Positioning method and positioning system of location fingerprints

A fingerprint positioning and fingerprint technology, which is applied in the field of mobile communication, can solve the problems of impossibility, heavy calculation workload, high positioning accuracy, etc., and achieve the goals of reducing location fingerprint points, saving calculation workload, high positioning accuracy and timing real-time Effect

Inactive Publication Date: 2013-02-13
SHANGHAI DINGZHU COMM TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a position fingerprint positioning method and a positioning system to solve the problems in...

Method used

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  • Positioning method and positioning system of location fingerprints
  • Positioning method and positioning system of location fingerprints
  • Positioning method and positioning system of location fingerprints

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Experimental program
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no. 1 Embodiment approach

[0021] attached figure 1 Shown is a flowchart of the position fingerprint positioning method described in this specific embodiment, including the following steps.

[0022] S101: Divide the first area where the located point is located into a plurality of second areas, and select a plurality of sampling points in each second area.

[0023] Divide the area to be located (the first area) where the located point is located into multiple areas (the second area) according to the positioning application or according to the actual geographical distribution or partition of the located area, and in each second area Select multiple sampling points.

[0024] S102: Collect the signal reception strength information of the access point of each sampling point, record the coordinate information and area attribute information of the sampling point, and record the sampled information into a database.

[0025] After selecting the sampling points, collect the RSSI (Received Signal Strength Indic...

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Abstract

The invention discloses a positioning method and a positioning system of location fingerprints. The positioning method of location fingerprints comprises the following steps of: (1) dividing a first region, in which a positioned point is located, into a plurality of second regions, and selecting a plurality of sampling points in each second region; (2) collecting information about access point signal receiving strength of each sampling point, recording coordinate information and region attribute information of the sampling points, and inputting the collected information to a database; (3) creating a corresponding table of lists about region attributes and access point medium access control addresses; (4) extracting the access point medium access control addresses of the first m sampling points with the highest access point signal receiving strength, performing retrieval in the corresponding table, and matching n regions having the highest coincidence degree of the access point medium access control addresses with the m sampling points; and (5) extracting location fingerprint points in the n regions from the database, performing data correlation method operation with the sampling information of the positioned points, and acquiring location coordinate information of the positioned points.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a position fingerprint positioning method and a positioning system based on WIFI position fingerprints. Background technique [0002] With the rapid development of wireless local area network (WLAN) technology and the widespread deployment of wireless local area network around the world, a location location technology based on wireless local area network coverage has become a hotspot in the research of location services in indoor environments. Location-based services based on wireless local area networks have the characteristics of simple implementation, wide coverage, high application integration, and high positioning accuracy. [0003] The use of wireless local area network for position positioning technology includes many methods, mainly including the strongest base station method, signal time of arrival (TOA), signal angle of arrival (AOA), signal time difference of arriva...

Claims

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Application Information

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IPC IPC(8): H04W64/00G01S5/02
Inventor 郭磊
Owner SHANGHAI DINGZHU COMM TECH
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