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GPS Data Logger into MMC/SD Memory Card

Global Positioning System (GPS) has been used in various commercial applications including transportation, navigation and vehicle position tracking, which when coupled with external memory stick the technology can help track the complete journey of any vehicle or moving objects like human or animals.

This project aims to construct a vehicle position logging system using GPS and SD/MMC (Multi Media Card). The system comprises two modules. The GPS data receiver module gets the data from GPS receiver and processes it.  The data storage module consists of an interface circuit between the GPS and the MMC card. This module transmits the data to the MMC card that can be displayed on a computerized map.

The requested data is then superimposed on the Google Earth map, which covers major cities and towns within India and abroad.
The project works satisfactorily in real time, can locate the vehicle travel locations in the form of longitude, latitude with the margin of error not more than 6 meters from the actual location.  This system also logs the information like date, time and speed information of the vehicle.

The major building blocks of this project are:

  1. Microcontroller based control system with regulated power supply.
  2. GPS receiver.
  3. Memory Stick (MMC) interfacing system.



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