$ Gpgga
Example: $ gpgga, 092204.999, 4250.5589, S, 14718.5084, E, 24.4, 19.7, 0000, M, * 1f
Field 0: $ gpgga, statement ID, indicating that the statement is Global Positioning System Fix Data (GGA) GPS location information
Field 1: UTC time, hhmmss. Sss, in the format of hour/minute/second
Field 2: latitude ddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 3: latitude N (north latitude) or S (south latitude)
Field 4: longitude dddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 5: longitude E (eastern longitude) or W (Western longitude)
Field 6: GPS status, 0 = undetermined, 1 = non-differential positioning, 2 = differential positioning, 3 = Invalid PPS, 6 = being estimated
Field 7: number of satellites in use (00-12) (0 if the number of leading digits is insufficient)
Field 8: hdop horizontal precision factor (0.5-99.9)
Field 9: altitude (-9999.9-99999.9)
Field 10: height of the earth's elliptical sphere relative to the geolevel
Field 11: differential time (the number of seconds from the last time the differential signal was received. If it is not a differential signal, it will be blank)
Field 12: ID of the differential substation: 0000-1023 (0 is added if the number of leading digits is insufficient. Otherwise, the differential positioning will be blank)
Field 13: Check Value $ Gpgll
Example: $ gpgll, 4250.5589, S, 14718.5084, E, 092204.999, A * 2D
Field 0: $ gpgll, statement ID, indicating that the statement is geographic position (GlL) Location Information
Field 1: latitude ddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 2: latitude N (north latitude) or S (south latitude)
Field 3: longitude dddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 4: longitude E (eastern longitude) or W (Western longitude)
Field 5: UTC time, hhmmss. Sss format
Field 6: Status, A = positioning, V = uncertain
Field 7: Check Value $ Gpgsa
Example: $ gpgsa, A, 40.4, 20, 19, 13, 24.4, 32.2 * 0a
Field 0: $ gpgsa, statement ID, indicating the current satellite information of gps dop and active satellites (GSA)
Field 1: positioning mode, a = automatic 2D/3d, M = manual 2D/3D
Field 2: positioning type, 1 = undetermined, 2 = 2D, 3 = 3D
Field 3: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 1st channel (00) (0 if the number of leading digits is insufficient)
Field 4: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 2nd channel (00) (0 if the number of leading digits is insufficient)
Field 5: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 3rd channel (00) (0 if the number of leading digits is insufficient)
Field 6: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 4th channel (00) (0 if the number of leading digits is insufficient)
Field 7: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 5th channel (00) (0 if the number of leading digits is insufficient)
Field 8: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 6th channel (00) (0 if the number of leading digits is insufficient)
Field 9: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 7th channel (00) (0 if the number of leading digits is insufficient)
Field 10: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 8th channel (00) (0 if the number of leading digits is insufficient)
Field 11: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 9th channel (00) (0 if the number of leading digits is insufficient)
Field 12: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 10th channel (00) (0 if the number of leading digits is insufficient)
Field 13: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 11th channel (00) (0 if the number of leading digits is insufficient)
Field 14: PRN code (Pseudo-Random Noise Code), number of the satellite PRN code used by the 12th channel (00) (0 if the number of leading digits is insufficient)
