Distributed adaptive control of production scheduling and machine capacity

Reducing myopic behavior in FMS control: A semi-heterarchical simulation–optimization approach

“…However, maintenance (Gao et al, 2006), inventory (Hnaien et al, 2010) and capacity (Cho and Prabhu, 2007) are other control problems, strongly related to manufacturing that are dealt at the operational level. Henceforth, this work focuses on manufacturing control.…”

Analysis of dynamic due-date assignment models in a flexible manufacturing system

“…Critical ratio (CR) is computed as CR = duedate of part − current time remaining processing time of part (16) Thus, the CRSPT rule can be expressed as…”

“…In either case, tight due-dates and on-time completion of parts are challenges to the scheduler. This can be met through better scheduling and due-date management at the operational level [15,16]. Due-date performance can be assessed using measures such as mean tardiness and percentage of tardy parts.…”

Hierarchical control of production flow based on capacity allocation for real-time scheduling of manufacturing systems

“…Particularly, in scheduling problems, the objective is to find a way to assign and sequence the use of shared resources such that production constraints are satisfied. Although traditionally addressed by: management science, operation research and industrial engineering, its complexity and importance have concentrated the efforts of different research communities, concerned with artificial intelligence [10], dynamic programming, system simulation [9] [11] and control theory [4][8] [19] [22].…”

“…Indeed, at the control level, the capacity allocation problem is approached from the control theory viewpoint [4][8] [19] [22]. The problem is considered as a regulation of flow of parts by adjusting the machine's processing rates.…”