F672C6, which consumes less than 55% logic elements of the resources. The IP core can operate at a maximum clock frequency of 100 MHz. Compared with 128-bit datapath AES, it can interface with CPU easily.
Restarted LBFGS Algorithm for Power Amplifier Predistortion
Authors: Bao Ji Long , Zhu Ren Xiang , Yuan Hong Xing
Published: July 2013

For the linearization of power amplifiers, a digital pre-distorter is proposed to compensate nonlinear distortion in this paper. The pre-distorter is realized by Volterra series, and a restarted limited memory BFGS(LBFGS) algorithm is proposed for training the nonlinear pre-distorter. Training of Volterra series can be switched between gradient descend algorithm and quasi Newton algorithm by setting a switching condition, and LBFGS algorithm can be used for high dimensional iterative matrix of BFGS algorithm. These make the new algorithm much more stable with a fast convergence rate. The pre-distorter is used for OFDM power amplifiers and it high efficiency is proved by simulation results. Moreover, the convergence rate of the proposed algorithm is greatly faster than that of the gradient algorithm.
Improved GPSR Routing Protocol in VANETs
Authors: Yao Jian , Peng Hao You , Fu Tian
Published: July 2013

According to characteristics that the vehicles move fast and topology changes quickly in Vehicular Ad hoc Networks (VANETs), a novel routing protocol GMGP based on the location is proposed for VANETs. Predicting the changes of the neighboring nodes positions and using greedy forwarding mechanism forward packet, and using a movement perimeter forwarding algorithm to select the next reliable hop node on the basis of direction and velocity of the mobile nodes when the greedy forwarding fails, it improves the reliability of routing. When a more realistic vehicles mobility model is applied to the NS-2 simulation platform, the simulation indicates that the improved routing protocol has better performance than the GPSR routing protocol.
An Improved Multi-Label Anti-Collision Algorithm of RFID
Authors: Chen Jian Zhe , Wang Gui Tang , Shao Mei , Li Ying Ge
Published: July 2013

When there are multiple electronic tags in the reading range of reader, It arises problem of multiple tags data collision in the data communication process of RFID system, causing the data reader have obtained error. This paper will contrapose the problem of tag collision, analysizing the search number and the system throughput rate of the existing anti-collision search algorithm based on binary, to propose an improved anti-collision algorithm. The improved algorithm reduces the redundant information of the sequence number that the reader have sent, and no longer searchs the tags of one bit collided ,but identify the two collided tags directly, thus reducing the search number of algorithm. Matlab simulation show that this algorithm can reduce the search number of reader identifying tags, improving the identifying efficiency of the RFID system, solving the problem of tag collision effectively.
The Design of Urban Parking Guidance and Information System Based on ZigBee Technology
Authors: Huang Cheng Kai , Cui Xiao Yan , Li Yao Kai , Cheng Dong Fang
Published: July 2013

This paper proposes a complete set of Urban Parking Guidance and Information System, which includes Parking Subsystem and City Parking Subsystem. The system adopts wireless sense network based on ZigBee technology for the communication network. The parking information terminals that set up in the parking areas automatically identify the parking vehicles and upload the parking information. After processing the data, the Central Control Module would distribute the parking information by LCD screens for the drivers. In terms of parking supply and demand status, the system sends the separately parking information to the corresponding phone number. The system achieves barrier-free intelligent parking management by realizing functions such as three ways of releasing the information of parking lots, inquiry of parking location and convenient register operation.
ECU Calibration System Based on ASAP
Authors: Zhuang Ji Hui , Yan Ying , Zhu Zhong Wen
Published: July 2013

