[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
  • 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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  • 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 knowledge-based system for CAD/CAM integration

    Publication Year: 1988, Page(s):396 - 404
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    A knowledge-based approach is presented for data integration. The objective is to illustrate how a frame-based knowledge structure can be used to advantage in the automatic evaluation of design for better manufacturability. Several features are discussed with emphasis on automated procedures using the proposed description method. Coupling this discussion and the research experience in working on a... 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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  • 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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  • Automatic construction of assembly partial-order graphs

    Publication Year: 1988, Page(s):383 - 392
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    A system is presented which automatically constructs an assembly partial-order graph from an object-oriented model describing parts and their connections. The construction is based on the principle of assembly by disassembly and on assembly heuristics representing criteria for preferred subassemblies. The system first identifies disassemblable parts and subassemblies by reasoning geometric and phy... 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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  • Integration of design, planning, and manufacturing subsystems in sheet metal processing

    Publication Year: 1988, Page(s):138 - 143
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB)

    The elements and integration are described of a prototype manufacturing system which achieves a fully automated link between all CIM (computer-integrated manufacturing) functions from design to machine output. A generative computer-aided process-planning module operates directly on CAD exchange files, supplying part process information to a master production compiler. The compiler, in turn, combin... 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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  • Intelligent decision support for manufacturing enterprise

    Publication Year: 1988, Page(s):44 - 52
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    A set of ongoing research activities at the Decision System Laboratory (DSL) at Stanford University is briefly described. These activities address the global issue of strategic integration from the technical point of view of developing intelligent decision support systems (IDSS) which support the management process in strategic integration. The approach is to break the global issue into three basi... View full abstract»

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  • Automated generation and evaluation of control programs for discrete manufacturing processes

    Publication Year: 1988, Page(s):92 - 99
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    A set of software tools is described for specifying the control and process dynamics for discrete manufacturing systems. Specifications are entered and modified in a relational database using a formalism that naturally reflects the functional components of a discrete control system. A Petri-net model of the control and process logic is extracted automatically from the database, and various analysi... 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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  • FRAFES, a frame-based feature extraction system

    Publication Year: 1988, Page(s):296 - 305
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    A prototype feature extraction system based on frame representation of part data and features is presented. A feature description language (FDL), based on semantic nets, is described. The objective of this approach is to provide an intelligent and flexible link between design and manufacturing. Finally, the system implementation and sample results are discussed View full abstract»

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  • A computer integrated manufacturing cell for use in education and training

    Publication Year: 1988, Page(s):321 - 326
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    A computer-integrated manufacturing (CIM) cell has been developed for use in colleges, universities, and industrial training centers. This CIM cell, complete with curriculum for the system and each of the five modules, can be used to teach the principles involved in implementing computer-integrated manufacturing in industry. One cell has already been installed for use in a classroom environment, b... 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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  • Development and integration of a microcomputer based image analysis system for automatic PCB inspection

    Publication Year: 1988, Page(s):129 - 135
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Completely repeatable inspection of printed circuit boards (PCBs) requires that the inspection be automated. The cost of such inspection is beyond most medium to small PCB manufacturers. The authors address this problem with a microcomputer-based image-analysis system. Illumination, filtering, and flaw detection of the IBM-AT-based system are addressed. The authors conclude that when processing co... View full abstract»

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  • A comparative analysis of tool management system, architectures designed for flexible machining and assembly (FMS/FAS) systems in CIM environment

    Publication Year: 1988, Page(s):36 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    The design is discussed of a flexible machining system (FMS) turning-tool database and tool-management system design as well as a robot-tool-management system design for flexible assembly systems (FAS), both based on common principles, resulting in generic system architecture. Besides explaining the methodology, based on hierarchical decomposition principles, both turning-tool and robot-tool-manag... View full abstract»

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  • A new approach to performance analysis of closed queueing networks

    Publication Year: 1988, Page(s):85 - 90
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    A heuristic algorithm called Queueing Network Analyzer (QNA) is proposed for the evaluation of the average performance in a queuing network. The algorithm is based on an iterative procedure for the determination of the mean queue lengths, throughput, and machine utilizations. The computation of these quantities is performed by using novel heuristically justified relations. The derivation of the al... View full abstract»

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  • Dynamic programming solution to the stochastic multiple lot dispatching in an FMS

    Publication Year: 1988, Page(s):238 - 243
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB)

    The production scheduling problem considered is related to the planning of operations of a flexible manufacturing cell composed of a punch press and a shear that produce parts from metal plates. A stochastic control problem is identified, to optimize the expected discounted cost of the system. The control consists in dispatching n bins to a processor unit which can process only one bin a... 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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  • Mathematical techniques in solid modeling

    Publication Year: 1988, Page(s):290 - 295
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    Basic computational problems in mathematics for solid modeling are discussed. It is shown how merging results from algebras, geometry, and approximation theory into effect tools can lead to a higher level of performance in solid modeling. Effective mathematical techniques are shown, such as singularity analysis and resolution, parameterization and implicitization, residue computation and Chinese r... 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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  • The application of state-of-the-market CIM to GE's electrical distribution and control business

    Publication Year: 1988, Page(s):316 - 320
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    The application of innovative sheet-metal fabrication and automated assembly technologies in GE's ED&C production operations is reviewed. Specific attention focused is on the integration of workcell control systems, equipment productivity levels, and process-quality controls. The result of establishing integrated systems has permitted improved customer service from the initial proposition phas... 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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