Wireless Energy Frame Resonance Multi-Device Sharing
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Solution Overview
Problem
Mobile devices with limited battery life require frequent charging, and existing wireless power transmission technologies face inefficiencies in energy sharing and data transmission across multiple devices in a network.
Innovation Solution
A wireless energy transmission apparatus using a frame-based system with mutual resonance between source and target resonators, allowing for concurrent power and data transmission, effective channel sharing, and bidirectional training, enabling efficient energy exchange among multiple terminals in a network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless power transmission is implemented using resonance between source and target coils, then power can be transmitted wirelessly to mobile devices, but the system becomes complex and difficult to manage when multiple devices share the same channel
Solution Approach 1:
The patent segments the wireless power transmission channel into multiple time slots, allowing different transmitter-receiver pairs to share the same physical channel by transmitting at different times. This time-division multiplexing approach divides the complex multi-device problem into simpler sequential transmissions, reducing interference and management complexity while maintaining wireless power transmission efficiency
Solution Approach 2:
The system implements periodic transmission cycles with structured training phases and data transmission phases. Each transmission follows a periodic pattern of channel estimation, training signal exchange, and power transmission, which regularizes the system operation and simplifies coordination among multiple devices sharing the channel
2Productivity
If multiple terminals share the wireless power transmission channel simultaneously, then energy sharing efficiency improves, but channel interference and transmission reliability deteriorate
Solution Approach 1:
The patent implements preliminary channel estimation and training signal exchange before actual power transmission begins. This preliminary action characterizes the channel conditions in advance, allowing the system to adjust transmission parameters to avoid interference and maintain reliability even when multiple terminals share the channel
Solution Approach 2:
The system incorporates feedback mechanisms where receivers send training signals back to transmitters to enable channel estimation and adaptive adjustment of transmission parameters. This feedback loop allows the system to dynamically respond to channel conditions and maintain transmission reliability in multi-terminal scenarios
3Productivity
If data transmission is performed concurrently with power transmission, then communication efficiency improves, but the complexity of frame structure and channel management increases
Solution Approach 1:
The patent merges power transmission and data communication into a unified frame structure where both functions occur concurrently within the same transmission interval. The frame includes both power carrier signals and modulated data signals, eliminating the need for separate transmission phases and improving overall communication efficiency
Solution Approach 2:
The wireless transmission system is designed to perform multiple functions simultaneously - power transmission, channel estimation, and data communication - all within the same transmission medium and time frame. This multi-functionality approach consolidates what would otherwise require separate systems into a single unified apparatus
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 apparatus facilitates efficient energy sharing and data transmission among multiple devices, reducing the need for frequent charging and enhancing network efficiency through effective channel management and simultaneous power and data communication.
Implementation Method 1
transmit, to at least one reception device, energy in a frame unit through a mutual resonance between a source resonator and a plurality of target resonators
Data Source
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AI summary
An apparatus for wirelessly transmitting energy based on a frame is provided. The apparatus includes a transmitter configured to transmit, to at least one reception device, energy in a frame unit through a mutual resonance between a source resonator and a plurality of target resonators, and a controller configured to determine information included in the frame based on whether energy is transmitted to the at least one reception device, or based on whether data is transmitted to the at least one reception device.