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An object-oriented multitasking control environment for multirobot system programming and execution with 3D graphic simulation

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INTERNATIONAL JOURNAL OF PRODUCTION ECONOMICS 1999年第3期60-1卷 241-250页

作者： Yasuda, GI Nagasaki Inst Appl Sci Fac Engn Dept Mech Engn Nagasaki 85101 Japan

This paper describes an object-oriented distributed control environment for industrial multirobot applications. A distributed computing environment, where workpieces, robots, and other industrial devices such as a vision sensor are defined as software objects with class inheritance hierarchy, supports human-friendly task-level programming and automated robot program generation with 3D graphic simulation, and performs supervisory and real-time sensor-based coordinated control of multirobot systems. Using object-oriented multitasking control with a preemptive rescheduler, vision-based robot positioning and pick and place operations for exchange of a workpiece are demonstrated to validate the control performance of the computing environment. (C) 1999 Elsevier Science B.V. All rights reserved.

关键词： intelligent autonomous robot systems object-oriented modeling distributed processing 3D graphic simulation

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Product Configuration Knowledge modeling Using Extend object Model

Product Configuration Knowledge Modeling Using Extend Object...

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7th International Conference on e-Engineering and Digital Enterprise Technology

作者： Xu, Zhiwei Sheng, Zhongqi Xie, Hualong Northeastern Univ Sch Mech Engn & Automat Shenyang Liaoning 110004 Peoples R China

ISBN: (纸本)9780878492992

This paper presents an extended object model for case-based reasoning in product configuration design. In the extended object model a few of methods of knowledge expression are adopted such as constraints, rules, objects etc. On the basis of extended object model, case representation model for case-based reasoning is applied to product configuration design system. The product configuration knowledge can be represented by the extended object. The model can support all the processes of case-based reasoning in product configuration design such as case representation, indexing, retrieving and case revising. The model extends traditional object-oriented model by including the relationship class used to express the relation between the cases, constraints class used in the product configuration knowledge representation, index class used in case retrieving, solution class used in case revise. So the product configuration knowledge that used in the product configuration design can be represented by using this model. In the end a Metering pump product configuration design systems is developed on the basis of the proposed product configuration model to support customized products.

关键词： Mass customization Product configuration Case-based reasoning CBR object-oriented modeling Case representation

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object-oriented Security Constrained Quadratic Optimal Power Flow

Object-Oriented Security Constrained Quadratic Optimal Power...

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IEEE-Power-and-Energy-Society General Meeting (PESGM)

作者： Zhong, Chiyang Meliopoulos, A. P. Sakis AlOwaifeer, Maad Xie, Jiahao Ilunga, Gad Georgia Inst Technol Sch Elect & Comp Engn Atlanta GA 30332 USA

ISBN: (纸本)9781728155081

Increased penetration of distributed energy resources (DERs) creates challenges in formulating the security constrained optimal power flow (SCOPF) problem as the number of models for these resources proliferate. Specifically, the number of devices with different mathematical models is large and their integration into the SCOPF becomes tedious. Henceforth, a process that seamlessly models and integrates such new devices into the SCOPF problem is needed. We propose an object-oriented modeling approach that leads to the autonomous formation of the SCOPF problem. All device models in the system are cast into a universal syntax. We have also introduced a quadratization method which makes the models consisting of linear and quadratic equations, if nonlinear. We refer to this model as the State and Control Quadratized Device Model (SCQDM). The SCQDM includes a number of equations and a number of inequalities expressing the operating limits of the device. The SCOPF problem is then formed in a seamless manner by operating only on the SCQDM device objects. The SCOPF problem, formed this way, is also quadratic (i.e. consists of linear and quadratic equations), and of the same form and syntax as the SCQDM for an individual device. For this reason, we named it security constrained quadratic optimal power flow (SCQOPF). We solve the SCQOPF problem using a sequential linear programming (SLP) algorithm and compare the results with those obtained from the commercial solver Knitro on the IEEE 57 bus system.

关键词： Contingency object-oriented modeling Security Constrained Quadratic Optimal Power Flow Sequential Linear Programming

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A system for diagram editor generation and ODBMS integration based on object-oriented model information

A system for diagram editor generation and ODBMS integration...

