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Non-contact Measurement of Wheelset Geometric Parameters Based on Optoelectronic Techniques

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Non-contact Measurement of Wheelset Geometric Parameters Bas...

中国光学学会2010年光学大会

作者： Zhang Zhi-feng 1,Gao Zhan 2,Zhang Fang-zhen 3,Su Zhan 4,Ren Yu-fen 1 (1.Department of Physics,zhengzhou university of Light Industry,zhengzhou,450002 2.Key Laboratory of Luminescence and Optical information,Beijing Jiaotong university,Ministry of Education,Beijing 100044 3.Henan college of Finance & Taxation,Department of information,zhengzhou 450002 4.Henan Automation engineering and Technology Research Center,zhengzhou 450008)

The geometric parameters of wheelsets,such as flange thickness,and rim width,and rim inside distance,are key parameters that influence the wheel-rail *** online measurement techniques of these parameters are important to ensure the safety of train vehicle and increase the reliability and efficiency of *** paper purposed the measurement system based on the optoelectronic *** measuring system is composed of the trigger sensor and the laser displacement sensors fixed on the rails and the system can measure the wheelset’s parameters when trains pass *** measuring results are improved by the wavelet analysis *** average value difference is between 0-0.3mm comparing the system and the manual that shows two methods are *** trains pass through the measuring system under the speed of 10km/h,measuring results shows that the system can meet with the measuring requirement on line.

关键词： optoelectronic techniques wheelset laser sensor wavelet analysis denoise

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一个改进的基于DSP的说话人确认系统

计算机工程与应用 2004年第31期40卷 204-207页

作者：王炜张志华王波王炳锡信息工程大学信息工程学院郑州450002

论文介绍了一个基于DSP的说话人确认系统,该系统确认算法建立于高斯混合模型-全局背景模型(GMM-UBM)的基础上,并在特征空间采用一种新的基于信息熵特征融合的算法,实验结果表明在不影响识别率的情况下,该算法计算量比传统的特征关联融... 详细信息

论文介绍了一个基于DSP的说话人确认系统,该系统确认算法建立于高斯混合模型-全局背景模型(GMM-UBM)的基础上,并在特征空间采用一种新的基于信息熵特征融合的算法,实验结果表明在不影响识别率的情况下,该算法计算量比传统的特征关联融合的要减少以上,比归一化融合要少。硬件系统采用高速DSP芯片TMS320C6701,为确认算法的实时实现提供了保证。

关键词：说话人确认特征融合实时系统

OFDMA系统中接纳控制的Petri网模型

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系统仿真学报 2009年第23期21卷 7675-7677,7680页

作者：马玉琨陆彦辉杨守义郑州大学信息工程学院郑州450001 河南科技学院信息工程学院新乡453003

利用Petri网构造了OFDMA系统中接纳控制的模型。接纳控制在OFDMA系统中起着很重要的作用,而随着用户需求的不断增长以及业务类型的多样化,建立一个合适的随机服务模型对于接纳控制来说尤为重要。Petri网采用可视化图形描述系统的静态结... 详细信息

利用Petri网构造了OFDMA系统中接纳控制的模型。接纳控制在OFDMA系统中起着很重要的作用,而随着用户需求的不断增长以及业务类型的多样化,建立一个合适的随机服务模型对于接纳控制来说尤为重要。Petri网采用可视化图形描述系统的静态结构和动态结构,为系统的随机服务模型提供了良好的描述手段。仿真和理论分析的结果完全吻合,表明把Petri网用于构造移动通信系统的无线资源管理模型是完全可行的。

关键词： OFDMA 接纳控制 Petri网阻塞概率

A Burst Segmentation-deflection routing Contention Resolution Mechanism Based on Priority in Optical Burst Switching Networks

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A Burst Segmentation-deflection routing Contention Resolutio...

中国光学学会2011年学术大会

作者： Aihong Guan,Boyun Wang college of information Science and engineering,Henan university of Technology,zhengzhou,Henan 450001,People’s Republic of china

In order to guarantee quality of service（QoS） of different priority bursts and effectively reduce the packet loss probability（PLP）,a burst segmentation-deflection routing contention resolution mechanism based on priority in optical burst switching networks is proposed in this *** the core node,contention is resolved through incorporating prioritized burst segmentation with deflection routing *** burst segmentation scheme allows the head of contending bursts or the tail of original bursts to be *** segmented burst is scheduled on the optimum deflection path by deflection routing *** analytical model is proposed to evaluate the contention resolution scheme through calculating PLP and the normalized end-to-end *** show that high-priority bursts have significantly lower PLP and delay than *** the contention resolution scheme which incorporate burst segmentation with deflection routing tends to perform better than the scheme only with burst segmentation or deflection routing.

