Communication-delay-oriented aircraft formation control system event triggering method and device, and medium

A control system and event-triggered technology, which is applied in the field of aircraft control, can solve the problems of data transmission speed limit, system instability, actuators cannot execute commands immediately, etc., and achieve the effect of reducing control times and reducing losses

Active Publication Date: 2021-06-25
CENT SOUTH UNIV
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Problems solved by technology

[0004] However, time lag is ubiquitous in aircraft formation control systems, for example, when the system updates information, the actuators cannot execute commands immediately; the required state information cannot be collected and calculated within a sampling period; the speed of data transmission Inevitably limited in communication networks etc.
The network time delay is very likely to exceed the maximum time delay limit allowed by the communication network, which will cause the entire system to become unstable
Due to the limitation of transmission speed and network bandwidth, public communication network devices will delay when transmitting information and exchanging information
[0005] Due to the influence of input time lag, the system inevitably produces errors
If it is controlled according to the traditional period, for a system with a very short sampling time, it is bound to cause frequent actions of the controller and wear out system components

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  • Communication-delay-oriented aircraft formation control system event triggering method and device, and medium
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  • Communication-delay-oriented aircraft formation control system event triggering method and device, and medium

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Embodiment Construction

[0107] In order to describe the purpose, technology and features of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0108] Such as figure 1 As shown, a communication delay-oriented aircraft formation control system event triggering method is characterized in that it includes:

[0109] Step 1. Establishing a dynamics model and a communication time-delay model of the aircraft formation control system based on the graph theory method;

[0110] Using graph theory to represent the communication network of the aircraft control system;

[0111] The aircraft formation control system has N connected nodes, and the communication network diagram of the aircraft formation control system (such as figure 2 shown) is is a set of nodes in the communication network graph; representing a set of edges of the communication network graph; Indicates the communicatio...

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Abstract

The invention discloses a communication-delay-oriented aircraft formation control system event triggering method and device and a medium. The method comprises the steps: building a discrete communication delay model, designing an event triggering threshold function, and comparing a detected signal with the threshold function through the information interaction between aircraft nodes, so that the control frequency of the controller is reduced, and the loss of control components is greatly reduced.

Description

technical field [0001] The invention belongs to the field of aircraft control, and in particular relates to an event triggering method, device and medium of an aircraft formation control system facing communication time lag. Background technique [0002] In the aircraft formation control system, real-time information exchange is the prerequisite for the stable control of the aircraft system. However, the speed of information transmission is limited, and communication between aircraft in the same neighborhood inevitably has time lag, especially communication time lag. When the time lag is large, the aircraft may not be able to complete normal information exchange, resulting in formation failure. Therefore, it is of great practical significance to study the aircraft formation control system with communication delay. Different from the traditional single system, the aircraft formation control system can be regarded as a multi-agent system composed of subsystems controlled by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/104
Inventor 雷琪罗莹
Owner CENT SOUTH UNIV
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