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

Inertial sensor network node device and information fusion method thereof

A technology of inertial sensors and network nodes, which is applied in the field of inertial sensor network node devices and their information fusion, can solve problems such as different error characteristics, no optimal inertial network node devices, and no optimal information fusion processing methods, so as to reduce calculation The effect of volume and dimensionality reduction

Inactive Publication Date: 2015-03-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for different types of inertial sensors and the same type of sensors have different error characteristics, there is no effective optimal inertial network node device based on multi-sensor redundant configuration, and there is no effective optimal information fusion processing method

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
  • Inertial sensor network node device and information fusion method thereof
  • Inertial sensor network node device and information fusion method thereof
  • Inertial sensor network node device and information fusion method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as figure 1 As shown, the inertial sensor network node device of the present invention includes two parts: an inertial sensor array 11 and an optimal information fusion system 22 based on DSP (Digital Signal Processing Microprocessor).

[0027] Among them, the inertial sensor array consists of m gyroscopes, where m is a natural number, and n accelerometers, where n is a natural number. The inertial sensor can not only use the same type of inertial sensor, but also can use different types of inertial sensors, and can also use inertial sensors with the same error characteristics or different error characteristics. For example, inertial sensors can use MEMS (micro-electromechanical systems) gyroscopes, MEMS accelerometers, fiber optic gyroscopes, fiber optic accelerometers, etc., and combinations of these different types of sensors. The inertial sensor arr...

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 discloses an inertial sensor network node device and an information fusion method thereof and belongs to the technical field of inertial navigation location. The network node device comprises an angle mount redundancy inertial measurement unit formed by an inertial sensor array (11) and an optimal information fusion system (22) based on a digital signal processing microprocessor. The optimal information fusion system (22) based on the digital signal processing microprocessor comprises a data collection unit (23), a reduced order processing unit (24) based on a virtual sensor, a system model, a measurement model building unit (25), a normalized form building unit (26) based on linear transformation, an optimal filter unit (27) and an inertial sensing network node optimal output unit (28). The information fusion method not only can obtain optimal error state estimation, but also can obtain the optimal output state estimation. The optimal output state can be directly used for inertial navigation resolving.

Description

technical field [0001] The invention relates to an inertial sensor network node device and an information fusion method thereof, belonging to the technical field of inertial navigation and positioning. Background technique [0002] The navigation system using a distributed inertial sensor network is a new navigation system design concept. It is a new generation of low-cost, small-volume, and light-weight navigation sensors in recent years, such as MEMS (micro-electromechanical system) inertial sensors, MSIS, etc. (miniature solid-state inertial sensors), fiber optic gyroscopes, fiber optic accelerometers, etc., as well as new technologies developed on the basis of high-speed and large-capacity embedded microprocessors and distributed modular electronic equipment. The navigation system of the distributed inertial sensor network can provide inertial data and other measurement information for moving carriers (such as aircraft, ships, spacecraft, etc.), and realize navigation po...

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): G01C21/16
Inventor 刘海颖钱颖红华冰杨毅钧陈志明黄帅
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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