Wireless Power Transmission Priority Control
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Solution Overview
Problem
In noncontact power supply systems, it is challenging to prioritize electric power distribution among multiple devices within a charging area, as electromagnetic waves reach all devices equally, preventing selective power allocation based on device priorities.
Innovation Solution
A power transmission device equipped with a power transmitting unit and a power transmission control unit that detects and prioritizes power receiving units, preferentially transmitting more electric power to devices with higher priority settings, using a magnetic field resonance system to efficiently transmit power while managing power distribution based on device IDs, authentication, and priority tables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If electromagnetic waves are used for noncontact power transmission to multiple devices, then power transmission coverage is improved, but selective power allocation based on device priorities deteriorates
Solution Approach 1:
The patent assigns different priority levels to different devices within the charging area, creating local differentiation in power transmission characteristics. The control unit transmits power with different intensities or characteristics to devices based on their assigned priorities, allowing selective power allocation while maintaining broad coverage. High-priority devices receive preferential power transmission while low-priority devices receive reduced or no power transmission.
2Adaptability or versatility
If power is transmitted to all devices in the charging area, then power transmission versatility is improved, but power distribution control deteriorates
Solution Approach 1:
The patent changes the parameters of power transmission by introducing priority levels as a controlling parameter. The control unit adjusts transmission parameters such as power intensity, transmission frequency, or transmission timing based on the priority values assigned to different devices. This allows the system to maintain versatility in supporting multiple device types while achieving effective power distribution control through parameter modulation.
3Ease of operation
If wired connection is used for power transmission, then power distribution control is improved, but operational convenience deteriorates
Solution Approach 1:
The patent replaces the mechanical wired connection system with an electromagnetic field-based noncontact power transmission system. By using magnetic field resonance or electromagnetic induction, the system achieves power transmission without physical contact, eliminating the need for connectors and cables while maintaining the ability to control power distribution through electronic priority-based control mechanisms.
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
Enables selective and efficient power supply to devices based on their priority, optimizing power usage and reducing charging time for higher-priority devices, while managing power transmission within the capacity constraints of the power transmitting unit.
Implementation Method 1
a noncontact power supply system that supplies electric power to various devices in a noncontact (wireless) manner has attracted attention. A noncontact power supply system includes a power transmitting unit that transmits electric power using a power supply system such as a magnetic field resonance system
Implementation Method 2
a power receiving unit configured to receive the electric power transmitted by the power transmitting unit
Data Source
AI summary
A power transmitting unit transmits electric power. A power transmission control unit detects one or more power receiving units that receive the electric power and controls the power transmitting unit so that more electric power is transmitted to a power receiving unit with a higher priority. One aspect of the present invention may be realized as a transmission device; a power supply system including a power receiving unit and the transmission device; or a power supply system further including an electronic device which consumes electric power received by the power receiving unit.