Wireless Power Transmitter Manager Communication Handoff
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Solution Overview
Problem
Current wireless power transmission solutions require constant communication between transmitters to maintain power transfer, especially when devices move between transmitters, limiting device mobility and portability, and often necessitate extra chargers or plugs.
Innovation Solution
A method for controlling communication between wireless power transmitter managers using a device database to manage power records, where only the transmitter with the strongest signal control can transfer power, allowing for seamless handoff and simultaneous power transfer while tracking device location, utilizing Bluetooth low energy and Wi-Fi for communication, and cloud connectivity for data sharing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If constant communication is maintained between wireless power transmitter managers to avoid power transfer interruption, then power transfer reliability is improved, but device mobility and portability are limited
Solution Approach 1:
The system dynamically selects which transmitter manager communicates with the receiver based on real-time conditions. When a device moves between coverage areas, different transmitter managers take turns establishing communication links, allowing the system to adapt to device mobility while maintaining continuous power transfer through dynamic partner selection rather than constant communication from all transmitters
Solution Approach 2:
The patent introduces cloud connectivity as an intermediary layer that enables data sharing and coordination between transmitter managers without requiring direct constant communication between them and the moving device. The cloud serves as a mediator that synchronizes power records and device information, allowing transmitters to cooperate seamlessly while reducing communication overhead and enabling device mobility
2Area of stationary object
If multiple wireless power transmitter managers are used to extend power transmission range, then power transmission coverage is improved, but communication complexity increases
Solution Approach 1:
The system segments the power transmission coverage area into multiple zones, each served by a specific transmitter manager. Each manager independently manages devices within its coverage area, and the system uses device database lookups to determine which transmitter is responsible for each device. This segmentation approach extends overall coverage while avoiding the complexity of coordinated communication between all transmitters, as each manages its own segment autonomously
Solution Approach 2:
The system performs preliminary actions by maintaining device databases that pre-store power records and transmitter associations for each device. Before power transfer begins, the system looks up the appropriate transmitter manager in the database, eliminating the need for real-time complex negotiations between multiple transmitters. This preliminary organization of device-transmitter mappings simplifies communication while enabling multi-transmitter coverage
3Ease of operation
If wireless power transmission eliminates use of wires or pads, then ease of operation is improved, but communication requirements between transmitters increase
Solution Approach 1:
The system enables transmitter managers to independently manage power transfer operations by maintaining local device databases with power records. Each transmitter manager can autonomously authenticate devices, establish power transfer, and manage communication without requiring constant coordination with other transmitters. This self-service capability simplifies the overall communication architecture while enabling wireless operation, as each transmitter serves itself and its assigned devices independently
Data Source
AI summary
A method for controlling communication between wireless power transmitter managers is disclosed. According to some aspects of this embodiment, wireless power transmission system may include one or more wireless power transmitter managers and one or more wireless power receivers for powering various customer devices. A WiFi connection may be established between wireless power transmitter managers to share information between system devices. Wireless power transmitter manager may need to fulfill two conditions to control power transfer over a customer device; customer device's signal strength threshold has to be significantly greater than 50%, such as 55% or more of the signal strength measured by all other wireless power transmitter managers and has to remain significantly greater than 50% for a minimum amount of time.