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Indoor WLAN user location and behavior analysis method based on line segment density

A behavior analysis and line segment technology, which can be used in services based on location information, services based on specific environments, etc., and can solve problems such as large manpower and time overhead.

Active Publication Date: 2019-03-05
重庆中邮信科集团股份有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for indoor WLAN user positioning and behavior analysis based on line segment density, which can effectively solve the problem of a large amount of manpower and time expenditure required for the construction of a traditional location fingerprint database, and can realize the user in the target scene. Behavior analysis

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  • Indoor WLAN user location and behavior analysis method based on line segment density
  • Indoor WLAN user location and behavior analysis method based on line segment density
  • Indoor WLAN user location and behavior analysis method based on line segment density

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Embodiment Construction

[0067] The present invention will be further described below in conjunction with accompanying drawing.

[0068] like Figure 1a and Figure 1b The shown indoor WLAN user location and behavior analysis method based on line segment density includes the following steps:

[0069] Step 1. Divide the target area into N Area sub-region.

[0070] Step 2: Collect the N of moving users in the target area seq RSS (ReceivedSignal Strength) sequence, denoted as Among them, the i-th RSS sequence Specifically expressed as:

[0071]

[0072] Among them, rss ij =(rss ij1 ,rss ij2 ,...,rss ijk )(1≤j≤M i )for The jth signal vector in M i is the sequence length of the i-th RSS sequence, that is, the number of signal vectors contained in the i-th RSS sequence, k 1 is the number of AP (AccessPoint), rss ijl1 (1≤l 1 ≤k 1 ) is from the l-th signal vector in the i-th RSS sequence 1 The signal strength value of an access point AP.

[0073] Step 3: Perform wavelet denoising proce...

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Abstract

The invention discloses an indoor WLAN user positioning and behavior analysis method based on a line segment density. The method comprises the steps of dividing a target area into a plurality of sub-areas firstly, observing a movement path mode of a user in the area, and meanwhile, collecting an RSS sequence of the user in the area; then, carrying out dimensionality reduction processing on the collected RSS sequence by adopting a multidimensional scaling MDS method to obtain a corresponding path coordinate of each RSS sequence in a two-dimensional signal space, and sequentially connecting the path coordinates to a line segment according to a timestamp sequence; then, clustering the line segment to obtain a signal logic diagram and obtaining a physical logic diagram according to a sub-area connection relation; and finally, establishing hotspot mapping of the signal logic diagram and the physical logic diagram according to a transition probability between line segment clusters in the signal logic diagram and the transition probability between the sub-areas in the physical logic diagram, in order to realize the positioning and behavior analysis of the moving user. By adopting the method disclosed by the invention, manpower and time costs are reduced, and the positioning and behavior analysis of the moving user can be completed.

Description

technical field [0001] The invention belongs to indoor positioning technology, in particular to an indoor WLAN user positioning and behavior analysis method based on line segment density. Background technique [0002] With the rapid development of mobile communication, LBS (Location Based Service) has received more and more attention. In indoor places (such as shopping malls, airports and underground parking lots, etc.), the existing outdoor positioning systems, such as GPS (Global Positioning System), due to the shelter of buildings and other facilities, it is difficult to achieve accurate positioning indoors. At the same time, due to the large-scale deployment of WLAN (Wireless Local Area Network) and the widespread popularity of WLAN high-speed wireless access, more and more people pay attention to positioning indoor users by using existing WLAN infrastructure. Among them, The indoor WLAN positioning technology based on RSS (Received Signal Strength) has been extensively...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/021H04W4/33
CPCH04W4/04
Inventor 周牧王羽王烟濛田增山何维
Owner 重庆中邮信科集团股份有限公司
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