Implementation of virtual factory using MMS companion standard

2003 ◽  
Author(s):  
Kwan-Joo Myoung ◽  
Dong-Sung Kim ◽  
Wook Hyun Kwon
Keyword(s):  
Virtual Factory

Forming partnerships in a virtual factory

2007 ◽  
Vol 161 (1) ◽  
pp. 87-102 ◽  
Author(s):  
George L. Vairaktarakis ◽  
Jamshid C. Hosseini
Keyword(s):  
Virtual Factory

DESIGN OF AN INTERACTIVE VIRTUAL FACTORY USING CELL FORMATION METHODOLOGIES

2003 ◽  
Vol 02 (02) ◽  
pp. 229-246 ◽  
Author(s):  
T. KESAVADAS ◽  
M. ERNZER
Keyword(s):  
Virtual Environment ◽  
Clustering Algorithm ◽  
Flow Analysis ◽  
Cell Formation ◽  
Open Architecture ◽  
Successful Implementation ◽  
Design Environment ◽  
Virtual Factory ◽  
Software Modules ◽  
And Performance

This paper describes an interactive virtual environment for modeling and designing factories and shop floors. The factory building tool is developed as an open architecture in which various modules can be utilized to quickly implement factory design algorithms ranging from plant layout to factory flow analysis. Software modules and utilities have been implemented to allow easy set-up of the visual interface. In this paper, this virtual factory is used to implement cellular manufacturing (CM) system. CM has traditionally been a very complicated system to implement in practice. However successful implementation of the system has improved productivity immersely. Several issues involved in implementing CM within our virtual factory machine modeling and interface designs for defining the cells, are discussed. The mathematical clustering algorithm called Modified Boolean Method was implemented to automatically generate complex virtual environments. The virtual factory makes the process of CM-based factory design a very easy and intuitive process. Though the cell formation problem is NP-complete in 2D space, issues related to human factors and ergonomics can be better perceived in a 3D virtual environment. It also leads to further optimization with respect to maintainability and performance, and thus help get better solutions, which are not visible unless the factory is built. Our virtual factory interface also allows easy reassignment of machines and parts, subcontracting of bottleneck parts and rearranging of machines within the same design environment, making this a productive industrial tool. 3D virtual factory can also be automatically generated from the Part Machine interface called the Virtual Matrix Interface.

Telemetry-Based Depth Recovery for Virtual Factory Construction and Extension to Remote Facility Management

1999 ◽  
Author(s):  
Dan Zetu ◽  
Pat Banerjee ◽  
Ali Akgunduz
Keyword(s):  
3D Models ◽  
Human Motion ◽  
Facility Management ◽  
Virtual Manufacturing ◽  
Shop Floor ◽  
Virtual Factory ◽  
Depth Recovery ◽  
Camera Location ◽  
Virtual Manufacturing Environment ◽  
2D Images

Abstract The fast construction of a Virtual Factory model without using a CAD package can be made possible by using computer vision techniques. In order to create a realistic Virtual Manufacturing environment, especially when such a model has to be created in correlation to an existing facility, a reliable algorithm that extracts 3D models from camera images is needed, and this requires exact knowledge of the camera location when capturing images. In this paper, we describe an approach for depth recovery from 2D images based on tracking a camera within the environment. We also explore the extension of our telemetry-based algorithm to remote facility management, by tracking and synchronizing human motion on the shop floor with motion of an avatar in a Virtual Environment representing the same shop floor.

scholarly journals Supporting Predictive Maintenance in Virtual Factory

2021 ◽  
pp. 151-160
Author(s):  
Go Muan Sang ◽  
Lai Xu ◽  
Paul de Vrieze
Keyword(s):  
Predictive Maintenance ◽  
Virtual Factory

A Temporal Process Specification Language for Virtual Manufacturing Engineering

1998 ◽  
Author(s):  
David E. Lee ◽  
H. Thomas Hahn
Keyword(s):  
Manufacturing Process ◽  
Specification Language ◽  
Virtual Manufacturing ◽  
Process Definition ◽  
Virtual Factory ◽  
Process Specification ◽  
Temporal Relationships ◽  
Temporal Process ◽  
Definition Of ◽  
Virtual Process

Abstract A process specification language is being developed for virtual manufacturing that provides a structured portable definition of a given manufacturing process as well as the ability to specify the temporal relationships between individual operation steps that compose a process. Based on the concepts embodied in markup languages such as HTML, SGML and XML, a portable process definition structure is defined. This structure provides a template from which virtual process specifications can be created. Subsequently, these structures can be exchanged between development environments for virtual process engineering and the actualized manufacturing facilities where processes are implemented. In addition, dependencies in time between the operation steps of a process such as common start times and operation serialization can be represented to allow for a complete specification of temporal behavior of a given manufacturing process. By providing this explicit mechanism for representing temporal constraints, a virtual manufacturing process can be viewed and utilized both in a localized application on a single virtual factory floor as well as distributed across multiple, interlinked virtual environments.

Design of an Interactive Virtual Factory Using Cell Formation Methodologies

1999 ◽  
Author(s):  
T. Kesavadas ◽  
M. Ernzer
Keyword(s):  
Clustering Algorithm ◽  
Flow Analysis ◽  
Cell Formation ◽  
Open Architecture ◽  
Successful Implementation ◽  
Design Environment ◽  
Virtual Factory ◽  
Machine Modeling ◽  
Software Modules ◽  
Set Up

Abstract This paper describes an interactive virtual environment for modeling and designing factories and shop floors. The factory building tool is developed as an open architecture in which various modules can be utilized to quickly implement factory design algorithms ranging from plant layout to factory flow analysis. Software modules and utilities have been implemented to allow easy set-up of the visual interface. In this paper this virtual factory is used to implement cellular manufacturing (CM) system. CM has traditionally been a very complicated system to implement in practice. However the productivity rise obtained by the successful implementation of the system has been proved to be immense. Several issues involved in implementing CM within our virtual factory machine modeling and interface designs for defining the cells, are discussed. The mathematical clustering algorithm called Modified Boolean Method was implemented to automatically generate complex virtual environments. The virtual factory makes the process of CM-based factory design a very easy and intuitive process. Virtual factory interface also allows easy reassignment of machines and parts, subcontracting of bottleneck parts and rearranging of machines within the same design environment, making this a productive industrial tool.

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