Logger-TK2-Umwandlung
$GPRMC,092940,A,4802.382096,N,00751.649691,E,1.3,258.0,050208,,,D*7F
$GPGGA,092940,4802.382096,N,00751.649691,E,2,07,2,233,M,15.2,M,999.9,*66
$GPGSA,A,3,14,30,01,05,07,06,47,,,,,,7.38,6.01,4.27*08
$GPGSV,3,1,12,14,67,092,30,22,25,182,16,30,24,040,30,31,49,336,*74
$GPGSV,3,2,12,01,56,341,14,05,08,043,28,07,39,098,36,06,35,088,34*74
$GPGSV,3,3,12,16,44,228,,42,54,141,,20,10,315,,47,22,106,28*7C
$GPRMC,092943,A,4802.383097,N,00751.649595,E,1.2,354.0,050208,,,D*77
$GPGGA,092943,4802.383097,N,00751.649595,E,2,07,2,233,M,15.2,M,999.9,*62
$GPGSA,A,3,14,30,01,05,07,06,47,,,,,,7.38,6.01,4.27*08
$GPGSV,3,1,12,14,67,092,30,22,25,182,16,30,24,040,30,31,49,336,*74
$GPGSV,3,2,12,01,56,341,14,05,08,043,28,07,39,098,36,06,35,088,34*74
$GPGSV,3,3,12,16,44,228,,42,54,141,,20,10,315,,47,22,106,28*7C
$GPRMC,092944,A,4802.383895,N,00751.648995,E,3.2,323.0,050208,,,D*75
$GPGGA,092944,4802.383895,N,00751.648995,E,2,07,2,233,M,15.2,M,999.9,*62
$GPGSA,A,3,14,30,01,05,07,06,47,,,,,,7.38,6.01,4.27*08
$GPGSV,3,1,12,14,67,092,30,22,25,182,16,30,24,040,30,31,49,336,*74
$GPGSV,3,2,12,01,56,341,14,05,08,043,28,07,39,098,36,06,35,088,34*74
$GPGSV,3,3,12,16,44,228,,42,54,141,,20,10,315,,47,22,106,28*7C

u-center-log
$GPRMC,092940.000,A,4802.3821,N,00751.6497,E,0.76,328.26,050208,,,A*62
$GPGGA,092940.000,4802.3821,N,00751.6497,E,1,09,1.3,233.3,M,47.9,M,,0000*53
$GPGSA,A,3,16,21,03,18,06,22,19,24,27,,,,2.8,1.3,2.4*3F
$GPGSV,4,1,13,16,66,211,36,21,46,060,45,03,54,293,36,18,45,104,38*71
$GPGSV,4,2,13,06,23,103,29,22,31,155,43,19,24,285,38,25,15,308,*75
$GPGSV,4,3,13,24,08,055,23,29,01,101,,27,10,327,32,26,04,045,27*7E
$GPGSV,4,4,13,15,04,055,27*4E
$GPRMC,092941.000,A,4802.3821,N,00751.6496,E,0.44,328.26,050208,,,A*63
$GPGGA,092941.000,4802.3821,N,00751.6496,E,1,10,1.3,233.4,M,47.9,M,,0000*5C
$GPGSA,A,3,16,21,03,18,06,22,19,24,27,15,,,2.8,1.3,2.4*3B
$GPGSV,4,1,13,16,66,211,38,21,46,060,45,03,54,293,36,18,45,104,34*73
$GPGSV,4,2,13,06,23,103,27,22,31,155,40,19,24,285,34,25,15,308,*74
$GPGSV,4,3,13,24,08,055,23,29,01,101,,27,10,327,29,26,04,045,24*77
$GPGSV,4,4,13,15,05,054,28*41
$GPRMC,092942.000,A,4802.3824,N,00751.6497,E,1.67,330.67,050208,,,A*68
$GPGGA,092942.000,4802.3824,N,00751.6497,E,1,10,1.6,233.4,M,47.9,M,,0000*5E
$GPGSA,A,3,16,21,03,18,06,22,19,24,27,15,,,4.0,1.6,3.7*32
$GPGSV,4,1,13,16,66,211,36,21,46,060,33,03,54,293,37,18,45,104,36*7F
$GPGSV,4,2,13,06,23,103,25,22,31,155,38,19,24,285,24,25,15,308,*78
$GPGSV,4,3,13,24,08,055,24,29,01,101,,27,10,327,26,26,04,045,30*7A
$GPGSV,4,4,13,15,05,054,19*43
$GPRMC,092943.000,A,4802.3831,N,00751.6496,E,2.53,349.89,050208,,,A*66
$GPGGA,092943.000,4802.3831,N,00751.6496,E,1,10,1.6,233.6,M,47.9,M,,0000*58
$GPGSA,A,3,16,21,03,18,06,22,19,24,27,15,,,4.0,1.6,3.7*32
$GPGSV,4,1,13,16,66,211,35,21,46,060,36,03,54,293,40,18,45,104,32*7D
$GPGSV,4,2,13,06,23,103,31,22,31,155,36,19,24,285,27,25,15,308,*70
$GPGSV,4,3,13,24,08,055,23,29,01,101,,27,10,327,22,26,04,045,30*79
$GPGSV,4,4,13,15,05,054,22*4B
$GPRMC,092944.000,A,4802.3839,N,00751.6490,E,3.98,328.84,050208,,,A*63
$GPGGA,092944.000,4802.3839,N,00751.6490,E,1,10,1.6,233.7,M,47.9,M,,0000*50
$GPGSA,A,3,16,21,03,18,06,22,19,24,27,15,,,4.0,1.6,3.7*32
$GPGSV,4,1,13,16,66,211,41,21,46,060,42,03,54,293,41,18,45,104,37*79
$GPGSV,4,2,13,06,23,103,42,22,31,155,40,19,24,285,31,25,15,308,*72
$GPGSV,4,3,13,24,08,055,22,29,01,101,,27,10,327,31,26,04,045,23*78
$GPGSV,4,4,13,15,05,054,26*4F

