Beamformed Wireless Power Delivery With Device Authentication
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Solution Overview
Problem
Existing wireless power delivery technologies, such as inductive charging, are limited in distance and lack the ability to authenticate specific devices, making it difficult to control which devices receive power in a shared environment.
Innovation Solution
A system and method for wirelessly supplying power using the same frequencies and antennas as for communication, where a wireless power signal is adjusted based on device authentication, using beamforming and temporal adjustments to ensure only authenticated devices receive power, with the help of a wireless data transceiver for authentication requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wireless power signal is transmitted to multiple devices in a shared environment, then power delivery coverage is improved, but power waste increases and device authentication control deteriorates
Solution Approach 1:
The patent applies beamforming technology to create directional power signal beams that are focused on specific authenticated devices rather than broadcasting omnidirectionally. This allows the system to maintain broad coverage capability while delivering concentrated power only to authorized devices, eliminating power waste in unauthorized areas.
Solution Approach 2:
The patent segments the wireless power signal into multiple directional beams, each targeted at a specific authenticated device. This segmentation allows the system to serve multiple devices simultaneously while maintaining precise control over power delivery to each individual device, preventing power waste.
2Reliability
If wireless power signal is transmitted continuously to ensure power availability, then power delivery reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic authentication and power signal adjustment where the system periodically checks device authentication status and adjusts power signal parameters accordingly. This allows the system to maintain reliable power delivery to authenticated devices while reducing or eliminating power signals to unauthenticated devices, optimizing energy consumption.
Solution Approach 2:
The patent uses feedback mechanisms where devices provide authentication responses and power reception status back to the power supply system. Based on this feedback, the system dynamically adjusts power signal transmission, maintaining reliability for authenticated devices while minimizing energy waste on unauthenticated devices.
3Manufacturing precision
If beamforming is used to focus power signal on specific devices, then power delivery precision is improved, but device complexity increases
Solution Approach 1:
The patent makes the wireless communication antenna serve dual functions: both data communication and power reception. By using the same antenna for receiving both data signals and power signals, the system achieves precise beamformed power delivery without adding separate receiving hardware, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent merges the data communication and power reception functions into a single wireless receiver system. This consolidation allows the device to receive both authentication data and power through the same antenna and receiver circuitry, simplifying the overall device architecture while maintaining precise power delivery capability.
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
Enables controlled and efficient power delivery to specific devices, minimizing power waste and ensuring secure authentication, even in environments with multiple devices, by using beamforming and temporal adjustments of the wireless power signal.
Implementation Method 1
a wireless power supply transmits a wireless power signal which may be, for example, a wireless signal, such as a Wi-Fi signal
Data Source
AI summary
A wireless signal may supply a wireless power signal to a device to power the device for an authentication. If the device is authenticated, the wireless signal may be adjusted to provide power to the device. If the device is not authenticated, the wireless signal may be adjusted to avoid providing power to the device.