Wireless Power Receiver Identification via Dual-Interface Identity Verification
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Solution Overview
Problem
In wireless power systems, there is a mismatch issue where wireless power base stations incorrectly connect to mobile devices, leading to incorrect feedback and improper charging power due to the lack of a reliable identification mechanism between the transmitter and receiver.
Innovation Solution
A method is introduced where a mobile device transmits its identity via a first communication interface, allowing the wireless power base station to correctly identify and communicate with the intended device using a second communication interface, preventing mismatch connections by using In-Band and Out-of-Band communication channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If Out-of-Band communication technology is used for high data rate, then communication speed is improved, but mismatch issue occurs between transmitter and receiver
Solution Approach 1:
The mobile device transmits its identity information to the wireless power base station in advance through the first communication interface before actual power transfer. This preliminary identification action ensures that when communication occurs through the second interface, the base station already knows which device it is communicating with, preventing mismatch connections while enabling high-speed Out-of-Band communication.
Solution Approach 2:
The patent introduces an intermediary identification mechanism where the mobile device's identity is transmitted through a first communication interface as a mediator step. This intermediary action of identity transmission precedes the main power and data communication through the second interface, resolving the contradiction by separating identification from power transfer functions.
2Device complexity
If no identification mechanism is implemented, then device complexity is reduced, but mismatch connection occurs leading to wrong feedback
Solution Approach 1:
The communication system is segmented into two distinct communication interfaces: a first communication interface for transmitting identity information and a second communication interface for power transfer and feedback. This segmentation allows the system to maintain simple individual interfaces while achieving reliable identification through the coordinated operation of both interfaces, preventing feedback loss without requiring a single complex interface.
Data Source
AI summary
A method of identifying a wireless power receiver for a mobile device in a wireless power system includes transmitting a first identity of the mobile device to a wireless power base station of the wireless power system via a first wireless communication interface, receiving a first message including the first identity from the wireless power base station via a second wireless communication interface, and identifying the first message is destined to the mobile device according to the first identity.