US Patent 11970839 Excavator with improved movement sensing

An excavator includes a rotatable house and a bucket operably coupled to the house. An inertial measurement unit (IMU) is operably coupled to the excavator and is configured to provide at least one IMU signal indicative of rotation of the house. A backup camera is disposed to provide a video signal relative to an area behind the excavator. A controller is coupled to the IMU and operably coupled to the backup camera. The controller is configured to receive the at least one IMU signal from the IMU and to generate a position output based on the at least one IMU signal and the video signal from the backup camera.