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Control method for airplane-push fuzzy-sliding model

A fuzzy sliding mode control, a technology introduced by aircraft, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of high ground fuel consumption, environmental pollution, airport ground traffic congestion, etc.

Active Publication Date: 2015-09-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of airport ground traffic congestion, low airport ground operation efficiency, high fuel consumption on the plane ground and environmental pollution and a fuzzy sliding mode control method for aircraft push out

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  • Control method for airplane-push fuzzy-sliding model
  • Control method for airplane-push fuzzy-sliding model
  • Control method for airplane-push fuzzy-sliding model

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specific Embodiment approach 1

[0022] Specific implementation mode one: combine figure 1 , Figure 2(a)~(c) and image 3 A kind of fuzzy sliding mode control method for an aircraft push out of the present embodiment is described, which is specifically prepared according to the following steps:

[0023] A fuzzy sliding mode control method for launching an aircraft includes analysis and modeling of aircraft departure process, timing data collection and processing, fuzzy controller operation, sliding mode controller verification, outputting execution instructions,

[0024] Step 1: Analysis of the aircraft departure process; analyze the aircraft departure process, clarify the constraints of the aircraft departure process, and put forward the assumptions for modeling the aircraft departure process;

[0025] Among them, the aircraft departure process (see attached figure 1 ) means: the air traffic control center issues a take-off command, and the tractor pushes the aircraft from the apron to the entrance of the ...

specific Embodiment approach 2

[0035] Specific implementation mode two: the difference between this implementation mode and specific implementation mode one is: in step two, use queuing theory to model the aircraft departure process. The specific process is:

[0036] (1) Apply queuing theory to model the aircraft departure process; the entire aircraft departure process is regarded as a serial queuing system, the aircraft entering the taxiway is the first queuing system, and the aircraft leaving the taxiway and entering the runway is the second queuing system ;

[0037] (2) Assuming that the arrival rate of the aircraft to the taxiway and the runway obeys the Poisson distribution, the arrival rates are λ 1 and lambda 2 ; The output process of taxiway and runway is subject to negative exponential distribution, taxiway service rate μ 1 and the runway service rate μ 2 , and μ 1 and μ 2 Independent;

[0038] The average queuing length of the tandem queuing system during aircraft departure for:

[0039] ...

specific Embodiment approach 3

[0047] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that in step 4, the digital signal in step 3 is utilized and Calculate the average queuing length Q(t), average waiting time T(t), queuing length error E(t) and queuing length error variation EC(t) per unit time. The specific process is as follows:

[0048] (1) The average queuing length Q(t) of aircraft per unit time is the average queuing length L of the tandem queuing system during aircraft departure:

[0049] Q ( t ) = L ‾ = ρ 1 + ρ 2 - 2 ρ 1 ρ 2 ( 1 ...

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Abstract

The invention relates to a control method for an airplane-push fuzzy-sliding model. The invention aims at solving problems that the airport ground traffic is jammed, is low in operation efficiency, is high in oil consumption, and is severe in environment pollution. The method comprises the steps: 1, determining the constraint condition of a departure process of an airplane, and proposing an assumed condition for departure process modeling of the airplane; 2, modeling the departure process of the airplane through the queuing theory; 3, converting an analog signal of airport ground information into a digital signal; 4, calculating the mean queuing length Q(t) of airplanes, the mean waiting time T(t), the queuing length error E(t) and the queuing length error variation EC(t) in a unit time; 5, calculating the number U(t) of pushed airplanes; 6, obtaining the number U(t) or U'(t)of pushed airplanes, wherein the number U(t) or U'(t) cannot cause he vibration of a system and is called as N(t); 7, enabling an analog signal of N(t) to be fed back to an execution mechanism through a converter. The method is used for the field of airplane-push fuzzy-sliding model control.

Description

technical field [0001] The invention relates to an aircraft push-out fuzzy sliding mode method, in particular to an aircraft push-out fuzzy sliding mode control method. Background technique [0002] With the rapid development of my country's air transport, the demand for civil aviation services continues to rise. In 2013, the national civil aviation passenger throughput reached 354 million, and the average annual growth rate in recent years has been above 10%. However, the construction of my country's airport infrastructure is difficult to match the increasing passenger flow due to various restrictions and influences, resulting in an imbalance between the "capacity" of the airport and the "demand" of passenger flow. On the one hand, as a bottleneck in the process of aircraft departure, the airport runway itself has physical limitations (such as long construction period, complicated process and large investment), which are difficult to alleviate in the short term. On the ot...

Claims

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Application Information

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IPC IPC(8): G05B13/04
Inventor 张亚平刘翰宁邢志伟程绍武付川云韦钰别一鸣程国柱彭挺李河江
Owner HARBIN INST OF TECH