Big data based wireless real-time position positioning method

A technology of real-time location and positioning method, which is applied in positioning, wireless communication, radio wave measurement system, etc., and can solve problems such as inability to effectively mine wireless signal relationships, poor feature extraction capabilities, and few layers

Active Publication Date: 2014-07-23
JINAN JIAKE ELECTRONICS TECH
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the small number of layers, the shallow neural network has poor feature extraction ability, and cannot effectively mine the relationship between wireless signals and actual locations.
Moreover, due to the instability of the signal, there will be certain fluctuations in the positioning results of the neural network, and how to eliminate this fluctuation remains to be solved

Method used

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  • Big data based wireless real-time position positioning method
  • Big data based wireless real-time position positioning method
  • Big data based wireless real-time position positioning method

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Embodiment Construction

[0072] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0073] In the wireless real-time location positioning method based on big data, firstly, the area to be positioned is gridded (such as 2m*2m), and a wireless receiver (such as a mobile phone) is used to collect the information contained in these Wi-Fi signals multiple times in each grid. Information such as the physical address and signal strength of the user, and enough of these information (for example, each square is collected 100 times) to form a fingerprint database. Then use the wireless signal fingerprint library containing a large number of samples to train the deep neural network DNN, and use the network to extract the characteristics of the wireless signal observed at the current actual location, and perform the grid corresponding to the current actual location according to the extracted wireless signal characteristics. Estimated in real time....

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Abstract

The invention discloses a big data based wireless real-time position positioning method. The big data based wireless real-time position positioning method comprises the following steps of gridding a positioned detection area, enabling a plurality of wireless routers which are arranged inside the detection area to transmit wireless signals, enabling a wireless signal receiver to collect wireless signal information of the wireless routers for a plurality of times in every grid of the area after gridding and forming collected wireless signal information into a big database wireless signal fingerprint database; performing signal preprocessing; performing parameter training; training DNN(Deep Neural Networks); performing signal character extraction and character classification based on the trained DNN; performing position estimation based on a HMM (Hidden Markov Model). The big data based wireless real-time position positioning method has the advantages of improving the accuracy of a positioning result under the condition that the real-time positioning speed is not influenced, successfully integrating positioning problems into the big data background and improving the performance of the real-time positioning system by effectively using advantages of the big data.

Description

technical field [0001] The present invention generally relates to wireless positioning technology, in particular to a wireless real-time position positioning method based on big data. Background technique [0002] At present, the positioning technologies in the world mainly include GPS positioning, Wi-Fi positioning, Bluetooth positioning, etc. GPS positioning is mainly used outdoors, while Wi-Fi and Bluetooth positioning can be used both indoors and outdoors. Because of its special working mode, GPS positioning is far from the specific realization of the present invention. This positioning technology is applicable to but not limited to Wi-Fi, Bluetooth and other positioning methods. Since Wi-Fi positioning is relatively mature, the following describes the specific content of the present invention with the background of Wi-Fi positioning technology. [0003] With the popularization of wireless routers, most of the public areas have now been covered by more than a dozen or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/02
Inventor 张伟刘侃田天宫世杰
Owner JINAN JIAKE ELECTRONICS TECH
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