Patent ID: 9074888
Filing Date: 2015-07-07
Classification: G01C

Abstract:
1. A method of compensating for drift in a vehicle-mounted gyroscope, the method comprising: receiving, from a first sensor, an indication that a vehicle supporting a gyroscope has stopped moving; receiving, from a second sensor, an indication that the stabilized section is not being commanded to move; receiving rotation-indicating data caused by the gyroscope, the rotation-indicating data indicating rotation of a stabilized section of a gimbal over a time period when the vehicle is not moving and the stabilized section is not being commanded to move; computing, using at least one processor operatively coupled with a memory, a gyroscopic drift rate of the gyroscope from the rotation-indicating data; receiving an indication that the vehicle has started moving or the stabilized section is being commanded to move; and compensating the gimbal stabilized section supported by the vehicle using the gyroscopic drift rate.