The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2003
Filed:
Jan. 19, 2001
Hiroji Ozaki, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A production management system has a plurality of pieces of production apparatus, a production controller connected online to the production apparatus, and a simulator. The simulator performs a simulation of physical distribution for a specified period of time through use of a simulation parameter, apparatus information, and process information, which are acquired from the production controller. A re-simulation of physical distribution is performed while taking, as parameters for optimizing physical distribution, time-series data pertaining to the availability factor of each apparatus and the load factor of each apparatus obtained as a result of the simulation, as well as the start and termination times of an event which is to arise in the period of a simulation. A dispatch rule set for each apparatus or a group of pieces of apparatus having a single function is dynamically changed, thus feeding back the change to control of real physical distribution.