1.

Record Nr.

UNINA990000338140403321

Autore

Burmeister, Hermann

Titolo

Nichtmetallische Werkstoffe / Von Hermann Burmeister

Pubbl/distr/stampa

Leipzig : C.F. Winter'sche Verlagshandlung, 1943

Descrizione fisica

XI,305 p., 24 cm

Collana

Lehrbucher der fien werktechnik ; band 10

Disciplina

668

Locazione

DINCH

Collocazione

04 186-351

Lingua di pubblicazione

Italiano

Formato

Materiale a stampa

Livello bibliografico

Monografia

2.

Record Nr.

UNINA9910254197303321

Autore

Cai Kai

Titolo

Supervisor Localization : A Top-Down Approach to Distributed Control of Discrete-Event Systems / / by Kai Cai, W. Murray Wonham

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016

ISBN

3-319-20496-3

Edizione

[1st ed. 2016.]

Descrizione fisica

1 online resource (XV, 199 p. 136 illus., 9 illus. in color.)

Collana

Lecture Notes in Control and Information Sciences, , 0170-8643 ; ; 459

Disciplina

629.8

Soggetti

Automatic control

System theory

Production management

Control and Systems Theory

Systems Theory, Control

Operations Management

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Includes index.



Nota di contenuto

Introduction -- Localization: Fundamental Results -- Localization: Further Results and Examples -- Localization for Large-Scale Systems -- Case Study: Production Cell -- Localization based on State Tree Structures -- Localization of Timed Discrete-Event Systems -- Conclusions -- Appendix A Nerode Equivalence and Canonical Recognizer -- Appendix B NP-Hardness of Minimal-State Localization -- Appendix C Quasi-Congruence of Nondeterministic Generator.

Sommario/riassunto

This monograph presents a systematic top-down approach to distributed control synthesis of discrete-event systems (DES). The approach is called supervisor localization; its essence is the allocation of external supervisory control action to individual component agents as their internal control strategies. The procedure is: first synthesize a monolithic supervisor, to achieve globally optimal and nonblocking controlled behavior, then decompose the monolithic supervisor into local controllers, one for each agent. The collective behavior of the resulting local controllers is identical to that achieved by the monolithic supervisor. The basic localization theory is first presented in the Ramadge–Wonham language-based supervisory control framework, then demonstrated with distributed control examples of multi-robot formations, manufacturing systems, and distributed algorithms. An architectural approach is adopted to apply localization to large-scale DES; this yields a heterarchical localization procedure, which is also demonstrated with benchmark examples. Moreover, a state-based framework, state-tree structures, is exploited for efficient computation of localization. Finally localization is extended to timed DES, which addresses distributed control synthesis with temporal specifications. The authors’ TCT software and sourcecode will help the reader to reproduce the results demonstrated in the examples. Academic researchers and graduate students interested in discrete-event and distributed systems and control will find this book an instructive resource. It will also be useful for researchers in manufacturing, supply-chain and logistics and practitioners in related industries.