Download or read book Formal Synthesis of Safety Controller Code for Distributed Controllers written by Dirk Missal and published by Logos Verlag Berlin GmbH. This book was released on 2012 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern control systems in manufacturing are characterized by rising complexity in size and functionality. They are highly decentralized and constitute a network of physically and functionally distributed controllers collaborating to perform the control tasks. That goes along with a further growing demand on safety and reliability. A distributed control architecture supporting functional decomposition of large systems as well as accommodating flexibility of modular systems is defined. This work describes the formal synthesis of distributed control functions for the sub area of safety requirements. The formal synthesis is applied to avoid the potentially faulty influence of human work through the whole process from the formal specification to the executable control function. Starting points are a formal model of the uncontrolled plant behavior and a formal specification of forbidden behavior. The formulation of the specification and the modeling is exemplified on a manufacturing system in lab-scale. The introduced synthesis methods produce controller models describing the correct control actions to achieve the given specification. The methods use symbolic backward search from a forbidden state to determine the last admissible state before entering an uncontrollable trajectory to a forbidden state. Hence, the determination of the reachable state space is avoided to reduce the computational complexity. The use of partial markings leads to a further reduction. The complexity is an important obstacle for the use of formal methods on real-scale applications. The monolithic synthesis approach is proven to result in maximally permissive results. The modular approach is not maximally permissive but the more efficient way to distributed control functions. The implementation of the generated controller model as executable Function Blocks according to IEC61499 is addressed in the last part of this work. The distributed control predicates are embedded as structured text instruction into different interacting Function Block types according to the distributed control structure. This last step finalizes the sequence from a formal model and the specification to fully automatically-generated executable control code.
Download or read book Technologies for Engineering Manufacturing Systems Control in Closed Loop written by Sebastian Preuße and published by Logos Verlag Berlin GmbH. This book was released on 2013 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diese Arbeit stellt ein Analyserahmenwerk vor, welches zur Uberprufung des korrekten Verhaltens eines technischen Systems eingesetzt wird. Im Fokus steht dabei die praktische Anwendung im industriellen Umfeld. Hierfur werden die verwendeten Formalismen weitestehend durch domanenspezifische Beschreibungsmoglichkeiten substituiert, um somit den Anwender beim Entwurfs- und Analyseprozess zu unterstutzen. Die Arbeit stellt konkrete Techniken vor, um ein formales Anlagenmodell aus bereits vorhandenen Daten zu generieren, um eine formale Spezifikation des Verhaltens des technischen Systems zu erstellen und um das Verhalten des Systems formal zu analysieren. Dabei wird die Steuerungshardware in den Prozess eingebunden und somit die Korrektheit des implementierten Steuerungsprogramms uberpruft. Auf diese Weise lasst sich fehlerhaftes Anlagenverhalten bereits vor der Inbetriebnahme aufdecken und beheben, wodurch die Kosten fur die Fehleranalyse und -korrektur im laufenden Betrieb eingespart werden.
Download or read book Numerical Software Verification written by Sergiy Bogomolov and published by Springer. This book was released on 2017-02-14 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 9th InternationalWorkshop on Numerical Software Verification, NSV 2016, held in Toronto, ON, Canada in July 2011 - colocated with CAV 2016, the 28th International Conference on Computer Aided Verification. The NSV workshop is dedicated to the development of logical and mathematical techniques for the reasoning about programmability and reliability.
Download or read book Coordination Models and Languages written by Eva Kühn and published by Springer. This book was released on 2014-05-22 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 16th International Conference on Coordination Models and Languages, COORDINATION 2014, held in Berlin, Germany, in June 2014. The 12 papers included in this volume were carefully reviewed and selected from 31 submissions. They deal with topics such as programming abstractions and languages, coordination models and paradigms, applied software engineering principles, specification and verification, foundations and types, distributed middleware architectures, multicore programming, collaborative adaptive systems, and coordination related use cases.
Download or read book NASA Formal Methods written by Julia M. Badger and published by Springer. This book was released on 2019-05-28 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 11th International Symposium on NASA Formal Methods, NFM 2019, held in Houston, TX, USA, in May 2019. The 20 full and 8 short papers presented in this volume were carefully reviewed and selected from 102 submissions. The papers focus on formal verification, including theorem proving, model checking, and static analysis; advances in automated theorem proving including SAT and SMT solving; use of formal methods in software and system testing; run-time verification; techniques and algorithms for scaling formal methods, such as abstraction and symbolic methods, compositional techniques, as well as parallel and/or distributed techniques; code generation from formally verified models; safety cases and system safety; formal approaches to fault tolerance; theoretical advances and empirical evaluations of formal methods techniques for safety-critical systems, including hybrid and embedded systems; formal methods in systems engineering and model-based development; correct-by-design controller synthesis; formal assurance methods to handle adaptive systems.
Download or read book NASA Formal Methods written by Kristin Yvonne Rozier and published by Springer Nature. This book was released on 2023-07-04 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 15th International Symposium on NASA Formal Methods, NFM 2023, held in Houston, Texas, USA, during May 16-18, 2023. The 26 full and 3 short papers presented in this volume were carefully reviewed and selected from 75 submissions. The papers deal with advances in formal methods, formal methods techniques, and formal methods in practice.
