Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A single-axis rotary inertial navigation system and its special error self-compensation method

An inertial navigation system and rotary technology, applied in the field of error compensation, can solve problems such as undiscovered, achieve the effect of improving the compensation effect and guaranteeing the maintenance cost

Active Publication Date: 2016-03-09
哈尔滨工程大学科技园发展有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, no introduction of a method similar to this invention has been found in core journals and patent inquiries

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A single-axis rotary inertial navigation system and its special error self-compensation method
  • A single-axis rotary inertial navigation system and its special error self-compensation method
  • A single-axis rotary inertial navigation system and its special error self-compensation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing:

[0025] Explanation of serial numbers in the figure:

[0026] 1...IMU, 2...Three accelerometers, 3...Three gyroscopes, 4...Inversion mechanism, 5...Rotary shaft, 6...IMU mounting surface, 7...IMU output signal, 8...IMU mounting surface inclination adjustment mechanism Output signal, 9...CPU control inclination signal and inclination adjustment mechanism inclination monitoring signal, 10...Transposition mechanism rotation angle signal, 11...Transposition mechanism rotation angle signal and CPU control rotation angle signal.

[0027] The present invention is aimed at the fact that the current single-axis rotary inertial navigation system cannot compensate the constant value drift error and slow-variation random drift error of the inertial device in the direction parallel to the rotation axis, and the use of a two-axis or three-axis rotation scheme will make the system The ove...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a single-shaft rotary type inertial navigation system. The invention further relates to a special error self-compensation method of the single-shaft rotary type inertial navigation system. The single-shaft rotary type inertial navigation system comprises an indexing mechanism and a single-shaft rotary type inertial navigation system inertial measurement unit, wherein the single-shaft rotary type inertial navigation system inertial measurement unit is mounted on an inertial measurement unit mounting plane; the inertial measurement unit mounting plane and the indexing mechanism are connected together; coordinate axes of the single-shaft rotary type inertial navigation system inertial measurement unit are vertical to each other two by two; each coordinate axis is provided with a gyroscope and an accelerometer. According to the single-shaft rotary type inertial navigation system disclosed by the invention, real-time drifting estimation is implemented by adopting a manner of realizing an adjustable inclined angle of an IMU (Inertial Measurement Unit) mounting plane; the inclined angle can be dynamically readjusted at intervals, so as to further improve the compensation effect of the system; a previous process of recalibrating in a laboratory with a high-precision inertial navigation testing rotary table can be finished in field in a use process, and the guarantee and maintenance costs of an operation period of the inertial navigation system are greatly reduced.

Description

technical field [0001] The invention relates to a single-axis rotary inertial navigation system, and also relates to an error compensation method dedicated to the single-axis rotary inertial navigation system. Background technique [0002] The inertial navigation system is currently the most widely used fully autonomous navigation system, because it can achieve all the navigation information it needs by relying entirely on its own information, and its high privacy and reliability determine its pivotal position in the military . The inertial navigation system is mainly composed of inertial devices, gyroscopes and accelerometers. The accuracy of the inertial devices determines the accuracy of the entire inertial navigation system. The error of the inertial device is generally divided into two parts: the constant drift error and the random drift error. Usually, the error of the inertial device will gradually change with time. This will have a great impact on the accuracy of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16G01C25/00
Inventor 高延滨管练武曾建辉王庭军刘施菲何昆鹏王福超郭凯文
Owner 哈尔滨工程大学科技园发展有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com