Hierarchical control of timed discrete-event systems

Research paper by K. C. Wong, W. M. Wonham

Indexed on: 01 Jul '96Published on: 01 Jul '96Published in: Discrete Event Dynamic Systems


An abstract hierarchical control theory is developed for a class of timed discrete-event systems (TDES) within the discrete-event control architectural framework proposed earlier by the authors. For this development, a control theory for TDES is introduced in the spirit of a prior theory of Brandin. A notion of time control structures is introduced, and on its basis a general property of hierarchical consistency is achieved by establishing control consistency — namely preservation of time control structures through the aggregation mapping in a two-level hierarchy.