Eigene
$GPRMC,092940.000,,4802.3821,N,00751.6497,E,1.28,253.30,050208,,,*34
$GPGGA,092943.000,4802.3831,N,00751.6496,E,,,,233.0,M,,,,0000*1E
$GPVTG,356.54,T,,M,1.21,N,2.23,K*50
$GPRMC,092943.000,,4802.3831,N,00751.6496,E,1.21,356.54,050208,,,*38
$GPGGA,092944.000,4802.3839,N,00751.6490,E,,,,233.0,M,,,,0000*17



in der Reihenfolge TK/u-center/eigene:

$GPRMC,092940,    A,4802.382096,N,00751.649691,E,1.3, 258.0, 050208,,,D*7F___________TK2
$GPRMC,092940.000,A,4802.3821,  N,00751.6497,  E,0.76,328.26,050208,,,A*62___________u-center
$GPRMC,092940.000, ,4802.3821,  N,00751.6497,  E,1.28,253.30,050208,,,*34____________eigene

$GPGGA,092940,      4802.382096,N,00751.649691,E,2,07,2,  233,  M,15.2,M, 999.9,*66____TK2
$GPGGA,092940.000,  4802.3821,  N,00751.6497,  E,1,09,1.3,233.3,M,47.9,M,,0000*53______u-center
$GPGGA,092943.000,  4802.3831,  N,00751.6496,  E,,,,      233.0,M,,,,     0000*1E______eigene

eingeschwungene Geschwindigkeit

$GPRMC,093230,    A,4802.408795,N,00751.671598,E,27.4, 192.0, 050208,,,D*44__________TK2
$GPRMC,093230.000,A,4802.4088,  N,00751.6716,  E,27.02,184.11,050208,,,A*5F__________u-center
$GPRMC,093226.000, ,4802.4389,  N,00751.6782,  E,27.55,189.22,050208,,,*0E___________eigene
__________________| Status A=Valid, V=Invalid
_________________________________________________| Speed over Ground in knots
_______________________________________________________| Course over Ground


$GPGGA,093230,      4802.408795,N,00751.671598,E,2,07,2,  233,  M,15.2,M, 999.9,*6B__TK2
$GPGGA,093230.000,  4802.4088,  N,00751.6716,  E,1,08,1.1,233.5,M,47.9,M,,0000*5D____u-center
$GPGGA,093231.000,  4802.4009,  N,00751.6708,  E,,,,      234.0,M,,,,     0000*16____eigene
_________________________________________________| Status 0=Invalid, 1=2D/3D, 2=DGPS, 6=DeadReckoning
___________________________________________________| Number of SVs used
______________________________________________________| HDOP
__________________________________________________________________| Geoid Separation = Alt(HAE)-Alt(MSL)
___________________________________________________________________________| Age of Differential Corrections


Hier nun die Auswertung von gestern morgen aufgenommenen logs. Oben zunchst ein Zeitraum von 092940 -092944. Wie man sehen kann, ist in der TK-Umwandlung GSA und GSV enthalten, diese Informationen sind aber im TK1-File nicht enthalten, somit sind sie falsch und gehren nicht in diese Umwandlung.

Dass man es richtig machen kann, sieht man an meiner eigenen Umwandlung. Die Zeiten der TK2- und meiner Umwandlung sind deckungsgleich, (logisch) ensteht doch meine ebenfalls aus der TK, hier aus der TK2.

Nun zu den einzelnen Feldern, zunchst RMC. Hier ist der Status mit A vorbesetzt. Nachdem es mit mehreren Versuchen nicht gelungen ist, den Status V in der NMEA-Umwandlung zu finden, ist zu vermuten, dass Stze die diesen invaliden Status enthalten ausgefiltert werden. Die kann man im Zeitvergleich mit dem u-center log recht gut sehen. Der Status A knnte damit als richtig bezeichnet werden.

Aus dem u-center-log:

$GPRMC,100331.000,A,4802.1883,N,00751.8766,E,7.20,309.14,060208,,,A*68
$GPGGA,100331.000,4802.1883,N,00751.8766,E,1,03,3.0,232.0,M,47.9,M,,0000*55
$GPGSA,A,2,03,22,16,,,,,,,,,,3.2,3.0,1.0*34
$GPGSV,3,1,12,03,71,296,10,18,47,079,14,21,30,062,15,27,11,313,15*70
$GPGSV,3,2,12,19,39,294,,22,47,144,17,16,49,194,13,08,06,338,*70
$GPGSV,3,3,12,06,10,112,,25,11,293,10,15,08,040,,26,07,029,*71
$GPRMC,100332.000,V,4802.1946,N,00751.8752,E,10.94,308.02,060208,,,N*43
$GPGGA,100332.000,4802.1946,N,00751.8752,E,0,03,3.0,232.1,M,47.9,M,,0000*59
$GPGSA,A,1,03,22,16,,,,,,,,,,3.2,3.0,1.0*37
$GPGSV,3,1,12,03,71,296,10,18,47,079,12,21,30,062,20,27,11,313,15*70
$GPGSV,3,2,12,19,39,294,,22,47,144,16,16,49,194,14,08,06,338,*76
$GPGSV,3,3,12,06,10,112,,25,11,293,09,15,08,040,,26,07,029,*79
$GPRMC,100333.000,V,4802.1993,N,00751.8842,E,9.87,318.66,060208,,,N*7D
$GPGGA,100333.000,4802.1993,N,00751.8842,E,0,04,2.9,232.1,M,47.9,M,,0000*51
$GPGSA,A,1,03,22,16,25,,,,,,,,,3.8,2.9,2.4*35
$GPGSV,3,1,12,03,71,296,10,18,47,079,11,21,30,062,20,27,11,313,15*73
$GPGSV,3,2,12,19,39,294,,22,47,144,17,16,49,194,14,08,06,338,*77
$GPGSV,3,3,12,06,10,112,,25,11,293,10,15,08,040,,26,07,029,*71
$GPRMC,100334.000,V,4802.2051,N,00751.8948,E,10.03,332.12,060208,,,N*4A
$GPGGA,100334.000,4802.2051,N,00751.8948,E,0,04,2.9,232.2,M,47.9,M,,0000*5A
$GPGSA,A,1,03,22,16,25,,,,,,,,,3.8,2.9,2.4*35
$GPGSV,3,1,12,03,71,296,12,18,47,079,11,21,30,062,21,27,11,313,15*70
$GPGSV,3,2,12,19,39,294,,22,47,144,16,16,49,194,15,08,06,337,*78
$GPGSV,3,3,12,06,10,112,,25,11,293,10,15,08,040,,26,07,029,*71
$GPRMC,100335.000,V,4802.2112,N,00751.9051,E,10.43,349.02,060208,,,N*44
$GPGGA,100335.000,4802.2112,N,00751.9051,E,0,04,2.9,232.3,M,47.9,M,,0000*5C
$GPGSA,A,1,03,22,16,25,,,,,,,,,3.8,2.9,2.4*35
$GPGSV,3,1,12,03,71,296,12,18,47,079,10,21,30,062,19,27,11,313,15*7A
$GPGSV,3,2,12,19,39,294,,22,47,144,15,16,49,194,14,08,06,337,*7A
$GPGSV,3,3,12,06,10,112,,25,11,293,10,15,08,040,,26,07,029,*71
$GPRMC,100336.000,V,4802.2186,N,00751.9074,E,12.23,347.39,060208,,,N*4F
$GPGGA,100336.000,4802.2186,N,00751.9074,E,0,03,3.0,232.4,M,47.9,M,,0000*5D
$GPGSA,A,1,03,22,16,,,,,,,,,,3.2,3.0,1.0*37
$GPGSV,3,1,12,03,71,296,11,18,47,079,,21,30,062,19,27,11,313,15*78
$GPGSV,3,2,12,19,39,294,,22,47,144,14,16,49,194,14,08,06,337,*7B
$GPGSV,3,3,12,06,10,112,,25,11,293,,15,08,040,,26,07,029,*70
$GPRMC,100337.000,A,4802.2278,N,00751.9085,E,16.81,342.15,060208,,,A*5D

Aus der NMEA-Wandlung:

$GPRMC,100330,A,4802.184095,N,00751.874595,E,14.2,347.0,060208,,,D*41
$GPGGA,100330,4802.184095,N,00751.874595,E,2,07,2,232,M,15.2,M,999.9,*60
$GPGSA,A,3,14,30,01,05,07,06,47,,,,,,7.38,6.01,4.27*08
$GPGSV,3,1,12,14,67,092,30,22,25,182,16,30,24,040,30,31,49,336,*74
$GPGSV,3,2,12,01,56,341,14,05,08,043,28,07,39,098,36,06,35,088,34*74
$GPGSV,3,3,12,16,44,228,,42,54,141,,20,10,315,,47,22,106,28*7C
$GPRMC,100337,A,4802.227793,N,00751.908495,E,25.4,37.0,060208,,,D*76
$GPGGA,100337,4802.227793,N,00751.908495,E,2,07,2,232,M,15.2,M,999.9,*67



Nebeneffekt: es ist gar nicht so leicht, die 201, wenn sie mal einen fix hat, in den invaliden Status - verlieren des fix - zu bringen. Ich habe mich whrend der Fahrt auf die 201 voll drauf gesetzt und es waren meist immer noch 3 sats in use.

Die Course Angaben sind vermutlich gerechnet, das knnte man so lassen. 

In GGA ist der Status vorbesetzt mit 2. Das ist schon mal grundstzlich zu einem hohen Prozentsatz vermutlich falsch, denn DGPS-Empfang ist -zumindest in unseren Breiten - eher selten. Aber auch fr 0, 1 oder 2 fehlen die Kriterien in TK, also auch leer lassen. Hier gilt aber auch das unter RMC gesagte, 1=2D/3D knnte richtig sein, ebenfalls in (hier zu Lande) wenigen Fllen 2=DGPS. HDOP wird im TK nicht geliefert, leer lassen. Die Geoid Separation ist mit der Vorbesetzung 15.2 ebenfalls falsch, denn , wie man bei uns wei, ist diese Hhe bei uns ca 47 m. Also sollte auch dieses Feld, zumal auch dieser Wert nicht in TK1 enthalten ist, leer bleiben.

ber Stellenzahlen (Nachkomma-) in Zeit und Koordinaten knnte man nachdenken, das ist aber wohl eher irrelevant und muss nicht beanstandet werden. 

Alle logs hngen an.


6.2.2008, 11:50 Charly (karomue)
