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1. (WO2018205442) METHOD AND DEVICE FOR USE IN IDENTIFYING POSITIONING POINT

Pub. No.:    WO/2018/205442    International Application No.:    PCT/CN2017/097718
Publication Date: Fri Nov 16 00:59:59 CET 2018 International Filing Date: Thu Aug 17 01:59:59 CEST 2017
IPC: G01C 21/20
Applicants: SHENZHEN WATER WORLD CO., LTD
深圳市沃特沃德股份有限公司
Inventors: SHAO, Hua
邵华
Title: METHOD AND DEVICE FOR USE IN IDENTIFYING POSITIONING POINT
Abstract:
A method and device for use in identifying a positioning point, the identifying method comprising the following steps: calculating an interval distance between an adjacent first positioning point and second positioning point (S12); according to the number of motion steps of a positioning target between the first positioning point and the second positioning point, calculating a movement distance of the positioning target (S13); determining whether the interval distance is greater than the movement distance (S14); when the interval distance is greater than the movement distance, then identifying the second positioning point as an invalid positioning point (S15); the positioning time of the first positioning point is earlier than the positioning time of the second positioning point. Thereby, fast and accurate identification of an invalid positioning point is achieved, preventing the phenomenon of positioning drift, improving positioning accuracy and improving user experience; moreover, the related computation load is small and operation is extremely simple, therefore the present invention has a fast processing speed and occupies few resources, being low cost.