Invention Grant
US08903576B2 Device, program product and computer implemented method for touchless metrology using an inertial navigation system and laser 有权
使用惯性导航系统和激光器的无接触式测量装置,程序产品和计算机实现方法

Device, program product and computer implemented method for touchless metrology using an inertial navigation system and laser
Abstract:
A metrology device, computer program product and computer-implemented method generating survey data without having the device touch subsea objects being surveyed. The metrology device may be used with an underwater vehicle or diving personnel, and may comprise an inertial navigation system having gyroscopes to detect angular velocity and accelerometers for the detection of linear velocity and transported by an underwater robotic apparatus or diver, the inertial navigation system outputting position and orientation data of the device for storage; an aiding device for collecting image data of the subsea objects, the aiding device being positioned so that the distance and orientation between the optical scanner and the inertial navigation system is known; and a computer for using the position information and image data between a successively visited known point to determine the drift of the metrology device and to use the drift of the metrology device to correct measurements of same.
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