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Table of Content

    27 April 2011, Volume 1 Issue 4
    算法设计与分析
    Research on Traveling Salesman Problem Based onImproved Particle Swarm Optimization Algorithm
    YE An-xin
    2011, 1(4):  1-3.  doi:10.3969/j.issn.100612475.2011.04.001
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    To overcome premature searching by standard Particle Swarm Optimization(PSO) algorithm, an improved particle swarm optimization algorithm is proposed. In the new algorithm, different particles are assigned specific tasks. Better particles are given smaller inertial weights, while worse ones are given larger inertial weights. And the particle’s inertial weights are adaptively adjusted according to its fitness function. These strategies improve the PSO algorithm at the aspects of diversity and the balance of exploration and exploitation. This paper tests the algorithm with a Traveling Salesman Problem with 14 nodes. The result shows that the algorithm can break away from local minimum earlier and it has high convergence speed and convergence ratio.
    Comparison of Several Krylov Iterative Methods in Power Flow Calculation
    ZHENG Jin-hui;LU Da
    2011, 1(4):  4-6.  doi:10.3969/j.issn.1006-2475.2011.04.002
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    While doing power flow calculation, most of running time spends on calculating largescale sparse linear equations Ax=b. Applied iterative methods aren’t unified in many documents, which focus only on improving the preconditioning. This paper introduces some kinds of popular Krylov iterative methods in detail, summarizes their characteristics and analyses their FLOPS and the convergence efficiency with experiments. Finally, through evaluating the computational efficiency, the most suitable Krylov iterative method for power flow calculation is be obtained.
    Research on Voluntary Screening Algorithm for Classification of Introducing Weights in Courseselecting System
    LI Wen-jun;YU Jin-ke;TONG Qiang
    2011, 1(4):  7-9.  doi:10.3969/j.issn.1006-2475.2011.04.003
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    To ensure more scientific, rational, fair and humane management concepts of course selection in college, the article analyses the advantadges and disadvantadges of current various courseselecting algorithms. Based on lack of humane screening and random uncertainty in traditional voluntary screening algorithm for classification, an improved voluntary screening algorithm for classification which introducing weights is presented. The algorithm effectively enhances the rate of course selection for excellent students, mobilizes students enthusiasm, and reduces complexity of algorithm time validly.
    A Route Re-planning Based on Adaptive Genetic Algorithm
    WANG Jian;XU Han
    2011, 1(4):  10-13,1.  doi:10.3969/j.issn.1006-2475.2011.04.004
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    Route re-planning is known as one of the key techniques to guarantee the safe navigation of UAV. For genetic algorithm track replanning is easy to fall into local optimal solution, this paper takes the adaptive crossover and mutation probability of genetic algorithm to solve local route planning problem. This algorithm avoids the track re-planning to finish early, and prevents the track into a local optimal solution. Simulation results show that the adaptive genetic algorithm meets the constraints of planning an approximate optimal track in the simulated environment, and improves the performance of the genetic algorithm tracks re-planning.
    A Route Re-planning Based on Adaptive Genetic Algorithm
    WANG Jian;XU Han
    2011, 1(4):  10-13,1.  doi:10.3969/j.issn.1006-2475.2011.04.004
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    Route re-planning is known as one of the key techniques to guarantee the safe navigation of UAV. For genetic algorithm track re-planning is easy to fall into local optimal solution, this paper takes the adaptive crossover and mutation probability of genetic algorithm to solve local route planning problem. This algorithm avoids the track re-planning to finish early, and prevents the track into a local optimal solution. Simulation results show that the adaptive genetic algorithm meets the constraints of planning an approximate optimal track in the simulated environment, and improves the performance of the genetic algorithm tracks re-planning.
    Research on LMS Algorithm Based on Smart Antenna and MIMO
    WANG Bing;
    2011, 1(4):  14-16.  doi:10.3969/j.issn.1006-2475.2011.04.005
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    This paper researches on adaptive beamforming algorithm based on smart antenna, both of fixed step and variable step size belongs to LMS, and they are simulated with computer in simulated channels by Natlab. The simulated results indicate that the mean square error of variable step LMS algorithm has better convergence effects, and beamforming makes suppression of disturbance signal more accurately. It is proved to be effective.
