Job plan creation system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakashi Yasuma, Hideyuki Tagami, Katsuhiro Ito
Life of this patent
Estimating the term…
Abstract
Provided is a job plan creation system capable of creating an efficient job plan when the job plan is reconfigured on the basis of the progress of the jobs after the completion of the jobs that day and by the job starting time of the following day, for example. A job plan creation system extracts an interrupted job that has been started but has not been completed, a delayed job that should have been started based on the job plan but has not been started, and a not-started job that is scheduled to be started on the job plan and so has not been started from the job plan, and creates the job plan while setting priorities in the order of the interrupted job, the delayed job and the not-started job.
Claims11
A job plan creation system comprising:
- at least one processor configured to:
- create a job plan for each job of a plurality of jobs on a basis of starting states of the jobs;
- extract, out of the job plan, at least one interrupted job that has been started but has not yet been completed, at least one delayed job that should have been started based on the job plan but has not yet been started, and at least one not yet-started job that is scheduled to be started on the job plan and so has not yet been started from the job plan;
- set initial priorities of the jobs in the job plan such that the priorities have a tentative order of the interrupted job(s), the delayed job(s) and the not yet-started job(s);
- determine whether one of the at least one interrupted job should be postponed or not based on a postponement condition;
- and
- when the one of the at least one interrupted job should be postponed:
- (a) divide the one interrupted job into a complete part and a not-completed part, (b) reconfigure the job plan by postponing the operating time of the not-completed part only by a predetermined duration, and (c) control a display to display the reconfigured job plan, wherein the at least one processor is further configured to:
- reconfigure the job plan by reversing the order on the job plan of the not-completed part and another job, which is determined as having a production plan priority that is equal to or lower than a production plan priority of the not-completed part and determined as having a margin for a delivery time compared with the not-completed part, and which is thus determined later as having a production plan priority that is relatively higher than the production plan priority of the not-completed part;
- a central computer, that includes the at least one processor, configured to:
- collectively control an operating state of a plurality of Numerical Control (NC) machine tools disposed along a plurality of processing lines based on the reconfigured job plan.
Dependencies are inferred from the claim text.