rfid and the wireless network sensors

RFID AND THE WIRELESS NETWORK SENSORS

CS556Idris Khames

What is RFID?

• RFID stands for radio frequency identification. It is one of automated systems which used to collect data

• The beginning of innovating RFID is when scientists started to study radio waves specifications in the 1940s

-RFID systems-Sensors network-Architectures and Network Programming- RFID Systems and In-network Processing

RFID been used in multiple applications most popular are:- In hospital Patient/ medical equipment

tracking- In marketing and supply chain

replacing the barcode.- In security monitoring and tracking

devices GPS- In computer and wireless network as

in the antenna

Usage

RFID System:

• low frequency (blow 1 MHZ), universal frequency required worldwide for scientific instrumentation

• 13.56 MHZ

• and ultra high frequency which is over 800 MHZ

Frequencies

Omnidirectional Antennas:which radiate signal could be more or less in all directions. • These are used when the relative

position of the other station is unknown or random.

• also used at lower frequencies where a directional antenna would be too large, or basically to cut costs in applications where no need for a directional antenna .

The Transmission Differences

Directional or Laser-beam Antennas:• which are intended to specially

radiate on a precise focus direction or directional shape.

• With directional antenna we can expect an effective beam width

• however! The beam width decreases as distance increases

The Integration of RFID & Wireless Network sensors

• The RFID or Radio Frequency Identification, has been recognized as a key element to the Network, globally.

• As the information can be accessed at any time any where via the network. although its a fantastic innovation it dose have its drawback

• Privacy Issue is the main concern, as the technology have the capability to pinpoint the locations a privacy will always be a an issue

Thank you.

Any question or comment?