Method Of Operating A Data Recording Device And System

A method of operating a data recording device for Autonomous Driving or Advanced Driver Assistant Systems applications for vehicles, the data recording device comprising:

• a data logging unit, a computing unit, a storage unit and a relevancy determination unit including at least one relevancy determination module, the storage unit including a circular buffer and a persistent storage region,
• wherein the method comprises the steps of:
• retrieving, with the data logging unit and the computing unit, sensor data acquired by in-vehicle sensors,
• storing, with the data logging unit, the sensor data in the circular buffer,
• analyzing, with the computing unit, analyzing the sensor data and using the sensor data to derive at least one of perception results or neural network embeddings from the retrieved sensor data,
• retrieving and storing, with the relevancy determination unit, the at least one of the perception results or the neural network embeddings,
• deciding, with the relevancy determination unit, whether the retrieved at least one of the perception results or the neural network embeddings are considered relevant or irrelevant,
• triggering, with the relevancy determination unit, a transfer of the sensor data from the circular buffer to the persistent storage region for persistent storage of the sensor data in case the at least one of the perception results or the neural network embeddings corresponding to the sensor data are considered relevant by the relevancy determination unit.