Vehicle Charger Server Authentication System
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Solution Overview
Problem
Existing systems for updating information related to vehicle charging infrastructure face challenges in verifying the authenticity of information provided by users or terminal apparatuses.
Innovation Solution
A system involving a vehicle, multiple chargers, and a server apparatus where position and identification information are signed and transmitted through a network, allowing the server to update information and verify authenticity by applying multiple signatures to ensure genuineness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If information is collected from users and terminal apparatuses to update charging infrastructure data, then the quantity and coverage of information is improved, but the reliability and authenticity verification becomes difficult
Solution Approach 1:
The patent introduces a server as an intermediary that collects information from multiple terminal apparatuses and vehicles, applies digital signatures to verify authenticity, and manages the charging infrastructure database. This intermediary resolves the contradiction by providing a centralized verification mechanism that maintains reliability while aggregating large quantities of information from distributed sources.
Solution Approach 2:
The system implements feedback loops where the server sends requests to terminal apparatuses and vehicles for information confirmation, receives signed responses, verifies the signatures, and updates the database accordingly. This feedback mechanism ensures that only authenticated information from verified sources is incorporated, maintaining reliability while gathering comprehensive data.
2Reliability
If multiple signatures are applied to position and identification information, then the reliability and authenticity verification is improved, but the device complexity and processing overhead increases
Solution Approach 1:
The patent applies digital signatures to position information and identification information at the source (terminal apparatuses and vehicles) before transmission to the server. This preliminary action ensures authenticity is established upfront, allowing the server to verify rather than generate signatures, thereby reducing the server's processing complexity while maintaining high reliability.
Solution Approach 2:
The signing process is segmented into different components: terminal apparatuses sign their own information, vehicles sign received information from terminals, and the server verifies these signatures. This segmentation distributes the computational burden across multiple entities, reducing individual device complexity while collectively achieving high verification reliability.
Data Source
AI summary
An information update system is provided with a vehicle (10), a plurality of charger (20), and a server apparatus (30). The vehicle applies a first signature to position information associated with the vehicle, and transmits to a charger when a battery is charged. The charger applies a second signature to the position information with the first signature applied thereto. The charger further transmits, to the vehicle, identification information associated with the charger with a third signature applied thereto. The vehicle further applies a fourth signature to the identification information. The vehicle or the charger transmits to the server apparatus the position information with the first signature and the second signature applied thereto, and the identification information with the third signature and the fourth signature applied thereto. The server apparatus updates stored position information on the basis of the transmitted position information and the transmitted identification information.