Land Mine Detection and Indication using GPS and GSM

LANDMINES

land mine  n.An explosive device laid usually just below the surface of the ground.

A land mine is an explosive device designed to be placed on or in the ground to explode when triggered by an operator or the proximity of a vehicle, person or animal. The name originates from the practice of sapping, where tunnels were dug (much like mining) under enemy fortifications or forces. These tunnels ("mines") were first collapsed to destroy fortifications above, and later filled with explosives and detonated. Landmines generally refer to devices specifically manufactured for this purpose, as distinguished from improvised explosive devices (IEDs).

Landmines are explosive devices that are designed to explode when triggered by pressure or a tripwire.  The purpose of mines when used by armed forces is to disable any person or vehicle that comes into contact with it by an explosion of fragments released at high speeds.

The exact number of landmines is unknown.  However, it is estimated that approximately 70 million landmines and other unexploded ordnance (UXO) are buried in more than 80 countries worldwide. 

Landmines can remain active more than 50 years after they are planted in the ground. For this reason, there is a continuing worldwide effort to rid the world of landmines. 

We have designed a project in which we can able to track the position o f the land mines using the GPS and GSM and a metal detector.

Operation:

The vehicle is fitted with a Metal detector to sense the land mines. The vehicle will have a GPS Module which will receive the information from the satlite to know about the position of the vehicle (Lat itude and longtitude position). The vehicle will also have a Noikia GSM phone which will send information about the land mines positon to a remote PC through a cell phone. So that we can know the exact position of the mines.

Mine 1 Lat 60 Lon 80

Mine 2 Lat 79 Long 89

Power Supply

Provides +5VDC and +12VDC power supply for the IC’s and the motors for

its proper operation

Dspi30F4013 Microcontroller

Microchip's newest dsPIC® Digital Signal Controller (DSC) and PIC24

MCUs offer the performance speed of 40 million instructions per second

(MIPS), selfprogramming capabilities via Flash memory and industrial and

extended temperature ranges. This IC severs as a CPU for the whole system.

Metal Detector

Metal Detector or a Proximity sensor is used to detect the Landmines

and converts that into electrical signal and it is connected to the dsPIC

Microcontroller.

GPS Receiver

ProGin SR-92 is a low-power, ultra-high performance, easy to use GPS

smart antenna module based on SiRF’s third generation single chip. Its low

power consumption and high performance enables the adoption of handheld

applications. The slim design allows SR-92 to be placed on top side of the

housing to have best GPS signal reception. The 5-pin I/O interface is then

connected to the main board with either connector or wire soldering.

GSM Mobile (Nokia 3310)

A Nokia 3310 mobile is used as a GSM modem and is used to send

SMS Messages to the remotely located Monitoring unit.

Stepper Driver

This section is necessary to Drive the Stepper motor. Since the signal

from the microcontroller cannot drive the motor directly, it is amplified and

strengthened by the stepper driver section and the signal is applied to the

Stepper motor.

Stepper Motor

A stepper motor is an electric machine that rotates in discrete angular

increments or steps. It is operated by applying pulses of a specific frequency

to the input of the motor. Each pulse applied to the motor causes its shaft to

move a certain angle of rotation, called a stepping angle. This Stepper motor

is used to run the mechanical model