Wireless Power Signal Control via Frequency Shifted Cycle Instructions
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Solution Overview
Problem
Existing wireless power transmission systems face inefficiencies in energy transfer due to the need for complex processing to adjust transmission cycles of uplink signals, leading to increased time and frequency requirements, which negatively impact energy efficiency.
Innovation Solution
An electronic device with a transmitter, receiver, estimator, determiner, and instructor that estimates the movement speed of a reception device and adjusts the transmission cycle of a prescribed signal by shifting the center frequency of radio waves in the allocated channel for power supply, allowing for efficient power transmission without additional information communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmission cycle of uplink signals is adjusted by processing at the transmission side, then the transmission timing can be optimized, but the device complexity and processing overhead increase
Solution Approach 1:
The slave device autonomously determines its own uplink transmission cycle based on downlink signal reception timing, eliminating the need for complex centralized control processing. Each device independently adjusts its transmission timing based on local measurements of downlink signal characteristics, thereby optimizing transmission cycles while reducing overall system processing complexity.
Solution Approach 2:
Instead of having the transmission side (master device) control and adjust the transmission cycles of slave devices, the invention inverts the control direction by enabling slave devices to autonomously determine their own transmission cycles based on downlink signal characteristics. This inversion simplifies the master device's processing burden while maintaining optimized transmission timing.
2Measurement precision
If additional information communication channels are used to convey transmission cycle instructions, then control precision improves, but energy efficiency deteriorates
Solution Approach 1:
The downlink signal serves multiple functions simultaneously: it provides power transmission and conveys transmission cycle control information. By embedding control information within the existing downlink power signal rather than using separate communication channels, the system achieves precise transmission cycle control while avoiding additional energy consumption from extra communication transmissions.
Solution Approach 2:
The invention merges the power transmission function and control information transmission function into a single downlink signal. The slave device extracts both power and transmission cycle control information from the same received signal, eliminating the need for separate communication channels and reducing overall energy consumption while maintaining control precision.
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 enables efficient adjustment of transmission cycles based on movement speed, reducing power consumption and improving frequency utilization efficiency by using radio waves for power supply to convey instructions, thus enhancing energy transfer efficiency.
Implementation Method 1
a transmitter that transmits a radio wave
Implementation Method 2
a receiver that receives a radio wave
Data Source
AI summary
An electronic device according to an aspect includes: a transmitter (13) that transmits a radio wave; a receiver (14) that receives a radio wave; an estimator (15) that estimates, using a prescribed signal included in the received radio wave, a movement speed of a reception device and/or a speed varying in a propagation path between a main device and the reception device; a determiner (18A) that determines, using the estimated speed, a transmission cycle of the prescribed signal; and an instructor (18B) that provides an instruction regarding the determined transmission cycle to the reception device in accordance with a value obtained by shifting a center frequency of the radio wave to be transmitted in a channel allocated for power supply.