Field 15: pdop comprehensive position precision factor (0.5-99.9)
Field 16: hdop horizontal precision factor (0.5-99.9)
Field 17: vdop vertical precision factor (0.5-99.9)
Field 18: Check Value $ Gpgsv
Example: $ gpgsv, 78,331, 59,235, 41,069, * 70
Field 0: $ gpgsv, statement ID, indicating that the statement is GPS satellites in view (GSV) Visible satellite information
Field 1: Total number of GSV statements (1-3)
Field 2: The number of GSV statements in this GSV statement (1-3)
Field 3: Total number of visible satellites (00-12) (0 if the number of leading digits is insufficient)
Field 4: PRN code (Pseudo-Random Noise Code) (01-32) (add 0 if the number of leading digits is insufficient)
Field 5: Satellite elevation (00-90) degree (0 if the number of leading digits is insufficient)
Field 6: Satellite azimuth (00-359) degree (0 if the number of leading digits is insufficient)
Field 7: signal-to-noise ratio (00-99) dbhz
Field 8: PRN code (Pseudo-Random Noise Code) (01-32) (0 if the number of leading digits is insufficient)
Field 9: Satellite elevation (00-90) degree (0 if the number of leading digits is insufficient)
Field 10: Satellite azimuth (00-359) degree (0 if the number of leading digits is insufficient)
Field 11: signal-to-noise ratio (00-99) dbhz
Field 12: PRN code (Pseudo-Random Noise Code) (01-32) (add 0 if the number of leading digits is insufficient)
Field 13: Satellite elevation (00-90) degree (0 if the number of leading digits is insufficient)
Field 14: Satellite azimuth (00-359) degree (0 if the number of leading digits is insufficient)
Field 15: signal-to-noise ratio (00-99) dbhz
Field 16: Check Value $ Uplmc
Example: $ gprs mc, 024813.640, A, 3158.4608, N, 11848.3737, E, 10.05, 324.27, 150706, A * 50
Field 0: $ uplmc, statement ID, indicating that the statement is the minimum location information recommended by recommended minimum specific GPS/transit data (RMC ).
Field 1: UTC time, hhmmss. Sss format
Field 2: Status, A = positioning, V = uncertain
Field 3: latitude ddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 4: latitude N (north latitude) or S (south latitude)
Field 5: longitude dddmm. Mmmm, degree score format (add 0 if the number of leading digits is insufficient)
Field 6: longitude E (eastern longitude) or W (Western longitude)
Field 7: speed, section, knots
Field 8: azimuth, Degree
Field 9: UTC date, in ddmmyy format
Field 10: Magnetic offset (180-) (0 if the number of leading digits is insufficient)
Field 11: Magnetic angle direction, E = east W = West
Field 16: Check Value $ Gpvtg
Example: $ gpvtg, 89.68, T, M, 0.00, N, 0.0, K * 5f
Field 0: $ gpvtg, statement ID, indicating that the statement is track made good and ground speed (Vtg) ground speed information
Field 1: motion angle, 000-359 (0 if the number of leading digits is insufficient)
Field 2: t = zhenbei Reference System
Field 3: motion angle, 000-359 (0 if the number of leading digits is insufficient)
Field 4: M = magnetic north Frame
Field 5: horizontal speed (0.00) (0 if the number of leading digits is insufficient)
Field 6: N = Section, knots
Field 7: horizontal speed (0.00) (0 if the number of leading digits is insufficient)
Field 8: K = km/hour, km/h
Field 9: Check Value Data and time (Zda) time and date information
$ Gpzda, <1 >,< 2 >,< 3 >,< 4 >,< 5> * hh <CR> <LF>
<1> UTC time, hhmmss (hour/minute/second) Format
<2> UTC date, Day
<3> UTC date, month
<4> UTC date, year <5> Time Zone Datum (DTM) Coordinate System Information
$ Gpdtm, <1 >,< 2 >,< 3 >,< 4 >,< 5 >,< 6 >,< 7>, <8> * hh <CR> <LF>
<1> code of the local coordinate system w84
<2> the coordinate system subcode is empty.
