CSI Wireless Seres, Справочное руководство

Страница: 102 / 134

Seres Reference Manual
82
5.7.6 RMC Data Message
The RMC message contains recommended minimum specific GPS data.
Table 5-12 breaks down the RMC data message into its components. This
message has the following format:
$GPRMC,hhmmss.ss,a,ddmm.mmm,n,dddmm.mmm,w,z.z,y.y,ddm
myy,d.d,v *cc<CR><LF>
Table 5-12 RMC Data Message Defined
Field Description
hhmmss.ss UTC time in hours, minutes, seconds of the GPS position
a Status is valid if a = A, status is invalid if a = V
ddmm.mmmmm Latitude in degrees, minutes, and decimal minutes
n S = N or s = S, for North or South latitude
dddmm.mmmmm Longitude in degrees, minutes, and decimal minutes
w S = E or s = W, for East or West longitude
z.z Ground speed in knots
y.y Track made good, referenced to true north
ddmmyy UTC date of position fix in day, month, year
d.d Magnetic Variation in degrees
v Variation sense v = E = East, v = W = West
*cc Checksum
<CR><LF> Carriage return and line feed