Airport Ground Vehicle Trajectory Control to Avoid Aircraft Collisions
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Solution Overview
Problem
Existing airport systems lack an effective method to prevent collisions between motorized mobile devices and aircraft, particularly considering the varying dimensions and configurations of aircraft, which poses a risk during operations.
Innovation Solution
An anti-collision airport system comprising a motorized mobile device with a controller that uses a database to record structural characteristics of aircraft and devices, calculates trajectories to avoid collisions, and adjusts based on aircraft state and configuration, utilizing identification markers, configuration markers, and proximity sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ground support equipment moves autonomously or is driven manually near aircraft, then operational efficiency is improved, but the risk of collision with the aircraft increases
Solution Approach 1:
The system performs preliminary actions by pre-calculating safe trajectories before the motorized mobile device moves near the aircraft. The controller uses the database of aircraft structural characteristics to determine collision-free paths in advance, allowing the device to operate autonomously or semi-autonomously without real-time human intervention while maintaining safety.
Solution Approach 2:
The system implements feedback mechanisms where the controller continuously monitors the position of the motorized mobile device relative to the aircraft and adjusts the trajectory in real-time. This feedback loop ensures that even if deviations occur during operation, the system can correct the path to avoid collision, thus maintaining both efficiency and safety.
2Reliability
If the system accounts for various aircraft configurations and movable elements, then collision avoidance is improved, but the complexity of the control system increases
Solution Approach 1:
The system performs preliminary actions by pre-storing structural characteristics of different aircraft categories and their movable elements in a database. When an aircraft is identified, the controller retrieves the relevant pre-stored information and pre-calculates appropriate trajectories, avoiding the need for complex real-time analysis of each configuration detail.
Solution Approach 2:
The system manages complexity by changing parameters - storing aircraft characteristics in discrete categorical forms rather than continuous detailed models. The controller switches between different sets of pre-defined parameters based on the identified aircraft category, simplifying the control logic while still accounting for various configurations.
3Reliability
If real-time trajectory calculation is performed based on aircraft structural characteristics, then navigation safety is improved, but the processing time and computational resources increase
Solution Approach 1:
The system performs preliminary actions by pre-storing structural characteristics of aircraft categories in a database during system initialization or offline preparation. This eliminates the need for time-consuming real-time data collection and analysis, allowing the controller to quickly retrieve and use pre-processed information for trajectory calculation.
Solution Approach 2:
The system segments the problem by dividing aircraft into discrete categories with characteristic parameters. Rather than processing continuous detailed geometric models in real-time, the controller works with segmented categorical data, significantly reducing computational complexity and processing time while maintaining navigation safety.
Data Source
AI summary
Anti-collision airport system including a motorized mobile device to be moved close to an aircraft. The system includes a database to record structural characteristics of categories of aircraft and structural characteristics of the motorized mobile device. The controller is configured to identify a category corresponding to the aircraft and a positioning of the motorized mobile device with respect to the aircraft, search and retrieve, from the database, structural characteristics associated with the category corresponding to the aircraft and structural characteristics of the motorized device, calculate a trajectory for the movement of the motorized mobile device on the basis of the structural characteristics of the aircraft and of the motorized mobile device and of the positioning of the motorized mobile device with respect to the aircraft, and control the motorized mobile device according to the calculated trajectory.