计算机与现代化

• 应用与开发 • 上一篇    下一篇

一种多层分布式情境装配模型

  

  1. (河海大学计算机与信息学院智能科学与技术研究所,江苏 南京 211100)
  • 收稿日期:2015-10-12 出版日期:2016-03-17 发布日期:2016-03-17
  • 作者简介:宋晨(1988-),男,宁夏银川人,河海大学计算机与信息学院智能科学与技术研究所硕士研究生,研究方向:计算机图形学,虚拟现实,虚拟装配; 刘惠义(1961-),男,江苏常州人,教授,博士,研究方向:计算机图形学,CAD/CAM,虚拟现实,科学计算可视化。

A Distributed Multi-layer Context-aware Assembly Model

  1. (Institute of Intelligent Science and Technology, College of Computer and Information, Hohai University, Nanjing 211100, China)
  • Received:2015-10-12 Online:2016-03-17 Published:2016-03-17

摘要: 提出一种以Agent技术为基础的多层分布式的虚拟场景模型。先从装配体的视角构建装配信息模型,根据刻画特征对象的各项参数定义装配知识层;装配决策层将零件视为Agent,并定义Agent间传输状态参数的消息模板,同时根据虚拟装配任务的过程特点,建立决策规则;最后,定义用户控制层的运动控制算法,实现对用户的运动引导。实验表明该场景模型可在虚拟场景中有效呈现装配任务,并根据上下文情境准确理解用户意图。

关键词: 虚拟现实, 虚拟装配, 情境装配, 多Agent系统

Abstract: An agent-based distributed multi-layer virtual assembly model is proposed. Firstly, we construct an assembly information model in the sight of each component, define the assembly knowledge layer based on a series of parameters used to describe feature object. The assembly decision layer treats the parts as individual agents, and defines a series of message templates for transforming parameters between agents. To help agents make proper decision, decision rules are summarized based on process of virtual assembly. Finally, the control layer is defined with a dynamic DOF updating algorithm, to lead users’ operation in a proper order. Experiment result shows that the proposed model can understand user behavior nicely.

Key words: virtual reality, virtual assembly, context-aware assembly, multi-agent system

中图分类号: