Wireless Device Power Management via Dynamic RF Transmission
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Solution Overview
Problem
Wirelessly communicating electronic devices, such as those in home automation systems, face challenges in ensuring reliable radiofrequency message transmission due to unpredictable energy levels in their power storage means, which can lead to incomplete or interrupted transmissions.
Innovation Solution
An operating method for a wirelessly communicating electronic device that optimizes energy consumption by determining available power and adjusting transmission parameters, including the operating class and operating point of the radiofrequency transmitter, to ensure successful message transmission based on the energy available in the power storage means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device transmits radiofrequency messages using a fixed power level, then the transmission simplicity is maintained, but the reliability of complete message transmission deteriorates when energy in the power storage means is insufficient
Solution Approach 1:
The transmission power level is made dynamic rather than fixed. The control circuit adjusts the transmission power adaptively based on the available energy in the power storage means, allowing the system to optimize between reliability and energy consumption in real-time conditions
Solution Approach 2:
A feedback mechanism is implemented where the control circuit continuously monitors the energy level in the power storage means and uses this information to adjust the transmission power level accordingly, ensuring reliable transmission while adapting to changing energy conditions
2Reliability
If the device uses high transmission power to ensure complete message transmission, then the reliability improves, but the energy consumption increases reducing operational duration
Solution Approach 1:
The transmission power is dynamically adjusted based on available energy levels. When energy is abundant, higher power ensures reliable transmission; when energy is limited, power is reduced to conserve energy while maintaining acceptable transmission reliability
Solution Approach 2:
The transmission power parameter is changed adaptively based on the energy state of the power storage means. The system modifies this critical parameter in real-time to optimize the balance between transmission reliability and energy conservation
3Use of energy by moving object
If the device determines transmission parameters based on available energy, then the energy optimization improves, but the complexity of the control circuit increases
Solution Approach 1:
The control circuit autonomously determines transmission parameters by monitoring its own energy state and making independent decisions about power levels without requiring external control or complex external systems
Solution Approach 2:
The control circuit uses feedback from energy level monitoring to automatically adjust transmission parameters, creating a self-regulating system that optimizes energy usage based on real-time conditions
Data Source
AI summary
Disclosed is an operating method for a wirelessly communicating electronic device, including the following steps: a) acquisition of a radio-frequency frame representative of at least one data item intended to be transmitted by the radio-frequency transmitter in a radio-frequency message; b) determination of the amount of power available in the power storage; c) determination, by the control circuit, of the length of the radio-frequency message to be transmitted; d) determination of transmission parameters of the radio-frequency transmitter, according to the values determined for the length of the message and the amount of power available in the power storage; e) and transmission of the message by the transmitter, using the determined transmission parameters.