Proceedings of the 2012 International Conference on Computer Application and System Modeling

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400 articles

An Analysis on the Automobile Interior Assembly Line Balancing Based on eM-plant

Shuang Liu, Sibao Jiang, Kaihu Hou
In this paper, the virtual environment of automobile interior assembly line is built by object-oriented modeling technology, aim at the problem of unreasonable processes, overmuch work-in-process (WIP) and long production cycle etc. in the assembly line of automobile manufacturing enterprises. The simulation...

The Reliability of Mechanical Equipment Based on Fuzzy Comprehensive Assessment

Guoqiang Cao, Feng Shi, Shuai Yang
The reliability indexes is the very important link for guaranteeing the precision, function, using life span for mechanical equipment. The paper introduces the fuzzy factor of fuzzy assessment for the reliability check and index in the light of the typical model of machinery equipment fuzzy appraise...

Location Prediction Weighted Clustering Algorithm Based on WNNM in Ad Hoc Network

Yi Sha, Li Huang, Jiafu Chu, Lili Zhang
Introducing a wavelet neural network model (WNNM) at a route maintenance stage to predict the position of nodes in ad hoc networks, a new weighted clustering algorithm (WCA) is presented. Using the nodes’ position information from GPS, this algorithm predicts the position of nodes at next time by WNNM,...

Modeling and Simulation of Fresh Air System with LHTS and Solar Energy

Lili Wang, Tao Zhang
State of the research about the technology of solar energy with LHTS Latent Heat Thermal Storage at home and abroad was firstly introduced, and a fresh air system with solar energy and LHTS was then introduced. After that the fuzzy control system of fresh air temperature was studied. Firstly, a mathematical...

An E-HICH Structure for Enhanced Uplink in LCR TDD

Lijuan Wang, Mingguang Ouyang
A reasonable E-HICH channel structure will consume the least system resource but possess the capacity of bearing the needed information while it could be shared by multiple UEs. In this paper, all the above factors are considered and an E-HICH structure for enhanced uplink in LCR TDD is designed.

Perspectives on Internet of Things and Its Applications

Xiaoping Xue, Guobin Li, Luoxian Liu, Mingyang Liu
This paper surveys the concept, architecture, key characteristics and technologies of IoT, especially intelligent identifying and sensing technologies, data uncertainty, data representation methods, massive data storage and processing scheme, security and privacy. Based on existing research, we propose...

A Dynamic and Efficient Grid Task Scheduling Strategy

Jianguang Deng, Yuelong Zhao, Huaqiang Yuan
A dynamic and efficient grid task scheduling strategy was proposed in this paper by combining the genetic algorithm and the ant algorithm. The proposed method integrated the global search capability of the genetic algorithm and the solution precision of the ant algorithm; moreover, it avoided the imprecise...

Numerical Simulation for the Effect of Joint Inclination to the Stability of Stratified Rock Slope

Qihong Wu, Zhiyong Kou, Shiming Wan
Slope excavations are often constructed in stratified host rock masses in practice. In order to describe the effect of the inclination of layer of rock mass to the factor of safety of slope. a rock slope in one road is chosen as the engineering project. In the present paper, the stability mechanism of...

Numerical Simulation and Analysis Of PCM on Phase Change Process Consider Natural Convection Influence

Lin Qiu, Min Yan, Zhi Tan
A phenomenon of heat energy storage and release in phase change materials (PCM) which used in building retaining structure has been investigated. In the reality process of phase change, liquid phase has two ways of heat exchange: pure heat conduction and natural convection. To analyze the reality melting...

Establish of Electricity Market Model with Variable Coefficient and Analysis of Its Practical Stability

Yuhua Yang
The paper analyzes the dynamic equilibrium of the electricity market by using the principle of economics and establishes the non-autonomous linear discrete periodic mathematic models, the models describe the actions of the electricity market under the assumption that market demand is the linear function...

Group Audio Application with Flash Multicast Streaming Based on RTMFP

Linghong Xue, Fuan Wen, Chunmei Fan, Jun Wang, Xiao Wang
In order to improve the user experience and reduce the operators’ cost, Real-Time Rich Internet Application (RIA) has become more and more important compared with other Web Applications. Real-time RIA combines the Multimedia and Real-time experience in the client side, which provides the live collaboration...

An Efficient Consistency Algorithm for Solving Tighter Solution Space of Temporal Constraint Optimization Problem

Wen Zhang, Yanguang Zhu, Yifan Zhu
This paper mainly gives an efficient consistency algorithm for solving tigher solution space of Temporal Constraint Optimization Problem (TCOP), and it is a variation of Path Constraint (PC) that is widely used in the domain of Constraint Satisfaction Problem (CPS). The algorithm can find out the feasible...

