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Method and apparatus for determining misalignment between equipment and a vessel using radius of rotation

A technology of rotation radius and equipment, applied in the direction of gyroscope/steering sensing equipment, measuring device, satellite radio beacon positioning system, etc., can solve the problems of high noise, large random drift rate, no navigation purpose, etc.

Active Publication Date: 2018-12-14
INVENSENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These sensors, due to very high noise, large random drift rates, and frequently changing orientations relative to the host platform, are not currently widely used for navigation purposes

Method used

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  • Method and apparatus for determining misalignment between equipment and a vessel using radius of rotation
  • Method and apparatus for determining misalignment between equipment and a vessel using radius of rotation
  • Method and apparatus for determining misalignment between equipment and a vessel using radius of rotation

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Embodiment Construction

[0032] The present disclosure relates to a method and apparatus for determining misalignment between a device and a platform, such as for example a vessel or a vehicle, using the device's radius of rotation, where the device's mobility may be constrained or unconstrained in the platform. The device can be moved within the platform or tilted in any direction and still provide a seamless navigation solution without degrading the performance of the navigation solution. The sensor has a corresponding coordinate system for the axes of the sensor. The misalignment between the device and the platform corresponds to a misalignment between the coordinate system of the sensor components in the device and the coordinate system of the platform. This method may utilize measurements (readings) from sensors (such as eg accelerometers, gyroscopes, etc.) regardless of the presence or absence of updates of navigation information such as eg Global Navigation Satellite System (GNSS) or WiFi posit...

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Abstract

This public involves a rotating radius using the device to determine the method and device of the device and the platform (such as a ship or vehicle), where the mobility of the device can be restrained or non -bunked in the platform.The device can move or tilt in any direction in the platform, and it still provides seamless navigation solutions without lowering the performance of this navigation solution.This method can use the measurement (read number) of the sensor (such as an acceleration meter, gyroscope, etc.), regardless of the update of navigation information (such as, such as, GNSS or WIFI positioning).

Description

[0001] related application [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 878,336, filed September 16, 2013, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to a method and apparatus for determining misalignment between equipment and a platform, such as for example a vessel or a vehicle, where the mobility of the equipment may be constrained or unconstrained in the platform. Background technique [0004] Inertial navigation of the platform is based on the integration of specific forces and angular velocities measured by inertial sensors (eg, accelerometers, gyroscopes) and the device containing the sensors. Typically, the device is placed inside the platform and is usually bundled to the platform. Such measurements from a device can be used to determine the position, velocity and attitude of the device and / or platform. [0005] The platform may be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/23G01C19/00G01C21/26H04W88/02
CPCG01S19/47G01C25/005G01C21/188G01B5/24G01C19/00G01C21/20
Inventor J·乔吉M·奥姆尔A·努尔丁
Owner INVENSENSE