Adaptive position fingerprint positioning method based on multi-dimensional feature fusion
A multi-dimensional feature and fingerprint positioning technology, applied in the field of mobile Internet, can solve problems such as blocking or scattering, large human body obstruction, weak satellite signal strength, etc., and achieve the effect of improving high availability, efficiency, and positioning accuracy
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[0028] The present invention will be further explained below in conjunction with the drawings:
[0029] Such as figure 1 Shown: The difficulty of indoor positioning technology is high cost and low accuracy. Collecting data in a WIFI environment not only reduces costs, but also helps improve accuracy. In the offline stage, data collection and preprocessing are the first step, then the location fingerprint database is established, and finally the fingerprint data is clustered and divided into blocks.
[0030] The present invention includes the following steps:
[0031] (1) Content-based positioning process:
[0032] 1.1 Set n reference points in the positioning area, with a certain length as the sampling interval, for example: divide the positioning area into 2m*2m small grids, each grid as a reference point, the smart phone can record the grid correspondence through the camera To obtain the surrounding content through the features of the image or video, which is used for content-base...
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