Mobile terminal indoor location method and device

A mobile terminal and indoor positioning technology, which is applied in the field of mobile Internet, can solve the problems of the same frequency, adjacent frequency interference, large positioning delay, limited range of action, etc., to achieve reliable positioning tasks and eliminate the effect of accumulated errors
CN108668249AActive Publication Date: 2018-10-16BEIJING WUZI UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING WUZI UNIVERSITY
Publication Date
2018-10-16

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Abstract

The embodiment of the invention provides a mobile terminal indoor location method and device. The method comprises the following steps: offline acquiring signal intensity information respectively corresponding to multiple preset sampling points in one spatial position as fingerprint point signal information; according to the fingerprint point signal information, constructing a location fingerprintdatabase; acquiring displacement motion initial state information of the mobile terminal in the currently preset unit time; calculating a reference position of a displacement termination position byutilizing an inertial navigation principle and utilizing the displacement motion initial state information of the mobile terminal; and acquiring signal intensity information, respectively corresponding to preset unit time points on a displacement motion track, of the mobile terminal, constructing a sparse fingerprint location model based on spatial position constraint, correcting the reference position of the displacement termination position, and acquiring a corrected position of the displacement termination position. The embodiment of the invention realizes relatively high location accuracywith relatively low cost.
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Description

technical field

[0001] The present invention relates to the technical field of mobile Internet, in particular to an indoor positioning method and device for a mobile terminal. Background technique

[0002] With the rapid development of computer software and hardware technology, the rapid popularization of wireless networks, and the wide application of mobile smart terminal equipment, the mobile Internet has been more and more widely used, and the application demand based on location services has shown a rapid and substantial growth trend, and Because it can provide accurate positioning information for target positioning, emergency rescue, traffic management, etc., it has been gradually applied to various fields of social production and life, and has shown good technical development prospects and huge application market space. Reliable and efficient positioning technology is the premise and key to realize location-based services.

[0003] Tool software and mobile services ba...

Claims

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