Research on the Design Theory of Swirl Generator Attached to a New Bidirectional Flowmeter

Huazhi Li, Qianchao Liang, Hanguo Cui, Shun Zhang
Based on the application of hydrodynamics, a new method of designing the swirl generator attached to a new bidirectional flowmeter is put forward. The 3-dimensions simulation in CFD is carried out to study the fluid motion for various amount of vanes attached to the swirl generator and various intake...

Urban Public Transportation Network Planning Method Based on Transit-oriented Strategy

Ming Gu, Bin Xu, Yongzhong Hu
This article proposed a transit-oriented planning for urban public transport situation. Adjust the existing passenger OD matrix according to the city development plan. Propose an optimization on the adjusted OD matrix to achieve the shortest travel time, direct access to the largest passenger flow target....

An Analysis Method for Negative Feedback Amplifier Network Based on Dual-port Network Model

Li Gu, Li He, Yong Liu, Zhuang Sheng, Yang Wang
Block diagram and dual-port network are common methods to solve negative feedback amplifier but with unsatisfied limitations and disadvantages. This paper addresses a new method based on dual-port network to solve the negative feedback amplifier, which shows much clear electrotechnical meaning. The effectiveness...

No-tillage Planter’s Stubble Breaking Device Modeling and Finite Element Analysis of the Disc

Hongli Wang
The Stubble breaking device is one of the most important components of the no-tillage planter. It directly influences the stubble breading effect, and even the performance of the complete machine. By the 3D parametric modeling software Pro/Engineer, 3D solid modeling of the stubble breaking device’s...

An Improved Ant Colony Based Algorithm for Dynamic Routing and Wavelength Assignment Scheme in Optical Networks

Jianhua Shen, Xi Cheng
Dynamic routing and wavelength assignment (RWA) is a key problem in intelligent optical networks. This paper presents an improved ant colony algorithm to solve the RWA problem which introduced link idle as constraint into the ant transition probability. At the same time, the random disturbance is added...

Image Segmentation Based on Visual Perception Model

Shuai Shao, Fuqing Duan, Ping Guo
Image segmentation is the basis of image processing and image analysis. However, there are no common method that can be used in natural images, and present methods fail to explain understandings of human’s visual system. In this paper, we propose to apply Karklin's visual perception model to extract...

Reverse 1-median Problem with Constraint in Trees

Jianfang Yang, Juan Jiang
Different from classical location problem, the reverse problem is how to improve the network as efficient as possible within a given budget when the facilities have already been located in a network and cannot be moved to a new place. This paper concerns the reverse 1-meidan problem with constraint in...

Simulation of Liesegang Pattern Formation Using Lattice Boltzmann Method in three Dimensions

Wei Qiang, Hui Cao
The Liesegang pattern formation in three dimensional reaction-diffusion systems is numerically simulated using a lattice Boltzmann method. The reaction and diffusion processes are characterized using the multicomponent lattice Boltzmann equation with three dimensions and fifteen directions. The precipitation...

A Simple Cerebellar Control Scheme Applying to Robot Coordinated Movement

Shaobai Zhang, Xiefeng Cheng
The cerebellum has long been thought to play a crucial role in the forming of graceful movements, and it is viewed as a set of modules, each of which can be added to a control system to improve smooth coordinated movement, with improvements continuing and improving over time. The present paper proposes...

LVS Cluster Technology in the Research and Application of State-owned Asset Management Platform

Zhike Han, Quan Pan
State-owned asset information management focuses on the process monitoring and data mining analysis, due to the state-owned enterprise asset management group information on the existence of multiple levels of management, the number of users and more users and more data reliability, high security requirements...

Simulation Analysis and Application of Three-Phase Alternating Circuits by Multisim 10 Software

Lei Fang, Wen Zheng, Jianhong Zhang
The paper introduces simulation analysis and application of three-phase alternating current circuit by Multisim 10 software. As a well-known software in circuit simulation analysis, Multisim shows many advantages, such as friendly user interface, powerful functions and easily to operate. The paper takes...

An algorithm of Model Selection for Support Vector Regression

Xuesi Li, Hongqiao Yang, Jing Sun, Yangang Bi, Yuanli Wu
To solve the problem of SVR (support vector regression) model selection, this paper proposed a SVM (support vector machine) model parameter optimization algorithm based on gradient descent algorithm. The algorithm obtained the local optimal model parameter by minimizing the model evaluation criteria...

8b/10b Encoder Design

Qiaoyu Xu, Huijie Liu
In order to resolve the problem of base-line offset and unbalanced code flow during the fiber data transmission, thesis give a simple and practical solution:8B/10B encode. This solution taking an method which integrate checking scheme and logic operation, through Verilog HDL description language, realize...

