Method and system for acquiring indoor navigation data based on intelligent mobile terminal

Abstract

The invention discloses a method and system for acquiring indoor navigation data based on an intelligent mobile terminal. The method comprises the steps: the intelligent mobile terminal constructs an indoor road network model and generates a collecting optimal path; the intelligent mobile terminal collects sensor data during user's walking along the collecting optimal path and detects user's stride and identification turning; a dead reckoning method is used to perform position labeling, and position labeling results are corrected through video image data collected by a camera; corrected position results are used to perform position labeling on data obtained by other sensors except the camera and perform labeling on floor positions; indoor information points and landmark data are extracted, and an indoor texture image library and a landmark database are established. According to the method and system for acquiring indoor navigation data based on the intelligent mobile terminal, an indoor road network is constructed automatically, a smartphone is utilized to collect multisource sensor information on navigation routes, a position fingerprint database and a landmark database are provided for indoor pedestrians, and basic data are provided for indoor positioning and route guidance.

Description

technical field [0001] The invention relates to the technical field of indoor positioning, in particular to a method and system for acquiring indoor navigation data based on an intelligent mobile terminal. Background technique [0002] With the widespread popularization of smart mobile terminals, location-based services (LBS, Location Based Services) and indoor and outdoor integrated pedestrian navigation technology have received more and more attention. At present, the positioning and navigation using GPS satellites can meet the service needs of outdoor pedestrians; there is still a lack of unified standards for indoor pedestrian positioning and navigation methods. Commonly used indoor positioning technologies and methods include: WIFI, Bluetooth, strong geomagnetic field, inertial sensors, computer vision, etc. Most of these methods are based on the idea of ​​matching and need to establish a navigation database. The current method of building a navigation database still r...

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method and system for acquiring indoor navigation data based on an intelligent mobile terminal, aiming at solving the problems of difficulty in automatically extracting navigation data and time-consuming and laborious marking of location fingerprints in the process of indoor positioning and navigation

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