Based on the ASAP standard, an ECU calibration system for diesel engine is developed in the paper. The implementation of KWP2000 protocol supports the diagnosis management and data transmission function subset. The A2L format file which is a standardized description used to declare the data storage format and the conversion relations of different kinds of ECU. Using the ECU communication technologies, the calibration system can access the measurement and calibration data in ECU memory safely and reliably. The calibration system is designed to employ various software modules respectively. The use of layer architecture in this system can reduce the complexity of the code and increase generality of the application.
Hardware in the Loop Simulation for Low-Altitude UAV Link in the Complex Terrain
Authors: Zheng Yi , Wang Yu Wen
Published: July 2013

In order to investigate the influence of complex terrain on the quality of the unmanned aerial vehicle (UAV) communication link and simulate it accurately, the HITL simulation platform of the UAV-ground link, which was based on EXata software and Hardware-in-the-loop (HITL) module, was built. In the virtual terrain scenarios, the Free-space loss model and the Irregular Terrain Model (ITM) were used to modeling and conduct the semi-physical simulation experiments, respectively. Then, a new method of the HITL simulation for the wireless communication link was put forward, which achieved the real-time video stream interaction with the virtual networks. The simulation results showed the real-time changes of path loss in the complex terrain and the specific affection on the UAV-ground link communication quality from numerical and video transmission effect. The method enhanced the accuracy and rationality of the UAV-ground link simulation.
The Performance Analysis of Fiber Distributed Vibration Monitoring Technology Based on φ-OTDR
Authors: Wang Ji Qiang , Liu Yuan , Hou Mo Yu , Zhao Lin , Liu Tong Yu
Published: July 2013

The performance of the fiber distributed vibration monitoring technology based on the phase sensitive optical time domain reflectometer (φ-OTDR) is reseached. the principle of fiber distributed vibration monitoring of the φ-OTDR and multi-point positioning are illustrated. And this paper indicates the feasibility of realizing multi-point positioning by the φ-OTDR system, and carry on a further research on the φ-OTDR system ́s frequency response range, measuring distance, spatial resolution and other aspects. The inverse proportion relations between the frequency range and distance of the φ-OTDR system, and the relations among spatial resolution, laser pulse width, refractive index and sampling rate are illustrated.
Design of Marine Geological Survey Monitoring Model and Its Realization
Authors: Feng Bin , Zhan Wen Huan
Published: July 2013

To strengthen monitoring and dispatching of survey ships and supervision on offshore projects, a marine geological survey monitoring model, based on satellite communication system, AIS and WEBGIS, is developed. By displaying ship real-time dynamic information and working process in the network electronic chart, this system improves the management level of offshore production scheduling. At present, the system has already been applied by Guangzhou Marine Geological Survey, gaining excellent effect.
Based on ASP.NET and AJAX Intelligent Network Test System
Authors: Wang Xiaofeng
Published: July 2013

By using ASP.NET technology, AJAX technology and Browser / Server mode, designed and implemented an intelligent network test system. Detailed description of the network test system development environment, system components, system functions and key technologies, And problems encountered in the development process, proposed solutions.
Improvement of PRG Pattern by Using Ajax Technology
Authors: Lou Bu Ye , Weng Shuo
Published: July 2013

The study discusses the fusion technology of PRG pattern and Ajax and its applications. After analyzing the natures and shortcomings of PRG pattern, it introduces improvement of PRG pattern by using Ajax technology, and proposes three patterns: A-P pattern, A-PRG pattern and A-PG pattern. These patterns can make full use of the characteristics of Ajax technology, which can send asynchronous requests to the server and partially update page, and solve the shortcomings of PRG pattern. Finally, the implementation technology of the patterns in JSF application is presented; the applicable scenarios and constraints of the patterns are elaborated.
Multi-Sensor Interactive Multi-Model PHD Filter for Maneuvering Multi-Target Tracking
Authors: Tian Shu Rong , Sun Xiao Shu , Sun Xi Jing
Published: July 2013

