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1. (WO2016050081) SYSTEM FOR NAVIGATING INSIDE OF BUILDING AND APPLICATION SYSTEM THEREFOR

Pub. No.:    WO/2016/050081    International Application No.:    PCT/CN2015/079422
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Fri May 22 01:59:59 CEST 2015
IPC: G01C 21/18
G01S 19/49
G06T 17/00
Applicants: SUZHOU QUADRANT INFORMATION TECHNOLOGY LLC
苏州四方万象信息科技有限公司
Inventors: LI, Chuan
黎川
LIU, Dongcai
刘栋才
CHEN, Yi
陈奕
Title: SYSTEM FOR NAVIGATING INSIDE OF BUILDING AND APPLICATION SYSTEM THEREFOR
Abstract:
A system for navigating the inside of a building. The system comprises a server and a mobile client, the mobile client being connected to the server via a network, characterized in that the server comprises a file database used for storing geographical location information of a building and a three-dimensional image file for said building; the mobile client comprises: a display module responsible for displaying said three-dimensional image file; a satellite positioning module responsible for determining the location of the mobile client by means of satellite positioning; an indoor positioning module responsible for determining the location of the mobile client on the basis of changes in the acceleration of the angle and the displacement of the mobile client; and, an indoor navigation module responsible for navigating the inside of a building on the basis of the three-dimensional image file. The system can automatically analyze a DXF file and can automatically generate three-dimensional building data, thereby allowing for the creation of a cloud network-based three-dimensional image of a building, and uses mobile client satellite positioning and a sensor such as a gyroscope to achieve indoor navigation.