    计算机仿真
    Design and Implementation of Simulation System Based on HLA
    LIN Liang-liang
    2011, 1(4):  17-20.  doi:10.3969/j.issn.1006-2475.2011.04.006
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    To facilitate the development of HLA simulation system and the transformation from other simulation systems to HLA, a simulation system framework based on HLA is designed. The development process of the federate is analyzed in detail, the development method of HLA interface is given, and the structure and development method of visual simulation system is researched. A simulation instance is developed on the basis of the above work. The success of above simulation instance shows that the designed simulation system framework and the given development methods above are feasible.
    Design and Implementation of Online Vocational Colleges Training Platform
    ZHOU Yi-fan
    2011, 1(4):  21-23.  doi:10.3969/j.issn.1006-2475.2011.04.007
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    Based on current online techniques, this paper designs and realizes the safe, flexible, open, crossplatform and crossregion online training platform based on framework of SOA. Online training platform provides virtual experimental surrounding and remote real experiments. Virtual experiments provide simulation software for network and hardware, and remote real experiments make it possible to do real experiments by login onto remote equipments. The online training platform solves some problems caused by lack of experimental resources in vocational colleges.
    数据库
    Design & Development of Outpatient Management Information System Based on C/S Structure
    JIA Jun
    2011, 1(4):  24-28.  doi:10.3969/j.issn.1006-2475.2011.04.008
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    The research object of the HIS article is a practical item, a large HIS. The article emphatically narrates demand analysis, the service flow analysis, the database design and the main modules used in the system. The program language of the system is PowerBuilder which is objectoriented, the data base is SQL Server. To improve operating efficiency and system development the system uses C/S architecture. 
    Research on Method of Export Data into Excel in C#.NET
    SU Qing;LI Zhong-liang;WU Wei-min
    2011, 1(4):  29-31.  doi:10.3969/j.issn.1006-2475.2011.04.009
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    In C# .NET, the commonly method of export the data in the component of DataGridView into Excel uses the Excel’s COM component to achieve it. But because the vision of Excel between the development machine and user’s machine installed maybe different, this method often leads to the phenomenon of incompatible. To solve this problem, the reflection technique is proposed to implement the interaction of C# and Excel. Through the experiment on the computer with different visions of Excel, the results show that this method can solve the problem of version compatibility very well. 
    图像处理
    Image Edge Detection Based on Dyadic Wavelet Transform
    DONG Yi-bin;Turghunjan Abdukirim
    2011, 1(4):  32-33,5.  doi:10.3969/j.issn.1006-2475.2011.04.010
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    This paper proposes an image edge detection algorithm based on dyadic wavelet transform. Dyadic wavelet uses modulus local maximum to extract the multiscale edge information and has the shiftinvariant features, so it has fast feature extraction and accurate edge detection. Comparison of edge detection results show that dyadic wavelet edge detection has better effect than reference[4], with obvious cell borders and clear edge.
    A Weighted Averaging Algorithm of Image Zooming-out Based on Image Sub-block and Corner Points
    XU Yu
    2011, 1(4):  34-36,4.  doi:10.3969/j.issn.1006-2475.2011.04.011
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    A weighted averaging algorithm of image zooming-out based on image subblock and corner points is presented. This algorithm overcomes the shortcoming of weighted averaging algorithm and leads to corner points distortion. First, according to the scaledown proportion the sub-block of every pixel at small image is obtained from original image, and then scans the block in corner-points image of the original image. If there is a corner point in the subblock, it can calculate the weighted map centered by this corner point. Otherwise, it calculates the weighted map centered by image center. This algorithm can keep more corner points than pure sub-block weighted algirithm by the method of weighted averaging for image zooming-out.
