Anti-NLOS interference visible light positioning method and system based on linear regression model

A technology of linear regression model and positioning method, applied in the field of positioning, can solve the problems of NLOS interference, decreased positioning accuracy, and affecting positioning accuracy, and achieve the effect of eliminating influence, reducing requirements, and improving positioning accuracy

Active Publication Date: 2020-09-15
PEKING UNIV +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for VLC positioning in indoor environments, the geometric positioning method is low in cost and simple to implement, and has been widely used, but it is seriously affected by NLOS (Not line of sight, non-line of sight transmission) interference, resulting in a decrease in positioning accuracy, especially on walls. Surrounding locations are particularly affected by NLOS interference, which often leads to a sharp drop in positioning accuracy
Aiming at the above-mentioned i

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
  • Anti-NLOS interference visible light positioning method and system based on linear regression model
  • Anti-NLOS interference visible light positioning method and system based on linear regression model
  • Anti-NLOS interference visible light positioning method and system based on linear regression model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] refer to figure 1 As shown, the present invention uses a linear regression model to estimate the NLOS interference intensity received by the receiving module, and after obtaining a more accurate distance estimate, uses the traditional geometric positioning method to calculate the position of the receiving module. figure 2 It is the process flow of the linear regression model establishment and application method in the present invention.

[0053] The present invention builds a visible light device in the positioning area. The device includes a transmitting module, a receiving module, a training module, and a positioning module. The structure of the visible light positioning system is as follows: image 3 As shown, the tran...

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 anti-NLOS interference visible light positioning method and system based on a linear regression model. The anti-NLOS interference visible light positioning system comprisesa transmitting module, a receiving module, a training module and a positioning module. The transmitting module comprises a plurality of LED lamps, a signal generator, a baseband modulation module anda driving circuit; each LED lamp is provided with an ID; the receiving module comprises an optical filter, a photoelectric detector, an amplifier, an analog-to-digital converter and a microprocessor,and is used for receiving signals of different LED lamps in different time slices in one period and extracting the intensity of the received signals. According to the method, non-line-of-sight transmission (NLOS) interference is removed by adopting a machine learning method, and then, positioning is realized by adopting a geometric positioning method, so that the influence of the NLOS interferenceon positioning can be eliminated, the positioning precision is improved, and the requirement of an existing fingerprint positioning method based on machine learning on positioning data is also reduced.

Description

technical field [0001] The invention belongs to the technical field of positioning, and in particular relates to a linear regression model-based anti-NLOS (non-line-of-sight transmission) interference visible light positioning method and system thereof. Background technique [0002] With the wide application of positioning and navigation technology and the continuous diversity of location service applications, indoor positioning technology has gradually entered people's field of vision, and the related demand has also continued to grow. Existing indoor positioning technologies mainly include: infrared technology, ultrasonic technology, Bluetooth technology, WiFi technology, ultra-wideband technology, etc. But these methods do not have a positioning system that can simultaneously have the advantages of low cost, high positioning accuracy, simple structure, and low power consumption, and does not have the characteristics of wide application. [0003] In recent years, with the...

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
IPC IPC(8): G01C21/20G01S5/16G06F17/18
CPCG01C21/206G01S5/16G06F17/18
Inventor 张辉陈晨程翔李航
Owner PEKING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap