Wireless Duty Cycle Adjustment for Radiation Exposure Control
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Solution Overview
Problem
Existing wireless communication devices face challenges in reducing electromagnetic radiation exposure while maintaining communication performance, as lowering transmission power increases interference and reduces signal range.
Innovation Solution
Adjusting the duty cycle of wireless transmissions based on monitored activity to balance radiation exposure with communication throughput, by increasing idle time during predefined intervals when exposure thresholds are near, without reducing transmission power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If transmission power is reduced to satisfy radiation thresholds, then electromagnetic radiation exposure is reduced, but communication performance deteriorates due to increased interference and reduced signal range
Solution Approach 1:
The patent applies periodic action by implementing duty cycle control that periodically switches the wireless transmission between active and idle states. Instead of continuously transmitting at reduced power, the system transmits at full power during active periods and remains idle during other periods within a duty cycle, thereby reducing average electromagnetic radiation exposure while maintaining full transmission power during active intervals to preserve communication performance.
2Object-affected harmful factors
If transmission power is reduced to satisfy radiation thresholds, then electromagnetic radiation exposure is reduced, but signal range is reduced
Solution Approach 1:
The system uses periodic transmission cycles with duty cycle control to transmit at full power during active intervals, ensuring sufficient signal range during these periods, while remaining idle during other intervals to reduce average electromagnetic radiation exposure. This approach maintains full signal strength when transmitting rather than continuously transmitting at reduced power.
3Productivity
If duty cycle is increased to maintain communication throughput, then communication performance is maintained, but electromagnetic radiation exposure increases
Solution Approach 1:
The patent implements feedback mechanisms that continuously monitor communication conditions including throughput requirements and electromagnetic radiation exposure levels. Based on this feedback, the system dynamically adjusts the duty cycle to maintain communication performance while staying within radiation thresholds. The feedback loop allows the system to optimize the balance between productivity and radiation exposure in real-time.
Solution Approach 2:
The system applies dynamics by making the duty cycle adjustable and adaptive rather than fixed. The duty cycle can be dynamically modified based on communication conditions, traffic requirements, and radiation threshold constraints, allowing the system to optimize communication throughput while controlling electromagnetic radiation exposure according to actual operating conditions.
Data Source
AI summary
A duty cycle of wireless transmissions of the electronic device is adjusted based on wireless transmission activity. The adjusting considers the electronic device to be idle if the electronic device wirelessly transmits at a power level less than a non-zero power threshold.