Network delay compensation method between transmitter node and (control) actuator node

A technology of network delay and compensation method, which is applied in the interdisciplinary field of multiple disciplines, can solve problems such as errors in network delay estimation or identification, reduce the impact of delay system stability, large economic investment, etc., to improve control quality, The effect of avoiding node clock signal synchronization and avoiding estimation errors
CN101995871AInactive Publication Date: 2011-03-30HAINAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
HAINAN UNIVERSITY
Publication Date
2011-03-30
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a network delay compensation method between a transmitter node and a (control) actuator node, and belongs to the technical field of network control systems. In the method, an actual network data transmission process between the transmitter node and the (control) actuator node is used for substituting a network delay compensation model of the process, so that measurement and estimation or identification of network data transmission delay between nodes and requirements on node clock signal synchronization are eliminated. By the method, the influence of delay on stability of a time system can be reduced and the control performance quality of the system can be improved. The method is suitable for delay dynamic compensation and control of a network control system in which a controlled object mathematic model is known, the network only exists between the transmitter node and the (control) actuator node and a certain number of data packets are lost in the network.
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Description

technical field

[0001] The invention relates to a network control system delay compensation method in which the network only exists between the transmitter node and the (control) actuator node, and belongs to the interdisciplinary field of network communication, computer technology and automatic control. Background technique

[0002] A closed-loop feedback control system based on a real-time communication network is called a networked control system (Networked control systems, NCS), and a typical structural block diagram of a networked control system suitable for the present invention is as follows figure 1 shown.

[0003] NCS can realize complex large-scale system and remote network control, realize network resource sharing, increase system flexibility and reliability, and also make system analysis and design extremely complicated. Due to limited network bandwidth and shared by each node of the system, When the transmitter node and the (control) actuator node exchange data...

Claims

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