op_observercomputation.h File Reference

Methods to compute natural projections that exhibit the observer property. More...

#include "corefaudes.h"
#include "op_debug.h"
#include <map>
#include <vector>
#include <stack>

Go to the source code of this file.

Classes
class	faudes::EventRelabelMap
	Rti convenience wrapper for relabeling maps. More...

Namespaces
	faudes
	libFAUDES resides within the namespace faudes.

Functions
void	faudes::calculateDynamicSystemClosedObs (const Generator &rGen, EventSet &rHighAlph, Generator &rGenDyn)
	Computation of the dynamic system for Delta_sigma (reachable states after the occurrence of one high-level event). More...
void	faudes::calculateDynamicSystemObs (const Generator &rGen, EventSet &rHighAlph, Generator &rGenDyn)
	Computation of the dynamic system for Delta_obs (local reachability of a marked state). More...
void	faudes::calculateDynamicSystemMSA (const Generator &rGen, EventSet &rHighAlph, Generator &rGenDyn)
	Computation of the dynamic system for Delta_msa (local fulfillment of the msa-observer property). More...
bool	faudes::recursiveCheckMSAForward (const Generator &rGen, const EventSet &rHighAlph, Idx currentState, StateSet &rDoneStates)
	Check if the msa-observer conditions is fulfilled for a given state. More...
bool	faudes::recursiveCheckMSABackward (const Generator &rGen, const TransSetX2EvX1 &rRevTransSet, const EventSet &rHighAlph, Idx currentState, StateSet &rDoneStates)
	Check if the msa-observer conditions is fulfilled for a given state. More...
void	faudes::calculateDynamicSystemLCC (const Generator &rGen, const EventSet &rControllableEvents, const EventSet &rHighAlph, Generator &rGenDyn)
	Computation of the dynamic system for Delta_lcc (fulfillment of the local control consistency property). More...
void	faudes::recursiveCheckLCC (const TransSetX2EvX1 &rRevTransSet, const EventSet &rControllableEvents, const EventSet &rHighAlph, Idx currentState, StateSet &rDoneStates)
	Find states that fulfill the lcc condition. More...
Idx	faudes::calcClosedObserver (const Generator &rGenObs, EventSet &rHighAlph)
	L(G)-observer computation by adding events to the high-level alphabet. More...
Int	faudes::calcNaturalObserver (const Generator &rGenObs, EventSet &rHighAlph)
	Lm(G)-observer computation by adding events to the high-level alphabet. More...
Int	faudes::calcNaturalObserverLCC (const Generator &rGen, const EventSet &rControllableEvents, EventSet &rHighAlph)
	Lm(G)-observer computation including local control consistency (LCC) by adding events to the high-level alphabet. More...
Int	faudes::calcMSAObserver (const Generator &rGen, EventSet &rHighAlph)
	MSA-observer computation by adding events to the high-level alphabet. More...
Int	faudes::calcMSAObserverLCC (const Generator &rGen, const EventSet &rControllableEvents, EventSet &rHighAlph)
	MSA-observer computation including local control consistency (LCC) by adding events to the high-level alphabet. More...
FAUDES_API void	faudes::ExtendHighAlphabet (const Generator &rGenObs, EventSet &rHighAlph, std::map< Idx, Idx > &rMapStateToPartition)
	Extension of the high-level alphabet to achieve the Lm-observer property. More...
FAUDES_API bool	faudes::CheckSplit (const Generator &rGenObs, const EventSet &rSplitAlphabet, const std::vector< std::pair< StateSet, Idx > > &rNondeterministicStates, Idx entryState)
	Check if the current alphabet splits all local automata with nondeterminims or unobservable transitions. More...
FAUDES_API void	faudes::calcAbstAlphClosed (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	L(G)-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphClosed (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	L(G)-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphClosed (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Transition, Idx > &rMapChangedTrans)
	L(G)-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphObs (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	Lm-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphObs (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	Lm-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphObs (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Transition, Idx > &rMapChangedTrans)
	Lm-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphMSA (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	MSA-observer computation. More...
void	faudes::calcAbstAlphMSA (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	MSA-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphMSA (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Transition, Idx > &rMapChangedTrans)
	MSA-observer computation. More...
FAUDES_API void	faudes::calcAbstAlphObsLCC (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	Lm-observer computation including local control consistency (LCC). More...
FAUDES_API void	faudes::calcAbstAlphObsLCC (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Transition, Idx > &rMapChangedTrans)
	Lm-observer computation including local control consistency (LCC). More...
FAUDES_API void	faudes::calcAbstAlphMSALCC (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	MSA-observer computation including local control consistency (LCC). More...
FAUDES_API void	faudes::calcAbstAlphMSALCC (Generator &rGenObs, EventSet &rControllableEvents, EventSet &rHighAlph, EventSet &rNewHighAlph, std::map< Transition, Idx > &rMapChangedTrans)
	MSA-observer computation including local control consistency (LCC). More...
bool	faudes::relabel (Generator &rGenRelabel, EventSet &rControllableEvents, EventSet &rHighAlph, std::map< Idx, Idx > &rMapStateToPartition, std::map< Transition, Transition > &rMapChangedTransReverse, std::map< Transition, Idx > &rMapChangedTrans, std::map< Idx, EventSet > &rMapRelabeledEvents)
	Relabeling algorithm for the computation of an Lm-observer. More...
FAUDES_API void	faudes::insertRelabeledEvents (System &rGenPlant, const std::map< Idx, std::set< Idx > > &rMapRelabeledEvents, Alphabet &rNewEvents)
	Convenience function for relabeling events in a given generator. More...
FAUDES_API void	faudes::insertRelabeledEvents (Generator &rGenPlant, const std::map< Idx, std::set< Idx > > &rMapRelabeledEvents, EventSet &rNewEvents)
	Convenience function for relabeling events in a given generator. More...
FAUDES_API void	faudes::insertRelabeledEvents (System &rGenPlant, const std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	Convenience function for relabeling events in a given generator. More...
void	faudes::insertRelabeledEvents (Generator &rGenPlant, const std::map< Idx, std::set< Idx > > &rMapRelabeledEvents)
	Convenience function for relabeling events in a given generator. More...
void	faudes::calcAbstAlphObs (System &rGenObs, EventSet &rHighAlph, EventSet &rNewHighAlph, EventRelabelMap &rMapRelabeledEvents)
	Rti convenience wrapper. More...
void	faudes::insertRelabeledEvents (Generator &rGenPlant, const EventRelabelMap &rMapRelabeledEvents, EventSet &rNewEvents)
	Rti convenience wrapper. More...
void	faudes::insertRelabeledEvents (Generator &rGenPlant, const EventRelabelMap &rMapRelabeledEvents)
	Rti convenience wrapper. More...