    Lane Detection Approach Based on Limited Region and Hough Transform
    FAN Kai;MO Jian-wen;ZHANG Tong;YUAN Hua
    2011, 1(4):  37-41.  doi:10.3969/j.issn.1006-2475.2011.04.012
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    Lane detection and warning is an important ingredient of intelligent vehicle vision navigation system. In order to enhance the realtime of lane detection, a method based on Hough Transform (HT ) of limited region is proposed. Firstly, deviding limited region by angle and range constraints of lane, and then, if there is eligible lane in the region, dynamic region of interest (ROI) is established, as a result region of HT is minimized and the total edge points is further reduced. With the different illumination situation, adopting corresponding selfadaptive measure in image preprocessing according to average gray, a result the noise immunity of algorithm is improved. The experiment results show that the approach has good realtime and noise immunity for the structured highway.
    信息安全
    Research on Information Security Evaluation Algorithm
    ZHANG Heng-shuang
    2011, 1(4):  42-44.  doi:10.3969/j.issn.1006-2475.2011.04.013
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    Due to the weak point of the statistical processing algorithm used in network information security evaluation, base on the characteristics of computer security, this article proposes the multivariate linear regression algorithm to obtain weight number contrast the way often used in selecting weight number of the weighted arithmetic mean. This algorithm can reduce the affection of human on the evaluation result, and improve the credibility of the evaluation result.
    Zero Knowledge Proofs Protocol Based on Paillier Cryptosystem
    YUAN Chun-ming
    2011, 1(4):  45-46,4.  doi:10.3969/j.issn.1006-2475.2011.04.014
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    The Zero-Knowledge Proof(ZKP)is a powerful tool which can be used and already be used for many cryptographic applications and ECommerce. But all existing Zero-Knowledge Proofs are iterative in nature, it increases the communication traffic of in interactive bilateral, and makes difficult in practice.This thesis proposes a new ZKP protocol which runs in oneround while ensure the completeness property, and the soundness property, and decreases the communication traffic in the maximum extent. The scheme is based on the Paillier Cryptosystem, and ascribes security to it. 
    Design of Intrusion Detection System Based on BP Neural Network
    XIA Shu-hua
    2011, 1(4):  47-49.  doi:10.3969/j.issn.1006-2475.2011.04.015
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    The traditional intrusion detection technology in build a statistical model, rule library management and the detection performance aspects have disadvantages and limitations, it impacts of the intrusion detection system application effect. This article proposes and uses Matlab toolbox to establish a neural network based on BP neural network intrusion detection system. Experiment results show that this algorithm improves the intrusion detection system detection accuracy, reduce the rate of false positives and fail, etc, and has certain advantages of convergence. 
    网络与通信
    Analysis and Evaluation of Multimedia Transmission Performance in Mobile Ad Hoc Networks
    QIU Jing-yi
    2011, 1(4):  50-53.  doi:10.3969/j.issn.1006-2475.2011.04.016
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    With the development of MANET, multimedia transmission has been taken more attention. This paper describes challenges of multimedia transmission in wireless Ad Hoc networks, and analysis various factors that affect multimedia transmission performance. Simulation results prove that GOP, quantization value parameters, packet size and packet error rate determine the performance of multimedia transmission, which will guide the design of multimedia transmission protocols in MANET.
    Integrating 3G Video to GIS Platform Using COM Technology
    LI Kuan;ZHANG Jun-xiao
    2011, 1(4):  54-56,6.  doi:10.3969/j.issn.1006-2475.2011.04.017
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    With the development of 3G communication technology, the bandwidth of the wireless network transmission completes a leap. With the 3G technology being integrated into the GIS system, it can provide maps, 3D maps and other functions. In addition, it allows users to access realtime audio and video information, sensor data and video playback functions to facilitate management and monitoring. This article uses the COM component technology to integrate data which is from different 3G terminals capture device to a GIS platform.
