Automated Vehicle Onboarding Using Certification Keys and Bounding Boxes
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Solution Overview
Problem
Onboarding vehicles to be autonomously marshaled by infrastructure systems can be inaccurate, leading to issues such as incorrect vehicle recognition, unintended vehicle onboarding, and delays in production cycles, as well as improper marshaling into parking spots or charging bays.
Innovation Solution
A method involving the exchange of infrastructure and vehicle certification keys, generation of a virtual bounding box, and a stitching analysis of these keys using a derived secret key approach to accurately identify and marshal vehicles, ensuring precise location determination and secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional vehicle onboarding methods are used, then the process is simpler, but the accuracy of vehicle recognition and onboarding is poor
Solution Approach 1:
The patent segments the onboarding process into distinct phases: initial detection phase using simple infrastructure, followed by a verification phase using multiple transmission points. This segmentation allows the system to maintain simplicity for initial vehicle detection while introducing complexity only when needed for accurate verification and onboarding, thus resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The patent introduces certification keys as an intermediary mechanism between the vehicle and infrastructure system. These keys enable accurate vehicle identification and verification without requiring complex continuous monitoring infrastructure. The intermediary certification process bridges the gap between simple detection and precise onboarding, improving measurement precision while controlling overall system complexity.
2Reliability
If traditional onboarding methods are used, then the system is faster, but delays in production cycle times occur due to onboarding errors
Solution Approach 1:
The patent implements preliminary verification actions during the onboarding process by using multiple transmission points to verify vehicle location and identity before final onboarding. This preliminary verification prevents errors that would require rework later, thereby improving reliability without significantly impacting production cycle time. The verification is performed as a quick check rather than a lengthy process.
Solution Approach 2:
The system incorporates feedback mechanisms where the infrastructure receives verification data from multiple transmission points and adjusts the onboarding decision based on this feedback. This feedback loop ensures high reliability by confirming vehicle identity and location accuracy, while the automated nature of the feedback processing minimizes additional time requirements, thus maintaining productivity.
3Measurement precision
If multiple transmission points are used for verification, then vehicle location accuracy improves, but communication complexity increases
Solution Approach 1:
The patent merges the communication functions of multiple transmission points into a coordinated verification system. Instead of each transmission point operating independently with complex individual protocols, they work together using a standardized certification key verification process. This merging approach maintains high location accuracy through multiple verification points while reducing overall communication complexity through standardized procedures.
Solution Approach 2:
The certification key verification mechanism serves multiple functions: it verifies vehicle identity, confirms vehicle location, and authorizes onboarding. This multi-functional approach allows the system to use the same communication protocol for multiple purposes, thereby improving measurement precision through multiple verification points without proportionally increasing communication system complexity.
Data Source
AI summary
A method includes the receipt of one or more vehicle marshaling messages, the transmission of an infrastructure-initiated certification key associated with the vehicle, the receipt of a vehicle-initiated certification key based on one or more nodes of the vehicle verifying the infrastructure-initiated certification key, the verification that the vehicle-initiated certification key corresponds to an identify of the vehicle, and the generation of a virtual bounding box indicative of a current location of the vehicle.