GPS data description

Source: Internet
Author: User

$ Gprs mc, 062612.000, A, 5057.0415, N, 00707.0683, E, 18.49, 50.36, 230408, A * 6C <br/> $ gpgga, 062613.000, 5057.0454, n, 00707.0727, E, 1.0, 79.7, 47.7, 0000, M, M, * 68 <br/> $ gpgsa,, 22, 1.7, 1.0*30 <br/> $ gprs mc, 1.4, A, 062613.000, N, 5057.0454, E, 00707.0727, 17.05, 24.44 ,,, A * 66 <br/> $ gpgga, 062614.000, 5057.0500, N, 00707.0743, E, 1.0, 80.1, 47.7, M ,, 0000 * 6D <br/> $ gpgsa, A, 3, 03, 1.7, 1.0, 1.4, * 30 <br/> $ gprs mc, 062614.000, A, 5057.0500, N, 00707.0743, E, 17.63, 4.96, 230408, A * 5E <br/> $ gpgga, 062615.000, 5057.0552, N, 00707.0739, e, 1.0, 80.8, 47.7, 0000, M, M, * 6f <br/> $ gpgsa, A, 22 ,,,,, 1.7, 1.0, 1.4*30 <br/> $ uplmc, 062615.000, A, 5057.0552, N, 00707.0739, E, 19.52, 353.02, 230408 ,,, A * 55 <br/> $ gpgga, 062616.000, 5057.0608, N, 00707.0725, E, 1.0, 81.2, 47.7, M ,, 0000*66 <br/> $ gpgsa, A, 1.7, 03, 1.0, 1.4, * 30

Uplmc

Recommendation positioning information (uplmc)
  
$ Uplmc, <1>, <2>, <3>, <4>, <5>, <6>, <7>, <8>, <9>, <10>, <11>, <12> * hh

<1> UTC time, hhmmss (hour/minute/second) Format
<2> positioning status, A = valid, V = invalid
<3> latitude ddmm. Mmmm (degree) format (the preceding 0 will also be transmitted)
<4> latitude hemisphere N (northern hemisphere) or S (Southern Hemisphere)
<5> longitude dddmm. Mmmm (degree) format (the preceding 0 will also be transmitted)
<6> longitude hemisphere E (eastern longitude) or W (Western longitude)
<7> ground speed (000.0 ~ Section 999.9, the previous 0 will also be transmitted)
<8> ground heading (000.0 ~ 359.9 degrees, with North as the reference, the previous 0 will also be transmitted)
<9> UTC date, in ddmmyy format
<10> magnetic angle (000.0 ~ 180.0 degrees, the previous 0 will also be transmitted)
<11> magnetic angle direction, E (East) or W (West)
<12> mode indication (output only in nmea0183 3.00, A = self-locating, D = differential, E = estimation, n = Invalid Data)

Gpgga

GPS fixed data output Statement ($ gpgga)
This is the main data of GPS Positioning and the most widely used data.
$ Gpgga
The statement contains 17 fields: Statement ID header, world time, latitude, latitude hemisphere, longitude, longitude hemisphere, positioning quality indication, number of satellites used, horizontal accuracy, altitude, height unit, geolevel
Height, height unit, differential GPS data period, differential reference base station number, checksum end mark (with carriage return <CR> and line feed <LF>), respectively
. The structure and fields of the data frame are interpreted as follows:
  
$ Gpgga, <1 >,< 2 >,< 3 >,< 4 >,< 5 >,< 6 >,< 7 >,< 8 >,< 9>, m, <10>, M, <11>, <12> * XX <CR> <LF>
$ Gpgga: Start Guide and statement format description (this sentence is GPS positioning data );
<1> UTC time, in the format of hhmmss. Sss;
<2> latitude, in the format of ddmm. Mmmm (the first digit is zero and will also be transmitted );
<3> latitude hemisphere, N or S (north or south latitude)
<4> longitude, in the format of dddmm. Mmmm (the first zero point will also be transmitted );
<5> longitude hemisphere, E or W (eastern longitude or Western longitude)
<6> positioning quality indication, 0 = positioning is invalid, 1 = positioning is valid;
<7> Number of satellites used, from 00 to 12 (the first zero will also be transmitted)
<8> horizontal accuracy: 0.5 to 99.9
<9> the height of the antenna from sea level-9999.9 to 9999.9 meters
M refers to the unit meter.
<10> geolevel Height:-9999.9 to 9999.9 meters
M refers to the unit meter.
<11> Differential GPS data period (RTCM SC-104), and finally set up the number of seconds transmitted by RTCM
<12> differential reference base station number, ranging from 0000 to 1023 (the first 0 will also be transmitted ).
* Statement end identifier
The exception or checksum of all ASCII codes between XX from $ *
<CR> press ENTER
<LF> line feed

Gpgsa

  $ 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 manual 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

Visualized satellite state output Statement ($ gpgsv)
Example 2: $ gpgsv, 33,240, 36,074, 21,078, 36,313, 42*78
Standard Format: $ gpgsv, (1), (2), (3), (4), (5), (6), (7 ),... (4), (5), (6), (7) * hh (CR) (LF)
Each part has the following meanings:
(1) Total number of GSV statement messages; 2;
(2) Current GSV statement number: 1;
(3) Total number of visible satellites: 08;
(4) satellite No.: 06;
(5) elevation (00 ~ 90 degrees): 33 degrees;
(6) azimuth (000 ~ 359 degrees): 240 degrees;
(7) signal-to-noise ratio (00 ~ 99db): 45db (the information of satellites 10, 16, and 17 are followed in sequence );
* Sum verification domain;
Total HH verification count: 78;
(CR) (LF) Press enter, line feed.
Note: Each statement can contain up to four satellites. Each satellite has four data items, namely:
(4)-Satellite Number, (5)-elevation angle, (6)-azimuth, (7)-signal-to-noise ratio.

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