Tachograph system, tachograph equipment and procedures for operating a tachograph system

摘要

The invention concerns a tachograph system (1),Comprises a tachograph device (3) and a sensor device designed as a pulse generator (4),where the tachograph device (3) and the sensor device (4) are interconnected for data transmission via a cryptographically protected communication interface (5) and the tachograph device (3) is equipped for this purpose, Receive data at a receiving interface (6) of the tachograph device (3) and verify the authenticity of the data received in accordance with a predetermined test procedure. It is intended that the tachograph device (3) is designed to receive sensor update data (9) to update a sensor operating software (4) at the receiving interface (6),verify the sensor update data (9) according to the pre-defined test procedure, and update the operating software of the sensor device (4) according to the verified sensor update data (9) according to a predetermined update procedure via the cryptographically protected communication interface (5) in the sensor device (4).