Ceiling Optical Charging Transmitter With Camera-Guided Beam Alignment
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Solution Overview
Problem
Wireless optical charging systems face challenges in increasing charging efficiency by accurately directing light towards the reception unit, necessitating a transmission unit that can automatically recognize and adjust its output direction.
Innovation Solution
A transmission unit with an optical generation unit, vertical and horizontal axis rotation units, and a control unit that utilizes cameras to calculate and adjust the laser light output direction based on captured images, enabling automatic recognition and alignment with the reception unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless optical charging system uses fixed direction light output, then system structure is simple, but charging efficiency cannot be optimized for different reception unit positions
Solution Approach 1:
The patent implements dynamic adjustability of the light output direction using rotation units that can change the orientation of mirrors and diffraction gratings. The first rotation unit adjusts the vertical angle while the second rotation unit adjusts the horizontal angle, allowing the system to adapt to reception units at various positions and orientations, thereby resolving the contradiction between adaptability and structural complexity.
Solution Approach 2:
The patent divides the direction control function into separate modular components: a first rotation unit for vertical angle adjustment, a second rotation unit for horizontal angle adjustment, and multiple optical elements (mirrors, diffraction gratings) that can be independently positioned. This segmentation allows each component to be optimized independently while working together to achieve high adaptability.
2Extent of automation
If wireless optical charging system adds rotation units and multiple cameras, then automatic recognition and alignment capability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the rotation units: they serve as both mechanical adjustment mechanisms for light direction control and as mounting structures for cameras. The control unit processes images from multiple cameras (including IR and depth cameras) to simultaneously perform reception unit detection, positioning, and calculation of rotation angles, achieving automatic recognition and alignment while managing system complexity through functional integration.
Solution Approach 2:
The system employs a feedback mechanism where cameras continuously capture images of the reception unit, the control unit processes these images to determine the reception unit's position and orientation, and based on this information, the rotation units automatically adjust the light output direction. This closed-loop feedback system enables automatic recognition and alignment without requiring manual intervention.
3Measurement precision
If wireless optical charging system uses multiple cameras for recognition, then recognition accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent assigns different specialized functions to different camera types: IR cameras for detecting the reception unit in various lighting conditions, depth cameras for measuring distance and spatial position, and visible light cameras for color and detail recognition. Each camera type optimizes its performance for its specific function, improving overall recognition accuracy while allowing each component to be relatively simple and cost-effective.
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 automatic recognition and precise alignment of the reception unit using multiple cameras and rotation axes, enhancing charging efficiency and convenience in wireless optical charging systems.
Implementation Method 1
an optical generation unit that generates laser light
Implementation Method 2
pass through a diffraction grating attached to the vertical axis rotation unit
Implementation Method 3
reflected by a first mirror attached to the vertical axis rotation unit
Data Source
AI summary
A transmission unit of a wireless optical charging system with an adjustable output direction attached to a ceiling of an indoor space according to the present disclosure includes: an optical generation unit that generates laser light; a vertical axis rotation unit that rotates along an axis perpendicular to a floor of the indoor space and transmits the laser light; a horizontal axis rotation unit that rotates while attached to the vertical axis rotation unit, is attached to a plurality of cameras, outputs the transmitted laser light, and rotates an output direction of the laser light and a direction of the plurality of cameras along an axis horizontal to the floor of the indoor space; and a control unit that controls the vertical axis rotation unit and the horizontal axis rotation unit according to rotation angles in vertical and horizontal directions calculated using images captured by the plurality of cameras.