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Test your basic knowledge |
RFID Technology
Start Test
Study First
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. Optical and RFID hybrid
Multipath
Receiver
Memory
Smart Label
2. Image "burned" into photopolymer layer. All copper removed except where image was burned. Copper antenna goes through additional processes to protect from oxidation
Microprocessor
Foil Stamping
Circular Polarized Antenna
Copper Etching
3. Measurement of power for radiation of antenna used in US
Equivalent Isotropic Radiated Power (EIRP)
Commissioning The Tag
Inductive Coupling
Linear Polarized Reader Antenna
4. Measurement of power for radiation of antenna used in Europe
Autonomous Mode
Dry Inlay
Interactive Mode
Effective Radiated Power (ERP)
5. Silicon chip is picked up by robotized arm using precise vacuum nozzle. Chip is flipped so that its electrical contacts point face down. Chip is aligned with the antenna and pressure and heat is applied.
Types of Tag Frequencies
Circular Polarized Antenna
Actuator
Flip-chip (Chip-to-Tag)
6. This type of antenna is largely unaffected by tag orientation - Preferred in system that uses high UHF or microwave frequencies in an operating environment where there is a high degree of RF reflectance (due to presence of metals and so forth)
Circular Polarized Antenna
Equivalent Isotropic Radiated Power (EIRP)
Circular Polarized Reader Antenna
Persist Time
7. 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
Antenna/Inductor
Power Source
Microprocessor
Polarization
8. 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
RFID Printer
Read range
RFID SyCommunication methods
Microwave Frequency
9. Can reduce power by placing this device in the transmission line. As a result - the antennas signal is reduced and the read range diminished. Proves useful in situations where the read zone needs to be constrained as a part of system requirements so
Main Components of RFID Tag
Adaptive Binary Tree Anti-Collision
Duty Cycle
Attenuator
10. To disassociate the tag from a tagged object and optionally destroy it
Serial Reader
Coupling Element
Decommissioning The Tag
Tag Standards
11. Generation= Timeline of Introduction - Gen 1 & 2 - Gen 2 protocol backward compatible
Sensor
Memory
Smart Label
Tag Generations
12. 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.
Coupling Element
Destructive Interference
Creating A Tag
Polarization
13. Neighboring readers interrogate a tag simultaneously (can be easily solved because they can detect this and communicate to each other)
Reader Collision
Slotted ALOHA
Linear Polarized Reader Antenna
Copper Etching
14. Every time a tag is read - it is saved to this
Slotted ALOHA
Tag List
RFID SyCommunication methods
Memory
15. Inductive coupling and passive backscatter (capacitive coupling)
Adaptive Binary Tree Anti-Collision
Read range
RFID SyCommunication methods
Linear Polarized Antenna
16. IC Chip - Antenna/Inductor - Power Source
Main Components of RFID Tag
Sensor
Linear Polarized Reader Antenna
Interactive Mode
17. Standards = EPC global & ISO 18000 - Different Organizations
Reader Antennas
Tag Standards
Transmitter
Low Frequency (LF)
18. 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
Reader Antenna
Tag
Linear Polarized Reader Antenna
Wet Inlay
19. Tags collide completely or not at all (Theoretically proven maximum utilization= 36.8%)
ALOHA
Antenna/Inductor
Slotted ALOHA
Processor
20. 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
Sensor
Circular Polarized Antenna
Reader Antennas
Power Source
21. Fixed to meet FCC and other regulatory requirements. The signal can be decreased or attenuated to limit the tag read window or aim it only at tags you want to read
Power/Attenuation
Polarization
Circular Polarized Antenna
Smart Label
22. The 3D energy field generated by the antenna (also called reading area)
Pattern(Footprint)
Screen Printing
ALOHA
Antenna/Inductor
23. When two waves (out of phase) impose on each other and the original signal is cancelled. Nulls are created s a result
Power Source
Antenna/Inductor
Tag Collision
Destructive Interference
24. A mechanical device for controlling or moving objects - A programmable logic controller (PLC) - robot arm - mechanical arm - etc.
