Path scheduling and controller collaborative design method of multipath communication networked control system

A technology of networked control and collaborative design, applied in transmission systems, digital transmission systems, data exchange networks, etc., to solve the compensation problem and improve the utilization rate

Active Publication Date: 2019-03-29
ZHEJIANG UNIV OF TECH
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Problems solved by technology

However, the existence of multipath routing brings new opportunities

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  • Path scheduling and controller collaborative design method of multipath communication networked control system
  • Path scheduling and controller collaborative design method of multipath communication networked control system
  • Path scheduling and controller collaborative design method of multipath communication networked control system

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Embodiment Construction

[0069] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and simulation data.

[0070] The present invention provides the following solutions for solving the above-mentioned technical problems: a method for path scheduling and controller collaborative design based on a multi-path communication networked control system is designed. Its working principle is as follows: first establish a model for the networked control system and simulate the actual network situation; then consider the time-varying delay in the network environment into the switching characteristics between system models; further use the method of collaborative design to design the controller And the design of multi-path routing scheduling scheme.

[0071] The specific implementation steps are as follows:

[0072] Step 1) Suppose the system h...

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Abstract

The invention provides a path scheduling and controller design method of a networked control system based on multipath routing. The path scheduling and controller design method of the networked control system based on the multipath routing comprises the following steps: establishing a state space model for the networked control system, and establishing a switching system model based on delay considering a time-varying delay model caused by path switching; designing and using a cone complement linearization algorithm to solve a control gain of a subsystem according to a switching subsystem model; giving the design of a path scheduling scheme and calculating a path cost value of the network; and using a branch and bound method to design specific parameters of the scheduling scheme combined with the path cost value and the control gain of the subsystem.

Description

technical field [0001] The invention relates to a path scheduling and controller collaborative design method of a multipath communication networked control system. Background technique [0002] In the networked control system, the information transmission between sensors, controllers and actuators is often carried out through the data communication network, which brings the advantages of low cost, high flexibility and simple maintenance to the networked control system. However, unlike the traditional control system that assumes no loss in information transmission, the data communication network brings problems such as network-induced delay, packet loss, and out-of-sequence of data packets, which greatly affect system performance and even cause system failure. Stability poses many new challenges to system design and analysis. How to deal with network-induced delays has become a key point in the research of networked control systems and has received extensive attention. [0...

Claims

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Application Information

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IPC IPC(8): H04L12/727H04L12/709H04L12/24H04L45/121H04L45/243
CPCH04L41/142H04L41/145H04L45/121H04L45/24
Inventor 赵云波姚俊毅
Owner ZHEJIANG UNIV OF TECH
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