AUTOCAD软件二次开发Hatch命令的实现——基于ObjectArx的开发

AutoCad2002及其后续版本的ObjectArx二次开发是面向对象程序发展的结果,在机械、建筑等领域有着广泛的应用,有巨大的市场需求。AutoCad命令的开发是二次开发中的一项重要内容。本文论述了hatch命令二次开发的设计过程和实现技术要点。     

采煤机关键零件参数化建模与分析系统

为提高采煤机关键零件建模与有限元分析效率,降低对用户软件操作水平的要求,在Visual Studio 2012集成编译环境下,利用NX二次开发工具开发了采煤机关键零件参数化建模与分析系统。该系统将用户输入参数和应用程序中接口函数相关联,以尺寸驱动的方法,通过修改参数表达式,实现采煤机关键零件参数化建模;借助Journal日志工具,通过获取NX NASTRAN接口函数实现参数化有限元分析。实例验证了该系统的有效性。     

利用AutoCAD与MATLAB进行机器人仿真系统的开发

该文论述了在微机上开发的一个机器人仿真系统。系统选用AutoCAD二次开发工具之一——VBA语言进行编程。应用了ActiveX技术，提出了在开发机器人仿真系统中，将MATLAB语言的矩阵运算功能与AutoCAD的图形功能相互结合来补充其不足的新方法，并利用实例进行了验证。     

AUTOCAD软件二次开发Hatch命令的实现——基于ObjectArx的开发

AutoCad2002及其后续版本的ObjectArx二次开发是面向对象程序发展的结果，在机械、建筑等领域有着广泛的应用．有巨大的市场需求。AutoCad命令的开发是二次开发中的一项重要内容。本文论述了hatch命令二次开发的设计过程和实现技术要点。     

基于Web的采掘运装备零部件参数化设计系统

为了实现在网页中快速、方便地对采掘运装备零部件的参数化设计,综合利用ANSYS二次开发技术和网页设计开发技术,开发了基于Web的采掘运装备零部件参数化设计系统,介绍了系统总体设计及关键技术。该系统将用户在网页中输入的零部件参数与零部件建模APDL命令流相结合,通过远程调用ANSYS软件对采掘运装备零部件进行参数化设计,降低了对设计人员的专业要求,提高了设计效率。     

ARINC659命令表配置工具设计与实现

ARINC659总线是主要用于机架内部各个在线可更换模块之间的通信,在综合模块化航空电子系统中有着广泛的应用。采用表驱动访问的ARINC659总线系统开发中需要开发总线操作调度表,一种基于ARINC659规范的命令表白动生成与编译工具可解决ARINC659产品使用中的命令表设计的问题,加速产品的应用于推广。文中介绍了ARINC659总线的工作的基本原理,设计实现了基于ARINC659总线命令表配置工具,完成了命令表的生成、编译与仿真,是一种比较好的ARINC659总线命令表的解决方案。     

ARINC 659命令表配置工具设计与实现

ARINC 659总线是主要用于机架内部各个在线可更换模块之间的通信,在综合模块化航空电子系统中有着广泛的应用.采用表驱动访问的 ARINC 659总线系统开发中需要开发总线操作调度表,一种基于 ARINC 659规范的命令表自动生成与编译工具可解决 ARINC 659产品使用中的命令表设计的问题,加速产品的应用于推广.文中介绍了 ARINC 659总线的工作的基本原理,设计实现了基于 ARINC 659总线命令表配置工具,完成了命令表的生成、编译与仿真,是一种比较好的 ARINC 659总线命令表的解决方案.     

交叉开发环境中的目标机代理设计

当进行嵌入式应用开发时，需要利用宿主机开发环境中的多种工具，例如交叉编译器、远程调试器、命令解析器和实时资源浏览器。不同的主机端工具需要支持主机-目标机通信，并会产生许多不一致性，使得目标系统的设计变得相当复杂。该文提出了一种实现主机端工具与目标系统交互的通信机制，在自主嵌入式实时操作系统ReWorks中，设计开发了一个目标机代理。     

Ltiview工具在MIMO系统分析中的应用

针对将MATLAB应用于MIMO系统的分析需记忆大量的命令，提出了利用ltiview工具进行MIMO系统分析的方法。在MATLAB命令窗口建立系统的模型，不需任何编程和复杂的计算，不需任何编程和计算，用ltiview工具就可以十分方便地、直观地分析MIMO系统。     

PowerBuilder与MapInfo结合进行地理信息系统(GIS)二次开发

主要探讨了在基于MapInfod的二次开发应用系统中,采用OLE自动化以及与客户/服务器开发工具PowerBuilder系统集成开发的基本方法和集成开发中的一些关键技术的实现方法。     

Command-induced vibration analysis using input shaping principles

Input shaping is a well-established technique used for reducing the vibratory response of dynamic systems. Analytical tools are available for systems utilizing input shaping. These tools aid in performance analysis by providing intuitive and computationally simple methods for determining key system attributes, such as the residual vibration in response to a command. This paper describes methods whereby arbitrary reference commands may be interpreted as input-shaped commands. This capability allows input shaping analysis tools to be used on systems without input shapers. Experimental results obtained from an industrial 10-ton bridge crane validate the theoretical developments.     