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Conference on Visual Data Exploration and Analysis IV

作者： Gille, RM Balzert, H Lehrstuhl für Software-Technik Ruhr-Universität Bochum D-44780 Bochum Universitätsstr. 150 Germany

ISBN: (纸本)0819424285

We introduce concepts and construction of a system for the generation of diagram editors based on object-oriented model informations, Only the object-oriented model and the definition of the desired diagram notation has to be provided by the software developer. The software developer specifies symbols to be used as a graphical representation for the instances of a class and defines graphical link constellations to represent links between these instances. The system allows the automated integration of an object-oriented database management system for the management of diagram and application information.

关键词： generation of diagram editors object-oriented modeling symbols graphical link constellations state monitoring specialization reverse engineering

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An object-oriented framework for rapid development of image analysis applications

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Medical Imaging 1997 Symposium - Image Processing

作者： Liang, WD Zhang, XM Sonka, M Departments of Electrical and Computer Engineering University of Iowa Iowa City IA United States Taligent Inc. Cupertino CA United States

ISBN: (纸本)0819424455

Image analysis applications are usually composed of a set of graphic objects, a set of image processing algorithms, and a graphic user interface (GUI). Typically, developing an image analysis application is time-consuming and the developed programs are hard to maintain. We have developed a framework called IMANAL that aims at reducing the development costs by improving system maintainability, design change flexibility component reusability, and human-computer interaction. IMANAL decomposes an image analysis application into three models;data model, process model, and GUI model. The three models as well as the collaboration among them are standardized into a unified system architecture. A new application can be developed rapidly by customizing task-specific building blocks within the unified architecture. IMANAL maintains a class library of more than 100,000 lines of C/C++ code that are highly reusable for creating the three above mentioned models. Software components from other sources such as Khoros can also be easily included in the applications. IMANAL was used for development of image analysis applications utilizing a variety of medical images such as X-ray coronary angiography, intracardiac, intravascular and brachial ultrasound, and pulmonary CT. In all the above listed applications, the development productivity was significantly increased. With the IMANAL, most of the development overhead is removed and the developer is able to fully focus on the image analysis algorithms. IMANAL has proven to be a useful tool for image analysis research as well as the prototype development tool for commercial image analysis applications.

关键词： object-oriented design and programming object-oriented modeling software engineering image analysis image-processing human-computer interaction

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Digital object multimodel simulation formalism and architecture

Digital object multimodel simulation formalism and architect...

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Conference on Enabling Technology for Simulation Science IV

作者： Cubert, RM Fishwick, PA Univ Florida Dept Comp Sci & Informat Engn Gainesville FL 32611 USA

ISBN: (纸本)0819436526

The object-oriented approach known as heterogeneous behavior multimodeling her been developed, used, and reported elsewhere, to facilitate creation, modification, sharing, and reuse of object-oriented models and the simulations created from those models. The digital object extends multimodeling so that digital objects can be shared and combined in ways that ordinary multimodels cannot. We describe an abstract base multimodel and several derived instantiated multimodel types. We also describe a transformation which takes a digital object to a simulation program. We give formal definitions of multimodeling, digital object, and the transformation, then from these definitions prove correctness of execution sequencing of simulations created by applying the transformation to digital objects. Closure under coupling of digital objects follows as a corollary, subject to an assumption regarding experimental frame. We then construct an abstract base architecture for manufacture, flow, and persistence of digital objects. From the base architecture we derive and instantiate a suite of architectures, each targeted at a distinct set of requirements: one to operate locally, another with internet protocols, a third with web protocols, and a fourth to allow digital objects to interoperate with other kinds of simulations.

关键词： simulation object-oriented modeling model abstraction heterogeneous behavior multimodel digital object

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Extend object Model for Case-Based Reasoning in Product Configuration Design

Extend Object Model for Case-Based Reasoning in Product Conf...

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21st Chinese Control and Decision Conference

作者： Xu Zhiwei Xie Hualong Liu Yongxian Northeastern Univ Sch Mech Engn & Automat Shenyang 110004 Peoples R China

ISBN: (纸本)9781424427239

This paper presents an extended object model for case-based reasoning in product configuration design. The model can support all the processes of case-based reasoning in product configuration design such as case representation, indexing, retrieving and case revising. It is different from traditional object model. The model extends traditional object-oriented model by including the relationship class used to express the relation between the cases, constraints class used in the product configuration knowledge representation, index class used in case retrieving, solution class used in case revise. So a complex Case can be represented by using this model. In the end a product configuration design systems is developed on the basis of extend object model to support customized products.

