Infrared Wireless Power Alignment Using Retroreflective Targeting
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Solution Overview
Problem
Conventional contactless power transmission systems have complex configurations due to the need to compare blinking period information received by a communication device with the blinking period recognized from captured images, making them cumbersome.
Innovation Solution
A power supply system with a first infrared output unit on one object and a reflector on another object, using retroreflection to simplify the configuration for wireless power supply, where the power supply outputs a beam in the direction of received infrared rays for efficient energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional contactless power transmission systems use communication devices to exchange blinking period information and compare it with recognized blinking periods, then positioning accuracy and power transmission reliability are improved, but device complexity increases
Solution Approach 1:
The patent extracts the communication device and blinking period comparison function from the power transmission system, replacing them with a direct optical recognition approach where the power transmission device only needs to recognize blinking periods from captured images without receiving or comparing communication signals, thereby simplifying the overall system configuration while maintaining positioning accuracy
Solution Approach 2:
The patent replaces the communication-based information exchange mechanism with an optical image recognition mechanism. Instead of using communication devices to transmit and compare blinking period data, the system uses an imaging device to directly capture and recognize blinking periods from visual signals, substituting a complex electronic communication system with a simpler optical recognition system
2Measurement precision
If conventional systems require comparison between received blinking period information and recognized blinking periods, then positioning accuracy is improved, but the configuration becomes complicated
Solution Approach 1:
The patent removes the communication device and the blinking period comparison process from the system configuration. The power transmission device directly recognizes blinking periods from images captured by the imaging device and uses this recognition result for positioning and power transmission control, eliminating the need for receiving and comparing communication signals while maintaining positioning accuracy
Solution Approach 2:
The imaging device and controller work together in a self-contained manner where the controller directly processes the captured image data to recognize blinking periods without external communication input. The system uses its own imaging capability to obtain positioning information, making the configuration simpler and more self-sufficient
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 wireless power supply with a simple configuration, reducing complexity and enhancing reliability by using retroreflection for infrared ray redirection and beam alignment.
Implementation Method 1
a reflector provided on the second object, the reflector being configured to reflect the first infrared ray by retroreflection
Implementation Method 2
a power supply provided on the first object, the power supply being configured to... output a beam in an arrival direction of the reflected infrared ray or the second infrared ray
Data Source
AI summary
To provide a power supply system, a power device, and a power method capable of wireless power supply with a simple configuration.A power supply system includes a first infrared output unit provided on a first object, the first infrared output unit having a first directivity configured to output a first infrared ray in a first direction in which a second object that relatively moves with respect to the first object is situated, the first infrared output unit being configured to output the first infrared ray, a reflector provided on the second object, the reflector being configured to reflect the first infrared ray by retroreflection, a second infrared output unit provided on the second object, the second infrared output unit having a second directivity configured to output a second infrared ray in a second direction in which the first object that relatively moves is situated, the second infrared output unit being configured to output the second infrared ray by using power received by wireless power supply, and a power supply provided on the first object, the power supply being configured to, in a case of receiving a reflected infrared ray of the first infrared ray reflected by the reflector or in a case of receiving the second infrared ray, output a beam in an arrival direction of the reflected infrared ray or the second infrared ray.