Power Line Network Isolation via Attenuation Thresholding
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Solution Overview
Problem
Power line communication systems face interference and performance issues due to signals from non-local networks passing through main lines, impacting the performance of local network signals and requiring effective channel allocation and resource management to differentiate and filter out non-local signals.
Innovation Solution
Devices determine a signal threshold based on signal metrics like attenuation values to differentiate local and non-local signals, discard non-local signals, and reallocate resources, allowing for efficient transmission on shared channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If power line communication systems use shared main lines for data transmission, then network coverage and connectivity are improved, but signal interference and performance degradation occur due to non-local network signals
Solution Approach 1:
The patent segments the power line network into local and non-local signal components using signal thresholding. Devices determine attenuation values for received signals and compare them against thresholds to identify and separate local network signals from non-local network signals, allowing selective processing and filtering of each segment
Solution Approach 2:
The patent introduces signal thresholding as an intermediary mechanism between signal reception and processing. By establishing attenuation-based thresholds, the system creates a filtering layer that mediates which signals are accepted as local versus rejected as non-local, preventing harmful interference while maintaining network coverage
2Productivity
If devices receive and process all signals on shared channels, then channel utilization is improved, but performance deteriorates due to interference from non-local signals
Solution Approach 1:
The patent changes the parameter used for signal acceptance from simple presence detection to attenuation value analysis. By measuring and comparing attenuation values against determined thresholds, the system dynamically adjusts which signals are processed, optimizing both channel utilization and signal quality through parameter-based discrimination
Solution Approach 2:
The patent implements feedback through continuous attenuation measurement and threshold comparison. Devices monitor received signal attenuation values, compare them against established thresholds, and adjust their signal acceptance decisions accordingly, creating a feedback loop that maintains optimal channel utilization while filtering interference
3Reliability
If signal thresholding based on attenuation values is implemented, then network isolation and signal quality are improved, but device complexity increases due to additional signal analysis requirements
Solution Approach 1:
The patent replaces complex cryptographic verification mechanisms with simpler attenuation-based thresholding. Instead of requiring full decryption and authentication of each signal, the system substitutes a straightforward physical measurement (attenuation value comparison) to achieve network isolation, reducing computational complexity while maintaining reliability
Data Source
AI summary
A network isolation system may include a network interface, a power level detector, and a processor. The network interface may be configured to receive signals over channels, where the signals include at least one local network signal, e.g. a signal originating on a local network, and at least one non-local network signal, e.g. a signal originating on a non-local network. The power level detector may be configured to determine attenuation values of the received signals. The signal processor may be configured to discard a first signal and reallocate the channel over which the first signal was received, without processing the first signal in a frequency domain, when the attenuation value of the first signal fails to satisfy a signal threshold. In one or more implementations, the signal threshold may differentiate the local network signal from the non-local network signal based at least in part on the determined attenuation values.