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The layout of body measurement paths and apartness of point cloud data are attempted for new study.

探讨了扫描线和散乱点云数据的预处理技术,对点云数据自动滤波和交互滤波技术,随机采样和网格化数据精简进行了研究,总结出具有实效性的预处理方法。

To the disadvantage exposed to us in national and foreign VTS system, and those putted up in application projects, the thesis did a farther study and consummation, and acquired some research fruits, as follows:1. Fulfilled the Eagle Eye function in Electronic Chart Display System.2. Designed a kind of simple algorithm for select chart. By this arithmetic it become true to auto select electronic chart when chart is zoomed.3. The realization of auto acquired field on electronic chart.4. The simulation of target data and error of radar and AIS by software.5. The fusion processing of the dynamic data those are collected from AIS and Radar.6. Resolve the target track problem of radar by the data fusion technology.7. The algorithm design of display field reduce, this function can improve the speed of display.

针对目前国内外VTS系统中暴露出的薄弱点,以及应用实践中表现出的不足本文对综合信息处理与显示系统做了进一步的研究和完善,取得了以下的研究成果: 1、电子海图显示系统中鹰眼图的功能设置与实现; 2、设计一种简易的选图算法,通过该算法实现可在海图放大、缩小时的自动选图; 3、电子海图上自动录取区的实现; 4、实现对雷达和AIS目标数据及其误差的软件仿真; 5、船舶自动识别系统中动态信息与雷达动态信息的数据融合处理; 6、利用数据融合技术解决雷达目标跟踪方面的问题; 7、海图空间信息中显示区域裁减算法的设计,该模块的实现大幅度提高了海图的显示速度。

In automatic acquisition and procession of the photoelastic data, there are some troubles about how to acquire single isoclinics and to improve the precision of evaluating isochromatic fringe orders in the thin slice of the three-dimension model when the actual problems are solved by photoelasticity.

中文题名彩色域数字光弹性中数据采集技术的应用研究副题名外文题名 Data acquisition techniques in color-field digital photoelasticity 论文作者雷振坤导师云大真学科专业固体力学研究领域\研究方向学位级别博士学位授予单位大连理工大学学位授予日期2002 论文页码总数168页关键词光弹性法图像处理数据采集彩色图像处理数字光弹性馆藏号BSLW /2003 /O348 /5 用光弹性实验处理实际问题时,在数据自动采集与处理中,如何获得单纯等倾线的问题仍是一大难点,此外就是如何进一步提高三维冻结模型薄切片的等色线定级精度问题也比较困难。

The innovation and the breakthrough point of the system research chiefly shows in: finding out the effective forecasting technique of formation, oil and gas water bed and formation pressure , internal/external sharing of data, automatic examination of related data, automatic drawing of three kinds of graph, automatic showing the well position on the structure well position map according to the designed coordinate of well,pretreatment technology of design, generating of design book, mixed arrangement of graph and text, transmission and examination of design book on net, computer management of design book and data, on net query, data compressing technology, etc.

系统研究的创新和突破点主要表现在:总结出一套行之有效的钻遇地层、油气水位置预测方法和根据邻井综合录井资料预测地层压力方法,开发了系统数据内外部共享和相关数据的自动校验、三种图件的自动绘制和在构造井位图上根据设计井座标自动展井位、设计预处理、设计书的生成和图文混排、设计书网上传输和网上审批、设计书和数据的计算机管理和网上查询、大数据压缩等技术。

The design of a nonmental ultrasonic detector was introduced. The detector was based on EP2C20 series FPGA chip,through adding NiosII soft processor and other interfaces to FPGA ,equipped with high precision data collection system and TFT LCD module and so on.The system was constituted.It including ultrasonic eradiating,receive sychronously,audio parameter detecting automatically,data analyse and process,display result timely,data storage and data output circuits.For the developing of imaging,intelligent and automation of ultrasonictesting ,a very good foundation is established by the system.

介绍了非金属超声检测仪的软硬件设计方法该仪器以EP2C20系列FPGA芯片为核心,通过在FPGA中加载NiosII软核处理器和其他外围接口电路,配合高精度数据采集系统TFT液晶显示模块等设计而成该仪器集超声波发射同步接收声参量自动检测数据分析处理结果实时显示数据存储与输出等功能于一身,为数据的进一步分析处理和实现超声检测的图像化智能化自动化奠定了良好的基础

Summary: PowerDesiger is " one station type " Modeling and solution designed, Offer ocular symbol for all kinds of data models say , is it manage and visit effective structure , project of information to offer to user, the integrated characteristic is flexible, is that the most popular software analyses the design tools at present, Its characteristic:(1)Modeling solution of complete integration of providing a whole set of for network analysis and designing for all IT users;(2)Modeling of the data;(3)The strong document blocks and customizes and produces the function automatically;(4)User totally self-defining yuans of mould plate;(5)Take result as the direction , regard data as the business treatment models of the centre;(6)Have offered it to all UML pictures and omni-directional support in all main platforms;(7)Have offered many kinds of modeling technology in the single environment based on resources bank;(8)Have offered the performance in common use for models and targets , expand attribute and script to deal with;(9)Incorporate the intact edition and control the function.

