Wireless Power Packet Control Using Intruder Alarm Detection
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Solution Overview
Problem
Conventional wireless power transmission systems face challenges in minimizing radiation exposure to humans while ensuring reliable charging of devices, as they often need to deactivate power transmission when a person is present, which can limit the power transmission rate and distance.
Innovation Solution
A wireless power transmission system that uses a Wi-Fi router as a power source to transmit high and low power packets, where high power packets are only sent when the intruder alarm is armed and not triggered, and low power packets are sent when the alarm is off or triggered, utilizing a detection system to monitor for human presence and adjust power transmission accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the wireless charging system deactivates the power transmitter when a person is present, then radiation exposure to persons is reduced, but charging availability and power transmission rate are limited
Solution Approach 1:
The system dynamically adjusts power transmission based on alarm state. When the intruder alarm is armed and not triggered, high power packets are transmitted for fast charging. When the alarm is disarmed or triggered (indicating person presence), the system switches to low power packets or deactivates transmission, thereby adapting power delivery to safety conditions while maximizing charging efficiency when safe
Solution Approach 2:
The system changes the power transmission parameter (power level) based on detection system feedback. High power packets are used when the alarm is armed and secure, while low power packets are used when the alarm is disarmed or triggered, effectively controlling radiation exposure levels through parameter adjustment rather than simple on/off switching
2Object-affected harmful factors
If the wireless charging system limits power transmission to comply with ICNIRP guidelines, then radiation exposure is controlled, but the maximum transmission distance and power transmission rate are reduced
Solution Approach 1:
The system dynamically adjusts transmission power based on alarm state. When armed and secure, higher power levels extend the effective transmission distance and improve charging rate. When disarmed or triggered, the system reduces power to comply with safety guidelines, thereby optimizing both distance and safety based on real-time security conditions
3Productivity
If high power packets are transmitted continuously, then charging efficiency is improved, but radiation exposure to persons may exceed safety regulations
Solution Approach 1:
The system uses feedback from the intruder alarm detection system to control power transmission. The detection system continuously monitors for persons, and this information feeds back to the power source to adjust transmission levels. When armed and secure, high power packets provide efficient charging. When persons are detected (alarm triggered), the system reduces power, creating a closed-loop control that balances charging efficiency with safety
Solution Approach 2:
The system employs periodic detection and adjustment cycles. The detection system continuously or periodically checks for persons, and the power transmission is adjusted in response to these periodic assessments, allowing high power transmission during safe periods and reducing power when persons are detected
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 provides two-fold protection against radiation exposure by ensuring high power packets are only transmitted when no persons are aware of the presence and minimizing exposure to unaware intruders, while maintaining power availability for devices like video cameras during security events.
Implementation Method 1
a power source for wirelessly transmitting high power packets and low power packets
Implementation Method 2
an intruder alarm, wherein the intruder alarm comprises a detection system that is arranged to trigger the intruder alarm when the intruder alarm is armed and the detection system is activated
Data Source
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AI summary
A wireless power transmission system for transmitting power to energy receiving equipment is provided. The system comprising: an intruder alarm, wherein the intruder alarm comprises a person detection system (102) that is arranged to trigger the intruder alarm when the intruder alarm is set and the detection system is activated; a power source (115) for wirelessly transmitting high power packets and low power packets; and energy receiving equipment (108, 109, 110, 113) for receiving the high power packets and low power packets from the power source, wherein the system is arranged such that the power source can only transmit high power packets when the intruder alarm is on and not triggered. A method of using the system is also provided.