| 摘要 |
The present invention is directed to a method and system for identifying, quantifying and presenting to a user constraints in an automated manufactur ing or processing facility. A data processing system continuously receives b asic status signals and state signals from automation equipment in the facil ity and evaluates and processes these signals to derive a throughput capabil ity measure (a measure of constraint) of each given manufacturing workstatio n in the process. The throughput capability measure is expressed as a ratio of an ideal cycle time to an accumulated overcycled time. The accumulated ov ercycled time includes only delays and excludes any speed-up of a workstatio n. A constraint is identified as the workstation that has the lowest through put capability measure as compared with all other workstations in a producti on line. Preferably, throughput capability measures for all workstations are presented to users graphically. Further drill-down can be provided for obta ining more detailed information about the constraint and capacity loss as we ll as entering information relevant to the constraint, such as a stoppage or slow-down.
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