关键词： Optical communications Optical burst switching(OBS) Contention resolution Burst segmentation Deflection routing Quality of Service(QoS)

Research on Grey Incidence Decision-Making with Uncertainty

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Research on Grey Incidence Decision-Making with Uncertainty

第十五届工业工程与工程管理国际会议

作者： Lv Jian~1 Luo Dixin~2 Luo Dang~1 1 college of Mathematic and information Sciences North china university of Water Conservancy and Hydroelectric Power zhengzhou P.R.china 450011 2 Department of Electronic engineering Shanghai Jiaotong university Shaihai P.R.china 200240

＜正＞This paper deals with the grey incidence decision-making with uncertainty on the basis of grey system and maximum entropy *** incidence degree coefficient formula for grey interval has been put *** extends classical grey incidence decision-making to the case of interval grey number,and establishes an algorithm for condition of inadequacy of objective weight and preferential information of *** proposed algorithm enables a flexible decision-making method with practical *** example discussed in the paper shows the rationality,practicability and validity of the proposed algorithm.

关键词： Grey System Interval Grey Number Grey Incidence Degree Entropy Decision-Making

GF(p)上ECC的有效实现———MCS51微处理器系列

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计算机工程与应用 2003年第32期39卷 127-129,134页

作者：况百杰祝跃飞赵涛王春迎解放军信息工程大学信息工程学院网络工程系郑州450002

文章详细描述了在192-bit素域上椭圆曲线公钥密码体制ECC(EllipticCurvepublickeyCryptography)在IntelMCS51微处理器系列智能卡上的实现过程。采用了Generalized-Mersenne素数作基域GF(p)(p=2192-264-1),利用模数的特殊形式及椭圆曲线的特殊参数,实现了GF(p)上ECC的全部过程,并且建立了软件库。运行速度表明ECC在计算资源受限、低功耗微处理器上实现是可行的。

关键词：有限域椭圆曲线公钥密码体制标量乘法 MCS51

一种精确的压电双晶片参数动态测试模型和方法

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计量学报 2002年第3期23卷 211-215页

作者：叶会英禹延光浦昭邦郑州大学信息工程学院郑州450052 哈尔滨工业大学自动化测试与控制系哈尔滨150001

本文根据悬臂梁式压电双晶片的动态导纳矩阵 ,设计了一种器件参数动态测试模型 ,用于测量压电双晶片的几个主要参数 :压电常数d31 、机电耦合系数k31 、介电常数εT33、弹性顺度常数sE1 1 和等效电容等。文中详细叙述了测试模型的建立... 详细信息

本文根据悬臂梁式压电双晶片的动态导纳矩阵 ,设计了一种器件参数动态测试模型 ,用于测量压电双晶片的几个主要参数 :压电常数d31 、机电耦合系数k31 、介电常数εT33、弹性顺度常数sE1 1 和等效电容等。文中详细叙述了测试模型的建立和测试步骤 ,并提供了一种实际试样的测试结果。理论与实验表明 ,这种新的动态测试方法是精确。

关键词：压电双晶片压电参数动态测试模型测试精度压电元件

A Model Reference Adaptive Variable Structure Controller for Discrete System with Time-Delay

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A Model Reference Adaptive Variable Structure Controller for...

2009中国控制与决策会议

作者： Zhang Rong~1,Zhou De-wen~(2,3),Gao Cun-chen~2 1.Department of Mathematics and Physics,Luoyang Institute of Science and Technology,Luoyang.471023,china 2.college of information Science and engineering,Ocean university of china,Qingdao 266100 3.Department of Mathematics,zhengzhou university,zhengzhou,450052,china

＜正＞In this note,the original discrete uncertain system with time-delay is simplified to a discrete uncertain system without time-delay and a switching function is designed to guarantee that the movement of the system is asymptotically stable in the switching *** a discrete robust adaptive quasi-sliding-mode tracking controller is presented by the two given adaptive gains,and the globally asymptotically stability of the system is proved based on the Lyapunov stability ***,an example and its simulation results are presented to illustrate the proposed approach.

关键词： Adaptive Control Discrete Control System Uncertain System Quasi-sliding Mode Belt

Application of ID3 Algorithm in information Asset Identification

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Application of ID3 Algorithm in Information Asset Identifica...

2012 National Conference on information Technology and Computer Science

作者： Hua Yong Department of Foundation,the First Aeronautical college of Air Force,Xinyang,Henan,464000,china Zhang Yunlong Electronic information engineering college,Sias International university,zhengzhou university,Xinzheng,Henan,451150,china

In the issue of information security risk evaluation,the asset,the threat and the vulnerability are the three most important *** asset identification is a primary link of information security risk evaluation *** this paper,the decision tree algorithm was applied into the identification of information assets;the basic process of ID3 algorithm are described;the data of information system property is classified by ID3 algorithm;the decision tree was made;and the rules are extracted for providing basis of information asset recognition.

关键词： information Security decision tree ID3 algorithm