Method for calculating optimal wheel position control angle of passenger boarding bridge automatic docking system

Patent metadata

Field	Value
Publication number	US-11565830-B2
Application number	US-202117169478-A
Country	US
Kind code	B2
Filing date	Feb 7, 2021
Priority date	Apr 30, 2020
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A method for calculating an optimal wheel position control angle of passenger boarding bridge automatic docking system includes collecting ranging information of a sensor to rotate the bridgehead direction via a distance measuring sensor on both sides of the bridgehead of the passenger boarding bridge, making the bridgehead parallel to the aircraft fuselage; collecting information of an aircraft door by a camera at the bridge head of the passenger boarding bridge to obtain a center position D of the aircraft door; in an ideal docking situation, the aircraft door should appear at the bridge head position as D″; the position where D″ is projected vertically onto the aircraft fuselage is D′, that is, the line segment DD′ is the horizontal distance deviation between the current passenger boarding bridge and the aircraft door, the line segment D′D″ is the distance between the current boarding bridge and the aircraft fuselage.

First claim

What is claimed is:

1. A method for calculating an optimal wheel position control angle of a passenger boarding bridge automatic docking system, the method comprising:
S1. collecting ranging information of a sensor to rotate a bridgehead direction via a distance measuring sensor on both sides of the bridgehead of a passenger boarding bridge, making the bridgehead parallel to an aircraft fuselage;
S2. collecting information of an aircraft door by a camera at the bridge head of the passenger boarding bridge to obtain a center position D of the aircraft door; in an ideal docking situation, the aircraft door should appear at the bridge head position as D″; the position where D″ is projected vertically onto the aircraft fuselage is D′, that is, the line segment DD′ is the horizontal distance deviation between the current passenger boarding bridge and the aircraft door, the line segment D′D″ is the distance between the current boarding bridge and the aircraft fuselage;
S3. defining a center point of the boarding bridge head as H; after the boarding bridge is docked with the aircraft door, the center position of the boarding bridge head is H′; corresponding to the definition in S2, the line segment HH′ is parallel and equal to the line segment DD″; then ∠DD″D′ is the angle at which the bridgehead offset, which is defined as ∠A;
S4. getting a distance MH from a center point M of the wheel frame to the center point H of the bridgehead, and obtaining a length PH of the bridge body, where point P is the column position of the boarding bridge; getting a current bridgehead angle ∠B; obtaining a corresponding value by a distance sensor and the bridgehead angle sensor on the passenger boarding bridge; the bridgehead angle ∠B is the angle between the center line PH of the bridge body and the center line HT of the bridgehead; when HT is on the left side of PH, ∠B is a positive angle. When HT is on the right side of PH, ∠B is a negative angle;
S5. defining the center point of a target wheel carrier as M′, ∠HMM′ is a control angle of a boarding bridge wheel position:

∠
⁢

⁢

HMM
′

=

π
-

arcsin
(

HH

′
*

⁢

sin
⁡

(

π
-

∠
⁢

⁢
O

)

-

MH
*

⁢

HH

′
*

⁢

sin
⁡

(

π
-

∠
⁢

⁢
O

)

Σ

(

PH
-
MH

)

2

+

(

Σ
-
MH

)

2

-

2
*

⁢

(

PH
-
MH

)

*

(

Σ
-
MH

)

*

⁢

1
-

(

HH

′
*

Assignees

• Univ Electronic Sci & Tech China

Inventors

• Ye Run
• Yan Bin
• Zhang Cheng
• He Xuemei
• Zhou Xiaojia

Classifications

• B64F1/3055 Primary

  with hinged head interface between aircraft and passenger bridge · CPC title

• G05B19/0426 Primary

  Programming the control sequence · CPC title

• G05B2219/2637

  Vehicle, car, auto, wheelchair · CPC title

• B64F1/305

  Bridges extending between terminal building and aircraft, e.g. telescopic, vertically adjustable · CPC title

• G05B2219/2603

  Steering car · CPC title