Test your basic knowledge |

RFID Technology

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Interprets the signal received from reader and controls memory storage and retrieval






2. Standards = EPC global & ISO 18000 - Different Organizations






3. Ranges from 300 MHz to 1GHz - Passive system operates at 915 MHz in the US and at 868 MHz in Europe - Active system operates at 315 MHz and 433 MHz - Can use both active and passive tags - Has a fast data-transfer rate between tag and reader - but pe






4. An electronic signal or indicator - Audible alarms - strobes - light stacks - etc.






5. One of the most versatile actuators. Widely used in manufacturing plants. They enable a variety of actions to be performed (such as monitoring and controlling a product packaging line - or applying a predetermined amount of torque to nuts in a mechan






6. Measurement of power for radiation of antenna used in US






7. Receives signal from reader and radiates a response back to the reader - LF or HF: induction coil - UHF or Microwave Frequency: printed antennas






8. These are categorized into Aloha based protocols and tree based






9. The time during which a reader can emit RF energy to read tags






10. RF energy radiates from antenna in circular fashion - Slightly reduced range - Provides greater tolerance to tags in various orientation and bounce off of and bypass obstructions - 2 E-field components that are equal in magnitude - 90 degrees out of






11. Dead zones that surround protrusions in antenna footprint






12. Why ___________ is better: Cost of printed antennas varies between 24-44% of copper antennas - Printed antennas show 93-96% radiation efficiency compared to copper antennas...






13. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible






14. Die-cut web with adhesive - film face






15. Proximity systems (low range -mm) medium range (cm) and long range (m)






16. Used to transmit AC power and the clock cycle via its antennas to the tags in its read zone






17. Time for an associated tag to be read






18. LF and HF passive tags - Current flowing through a conductor generates a magnetic field around the conductor and vice versa - Readers antenna uses current to generate magnetic field - Tag's antenna when exposed to the magnetic field generates the cur






19. Measurement of power for radiation of antenna used in Europe






20. Smart cards - smart label - etc.






21. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves






22. Similar to guessing a number made of 1's and 0's by guessing each number one at a time






23. The act of writing the tag data by reader






24. Determines the read zone of a reader - Also called an antenna pattern - 3D region shaped somewhat like an ellipsoid or a balloon projecting out the front of the antenna. Never uniformly shaped like an ellipsoid but almost always contains deformities






25. The 3D energy field generated by the antenna (also called reading area)






26. Low Frequency(LF) - High Frequency(HF) - Ultra high frequency (UHF) and Microwave frequency






27. More than one tag tries to respond to a reader at the same time.






28. Class= Functionality - - Class 0 -1 -2 -3 -4 & 5






29. Inductive coupling and passive backscatter (capacitive coupling)






30. Provides electrical power to other tag elements - Can harvest power from the signal received from the reader - Can have its own internal power source - Active - semi-passive and passive






31. RF energy radiates from antenna in linear fashion - Provide longest range - Sensitive to the orientation of tag - Has single E-field component - Can have a narrow beam pattern - Best for application with known tag orientation






32. Also called an 'interrogator' - A device that can read from and write data to compatible RFID tags - Also doubles up as a writer






33. IC Chip - Antenna/Inductor - Power Source






34. changes signal received from reader to include data that will be transmitted back to the reader






35. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.






36. Most sensitive component of an RFID system - Housed in enclosures for easy mounting. Look like plain - shallow boxes. - Varying placement of this is usually the easiest adjustment while troubleshooting and is vital to achieving a high read rate






37. Frequencies between 30-300 KHz - Generally use passive tags - have low data-transfer rates from the tag to the reader - and are especially good if the operating environment contains metals - liquids - dirt - snow - or mud. Active tags also available






38. The sender of this found out whether the transmission was successful by listening to the broadcast. If there was a collision - the sender transmitted after a random waiting period. The tags periodically send data packets with random quiet periods and






39. Continuous web - no adhesive






40. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.






41. Inductive coupling and passive backscatter (capacitive coupling)






42. In this mode - reader continuously reads tags in its read zone






43. Also called a fixed reader - Mounted on a wall - portal - or some suitable structure in the read zone. Readers not generally very tolerant of harsh environmental conditions - therefore if installed outdoors or on moving objects - take care to ruggedi






44. Responsible for implementing the reader protocol to communicate with compatible tags






45. Used for storing data such as the reader configuration parameters and a list of tag reads






46. In this this antenna type - the RF waves emanate in a linear pattern from the antenna. Waves have only one energy field






47. Reader receives and executes commands from an application running on a host machine from a user using a vendor-supplied client to communicate with the reader. After reader fully executes the current command - it waits for the next. Reader can execute






48. 'Central nervous system' of entire RFID hardware system. Establishing communication with and control of this component is the most important task of any entity which seeks integration






49. Optical and RFID hybrid






50. Serves as writable or non-writable data storage