Wireless Power Transmitter Organism Detection Clutter Map
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Solution Overview
Problem
Existing wireless power transmitters using electromagnetic waves face challenges in safely transmitting power to electronic devices without harming living organisms, as they may apply strong RF waves to humans or animals due to the lack of precise positioning and control mechanisms.
Innovation Solution
A wireless power transmitter system that creates and updates a clutter map to determine the position of organisms and control RF wave magnitude, using a processor and patch antennas to ensure that RF waves do not exceed a predetermined value near living organisms, thereby preventing harm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-frequency RF waves are produced for remote wireless power transmission, then power transmission capability is improved, but harm to living organisms increases
Solution Approach 1:
The system performs preliminary detection of organisms in the transmission area before initiating high-power RF wave transmission. By detecting organism positions in advance and establishing exclusion zones, the system prevents harmful RF exposure while maintaining effective power transmission to electronic devices in safe zones.
Solution Approach 2:
The system continuously monitors the transmission environment for organism presence and dynamically adjusts RF wave transmission parameters. When organisms are detected, the system provides feedback to reduce or redirect transmission power, ensuring safety while maintaining transmission capability when safe.
2Object-affected harmful factors
If organism detection and control mechanisms are added to wireless power transmitters, then safety is improved, but device complexity increases
Solution Approach 1:
The wireless power transmitter is designed to perform multiple functions: electronic device detection, organism detection, clutter map generation, and dynamic transmission control. By integrating these functions into a single system, the patent avoids the need for separate independent systems, thereby managing complexity while achieving comprehensive safety.
Solution Approach 2:
The system uses its own existing RF transmission infrastructure to perform organism detection through reflected signal analysis. Rather than requiring entirely separate detection hardware, the transmitter leverages its transmission capability to also sense the environment, reducing additional 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
The system effectively reduces the risk of harm to living organisms by adjusting RF wave intensity based on the detected position of organisms, ensuring efficient and safe wireless power transmission to electronic devices.
Implementation Method 1
create a first clutter map representing a reflection characteristic of an object positioned around the wireless power transmitter based on, at least, first data obtained by the sensor
Implementation Method 2
a power transmission antenna including a plurality of patch antennas for wirelessly transmitting power based on a radio frequency (RF) wave
Data Source
AI summary
A wireless power transmitter configured to wirelessly transmit power to an electronic device is provided. The wireless power transmitter includes a power transmission antenna including a plurality of patch antennas for wirelessly transmitting power, a sensor, and a processor, wherein the processor may be configured to create a first clutter map representing a reflection characteristic of an object positioned around the wireless power transmitter based on, at least, first data obtained by the sensor during a first period, store the first clutter map, compare a difference between the first clutter map and second data obtained by the sensor during a second period with data contained in the first clutter map, create a second clutter map corresponding to the second period based on a result of the comparison, determine a position of an organism using the second data and the second clutter map, and control the power transmission antenna such that a magnitude of the RF wave is less than a predetermined value based on the position of the organism.