Wireless Power Authentication Protocol for Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing wireless power transfer systems lack a reliable method for authenticating genuine products, leading to potential safety risks due to non-standardized devices, which can cause overheating and other safety issues during charging.
Innovation Solution
A wireless power transfer system that includes a communication/control unit in both the transmitter and receiver for mutual authentication, using a wireless charging certificate format and specific communication protocols to ensure stability and reliability by verifying the authenticity of devices before and during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless power transfer is implemented without authentication, then power transfer speed and convenience are improved, but safety and reliability deteriorate due to overheating and non-standardized devices
Solution Approach 1:
The patent implements authentication and device verification procedures before initiating wireless power transfer. The transmitter and receiver exchange authentication packets and verify device legitimacy prior to charging, ensuring that only standardized, safe devices receive power. This preliminary action prevents overheating and safety issues while maintaining efficient power transfer for authenticated devices.
2Reliability
If authentication protocols are added to wireless charging, then safety and reliability are improved, but device complexity and communication overhead increase
Solution Approach 1:
The patent employs a universal authentication protocol that can be implemented across different wireless charging devices and standards. The authentication mechanism uses standardized packet structures and verification procedures that work across multiple device types, reducing the need for device-specific complex protocols while maintaining safety and reliability across the ecosystem.
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
The proposed solution enables secure and reliable wireless charging by ensuring only authenticated devices can communicate effectively, reducing the risk of overheating and other safety hazards, thus maintaining stability and reliability during high-power charging.
Implementation Method 1
a power conversion unit configured to transfer wireless power to a wireless power receiver by forming magnetic coupling with the wireless power receiver
Data Source
AI summary
A wireless power transmitter, a wireless power receiver and methods associated therewith are discussed. The wireless power transmitter includes a power converter configured to transfer wireless power to an external receiver; and at least one processor configured to communicate with the receiver to control transmission of the wireless power and to perform transmission or reception of data, wherein the processor is configured to receive, from the receiver, a received power packet (RPP) which informs a value of received power; transmit, to the wireless power receiver, a bit pattern for requesting communication in response to the RPP; and receive a polling packet from the receiver in response to the bit pattern.