Wireless Power Supply Test Verification for Energy Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless power supply systems using the magnetic field resonance method, power is often wasted as the power supply apparatus incorrectly identifies power receiving devices outside the power supply area but within the communication area, leading to inefficient energy transmission.
Innovation Solution
Implementing a power supply apparatus with a receiving unit and a power supply control unit that performs a test power supply to verify the target device's ability to receive power before initiating actual power transmission, ensuring efficient energy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power supply apparatus supplies electric power to a power receiving apparatus detected in the communication area, then data communication capability is improved, but electric power is wasted when the device is outside the power supply area
Solution Approach 1:
The patent applies preliminary action by performing a test power supply before actual power supply. The power supply control unit instructs the power supply unit to perform a test power supply to the target power receiving apparatus, and only if successful, proceeds to actual power supply according to the power supply condition. This preliminary test prevents wasting energy on devices that cannot receive power properly.
Solution Approach 2:
The patent uses feedback by having the power receiving apparatus transmit a unique ID and power supply condition back to the power supply apparatus, and by checking for success notification of the test power supply. This feedback mechanism allows the power supply apparatus to determine whether to proceed with actual power supply, avoiding energy waste on incompatible or absent devices.
2Loss of energy
If the power supply apparatus performs test power supply to verify target device, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using the existing communication channel for multiple purposes: both for data exchange (unique ID, power supply condition) and for power transmission verification (test power supply). This multi-functionality approach avoids adding separate verification hardware, thus limiting the increase in device complexity while achieving energy efficiency.
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 approach reduces unnecessary power consumption by confirming the target device's power reception capability before full power supply, preventing energy wastage and optimizing energy transmission.
Implementation Method 1
there are four types of wireless power supply methods, that is, an electromagnetic induction method, a magnetic field resonance method, an electric field coupling method, and a radio wave receiving method. Among these methods, the magnetic field resonance method can transmit a sufficient amount of electric power over a long distance as its feature.
Implementation Method 2
there are four types of wireless power supply methods, that is, an electromagnetic induction method, a magnetic field resonance method, an electric field coupling method, and a radio wave receiving method.
Data Source
AI summary
A power supply apparatus includes a receiving unit configured to receive a power supply request and a power supply condition from a power receiving apparatus, and a power supply control unit configured to instruct a power supply unit to perform a test power supply to a target power receiving apparatus which is a transmission source of the power supply request, and instruct the power supply unit to perform actual power supply according to the power supply condition when the receiving unit receives a success notification of the test power supply from the target power receiving apparatus after performing the test power supply.