Im going to implement protable GPS Tracking device. A GPS Module and an SD Card Module to log your latitude and longitude when you travel anywhere. The data saved in the SD card used to create the map using services like Google Earth and Google Fusion Tables
I used the tinyGPS library to decode the NMEA GPS Data. The GPS shield and SD Card shield that I’m using with arduino to create this thing.
Coordinates are firstly saved in the SD card and after that we can export the coordinates to the Google Earth or Google Fusion table. Then we can see the traveled path according to the coordinates we observe in the Google Earth or Google Fusion Table
**Further Improvments **
I’m planning to encrypt the data inside the SD card and decrypt when we want to use the data. When the GPS signal’s not available compass and a accelerometer will get the readings. This application is very suitable for Dakar racing rally.
Im going to implement protable GPS Tracking device. A GPS Module and an SD Card Module to log your latitude and longitude when you travel anywhere. The data saved in the SD card used to create the map using services like Google Earth and Google Fusion Tables
I used the tinyGPS library to decode the NMEA GPS Data. The GPS shield and SD Card shield that I’m using with arduino to create this thing.
Coordinates are firstly saved in the SD card and after that we can export the coordinates to the Google Earth or Google Fusion table. Then we can see the traveled path according to the coordinates we observe in the Google Earth or Google Fusion Table
**Further Improvments **
I’m planning to encrypt the data inside the SD card and decrypt when we want to use the data. When the GPS signal’s not available compass and a accelerometer will get the readings. This application is very suitable for Dakar racing rally.
Posting the same question in multiple places. Don't do it.
Nuwan_Senanayake:
[/b]1. how to encrypt the data i saved in sd card and decrypt it.
You'll have to provide your own encryption scheme. Making the contents obscure (difficult to understand) would be easy. Making them secure (impossible to read without knowing secret information) would be much harder. I suggest you concentrate on getting the solution working before you worry about keeping the results secret.
Nuwan_Senanayake:
2. how to communicate with gps module?
It's a common problem, and you should have no trouble finding plenty of examples. What have you tried?
Nuwan_Senanayake:
3. how to use accelorometer and a compass with a real time clock when gps is not available??
Use an accelerometer and compass to do what? If you mean to determine your absolute position based on relative movements from a known starting point, I suggest you give up the idea of doing that. While possible in theory, in reality it's extremely difficult to do at all, let alone well enough to be useful for any practical purpose.