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Non-fragile synchronous control method and device for traffic system

A traffic system, synchronous control technology, applied in traffic control system, road vehicle traffic control system, general control system, etc., can solve the problem that the control method is not applicable to the actual traffic system, and the control input is not considered to be limited by the saturation factor. There are problems such as perturbation in the gain, so as to improve the ability to resist unexpected accidents, improve smooth operation, and expand the scope of application

Active Publication Date: 2021-07-16
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the traffic system control method in the prior art does not take into account the situation that the control input is limited by the saturation factor and the controller gain is perturbed, so the control method is not applicable to the actual traffic system

Method used

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  • Non-fragile synchronous control method and device for traffic system
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  • Non-fragile synchronous control method and device for traffic system

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Embodiment 1

[0098] like figure 1 Shown, a kind of non-fragile synchronization control method of traffic system, described method comprises:

[0099] Step S1: Considering the accident situation, according to the road condition information of the existing traffic system and based on the stochastic theory, a Markov stochastic switching system state-space model of the actual traffic system is established; figure 2 As shown, the specific process is:

[0100] by formula

[0101] Establish a Markov random switching system state space model of the actual traffic system, where x re (t) represents the number of vehicles in the actual traffic system, and Indicates that the nth x The number of vehicles on the road, () T represents the transpose symbol; for n w dimensional time-varying nonlinear vector function, which represents sudden accidents or external disturbances that affect the smoothness of the road; A(r(t)) is the system state matrix; D(r(t)) is the disturbance input matrix; r(t)...

Embodiment 2

[0189] Corresponding to Embodiment 1 of the present invention, Embodiment 2 of the present invention also provides a non-fragile synchronization control device for a traffic system, the device comprising:

[0190] The traffic system model building module is used to consider the accident situation, and establish the Markov stochastic switching system state space model of the actual traffic system based on the stochastic theory according to the road condition information of the existing traffic system;

[0191] The drive control system building module is used to design the digital traffic command drive control system;

[0192] The error dynamic system building module is used for the state space model of the Markov random switching system based on the actual traffic system and the digital traffic command drive control system, and the measurement output for evaluating the system's ability to resist sudden accidents is introduced to obtain the error dynamic system;

[0193] The clo...

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Abstract

The invention discloses a non-fragile synchronous control method and device for a traffic system, and the method comprises the steps: building a Markov random switching system state space model of an actual traffic system based on a random theory according to the road condition information of an existing traffic system in consideration of an accident situation; designing a digital traffic guidance driving control system; based on the Markov of an actual traffic system, randomly switching a system state space model and a digital traffic command driving control system, and introducing measurement output used for evaluating the sudden accident resistance of the system to obtain an error dynamic system; designing a non-fragile synchronous controller, and obtaining a closed-loop error system based on the non-fragile synchronous controller and the error dynamic system and considering saturation characteristics; adjusting parameters of the non-fragile synchronous controller to enable a closed-loop error system to be stable; the method has the advantages that the method is suitable for an actual traffic system in consideration of the conditions that control input is limited by saturation factors and controller gain perturbation exists.

Description

technical field [0001] The invention relates to the field of artificial intelligence and control, and more specifically to a method and device for non-fragile synchronization control of a traffic system. Background technique [0002] Traffic congestion is an important problem facing most cities today, especially during morning and evening peak hours, when there is a large amount of traffic near shopping malls, schools, and train stations, and traffic accidents are prone to occur, further aggravating vehicle congestion. With the rise of intelligent control theory and digital twin technology, synchronous control technology has been widely used in many fields such as industrial production, remote operation and military operations. Building a digital twin traffic command and control system, using the digital system to command the synchronous control technology of the actual traffic system is playing an increasingly important role in the operation control of the modern traffic sy...

Claims

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Application Information

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IPC IPC(8): G05B13/04G08G1/01
CPCG05B13/042G08G1/0104
Inventor 纪文强邱剑彬顾军华刘照虹姜冲赵翊玮
Owner HEBEI UNIV OF TECH