The project aims at developing an intelligently navigable Robot using GPS, GSM and Digital compass. The robot moves according the GPS coordinates it receives from the user in the form of SMS.SR04 sensor for obstacle avoiding. And it will send the message alerts when the robot changes its path.   GPS is a navigation system that provides instantaneous sub-meters accuracy position information for users worldwide. It is based on the multilateration principle where the user on the surface of the earth determines position using range information from multiple satellites. Because of its superior performance and capabilities, GPS is slated to be the primary means of navigation for all sectors.   The controlling device of the whole system is a Microcontroller. The Microcontroller reads the predefined formatted SMS and extracts the GPS coordinates sent by user and moves the Robot in that direction with the help of GPS and Digital compass. If there is any obstacle in its path, it avoids them and moves accordingly. To perform this intelligent navigation, the Microcontroller is loaded with an efficient program written using embedded ‘C’ language.

 

The major features of this project are:  

1. Dynamic inputting of GPS coordinates.
2. Usage of GSM technology.
3. Usage of Digital compass technology.
4. To avoid the obstacles using SR04 sensors.

    This project provides us learning’s on the following advancements:

1. Interfacing of GPS receiver with microcontroller.
2. Interfacing of Digital compass with microcontroller.
3. Interfacing GSM modem to Microcontroller
4. Embedded C programming.
5. PCB design.

  The major building blocks of this project are:  

1. Regulated Power Supply.
2. Global Positioning System (GPS Receiver).
3. Digital Compass.
4. GSM modem.
5. Ultrasonic sensor.
6. GSM.
7. Micro controller.
8. Crystal oscillator.
9. LED indicators.
10. Reset

  Software’s used:  

• PIC-C compiler for Embedded C programming.
• Express SCH for Circuit design.

   

Block diagram:  

video: