Temporary Identifier Allocation for Vehicle Privacy in ITS
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Solution Overview
Problem
The increasing population and vehicle density in urban areas lead to serious issues like traffic congestion, environmental pollution, and safety concerns, where existing Intelligent Transport Systems (ITS) face challenges in protecting private vehicle information from leakage, compromising information security.
Innovation Solution
A traffic service obtaining method and device that uses a temporary identifier within the ITS to identify vehicles, preventing the association with private information such as driver data, and ensuring secure information exchange by managing registrations, queries, and deregistrations, while determining legal vehicle status and allocating temporary identifiers based on permanent identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If permanent identifiers are used to identify vehicles in the transport system, then vehicle identification accuracy is improved, but private information security deteriorates
Solution Approach 1:
The patent segments the identification system into two distinct identifier types: permanent identifiers (for accurate vehicle identification and tracking) and temporary identifiers (for public service interactions). This segmentation allows the system to maintain precise vehicle identification while preventing exposure of private information, as temporary identifiers can be used in place of permanent ones during service provision.
Solution Approach 2:
The patent introduces temporary identifiers as an intermediary between the vehicle identification system and public service delivery. These temporary identifiers act as mediators that enable service provision without directly exposing permanent identifiers or private vehicle information, thus resolving the conflict between identification accuracy and information security.
2Loss of information
If temporary identifiers are allocated to vehicles, then information security is improved, but system complexity increases
Solution Approach 1:
The patent makes the management center universal by giving it multiple functions: allocating both permanent and temporary identifiers, managing the correspondence between them, and coordinating service provision. This multi-functionality consolidates complexity into a single centralized entity rather than distributing it across multiple systems, making the overall system more manageable despite the added identifier management requirements.
3Measurement precision
If detailed vehicle status information is collected for traffic services, then service accuracy is improved, but information leakage risk increases
Solution Approach 1:
The patent applies local quality by differentiating the level of information disclosure based on the service context. Temporary identifiers provide sufficient information quality for public traffic services (such as routing and congestion information) without exposing sensitive private details. The system maintains high service accuracy by providing appropriate information locally at each interaction point while preserving overall information security.
Data Source
AI summary
Embodiments of the present invention provide a traffic service obtaining method comprises: receiving a registration request sent by a first vehicle; allocating a temporary identifier to the first vehicle based on the registration request, where the temporary identifier is used to identify the first vehicle in coverage of a transport system; receiving a request message that is sent by a second vehicle and that is used to request a target traffic service; determining a first vehicle related to the target traffic service, and determining, based on a table of a correspondence, target status information required for the target traffic service; obtaining the target status information from the first vehicle, where the target status information carries the temporary identifier; and sending the target status information to the second vehicle, where the target status information is used to provide the second vehicle with the target traffic service.