Control system and methods for managing a production...

Details Control system and methods for managing a production... Control system and methods for managing a production...

2006-05-30

2006-05-30

Patel, Ramesh (Department: 2121)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S097000, C700S099000, C700S101000, C700S102000, C700S103000, C700S108000, C700S121000

Reexamination Certificate

active

07054703

ABSTRACT:
A control system for a production process having a plurality of operations. A plurality of time constraints exist between the operations. The control system includes a control module that defines a plurality of sub-time constraints between each two operations, generates a plurality of equations according to the time constraints and the sub-time constraints, and calculates the sub-time constraints using the equations. The control module then determines whether a status for each operation defined according to a Work-In-Process (WIP) quantity between a first operation and a checked operation and a throughput rate thereof violates sub-time constraints between the first operation and the checked operation, and releases a lot into the production line if the status for each operation satisfies the corresponding sum of the sub-time constraints.

REFERENCES:
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patent: 5748478 (1998-05-01), Pan et al.
patent: 5838565 (1998-11-01), Hsieh et al.
patent: 5880960 (1999-03-01), Lin et al.
patent: 6687563 (2004-02-01), Wang et al.
patent: 6714830 (2004-03-01), Browning
patent: 2003/0200130 (2003-10-01), Kall et al.

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