In maneuvering multiple targets tracking problem, Probability Hypothesis Density(PHD) filter can be used to estimate the multi-target state and the number at each time step, but single model method may not provide accurate estimates. In this paper, an interactive multiple model PHD filter is proposed, and then multiple sensor interactive multiple model PHD filter is proposed to improve the tracking of multiple maneuvering targets. PHD particle filter implementation is used to perform the proposed method consisting of multiple maneuvering targets.
An Application Framework Design of Smart Grid IT Integrated Dispatching Operation Platform
Authors: Hu You Jun , Chen Yu Hui , Qiu Yu Xiang
Published: July 2013

Smart Grid construction of state grid enhanced the requirements for grid information construction, and the objective of constructing IT dispatching operation systems has been established in 12th 5-year information development plan. In order to cover every aspect of IT dispatching operation systems, including dispatching, operation, maintenance and customer service. the paper combined the advanced experience in dispatching and producing field of state grid recent years [, and with the characteristics of information field, proposed an application framework of integrated dispatching operation platform from operation layer, management layer and analysis layer to cover, in the design of operation layer, includes the contents of how to ensure rationality and security operations, in the design of management layer, includes the contents of how efficient and standardized management, in the design of analysis layer, includes the contents of how science and intelligent decision analysis. all of which ensured the efficient running of IT dispatching operation systems on the whole.
Application of Wireless Sensor Network in Shipping Laterite Nickel Ore Moisture Content Monitoring
Authors: Chu Fan , Zhang Ying Jun , Shen Jiang , Yang Xue Feng
Published: July 2013

This paper applies wireless sensor network to the shipping laterite nickel ore moisture content monitoring, and design a set of real-time monitoring of lateritic nickel ore moisture content monitoring system in the process of actual transportation, and formulate a specific implementation plan. According to the structure of laterite nickel ore bulk carriers and the characteristics of the wireless sensor network, this paper also solve the design and layout problems of wireless sensor nodes, the problems of energy saving and data transmission from the inside cabin to the outside, etc. In addition, the system has strong portability, and can be used for monitoring in other related fields.
Design of a New Intelligence Support System
Authors: Huang Ke Wang
Published: July 2013

This paper focuses on the design of a professional operation model of search engine. It is a new intelligence support system and it is a professional real-time system. It can be used to routine analysis and advanced analysis. It provides professional and technical report on intelligence and competitive intelligence. It can satisfy the user fully professional information needs.
The Design and Realization of Lift Balance Coefficient Calculation Software Based on Android Smartphone
Authors: Tang Yue Lin
Published: July 2013

In order to meet the needs of conveniently, fast and accurately calculating the balance coefficient in lift supervisory inspection, this paper proposed a novel method based on android smartphone terminal. First, the boundary value problem was discovered in the balance coefficient curve fitting, and the fusion algorithm of curve fitting and interpolation is proposed. Secondly, the coefficient calculation software was developed based on android smartphone after its function was designed. The experiments show that it can meet the requirements of test and the efficiency is also greatly improved.
Test Case Generation of Web Service Composition: An Approach Based on the Color Petri Net
Authors: Wang Yu Ying , Chen Ping
Published: July 2013

Based on CP-nets models, an approach of test case generation is proposed for BPEL processes, with which the semantic of BPEL concurrence is well dealt. Firstly, a web service composition which coded in BPEL language is expressed as CP-net models on which depth-first traversal works immediately, and result in sequence test paths obtained. After merging these sequence test paths into program executable units (PEU for short), constraint set of these units is solved and formed into test cases. Finally an application of the approach is illustrated with an example, which more efficiency shown with 7 test units less than 9 test path appear in reference available for same example.
The Construction and Design of Personalized Course Website
Authors: Huang Le Hui , Zhang Xiang Qing
Published: July 2013

Website Design is an important part of Website Construction. The construction of excellent course website can play its roles though designing an excellent website, which can serve the teaching better. This paper presents our own ideas of personalized excellent course website construction and innovative design from the following aspects: The analysis of problems on current excellent course website construction, the requirements of personalized website construction and personalized website design.
Using the ORACLE Database Management for 500kV Transmission Line Fault Features
Authors: Liang Yong Chao , Zhang Xi Jia , Zhu Tian Yi
Published: July 2013

