Wireless Power Feeding System with Identification and Position Control
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Solution Overview
Problem
Existing wireless power feeding systems face challenges in managing and controlling power delivery to receivers due to difficulties in identifying and determining the power feeding user on the receiving side, leading to inefficiencies and inconvenience.
Innovation Solution
A wireless power feeding system that utilizes a power feeding device and receiver with integrated transmission/reception circuits, signal processing circuits for identification and position detection, and power management, enabling precise control of power transmission based on identification and position information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless power feeding is implemented without contactless communication, then power can be transmitted wirelessly, but it becomes difficult to determine or manage the power feeding user and control the amount of power supplied
Solution Approach 1:
The patent implements a feedback mechanism where the power receiving device sends response signals containing identification information and position information back to the power feeding device. This allows the power feeding device to adjust power transmission based on received feedback, enabling proper user management and power control despite the contactless nature of the system.
Solution Approach 2:
The patent uses electromagnetic waves as an intermediary carrier to transmit both power and information between the power feeding device and power receiving device. By modulating identification and position information onto the electromagnetic waves, the system achieves both wireless power transmission and user management without requiring separate contactless communication channels.
2Productivity
If power is transmitted without identifying the power receiver, then power feeding can be simplified, but efficient service and appropriate power control cannot be achieved
Solution Approach 1:
The patent performs identification and position detection of the power receiver before initiating power transmission. The power feeding device receives identification information from the power receiving device in advance, stores it in a determination table, and uses this pre-acquired information to efficiently manage and control power delivery, achieving both productivity and ease of operation.
3Device complexity
If position detection is not implemented, then the system can be simpler, but appropriate power control based on position cannot be achieved
Solution Approach 1:
The patent makes the electromagnetic wave transmission system multi-functional by using it for both power transmission and position detection. The power feeding device transmits electromagnetic waves that carry both power and position detection signals, while the power receiving device extracts position information from these same waves. This universal approach enables adaptability in power control without adding separate position detection hardware.
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 allows for efficient and convenient power management, ensuring appropriate power delivery to the receiver, reducing waste and extending the operational period of portable devices and electric transportation means.
Implementation Method 1
a transmission/reception circuit portion for the power feeding device which transmits and receives electromagnetic waves
Implementation Method 2
a power storage portion including a secondary battery which stores power transmitted from the power feeding device
Data Source
AI summary
An object is to provide a power feeding system and a power feeding method which are higher convenient for a power feeding user on the power receiving side. Another object is to provide a power feeding system and a power feeding method which can offer efficient services by determining or managing a power feeding user and controlling the amount of power supplied to the power receiver appropriately by a company on the power feeding side. A power feeding device which supplies power to a power receiver wirelessly manages the power receiver on the basis of identification information of the power receiver and controls power transmitted to the power receiver on the basis of position information of the power receiver.