Wireless Power System Two-Way Communication via Modulation
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Solution Overview
Problem
The existing wireless power supply systems, such as those conforming to the Qi standard, only allow one-way communication from the power receiving apparatus to the power transmitting apparatus, limiting the ability to perform communication corresponding to various applications and complicating the control of power transmission, especially in devices like wearable devices that require waterproof and corrosion-resistant designs.
Innovation Solution
A wireless power supply system that includes a power transmitting apparatus with a power transmitting coil, a modulation/demodulation unit, and a transreceiver unit, and a power receiving apparatus with a power receiving coil, a modulation/demodulation unit, and an application processing unit, enabling two-way communication between the apparatuses to facilitate application data transmission and reception, thus eliminating the need for physical switches in the power receiving apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one-way communication is used from power receiving apparatus to power transmitting apparatus, then power control is achieved, but application-specific communication is limited
Solution Approach 1:
The patent implements two-way communication functionality in the wireless power supply system, allowing both power transmitting apparatus and power receiving apparatus to send and receive data. This enables the system to handle multiple applications (such as Bluetooth pairing, device control, and power management) through a single unified communication channel, eliminating the need for separate physical switches or additional communication interfaces while maintaining power control capabilities.
2Ease of operation
If physical switches are included in power receiving apparatus for application control, then application functionality is enabled, but waterproof properties and corrosion resistance are compromised
Solution Approach 1:
The patent replaces physical mechanical switches with wireless communication-based control mechanisms. Application control functions (such as Bluetooth pairing, device settings, and operational modes) are achieved through data transmission via the two-way communication system rather than physical switch actuation. This eliminates exposed mechanical components that would compromise waterproof sealing and corrosion resistance, while maintaining full application control capability through software-based interfaces.
3Ease of operation
If physical switches are included in power receiving apparatus, then application control is possible, but device size increases
Solution Approach 1:
The patent eliminates physical switch components by implementing application control through wireless communication data exchange. Control functions that would traditionally require mechanical switches are instead achieved through digital signal transmission and processing within the power receiving apparatus. This removal of mechanical components reduces the overall device volume and enables more compact form factors, particularly beneficial for portable and wearable applications.
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 efficient two-way communication for power transmission and application control, enhancing waterproof properties and corrosion resistance while miniaturizing the power receiving apparatus, allowing for seamless operation and pairing with Bluetooth devices without the need for physical switches.
Implementation Method 1
The wireless power supply system supplies power from a power transmitting apparatus to a power receiving system by an electromagnetic induction system. In the electromagnetic induction system, an alternating current is applied to a power transmitting coil in a state where the power transmitting coil provided for the power transmitting apparatus is disposed proximate to a power receiving coil provided for the power receiving apparatus, and an electromotive force is generated in the power receiving coil of the power receiving apparatus so as to supply power.
Implementation Method 2
The first modulation/demodulation unit performs a modulation/demodulation process on the AC power of the power transmitting coil. The second modulation/demodulation unit performs a modulation/demodulation process on the AC power of the power receiving coil.
Data Source
AI summary
Provided is a wireless power supply system including a power transmitting apparatus and a power receiving apparatus. The power transmitting apparatus includes a power transmitting coil that transmits AC power to the power receiving apparatus, a first modulation/demodulation unit that performs a modulation/demodulation process on the AC power of the power transmitting coil, a first transreceiver unit that transmits application data to the power receiving apparatus via the first modulation/demodulation unit. The power receiving apparatus includes a power receiving coil that receives the AC power from the power transmitting apparatus, a second modulation/demodulation unit that performs a modulation/demodulation process on the AC power of the power receiving coil, a second transreceiver unit that receives the application data from the power transmitting apparatus via the second modulation/demodulation unit, and an application processing unit that executes an application process based on the received application data.