一种遥控潜水器控制系统的研究与应用

介绍一种基于工业以太网通信技术及Windows平台构建的遥控潜水器控制系统.将该控制系统应用于最新研制的遥控潜水器中,其在通信能力、视频传输、控制性能、硬件的可扩展性、数据的存储与显示等多方面都比传统的控制系统具有明显的优势.在水池中进行了试验,验证了该控制系统及整个潜水器良好的运动功能和性能.

基于C/S模式的多水下机器人仿真平台网络通信研究

文章研究了基于客户端/服务器(C/S)模式的多水下机器人仿真平台中网络通信的关键技术。文章介绍了该仿真平台的结构和功能,分析了仿真平台的信息流向和通信特点,在此基础上,提出了适合该仿真平台应用的网络通信协议和时钟同步方案,并详细讨论了Windows和QNX两种不同操作系统上的应用程序之间进行网络通信的实现方法。

工业控制设备前端信息集成管理的研究与实现

本文讨论了在连续过程生产中ＣＩＭＳ的应用之一，工业控制设备前端信息集成管理的基本思想，提出了统一格式的操作平台为目的设备前端服务器的框架结构，并在此基础上设计和实现了一个应用于八·五攻关项目应用工厂的设备前端服务器（ＭａｃｈｉｎｅＦｒｏｎｔＥｎｄＳｅｒｖｅｒ简称ＭＦＥ），阐述了该系统的基本结构及开发策略。

图像图形文字混合处理系统PANDA的设计与实现

本文描述了图像、图形、文字混合处理系统PANDA的设计与实现技术。详细讨论了PANDA系统的数据结构组织方法,其中包括多文件、多窗口处理的结构设计以及动态的数据结构设计,同时给出了PANDA系统在其实现过程中所使用的一些关键处理技术。

激光拼焊焊缝质量在线检测技术研究

激光拼焊作为一种新的高质量焊接技术，已经广泛应用于汽车，航空、造船等领域，对提高我国装备制造水平有重要意义。激光拼焊过程中由于焊接装置与焊接工艺的一些时变因素，导致焊接质量存在一定波动，因此，必须对焊缝进行在线实时质量检测，这不仅可以保证焊接质量，而且有助于实现焊接的自动化。目前，国外成熟的激光拼焊系统中，焊缝质量实时检测技术已经成为实现激光拼焊自动化的关键部分。但该项技术国内目前仍处于研究阶段。因此，研制应用于激光拼焊的焊缝质量实时检测系统，实现焊接过程的自动化在学术理论性及工程应用性上具有重要研究意义。本文以激光拼焊为背景，针对激光焊接焊缝质量检测中存在的科学问题和实际应用需求，参考了国外先进的焊缝质量检测系统，应用机器视觉原理对焊缝质量检测方法进行了研究。 本文首先介绍了基于结构光视觉检测原理建立的焊缝质量检测系统。其次重点研究了焊缝质量检测系统的图像处理算法。图像处理算法是整个检测系统的核心内容，其处理的速度与精度直接影响到系统的实时性与准确性。本文依据ISO13919-1 B级焊缝质量标准设计了基于结构光的焊缝图像处理算法。算法主要分三步：首先准确提取结构光光纹中心线，其次提取光纹中心线特征点，最后，根据光纹的几何形状以及所提取的特征点，计算焊缝缺陷参数。第二部分系统介绍了结构光视觉传感器的标定原理及方法，针对激光拼焊焊缝质量检测应用需求，研究了焊缝质量检测视觉传感器直接标定方法。并设计了标定方法的具体实现，通过在局部区域建立光平面到像平面之间的线性函数关系，像平面中的任意一个像点对应的物理坐标，可以通过线性插值算出。实验结果表明，标定精度可以满足激光拼焊质量检测系统的精度要求，且便于工程实现。第三部分针对激光拼焊质量检测需求，进行了焊缝质量检测系统的软、硬件设计及实现。重点研究了软件实现中的一些关键问题，如Windows实现检测系统的方法，进程、线程的优先级，三维重建等。最后在该检测系统实验平台上进行了图像处理算法的精度与速度的验证，实验结果表明图像算法结果满足系统要求。最后，本文对所做的研究工作进行了总结，并对今后的工作进行了展望。

基于窗口精细结构描述的岩体质量评价及力学参数综合优选

This thesis bases on horizontal research project “The research about the fine structure and mechanical parameters of abutment jointed rock mass of high arch dam on Jinping Ⅰ Hydropower Station, Yalong River” and “The research about the fine structure and mechanical parameters of the columnar basalt rock mass on Baihetan Hydropower Station, Jinsha River”. A rounded system about the fine structure description and rock mass classification is established. This research mainly contains six aspects as follow: (1) Methods about fine structure description of the window rock mass; (2) The window rock mass classification about the fine structure; (3) Model test study of intermittent joints; (4) Window rock mass strength theory; (5) Numerical experimentations about window rock mass; (6) The multi-source fusion of mechanical parameters based on Bayes principle. Variation of intact rock strength and joint conditions with the weathering and relaxation degree is studied through the description of window rock mass. And four principal parameters: intact rock point load strength, integration degree of window rock mass, joint conditions, and groundwater condition is selected to assess the window rock mass. Window rock mass is classified into three types using the results of window rock mass fine structure description combined with joints develop model. Scores about intact rock strength, integrality condition, divisional plane condition and groundwater conditions are given based on window rock mass fine structure description. Then quality evaluation about two different types of rock mass: general joint structure and columnar jointing structure are carried out to use this window rock mass classification system. Application results show that the window rock mass classification system is effective and applicable. Aimed at structural features of window structure of “the rock mass damaged by recessive fracture”, model tests and numerical models are designed about intermittent joints. By conducting model tests we get shear strength under different normal stress in integrated samples, through samples and intermittent joints samples. Also, the changing trends of shear strength in various connectivity rates are analyzed. We numerically simulate the entire process of direct shear tests by using PFC2D. In order to tally the stress-strain curve of numerical simulation with experimental tests about both integrated samples and through samples, we adjust mechanical factors between particles. Through adopting the same particle geometric parameter, the numerical sample of intermittent joints in different connective condition is re-built. At the same time, we endow the rock bridges and joints in testing samples with the fixed particle contacting parameters, and conduct a series of direct shear tests. Then the destructive process and mechanical parameters in both micro-prospective and macro-prospective are obtained. By synthesizing the results of numerical and sample tests and analyzing the evolutionary changes of stress and strain on intermittent joints plane, we conclude that the centralization of compressive stress on rock bridges increase the shear strength of it. We discuss the destructive mechanics of intermittent joints rock under direct shear condition, meanwhile, divide the whole shear process into five phases, which are elasticity phase, fracture initiation phase, peak value phase, after-peak phase and residual phase. In development of strength theory, the shear strength mechanisms of joint and rock bridge are analyzed respectively. In order to apply the deducted formulation conveniently in the real projects, a relationship between these formulations and Mohr-Coulomb hypothesis is built up. Some sets of numerical simulation methods, i.e. the distinct element method (UDEC) based on in-situ geology mapping are developed and introduced. The working methods about determining mechanical parameters of intact rock and joints in numerical model are studied. The operation process and analysis results are demonstrated detailed from the research on parameters of rock mass based on numerical test in the Jinping Ⅰ Hydropower Station and Baihetan Hydropower Station. By comparison，the advantages and disadvantages are discussed. Results about numerical simulation study show that we can get the shear strength mechanical parameters by changing the load conditions. The multi-source rock mass mechanical parameters can be fused by the Bayes theory, which are test value, empirical value and theoretical value. Then the value range and its confidence probability of different rock mass grade are induced and these data supports the reliability design.

