Methods, program products, and systems for building a location fingerprint database for a transit system are described. The transit system can be a subway system including underground train stations and routes where location determination using GPS signals is difficult or impossible. A sampling device can measure signals, e.g., radio frequency (RF) signals detected at the stations or on the routes. A location server can construct a location fingerprint for each of the stations and the routes. Each location fingerprint can represent expected signal measurements by a user device if the user device is located at the respective station or route. The location server can provide the location fingerprint to a user device for the user device to determine a location of the user device within the station or on the route.


    Access

    Download


    Export, share and cite



    Title :

    LOCATION FINGERPRINTING FOR TRANSIT SYSTEMS



    Publication date :

    2016-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / G01S RADIO DIRECTION-FINDING , Funkpeilung / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



    Location fingerprinting for transit systems

    MILLMAN DAVID BENJAMIN / BERGERENGEN JOHAN OLAV / MAYOR ROBERT et al. | European Patent Office | 2017

    Free access

    ENHANCED TRANSIT LOCATION SYSTEMS AND METHODS

    HANCZOR ROBERT / MAXWELL DUANE | European Patent Office | 2021

    Free access

    ENHANCED TRANSIT LOCATION SYSTEMS AND METHODS

    HANCZOR ROBERT / MAXWELL DUANE | European Patent Office | 2024

    Free access

    ENHANCED TRANSIT LOCATION SYSTEMS AND METHODS

    HANCZOR ROBERT / MAXWELL DUANE | European Patent Office | 2024

    Free access

    ENHANCED TRANSIT LOCATION SYSTEMS AND METHODS

    HANCZOR ROBERT / MAXWELL DUANE | European Patent Office | 2021

    Free access