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1. (WO2018157482) METHOD, DEVICE AND TERMINAL FOR ACQUIRING ROUTE

Pub. No.:    WO/2018/157482    International Application No.:    PCT/CN2017/085586
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Wed May 24 01:59:59 CEST 2017
IPC: G01C 21/34
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: LI, Guoliang
李国良
Title: METHOD, DEVICE AND TERMINAL FOR ACQUIRING ROUTE
Abstract:
A method, device and terminal for acquiring a route, the method comprising: a terminal acquires a first time when the signal in the terminal disappears and information of a first position where the terminal is located at the first time (S101); the terminal starts dead reckoning from the first time (S102); the terminal acquires a second time when a user sends a signal for help and the information of a second position where the terminal is located at the second time, and ends the dead reckoning to obtain a first dead reckoning curve (S103); and the terminal determines the trajectory of the already-taken route according to the first time, the second time, the second position information, the first dead reckoning curve, and each time between the first time and the second time (S104), the trajectory of the already-taken route allowing a user to return from the position identified by the second position information to the position identified by the first position information.