Design of IRIG-B Code Encoder Based on SOPC

Qiaoyu Xu, Xing Wang
Aiming at the complexity of time unified hardware architecture, this paper presents the design scheme of IRIG-B encoder and system control based on SOPC. The NIOSII processor is configured with NIOSII IDE. Firstly, the design of IRIG-B(DC) coding module is accomplished to realize with Verilog HDL, and...

Integrating Solid Cutting Simulation And Error Verification For Surface Machining Application

Yu Cheng Hsin, Peng Tsai Jo, Chou Kao Yung
In this paper, a method integrating NC decoding and solid milling simulation to solve this problem is proposed. A modified Z-Map computational algorithm is adopted and it directly uses straight line and arc interpolation algorithms to calculate mesh position and Z coordinates of tool scanning surface...

Observer-based Guaranteed Cost Control for a Class of Singular Time-delay Systems with Uncertainties

Na Zhang, Yuechao Ma, Jianyun Liang
The problem of guaranteed cost observer-based controller design for a class of singular systems time-delay with uncertainties is investigated. The design method of guaranteed cost observer-based controller is given. Based on linear matrix inequality (LMI) approach, sufficient conditions for the existence...

Intelligent Fault Diagnosis Based on ANN: A Review

Haipeng Pan, Bo Chen
An overview of the fault diagnosis method based on Neural Network is presented. Some models based on neural network for fault diagnosis are discussed, and the problems existing in the fault diagnosis technology and the key study direction are also pointed out.

A New Smoothing Nonmonotone Trust Region Method for Solving Nonlinear Complementarity Problems

Ying Ji, Yijun Li
In this paper, we propose one new smoothing nonmonotone trust region method for solving nonlinear complementarity problems with 0 P functions. First, the nonlinear complementarity problem (NCP) is reformulated as a nonsmooth equation. Then on the basis of the reformulation, a smoothing nonmonotone trust...

Application of Compounding Feedforward PID Algorithm in the Positioning Control of Computerized Flat Knitter

Haipeng Pan, Xiaoyan Feng, Minming Gu
In allusion to the problem of low positioning precision in the handpiece positioning control of computer knitting machine, this paper applies the compound feedforward PID control algorithm to the position control system, combines with 51 Micro Control Unit (MCU) to realize the high-precision positioning...

PID Algorithm and Fuzzy Control Algorithm in Step-less Speed Adjusting System Control with PLC

Yaolin Zhao, Dapeng Xing
close loop step-less speed adjusting system is widely used in industrial control which is based on PLC and frequency converter. For getting better transient state function, and assure the speed adjusting smoothen and steady, PID and fuzzy control algorithm were independently used in the system controlling...

Study on Multi-criteria Personalized Recommendation Algorithm

Ya Luo, Li Zhao
Personalized recommendation plays an important role in E-commerce. Single-criteria recommendation algorithm has the features of simplicity and high efficiency but also can easily have the problems of cold startup and sparse data. Multi-criteria recommendation algorithm is to carry out prediction from...

ARIMA Prediction Model-based Cluster Algorithm in Ad Hoc Networks

Yingyu Cao, Ting Cao, Huang Ye, Yang Yan, Jiafu Chu
The paper introduces prediction mechanism in weighted clustering algorithm (WCA). Time series model (ARIMA) is embedded into the algorithm during routing maintance to predict the network node location. Combining with location information of nodes provided by GPS systems, the algorithm uses ARIMA to predict...

Use Data Fragment Technology to Speed Queries of Mass Data

Hao Ouyang, Xiaoyong Lu, Ping Yang
Based on the study about the common methods of speeding queries, a new project of using data fragment technology to speed queries of mass data has been advanced. At the same time, the technologies of database synchronization and load balance scheduling are also solved in the project. As an example, the...

Thermal Economy Analysis Model with Matrix Method for the Secondary Loop of PWR Nuclear Power Station

Yongling Li, Yu Huang, Jin Ma, Binshu Wang
According to characteristics of Pressurized Water Reactor PWR nuclear power station, the two-stage moisture separator reheater (MSR) model was proposed with thermal equilibrium equation and mass conservation equation, finally the thermo-economy analysis model with matrix equation for secondary loop was...

Research of Virtual Test Platform for Marine Instrument

Yi Zheng, Zhongqiu Wang, Juncheng Wang, Hongru Wang
Virtual test Platform for marine instrument could provide visualized and interactive simulation solution for the development process. It could be used for virtual test or virtual experiment of mechanical or electro characters of marine instrument. The marine virtual instrument test environment is established...

