WIFI (Wireless Fidelity) positioning method

A positioning method and equation technology, applied in positioning, transmission monitoring, measuring devices, etc., can solve problems such as spatial fingerprint interference, inconvenient operation and database maintenance, and achieve the effect of convenient maintenance and low operating costs

Inactive Publication Date: 2013-05-22
南京烽火星空通信发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the WIFI positioning method has inherent shortcomings, that is, it is difficult to use the time difference positioning of GPS to determine the position of the terminal, nor can it use the time difference of arrival in mobile communication to complete the positioning, and can only use the signal strength to complete the positioning
At present, the idea of ​​WIFI positioning is based on the method of spatial fingerprint. First, the signal strength of the point to be positioned is measured and recorded int

Method used

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  • WIFI (Wireless Fidelity) positioning method

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Embodiment Construction

[0021] The concrete implementation steps of this application are as follows:

[0022] attached figure 1 The principle diagram for the positioning of the entire WIFI: (1) 101 is to install and deploy the AP after optimizing the deployment position of the AP; (2) 102 is to calibrate the three-dimensional coordinates and signal strength of each AP; (3) 103 In order for the SSID message broadcast by the AP to carry the AP's three-dimensional coordinates, signal standard strength and OID information; the first three steps complete the work of the AP side. (4) 104 is for the terminal to receive broadcast information; (5) 105 is for the terminal to decode the three-dimensional coordinates and signal standard strength of the AP according to the received SSID; (6) 106 is for the terminal to measure the signal strength of the AP corresponding to the SSID; (7) 107 Calculate the position of the terminal for the terminal based on the three-dimensional coordinates, signal standard strength...

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Abstract

The invention discloses a method for determining a WIFI (Wireless Fidelity) terminal position through an SSID (Service Set Identifier) and signal strength. An AP (Access Point) tells a terminal a position of the AP through information of an OID (Object Identifier), a three-dimensional position and standard signal strength carried in the SSID of a broadcast; the terminal combines measured signal strength of the AP through obtained three-dimensional position and standard signal strength which are decoded from the SSID to determine distance with the AP; the terminal can calculate an accurate self-position after collecting information of more than three strong enough signals; and the terminal can utilizes information of other APs to perform trimming and correction on the position as well. A WIFI positioning method has the advantages of being capable of rapidly achieving the signal positioning, being high in positioning accuracy compared with a method utilizing a spatial signal fingerprint technology, not needing frequently update spatial signal fingerprint information like the spatial signal fingerprint technology and reducing the maintenance costs.

Description

technical field [0001] The present application relates to a WIFI positioning method, in particular to a WIFI positioning method capable of performing position estimation and positioning within a designated area. Background technique [0002] Location-based service (LBS) is a new business model in the transition from 3G communication to 4G communication era. Deploying accurate and personalized business services for service providers through location-based services can greatly improve customer experience and facilitate business transactions. Therefore, It is one of the hot topics that have become popular recently, and it is also the target of attention of various venture capitalists. [0003] At present, WIFI positioning methods have inherent deficiencies, that is, it is difficult to use GPS time difference positioning to determine the location of the terminal, nor can it use the arrival time difference in mobile communication to complete positioning, and can only use signal s...

Claims

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Application Information

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IPC IPC(8): H04W64/00H04B17/00G01S5/02
Inventor 汪洋彭艳兵邢苏霄丁荟
Owner 南京烽火星空通信发展有限公司
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