Multi-base-station positioning method based on probability fingerprints

A base station positioning and probabilistic technology, applied in wireless communication, electrical components, etc., can solve problems affecting positioning accuracy, base station signal fluctuations, etc., and achieve the effects of improving positioning accuracy, precise indoor positioning applications, and improving accuracy

Active Publication Date: 2014-02-05
XIAMEN YAXON NETWORKS CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a base station positioning method based on probabilistic fingerprints, which overcomes the problem that the traditional positioning method based on base station signal strength is easily affected by base station signal fluctuations, thus affecting the

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  • Multi-base-station positioning method based on probability fingerprints

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[0032] Such as figure 1 Shown is a base station positioning system based on probabilistic fingerprints. The present invention uses the 2G or 3G communication module of the mobile phone to collect the currently received GSM or CDMA signal, and continuously sample at each latitude and longitude coordinate within a period of time. A sampling point corresponds to a series of sampling values. The latitude and longitude coordinates of the sampling point are The CID of each base station, the signal strength corresponding to each base station, the type of operator and the sampling time are recorded in the sampling information table of the database for data processing by the data processing module of the multi-base station positioning center.

[0033] The present invention first divides the data in the above sampling information table into grid areas according to the latitude and longitude coordinates of the sampling points, and then calculates the probability distribution of the signal st...

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Abstract

The invention relates to a base station positioning method based on probability fingerprints. Probability fingerprints and pseudo probability fingerprints are generated by the adoption of a continuous signal sampling mode and a corresponding probability statistic method, the defect that a traditional sampling and matching positioning method can be disturbed by signal intensity fluctuation easily is overcome through probability similarity matching, and the accuracy for positioning by using a plurality of base station signals is improved. According to the base station positioning method based on the probability fingerprints, the signal strength probability statistic information of a plurality of adjacent base stations is fully utilized, positioning accuracy is improved, there is no need for extra devices to be additionally arranged on terminal equipment, and therefore precise indoor positioning application can be easier achieved on general public consumption type mobile phone terminals.

Description

technical field [0001] The invention relates to a multi-base station positioning method based on probability fingerprints. Background technique [0002] Indoor positioning technology has great value in indoor public place monitoring and indoor navigation applications. Therefore, in an indoor environment where GPS signals cannot be received, how to achieve indoor positioning has become the focus of attention. Existing indoor positioning technologies mainly include: optical tracking positioning technology, Bluetooth positioning technology, ultrasonic positioning technology, WIFI-based positioning technology and base station positioning technology. Among them, compared with other methods, the base station positioning technology has the advantages of wide coverage and low implementation cost, and has attracted attention. [0003] The accuracy of traditional single base station positioning directly using base station CID (number) is very low; while positioning methods based on s...

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Application Information

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IPC IPC(8): H04W64/00
Inventor 涂岩恺黄家乾陈典全季刚钟可华
Owner XIAMEN YAXON NETWORKS CO LTD
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