关键词： mass customization product configuration case-based reasoning CBR object-oriented modeling Case Representation

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MOOSE: Architecture of an object-oriented multimodeling simulation system

MOOSE: Architecture of an object-oriented multimodeling simu...

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Conference on Enabling Technology for Simulation Science

作者： Cubert, R Goktekin, T Fishwick, PA Univ. of Florida (United States)

ISBN: (纸本)0819424986

MOOSE (Multimodel object oriented Simulation Environment) is an enabling environment for modeling and simulation, under construction at University of Florida, based on OOPM (object oriented Physical modeling). OOPM extends object-oriented program design with visualization and a definition of system modeling that reinforces the relation of model to program. OOPM is a natural mechanism for modeling large-scale systems, and facilitates effective integration of disparate pieces of code into one simulation. Components of MOOSE are Modeler, Translator, Engine, and Scenario: (1) Modeler interacts with model author via GUI to capture model design, (2) Translator is a bridge between model design and model execution, reading Modeler output, building structures representing model, and emitting C++ (or potentially other) code for model;(3) Engine is a C++ program, composed of Translator output plus runtime support, compiled and linked once, then repeatedly activated for Model Execution;(4) Scenario is a visualization-enabling GUI which activates and interacts with Engine, and displays Engine output in a form meaningful to user. Dynamic model types supported include Finite State Machine, Functional Block Model, and Equational Constraint, models;alternatively, model authors may create their own C++ ''code models'';model types may be freely combined;class libraries facilitate reuse. MOOSE emphasizes multimodeling, which glues together models of the same or different types, produced during model refinement, reflecting various abstraction perspectives, to adjust model fidelity, during development and during model execution. Underlying multimodeling is ''Block'' as fundamental object. Every model is built from Blocks, expressed in a modeling Assembly Language.

关键词： simulation multimodel object-oriented modeling object oriented physical modeling visualization

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CONTACT TYPES HIERARCHY AND ITS object-oriented IMPLEMENTATION 6

CONTACT TYPES HIERARCHY AND ITS OBJECT-ORIENTED IMPLEMENTATI...

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6th International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS)

作者： Kosenko, Ivan I. Gerasimov, Kirill V. Stavrovskiy, Mikhail E. Moscow State Tech Univ Radio Engn Elect & Automat 78 Vernadsky Ave Moscow 119454 Russia Lomonosov Moscow State Univ Fac Mech & Math Moscow 119991 Russia STAN Grp Moscow 127994 Russia

ISBN: (纸本)9788494392832

Technology of the object-oriented implementation for the multibody dynamics models is the key feature when developing the corresponding computer structures. We are based on an approach originating from concepts explained earlier. Following the guidelines outlined there one can develop the family of the constraint abstractions being adapted to any type of the machinery applications and relatively easily implement corresponding family of Modelica models. One also can reorder these classes hierarchically using sequences of the behaviour inheritance. Solutions concerning contact problems and corresponding examples are under consideration.

关键词： object-oriented modeling Mechanical Constraint Contact Model Template Omni Wheel Contact Tracking

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Using High-Level Petri Nets with object-Orientation for modeling Flexible Manufacturing Systems 18

Using High-Level Petri Nets with Object-Orientation for Mode...

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18th International Carpathian Control Conference (ICCC)

作者： Brezovan, Marius Stanescu, Liana Univ Craiova Comp & Informat Technol Dept Craiova Romania

ISBN: (纸本)9781509048625

Due to their increasing complexity, the research in the area of Flexible Manufacturing Systems (FMS) is still is in a continuous increase. In this paper we consider the design and the modeling aspects of FMS from an object-oriented perspective. We use the formalism of High-Level Petri Nets with object-Orientation (HLPNOO) to model an FMS by considering a number of basic FMS components. Each component of a FMS is modeled as a class from the HLPNOO formalism, as well a the entire FMS and its controller. We will strengthen the proposed method with a modeling example.

关键词： flexible manufacturing systems formal specifications Petri nets object-oriented modeling

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