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. 03, 2019
Filed:
Nov. 25, 2016
Optasense Holdings Limited, Farnborough, Hampshire, GB;
John Kelley, Farnborough, GB;
Andrew Lewis, Farnborough, GB;
Optasense Holdings Limited, , GB;
Abstract
This application describes methods and apparatus for tracking targets in a fiber optic distributed acoustic sensing (DAS) network. The DAS network comprises a plurality of interrogator units interrogating sensing fibers deployed along paths of interest to provide DAS sensors. Targets are tracked at each of a plurality of tracker nodes of the DAS network, where each tracker node receives measurement signals from one or more DAS sensors and applies a tracking algorithm to track any targets in a respective tracker zone. Each tracker node maintains, for each target, a tracking dataset of target properties for tracking that target. The method involves identifying when a first target in a first tracker zone of a first tracker node is approaching a second tracker zone of a second tracker nod and supplying for the first tracker node to the second tracker node a Target Descriptor for the first target.