Enhanced GPS Data Format

 

GPS Data Format

I. GGA

Global Positioning System Fix Data. Time, position and fix related data for a GPS aggreger

GPS positioning data, GPS receiver time, location, and location description

$ -- GGA,Hhmmss. SS,Llll. ll,A,Yyyyy. yy,A,X,
Xx,X. x,X. x,M,X. x,M,X. x,XXXX * hh

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

1. UTC time

2. Latitude

3. N or S (north or south latitude)

4. Longitude

5. E or W (eastern longitude or Western longitude)

6. Satellite quality factor

0-uncertain

1-GPS Positioning

2-Differential GPS Positioning

6-location prediction mode Positioning

7. Number of valid satellites (00 ~ 12)

8. Horizontal precision factor hdop

9. Antenna altitude

10. Antenna altitude Unit

11. Sea level relative to the Earth's elliptical sphere height

12. The height unit of sea level relative to the Earth's elliptical sphere

13. Differential GPS data time (starting from the last positioning), no

14. ID of the differential Reference Station (0000-1023)

15. Check Value

Ii. GSA

Gps dop and active satellites

Gps dop and effective satellite

$ -- GSA,A,A,X,X,X,X,X,X,
X,X,X,X,X,X,X,X,
X. x,X. x,X. x*HH

1 2 3 4 5 14 15 16 17 18

1. Select Mode

M-manually run 2D or 3D Mode

A-automatic switch in 2D or 3D Mode

2. Positioning Mode

1-undetermined

2-2D Positioning

3-3D Positioning

3. 1st located satellite ID numbers

4. 2nd located satellite ID numbers

...

14. 12th located satellite ID No.

15. pdop Position Accuracy Factor

16. hdop horizontal precision factor

17. vdop vertical precision factor

18. Check Value

Iii. GSV

Satellites in view

Visual Satellite

$ -- GSV,X,X,X,X,X,X,X,...*HH

1 2 3 4 5 6 7 8

1. Total number of GSV statements

2. This GSV statement is the number of the current GSV statement.

3. Total number of visible satellites

4. Satellite Number

5. Satellite elevation (90 degrees at maximum)

6. Satellite azimuth (0-35 9 degrees)

7. c/no value

Repeat 4-7 items. Each line has a maximum of four satellites.

8. Check Value

Iv. RMC

Recommended minimum navigation information

Recommended positioning information

$ -- RMC,Hhmmss. SS,A,Llll. ll,A,
Yyyyy. yy,A,X. x,X. x,Xxxx,X. x,A*HH

1 2 3 4 5 6 7 8 9 10 11 12

1. UTC time

2. Status

A-located

V-undetermined

3. Latitude

4. N or S (north or south latitude)

5. Longitude

6. E or W (eastern longitude or Western longitude)

7. Speed Section

8. Azimuth

9. Date ddmmyy

10. Magnetic Slip Angle

11. Magnetic angle direction, E or W (East or West)

12. Check Value

 

V. Vtg

Track made good and ground speed

Ground speed information

$ -- Vtg,X. x,T,X. x,M,X. x,
N,X. x,K*HH

1 2 3 4 5 6 7 8 9

 

1. Ground heading based on zhenbei

2. t = true

3. Ground heading based on the magnetic north

4. M = magnetic pole

5. Ground speed section

6. n = knots Section

7. Ground speed km/hour

8. k = kilometres per hour km/hour

9. Check Value

 

Vi. GlL

Geographic Position-latitude/longpolling

Geographic location-longitude/latitude

$ -- GlL,Llll. ll,A,Yyyyy. yy,A,Hhmmss. SS,A*HH

1 2 3 4 5 6 7

1. Latitude

2. N or S (north or south latitude)

3. Longitude

4. E or W (eastern longitude or Western longitude)

5. UTC time

6. Status

A-located

V-undetermined

7. Check Value

 

VII. Zda

Time & date-UTC, day, month, year and Local Time Zone

Time and date-UTC, day, month, and local time zone

$ -- Zda,Hhmmss. SS,Xx,Xx,Xxxx,Xx,Xx*HH

1 2 3 4 5 6 7

1. Local Time

2. Local time zone, 00 to +/-13 hours

3. Year

4. Month, 00 to 12

5. Date, 00 to 31

6. UTC time

7. Check Value

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Note:

1> reprinted the downloadable csdn Doc