Production cell information system based on activity costs and an architecture therefor

  • US 6,976,033 B2
  • Filed: 04/10/2002
  • Issued: 12/13/2005
  • Est. Priority Date: 04/10/2002
  • Status: Expired due to Fees
First Claim
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1. A production cell information system performing functions based on activity costs, wherein a factory is divided into a plurality of production cells, and the production in said factory is controlled and monitored merely by a factory manager through a user interface, and each of said production cells includes said production cell information system used for controlling a plurality of equipments belonging thereto, said production cell information system comprising:

  • a cell controller used for executing at least one function originally existing in a MES (Manufacturing Execution system), and a cost evaluation, wherein said MES alone is originally used to controlling all the equipments currently belonging to said production cells, said cost evaluation further comprising;

    starting said cost evaluation;

    assigning a plurality of physical resources to said production cell;

    identifying a plurality of controllable resource targets from said production cell;

    choosing a plurality of possible activities from said production cell;

    assigning a plurality of indicators under a plurality of objectives;

    linking said plurality of controllable resource targets, said plurality of possible activities and said plurality of objectives;

    registering said plurality of equipments with a plurality of characteristics, wherein said plurality of characteristics are obtained from said plurality of indicators;

    automatically collecting said plurality of characteristics from said plurality of equipments;

    classifying said plurality of characteristics and calculating a plurality of indicator values of said plurality of characteristics;

    feeding said plurality of indicator values back to said plurality of physical resources pre-assigned;

    evaluating the actual costs of said plurality of physical resources, and generating a conclusion reflecting the cost and efficacy of said each of said production cells;

    determining if said conclusion has achieved the objectives of said each of said production cells, wherein if said conclusion is not sure about whether the objective of said each of said production cells have been achieved, returning to said step of choosing said plurality of possible activities from said production cell;

    modifying a plurality of strategies, wherein if said conclusion indicates that the objectives of said each of said production cells have not been achieved, first returning to said step of modifying said plurality of strategies, then returning to said step of identifying said plurality of controllable resource targets from said production cell; and

    ending said cost evaluation, wherein if said conclusion indicates that the objectives of said each of said production cells have been achieved, performing said step of ending said cost evaluation;

    an equipment manager, wherein said equipment manager further comprises;

    a configuration control subsystem and a plurality of equipment drivers;

    a data service means, wherein said data service means further comprises;

    a local database and an objective database; and

    a web server, wherein said web server further comprises a web service subsystem.

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