Networked control system scheduling method based on game theory

Abstract

The invention discloses a networked control system scheduling method based on a game theory. Steps of the networked control system scheduling method based on the game theory are that a non-cooperative game model of the networked control systems (NCSs) is structured; utility functions of each control loop in NCSs are confirmed; a optimal scheduling strategy is searched; existence and uniqueness of a Nash Equilibrium point is analyzed; the Nash Equilibrium point is solved by utilizing a hybrid adaptive genetic algorithm; a scheduler of the NCSs distributes network resources to each control loop again according to the optimal scheduling strategy of the Nash Equilibrium point. A scheduling mechanism of existing network resources is not depended on by utilizing the networked control system scheduling method based on a game theory. The networked control system scheduling method based on the game theory provides evidences for optimization of network service. The network resources can be used fully. Fair and reasonable competition of each control loop can be ensured. Phenomenon which resources are distributed too much or too little can be avoided. Network resources utilization rate can be improved in a certain degree.

Description

technical field [0001] The invention belongs to the technical field of network control systems, and relates to a network resource scheduling method. More specifically, the invention relates to a game theory-based network control system scheduling method. Background technique [0002] With the widespread application of computer network technology in the field of automatic control, a new networked, intelligent node, integrated information, and distributed control system—Networked Control Systems (NCSs) emerged as the times require. . Networked control meets the objective requirements of complex large-scale system control and remote control systems, and is the development direction of future control systems. Since NCSs are systems composed of control and network, their performance depends not only on the control strategy used, but also on the scheduling strategy of information in the network. The scheduling of NCSs is used to specify the order, sending time and time interval ...

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Problems solved by technology

In addition, although the feedback scheduling method based on advanced control theory (such as fuzzy control, predictive control, adaptive control, etc.) can make the control system have high control performance, its network resource utilization is often low

[0006] When designing the resource scheduling method of NCSs, although most of the current studies have combined the control effect and the utilization of shared resources and achieved certain results in this regard, these results are still far from enough to solve the problems of NCSs in practical applications. Therefore, it is still necessary to combine new theoretical knowledge to explore the solution to the network resource scheduling problem

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