    Design and Development of Streaming Media Platform of P2P-based Video on Demand Technology
    LI Hai-ming;XU Jing;LI Yan-fei
    2011, 1(4):  57-60.  doi:10.3969/j.issn.1006-2475.2011.04.018
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    As streaming media applications on the popular Internet, the traditional C/S mode of streaming media service system can not satisfy server performance and high bandwidth requirements of the streaming media. It will seriously hamper the improvement of the quality of streaming media business and capacity expansion. This paper introduces a streaming media playing technology based on P2P network, which makes use of P2P network technology and streaming media technology and takes the fullest advantage of the resources of client computers, to reduce the streaming media server and network load and break through the bandwidth bottlenecks of the traditional streaming media playing system, to maintain playing program integrity and smooth flow. In this paper, MVC mode and Java objectoriented method is used to develop the video on demand site. The site uses P2P streaming media technology to achieve a campus streaming video on demand. 
    Design and Implementation of Enterprise E-mail System Based on James Technology
    YANG Xu-shi
    2011, 1(4):  61-63,6.  doi:10.3969/j.issn.1006-2475.2011.04.019
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    With the rapid development of Internet, E-mail has become an indispensable means of extensive exchange. Traditional E-mail is to send and receive via E-mail Client, it needs to fill in some parameters, which is a difficult thing for the one not very familiar with computer. The mail system adopts the office automation as the development background. With JavaMail framework, this paper studies how to develop the James mail server for completing office automation.
    Research on Internet Topology Visualization Tool GeoPlot
    HE Peng;LU Jian-xin;SHI Quan
    2011, 1(4):  64-67.  doi:10.3969/j.issn.1006-2475.2011.04.020
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    GeoPlot is a lightweight Java Applet which allows users to create a geographical image of a data set. The Applet provides the user with many options to represent the data set as topology map. It is valuable for monitoring and analysing topology and link of the Internet.This paper introduces the function, parameters and data of GeoPlot.
    Supply Water Warning Mechanism Based on Optimized Combination with Neural Network
    ZHENG Xiu-mei;LUO Xian;DENG Juan
    2011, 1(4):  68-70,7.  doi:10.3969/j.issn.1006-2475.2011.04.021
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    On the basis of theoretical analysis of the early water supply warning mechanism, gathering a variety of information contained with some single models, the best way combination with single models are proposed based on the results of early warning mechanism based on the early warning of optimized combination with neural network, it can forecast error with gray model results. The model has good predictive and early warning effect, so as to provide a new water supply early warning methods and ideas.
    Design and Application of Practical Teaching Platform of Network Course Based on LAMS
    ZHANG Cheng;JIN Jing-lin;JIN Min
    2011, 1(4):  71-74.  doi:10.3969/j.issn.1006-2475.2011.04.022
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    The rapid development of IT technology makes network course building programs spring up,but the online course which really can improve the overall quality of teaching, breaking the traditional teaching model which is seriously lagging behind, thus students can access learning resources to achieve
    effective learning, realizing efficient interaction, still have a long way to go. By the introduction of network course management: system named NC-LAHS (Network CourseLearning Activity Management System) of principles of computer organization and design sequence of teaching activities, the paper tries to explore the teaching method based on it to realize practicality, and efficiency.
    Application Research on Triple Play Technology for Oil and Gas Fields in Sichuan
    YANG Kai
    2011, 1(4):  75-78.  doi:10.3969/j.issn.1006-2475.2011.04.023
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    In the next few years, triple play is a policy, market and technology trends. Firstly,this paper introduces the development of triple play, key technologies, network infrastructure, and some of the relevant application protocol. Secondly,triple play technology of oil and gas fields in Sichuan are analyzed.Finally, in different settings, proposes in the Sichuan oil and gas fields of the triple play applications with status of oil and gas fields in Sichuan communication system.
    Analysis and Design of Content Management System Based on WordPress
    DAI Yi-ping
    2011, 1(4):  79-83.  doi:10.3969/j.issn.1006-2475.2011.04.024
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    In this paper, from solving for solving many problems of Content Management System(CMS) in traditional site, this paper proposes the use of WordPress to set up and manage Content Management System, it effectively solves the common problems and needs of the user site building and information publish. And elaborates the basic concepts, introduces the module, the module function of the realization, and the security in the system in detail.
