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Study on Manufacturing System with Open Architecture and Distributed Intelligent Modules

开放式体系结构和分布式智能模块制造系统研究

基本信息

批准号：
11450057
负责人：
ARAI Eiji
金额：
$ 2.56万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450057/
关键词：
Designers' Intention Deformable Objects Operation Planning Autonomous Distributed Manufacturing System Active Database Dynamic Scheduling 分散シミュレーション HLA 協調 CAD 機能表現非幾何情報

项目摘要

1. A description model of designers' intention that might be helpful to reduce the troublesome communications among designers was proposed. The designers' intention was described as the correlation using required functions, binding conditions, technical information, connotational assignments and geometric information. Required functions were represented by a tree structure to show the sequence of designers' consideration. The lowest function was assigned to functional elements that are selected from geometric information according to connotational assignments. Additionally, binding conditions and technical information were related to functional elements. The effective usage of designers' intention model was verified under the redesign process.2. A representation of thin object manipulation was proposed. First, the contact state between a thin object and (environmental surfaces in the two-dimensional space was represented qualitatively as finite contact patterns. Secondly, the contact p … More attern transition was defined. Thin object manipulation can be represented as a network whose nodes mean contact patterns and whose arcs mean pattern transitions. Finally, manipulation process generation system was developed based on this representation method. Some examples showed that our proposed method will be useful for manipulation planning or derivation of task strategies.3. An architecture of dynamic scheduling using active database was proposed to realize an autonomous distributed manufacturing system. The proposed system employed both of the centralized scheduling algorithm and the distributed information processing concept to achieve efficiency and flexibility of manufacturing systems, respectively. In the system, the active database was a core module acting as a data manager. Autonomous machining cells received machining orders from the active database, and sent machining status as well. Dynamic scheduling was performed to send machining orders to the active database when the events such as a machine trouble and a job addition happened. The system simulator was developed to verify the performance of the proposed system. Less

1.提出了一种设计意图的描述模型，该模型有助于减少设计人员之间繁琐的沟通。设计者的意图被描述为使用所需功能、约束条件、技术信息、内涵分配和几何信息的关联。所需功能用树形结构表示，以显示设计者的考虑顺序。最低的功能被分配给功能元素，这些功能元素是根据内涵分配从几何信息中选择的。此外，结合条件和技术信息与功能要素有关。验证了设计师意图模型在再设计过程中的有效运用.提出了一种薄对象操作的表示方法。首先，在二维空间中薄物体与环境表面之间的接触状态被定性地表示为有限接触模式。第二，接触P ...更多信息定义了模式转换。薄对象操作可以表示为网络，其节点表示接触模式，其弧表示模式转换。最后，基于该表示方法开发了操作过程生成系统。实例表明，该方法对机器人的操作规划和任务策略的推导具有一定的指导意义.提出了一种基于主动数据库的分布式制造系统动态调度体系结构。该系统采用集中式调度算法和分布式信息处理概念，分别实现制造系统的效率和灵活性。主动数据库是系统的核心模块，起着数据管理器的作用。自主加工单元从活动数据库接收加工命令，并发送加工状态。当发生设备故障、工件增加等事件时，执行动态调度，将加工指令发送到主动数据库。系统仿真器的开发，以验证所提出的系统的性能。少