Sunsea AIoT SIMCom SIM66 Series, Руководство пользователя, Страница: 19 / 25

SIM66 Series_NMEA Message_User Guide_V1.01
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VDOP DOUBLE Vertical dilution of precision, 0.0~127.000
cs STR
Checksum
A hexadecimal number obtained by calculating an XOR of
all characters from '$' to '*' in this statement
<CR><LF> End of message termination
(1): GPS+SBAS+QZSS joint positioning is only supported by firmware with the version of R3.4.0.0 or
above.
(2) (3) (4) (5): Only supported by firmware with the version of R3.4.0.0 or above
2.4.4 Message ID GSV: Output Visible GNSS Satellites
Syntax:$GSV,NoMsg,MsgNo,NoSv,sv1,elv1,az1,cno1,sv2,elv2,az2,cno2,sv3,elv3,az3,
cno3,sv4,elv4,az4,cno4*cs
Example:
$GPGSV,3,1,11,3,82,133,50,6,70,73,50,7,21,311,45,13,46,275,50*75
$GPGSV,3,2,11,16,52,51,49,19,52,194,49,21,12,49,37,23,40,222,49*7C
$GPGSV,3,3,11,30,31,69,46,31,8,127,19,1,5,,44*77
$BDGSV,2,1,5,161,35,140,47,163,33,224,47,164,24,124,43,167,47,73,48*54
$BDGSV,2,2,5,168,5,,50*52
Parameter Format Description
-- STR
Positioning system flag
GP GPS+SBAS+QZSS joint positioning(1)
BD BDS system standalone positioning
GN Multiple system joint positioning
NoMsg UINT
Total number of GSV messages, the minimum value is 1
NoMsg is the total number of GSV messages in this
system, for example:
NoMsg in GPGSV is the total number of GPGSV
messages, excluding the number of BDGSV messages
MsgNo UINT
Number of this GSV message. The minimum value is
1.MsgNo is the number of this GSV message in this
system. Continuous output GPGSV and BDGSV are
numbered separately
NoSv UINT
Total number of visible satellites in this system
GLONASS satellite number is 65~ 92(2)
Galileo satellite number is 101~136(3)
QZSS satellite number is 193, 194, 195, 199(4)
SBAS (5):
WAAS satellite number is 53, 55, 58
EGNOS satellite number is 40, 44, 46
NOTE