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

LANDMARC-based indoor positioning optimization system and method

An indoor positioning and optimization method technology, applied in the direction of positioning, radio wave measurement systems, measurement devices, etc., can solve the problems of disorder in the positioning process, affecting the positioning accuracy, and limited improvement of the system positioning accuracy, so as to improve stability and reliability. Positioning accuracy, the effect of optimizing the calculation method

Inactive Publication Date: 2017-07-14
NANJING LONGYUAN MICROELECTRONICS TECH CO LTD +2
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This positioning method reduces the minimum error of the positioning system, but the average error of target positioning has not been significantly improved, and it cannot fundamentally solve the loophole of zero correlation, which is prone to disorder in the positioning process and affects positioning precision
The optimization scheme proposed in "A Reader Optimal Deployment Method Based on Passive UHF RFID Positioning System" published in 2016 is to obtain the optimal deployment method of each reader by optimizing the particle model. Improve the positioning accuracy, but this patent does not improve the stability of the system, and the degree of improvement in the positioning accuracy of the entire system is also limited

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
  • LANDMARC-based indoor positioning optimization system and method
  • LANDMARC-based indoor positioning optimization system and method
  • LANDMARC-based indoor positioning optimization system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention .

[0032]RFID (Radio Frequency Identification, radio frequency identification technology), using radio frequency for non-contact two-way wireless communication, consists of readers, tags and antennas, etc. It is characterized by low cost but high anti-interference ability and strong penetration RSSI (Received Signal Strength Indication), recei...

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 belongs to the technical field of wireless communication, and specifically relates to a LANDMARC-based indoor positioning optimization system and method; the technical problem to be solved is: to provide a method that can more accurately reflect the positional relationship between a reference tag and a target tag, and effectively improve the system LANDMARC-based indoor positioning optimization system and method based on stability and positioning accuracy; the adopted technical solution is: a LANDMARC-based indoor positioning optimization system and method, including: obtaining the signal strength matrix of the reference tag and the signal strength of the target tag matrix; use the mean square error formula with internal weights to calculate the correlation between the reference tag and the target tag; automatically repair the unreasonable correlation value, so that the correlation value of all tags is non-zero correlation; use the K nearest neighbor method , select K reference tags closest to the target tag; use a weighted sum formula to calculate the position of the target tag; the invention is applicable to the field of wireless communication.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a LANDMARC-based indoor positioning optimization system and method. Background technique [0002] Among many indoor positioning methods, the indoor positioning method based on LANDMARC replaces expensive professional equipment with a large number of cheap tags, reduces the operating cost of the entire system, and has a strong ability to resist environmental interference. Therefore, when domestic and foreign scholars study indoor positioning technology, they often refer to the realization principle of LANDMARC to optimize the positioning system. [0003] The LANDMARC positioning method utilizes the received signal strength indication to realize positioning. When the location of the reference tag and the target tag are close, their RSSI values ​​read in the same RFID reader are also similar. According to this principle, LANDMARC technology calculates th...

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): G01S5/02
CPCG01S5/0278
Inventor 陈勇彭慧珺骆冰清孙知信覃章健叶枫许云龙
Owner NANJING LONGYUAN MICROELECTRONICS TECH CO LTD
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