Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Rfid and gsm based cas

every classroom need technology and in every student and teacher's hand because it is a pen and paper of our time and it's lens through which we experience much of world

  • Login to see the comments

Rfid and gsm based cas

  1. 1. RFID STANDS FOR…. RADIO FREQUENCY IDENTIFICATION GSM STANDS FOR …… GLOBAL SYSTEM FOR MOBILE COMMUNICATION “We need technology in every classroom and in every student and teacher’s hand because it is the pen and paper of our time,and it’s the lens through which we experience much of this world” –David Warlick
  2. 2. 1. About RFID
  3. 3. KEY COMPONENT TO BE USED FOR CLASS ATTENDANCE A) An RFID Tag b) An RFID Antenna C) An RFID Reader D)GSM MODULE e) An RFID Station/PC
  4. 4. AN RFID TAG
  5. 5. An RFID Tag are made of :- 1)Chip :- Hold information about physical object 2)Antenna :-Transmit signal at radio frequency 3)Package :-encase chips and antenna so that tag can be attached to physical object Tag are Active Tag Passive Tag Power –Battery Power-No(get from reader through mutual inductance) Signal –stronger Signal –Weaker Range-100 feet Range-upto 30 feet NOTE :- These cards are known as proximity card
  6. 6. AN RFID READER An RFID Reader is a device used to gather data information from an rfid tag,which is used to track individual objects.Radio waves are used to transfer data to RFID reader from an rfid tag
  7. 7. Transfer of energy from one circuit[READER] to another[CARD] by mean of electromagnetic waves at Radio frequency through mutual inductance
  8. 8. INTRODUCTION GSM is a 2nd generation[2-G] cellular standard developed to cater voice services and data delivery using time division multiplication access[TDMA] GSM SERVICES Tele services :-Includes mobile phones and emergency calls etc. data services :-Includes SMS(short messge service),Fax,voice mail,electronic-mail. Supplementary service:-I/C&O/G calls,call forwarding,call holding,call waiting,conference etc.
  9. 9. 1.)Communication :-mobile,wireless communication,support for voice and data services 2.)Total mobility :-International access,chip-card enables use of access points of different providers 3.)World wide connectivity :-one number,the network handles every location 4.)High capacity :-better frequency efficient,smaller cells more,customer per cell 5.)High transmission capacity :-High audio quality and reliability for wireless,uninterrupted phone calls at higher sppeds(e.g.,from cars and trains) ADVANTAGE OF GSM
  10. 10. IMAGE VIEW OF THE GSM
  11. 11. RFID BASED ATTENDANCE SYSTEM
  12. 12. FLOW CHART
  13. 13. COMPLETE BLOCK DIAGRAM OF CAS
  14. 14. 1.)Proxy attendance can be caught. 2.)Hardcopy paper work of attendandacesheet is reduced 3.)Data can be stored long time compare to attendance sheets. ADVANTAGE RFID V/S BAR CODE COMPARISON RFID and BAR Codes are similar in that they are both data collection technologies,meaning they automate the process of collecting data.
  15. 15. Line of sight Not required (In most cases) Required Read Range Passive UHF RFID : -upto 40 feet(fixed readers) -upto 20 feet(handheld readers) Active RFID : -upto 100’s feet or more Several inches upto several feets. Read Rate 10’s,100’s,or 1000’s simultaneously Only one at a time Identification Can uniquely identify each item /asset tagged Most barcodes only identify the type of item(UPC code)but not uniquely Read/Write Many RFID tags are Read/Write Read only Technology RF(Radio frequency) Optical(LASER) Interference Like TSA(Transportation security administration),same RFID frequencies don’t like metal and liquids.They can interference with same RF frequencies Obstructed barcodes cannot be read(dirt covering barcode,torn barcode,etc). Automation Most “fixed” readers don’t require human involvement to collect data(automated) Most barcode scanners require a human to operate(labor intensive)
  16. 16. OTHER APPLICATION ARE 1.)people tracking 2.)Document tracking 3.)Health care 4.)Manufacturing 5.)Department of road transportation and highways 6.)Center for railway information system 7.)Apparel tracking 8.)Laptop tracking
  17. 17. PROS AND CONS PROS CONS -RFID tags are very simple to install/inject inside the body of animal,thus helping to keep tract on them. -Expensiveness of technology than Bar code -The RFID tags can store data upto 2kb. -The RFID technology can not be easily replicated and therefore,it increases the security of the product. Collision : -signals can ‘collide’when multiple signals are read at once -Those signals are either lost or read with errors -mobility -failure -Unlimited scope -still evolving -reduced human intervention
  18. 18. CONCLUSION +RFID Is helpful in tracking assets–human and machine +Used in inventory control +Scope limited by imagination of its implementation FUTURE PROSPECTS +Can be extended to embedded system Ex:-so the RFID chip can be embedded within the laptop for tracking +Application software can be made web based

×