CS556 Idris Khames. What is RFID? RFID stands for radio frequency identification. It is one of...
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Transcript of CS556 Idris Khames. What is RFID? RFID stands for radio frequency identification. It is one of...
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?