摘 要:PowerDesiger是"一站式"建模与设计的解决方案,为各类数据模型提供了直观的符号表示,向用户提供管理和访问项目信息的有效结构,集成特性灵活,是目前最为流行的软件分析设计工具之一,其特点:(1)为所有IT用户提供了一整套用于系统分析和设计的完全集成的建模解决方案;(2)数据建模;(3)强大的文挡定制自动生成功能;(4)用户可完全自定义的元模型板;(5)以结果为导向、以数据为中心的业务处理模型;(6)提供了对所有UML图及所有主要平台的全方位支持;(7)在基于资源库的单一环境中提供了多种建模技术;(8)为所有模型和对象提供了通用性能、扩展属性和脚本处理;(9)融入完整的版本控制功能。

The title and bill of material in engineering drawings are important data source for product data integrated management. In order to reuse the CAD data, the paper presents an effective method for extracting part information from existing engineering drawings. Through analyzing the format of title and bill of material, several shape-position characteristics of tables are summed up from the view of macro-layout and microstructure. A new method to automatically extracting drawing information based on cell-grid and feature-point is proposed along with its algorithm principle and implementation steps. A software package based on the method mentioned above is developed and used in practice.

1引言工程图是工程设计的主要成果和制造加工的主要依据,CAD软件的广泛应用使得传统上对于纸质图纸的管理模式转变为对大量电子文件的管理模式·由于文件系统在实际应用中不能适应复杂大规模的管理模式,已经出现了各种各样的图档管理系统[1]·工程图中包含的零件信息在表现形式上体现纸格式的标准化为批量提取数据提供了可能性·作为计算机处理的对象,图纸信息自动识别成为数据管理和系统集成的一项关键技术·当前CAD管理系统所处理的数据对象比较复杂,面临由不同企业使用不同的绘图软件生成的图纸,其中的标题栏和明细栏或者由软件自动生

In view of these shortcomings this frequency meter has made the radical innovation in the design its merit is: Uses the core component is the advanced monolithic special-purpose frequency measurement component -- monolithic frequency meter the integration rate is high the volume is small consumes the electricity province function has realized the frequency meter high integration and the microminiaturization; So long as the monolithic frequency meter adds on the crystal oscillator the measuring range choice the frequency demonstrated and so on the very few components then constitute DC to the 10MHz miniature basic frequency measurement electric circuit; But the biggest merit was this frequency meter has realized monolithic frequency meter frequency sampling electric circuit and the monolithic microcomputer three between hardware and the software connection completely caused the frequency measurement measuring range the choice the frequency data survey the sampling as well as the code frontier transformation and the data dump possible monolithic microcomputer software programming automatically to carry on thus has realized the frequency measurement and the sampling work intellectualizes completely causes this system already to be possible to constitute a miniature intelligence to measure rate the instrument core electric circuit independently also might take in the large-scale automatic control or a test system intelligent subsystem.

摘要传统的测频仪器体积很大,耗能量大,主要靠手工操作,而最大的缺点是不可编程,其量程转换、数据测量、采样控制和处理等均不能通过程序指令来进行控制,无法作为一个微型智能子系统与某一大型自动控制或测试系统进行接口。针对这些缺点,本频率计再设计上作了根本的革新,其优点是:所用核心器件是先进的单片专用测频器件——单片频率计,集成度高,体积小,耗电省,功能强,实现了频率计的高度集成化和微型化;单片频率计只要加上晶振、量程选择、频率显示等很晌慰的器件即可构成一个DC至10MHz的微型基本测频电路;而最大的优点则是本频率计完全实现了单片频率计、频率采样与单片微机三者之间的硬件与软件接口,使得测频量程的选择、频率数据的测量、采样以及编码的边境转换和数据的转储均可能过单片微机的软件编程自动进行,从而实现了测频与采样工作的完全智能化,使得本系统既可独立构成一个微型智能测率仪器的核心电路,也可作为大型自动控制或测试系统中的一个智能子系统。关键词高度集成化,单片机,频率计,电路

Ultimately control strategy of PWM automatic aiming System present as follows: A、By mading the most of powerful data processing capability of computer to builtup subsection correction parameter list about angle of pitching , angle of revolution and PD correction parameter .systom can be calibrated dynamically.

最终得出PWM火炮自动瞄准系统的控制策略如下: A、充分利用计算机强大的数据处理能力,建立俯仰角度、回转角位移和PD校正参数之间的分段校正参数表,由计算机对系统进行动态校正。

At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.

本文在广泛的、深入研究的基础上,应用多种信号处理手段来分析处理数据,同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨,本文进行了以下几项工作:(1)提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略;(2)提出了基于WVD分布的连续撞击响应信号的分离策略;(3)提出了基于对数谱拟合方法的钢—钢撞击响应求解模型;(4)提出了基于波形分析的非正常燃烧振动信号的诊断模型;(5)提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型;(6)提出了基于小波近似的喷油正时信号中燃烧位置的自动定位;(7)提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略;(8)提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。