Landis+Gyr GridStream Protocol: Difference between revisions
→Packet Structure: Added link to open source gpsdecode library |
m Uploaded capture data |
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*Field 5 - Never observed a packet with this length and subtype that wasn't all FF's | *Field 5 - Never observed a packet with this length and subtype that wasn't all FF's | ||
*Field 6 - WAN Address - Oncor uses GPS coordinates, CoServ uses LAN with padding of some kind. The open source [https://github.com/beroset/gpsdecode gpsdecode] library shows one way to translate between WAN Address and GPS coordinates. | *Field 6 - WAN Address - Oncor uses GPS coordinates, CoServ uses LAN with padding of some kind. The open source [https://github.com/beroset/gpsdecode gpsdecode] library shows one way to translate between WAN Address and GPS coordinates. | ||
*Field 7 - Increments some amount with each transmission and rolls over at 0xFF, always an even hex value | *Field 7 - Increments some amount with each transmission and rolls over at 0xFF, always an even hex value | ||
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Format will likely change for the files as more is learned, currently the format is: | Format will likely change for the files as more is learned, currently the format is: | ||
Meter_ID, Uptime(seconds), Uptime(days), GPS_Data($GPGGA) | Meter_ID, Uptime(seconds), Uptime(days), GPS_Data($GPGGA) | ||
[https://wiki.recessim.com/w/images/a/a6/Wardrive-NTX_to_Highland-Park-03-09-2021.csv Wardrive-NTX_to_Highland-Park-03-09-2021.csv]<br /> | [https://wiki.recessim.com/w/images/a/a6/Wardrive-NTX_to_Highland-Park-03-09-2021.csv Wardrive-NTX_to_Highland-Park-03-09-2021.csv] | ||
Raw capture data: | |||
[[File:RAW Capture NJ.txt.txt]] | |||
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