Scenario-Based Behavioral Nonexistent Consistency Checking for Cyber-Physical Systems

Yan Zhang, Xiangwei Liu, Jin Shi, Tian Zhang, Zhuzhong Qian
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引用次数: 1

Abstract

Cyber-Physical Systems (CPS) play an important role in the safety-critical systems. It is very significant to verify whether some concerned behaviors exist in a CPS. Hybrid interface automata, extension of a non-hybrid version, are used to model a CPS. A scenario, described by MARTE sequence diagram, specifies the concerned behaviors. An algorithm is given for bounded checking the behavioral nonexistent consistency, namely, the behaviors specified by a scenario all do not exist in a hybrid interface automaton. The idea of the algorithm is, firstly, encoding the behavioral nonexistent consistency to an unconstrained dynamic programming, secondly, solving the unconstrained dynamic programming by a genetic algorithm. The algorithm can search the results on the real domain, and be applied to nonlinear as well as linear hybrid systems.
基于场景的网络物理系统不存在行为一致性检查
信息物理系统(CPS)在安全关键系统中起着重要作用。验证CPS中是否存在相关行为具有重要意义。混合接口自动机是对非混合版本的扩展,用于对CPS建模。由MARTE序列图描述的场景指定了相关的行为。给出了一种行为不存在一致性的有界检查算法,即在混合接口自动机中,场景指定的行为都不存在。该算法的思想是,首先将行为不存在的一致性编码为无约束动态规划,然后用遗传算法求解无约束动态规划。该算法可以在实域上搜索结果,适用于非线性和线性混合系统。
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