Through the analysis in SCADA systems data of Hunan province electric power maintenance company, found out transmission line fault types, switch and protection action information table of 500kv. Using ORACLEs PL/SQL statements to help the data be neat and also with data preprocessing. Fault features needed for mining properties can fully reflect the fault information, use VS2010 tool programming, data can be carried out in time, space multi-dimensional queries, the researchers used software can dig out the failure rules, increase the efficiency of the data.
Pressure-Based Soft Sensors for Fast Volume Estimation
Authors: Tong Xiao Meng , Cai Mao Lin
Published: July 2013

To acquire a fast method for better volume estimation, a novel soft sensor technique is proposed in this paper. Based on the principle of energy conservation as well as the ideal gas law, mathematical models of charging and discharging process are set up. Afterwards, simulations are carried out to explore the relationship between the estimated volume and the pressure stable time. Finally, experiments with different pneumatic cylinders are conducted to select the suitable estimation mode and also optimize the parameters. Results show that in discharging mode, the average estimation error for volume estimation can be less than 4% with both low pressure and high pressure, making this method quite suitable for industrial application.
The Research of Android-Based Wireless Ordering Food System
Authors: Li Liu Yu
Published: July 2013

With the accelerated pace of life, the traditional ordering food has been unable to meet customers needs. The development of intelligent hand-held devices create the conditions for wireless ordering food. Confronted with the present needs, a hand-held ordering food system based on Android has been designed by the authors combined with the traditional ordering process. The system established two ordering models with Bluetooth and mobile Internet, and realized interaction between mobile terminal and server using J2EE and Android application development technology. The experiments show that the system completes all the process of ordering, and it has the advantages of strong mobility, convenient operation, full functions and so on, which can save money for the catering industry and improve the quality of service.
Study on the Parameters Normallization of Concatenation Stochastic Resonance System
Authors: Deng Hui , Liu Hao , Zhang Han , Piao Jin Lan
Published: July 2013

Stochastic resonance (SR) enhances the nonlinear system behavior with the assistance of noise. Based on the stochastic resonance analyzed in this article, the stochastic resonance parameters normallization equation was derived, which is proved to be true through the circuit numerical simulations applications. And then the concatenation bistable stochastic resonance system were also derived.
Review of Chinese Short Text Classification
Authors: Wu Fen Lin , Gou Jin , Wang Cheng
Published: July 2013

Because features of Chinese short text are different from long text, current text classification technology of long text classification are not suit of short text classification. This paper summarizes features, various methods and Application for Chinese short text classification, and pointes out their advantages, disadvantages and applicability scope. Establishing Open data set and unified framework standard are two main Problems and further research directions.
Research on Building Salt Lake Domain Ontology Based on Process-Oriented
Authors: Zhang Jian , Feng Fei , Liu Yu , Wang Nan
Published: July 2013

Recent research on knowledge representation demonstrated that the more clearly domain concepts, the higher accuracy of the information extraction. Accounting that the ontology with an advantage in the aspects of the concept representation, it can be introduced to the Salt Lake domain to construct the domain ontology, and will convenience for the future of information extraction and retrieval. The main contribution of this paper is to propose a process-oriented domain ontology construction method which through comparative analysis of the domestic and international typical domain ontology construction method, and combined with the characteristics of the Salt Lake field, not only more comprehensive representation of the characteristics of the domain, but also has better logic and relevance.
Text Concept Relation Acquisition based on Ontology Similarity
Authors: Li Dao Wang
Published: July 2013

