Wireless Power Reception Authentication to Limit Heat and Delay
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Solution Overview
Problem
Existing wireless power transmission systems face inefficiencies due to unnecessary processing when the validity of the target apparatus is not recognized during authentication, leading to potential issues such as excessive heat generation.
Innovation Solution
Implement a power receiving apparatus and transmitting apparatus with authentication units that perform device authentication and a control unit to determine power reception based on successful authentication results, controlling power transmission to avoid excessive heat by limiting power when authentication fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If device authentication processing is performed to enhance security, then security is improved, but processing time increases and unnecessary processing occurs when the target apparatus is not recognized
Solution Approach 1:
The patent applies preliminary action by performing a preliminary check to determine whether the power receiving apparatus is a valid target before executing the full device authentication processing. This preliminary determination step allows the system to avoid unnecessary authentication processing when the target is not recognized, thereby reducing processing time while maintaining security for valid targets.
2Reliability
If multiple device authentications are performed mutually between power transmitting and receiving apparatus, then security is enhanced, but processing complexity and time increase
Solution Approach 1:
The patent reduces authentication processing complexity by introducing a preliminary determination step that assesses whether the power receiving apparatus is a valid target before initiating mutual device authentication. This conditional approach ensures that complex authentication processing is only performed when necessary, thereby maintaining security while reducing overall processing complexity.
3Reliability
If authentication processing is performed to ensure valid target recognition, then security is improved, but convenience is impaired due to waiting time
Solution Approach 1:
The patent improves user convenience while maintaining target recognition accuracy by performing a preliminary determination of whether the power receiving apparatus is a valid target before executing full authentication processing. This preliminary check reduces the waiting time users experience while ensuring that authentication is only performed when the target is recognized as valid, thus balancing security with convenience.
Data Source
AI summary
A power receiving apparatus 200 wirelessly receives power from a power transmitting apparatus 100, mutually performs device authentications with the power transmitting apparatus 100, and determines content related to power reception on the basis of a result of a performed device authentication. The apparatus 200 is capable of performing control such that in response to success in an earlier performed device authentication among the authentications, another device authentication among the authentications is performed, and performing control such that in response to failure in the earlier performed device authentication, said another device authentication is not performed.