We propose a top-down approach, called supervisor localization, to distributed control of large-scale discrete-event systems (DES). The essence of this approach is to allocate, or localize, ‘external’ supervisory control action to individual plant components as their ‘internal’ control strategies. To cope with state explosion of large DES, we develop a decomposition-aggregation procedure that employs a flexible decentralized and hierarchical architecture which reduces computational effort in localization. This procedure is demonstrated in detail on a benchmark Production Cell that has state size of order 10 8 .
['Kai Cai', 'W. M. Wonham']
Supervisor localization for large-scale discrete-event systems