Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method of Indoor Positioning Based on Residual Weighting

An indoor positioning and positioning method technology, applied in positioning, instruments, measuring devices, etc., can solve the problems of low reliability and high computational complexity, and achieve the effect of improving accuracy

Active Publication Date: 2020-01-17
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is an ML algorithm that directly uses the reciprocal of the variance of the distance measurement value as the reliability standard of the distance measurement information for weighted positioning, and the reliability is not high.
There is also the RWGH algorithm, which calculates the position and residual error of different ranging signal combinations, and uses the residual error to weight the obtained position to obtain the final position, which has high computational complexity.

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 Method of Indoor Positioning Based on Residual Weighting
  • A Method of Indoor Positioning Based on Residual Weighting
  • A Method of Indoor Positioning Based on Residual Weighting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The invention provides an indoor positioning method based on residual weighting. The basic principle is: obtain the distance information between the mobile point and the fixed base station in space through wireless signals, and use the residual weighting method to screen the measurement information , to determine the accuracy of the distance information according to the change in the residual error calculated again before and after each distance information is removed, so as to obtain its weight in the calculation. When the residual error obtained after removing a certain distance information becomes larger, the distance information is more accurate, and the larger the residual error, the more accurate the information is, and the greater the weight in the calculation. It can be seen that using the method of residual weighting to filter measurement i...

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 provides an indoor positioning method based on residual weighting. The method comprises steps of: obtaining the distance information between a moving point and a fixed base station arranged in the space through a wireless signal; screening measurement information by using a residual weighting method; calculating the influence of the residual by calculating the presence or absence of range finding information; defining the weight of each piece of range finding information in positioning calculation; and then performing weighted positioning calculation. The method is simple and reliable, and can improve indoor positioning accuracy.

Description

technical field [0001] The invention relates to an indoor positioning method, in particular to an indoor positioning method based on distance measurement using wireless signal technology. Background technique [0002] At present, the research on indoor positioning technology focuses on the method based on wireless signal technology. Commonly used positioning methods are divided into indoor positioning methods without ranging and indoor positioning methods based on ranging. Among them, the indoor positioning method based on ranging is convenient and easy to promote, so it is very popular in practical applications. [0003] The indoor positioning method based on ranging refers to measuring the distance between the mobile point and the fixed point arranged in advance through different wireless signal technologies, and finally using the distance information and the position of the fixed point to deduce the relative position of the mobile point in space according to the geometri...

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): G01S5/14
CPCG01S5/14
Inventor 王博杨绍伟肖烜邓志红
Owner BEIJING INSTITUTE OF TECHNOLOGYGY