[Proceedings] 1988 International Conference on Computer Integrated Manufacturing

23-23 May 1988

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  • 1988 International Conference on Computer Integrated Manufacturing

    Publication Year: 1988
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    Freely Available from IEEE
  • The integration of manufacturing information systems

    Publication Year: 1988, Page(s):217 - 225
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    The status of computerization in industry is examined, using the results of a survey of European manufacturers. It is shown that some areas (e.g. inventory, design) are more computerized than are others, but that even where one firm has computerized multiple segments of its operation, the computer systems used are rarely integrated. Methods of integrating systems within and between businesses are ... View full abstract»

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  • IGES and PDES, the current status of product data exchange standard

    Publication Year: 1988, Page(s):210 - 216
    Cited by:  Papers (2)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    Currently, IGES (Initial Graphic Exchange Specification) is the international standard for exchange product definition data between CAD (computer-aided design) systems. However, due to its efficiencies, a new standard is in the process of development and will gradually replace IGES. It is believed that PDES will be less error-prone than IGES. Its improvements include free-form format representatio... View full abstract»

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  • Simulation analysis applied to the design of a totally automated assembly system

    Publication Year: 1988, Page(s):368 - 376
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    Partial results are presented of a research project, geared toward developing an automated assembly system design proposal. The assembly system is intended for production of small copiers and similar products composed primarily of plastic parts small motors, and externally supplied electronic and mechanical components. The candidate systems designed are developed and simulation analysis is used to... View full abstract»

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  • Spatial and temporal decomposition method in production management

    Publication Year: 1988, Page(s):153 - 158
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    Some decomposition methods to split scheduling problems into smaller scheduling subproblems are discussed. Spatial decomposition methods consist of dividing the production system into subsystems that are as independent as possible. It is shown how to manage the remaining links between these subsystems. Temporal decomposition handles the problem with a decomposition along the time axes: part sets a... View full abstract»

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  • A facility-level CIM system

    Publication Year: 1988, Page(s):253 - 263
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (980 KB)

    Application modules are identified that clearly lend themselves to an integrated information flow in a controlled manner: CAD (computer-aided design) and CAPP (computer-aided process planning) consist of the product and process design centers of the proposed system respectively. MRP II undertakes the management of production plants to satisfy the market demand. The functional design of the system ... View full abstract»

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  • Automated design of fixtures for FMS

    Publication Year: 1988, Page(s):201 - 207
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    A system for the automated design of fixtures is under development at the University of Minnesota at Duluth and at the University of Birmingham, UK. This system is being developed on a microVAX and a GPX workstation using solid modeling CAD (computer-aided design) and a Lisp-based inference engine. The CAD-rulebase interface languages being used are Fortran and C. A structured set of rules has bee... View full abstract»

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  • Production control implications for CIMS

    Publication Year: 1988, Page(s):343 - 349
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The implications and importance of production control for CIM (computer-integrated manufacturing) are discussed. To better understand what these implications are, a list of twenty desirable attributes of computer integrated production planning and control (CIPP&C) systems are presented. The list is neither exhaustive nor mandatory. It is in a sense a wish list and it is unlikely that any one s... View full abstract»

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  • Complete manufacturing control using a contract net: a simulation study

    Publication Year: 1988, Page(s):100 - 109
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1104 KB)

    Contract nets, which use a bidding mechanism to solve problems, were first proposed as artificial intelligence constructs for distributed problem solving. They have recently been applied to distributed manufacturing control. The contract net presented, called a complete contract net, is intended to implement both high- and low-level control. The complete contract net incorporates mechanisms for ju... View full abstract»

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  • PRISM (PRoductivity Improvement Systems for Manufacturing)-a CIM integration at AT&T

    Publication Year: 1988, Page(s):2 - 8
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    PRISM, the manufacturing execution link of the overall CIM (computer-integrated manufacture) architecture at AT&T, is a family of computerized information systems supporting end-to-end shop floor operations. The work presents how PRISM supports the manufacturing operations, and describes the functionalities and architectures of the PRISM systems. PRISM supports the movement of materials from t... View full abstract»

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  • An online supervisor for robotic tasks

    Publication Year: 1988, Page(s):274 - 281
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    To increase task flexibility in a robotic assembly environment, a hierarchical planning and execution system is being developed which will map user-specified three-dimensional part assembly tasks into various target robotic workcells, and execute these tasks efficiently using manipulators and sensors available in the workcell. One level of this hierarchy, the supervisor, is responsible for assigni... View full abstract»

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  • Distributed architecture for production planning and control in discrete manufacturing

    Publication Year: 1988, Page(s):357 - 366
    Cited by:  Papers (7)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The production management (PM) problems to be solved in a discrete manufacturing plant of large dimension are analyzed. Two separated approaches are discussed: the plant manager approach and the systems integrator approach. In the former, one states the PM objectives to be optimized; using the latter, one must suggest the mathematical formalizations of PM problems and the methods to solve them. A ... View full abstract»

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  • The strategic design driven inspection of machined parts

    Publication Year: 1988, Page(s):122 - 128
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (700 KB)

