Optical Wireless Power Safety Control for Dynamic Beam Response
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Solution Overview
Problem
Existing wireless power transmission systems for portable electronic devices face challenges in safely and efficiently transferring adequate power over a larger range, due to safety concerns and limitations in responding to changing environments and non-critical events.
Innovation Solution
The development of dynamic wireless power transmission systems using laser beams that can react to changing environments and situations by adjusting system parameters, detecting non-critical events, and implementing automatic responses to prevent potential unwanted situations, ensuring continuous and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional safety systems are used that only respond to critical events, then the system structure is simple, but the system cannot prevent potential unwanted situations and may exceed safe operational parameters
Solution Approach 1:
The system performs preliminary actions by detecting non-critical events and executing preventive responses before they develop into critical safety breaches. The flexible management system monitors system parameters continuously and takes corrective action in advance, such as adjusting operational parameters or alerting operators, to prevent unwanted situations from occurring in the first place.
Solution Approach 2:
The system transitions from a static, binary safety response (critical event detected → system shutdown) to a dynamic, multi-level response system. The flexible management system can adjust its response based on the severity and type of event detected, implementing a range of actions from parameter adjustments to selective component shutdowns, thereby maintaining operational flexibility while enhancing safety.
2Reliability
If the system shuts down entirely when a critical event is detected, then safety is ensured, but service continuity is interrupted and productivity is lost
Solution Approach 1:
The system divides the power supply into multiple independent channels or modules. When a non-critical event is detected in one channel, only that specific channel is adjusted or shut down while other channels continue to operate normally. This segmentation allows the system to maintain service continuity and productivity while still responding appropriately to safety concerns.
Solution Approach 2:
The flexible management system implements continuous feedback monitoring of system parameters and operational status. When non-critical events are detected, the system provides real-time feedback and executes corrective responses, allowing operators to address issues before they escalate to critical failures that would require complete system shutdown. This feedback mechanism maintains both safety and productivity.
3Reliability
If the system responds immediately to all detected events, then safety is maximized, but false alarms increase and system efficiency decreases
Solution Approach 1:
The system applies different response qualities to different types of events based on their severity and characteristics. Non-critical events receive minimal or targeted responses (such as parameter adjustments or localized monitoring), while critical events receive full safety responses. This local differentiation of response quality eliminates unnecessary system-wide reactions to minor events, maintaining efficiency while ensuring safety.
Solution Approach 2:
The flexible management system changes operational parameters in response to non-critical events rather than shutting down. By adjusting parameters such as power levels, operational modes, or monitoring frequencies, the system maintains continuity of service while addressing the detected issue, thereby avoiding the energy loss and efficiency reduction associated with complete system shutdowns.
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
These systems effectively manage power transmission in diverse and dynamic environments, preventing system malfunctions and ensuring safety by reacting to non-critical events and maintaining service under various conditions, thus making them suitable for public use.
Implementation Method 1
an optical wireless power supply comprising a transmitter adapted to transmit power wirelessly to a receiver
Implementation Method 2
a receiver adapted to convert the transmitted power into electrical power
Data Source
AI summary
A safety supervision system for wireless power transmission, comprising a transmitter having an optical beam generator with safe states for transmitting power to receivers that convert the beam into electrical power. The system control unit stores previously known signatures categorized by predetermined parameters associated with one or more unwanted situations, stores data from sensors, compares this stored data to the signatures, and executes one or more responses based on this comparison. The system may comprise transmitter and/or receiver malfunction detection systems adapted to monitor the transmitter and receiver control units and to cause the optical beam generator to switch to a safe state upon detection of a transmitter or receiver control unit malfunction, and may further comprise a hazard detection system preventing human exposure to beam intensity above a predefined safe level.