Wireless Power Supply Using Frequency Segmentation and Beamforming
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Solution Overview
Problem
Existing wireless power supply technologies face inefficiencies due to the need for serial performance of wireless communication and power supply, which leads to interference and increased power consumption, especially in congested frequency bands like the ISM band, and require separate antennas for communication and power supply.
Innovation Solution
A wireless power supply apparatus that uses different frequencies for wireless communication and power supply, allowing simultaneous or concurrent operation by employing a transmitter circuitry to form a beam pattern of radio waves with directivity towards the power receiving terminal, thereby reducing interference and enhancing power supply efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless communication and wireless power supply are performed serially using the same frequency, then device complexity is reduced, but productivity decreases and harmful factors increase due to interference
Solution Approach 1:
The patent segments the electromagnetic spectrum into different frequency bands, allocating one band for wireless communication and another for wireless power supply. This frequency segmentation allows both functions to operate simultaneously without mutual interference, resolving the contradiction between using a single frequency (simpler device) and achieving high productivity (efficient power supply).
Solution Approach 2:
The patent introduces a new dimension (frequency band selection) to resolve the conflict. By transitioning from a single-frequency approach to a multi-frequency approach, the system can perform communication and power supply in parallel, thereby improving productivity while managing device complexity through proper frequency resource allocation.
Solution Approach 3:
The patent changes the frequency parameter used for power supply transmission, selecting a frequency band that does not overlap with communication bands. This parameter change eliminates harmful interference effects and allows simultaneous operation of communication and power supply functions, thereby improving overall system productivity.
2Productivity
If wireless communication and wireless power supply are performed simultaneously on the same frequency, then productivity improves, but object-generated harmful factors increase due to interference
Solution Approach 1:
The patent extracts the power supply function from the communication frequency band and places it in a separate, dedicated frequency band. This extraction eliminates the harmful interference that would occur if both functions shared the same frequency, while still allowing simultaneous operation to maintain high productivity.
Solution Approach 2:
The patent changes the frequency parameter for power supply transmission to a value that does not create interference with communication signals. By selecting an appropriate frequency band for power supply, the system eliminates harmful interference effects while maintaining simultaneous operation capability.
3Measurement precision
If position estimation signal is transmitted for direction estimation, then measurement precision improves, but loss of time and energy increase
Solution Approach 1:
The patent merges the position estimation function with the wireless communication function by utilizing existing communication signals for direction estimation. This integration eliminates the need for separate position estimation signals, thereby reducing time loss while maintaining measurement precision through the use of communication signal characteristics.
Solution Approach 2:
The patent makes the communication signal serve multiple functions: both data transmission and position/direction estimation. This multi-functionality approach allows the system to achieve accurate direction estimation without requiring additional time or separate signaling, thereby reducing time loss while maintaining measurement precision.
4Reliability
If separate antennas are provided for communication and power supply, then reliability improves, but device complexity increases
Solution Approach 1:
The patent segments the electromagnetic spectrum into distinct frequency bands for communication and power supply, allowing a single antenna system to handle both functions separately in the frequency domain. This segmentation approach maintains reliability by preventing interference while avoiding the need for physically separate antenna systems, thereby reducing device complexity.
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
This approach enables efficient wireless power supply while minimizing interference with wireless communication, improving power delivery efficiency by using distinct frequencies and estimating the direction of the power receiving terminal during communication, thus enhancing the overall performance of wireless power transfer.
Implementation Method 1
a transmitter circuitry configured to transmit a first wireless signal for a wireless communication to a first terminal via a first frequency
Implementation Method 2
form a beam pattern of radio waves of a second frequency different from the first frequency based on the position information, the beam pattern having directivity to the first terminal
Implementation Method 3
form a beam pattern of radio waves of a second frequency different from the first frequency based on the position information, the beam pattern having directivity to the first terminal
Implementation Method 4
wirelessly supply power to the first terminal via the second frequency during the wireless communication with the first terminal
Data Source
AI summary
An electronic apparatus includes a transmitter circuitry, receiver circuitry, and controller circuitry. The transmitter circuitry is configured to transmit a first wireless signal for a wireless communication to a first terminal via a first frequency. The receiver circuitry is configured to receive a second wireless signal for the wireless communication from the first terminal via the first frequency. The controller circuitry is configured to detect position information of the first terminal based on the second wireless signal and form a beam pattern of radio waves of a second frequency different from the first frequency based on the position information, the beam pattern having directivity to the first terminal. And the transmitter circuitry is further configured to wirelessly supply power to the first terminal via the second frequency during the wireless communication with the first terminal.