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.


    Access

    Download


    Export, share and cite



    Title :

    TRACKING USING DISTRIBUTED FIBRE OPTIC SENSING


    Additional title:

    VERFOLGUNG MITTELS VERTEILTER FASEROPTISCHEN MESSUNG
    SUIVI UTILISANT UNE DÉTECTION PAR FIBRE OPTIQUE DISTRIBUÉE


    Contributors:
    KELLEY JOHN (author) / LEWIS ANDREW (author)

    Publication date :

    2019-09-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



    Tracking Using Distributed Fibre Optic Sensing

    KELLEY JOHN / LEWIS ANDREW | European Patent Office | 2018

    Free access

    TRACKING USING DISTRIBUTED FIBRE OPTIC SENSING

    KELLEY JOHN / LEWIS ANDREW | European Patent Office | 2017

    Free access

    Tracking using distributed fibre optic sensing

    KELLEY JOHN / LEWIS ANDREW | European Patent Office | 2019

    Free access

    TRACKING USING DISTRIBUTED FIBRE OPTIC SENSING

    KELLEY JOHN / LEWIS ANDREW | European Patent Office | 2017

    Free access

    Distributed Fibre Optic Sensing

    ESPREY CHRIS | European Patent Office | 2020

    Free access