Generation of safe plant operation sequences using reachability analysis

Cochard, Thomas; Gouyon, David; Pétin, Jean-François

doi:10.1109/etfa.2015.7301458

Cited by 3 publications

(7 citation statements)

References 24 publications

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“…Another major problem in using reachability analysis is the risk of combinatorial explosion that often occurs when verifying large-scale models, as shown by previous preliminary work on the feasibility of generating action sequences [39]. The fact that the systems covered are very large justifies the use of different levels of abstraction to progressively construct action sequences through iterative refinement.…”

Section: Conclusion and Open Issuesmentioning

confidence: 99%

Architecture assessment for safety critical plant operation using reachability analysis of timed automata

Gouyon

Pétin

Cochard

et al. 2020

Reliability Engineering & System Safety

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This article deals with the validation of critical industrial process architectures from the point of view of safety and operation. During the engineering phases, the objective is to complement conventional safety studies with an approach that focuses on plant operation. In this context, one of the major challenges is to provide a guarantee that the designed architecture will be able to react safely to critical situations and events. To face the complexity resulting from the large number of functionalities and devices of the installations under consideration, the proposed approach is based on dynamic models of architectures, using the formalism of timed automata and reachability analysis to verify that, given a particular configuration of an architecture, the process can be safely operated to achieve a given objective. The result is a formal tool that allows engineers and plant operators to evaluate architecture safety with different types of dysfunctional scenarios based on their operational safety expertise. The article presents the formal modelling framework, which emphasizes structured modelling using patterns to promote reuse and instantiation over several candidate architectures. The contribution is illustrated and discussed using an experimental laboratory platform.

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Section: Conclusion and Open Issuesmentioning

confidence: 99%

Architecture assessment for safety critical plant operation using reachability analysis of timed automata

Gouyon

Pétin

Cochard

et al. 2020

Reliability Engineering & System Safety

Self Cite

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show abstract

“…Among the languages used in operation modelling and synthesis ( [10], [5], [7], [11]), timed automata, introduced in [3], have been chosen by [8] and [1] for their formal definition. Timed automata can be defined by a 9-uplet…”

Section: Existing Approaches For Iterative Procedures Modelling Anmentioning

confidence: 99%

“…Using timed automata, [1] recently proposed to evaluate the feasibility of an approach to automatically generate safe action sequences. An action sequence, included in a procedure, is a set of actions to perform on the process, whether automatic controls or manual operations by field agents.…”

Section: Existing Approaches For Iterative Procedures Modelling Anmentioning

confidence: 99%

“…This may be aided using formal generation or verification processes. Focusing on action sequences, which are part of operating procedures, [1] showed, on the one hand, the feasibility of an automatic approach for the generation of safe sequences based on reachability analysis, but, one the other hand, put also in evidence some limitations related to scalability, mainly due to combinatorial explosion. The considered action sequences consist in sets of ordered actions.…”

Section: Introductionmentioning

confidence: 99%

“…This article addresses the scalability issue highlighted in [1]. It proposes an iterative modelling and generation approach of safe action sequences.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Generation of safe operation sequences using iterative refinements and abstractions of timed automata

Cochard

Gouyon

Pétin

2016

2016 IEEE 21st International Conference on Emerging Technologies and Factory Automation (ETFA)

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The main objective of operation procedure engineering for complex and critical systems is to provide action sequences satisfying safety requirements specifications. A classical limit of the use of formal generation approaches for this purpose is the combinatorial explosion due to the size and the number of required models. This article addresses this issue by proposing an iterative approach for the generation of safe operation sequences, using timed automata, and based on reachability analysis. The originality of this approach is to combine a bottom-up framework to build progressively system models by abstraction, and a top-down iterative action sequence generation.

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Safe operation sequences: a generation approach based on iterative refinements and abstractions of timed automata

2017

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Generation of safe plant operation sequences using reachability analysis

Cited by 3 publications

References 24 publications

Architecture assessment for safety critical plant operation using reachability analysis of timed automata

Architecture assessment for safety critical plant operation using reachability analysis of timed automata

Generation of safe operation sequences using iterative refinements and abstractions of timed automata

Safe operation sequences: a generation approach based on iterative refinements and abstractions of timed automata

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