Vehicular Communication Device Anomaly Detection
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Solution Overview
Problem
Existing vehicular communication devices face challenges in accurately determining anomalies in narrow area communicators due to dynamic changes in communication environments, making it difficult to distinguish between actual anomalies and performance degradation caused by environmental factors.
Innovation Solution
A vehicular communication device that receives communication performance indexes from surrounding vehicles, sets a reference value based on these indexes, and uses this reference to accurately determine anomalies in the targeted narrow area communicator, distinguishing between anomalies and environmental influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication performance index is used to determine anomaly of narrow area communicator, then anomaly detection capability is improved, but measurement precision deteriorates due to environmental interference
Solution Approach 1:
The patent introduces surrounding vehicles as intermediary reference objects. Instead of directly measuring the targeted narrow area communicator's performance in isolation, the system uses communication performance indexes from multiple surrounding vehicles as reference mediators. These intermediaries provide a comparative baseline that helps distinguish between actual anomalies and environmental variations, thereby improving measurement precision without sacrificing anomaly detection capability.
Solution Approach 2:
The patent changes the reference parameter from a fixed threshold to a dynamic reference value derived from surrounding vehicles' communication performance indexes. By continuously updating the reference value based on the statistical characteristics (e.g., average, median) of multiple surrounding vehicles, the system adapts to environmental changes while maintaining accurate anomaly detection. This parameter transformation resolves the contradiction by making the measurement system resilient to environmental interference.
2Device complexity
If fixed threshold is used for anomaly determination, then device complexity is reduced, but adaptability deteriorates in dynamic communication environments
Solution Approach 1:
The patent transforms the static anomaly determination mechanism into a dynamic one by continuously updating the reference value based on surrounding vehicles' communication performance indexes. The reference value adapts to changing communication environments (e.g., urban canyons, traffic density) while the anomaly determination logic remains relatively simple. This dynamic approach maintains low device complexity while significantly improving environmental adaptability.
Solution Approach 2:
The system performs preliminary actions by continuously collecting and analyzing communication performance indexes from surrounding vehicles to establish an up-to-date reference value before anomaly determination is needed. This preliminary data gathering and processing enables the system to quickly adapt to new environments without increasing the complexity of the actual anomaly detection mechanism at the moment of need.
Data Source
AI summary
A vehicular communication device is provided. The vehicular communication device includes a reception section that receives, from a periphery vehicle equipped with a narrow area communicator, a communication performance index representing performance of the narrow area communicator, and controller. The controller includes a reference value setup section that successively settles a reference value as a criterion for the communication performance index based on the communication performance indexes received from multiple periphery vehicles, an acquisition section that acquires the communication performance index for a targeted narrow area communicator serving as the narrow area communicator targeted at anomaly determination, and an anomaly determination section that determines an anomaly of the targeted narrow area communicator based on comparison between the reference value settled by the reference value setup section and the communication performance index acquired by the acquisition section for the targeted narrow area communicator.