Check schedule determination

In a check schedule decision method, after simulating the production line to produce a time-varying number of in-process workpieces in a designated process unit, a check-available time period for the designated process unit is detected based on a comparison of the time-varying number of in-process w...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAKO SAKAKIBARA, YUKIHIRO MURAOKA, YOICHI TOGASHI
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING CONVEYING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ELECTRIC DIGITAL DATA PROCESSING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HANDLING THIN OR FILAMENTARY MATERIAL MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PACKING PERFORMING OPERATIONS PHYSICS PNEUMATIC TUBE CONVEYORS REGULATING SHOP CONVEYOR SYSTEMS STORING SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING TRANSPORTING
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Beschreibung
Zusammenfassung:	In a check schedule decision method, after simulating the production line to produce a time-varying number of in-process workpieces in a designated process unit, a check-available time period for the designated process unit is detected based on a comparison of the time-varying number of in-process workpieces to a predetermined level. Further, the production line is simulated under a constraint that the designated process unit is stopped operating during the check-available time period to produce a simulated output of the production line being simulated. When the simulated output is not smaller than a predetermined target figure, a check schedule of the designated process unit is decided within the check-available time period.