Detailed Description

Methods to compute natural projections that exhibit the observer property.

Methods to compute natural projections that exhibit the obsrver property.

The observer algorithm is elaborated in K. C. Wong and W. M. Wonham, "On the Computation of Observers in Discrete Event Systems," Discrete Event Dynamic Systems, vol. 14, no. 1, pp. 55-107, 2004. In addition, methods to compute natural projections that exhibit output control consistency (OCC) and local control consistency (LCC) are provided. See for example K. Schmidt and C. Breindl, "On Maximal Permissiveness of Hierarchical and Modular Supervisory Control Approaches for Discrete Event Systems," Workshop on Discrete Event Systems, 2008. Furthermore, an algorithm for computing natural observers without changing event labels as presented in Lei Feng; Wonham, W.M., "On the Computation of Natural Observers in Discrete-Event Systems," Decision and Control, 2006 45th IEEE Conference on , vol., no., pp.428-433, 13-15 Dec. 2006 is implemented.

The observer algorithm is elaborated in K. C. Wong and W. M. Wonham, "On the Computation of Observers in Discrete Event Systems," Discrete Event Dynamic Systems, vol. 14, no. 1, pp. 55-107, 2004. and the natural observer algorithm is presented in Feng, Lei and Wonham, W., "On the Computation of Natural Observers in Discrete-Event Systems", Discrete Event Dynamic Systems, 2009. In addition, methods to compute natural projections that exhibit output control consistency (OCC) and local control consistency (LCC) are provided. See for example K. Schmidt and C. Breindl, "On Maximal Permissiveness of Hierarchical and Modular Supervisory Control Approaches for Discrete Event Systems," Workshop on Discrete Event Systems, 2008.

Definition in file op_observercomputation.h.