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Event trigger control method and system

A technology of event triggering and control methods, applied in the field of cyber-physical systems, can solve problems such as economic loss, stability damage, and system performance degradation, and achieve the effects of reducing network load, stabilizing the mean square index, and saving system resources

Pending Publication Date: 2022-02-18
QUFU NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In cyber-physical systems, controllers and sensors communicate through networks, however, due to more open and shared networks and communications, cyber-physical systems become more sensitive to external environmental influences, especially they are vulnerable to malicious cyber attacks, Decrease system performance and destroy stability
Moreover, cyber-physical systems are usually used in many critical large-scale infrastructures, and the occurrence of malicious cyber attacks may threaten national security and social stability, causing huge economic losses

Method used

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  • Event trigger control method and system

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Embodiment Construction

[0036] Specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0037]Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0038] Such as figure 1 As shown, an event-triggered control method disclosed in the present invention includes the following steps:

[0039] S100, based on the fact that the handover cyber-physical system receives multiple different forms of random network attacks, establish a handover cyber-physical system model.

[0040] Specifically, in this step, switching the cyber-physical system Σ is specifically:

[0041]

[0042] where x(t)∈R n ,u(t)∈R m Represent the state an...

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Abstract

The invention discloses an event trigger control method and system. The method comprises the following steps: building a switching cyber-physical system model based on a switching cyber-physical system receiving various random network attacks in different forms; transmitting data by using an event trigger control method; and designing a switching signal and designing a state feedback controller by adopting a mode-dependent average residence time method. The invention provides the event trigger control method for switching the cyber-physical system under the random network attack, so that the performance of the cyber-physical system is improved under the condition that the cyber-physical system is influenced by the random network attack.

Description

technical field [0001] The present invention relates to the technical field of cyber-physical systems, in particular to an event-triggered control method and system for switching cyber-physical systems subject to random network attacks. Background technique [0002] In recent years, with the rapid development of computing, communication, and intelligent control technologies, cyber-physical systems have realized on-demand response and dynamic optimization of resource allocation and operation due to the interaction and coordination of various elements in physical space and cyberspace. Systematic research has become a hot issue. In addition, the stability analysis and control synthesis of switched systems has attracted widespread attention and achieved fruitful results because of its practical value. Because the switched system is a hybrid system and has the characteristics of being able to approximate complex nonlinear processes, it can be used to describe and model the behav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/40H04L41/14
CPCH04L63/1416H04L63/1441H04L41/145
Inventor 侯林林罗文德孙海滨杨东
Owner QUFU NORMAL UNIV
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