    应用与开发
    Design and Implementation of Access Control Model Based on Classification Management
    WANG Wei;CHENG Geng-guo
    2011, 1(4):  84-87.  doi:10.3969/j.issn.1006-2475.2011.04.025
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    In order to overcome the insufficient access control for information and the complex operation in the model of RBAC, a new access control model based on classification management is put forward. It startes from the analysis of corporate management structure, then simulates the process of internal information flow, and introduces the concept of “representation”, extractes three basic attributes in the role and characterization, at last draws this model and gives its realization. The model is an effective expansion for traditional access control model, it performs well in practice, and provides a new idea for the research of access control.
    Design of Agriculture Information Integrated Service Platform Based on .NET
    LI Dong-yuan;ZHOU Wen-hui;MO Jian-bin
    2011, 1(4):  88-91,9.  doi:10.3969/j.issn.1006-2475.2011.04.026
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    A agriculture information integrated service platform is developed according to the rural informatization development, with the purpose of being prosperous and unhindered management. Most functions can be implemented with SMS, WAP, Web, voicein, etc., including information publish, business subscription, clients management, statistical analysis, etc.. This platform is developed based on. NET, including portals, business undertaking management subsystem, ICP(Internet Content Provider) management subsystem and so on. Most key technologies are discussed emphatically, touching upon multiple roles information channel net, information super matching access technology, twodimension information retrieval technology, SMS/MMS gateway interface technology. Application and dissemination of the platform makes clear the informatization that are achieved in agriculture productionsupplymarketing and production are increased.
    Design and Comparison of Multi-coupling Mode’s RFID Reader
    LIU Yang;LI Jun-feng
    2011, 1(4):  92-95.  doi:10.3969/j.issn.1006-2475.2011.04.027
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    Different transmit mode, frequency and distance between RFID reader and tag lies on different coupling modes. Currently, there are three coupling modes between reader and tag: dense coupling, inductive coupling and electromagnetic reverse scatter coupling. This paper mainly discusses the principle of three coupling modes, and schemes out the reader models of inductive coupling and electromagnetic reverse scatter coupling, and compares with them.
    Application Research on Energy-saving Emission Reduction Technology at Data Center
    DU Zhi-yuan;ZHANG Ren-qing;CHEN Chang-xin
    2011, 1(4):  96-98,1.  doi:10.3969/j.issn.1006-2475.2011.04.028
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    The energy-efficient data center problem has been paid attention more and more, this article proposes some technologies to realize energy-saving, based on the current development situation of dala center energy-saving. Using these ways, it not only can save great of electric power changes and extent equipments life, but also can decrease the environment influence cased
    by data center consuming. It helps enterprises to establish image.
    Design and Research on Interest Model for Vehicle Monitoring and Scheduling System
    XU Li-ming;SONG Zhuan;MA Yue
    2011, 1(4):  99-103.  doi:10.3969/j.issn.1006-2475.2011.04.029
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    Accrording to the different requirements of applications of vehicle monitor and scheduling system, three interest models of GPS monitoring are abstracted,including position interest model, path interest model and region interest model. By making full use of historical track information of vehicle position, solutions and concrete algorithms of interest models above are constructed. The result of experiment demonstrates the reliability and effectiveness of proposed algorithms.
    Topology Modeling Method and Its Application Based on Class and Connection Definition
    LI Wen-jing;CUI Mao-lin
    2011, 1(4):  104-106,.  doi:10.3969/j.issn.1006-2475.2011.04.030
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    This paper proposes a flexible and efficientobjectoriented topology modeling method. Using this method, Class and connection are abstracted to build the topology modeling. The modeling system can create the topology graphics with topology modeling automatically. The topology graphics can be built rapidly to fit the user requirement. A topology modeling for telecom operating and support system are described as an instance.
