Beamformed Wireless Power Supply With Automatic Direction Finding
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Solution Overview
Problem
Existing wireless power supply systems require manual measurement to determine the direction of sensor devices for efficient energy transmission, which is inconvenient and reduces efficiency, especially when the device position changes.
Innovation Solution
A wireless power supply apparatus with a controller, beamforming module, and antenna array that automatically determines the electromagnetic wave transmission direction based on direction finding information, allowing for automatic adjustment and simultaneous power supply to multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement is used to determine the direction of the wireless power receiving terminal, then the wireless power supply apparatus can concentrate energy transmission, but the deployment becomes inconvenient and efficiency is reduced
Solution Approach 1:
The wireless power receiving terminal automatically performs direction finding and sends direction information to the wireless power supply apparatus without manual intervention. The terminal uses its antenna to receive reference signals, calculate the direction of arrival, and autonomously provide this information to the supply apparatus, enabling self-service operation.
Solution Approach 2:
The patent replaces manual mechanical measurement operations with an automated electronic direction finding system. The terminal uses signal processing and mathematical calculations based on received reference signals to determine direction, substituting human operators and manual measurement tools with automated electronic computation.
2Measurement precision
If manual measurement and re-measurement are required when device position changes, then direction accuracy can be maintained, but time consumption increases and productivity decreases
Solution Approach 1:
The wireless power receiving terminal continuously or periodically performs direction finding and updates direction information to the supply apparatus. This continuous action ensures direction accuracy is maintained without interruption, allowing the system to adapt to position changes automatically and maintain efficient power transmission continuously.
Solution Approach 2:
The terminal provides feedback about its position and direction to the supply apparatus through automated direction finding. This feedback mechanism allows the supply apparatus to adjust its beamforming in real-time based on the terminal's current position, maintaining accuracy without manual re-measurement and improving overall system responsiveness and efficiency.
3Adaptability or versatility
If the wireless power supply apparatus supports multiple terminals, then power supply versatility improves, but the complexity of determining directions for multiple devices increases
Solution Approach 1:
Each wireless power receiving terminal independently performs its own direction finding and sends its direction information to the supply apparatus. This segmentation of the direction determination process to individual terminals simplifies the overall system complexity, as each terminal handles its own positioning rather than requiring centralized complex calculations for all terminals.
Solution Approach 2:
The wireless power supply apparatus uses a universal beamforming approach that can handle multiple terminals with different directions. The apparatus receives direction information from multiple terminals and applies beamforming techniques that work universally across different spatial configurations, enabling multi-terminal support without requiring terminal-specific complex determination procedures.
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 solution eliminates the need for manual measurement, enhances power supply efficiency, and facilitates deployment by automatically adjusting energy transmission as the device position changes, supporting simultaneous power supply to multiple terminals.
Implementation Method 1
The beamforming module aggregates energy of electromagnetic waves corresponding to a plurality of radio frequency signals to the transmission direction
Implementation Method 2
The antenna array is configured to receive the direction finding information, and transmit the electromagnetic waves in the transmission direction
Data Source
AI summary
A wireless power supply apparatus includes a controller, a beamforming module, and an antenna array. When direction finding information is obtained, the controller determines an electromagnetic wave transmission direction, and transmits information about the transmission direction to the beamforming module. The beamforming module aggregates energy of electromagnetic waves corresponding to a plurality of radio frequency signals to the transmission direction. The antenna array receives the direction finding information, and transmits the electromagnetic waves.