<3> latitude offset
<4> latitude hemisphere N (northern hemisphere) or S (Southern Hemisphere)
<5> longitude offset
<6> longitude hemisphere E (eastern longitude) or W (Western longitude)
<7> height offset
<8> coordinate system code w84 Ii. Garmin-defined statements
1. Estimated Error information (pgrme) estimation error information
$ Pgrme, <1>, M, <2>, M, <3>, M * hh <CR> <LF>
<1> HPE (horizontal estimation error), 0.0 ~ 999.9 meters
<2> VPE (vertical estimation error), 0.0 ~ 999.9 meters
<3> EPE (location estimation error), 0.0 ~ 999.9 meters
2. GPS fix data sentence (pgrmf) GPS Positioning Information
$ Pgrmf, <1 >,< 2 >,< 3 >,< 4 >,< 5 >,< 6 >,< 7 >,< 8 >,< 9>, <10>, <11>, <12>, <13>, <14>, <15> * hh <CR> <LF >
<1> Number of GPS weeks (0 ~ 1023)
<2> GPS seconds (0 ~ 604799)
<3> UTC date, in ddmmyy format
<4> UTC time, hhmmss (hour/minute/second) Format
<5> GPS jump seconds
<6> latitude ddmm. Mmmm (degree) format (the preceding 0 will also be transmitted)
<7> latitude hemisphere N (northern hemisphere) or S (Southern Hemisphere)
<8> longitude dddmm. Mmmm (degree) format (the preceding 0 will also be transmitted)
<9> longitude hemisphere E (eastern longitude) or W (Western longitude)
<10> mode, M = manual, a = automatic
<11> positioning type, 0 = No positioning, 1 = 2D positioning, 2 = 3D Positioning
<12> ground speed (0 ~ 1851/hour)
<13> ground heading (000 ~ 359 degrees, with zhenbei as the reference)
<14> position precision factor of pdop (0 ~ 9, rounded to an integer)
<15> tdop time precision factor (0 ~ 9, rounded to an integer)
3. Map datum (pgrmm) Coordinate System Information
$ Pgrmm, <1> * hh <CR> <LF>
<1> name of the currently used coordinate system (variable data length, for example, "WGS 84 ")
Note: This information is used for real-time connection with mapsource.
4. Sensor status information (pgrmt) working status information
$ Pgrmt, <1 >,< 2 >,< 3 >,< 4 >,< 5 >,< 6 >,< 7 >,< 8>, <9> * hh <CR> <LF>
<1> product model and software version (variable data length, for example, "GPS 15l/15 h ver 2.05 ")
<2> Rom verification test, P = passed, F = failed
<3> receiver discontinuous fault, P = pass, F = fail
<4> storage data, r = persistence, L = loss
<5> clock information, r = keep, L = Lost
<6> non-continuous oscillator drift, P = pass, F = over-drift Detected
<7> data is not collected consecutively. c = the data is being collected. It is null if no data is collected.
<8> GPS receiver temperature, in degrees Celsius
<9> GPS receiver configuration data, r = maintained, L = Lost
Note: This statement is sent once per minute, regardless of the selected baud rate.
5. 3D velocity information (pgrmv) 3D speed information
$ Pgrmv, <1 >,< 2 >,< 3> * hh <CR> <LF>
<1> easterly speed, 514.4 ~ 514.4 meters/second
<2> North speed, 514.4 ~ 514.4 meters/second
<3> uplink speed: 999.9 ~ 9999.9 meters/second
6. DGPS beacon information (pgrmb) Beacon difference Information
$ Pgrmb, <1>, <2>, <3>, <4>, <5>, K, <6>, <7>, <8> * hh <CR> <LF>
<1> beacon station frequency (0.0, 283.5 ~ 325.0 kHz, interval: 0.5 kHz)
<2> beacon bit rate (50,100, or BPS)
<3> SNR signal-to-noise ratio (0 ~ 31)
<4> beacon data quality (0 ~ 100)
<5> distance from the beacon station, measured in kilometers
<6> beacon receiver communication status, 0 = check wiring, 1 = no signal, 2 = tuning, 3 = Receiving, 4 = Scanning
<7> differential source, r = RTCM, W = WAAS, n = non-differential location
<8> differential status, A = automatic, W = only WAAS, r = only RTCM, n = no differential signal received Iii. Text format description: Region description: Length: Note:
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Period start character 1 Always '@'
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/Year 2 The last two digits of UTC
| ------------------------------------------------------
| Month 2 UTC month, "01"... "12"
T | ------------------------------------------------------
I | day 2 UTC, "01" .. "31"
M | ------------------------------------------------------
E | hour 2 UTC, "00"... "23"
| ------------------------------------------------------
| Minute 2 UTC, "00" .. "59"
| ------------------------------------------------------
Seconds 2 UTC seconds, "00" .. "59"
------------------------------------------------------
/Latitude hemisphere 1 |
