Wireless Power Transmission Device with Dynamic Parameter Control
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Solution Overview
Problem
Existing wireless power transmission systems struggle to prevent unauthorized power reception by devices other than the intended power reception device, as they lack mechanisms to specifically control power transmission to only the target device, leading to potential power leakage and unauthorized use.
Innovation Solution
A power transmission system that includes a processing unit to randomly set transmission parameters, such as frequency, voltage, and azimuth angle, and encrypts communication channels to ensure only the intended device receives power, using methods like electromagnetic induction, electric waves, or magnetic-field resonance, while continuously monitoring and adjusting parameters to maintain optimal efficiency and prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power is transmitted in a specific direction toward the target device, then the power transmission efficiency to the target device is improved, but other devices within the transmission range can still receive power unauthorizedly
Solution Approach 1:
The patent applies parameter changes by dynamically varying transmission parameters (frequency, power level, time slots) to prevent unauthorized devices from consistently receiving power. The system monitors reception status and adjusts transmission parameters accordingly, transforming static transmission into dynamic adaptive transmission that excludes unauthorized devices while maintaining efficiency for the target device.
2Length of stationary object
If power transmission range is extended to reach the target device, then the transmission distance is improved, but the likelihood of unauthorized devices receiving power increases
Solution Approach 1:
The patent applies segmentation by dividing the transmission range into controlled zones and using directional transmission to segment the power flow toward specific targets. By combining extended range capability with directional control and parameter variation, the system allows long-distance transmission while preventing unauthorized reception through spatial and parameter-based segmentation of the power field.
3Measurement precision
If directivity control is used to transmit power to a specific device, then the precision of power delivery is improved, but the system complexity increases due to parameter management
Solution Approach 1:
The patent applies feedback by implementing a monitoring system that detects which devices are receiving power and feeds this information back to the transmission controller. Based on this feedback, the system automatically adjusts transmission parameters (frequency, power level, time slots) to maintain precise power delivery to the target device while excluding unauthorized devices, thereby managing complexity through automated closed-loop control.
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
Effectively transmits power to the intended device while preventing unauthorized reception by other devices, ensuring secure and efficient wireless power transfer by dynamically adjusting parameters and encrypting communication channels to maintain optimal power transmission efficiency.
Implementation Method 1
the power transmission unit wirelessly transmits the power using the at least one of the electromagnetic induction, the electric waves, the magnetic-field resonance, and the electric-field resonance
Implementation Method 2
the power transmission unit wirelessly transmits the power using the at least one of the electromagnetic induction, the electric waves, the magnetic-field resonance, and the electric-field resonance
Implementation Method 3
the communication unit receives first power reception amount information for the parameter after transmitting the power, and the processing unit is configured to calculate a first power transmission efficiency based on the first power reception amount information
Data Source
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AI summary
A power transmission device includes a communication unit that transmits a power capability information transmission request, receives power capability information in response to the power capability information transmission request, and transmits randomized parameter information by a communication channel. The power transmission device also includes a processing unit that produces the randomized parameter information, based on the power capability information. Further, the power transmission device includes a power transmission unit that wirelessly transmits power based on the randomized parameter information.