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1. (WO2018099089) METHOD AND DEVICE FOR RECOGNIZING STATIONARY STATE

Pub. No.:    WO/2018/099089    International Application No.:    PCT/CN2017/092650
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Jul 13 01:59:59 CEST 2017
IPC: G01C 25/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHANG, Quan
张全
NIU, Xiaoji
牛小骥
FU, Liding
付立鼎
Title: METHOD AND DEVICE FOR RECOGNIZING STATIONARY STATE
Abstract:
A method and a device for recognizing a stationary state is provided for resolving the issue of low stationary state recognition accuracy in the prior art. The method comprises: an inertial navigation system obtaining first operation data of a first set duration measured by an IMU, determining N first standard deviations of the first operation data, matching the N first standard deviations against a pre-stored database, and determining N second standard deviations respectively identical to the N first standard deviations; determining N pieces of first information respectively corresponding to the second standard deviations in the pre-stored database, multiplying a first probability of each piece of the N pieces of first information by corresponding weight, summing N multiplied values, and determining an obtained summation value to be a second probability that the N first standard deviations indicate a stationary state; and the inertial navigation system determining that a device at which the inertial navigation system is located is in a stationary state in the first set duration if the second probability is greater than or equal to a stationary probability threshold.