Ground Power Supply Control for Secure Vehicle ID Retention
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Solution Overview
Problem
Existing ground power supply systems face challenges in confirming the legitimacy of vehicles requesting noncontact power supply and managing identification information to prevent theft and optimize storage capacity.
Innovation Solution
A system comprising a server, ground power supply apparatus, and mobile unit that communicates via wide and narrow area wireless channels, utilizing magnetic field resonant coupling for power transfer, and adjusts the timing of identification information deletion based on road conditions and vehicle path to ensure legitimate power supply and efficient storage management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If identification information is stored in the ground power supply apparatus to confirm vehicle legitimacy, then power supply security is improved, but storage capacity is consumed and theft risk increases
Solution Approach 1:
The system pre-stores identification information of authorized vehicles in the ground power supply apparatus before the vehicles arrive. This preliminary storage enables immediate legitimacy verification when vehicles approach, ensuring power supply security while allowing the system to proactively manage and delete unused identification data to optimize storage capacity
Solution Approach 2:
The system automatically deletes identification information from the storage device when it determines that the corresponding vehicle will not utilize the power supply (e.g., when the vehicle's running path does not include the current ground power supply apparatus). This discarding of unused identification data recovers storage capacity while maintaining security by keeping only relevant authorization data
2Object-affected harmful factors
If identification information is retained in storage to prevent power theft, then security is improved, but storage capacity is reduced
Solution Approach 1:
The system dynamically adjusts the retention period of identification information based on real-time data about vehicle running paths and power supply locations. Identification data is automatically deleted when the system determines the corresponding vehicle will not use this particular power supply, making the storage capacity adaptive rather than static, thus preventing power theft while optimizing available storage
3Object-affected harmful factors
If identification information deletion timing is delayed to ensure security, then power theft prevention is improved, but storage efficiency deteriorates
Solution Approach 1:
The system continuously receives feedback about vehicle running paths from the server and adjusts its deletion timing accordingly. When feedback indicates that a vehicle's path does not include the current ground power supply apparatus, the system deletes that vehicle's identification information from storage. This feedback-driven approach ensures security by verifying legitimacy before deletion while maximizing storage efficiency by removing unnecessary data promptly
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables timely deletion of identification information for vehicles that do not utilize the power supply, preventing theft and optimizing storage capacity based on road conditions, thus ensuring secure and efficient power transmission.
Implementation Method 1
a noncontact power supply system which utilizes a transmission system such as magnetic field coupling (electromagnetic induction), electric field coupling, magnetic field resonant coupling (magnetic field resonance), and electric field resonant coupling (electric field resonance) to transmit electric power
Data Source
AI summary
A ground power supply apparatus is provided with a control device configured to supply power to a mobile unit by noncontact if identification information of the mobile unit received from a server and stored in a storage device matches identification information of the mobile unit received from the mobile unit. The control device is configured to change a timing of deletion of identification information of the mobile unit received from the server and stored in the storage device from the storage device or the timing of invalidation of the identification information of the mobile unit received from the server and stored in the storage device based on the road conditions around the road at which the ground power supply apparatus is installed or the running path of the mobile unit.