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Method and apparatus for using multiple filters for enhanced portable navigation

A portable device and filter technology, applied in navigation, measuring device, surveying and navigation, etc., can solve the problems of no navigation, large random drift rate, high noise, etc.

Inactive Publication Date: 2020-11-10
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These sensors are not widely used for navigation purposes due to high noise, large random drift rates, and frequent changes in the orientation of the device relative to the platform

Method used

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  • Method and apparatus for using multiple filters for enhanced portable navigation
  • Method and apparatus for using multiple filters for enhanced portable navigation
  • Method and apparatus for using multiple filters for enhanced portable navigation

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Embodiment Construction

[0031] At the outset, it is to be understood that the invention is not limited to particular exemplary materials, architectures, procedures, methods or structures, as these may vary. Therefore, while many options, similar or equivalent to those described herein, may be used in actual or inventive embodiments, the preferred materials and methods are described here.

[0032] It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments of the invention only and is not intended to be limiting.

[0033] The following detailed description in relation to the accompanying drawings is intended as a description of exemplary embodiments of the invention and is not intended to represent the only exemplary embodiments in which the invention may be practiced. The term "exemplary" is used throughout the description to mean "serving as an example, instance, or illustration," and is not necessarily to be limited to being preferred or adva...

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Abstract

A method and apparatus for using multiple filters for enhanced portable navigation and apparatus and method for enhancing navigation solutions for portable devices and platforms are disclosed. Motion sensor data corresponding to movement of the portable device may be obtained such that a first filter is configured to output a navigation solution and at least one second filter is configured to use the motion sensor data to generate at least one value. The at least one generated value is then used in the first filter to enhance the navigation solution output by the first filter.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from and benefits from U.S. Provisional Patent Application Serial No. 62 / 045,422, filed September 3, 2014, entitled "Method and Apparatus for Using Multiple Filters for Enhanced Portable Navigation," which The content of the patent application is hereby incorporated by reference. technical field [0003] The present invention relates to a method and apparatus for enhancing the navigation solution of a device on a platform (such as a person, car, or boat) by using multiple filters, where the mobility of the device may or may not be restricted by the platform , and wherein the device can be tilted to any orientation and still provide seamless navigation. Background technique [0004] Inertial navigation of the platform is based on specific forces and angular rates measured by inertial sensors (eg, accelerometers, gyroscopes) in the sensor-containing device and positioning on a moving pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20G01C21/00
CPCG01C21/005G01C21/20G01C21/165G01C21/12G01S19/38
Inventor J·乔吉Z·塞德C·古多尔
Owner TRUSTED POSITIONING