Image Controller Signature Checks Tuned to Vehicle Speed

The patent applies dynamics by making the integrity checking frequency variable rather than fixed. The checking period is dynamically adjusted based on vehicle speed: at high speeds where image data is more critical for safety, checking frequency increases; at low speeds, checking frequency decreases. This dynamic adaptation resolves the contradiction by optimizing the balance between reliability and power consumption according to actual operational conditions.

The patent changes the parameter of checking period based on vehicle speed. By establishing a correspondence between speed ranges and checking periods (shorter periods at high speeds, longer periods at low speeds), the system adjusts the intensity of integrity verification to match the criticality of image data at different operating conditions, thereby reducing unnecessary power consumption while maintaining safety.

The system dynamically adjusts the checking period based on vehicle speed, performing more frequent checks when the vehicle is moving fast (where image data is more critical) and less frequent checks when moving slow. This dynamic approach ensures that time is not wasted on excessive checking during low-risk conditions while maintaining adequate security during high-risk conditions.

By changing the checking period parameter according to speed thresholds, the system optimizes the trade-off between detection capability and time consumption. The parameter adjustment ensures that integrity verification is performed at appropriate frequencies matching the actual safety requirements at different speeds.