Ontologylearning has become a research hotspot in computer field at present with focuson concept and relation acquisition. The acquisition results of traditionalstatistic-based method are not highly accurate because it ignores the effectsof conceptual semantic and characteristics and others factors on conceptualrelation. To resolve above problems, this paper puts forward to a comprehensiveontology similarity integrates semantic similarity with characteristic attributesimilarity, takes uses of association rule to mine concept-to-conceptrelations, and applies comprehensive ontology similarity into relationacquisition. The experiment shows that this method can effectively improve theaccuracy of concept relation acquisition.
A Distributed Storage Algorithm Based on Cauchy RS Code
Authors: Gao Xing , Li Min , Huang Juan Juan , Liu Bing Chang
Published: July 2013

Data fault tolerance is a key technology in the field of distributed storage. In this paper, an algorithm to encode massive amounts of data and then distribute storage these data on each node in the data center is proposed, aiming at coping with the serious challenges in the protection of data fault tolerance. The method converts multiplication operation in Cauchy RS coding into a binary multiplication through the transition on bit operation, so that the entire operation on RS encoding is converted to an operation containing only simple XOR operator. The experiment proves that the method is better than the copy and the original RS coding in the data encoding efficiency. Furthermore, it saves the storage space and promotes the application of erasure codes strongly in distributed storage field.
The Data Self-Destruction Technology Research Used in Marine Environmental Monitoring Buoy System
Authors: Zou Guo Liang , Ma Jing Jing
Published: July 2013

Faced up with the fact that the buoy used in marine environmental monitoring did not install the self-destruction mechanism, and combined with the current development of the data destruction technology, data self-destruction technology for buoy was researched. The study shows that when the buoy system is out of control, it can select the two different data self-destruction methods by analyze different degree of threat which buoy system suffered. So it can destruct the marine environmental factor data in a fast and effective way, and make the data be unrecovered, thereby prevent data leaks, ensure data security.
Strategies for Sensitive Association Rule Hiding
Authors: Wang Hui
Published: July 2013

Data mining technologies are used widely while the side effects it incurred are concerned so seriously. Privacy preserving data mining is so important for data and knowledge security during data mining applications. Association rule extracted from data mining is one kind of the most popular knowledge. It is challenging to hide sensitive association rules extracted by data mining process and make less affection on non-sensitive rules and the original database. In this work, we focus on specific association rule automatic hiding. Novel strategies are proposed which are based on increasing the support of the left hand and decreasing the support of the right hand. Quality measurements for sensitive association rules hiding are presented.
An Integrated GPS/INS Navigation System for Land Vehicle
Authors: Hendy Hossam , Rui Xiao Ting , Khalil Mostafa
Published: July 2013

A precise guided system needs an efficient control depending on a precise navigation algorithm, with the ability of getting an accurate initial attitude determination to guarantee the mission success. A navigation system is presented in this paper based on integration between inertial measuring unit and Global Positioning System via Kalman filter approach to satisfy an acceptant accuracy. The two well known Euler and Quaternion attitude determination techniques are implemented to evaluate the body orientation during motion. The carried out system is validated using both simulation data and experimental work. The simulation data is obtained using a six-degree-of-freedom model for a 122mm artillery rocket to obtain all ballistic trajectory parameters during flight. The experimental work is done using a land vehicle taking into consideration the initial attitude determination problem. The results showed high accuracy improvements with high data rates 200 Hz for full state navigation information (position, velocity and attitude).
Design on Monitoring and Evaluation Methods for CSCL System
Authors: Yan Wei
Published: July 2013

The problem of capitalizing on experience of how to track and analyze the learning processes is of particular interest in Computer Supported Collaborative Learning (CSCL) environments, where learning is usually based on the interactions occurring among peers. This paper provides some examples of DPs addressing tracking problems in CSCL environments. Our DPs have been elaborated with a twofold aim to contribute to the ﬁeld by proposing possible solutions to tracking problems frequently faced in CSCL; on the other hand, by using DPs as a tool for sharing experience, we hope to inform the development of functions that could be integrated in Computer Mediated Communication (CMC) systems in order to support the monitoring, evaluation and assessment of the learning experience and therefore augment its effectiveness.