The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Dec. 15, 2015
Alibaba Group Holding Limited, Grand Cayman, KY;
Zhipeng Zhang, Hangzhou, CN;
Liangjie Zhou, Hangzhou, CN;
Xiao Qian, Hangzhou, CN;
Hui Shen, Hangzhou, CN;
Yunjiao Yao, Hangzhou, CN;
Alibaba Group Holding Limited, Grand Cayman, KY;
Abstract
A method and an apparatus of positioning a mobile terminal based on geomagnetism. The mobile terminal has at least one magnetic force sensor. The method includes obtaining magnetic induction values of the mobile terminal at a plurality of predetermined measurement angles at a position to be measured via a magnetic force sensor; generating a geomagnetic fingerprint of the position to be measured, the geomagnetic fingerprint including the plurality of predetermined measurement angles and a respective magnetic induction value measured at each of the plurality of predetermined measurement angles; sending the geomagnetic fingerprint of the position to be measured to a fingerprint map matching system to determine geographical position information corresponding to the geomagnetic fingerprint; and receiving the geographical position information corresponding to the geomagnetic fingerprint returned from the fingerprint map matching system, and setting the received geographical position information as geographical position information of the position to be measured. The present disclosure is able to perform matching through magnetic induction values of multiple measurement angles at a same position in a positioning and matching process to increase the accuracy of positioning and reduce the cost of positioning.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile