Bandwidth-Adaptive Log Collection for Vehicle Network Virus Detection

The patent applies local quality by assigning different collection priorities to different log messages based on their importance. High-priority log messages (those essential for virus detection and system safety) are collected with higher priority, while low-priority messages are collected with lower priority or skipped when bandwidth is limited. This selective collection based on local message characteristics resolves the contradiction by ensuring virus detection capability is maintained through high-priority message collection while normal control message transmission is preserved through low-priority message deprioritization.

The patent applies dynamics by making the log message collection priority dynamic rather than static. The collection priority is adjusted in real-time based on the current system state, including resource load conditions and detected virus threats. When a virus threat is detected, the system dynamically increases the collection priority of log messages even under high resource load, ensuring that critical virus countermeasure information is captured. This dynamic adjustment resolves the contradiction by adapting collection behavior to current conditions, preserving bandwidth during normal operation while ensuring complete virus detection when threats are present.

The patent applies parameter changes by modifying the collection parameter (collection priority) of log messages based on network status and message importance. Instead of collecting all log messages uniformly, the system changes the collection parameter dynamically: high-priority log messages are collected with high priority to ensure virus detection accuracy, while low-priority log messages are collected with low priority or skipped to prevent control message congestion and delays. This parameter-based selective collection resolves the contradiction by adjusting collection behavior according to message characteristics and system conditions.