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Experimental Tags

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    The SG project aims to support detection of whatever tags we can.  This page will track such projects.

    2017 May 24 - Cornell (Gabrielson & Winkler) tags

    These solar-powered tags transmit at 434 MHz and emit a 32-bit ID code.  With the appropriate software update,
    one or more Cornell USB Tag XCVRs can be plugged into spare USB ports on an SG,  attached to an appropriate
    antenna, and then any tag detections they report will appear on the live web interface, the sensorgnome.org
    realtime page (for network-connected receivers) and in data files.  So far, the motus data processing does not
    extract these tags, but support is planned.  The software update complements normal operation of the SG, and detection
    of Lotek coded ID tags at 166.38 MHz continues as usual.

    Tag detections in raw sensorgnome data files look like this:

       T3,1495635412.948,50524F2C
       T2,1495635414.123,55554B2A
    

    where the number after the T is the USB port number, the second field is the timestamp (uncorrected for latency),
    and the third field is a 32-bit tag ID in upper-case hexadecimal notation.  These lines are interspersed with detections
    of Lotek tag pulses from funcubedongles, and other records.

    On the web interface, the Cornell Tab XCVR is listed in the device list, and any tag detections appear in the Live Tags
    window, labelled with "Cornell":

    SG-detecting_lotek_and_cornell_tags.png

    On the sensorgnome.org realtime summary page, detections of Cornell tags appear as in
    row 6 of the table in this screenshot:

    sg_org_realtime_screen_showing_Cornell_Tag_row_6.png

    Support for registering Cornell tag deployments and processing SG data for them
    is pending.

    Support for Cornell tag detections on the SG-Pi platform is also pending.

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     SG-detecting_lotek_and_cornell_tags.png
    SG web interface showing simultaneous detection of Lotek and Cornell tags
    204.36 kB16:13, 24 May 2017adminActions
     sg_org_realtime_screen_showing_Cornell_Tag_row_6.png
    screenshot of sensorgnome.org realtime page, showing a receiver which has detected a Cornell tag (row 6)
    395.07 kB16:13, 24 May 2017adminActions
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