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Template:FMB0 Status info (view source)
Revision as of 14:44, 14 September 2022
, 14:44, 14 September 2022→GNSS Info
**HDOP, PDOP
**HDOP, PDOP
**Speed - current device speed.
**Speed - current device speed.
== HDOP/PDOP value calculation changes ==
<BR>
{|
|[[File:Alert.png|left|link=|50px]]||<b>From firmware version 03.27.06.Rev.01 HDOP/PDOP value calculation has been removed. DOP values are taken from GPGSA messages. DOP values are calculated according to constellations that are currently in use. Example: If we have 4 GNSS systems and there will be two in use then average will be calculated from two GNSS systems.</b>
|}
Main calculations of separate HDOP/PDOP values of GPS, GLONASS, Galileo and BeiDou are made by GNSS modem. GNSS Modem already outputs average of HDOP/PDOP from 4 GNSS systems (Used satellites) with a formula below.
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Calculation formula - ("GPS" + "GLONASS" + "Galileo (0-sat)" + "BeiDou (0-sat)") / 2 (four GNSS systems)**<BR>
Calculation formula - ("GPS" + "GLONASS") / 2 (two GNSS systems)<BR>
HDOP/PDOP will be different if it will have 19 and i.e. other packet with 6 satellites. In parsed regular AVL packet example below all of 19 satellites are shown as in use.
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Parsed NMEA Record Example:<BR>
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Record GPS longitude : -14116383<BR>
Record GPS latitude : 530738950<BR>
Record GPS altitude : 356<BR>
Record GPS angle : 357<BR>
Record GPS satellites: 19<BR>
Record GPS Kmh : 102<BR>
<BR>
==GSM Info==
==GSM Info==
