Self-calibrating inertial positioning and orientating device

Abstract

The invention discloses a self-calibrating inertial positioning and orientating device, which comprises a base, a framework, a sliding damping component, an outer shaft system, an inner shaft system, an outer shaft locking component and an entire machine locking component, wherein the outer shaft system is arranged on the framework; the inner shaft system is arranged on the outer shaft system; the outer shaft locking component is arranged on the outer shaft system; the entire machine locking component is arranged on the base; the framework is arranged on the bottom surface of the base through the sliding damping component; the framework is in locking fit with the side face of the base through the entire machine locking component; the outer shaft system is in locking fit with the framework through the outer shaft locking component; an inertial group is arranged on the inner shaft system; and a compression component for compressing and fixing the inertial group is arranged between the outer shaft system and the inner shaft system. An inertial group self-calibrating system is formed by the outer shaft system and the inner shaft system; the inner shaft system can be orientated by rotating around a vertical shaft; and the inertial group is conveniently linked with a carrier by locking the inner and outer shaft systems and the framework, so that inertia positioning and posture conveying functions can be realized. According to the device, inertia positioning and orientating and conveying of a posture reference are realized, and inertial group parameters are calibrated automatically.

Description

technical field [0001] The invention belongs to the field of inertial positioning and orientation, in particular to a self-calibrating inertial positioning and orientation device. Background technique [0002] Inertial positioning and orientation devices are mainly used in high mobility weaponry systems, mining, tunnel construction, geodetic surveying and other fields that need to establish azimuth references. [0003] The existing fiber optic gyro north finder is a high-precision inertial instrument that independently indicates the orientation, and it can give the angle between the carrier and the true north without inputting the latitude value. Its structure adopts a single-axis design, and only one fiber optic gyroscope is used for the sensitive element, which only has the function of directional north-seeking. [0004] The inertial measurement device includes an accelerometer and a gyroscope, also known as an inertial navigation combination (referred to as an inertial g...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a self-calibrating inertial positioning and orientation device for the single-function problem of the current inertial positioning and orientation device, which integrates inertial positioning and orientation, attitude transmission and inertial group self-calibration

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