Guidance Zone Temporary ID Assignment for Non-Overlapping V2X Tracking
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Solution Overview
Problem
In V2X communication systems, existing methods for assigning temporary identifiers to vehicles within a guidance zone do not guarantee non-overlapping identifiers, leading to potential mismatches and service disruptions when vehicles enter or exit the zone.
Innovation Solution
An apparatus and method that includes a vehicle detector and a roadside unit (RSU) module to assign a unique temporary identifier to a vehicle based on its position information upon entering a guidance zone, ensuring the identifier does not overlap with other vehicles, and maintains it until the vehicle exits the zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If vehicles generate random temporary identifiers themselves, then identifier assignment is simple and decentralized, but identifier overlaps cannot be prevented and mismatches occur when vehicles enter or exit guidance zones
Solution Approach 1:
The patent introduces a roadside unit (RSU) as an intermediary between vehicles and the guidance zone management system. The RSU receives vehicle information, generates unique temporary identifiers, and manages their assignment and revocation. This mediator ensures identifier uniqueness while maintaining system simplicity, as vehicles only need to communicate with the RSU rather than managing identifiers autonomously.
Solution Approach 2:
The system implements feedback mechanisms where vehicles report their presence status to the RSU. When vehicles enter the guidance zone, they receive temporary identifiers; when they exit, the identifiers are revoked. This feedback loop ensures that identifier assignments are dynamically adjusted based on actual vehicle presence, preventing overlaps and mismatches.
2Measurement precision
If permanent unique identifiers are used for vehicle identification, then accurate vehicle identification is achieved, but privacy protection and regulatory compliance are compromised
Solution Approach 1:
The patent employs temporary identifiers that are short-lived and disposable in nature. These identifiers are generated only when vehicles enter the guidance zone and are revoked when vehicles exit. This approach provides accurate vehicle identification during the guidance period while minimizing privacy exposure, as the identifiers cannot be traced back to permanent vehicle identities and cease to exist after use.
Solution Approach 2:
The system changes the identifier parameter from permanent to temporary. By transforming the identification mechanism from using stable, traceable permanent identifiers to using transient, non-traceable temporary identifiers, the system maintains identification accuracy within the guidance zone context while eliminating privacy risks associated with permanent identifier exposure.
3Adaptability or versatility
If temporary identifiers are changed during ongoing guidance service, then updated information can be transmitted, but mismatches with vehicle identification information occur leading to service disruption
Solution Approach 1:
The system performs preliminary actions by establishing identifier assignment rules before vehicles enter the guidance zone. Temporary identifiers are assigned at entry and maintained throughout the guidance service period. This preliminary establishment of stable identifier relationships prevents mismatches during ongoing service, while still allowing information updates through other communication channels that do not require identifier changes.
Data Source
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AI summary
Disclosed is an apparatus for assigning a temporary identifier for a guidance zone, including a vehicle detector configured to detect a vehicle in a guidance zone; and a roadside unit (RSU) module configured to, when a guidance participation request message is transmitted to the vehicle entering the guidance zone and a guidance participation response message is received from the vehicle, assign a temporary identifier to the vehicle based on vehicle detection information detected through the vehicle detector and the guidance participation response message.