Aircraft Docking Guidance Using Laser Scanner Feature Extraction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing aircraft docking methods using laser pulses are complex, require large data processing, and are hindered by unsupported detection equipment, making it difficult to identify and guide aircraft efficiently.
Innovation Solution
A guiding method that utilizes a laser scanner to detect aircraft by outputting distance and angular data, focusing on key aircraft features like nose height, fuselage height, and engine positions, simplifying the identification and guiding process by reducing the need for extensive data charts and calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional laser pulse methods are used to detect aircraft at multiple distance and angle points, then measurement precision is improved, but device complexity and data processing requirements increase significantly
Solution Approach 1:
The patent extracts and focuses only on the essential features needed for aircraft identification (nose position, fuselage height, engine positions) rather than capturing complete 3D point clouds. This selective extraction simplifies data processing while maintaining sufficient measurement precision for docking guidance.
Solution Approach 2:
The aircraft detection is segmented into key feature points (nose, fuselage, engines) rather than treating the aircraft as a complete geometric model. This segmentation reduces the complexity of data storage and comparison while preserving the essential characteristics needed for identification and guidance.
2Measurement precision
If complete aircraft shape data is stored for comparison, then identification accuracy is improved, but loss of substance increases due to large data storage requirements
Solution Approach 1:
Instead of storing complete aircraft shape data, the patent extracts and stores only critical dimensional parameters (nose height, fuselage height, engine positions). This extraction approach maintains identification accuracy while dramatically reducing data storage requirements.
Solution Approach 2:
The patent applies local quality by storing different types of data with different levels of detail - only essential dimensional parameters are stored rather than complete geometric models. This allows efficient data storage while maintaining sufficient precision for the specific application of aircraft identification and docking guidance.
3Productivity
If new generation laser scanners are used, then productivity is improved, but ease of operation worsens due to lack of supported detection equipment
Solution Approach 1:
The patent changes the operational parameters of the laser scanner to match the capabilities of new generation equipment. Instead of using traditional laser pulse methods with specific distance and angle sampling, the system uses modern laser scanner parameters (intensity, time of flight) that are better supported by current hardware, improving both productivity and ease of operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method simplifies the aircraft docking process by using new generation laser detection equipment, allowing for efficient identification and guiding of aircraft to a stop line, reducing operational complexity and data processing requirements.
Implementation Method 1
sending and receiving laser pulses to sense different points across a range of distance
Implementation Method 2
sending and receiving laser pulses to sense different points
Data Source
AI summary
A guiding method for aircraft docking process, which is used to detect an aircraft when docking to a stop line along a J-line on apron, includes steps as followed. According to response distances of different positions from a laser scanner, a distance between the aircraft and the stop line and offset angle during the docking process are detected. To show the distance and offset angle on a data display panel as guiding reference when a pilot of the aircraft operates the aircraft. The guiding method further has a waiting stage, a positioning stage, and a distinguishing stage and a guiding stage.