TMS320C6x DSP的软件开发和程序调试方法

主要介绍了ＴＭＳ３２０Ｃ６ｘ的软件开发的过程和程序调试方法,概括说明ＴＭＳ３２０Ｃ６ｘ调试器的基本功能和使用方法,对主要调试命令和不容易掌握的命令做了重点说明,并指出程序调试中应该注意的一些问题。熟练掌握调试开发工具对于加快ＤＳＰ产品的开发速度是十分重要的。     

铁路运输仿真控制系统的设计与实现

为方便铁路企业调度人员实现铁路行车的模拟仿真,开发了铁路运输仿真控制系统;为了便于升级与维护,仿真控制系统硬件电路均采用模块化设计,并基于串口技术实现了控制系统主机与上位机、主机与从机之间数据通讯,提供了二次开发接口;针对调度中信号灯和道岔控制指令繁琐复杂的特征,提出了模拟仿真控制算法;系统功能测试结果表明,该系统操作方便,运行可靠,能够实时模拟各种条件下的行车调度,仿真程度高。     

通用GUI及其在性能评测开发中的应用

在计算机性能评测领域, 评测工具日趋复杂和多样, 不同的评测工具具有不同的界面和操作方式, 测试人员不得不面对多种界面和操作方式, 增加了其学习压力和使用的阻力。另一方面由于评测工具的开发语言和操作环境的不同, 开发新的性能评测工具时不能充分利用已有的功能模块。介绍了一种能够在不同性能评测工具中重复使用、并且具有统一的操作界面的通用GUI, 并介绍了其原理、关键的技术和在性能评测中的应用。     

Distributed fault detection in industrial system based on sensor wireless network

In metal cutting processes, an effective monitoring system, based on a suitably developed scheme or set of algorithms can maintain machine tools in good condition and delay the occurrence of tool wear. In this paper, an approach is developed for fault detection based on a distributed system. Firstly, identifying of sensor instrumentation system is responsible for the signal processing and the system fault information. Secondly, the sensor wireless networks are used to transmit the data (lower layer) to or receive the commands from the computer center (top layer). Thirdly, the computer center at the top layer will monitor the overall system and generate the alarm signals or the commands when the faults occur.     

Using the BACC Software for Bayesian Inference

The BACC software provides its users with tools for Bayesian Analysis,Computation and Communications. The current version of the software, describedhere, implements these tools as extensions to popular mathematicalapplications such as Matlab, S-PLUS, R, and Gauss, running under Windows,Linux or Unix. From the user's perspective, there is a seamless integrationof special-purpose BACC commands for posterior simulation and related taskswith powerful built-in commands for matrix computation, graphics, program flowcontrol, and I/O. Examples demonstrate the use of the software within Matlab.Nineteen models are currently available, and many others are planned. BACC isdesigned to be extendible, not only by the developers of BACC, but also byothers who wish to implement their own models and thus make them available toBACC users. While model development requires programming in C, several designfeatures of BACC facilitate this development. BACC is freely available athttp://www2.cirano.qc.ca/bacc/.     

SCDDWS中的数据操纵以及查询优化

研究和开发概念设计的CAD工具已经成为当今的热点,由于概念设计是一个不断决策的过程,而数据仓库和OLAP(OnLineAnalyticalProcessing)技术是开发决策支持系统的重要技术,因而笔者建立了一个数据仓库系统用以辅助概念设计决策,称该数据仓库系统为SCDDWS。文章首先介绍该仓库系统中所提供的数据操作命令。其中,除已有的5种OLAP典型操作外,又提出了两个新的数据操作命令,使得用户能够方便和高效地获得所需的数据。然后介绍一种改进的优化算法,它用来建立和保存一些多维联合的链接以便得到较高的查询效率。     

Flexible system for simulating and tele‐operating robots through the internet

Simulation and teleoperation tools offer many advantages for the training or learning of technological subjects, such as flexibility in time‐tables and student access to expensive and limited equipment. In this paper, we present a new system for simulating and tele‐operating robot arms through the Internet, which allows many users to simulate and test positioning commands for a robot by means of a virtual environment, as well as execute the validated commands in a real remote robot of the same characteristics. The main feature of the system is its flexibility in managing different robots or including new robot models and equipment. © 2005 Wiley Periodicals, Inc.     

Artificial intelligence and the evidentiary process: The challenges of formalism and computation

The tension between rule and judgment is well known with respect to the meaning of substantive legal commands. The same conflict is present in fact finding. The law penetrates to virtually all aspects of human affairs; irtually any interaction can generate a legal conflict. Accurate fact finding about such disputes is a necessary condition for the appropriate application of substantive legal commands. Without accuracy in fact finding, the law is unpredictable, and thus individuals cannot efficiently accommodate their affairs to its commands. The need for accuracy and predictability in legal fact finding has generated a search for formal tools to apply to the task. Among the tools that have been examined are Bayes' Theorem and expected utility theory (Bayesian or statistical decision theory). These tools do not map well onto trials, which in turn has generated an examination of alternative approaches, in particular the story model and the relative plausibility theory. This paper discusses these issues in turn. It elaborates the basic structure of trials in the American tradition; examines the uneasy relationship between trials and such formalisms as Bayes' Theorem and expected utility theory; and introduces the relative plausibility theory as an explanation of the nature of juridical proof.