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

Single-particle filtering navigation device and method based on MEMS (Micro-electromechanical System) sensor and VLC (Visible Light Communication) positioning fusion

A technology of a navigation device and a navigation method, which is applied in directions such as navigation, measurement device, mapping and navigation, and can solve the problems of high cost, poor stability, and complex multi-sensor combined positioning algorithm.

Active Publication Date: 2017-10-13
SOUTHEAST UNIV
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some problems in these schemes: 1) Compared with single-sensor positioning, multi-sensor combined positioning algorithms are complex and costly; Medium stability is poor
3) In the scene where the signal is frequently blocked, the target position estimated by the positioning system only through the VLC data and the filter still has a large deviation from the actual position

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
  • Single-particle filtering navigation device and method based on MEMS (Micro-electromechanical System) sensor and VLC (Visible Light Communication) positioning fusion
  • Single-particle filtering navigation device and method based on MEMS (Micro-electromechanical System) sensor and VLC (Visible Light Communication) positioning fusion
  • Single-particle filtering navigation device and method based on MEMS (Micro-electromechanical System) sensor and VLC (Visible Light Communication) positioning fusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] Such as figure 1 As shown, the attitude measurement and positioning single-element filter navigation device based on MEMS (Micro-Electromechanical Systems, micro-electromechanical systems) sensor and VLC positioning fusion includes: MEMS sensor, inertial navigation system (Inertial Navigation System, INS) module, visible light communication ( Visible Light Communication, VLC) positioning module, pedestrian dead reckoning (Pedestrian Dead Reckoning, PDR) positioning module and attitude measurement and positioning single particle filter (Single Particle Filter, S-PF) module, where MEMS sensors include accelerometers, gyroscopes and magnetometer.

[0059] Acceleration signals measured by the accelerometer in the XYZ direction are transmitted to the PDR positioning module for position estimation, and the other is transmitted to the INS m...

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 a single-particle filtering navigation device and method based on an MEMS (Micro-electromechanical System) sensor and VLC (Visible Light Communication) positioning fusion. The single-particle filtering navigation device comprises the MEMS sensor, an INS (Inertial Navigation System) module, a VLC positioning module, a PDR (Pedestrian Dead Reckoning) positioning module and an attitude determination positioning single-particle filtering module; in the single-particle filtering navigation device, an error equation based on INS inertial navigation mechanization is used as a system equation of a fusion filter and is used for updating particles of a particle swarm. An observation equation comprises updating of VLC positioning information, updating of PDR positioning information and updating of observation quantity of a magnetometer and is used for calculating the weight of each particle. Attitude information is output to the VLC positioning module and the PDR positioning module. According to the single-particle filtering navigation device and method, disclosed by the invention, the attitude information of a VLC receiver is accurately estimated for the first time in the field of VLC positioning by utilizing fusion attitude determination, so that the problem that the VLC positioning is easily influenced by the attitude of the receiver and the positioning is not continuous under the condition that a light signal is shielded is solved and influences, caused by the attitudes, on the VLC positioning are eliminated.

Description

technical field [0001] The invention relates to an intelligent positioning device and method, in particular to a single particle filter navigation device and method based on MEMS sensor and VLC positioning fusion. Background technique [0002] With the development and application of indoor positioning technology, the indoor positioning technology based on visible light communication is also rising rapidly and has received widespread attention. In an environment with sufficient indoor light sources, the optical signals modulated by the multiplexing protocol are detected by optical sensors and other equipment, and the signal data of different light sources can be separated through signal demodulation technology, so that the positioning target relative to each light source can be calculated in combination with environmental parameters. The distance or angle information, and finally through the positioning algorithm such as trilateral positioning can complete the target position...

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 Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 庄园华鲁驰戚隆宁
Owner SOUTHEAST UNIV
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