    Research and Design of Operation System of Chain Store Based on SOA
    PENG Yong;ZHENG Hui-jun;DONG Chong-jie
    2011, 1(4):  107-111.  doi:10.3969/j.issn.1006-2475.2011.04.031
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    The thesis analyzes the current situation of Operation System of Chain Store(OSCS). There are new requirements to IT application in increasingly competitive chain store. The existing business system can not meet the changing organizational structure and new requirements. The thesis also studies the related theory of SOA and WCF technologies and discusses how to take WCF to implement SOA, moreover, focuses on the basic steps of realizing SOA with WCF.
    Animation and Higher Mathematics Teaching Based on Matlab
    HONG Xiao-fen
    2011, 1(4):  112-114,.  doi:10.3969/j.issn.1006-2475.2011.04.032
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    The paper demonstrates dynamically and visually the graphs of some abstract functions and the forming process of quadratic surfaces in higher mathematics by using Matlab’s animation principles, thus it is helpful for students to have a thorough understanding and grasp the concept of higher mathematics and the way of its thinking.
    Design and Realization of Radio Station Backup Equipment
    YANG Zhi-yong;MENG Lian-rong
    2011, 1(4):  115-118.  doi:10.3969/j.issn.1006-2475.2011.04.033
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    In order to strengthen the informatization management, this paper realizes a radio station backup equipment management system, taking the situation of radio station backup equipment management as background. It introduces system architecture, design, framework and logic structure and its codes. The system obtains higher appraisal in actual use.

    Compiling Analysis and Transplant of U-boot Based on Makefile
    MI Yuan-gen;LI Gang
    2011, 1(4):  119-123.  doi:10.3969/j.issn.1006-2475.2011.04.034
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    Bootloader is a very important segment in software development of embedded system, now uboot is a popular, powerful and openresource bootloader, which codes are compiled under the control of project file in the make tools named makefile. This paper focuses more on the progress to compile uboot based on makefile in Linux operation system. In the end, the uboot is transplanted in FS2410 board via the configuration and edit on the correlative files.
    Application of Workflow Technology in Court Management System
    LIN Wen-shui;WANG Jian-dong
    2011, 1(4):  124-127,.  doi:10.3969/j.issn.10062475.2011.04.035
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    Court management system is to achieve case acceptance, filing, trial, and case settlement process for an integrated management system, case has more diversified feature. This paper using workflow technology, designs and implements a court case management system. This system based on WfMC proposed workflow reference model 0. abstracts tasks, roles and permissions in the trial of cases, and integrates perfectly acceptance, filing, trial, close of case in dealing the case by the workflow technology. Thus, it meets the need of the diversity of case and reproves the efficiency.
    Implementation of Auto Drawing S-P Chart Based on PowerBuilder
    WANG Xian-qian;ZHOU Yan-ling
    2011, 1(4):  128-130.  doi:10.3969/j.issn.1006-2475.2011.04.036
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    This paper, based on features of the main properties of S-P chart and S line, P line drawing, by the line object expression in datawindow of PowerBuilder, realizes data preparation, sorting and auto drawing S line and P line of S-P chart.
    Research on FNN Controlling in Central Air-conditioning System
    DENG Jin-mei
    2011, 1(4):  131-134,.  doi:10.3969/j.issn.1006-2475.2011.04.037
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    As a high energy-consumption system in widespread application, the energysaving problem of central air-conditioning system is an important problem to be paid much attention. Considering the shortcoming of the traditional fixedflow method, an improved method of load servo tracking is proposed. In order to decrease the energyconsumption of central air-conditioning system, this paper proposes an improved method to monitor the load of ccntral airconditioning system and control the pump motor by a computer. Tracking servo system model based on fuzzyneural network theory is established, and the improved model is simulated by practical datum. Simulation results show that the central air-conditioning system increases the system efficient, and decreases energy-consumption.