Visualization of Virtual Maintenance Constraints

Yongsheng Shi, Jie Fan
To resolve problems of virtual maintenance system for aircraft, based on the analysis of domestic and international research, propose constraint visualization framework based on virtual disassembly object model. Discusses the main modules of the system, ways to achieve functions and key technologies....

Design and Simulation of IIR Filter under Graphical User Interface

Xuemin Zhang, Shixin Liu, Xiuyan Wang
A novel method to simulate the IIR filter based on GUI(Graphic User Interface) is introduced in this paper. This method not only depended on Matlab code, but also made use of controls which generate a GUI. All the operations have been done by GUI. This paper took bilinear transformation method to realize...

An Index Weighting Method of Integrating Analytic Hierarchy Process and Rough Set

Qing Xue, Changwei Zheng, Yonghong Liu, Tao Hu
In order to solve some problems in index weighting method, this paper combined subjective judgment matrix of Analytic Hierarchy Process (AHP) with objective matrix based on rough set to get the combined judgment matrix, and calculated the weight of combined Judgment. Example showed that the method was...

The Research of Memory Model Based on Granular Computing

Wenchao Xu, Enjuan Wang, Qing Xue, Changwei Zheng
To simulate human memory, this paper introduces granular computing into modeling of memory, establishes a three order system, divides the memory model into instantaneous memory module, working memory module and the long-term memory module, filters out the memory information, granular coding the information...

Behavior Model of Virtual Soldier Based on Hierarchy Structure

Xue Qing, Qing Deng, Weizhen Luan
In the Military Operations on Urbanized Terrain(MOUT) Simulation It is a challenging task how to build Behavior Modeling of Virtual Soldier for apperceiving information form virtual city and accomplish independent behaviors. The thesis presents a object-oriented behavior model of virtual soldier, Which...

An Analysis of Web Mining-based Recommender Systems for E-commerce

Ya Luo
This article proposes a framework of Web miningbased recommender systems for e-commerce. Building on clustering analysis of data involving Web usage, content and structure, the author demonstrates how to provide users with effective recommender services according to the mining results obtained by recommender...

General Purpose Framework Designing for Network Security Test Devices Based on Multi-core Processor

Guozhen Shi, Fenghua Li, Li Li, Hanzhang Shi
In view of the present situation that network security equipments are deployed widely but their security strategies are not open to public, this paper analyzed currently used general test method for network security equipments, proposed a general purpose framework for test devices based on multi-core...

A Modified Homomorphic Filter for Image Enhancement

Hailan Gu, Wenzhe Lv
In the paper, the homomorphic filter is improved , and a new filter is made , which is based on the low-pass frequency filter and high-pass filter. The performance of the new filter is analysised through comparing to other classical filter. The new filter is experimented, and its application was discussed.

Researching on AODV and PS-AODV Routing Protocols of Ad Hoc Network for Streaming Media

Jie Tian, Yu Wang, Jianxing Lv
Streaming media on wireless Ad hoc network becomes increasing popular, because of its huge potential market demand. In this paper, we propose a PS-AODV routing protocol based on an algorithm for path selecting and acknowledge refused, make improvements on AODV. The result of simulation shows that the...

Three-dimensional Vision Development of Gun Shooting Training System in MOUT

Changwei Zheng, Xiaoming Ren, Qing Xue, Yonghong Liu
Gun shooting training system in MOUT is a simulation system which can replace the real equipment and ammunition. The system is taking MOUT as background, can realize shooting commander training and shooting operation training which will raise the application ability of mortar in MOUT. This paper discusses...

Research on The Static Robust and Vulnerability of Internet on The Level of Isp

Yun Fu, Hongli Zhao, Haitao Yang
A metric called S -resilience is comed up with aimed at the fact that the existed metics which evaluate the robust and vulnerability have disadvantages. Evaluate the measured ISP network of Internet with S -resilience, compared the performances to the same scale random graphs and scale-free networks....

K-coverage Algorithm Based on Target Association in Wireless Sensor Network

Zeyu Sun, Chuanfeng Li
During the process of carrying out K coverage algorithm of WSN to the target area, there are some shortcomings, such as many redundancy nodes will emerge, the process consumes a lot of node energy in the network at the same time, and the process is easily restricted by the outside environmental elements....

Structure Optimization Based on 3d Modeling to a New Hydraulic Boarding Ladder

Jing Liu, Meiping Wu, Jun Zhang
The existing boarding ladders for maritime operations, loading and unloading of passengers are with the problems of complicated structures, low level of automation and even safety problems. Aiming at solving the problems, this paper reseraches and develops a new type of hydraulic boarding ladder and...