Wireless Charging Status Detection via Power Sensing Isolation
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Solution Overview
Problem
Existing wireless charging systems face security risks due to the need for data communication between the wireless charger and other components to determine charging status, which can lead to unintended access and compromise system security in environments like gaming or vehicular systems.
Innovation Solution
A method and system that determine the charging status of a wireless charger by measuring electrical power supplied to it, comparing this measure with thresholds, and inferring the charging status without requiring data communication with the charger or the chargeable device, using sensing circuitry to obtain and decision circuitry to analyze the supplied power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If data communication is used between the wireless charger and the system controller to determine charging status, then the charging status information can be obtained accurately, but the system security is compromised due to unintended access risks
Solution Approach 1:
The patent extracts the charging status determination function from the data communication path and relocates it to the power communication path. By measuring power consumption directly at the power supply stage and comparing it with threshold values, the system obtains charging status information without establishing a data communication channel between the wireless charger and system controller, thereby eliminating the security vulnerability while preserving information accuracy
Solution Approach 2:
The patent introduces power consumption measurement as an intermediary mechanism between the power supply and the system controller. Instead of allowing direct data communication between the wireless charger and controller (which creates security risks), the measurement of power consumption serves as an indirect mediator that conveys charging status information securely through the existing power communication infrastructure
2Object-affected harmful factors
If data communication is prevented to maintain system security, then security risks are reduced, but the ability to determine charging status is lost
Solution Approach 1:
The patent replaces the electronic data communication mechanism with a physical measurement mechanism. By using power consumption measurement and threshold comparison to determine charging status, the system substitutes the vulnerable data communication path with a secure physical measurement approach that operates through the existing power supply infrastructure, maintaining both security and information availability
3Adaptability or versatility
If wireless charging is integrated into regulated systems like gaming machines, then the system provides useful functionality, but regulatory restrictions on data connections limit the ability to monitor charging status
Solution Approach 1:
The patent makes the power communication infrastructure serve multiple functions: it simultaneously provides power delivery and charging status monitoring. By measuring power consumption through the existing power communication channel, the system achieves dual functionality without requiring separate data communication hardware or connections, thereby maintaining regulatory compliance while enabling charging status monitoring
Solution Approach 2:
The wireless charging system monitors its own charging status through self-measurement of power consumption. The system uses its existing power supply infrastructure to measure and determine its own operational state, eliminating the need for external data communication or additional monitoring hardware, thereby simplifying the system while maintaining full functionality
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 allows secure determination of charging status without data communication, reducing security risks and enabling trusted operation in isolated systems, while maintaining compatibility with various wireless charging protocols and configurations.
Implementation Method 1
Wireless charging involves wirelessly transmitting electrical power from a wireless charger to a wirelessly chargeable device
Data Source
AI summary
Disclosed herein are an electronic gaming system with a wireless charger for providing wireless charging of a user's wirelessly chargeable device(s). The electronic gaming system may include a wireless charging status determination system that may measure an aspect of power supplied to the wireless charger by the electronic gaming system and may determine a charging status of the wireless charger from such measurements, thereby allowing determination of charging status of the wireless charger (and, correspondingly, a determination of charge status for a wirelessly chargeable device being charged by wireless charger) by the wireless charging status determination system without requiring any data communication between itself and the wireless charger and/or the wirelessly chargeable device. This may allow the wireless charging status determination system to communicate charging status information with, for example, the electronic gaming system without exposing the electronic gaming system to potential malicious interference from the wirelessly chargeable device.