Download or read book Distributed Computing and Internet Technology written by Raja Natarajan and published by Springer. This book was released on 2015-01-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 11th International Conference on Distributed Computing and Internet Technology, ICDCIT 2015, held in Bhubaneswar, India, in February 2015. The 12 revised full papers presented together with 30 short papers and 9 invited talks in this volume were carefully reviewed and selected from 221 submissions. The papers cover topics such as distributed computing and algorithms; internet technologies and Web services; secure computing and communication; cloud computing; information retrieval and recommender systems and societal applications.
Download or read book Application and Theory of Petri Nets and Concurrency written by Luis Gomes and published by Springer Nature. This book was released on 2023-05-27 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 44th International Conference on Application and Theory of Petri Nets and Concurrency, PETRI NETS 2023, which took place in Lisbon, Portugal, in June 2023. The 21 full papers included in this book were carefully reviewed and selected from 47 submissions. They were organized in topical sections as follows: Process mining; semantics; tools; verification; timed models; model transformation. The book also includes two invited talks in full paper length.
Download or read book NASA Formal Methods written by Ritchie Lee and published by Springer Nature. This book was released on 2020-08-10 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 12th International Symposium on NASA Formal Methods, NFM 2020, held in Moffett Field, CA, USA, in May 2020.* The 20 full and 5 short papers presented in this volume were carefully reviewed and selected from 62 submissions. The papers are organized in the following topical sections: learning and formal synthesis; formal methods for DNNs; high assurance systems; requirement specification and testing; validation and solvers; solvers and program analysis; verification and times systems; autonomy and other applications; and hybrid and cyber-physical systems. *The conference was held virtually due to the COVID-19 pandemic. The chapter “Verifying a Solver for Linear Mixed Integer Arithmetic in Isabelle/HOL” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book Changing the Ways We Work written by Nils Mårtensson and published by IOS Press. This book was released on 1998 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the effects of an increasing use of information technology, IT, in manufacturing. Mainly, focus is on the changes in organisation, in working procedures and in the demands on the capabilities of the personnel, both on the shop floor and the engineering and management levels. It disseminates information from the research and development carried out under ESPRIT's Integration in Manufacturing domain as well as from other activities in similar domains in industry and academia. A particular focus is on giving an overview and resume of work undertaken in the Third and Fourth Research Framework Programmes of ESPRIT.
Download or read book Chemical Process Control VI written by James Blake Rawlings and published by . This book was released on 2002 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM contains: complete contents of this AIChE symposium series volume and an ISO9660 file system with Rock Ridge attributes.
Download or read book Transactions on Foundations for Mastering Change I written by Bernhard Steffen and published by Springer. This book was released on 2016-10-01 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: The LNCS Transactions on Foundations for Mastering Change, FoMaC, aims to establish a forum for formal-methods-based research, dealing with the nature of today’s agile system development, which is characterized by unclear premises, unforeseen change, and the need for fast reaction, in a context of hard-to-control frame conditions, such as third-party components, network problems, and attacks. Submissions are evaluated according to these goals. This book, the first volume in the series, contains contributions by the members of the editorial board. These contributions indicate the envisioned style and range of papers of topics covered by the transactions series. They cross-cut various traditional research directions and are characterized by a clear focus on change.
Download or read book Computer Safety Reliability and Security written by Frank Ortmeier and published by Springer. This book was released on 2012-09-11 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of 5 workshops co-located with SAFECOMP 2012, the 31st International Conference on Computer Safety, Reliability, and Security, held in Magdeburg, Germany, in September 2012. The 49 revised full papers presented were carefully reviewed and selected from numerous submissions. According to the workshops covered, the papers are organized in topical sections on: next generation of system assurance approaches for safety-critical systems (Sassur), architecting safety in collaborative mobile systems (ASCoMS), dependable and secure computing for large-scale complex critical infrastructures (DESEC4LCCI), ERCIM/EWICS/cyberphysical systems (ERCIM/EWICS), and on digital engineering (IWDE).
Download or read book AIChE Symposium Series written by American Institute of Chemical Engineers and published by . This book was released on 1997 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Component Based Software Engineering written by Lars Grunske and published by Springer. This book was released on 2010-06-14 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2010 Symposium on Component-Based Software Engineering (CBSE 2010) was the 13th in a series of successful events that have grown into the main forum for industrial and academic experts to discuss component technology. CBSE is concerned with the development of software-intensive systems from - dependently developed software-building blocks (components), the development of components, and system maintenance and improvement by means of com- nent replacement and customization. The aim of the conference is to promote a science and technology foundation for achieving predictable quality in software systems through the use of software component technology and its associated software engineering practices. In line with a broad interest, CBSE 2010 received 48 submissions. From these submissions, 14 were accepted after a careful peer-review process followed by an online program committee discussion. This resulted in an acceptance rate of 29%. The selected technical papers are published in this volume. For the fourth time, CBSE 2010 was held as part of the conference series: Fed- ated Events on Component-Based Software Engineering and Software Archit- ture (COMPARCH). The federated events were: the 13th International S- posium on Component-Based Software Engineering (CBSE 2010), the 6th - ternational Conference on the Quality of Software Architectures (QoSA 2010), andthe1stInternationalSymposium onArchitecting CriticalSystems(ISARCS 2010). Together with COMPARCH’s Industrial Experience Report Track and the co-located Workshop on Component-Oriented Programming (WCOP 2010), COMPARCH provided a broad spectrum of events related to components and architectures.
Download or read book Computer Control Abstracts written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Official Gazette of the United States Patent Office written by United States. Patent Office and published by . This book was released on 1969 with total page 2180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
