Wireless Power Authentication via Identification Verification
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Solution Overview
Problem
Current wireless power transmission systems lack effective authentication methods to ensure secure access rights between power transmitting units (PTUs) and power receiving units (PRUs), which can lead to unauthorized network connections and potential security breaches.
Innovation Solution
An authentication method is introduced that determines access rights based on identification information exchanged between PTUs and PRUs, involving the transmission and comparison of unique and setting identifiers to grant or deny network connections, ensuring secure communication and preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless power transmission is implemented without authentication, then power transmission can occur freely between PTU and PRU, but security breaches and unauthorized access occur
Solution Approach 1:
The patent implements authentication before power transmission by having the PTU determine access rights based on identification information from the PRU. This preliminary verification ensures only authorized devices receive power, preventing security breaches before they occur.
Solution Approach 2:
The patent introduces an external device as an intermediary that grants access rights to the PTU. This external authentication authority mediates between the PTU and PRU, verifying identification information and controlling power transmission permissions without requiring direct complex authentication between power devices.
2Reliability
If authentication based on identification information is implemented, then unauthorized access is prevented, but additional communication steps and processing time are required
Solution Approach 1:
The PTU determines access rights based on identification information before initiating power transmission. This preliminary authentication step verifies the PRU's authorization status in advance, ensuring secure access control while streamlining the subsequent power transmission process.
Solution Approach 2:
The system implements a feedback mechanism where the PTU receives identification information from the PRU, determines access rights, and either grants or denies power transmission accordingly. This closed-loop feedback ensures proper authentication while providing clear authorization decisions.
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
This solution enhances security by ensuring only authorized devices can connect, reducing the risk of unauthorized access and maintaining system integrity within wireless power transmission networks.
Implementation Method 1
Wireless power transmission is the transmission of power to a power receiving unit (PRU) from a power transmitting unit (PTU) via magnetic resonant coupling. Accordingly, a wireless power transmission system or a wireless power charging system includes a source device for wirelessly transmitting power and a target device for wirelessly receiving power. The source device may be referred to as a source or a PTU, and the target device may be referred to as a target or a PRU. The source device includes a source resonator, and the target device includes a target resonator. Magnetic resonance coupling occurs between the source resonator and the target resonator.
Data Source
AI summary
An authentication of a power transmitting unit (PTU) includes determining whether an access right to an external device is present in a power receiving unit (PRU) based on identification information of the PRU, and network-connecting the PRU to the external device in response to a result of the determining being that the access right is present in the PRU.