    Research on an Optimized Task Allocation Method
    MENG Hai-zhan
    2011, 1(4):  135-138.  doi:10.3969/j.issn.1006-2475.2011.04.038
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    In the computer field, with the rapid increase in data volume and complexity of tasks to be processed, it is the development trend of the future that multiple computers complete one task together. As a result, it is the prerequisite for dealing with the task In the computer field, with the rapid increase in data volume and complexity of tasks to be processed, it is the development trend of the future that multiple computers complete one task together. As a result, it is the prerequisite for dealing with the task efficiently to research a reasonable task allocation method. Currently, it is a hot to research the methods of task allocation in MAS(Multi-agent System). This paper proposes an optimized task allocation method based on the implementation and transmission costs in MAS. First, it builds a model for task allocation problem, using this model, and then it deduces the objective function for evaluating the effect of task allocation in MAS. Finally, the paper uses a case to prove the optimized model is more effective which solving the task allocation problem.
    Research on Information System Construction of Public Security Based on GIS
    WAN Yi
    2011, 1(4):  139-141,.  doi:10.3969/j.issn.1006-2475.2011.04.039
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    Public security agencies to fight crime, maintain law, order, service management duties, the community work together, and rapid response characteristics of the work determines need to use geographic information technologies. Combined with the current status of geographic information systems development, this paper describes the construction of the idea of police geographical information system, system design, analysis and presentation capabilities to do.
    Study on Intelligent Evaluation Method of Quality Project
    WANG Chun-gang
    2011, 1(4):  142-144.  doi:10.3969/j.issn.1006-2475.2011.04.040
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    In order to improve the evaluation of Quality Project, this paper designs an intelligent evaluation management system. Fuzzy comprehensive evaluation model is introduced in this system according fuzziness of evaluation factors. This model is used to evaluate every step of the procedure including initial application, middle examination, and final inspection. It can guarantee the scientificalness and fairness of the evaluation and further improve the management efficiency and service quality.
    Research on Correcting Exam Papers System About Office Software
    ZHU Ke-wu
    2011, 1(4):  145-148,.  doi:10.3969/j.issn.1006-2475.2011.04.041
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    In this article, a technique scheme of correcting exam papers about Office software is studied and presented with the use of Word, Excel, PowerPoint object model and the combination of database theory, including the design of database system, the object and property of the Office component, the method of realizing system. This system achieves the aim of automatically correcting the exam papers, and improves teacher’s work efficiency, moreover, it provides some reference for correcting other subjects’ exam papers.
    Development and Research on Multimedia Application Based on Android
    LI Yang;FENG Gang;LI Liang;LUO Yong-hua
    2011, 1(4):  149-152.  doi:10.3969/j.issn.1006-2475.2011.04.042
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    This paper first introduces and analyzes the hierarchy of Android platform and some developing techniques based on it. Then introduces the multimedia application interfaces provided by Android, and the basic development procedure of a multimedia application. At last, it illustrates them with a simple media player.
    Analysis of Universal Problem in Mixed Programming Technique with Matlab Based on COM
    ZHANG Wen-jun;WAN Yu
    2011, 1(4):  153-155,.  doi:10.3969/j.issn.1006-2475.2011.04.043
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    At present although there are many articles on mixed programming technique using Matlab with VB or VC based on COM, but there is few article on analyzing the problem encounter during mixed programming. For developing the stability and efficiency of the mixed programming technique with Matlab based on COM, the common processing of the mixed programming technique is introduced and some questions which may be encountered usually are listed. The analysis corresponding to questions is also listed. It enhances the practicability of the mixed programming technique and may be helpful for the beginner.
    Scheme of Traffic Road Monitoring Based on WLAN Technology
    XU Bin;YOU Bing
    2011, 1(4):  156-158.  doi:10.3969/j.issn.1006-2475.2011.04.044
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    On the basis of expounding the present situation of traffic road monitoring system, the applications of WLAN technology are analysed. Through researching on basic requirement for surveillance cameras, the scheme road monitoring based on WLAN technology is pointed out, and several difficult questions such as the frequency selection of the wireless transmission equipment, frequency division and the network bandwidth which is needed in road monitoring are discussed.