nmea 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

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 (

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

1. Standard nmea0183 statements1. Global Positioning System Fix Data (GGA) GPS Positioning Information$ Gpgga, 2. gps dop and active satellites (GSA) current satellite information$ Gpgsa, 3. GPS satellites in view (GSV) Visible satellite information$ Gpgsv, Note: 4. recommended minimum specific GPS/transit data (RMC) r

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 data. 2. Apply the gpsid function library provided by Windows Mobile to interview the Traditional

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.

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, 11611.60

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

enables serial reception of GPS Data Reading and Writing Jon person teaches you how to use. Net/. netcf to write GPS applications. Use SerialPort to read GPS Data How to coordinate coordinates of GPS longitude and latitude How to Write a GPS application -- Introd

For the original article, see Day 03: GPS CompassRequirement Use GPS information to display the compass.Implementation The GPS compass displays the azimuth of the current position on the UI. This information is included in the NMEA output by the GPS receiver. The eighth fiel

I have developed GPS-related embedded software for several years, So when talking about a program to test the GPS positioning module, the first reaction is to read the data from the GPS module through the serial port, and then parse the NMEA format data of GPS. Today, due to

support navigation software such as Kay lide and Dao Tong. The following will begin from the GPS NMEA-0183 protocol to Android GPS Hal transplantation and module compilation load a brief introduction to how Android car navigator "made. The following source code (theoretically support all output NMEA-0183 format data s

GPS intermediate driver Since the introduction of GPS intermediate driver (GPS intermediate driver) in Windows Mobile 5.0Program(Gpsid), it is much easier to develop a Windows Mobile Application Based on GPS (global positioning system. The reason is that it adds an intermediate layer between the application program c

Today, because of the needs of the work, the previous compilation of a GPS test program has been revised again. This program is a bit of a history, I wrote 11 years, when I learned how to develop Android, is an experimental work. Now the work needs to be put back out to fix. At the same time I found that the Android GPS service is not deep, so today I deliberately read some information about

Today, due to work needs, I took out a previously written GPS test program and modified it again. I wrote this program for 11 years. It was not long before I learned Android development. It was an experimental work. Work now needs to be done again. At the same time, I found that I do not know much about the GPS service of Android, so today I read some information about the

GPS intermediate driver Since the introduction of GPS intermediate driver (gpsid) in Windows Mobile 5.0, it has developed a global positioning system (GPS) windows Mobile applications become much simpler. The reason is that it adds an intermediate layer between the application program compiled by the developer and the GPS