Dynamic scheduling

Details Dynamic scheduling Dynamic scheduling

1992-07-27

1993-05-18

Heckler, Thomas M.

Boots, shoes, and leggings

395904, 395926, 395912, 395919, 364DIG1, 364DIG2, G06F 1520, G06F 1546

Patent

active

052127915

ABSTRACT:
The invention provides a new production scheduling system. The system includes a technique that utilizes a knowledge base system to dynamically schedule production of parts on a plurality of manufacturing machines. The schedule is updated dynamically to conserve synergism with the changing plant environment. The schedule is created to conform with predefined rules to conserve constraints imposed by the machinery to create parts of different specifications. The rules may be hard in that they may be specifiable in mathematical terms or they may be heuristic and soft in that they may be allowed to be relaxed as determined by operators who have learned from experience with the production machinery. Finally, the invention allows interactive monitoring and adjustment of the schedule by an operator including selective seeding of the schedule.

REFERENCES:
patent: 4209898 (1980-07-01), Acki et al.
patent: 4561201 (1985-12-01), Sanborn
patent: 4617638 (1986-11-01), Krause et al.
patent: 4711543 (1987-12-01), Blair et al.
patent: 4746995 (1988-05-01), Rauskolb
patent: 4994980 (1991-02-01), Lee et al.
patent: 5040123 (1991-08-01), Barber et al.
Lee, J. K. and Suh, M. S. "PAMS-A Domain-Specific Knowledge-based parallel Machine Scheduling System". Expert Systems, vol. 5, No. 3, (Aug. 1988), pp. 198-214.
T. J. Williams, "Recent Developments In The Application Of Plant-Wide Computer Control" Computers In Industry vol. 8, No. 2 pp. 233-254 Mar. 1987.
M. J. Shaw and C. M. Morley, "A Knowledge Based Dynamic Scheduler In Distributed Computer Control" Proceedings of ISA/88 International Conference and Exhibit Oct. 1988.
M. Numao and S. Morishita, "Scheplan-A Scheduling Expert For Steel-Making Process" IEEE Transactions Jun. 1988.
"An Expert System For Scheduling In A Flexible Manufacturing System", B. Sauve, et al., Robotics and Computer Integrated Manufacturing, vol. 3, No. 2, 1987, Elmsford, NY, pp. 229-233.
"Evaluation of Traditional Work Scheduling Rules In A Flexible Manufacturing System With A Physical Simulator", R. Choi, et al., Journal of Manufacturing Systems, vol. 7, No. 1, 1988, pp. 33-45, Dearborn, Michigan.
"PAMS: A Domain Specific Knowledge Based Parallel Machine Scheduling System", J. K. Lee, et al., Expert Systems, vol. 5, No. 3, 1988, Oxford GB, pp. 198-214.

Affiliated with

Also associated with

Rating

Dynamic scheduling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic scheduling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic scheduling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-810082