Home Automation Receiver Signal Power Blocking
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Solution Overview
Problem
Home automation systems face energy inefficiency due to untimely awakenings and unnecessary signal processing caused by parasitic signals from external transmitters, leading to increased energy consumption and disturbances in wireless communication.
Innovation Solution
A method that involves determining and recording signal power levels causing unnecessary awakenings, blocking these levels to prevent further analysis, and dynamically adjusting the blocking criteria based on occurrence and protocol verification, allowing the receiver to quickly identify intended signals and ignore parasitic ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver remains listening until hearing a complete frame, then the signal detection reliability is improved, but the energy consumption increases
Solution Approach 1:
The receiver performs preliminary actions by measuring signal strength and analyzing frame structure before committing to full signal processing. This allows the receiver to discard weak or malformed signals early, avoiding the energy cost of processing complete frames that would ultimately be rejected.
Solution Approach 2:
The signal reception process is segmented into distinct stages: initial signal detection, strength measurement, frame structure analysis, and complete frame processing. By dividing the process this way, the system can exit early at any stage if conditions aren't met, preventing unnecessary energy consumption while maintaining reliable detection of valid signals.
2Reliability
If the receiver processes all received signals, then the signal analysis completeness is improved, but the energy consumption increases
Solution Approach 1:
The receiver dynamically adjusts its processing depth based on real-time signal characteristics. Strong signals with valid frame structures receive full processing, while weak or malformed signals are discarded at earlier stages. This dynamic approach ensures complete analysis of valid signals while minimizing energy waste on invalid ones.
Solution Approach 2:
The system changes processing parameters based on signal quality metrics. When signal strength falls below thresholds or frame structure validation fails, the receiver changes its behavior from full processing to partial processing or immediate discard, optimizing the balance between analysis completeness and energy consumption.
3Measurement precision
If the receiver activates microprocessor for signal analysis, then the signal processing accuracy is improved, but the energy consumption increases
Solution Approach 1:
Before activating the power-intensive microprocessor, the receiver performs preliminary checks using lower-power mechanisms to measure signal strength and verify basic frame structure. Only signals that pass these preliminary checks trigger microprocessor activation, ensuring high processing accuracy is applied only when necessary and justified by signal quality.
Data Source
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AI summary
Method of communicating by radio frequencies in a home-automation installation comprising at least one command transmitter and at least one command receiver, comprising the following steps: receiving by virtue of a radiofrequency receiver of a command receiver a signal transmitted by a command transmitter, - measuring the power level of the signal received, comparing the power level measured with a power level recorded in a memory of powers that are blocked at the level of the command receiver, in the case where the measured power level corresponds to the power level recorded in memory, not processing the signal received.