RF Sensing Node Reconfiguration for Interference Buildup
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Solution Overview
Problem
The quality of radiofrequency-based sensing is adversely affected by the presence of substances that interfere with the propagation of radiofrequency signals, leading to suboptimal performance in environments with elements like mud, dust, and debris.
Innovation Solution
A method to reconfigure a radiofrequency-based sensing system by determining the level of accumulation and type of interfering elements, and dynamically adjusting the roles of nodes to transmit or receive signals based on these factors, ensuring optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nodes transmit radiofrequency signals in a fixed configuration, then the system structure is simple, but the sensing quality deteriorates when interfering substances are present
Solution Approach 1:
The patent implements dynamic reconfiguration of node roles (transmitter/receiver) based on real-time detection of interfering substances. The system transitions from a static node configuration to a dynamic one where nodes can switch functions to bypass interference, thereby maintaining sensing quality without permanent structural changes.
Solution Approach 2:
The system changes operational parameters (node roles, transmission/reception assignments) in response to detected interference levels. When interfering substances are detected above a threshold, the system modifies which nodes transmit and which receive, adapting the configuration to maintain optimal sensing performance despite environmental changes.
2Reliability
If nodes are reconfigured to avoid interfering substances, then sensing performance improves, but the system requires complex detection and control mechanisms
Solution Approach 1:
The system performs self-diagnosis by detecting interfering substances and automatically reconfigures node roles without external intervention. The sensing system monitors its own performance degradation and triggers reconfiguration autonomously, reducing the need for complex external control mechanisms while maintaining signal quality.
Solution Approach 2:
The system implements a feedback loop where sensing quality is continuously monitored, and when degradation due to interference is detected, the system triggers reconfiguration. This feedback mechanism ensures that reconfiguration only occurs when necessary, balancing performance improvement with controlled complexity.
3Measurement precision
If the system dynamically adjusts node roles based on interference, then sensing accuracy is maintained, but the response time increases due to detection and reconfiguration steps
Solution Approach 1:
The system continuously monitors for interfering substances in advance, maintaining readiness to reconfigure. By detecting interference early and having pre-defined reconfiguration protocols, the system minimizes the actual reconfiguration time when interference is detected, preserving detection accuracy while reducing time loss.
Data Source
AI summary
A method of reconfiguring a radiofrequency-based sensing system comprising at least two nodes, wherein the at least two nodes are arranged for transmitting and/or receiving a radiofrequency signal for presence and/or location detection and for performing network communication in an environment; wherein the method comprises the steps of: obtaining a signal indicative of a level of accumulation of radiofrequency transmission affecting elements in proximity of at least one of the at least two nodes; determining whether the level of accumulation exceeds a threshold; and wherein if the level of accumulation exceeds the threshold; determining, based on the obtained signal, which one of the at least two nodes to act as a transmitter to transmit the radiofrequency signal for presence and/or location detection and which one of the at least two nodes to act as a receiver to receive the transmitted radiofrequency signal for presence and/or location detection, and instructing the determined one of the at least two nodes to act as a transmitter and the determined one of the at least two nodes to act as a receiver.