    A system for the automatic dimensional inspection of machined industrial parts is under development. Key attributes of the system are its use of design knowledge, i.e. the CAD (computer-aided design) description of the part to be inspected and the strategic use of diverse sensors to generate geometric descriptions of the actual part being inspected as well as the designer's conception of the part.... View full abstract»

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  • Integrating the CIM environment using object-oriented data management technology

    Publication Year: 1988, Page(s):144 - 152
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    Integration of a CIM (computer-integrated manufacturing) environment requires coordinated solutions to data-management problems for individual application systems as well as for exchange of data between these applications. This requires a common framework for data management throughout the CIM environment. The authors discuss the object paradigm as a framework for this purpose. They present an exp... View full abstract»

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  • An extended horizon scheduling algorithm for the job-shop problem

    Publication Year: 1988, Page(s):249 - 252
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    A real-time scheduling algorithm for a flexible manufacturing system environment is described. This algorithm uses a schedule space search which is characterized by a heuristic-oriented approach based on simulation. The algorithm can be seen as a look-ahead dispatching rule, because the simulation-based search gives a forecast of how good a schedule can be, before choosing the best one. The algori... View full abstract»

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  • Part families selection for computer integrated manufacturing systems

    Publication Year: 1988, Page(s):194 - 200
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    The problem of partitioning the part types produced by a flexible manufacturing system (FMS) is discussed. The system examined is designed to produce a set of part types, the number of which is too high to run simultaneously on the system. Constraints imposed by the specifications of the system, such as capacity of tool magazines, number of existing pallets and/or capacity of buffers are violated.... View full abstract»

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  • New methods for tolerance analysis in solid modeling

    Publication Year: 1988, Page(s):306 - 314
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    Results are presented of research at IBM into the use of solid modeling technology for the automated solutions of tolerating problems. This work focuses on the tolerance analysis problem, and presents several methods for the automated solution of three-dimensional tolerance analysis problems, using solid modeling technology. A Monte Carlo method is presented for both worst-case and statistical tol... View full abstract»

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  • An integrated data model for CIM planning and control

    Publication Year: 1988, Page(s):338 - 342
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    After describing a database-centered planning environment, the article concentrates on issues involved in developing an integrated data model. These include (1) the data requirements for representing modern manufacturing systems, (2) the data requirements for a decision-making environment, and (3) the data requirements of the planning models themselves. By emphasizing information relationships, th... View full abstract»

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  • Decision support systems for tool management in FMS

    Publication Year: 1988, Page(s):53 - 61
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    A decision support system (DSS) for tool management in flexible manufacturing systems (FMS) is presented. First an overview of tool management functions and tooling system components is given. Then the essential components in the design of a DSS are presented and the implementation and benefits derived from the system are discussed View full abstract»

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  • Server networks: software integration tools for CIM

    Publication Year: 1988, Page(s):226 - 235
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Graphical software-development mechanisms are presented that produce server networks, which are flexible, modular CIM (computer-aided manufacturing) software systems. The Server Network Generator (SNG) is an interactive expert system used to graphically configure a network, while automatically enforcing network integrity rules, and to remotely develop and maintain its distributed software. Graphic... View full abstract»

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  • An integrated analysis of flexible assembly systems

    Publication Year: 1988, Page(s):377 - 382
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB)

    An attempt to define the requirements for a flexible automated assembly system is discussed. The system's flexibility is a structural characteristic that depends on the physical design of the system and the product. The author addresses three critical questions: (i) what is flexible assembly, (ii) what is design for assembly, and (iii) how is it possible to economically analyze assembly lines? The... View full abstract»

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  • A flexible interface between two-dimensional representation and three-dimensional representation

    Publication Year: 1988, Page(s):160 - 170
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    An approach is presented to reconstructing an object from its engineering drawing by recognizing the 2-D features on the drawing and using volume sweeping. Important features on the drawing like symmetry, ear, rib, hole pattern and cross section are recognized. Nonexact projections are removed first, then primitives are constructed by sweep volume according to the cross section. The final object i... View full abstract»

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  • A generalized calibration method for robots in manufacturing applications

    Publication Year: 1988, Page(s):266 - 272
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    A generalized method of robot calibration is presented. Using this method, the true values of the robot's joint and link parameters can be estimated, which would considerably improve the accuracy of current industrial robots and remove one of the major obstacles to the implementation of offline programming. This calibration method, unlike some previous techniques, is general in nature and applicat... View full abstract»

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  • A hierarchical modeling methodology for flexible manufacturing systems using extended Petri nets

    Publication Year: 1988, Page(s):350 - 356
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    A theory of extended Petri nets is proposed to enable the modeling of flexible manufacturing systems in a more comprehensive manner. The theory considers both the flow of control and flow of information, resources and parts in a system. A methodology for hierarchically modeling manufacturing systems using extended Petri net techniques, to ensure a priori the desirable properties of system performa... View full abstract»

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  • Using Grafcet to design generic controllers

    Publication Year: 1988, Page(s):110 - 119
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Ways in which Grafcet is being used to help design generic controllers within the US National Bureau of Standards' Automated Manufacturing Research Facility are outlined. Grafcet is a powerful graphic language for expressing control flow and allows the expression of both parallel and sequential control logic. The rationale is described for using Grafcet as a design tool for expressing software for... View full abstract»

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