Wireless Communication Abnormality Detection via Multi-Channel Correlation
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Solution Overview
Problem
Existing communication systems inaccurately determine failures in wireless communication devices due to reliance on packet loss rates, leading to mistaken identifications of failures caused by external factors such as interference.
Innovation Solution
A communication system with a master and slave device configuration that uses multiple frequency channels for wireless communication, where a master device obtains and stores communication characteristics, and an abnormality determination unit assesses these characteristics against reference values to accurately identify communication failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If packet loss rate is used to determine communication failure, then failure detection is simplified, but measurement precision deteriorates leading to erroneous failure determinations
Solution Approach 1:
The patent transitions from single-parameter (packet loss rate) failure detection to multi-dimensional analysis by collecting communication characteristics across multiple frequency channels. This dimensional expansion allows the system to distinguish between actual device failures and external interference by analyzing patterns across different frequency dimensions, thereby improving measurement precision while maintaining operational simplicity through automated multi-channel monitoring.
2Device complexity
If single frequency channel is used for communication, then device complexity is reduced, but reliability deteriorates due to vulnerability to external interference
Solution Approach 1:
The patent segments the communication system into multiple frequency channels, allowing communication characteristics to be measured independently on each channel. This segmentation enables the system to identify which specific channel is affected by external interference while maintaining overall communication reliability. The master communication device manages multiple channels separately, collecting characteristics on each channel independently to detect abnormalities more reliably.
3Reliability
If multiple frequency channels are used for communication, then reliability is improved by reducing vulnerability to interference, but device complexity increases
Solution Approach 1:
The patent implements a universal measurement framework where the master communication device performs the same communication characteristic collection process across multiple frequency channels. This multi-functional approach allows a single device to handle multiple channels systematically, managing the increased complexity through standardized procedures. The abnormality determination unit applies unified correlation analysis across all channels, making the system capable of handling multiple functions while maintaining structured complexity management.
4Measurement precision
If communication characteristics are analyzed on a per-channel basis, then measurement precision is improved, but loss of time increases due to processing multiple channels
Solution Approach 1:
The patent merges the analysis of multiple frequency channels by calculating correlation between communication characteristics across channels. Instead of analyzing each channel completely separately and then combining results, the system integrates the characteristics directly in the correlation calculation. This merging approach allows the abnormality determination unit to process multiple channels in a unified manner, improving measurement precision through cross-channel correlation while reducing the time loss that would result from sequential per-channel analysis.
Data Source
AI summary
A communication system includes a master communication device and a plurality of slave communication devices. The master communication device obtains, for each of the plurality of slave communication devices, multiple communication characteristics during wireless communication. The communication system further includes a storage unit storing multiple reference communication characteristics. The system determines an abnormality in wireless communication between the at least one master communication device and each of the plurality of slave communication devices based on strength of correlation between (a) an overall trend of the obtained multiple communication characteristics and (b) an overall trend of the multiple reference communication characteristics stored in the storage unit.