Digital Map Coordinate Transformation for Autonomous Vehicle Loading
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Solution Overview
Problem
Autonomous valet parking technologies are limited in their application to vehicles being loaded onto ships, trains, trucks, or aircraft, as the internal digital parking maps in these transport vehicles differ in global coordinates, making them incompatible for autonomous driving or loading without further editing.
Innovation Solution
A method and apparatus for editing digital maps of transport vehicles by surveying reference coordinates and deriving further coordinates using a derivation protocol, allowing the creation of a digital map aligned with a reference coordinate system, such as a global coordinate system, to enable efficient autonomous driving or loading across different transport vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If internal digital parking maps are used in transport vehicles, then autonomous parking functionality is enabled, but the maps have different global coordinates at different loading points making them incompatible for autonomous driving across different transport vehicles
Solution Approach 1:
The patent transforms the digital map data by changing the coordinate system parameters. It converts maps from different transport vehicles' local coordinate systems into a unified global coordinate system, allowing compatible autonomous navigation across diverse transport vehicles without requiring separate map systems for each vehicle type
Solution Approach 2:
The patent creates a universal coordinate transformation framework that works across multiple transport vehicle types (ships, trains, trucks, aircraft). The system enables a single autonomous driving system to operate universally on different transport vehicles by standardizing their respective digital maps into a common reference frame
2Reliability
If digital maps are created for each transport vehicle independently, then each vehicle has its own optimized parking map, but the maps cannot be used for autonomous loading without further editing due to coordinate system differences
Solution Approach 1:
The patent performs coordinate transformation and map alignment in advance, before autonomous navigation is needed. By pre-processing the digital maps to establish their relationships in the global coordinate system, the system eliminates the need for time-consuming real-time coordinate conversions during actual autonomous loading operations
Solution Approach 2:
The patent introduces a global coordinate system as an intermediary reference frame between different transport vehicles' local coordinate systems. This intermediary framework enables seamless translation and alignment of maps from different vehicles, allowing accurate autonomous navigation without direct complex transformations between each vehicle's coordinate system
Data Source
AI summary
A digital map of a transport vehicle for transporting vehicles includes one or more digital reference locations that are respectively associated with real reference locations of the transport vehicle. A method includes: ascertaining respective reference coordinates of the real reference locations relative to a reference coordinate system, so that the ascertained reference coordinates are associated with the corresponding digital reference locations; deriving respective coordinates of further digital locations of the digital map from the reference coordinates of the reference locations based on a derivation protocol, so that coordinates relative to the reference coordinate system are respectively associated with the further digital locations, so that an edited digital map of the transport vehicle is created, in which map coordinates relative to the reference coordinate system are associated with the digital locations.