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. Smart cards - smart label - etc.






2. Can automatically turn on/off reader based on some external event detected. Can be used to provide some kind of input trigger to a reader






3. 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






4. 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






5. Readability of a tag greatly depends on this and the angle at which the tag is presented to the reader






6. IC Chip - Antenna/Inductor - Power Source






7. Developed in the 1970s for a radio packet network at the University of Hawaii (hence the name) - 4 tags and 1 reader - Allows tags to collide partially (Theoretically proven maximum utilization=18.4%)






8. 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






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






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






11. 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






12. Type of stationary reader that can print a bar code and create (i.e. write) an RFID tag on a smart label in an integrated operation - Reads the smart label tag that it has just written to validate the write operation. If the validation fails - it rej






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






14. The reflection of reader antenna signals on RF-opaque causes this






15. Every time a tag is read - it is saved to this






16. Optical and RFID hybrid






17. Inductive coupling and passive backscatter (capacitive coupling)






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






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






20. '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






21. When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result






22. Die used to "stamp" out the shape of antenna. Take up roller rolls the unused material into waste roll.






23. 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






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






25. Continuous web - no adhesive






26. UHF and microwave passive tags






27. When two waves (in phase) impose on each other and enhance the original signal and give rise to protrusions






28. Reader transmits a continuous-wave RF signal into the reading environment






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






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. Die-cut web with adhesive - film face






32. Serves as writable or non-writable data storage






33. Neighboring readers interrogate a tag simultaneously (can be easily solved because they can detect this and communicate to each other)






34. Uses a serial communication link to communicate with an application - Reader is physically connected to a computer's serial port using an RS-232 or RS-485 serial connection. Both of these connections have an upper limit on the cable length that can b






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






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






38. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)






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






40. Broadcasts the reader transmitter's RF signal into its surroundings and receives tag responses on the reader's behalf. Therefore - proper positioning of these (NOT THE READERS) is essential for good read accuracy






41. Brains of the RFID tag






42. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation






43. Dead zones that surround protrusions in antenna footprint






44. Reader communicates to a tag through reader's antennas - a separate device that is physically attached to a reader - at one of its antenna ports - by means of cable. Called this because it creates an electromagnetic field to couple with the tag.






45. Ranges upward from 1 GHz - Typically operates at either 2.45 GHz or 5.8 GHz - Can use both semi-active and passive tags - Has FASTEST data-transfer rate between tag and reader - Performs poorly in presence of metals and liquids - Antenna of a passive






46. Mount the tiny chip to a strap - Greater handling ability - Possibility to use very small chips - Possibility of higher volume production - Fluidic Self Assembly






47. Die-cut web adhesive - paper face






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






49. controls the internal functions under the command of the processor






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