Abstract: A sensor device and a sensor system for monitoring a machine. The sensor device includes a gyroscope sensor unit and/or an acceleration sensor unit, a radio interface which transmits data via a radio signal, and a distance determination unit which analyzes a received radio signal and determines, based on the received radio signal, an antenna distance to an antenna device from which the received radio signal was transmitted. The sensor system includes a plurality of the sensor device and a position determination unit. The position determination unit receives measurement data of the gyroscope sensor unit and/or the acceleration sensor unit, receives the antenna distance of at least two sensor devices, and determines, based on the measurement data and the antenna distances provided, position data for the two sensor devices which indicate a spatial position of the two sensor devices relative to each other.

Abstract: A sensor device and a sensor system for monitoring a machine. The sensor device includes a gyroscope sensor unit and/or an acceleration sensor unit, a radio interface which transmits data via a radio signal, and a distance determination unit which analyzes a received radio signal and determines, based on the received radio signal, an antenna distance to an antenna device from which the received radio signal was transmitted. The sensor system includes a plurality of the sensor device and a position determination unit. The position determination unit receives measurement data of the gyroscope sensor unit and/or the acceleration sensor unit, receives the antenna distance of at least two sensor devices, and determines, based on the measurement data and the antenna distances provided, position data for the two sensor devices which indicate a spatial position of the two sensor devices relative to each other.