Abstract
Consider an event alphabet Σ. The supervisory control theory of Ramadge and Wonham asks the question: given a plant model G with language LM(G) ⊆ Σ* and another language K ⊆ LM( G), is there a supervisor such that LM (/G) = K? Ramadge and Wonham showed that a necessary condition for this to be true is the so-called controllability of with respect to Lm (G). They showed that when G is a finite-state automaton and K is a regular language (also generated by a finite state automaton), then there is a regular supremal controllable sublanguageC ⊆ (K) that is effectively constructable from generators of K and G. In this paper, we show: 1) there is an algorithm to compute the supremal controllable sublanguage of a prefix closed K accepted by a deterministic pushdown automaton (DPDA) when the plant language is also prefix closed and accepted by a finite state automaton and 2) in this case, we show that this supremal controllable sublanguage is also accepted by a DPDA.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 826-829 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Automatic Control |
| Volume | 53 |
| Issue number | 3 |
| DOIs | |
| State | Published - Apr 2008 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Computer Science Applications
- Electrical and Electronic Engineering