Non-contact Power Transmission System with Dynamic Feedback Control
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Solution Overview
Problem
Non-contact power transmission systems face challenges in maintaining a constant power state between the transmitting and receiving apparatuses due to varying antenna orientations and obstacles, leading to potential under or over-powering issues, especially when transmitting higher capacities over longer distances.
Innovation Solution
A power transmission system that includes a power transmitting apparatus with a communication unit, a power transmission unit, a transmission power information deriving unit, and a transmission power determining unit, which adjusts the transmission power based on received power information from the receiving apparatus to ensure optimal power delivery, and a receiving apparatus with a power reception unit and a control unit that detects and reports power levels to facilitate accurate power adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If power is transmitted at higher capacity to farther distance, then the convenience and application range enhance, but the power receiving apparatus may not receive sufficient power or may receive excessive power due to varying transmission state
Solution Approach 1:
The patent implements a feedback mechanism where the power receiving apparatus transmits received power information back to the power transmitting apparatus. The transmitting apparatus uses this feedback to dynamically adjust its transmission power, ensuring the receiving apparatus receives the appropriate power level despite variations in transmission distance, antenna orientation, or obstacles.
Solution Approach 2:
The patent makes the transmission power dynamic by allowing it to be adjusted in real-time based on the received power information. Instead of fixed transmission power, the system continuously adapts the transmission parameters to match the current transmission state, enabling reliable power delivery across varying conditions.
2Adaptability or versatility
If non-contact power transmission is used to extend application range, then the convenience enhances, but the transmission state becomes non-constant due to antenna direction and obstacles
Solution Approach 1:
The system uses feedback from the receiving apparatus about received power levels to continuously monitor and adjust to changing transmission conditions caused by antenna orientation or obstacles, maintaining stable operation despite environmental variations.
Solution Approach 2:
The patent changes the transmission power parameter dynamically based on received power information to compensate for variations in transmission state, allowing the system to adapt to different distances, orientations, and obstacle conditions while maintaining reliable power transfer.
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 system ensures stable and efficient power transmission by dynamically adjusting the power level to match the receiving apparatus's needs, preventing under or over-powering and enhancing the reliability of non-contact power transfer.
Implementation Method 1
a power transmission unit for transmitting power to the power receiving apparatus in a non-contact manner
Implementation Method 2
The technique of transmitting power using electric field or magnetic field resonance
Data Source
AI summary
There is provided a power transmitting apparatus including a power transmission side communication unit for communicating with a power receiving apparatus, a power transmission unit for transmitting power to the power receiving apparatus in a non-contact manner, a transmission power information deriving unit for increasing discretely a first transmission power to transmit from the power transmission unit to the power receiving apparatus, and deriving information related to power transmission for determining a second transmission power corresponding to power desired by the power receiving apparatus based on reception of received power information transmitted from the power receiving apparatus at the power transmission side communication unit, indicating that a received power level meet a predetermined level, and a transmission power determining unit for determining the second transmission power to transmit to the power receiving apparatus based on information related to power transmission derived by the transmission power information deriving unit.