Arduino + USB Host Shield + 3G Modem + GPS = Realtime Tracking
This project is the development of tracking systems for all the moves that will be inserted into the database for each movement is read by its NMEA GPS will be delivered via 3G or GPRS networks. The position will be received by the GPS location of the next satellite position location is transmitted via 3G or GPRS network via a modem to a specific IP address database already installed. The data from the database is read by a program created by integrating Google Maps with the database. Simple concept, of course, the concept should be tested by observing the weather, gravity, velocity readings by GPS and speed data transmission by modem 3G or GPRS to the database. Implementation will be applied to the tracking system for train travel. So that will be read by the master control center of the train which started from there, the speed, the distance between the train and even the density of room inside the train but it also can be made automatic for each station announcer who passed and will pass by the train.