Transcript Korea University Ubiquitous LAB.

Chapter 9. Installation
Ph.D Chang-Duk Jung
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Installing readers and antennas
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Mount the reader
Mount and connect the antennas to the reader
Turn on the reader
Test the interrogation zone for RF path loss
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Hardware grounding considerations
• An effective electrical ground connection
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Minimizes the possibility of interference
Reduces the risk of equipment damage
Eliminates electrostatic buildup
Helps protect personnel
• The best grounding option available when installing
the reader is earthing
• A ground loop occurs when there is more than one
ground connection path between two pieces of
equipment
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Electrostatic discharge (ESD)
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ESD protection
• You can protect an RFID chip from ESD by
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Providing warning labels
Using ESD-protective packaging materials
Reducing static charge generation
By dissipating and neutralizing ESD
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Power sourcing considerations
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Battery
UPS
Power distribution
Power-over-Ethernet
Considerations for power supply installation
– Ensure that the supply voltage of the reader is within
specification
– Use single point grounding
– Use recommended cable with overall shielding
– Run the cable in an individual conduit
– Organize all the cables and permanently mount them with
wire ties and mounting brackets
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Installation of electrical cables
• Consideration for cable installation
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Use cables that are labeled by the manufacturer
Avoid exposure to electromagnetic energy
Use labels to identify cabling parts
Ensure orderly layout of cables
Apply a protective sealing where the cable has been cut
Place earth bars in front of panels and junction boxes
Connect the field equipment to the PE system through the
cable
• Junction boxes
• Wireless network installation
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Testing installed equipment
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Unit test
Application integration test
Application integration load test
Production staging test
Production staging load test
Capacity assessment
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Implementation challenges
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Data warehousing
System costs
Wireless reliability and consistency
Electromagnetic interference
Skill challenges
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RFID implementation checklist
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RF site survey
Installation and tuning
Reader synchronization
Cable management
- Secure and protect the cables
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Tag design and placement
Device management
- Maintain and manage the RFID devices
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Data management
- Determine the type and size of data generated to ensure
that the system can handle it
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Hardware safety considerations
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Environment
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Humidity, condensation, temperature changes
Safety
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Enclosures protect equipment from damage and
safeguard the people who work nearby
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RFID system on a conveyor
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RFID system on a conveyor (con’t)
• Considerations for installing conveyor systems
– Control the movement of the conveyor that is based on tag
reads
– Configure antennas to cover all locations
– Provide sufficient power to the reader
– Use read-only tags
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RFID system on a dock door
A doorway portal
A dock door setup
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RFID system on a dock door (con’t)
• Dock door requirements
– A high-powered UHF system
– Sufficient power to the antennas in the interrogation zone
– A reader set to constantly look for tags
• Setting up the dock door portal
– Decide on the coverage area and the number of antennas to
use
– Determine the location for antenna placement
– Install the antennas
– Perform a path loss contour mapping
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RFID system on a shelf
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RFID system on a shelf (con’t)
• Considerations for installing portal systems
– Portals need careful synchronization with other RFID readers
or RF devices
– Readers need to be configured to read as many tags as
possible
– Portals need to be integrated into the network
– Reader antennas need to be properly placed to avoid
interference
– Readers need to be protected from environmental conditions
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Installing mobile readers
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Installing mobile reader (con’t)
• Considerations for installing mobile readers
– Power surges can damage the reader
– Improper cabling of the data terminal on the forklift can give
erroneous data
– RFID system should be able to withstand varying degrees of
temperature
– Wireless coverage of the entire facility
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Unit summary
• Explained hardware installation and safety
considerations in the RFID system
• Explained the installation of an RFID system in
various enterprise applications
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Review questions
• How would you protect RFID devices from ESD?
• Which of these implementation challenges can be
avoided by using a spectrum analyzer and a site
survey?
A. Wireless reliability and consistency
B. Cable management
C. Electromagnetic interference
D. Data warehousing
• What steps do you need to perform when installing
an RFID system?
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