nmea software

Detailed explanation of GPS NMEA-0183 Protocol NMEA AssociationThe purpose of this discussion is to establish a unified btcm (maritime radio technology commission) standard in different GPS (GPS) navigation devices by the National Oceanic Electronics Association (NMEA-National Marine ElectronicsA set of communication protocols developed by Associa-tion. Accordi

NMEA is the abbreviation of National Marine Electronics Association (National Maritime Electronics Association. The Association is a private institution dedicated to research on marine electronic devices and has developed NMEA standards for communication interfaces and protocols between GPS (GPS) electronic devices. NMEA-0183 protocol is currently the most widely

Source: NMEA Protocol host computer C #Some time ago wrote two with the NMEA protocol of the upper machine, here to do a summary and record. To share with you, but also for the future will not forget.NMEA protocol in general, relatively simple, is a relatively mature weather protocol.There are several main parameters and their formats: Wind speed and wind direction; Air temperature; Soil te

Recently engaged in GPS receivers, learn to view NMEA-0183 data protocolsCode The NMEA data is as follows:$ Gpgga, 121252.000, 3937.3032, N, 11611.6046, E, 2.0, 45.9, 5.7, M,-0000, M, * 77$ Gprs mc, 121252.000, A, 3958.3032, N, 11629.6046, E, 15.15, 359.95, 070306, A * 54$ Gpvtg, 359.95, T, M, 15.15, N, 28.0, K, A * 04$ Gpgga, 121253.000, 3937.3090, N, 11611.6057, E, 1.2, 44.6, 5.7, M,-0000, M, * 72$ Gpgs

Main.c#include #includestring.h>#include#includeintMain () {Char* str ="123,456,789,0123456,123456,0,09,10"; Charsub[3]; intCount =0, index =0; for(index =0; Index index) { if(Str[index] = =',') ++count; if(Count = =6) Break; } strncpy (Sub,str[index+1],2); sub[2] =' /'; printf (sub); //123,456,789 intn =atoi (sub); printf ("string =%s integer =%d\n", Sub, n);}EndC-Language string lookup (NMEA protocol parsing for GPS

NMEA is a set of standard information that defines the output of the receiver. There are several different formats, each of which is an independent ASCII format that separates data streams. The data stream length ranges from 30 to characters, the output is usually selected at intervals per second. The most commonly used format is "GGA". It contains the positioning time, latitude, longitude, height, number of satellites used for positioning, and other

1. Standard nmea0183 statements1. Global Positioning System Fix Data (GGA) GPS Positioning Information$ Gpgga, ,,,,,,,,, m, , M, , * hh UTC time, hhmmss (hour/minute/second) Format latitude ddmm. Mmmm (degree) format (the preceding 0 will also be

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In the past few days, GPS on WM wanted to obtain satellite data and found some information. There are two possible methods: 1, the Traditional GPS Programming Method reads data from the GPS device through the serial port, parses and processes the

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