Automated Passenger Boarding Bridge Docking Control
Solution Overview
Problem
Manual docking of passenger boarding bridges to aircraft is time-consuming and prone to delays, especially when operators are busy with other tasks, leading to costly ground handling delays.
Innovation Solution
An automated docking method using a central control unit that coordinates sensors and actuators to align and secure the bridgehead with the aircraft door, including a canopy, shutter, and leveling system, allowing for autonomous operation without the need for a fully trained operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual docking is used with an operator controlling the PBB, then the operator can make real-time decisions, but the docking process is time-consuming and requires operator availability
Solution Approach 1:
The PBB system performs docking operations autonomously using its own sensors (camera, LIDAR, ultrasonic sensors) and control unit to detect aircraft position and execute docking maneuvers without requiring continuous operator intervention, thereby reducing docking time while maintaining reliability through self-monitoring and safety mechanisms
Solution Approach 2:
The patent replaces manual mechanical control with an automated control system that uses optical sensors (camera), LIDAR, and ultrasonic sensors to detect aircraft position and automatically controls the PBB's drive means, replacing the operator's mechanical joystick control with an automated sensing and control loop
2Ease of operation
If a fully trained operator is required for complete docking procedure, then operational control is maintained, but operator availability becomes a bottleneck causing delays
Solution Approach 1:
The PBB system performs docking operations autonomously using its own sensors (camera, LIDAR, ultrasonic sensors) and control unit to detect aircraft position and execute docking maneuvers without requiring continuous operator intervention, thereby reducing docking time while maintaining reliability through self-monitoring and safety mechanisms
Solution Approach 2:
The docking procedure is segmented into distinct phases: approach phase with full operator supervision, automatic docking phase where the control unit autonomously positions the bridgehead, and final alignment phase with safety verification. This segmentation allows routine portions to be automated while maintaining operator control for critical decisions
3Productivity
If automated docking is implemented, then operator availability is no longer a constraint, but the system complexity increases with multiple sensors and control mechanisms
Solution Approach 1:
The camera system serves multiple functions: detecting the aircraft door contour, identifying the line of windows, determining aircraft position, and verifying docking alignment. This multi-functionality reduces the need for separate specialized sensors, thereby managing system complexity while enabling automated operation
Solution Approach 2:
The patent combines multiple sensing modalities (camera, LIDAR, ultrasonic sensors) into a unified automated control system that processes data from all sensors through a single control unit, merging separate functions into an integrated system that manages complexity through coordination rather than multiplication
4Manufacturing precision
If the PBB is manually docked to the aircraft, then the operator can ensure proper alignment, but the process is delayed when the operator is busy with another PBB
Solution Approach 1:
The patent replaces manual mechanical control with an automated control system that uses optical sensors (camera), LIDAR, and ultrasonic sensors to detect aircraft position and automatically controls the PBB's drive means, replacing the operator's mechanical joystick control with an automated sensing and control loop
Solution Approach 2:
The system continuously monitors aircraft position using camera, LIDAR, and ultrasonic sensors, compares detected position with target alignment parameters, and automatically adjusts PBB movement in real-time to achieve precise door alignment, providing closed-loop feedback control that ensures accuracy without operator intervention
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
Method for automated handling a passenger boarding bridge (10), the method comprising the step of moving the passenger boarding bridge from a retracted position into a docking position or vice versa, in which a bridgehead (13) of the passenger boarding bridge (10) is temporary aligned with an aircraft door (3), wherein the passenger boarding bridge is handled in dependency of at least one status signal (A) referring to the status of an ancillary component (50, 60, 70, 80).