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:
Oct. 11, 2016
Filed:
Mar. 03, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Toshiya Otomo, Kawasaki, JP;
Koichiro Yamashita, Hachioji, JP;
Takahisa Suzuki, Yokohama, JP;
Hiromasa Yamauchi, Usakos, NA;
Koji Kurihara, Kawasaki, JP;
Yuta Teranishi, Fukuoka, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A determining method includes obtaining by each monitoring apparatus among plural monitoring apparatuses disposed encompassing a given area having plural wireless communications apparatuses, hop count information that indicates a hop count of a wireless signal transmitted by one wireless communications apparatus among the wireless communications apparatuses and received by the monitoring apparatus via multi-hop communication by the wireless communications apparatuses; calculating by each monitoring apparatus, an estimated line that represents candidates of a position of the one wireless communications apparatus, the estimated line being calculated from an estimated distance between the monitoring apparatus and the one wireless communications apparatus, based on the hop count; correcting by each monitoring apparatus, the calculated estimated line based on information indicating a node-less area in which no wireless communications apparatus of the given area is present; and determining the position of the one wireless communications apparatus based on intersections of the corrected estimated lines.