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Positioning method based on WiFi wireless network

A positioning method and wireless network technology, applied in wireless communication, electrical components, etc., can solve the problems of low positioning accuracy, ignoring the characteristics of WiFi signal strength, not using continuous monitoring and positioning, etc., and achieve the effect of high positioning accuracy

Active Publication Date: 2014-06-18
EAST CHINA NORMAL UNIVERSITY
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  • Summary
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AI Technical Summary

Problems solved by technology

[0011] The present invention overcomes the defects of low positioning accuracy in the prior art, needs additional equipment, does not use continuous monitoring and positioning, and ignores the characteristics of WiFi signal strength itself, and proposes a positioning method based on WiFi wireless network

Method used

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  • Positioning method based on WiFi wireless network
  • Positioning method based on WiFi wireless network
  • Positioning method based on WiFi wireless network

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Embodiment Construction

[0050] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings. The process, conditions, experimental methods, etc. for implementing the present invention, except for the content specifically mentioned below, are common knowledge and common knowledge in this field, and the present invention has no special limitation content.

[0051] The positioning method of the present invention is a WiFi-based positioning method that fully considers the instability of signal strength and the motion trajectory of moving objects, and is based on the fingerprint identification method for final positioning, and is especially suitable for indoor positioning. The present invention includes offline phase processing and online phase processing, such as Figure 10 shown.

[0052] figure 1 What is shown is a floor plan for deploying WiFi. The implementation environment of this embodiment is the first floor of a build...

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Abstract

The invention discloses a positioning method based on a WiFi wireless network. The positioning method comprises offline stage processing and online stage processing. The offline stage processing is that signal intensity of reference points is acquired and stored in a database so that a fingerprint database is acquired. The online stage processing is that weight is arranged according to instability of WiFi signal intensity, candidate ranges are limited according to moving tracks of moving objects, and positions of the moving objects are confirmed in combination with the fingerprint database. When the moving objects are positioned, instability of WiFi signal intensity and the moving tracks of the moving objects are fully considered so that a problem of low positioning accuracy caused by instability of WiFi signal intensity is solved, and thus positioning accuracy is enhanced.

Description

technical field [0001] The present invention relates to wireless positioning technology, in particular to a positioning method based on WiFi wireless network. Background technique [0002] People always hope that the electronic devices around them can sense the environment and automatically take actions that meet the needs of users according to changes in the environment. IDC (Internet Data Center) predicts that the global sales of smart devices will reach 1.1 billion this year, and by 2016, the global sales will double to 2 billion. There are indications that the major barriers preventing people from leaping from the "personal computing era" to the "ubiquitous computing era" have collapsed. There are indications that the major barriers preventing people from leaping from the "personal computing era" to the "ubiquitous computing era" have collapsed. In ubiquitous computing, devices need to be able to sense the environment, rather than user input. Local area wireless netwo...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 周遥金澈清周傲英
Owner EAST CHINA NORMAL UNIVERSITY
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