Target Locating Device and Methods

摘要

A target location device has a video camera, a range finder, a self location module and an inertial measurement unit. The device provides a video display including video output of the camera and an object marker such as a cross-hair overlayed on the video output for aiming the camera on a reference point or on a target in the video output. The range finder determines a distance from the device to the target. The self location module identifies the geographic location of the device. The inertial measurement unit includes at least one gyro for providing outputs corresponding to the location of the reference point and the target. Video stabilization may be use to allow accurate placement of the object marker on the target or reference point. Automatic range finder firing and gyroscope error compensation are also provided.

主权项

1. A device comprising:
a gyroscope; a controller coupled to the gyroscope and configured to:
receive a reference point gyroscope output from the gyroscope corresponding to a position of a reference point;receive a target gyroscope output from the gyroscope corresponding to a position of a target;receive an updated reference point gyroscope output from the gyroscope corresponding to the position of the reference point;calculate a gyroscope error based on the reference point gyroscope output and the updated reference point gyroscope output; andreset the gyroscope based on the calculated gyroscope error to compensate for drift.