Tag class
Characteristics Of Antennas That Contribute To Tag Readability
Actuator
Tag
25. '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
Memory
RFID Reader
Wet Inlay
Polarization
26. 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
Processor
Reader Antenna
RFID Printer
Polarization
27. controls the internal functions under the command of the processor
Pattern(Footprint)
Control Circuitry
Tag Antenna Construction
Polarization
28. These are categorized into Aloha based protocols and tree based
Reader Collision
Polarization
Tag Anti-Collision Protocols
Pattern(Footprint)
29. 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
RFID Printer
Interactive Mode
Circular Polarized Antenna
RFID Reader
30. Responsible for implementing the reader protocol to communicate with compatible tags
Microprocessor
Destructive Interference
Transmitter
Commissioning The Tag
31. Serves as writable or non-writable data storage
Characteristics Of Antennas That Contribute To Tag Readability
Memory
Circular Polarized Reader Antenna
Serial Reader
32. The orientation of the transmitted electromagnetic field or the direction of oscillation of electromagnetically emitted waves
Polarization
Processor
Control Circuitry
Antenna/Inductor
33. 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
Annunciator
UHF
Smart Label
Types of Tag Frequencies
34. Used for storing data such as the reader configuration parameters and a list of tag reads
Persist Time
RFID SyCommunication methods
Creating A Tag
Memory
35. Receives signal from reader and radiates a response back to the reader - LF or HF: induction coil - UHF or Microwave Frequency: printed antennas
Main Components of RFID Tag
Coupling Element
Pattern(Footprint)
Antenna/Inductor
36. Also called an 'interrogator' - A device that can read from and write data to compatible RFID tags - Also doubles up as a writer
RFID Reader
Wet Inlay
Strap-to-Tag
Main Components of RFID Tag
37. The act of writing the tag data by reader
Creating A Tag
Actuator
Equivalent Isotropic Radiated Power (EIRP)
Strap-to-Tag
38. Inductive coupling and passive backscatter (capacitive coupling)
Passive Communication Methods
Slotted ALOHA
Power Source
Actuator
39. 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%)
Autonomous Mode
ALOHA
Destructive Interference
Stationary Reader
40. 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
Stationary Reader
Slotted ALOHA
Linear Polarized Reader Antenna
PLC
41. changes signal received from reader to include data that will be transmitted back to the reader
Polarization
Strap-to-Tag
Serial Reader
Modulation Circuitry
42. 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
Reader Antennas
UHF
Tag List
Passive Backscatter (Capacitive Coupling)
43. Pattern(Footprint) - Power/Attenuation - and Polarization
Characteristics Of Antennas That Contribute To Tag Readability
RFID Reader
Low Frequency (LF)
Memory
44. Reader that can operate in different frequencies or can use different tag-to-reader communication protocols (generally stationary)
Agile Reader
Adaptive Binary Tree Anti-Collision
ALOHA
Smart Label
45. 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
ALOHA
Foil Stamping
Adaptive Binary Tree Anti-Collision
Strap-to-Tag
46. Divides time into discrete time intervals (slots) . A packet can only be transmitted at the beginning of a slot - reduces the collision duration.
Read range
Screen Printing
Creating A Tag
Slotted ALOHA
47. Interprets the signal received from reader and controls memory storage and retrieval
Polarization
Processor
Transmitter
Inductive Coupling
48. Brains of the RFID tag
Antenna/Inductor
Slotted ALOHA
Integrated Circuit Chips
Linear Polarized Antenna
49. Reader transmits a continuous-wave RF signal into the reading environment
Passive Backscatter (Capacitive Coupling)
Creating A Tag
Circular Polarized Reader Antenna
Types of tags
50. Continuous web - no adhesive
Constructive Interference
Equivalent Isotropic Radiated Power (EIRP)
Dry Inlay
Actuator