RFID AND THE WIRELESS NETWORK SENSORS CS 556

RFID AND THE WIRELESS NETWORK SENSORS CS 556 Idris 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 1940 s

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

Usage 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

RFID System:

Frequencies • low frequency (blow 1 MHZ), universal frequency required worldwide for scientific instrumentation • 13. 56 MHZ • and ultra high frequency which is over 800 MHZ

The Transmission Differences 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.

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?