01-01-2013, 09:01 AM
IDENTIFICATION AND AUTHENTICATION OF MIILITARY CARGO TRUCKS USING RADIO FREQUENCY
IDENTIFICATION AND AUTHENTICATION.docx (Size: 494.01 KB / Downloads: 25)
OVERVIEW
This project basically deals with the problems associated with the authentication of trucks carrying cargo and other equipments/soldiers to the military base.
It is required to identify the cargo from a distance so that in case of any suspicious vehicle appropriate measures may be taken in advance.
This problem can be solved by using the radio frequency identification technique.
TECHNOLOGY BACKGROUND
It’s generally said that the roots of radio frequency identification technology can be traced back to World War II. The Germans, Japanese, Americans and British were all using radar—which had been discovered in 1935 by Scottish physicist Sir Robert Alexander Watson-Watt—to warn of approaching planes while they were still miles away. The problem was there was no way to identify which planes belonged to the enemy and which were a country’s own pilots returning from a mission.
Under Watson-Watt, who headed a secret project, the British developed the first active identify friend or foe (IFF) system.
They put a transmitter on each British plane. When it received signals from radar stations on the ground, it began broadcasting a signal back that identified the aircraft as friendly. RF IDENTIFICATION works on this same basic concept. A signal is sent to a transponder, which wakes up and either reflects back a signal (passive system) or broadcasts a signal (active system).
For any RF IDENTIFICATION initiative to succeed, there are
three critical areas of technical expertise,
which are
• RF Engineering
• Embedded Design &
• Middle ware
WORKING
This project works on the same principle stated above.
Our project mainly consists of three parts—
TAG module
READER module
Signal processing and decision control unit
CONCEPTUAL VIEW OF THE PROJECT
The transponder unit continuously scans for a new vehicle. A cargo approaching the base station contains the tag mounted on it . Tag sends a 12 bit frame containing 8 bit address and 4 bit data.
The reader unit receives the signal and passes it to control unit which searches it`s database to identify the address.
If address is found then it decides whether to authenticate the vehicle for passage or not.
Decision along with any messages (if required ) are then displayed on a lcd display,according to which the check officials take the appropriate actions.