波动方程模拟与偏移的实用化方法研究

Along with the widespread and in-depth applications in petroleum prospecting and development, the seismic modeling and migration technologies are proposed with a higher requirement by oil industrial, and the related practical demand is getting more and more urgent. Based on theories of modeling and migration methods for wave equation, both related with velocity model, I thoroughly research and develop some methods for the goal of highly effective and practical in this dissertation. In the first part, this dissertation probes into the layout designing by wave equations modeling, focusing on the target-oriented layout designing method guided by wave equation modeling in complicated structure areas. It is implemented by using the fourth order staggered grid finite difference (FD) method in velocity-stress 2D acoustic wave equations plus perfectly matched layer (PML) absorbing boundary condition. To design target-oriented layout: (a) match the synthetic record on the surface with events of subsurface structures by analyzing the snapshots of theoretical model; (b) determine the shot-gather distance by tracking the events of target areas and measuring the receiving range when it reaches the surface; (c) restrict the range of valid shot-gather distance by drawing seismic windows in single shot records; (d) choose the best trace distance by comparing the resolution of prospecting targets from the simulated records with different trace distance. Eventually, we obtained the observation system parameters, which achieve the design requirements. In the second part, this dissertation presents the practical method to improve the 3D Fourier Finite Difference (FFD) migration, and carefully analyzes all the factors which influence 3D FFD migration’s efficiency. In which, one of the most important parameters of migration is the extrapolating step. This dissertation presents an efficient 3D FFD migration algorithm, which use FFD propagator to extrapolate wavefields over big layers, and use Born-Kirchhoff interpolator to image wavefields over small layers between the big ones. Finally, I show the effectiveness of this hybrid migration method by comparing migration results from 3D SEG/EAGE model with different methods.

河流-三角洲储层自动对比微相自动识别原理方法和软件系统

Because of the complexity and particularity, especially the result is more depend on the expert' s experience, the calculate method which is based on the simplicity mathematical model can hardly have any effective role in the oilfield .The coalescent method of artificial intelligence and signal manage in the correlation of reservoir use log curve has been put forward.in this paper. Following the principle of "controlled by classification and correlation by deposit gyration ". The system of correlation has been setup, which can identify "standard layer" first by the improved method of gray connection system, and then on the basis of identified "standard layer", interpret the fault, and last identify the layer in the reservoir. A effective method of "the consistent character of a reservoir "has been adopt to solved the puzzle of interpret the fault. On the basis of sedimentary theory and the quantity analysis of log curve shape of different type microfacies, a serial of different type micofacies' s models has been build that use eight optimized parameters, five of eight rationed parameters being used to describe microfacies with log curve, the distribution area of every parameters for the microfacies has been give. Because the classical math can only be used in the areas that principles are very clearly, not be fit for the description of geology character, so The fuzzy math integrate judgment has been adopt in the using log curve to determine microfacies; the accordance ration is 85 percent. A set of software has been programmed which is on the system of Windows. the software has the integration function of data process, auto-contrast reservoir layer, determination of microfacies using log curve, character the connectivity of sandstones and plotting of geology map. Through the application, this system has high precision and has become a useful tool in the study of geology.

铜石金矿田金元素来源新认识

铜石金矿田位于鲁西中生代富碱次火山杂岩体-铜石岩体周围,该岩体侵入于燕山晚期,主要有闪长玢岩、二长斑岩和隐爆角砾岩组成。岩体与金矿田有密切的成因关系,目前一般认为铜石金矿田金元素来源于泰山群地层,岩体与金矿是衍生关系而非同源关系。但文章通过对铜石金矿田地质特征、流体包裹体成分、氢氧同位素证据、锶、氧和铅同位素比值、碲元素地球化学特征以及国内外成矿地质条件相似地区研究成果分析得出新的观点:铜石金矿田金元素来源于深部碱性玄武岩浆,矿体与岩体是同源而非衍生关系。该新认识对鲁西黄金找矿具有一定参考价值。

空难发生地高中生焦虑性心理应激的影响因素

目的：探究空难发生地不同人格特征和不同职业期望值高中生在空难发生后心理应激的差异。方法：采用《艾森克人格问卷（EPQ）成人式》、《空难发生地高中生心理应激问卷I》、《空难发生地高中生心理应激问卷II》和自编的《职业期望问卷》,分别在空难发生后一周内对非空难发生地（呼和浩特）某重点中学396名高中生、空难发生地（包头）某重点中学390名高中生和空难发生一年后包头387名高中生进行问卷调查。全部数据使用SPSS11.5 for Windows进行统计、分析处理。结果：在空难发生后一周内，两地高中生焦虑性心理应激水平有显著性差异，P<0.05，而人格特征和职业期望值没有显著性差异。空难发生地重点班学生与非重点班学生焦虑性心理应激水平有显著性差异，P<0.05；焦虑性心理应激水平与神经质分数和职业期望值呈正相关，相关系数分别为:r=0.42和r=0.37, P<0.01和P<0.05。而在空难发生一年后空难发生地重点班学生与非重点班学生的焦虑性心理应激水平没有显著性差异,P>0.05；重点班学生与非重点班学生的职业期望值有显著性差异,P<0.05；空难发生一年后重点班学生的心理应激水平与神经质分数和职业期望值均呈零相关。结论：职业期望和神经质是空难发生地高中生焦虑性心理应激水平的影响因素。对于空难发生地重点班特别是高神经质和高职业期望值的学生在空难发生后，应及时给予心理干预，使其尽快从负面情绪中摆脱出来，以免其学习和生活受到影响。

A Theory of Networks for Appxoimation and Learning

Learning an input-output mapping from a set of examples, of the type that many neural networks have been constructed to perform, can be regarded as synthesizing an approximation of a multi-dimensional function, that is solving the problem of hypersurface reconstruction. From this point of view, this form of learning is closely related to classical approximation techniques, such as generalized splines and regularization theory. This paper considers the problems of an exact representation and, in more detail, of the approximation of linear and nolinear mappings in terms of simpler functions of fewer variables. Kolmogorov's theorem concerning the representation of functions of several variables in terms of functions of one variable turns out to be almost irrelevant in the context of networks for learning. We develop a theoretical framework for approximation based on regularization techniques that leads to a class of three-layer networks that we call Generalized Radial Basis Functions (GRBF), since they are mathematically related to the well-known Radial Basis Functions, mainly used for strict interpolation tasks. GRBF networks are not only equivalent to generalized splines, but are also closely related to pattern recognition methods such as Parzen windows and potential functions and to several neural network algorithms, such as Kanerva's associative memory, backpropagation and Kohonen's topology preserving map. They also have an interesting interpretation in terms of prototypes that are synthesized and optimally combined during the learning stage. The paper introduces several extensions and applications of the technique and discusses intriguing analogies with neurobiological data.

Desenvolvimento de ferramenta computacional para estudo de variabilidade espacial e temporal por meio de geoestatística: uma proposta.

Este trabalho visa o desenvolvimento de um sistema computacional que implemente os conceitos geoestatísticos para estudo de viabilidade temporal e espacial, de maneira amigável, rápida e consistente, em ambiente Windows e integrado à Web.

AINFO - versão 5.0: manual on-line.

O AINFO é um sistema para automação de bibliotecas e recuperação de informação, desenvolvimento em padrão Windows, com arquitetura cliente/servidor baseada no sistema gerenciador de banco de dados relacional Firebird. Pemite o gerenciamento de informação técnico-científica, integrando bases de dados documentais, cadastrais e processos bibliográficos através do armazenamento, atualização, indexação e recuperação de informação de forma simples e rápida, utilizando não apenas recursos de um istema gerenciador de banco de dados, como controle de concorrência e manutenção de integridade das bases de dados, mas também oferecendo facilidades de recuperação de informação textual não disponíveis nesses sistemas.

Tutorial do comando Awk.

Mesmo que o Windows ainda seja, disparado, o sistema operacional mais utilizado e conhecido pelas pessoas no mundo todo, o Linux vem se difundindo cada vez mais em diversos nichos da população, sejam profissionais de informática ou não. Uma das grandes vantagens do Linux sobre seu concorrente é a diversidade de comandos que seu terminal shell (interface de linha de comando) possui, o que se tornou uma característica forte deste sistema operacional. O awk é um desses comandos que faz o terminal shell do Linux ser a marca forte desse sistema. É um comando tão importante e com tantas funcionalidades que muitos o confundem com uma linguagem de programação. O presente trabalho procura fazer uma pequena introdução sobre as principais possibilidades de utilização do awk, desde a construção de simples linhas de comando até a programação de pequenos scripts para execução no shell do Linux.