1 results about "Collision dynamics" patented technology

The application discloses a kind of vehicle micro-collision capture and trajectory reconstruction method and system under anti-shielding environment, comprising: constructing dynamic shielding perception vehicle semantic space-time graph, locking the visible rigid connection feature site of shielding risk target;Based on phase amplification, the feature site is analyzed in frequency domain micro-motion, and vibration fingerprint feature vector is extracted in combination with vehicle type-modal frequency fingerprint library;By introducing impulse-momentum theorem as the neural network of physical constraint, the vibration fingerprint feature is inferred and regressed collision impulse of collision event;Using the denoising diffusion model with collision impulse as the condition, the vehicle trajectory in the shielding area that meets the collision dynamics is repaired and generated.The application analyzes the micro-vibration of unshielded parts to infer collision, and integrates physical principles into neural networks, solving the problems of difficult micro-collision detection and trajectory distortion under shielding, and generating trajectories that retain collision dynamics characteristics, providing strong evidence for accident liability determination.