RAIN at the - AIMGlobal
Transcript of RAIN at the - AIMGlobal
RAIN at the jewelry counter
Kevin Berisso, Ph.D.
Automatic Identification Lab
Dec 10, 20202:50pm
Education
Tech TransferAdvocation
Zoom GS1 US
Kevin Berisso
Jonathan Gregory
Custom app
+
192.168.1.22
Alien TOT command
• Turn on Threshold(minimum power required to get a response from the tag)
•Units: dBm
•Range: 50-315 (-1 if tag can’t be read)
•Multiple read attempts recommended (reading is frequency dependent)
Alien TOT command
• Turn on Threshold(minimum power required to get a response from the tag)
•Units: dBm
•Range: 50-315 (-1 if tag can’t be read)
•Multiple read attempts recommended (reading is frequency dependent)
192.168.1.22
0.3” spacer
Antenna Setup
Magnets
•Neodymium
•3/8” O.D.
•0.06” thick
0 13 µT
1 117 µT
2 259 µT
3 400 µT
4 526 µT
5 625 µT
6v 217 µT
6h 585 µT
Qty Strength
Test Protocol
• Tags• 5 tag types• 5 tags each
•Magnets/strength• No magnets, 1-5,
3 magnet assembly,2 positions
0.47” (12mm)
Test Protocol
• Tags• 5 tag types• 5 tags each
•Magnets/strength• No magnets, 1-5,
3 magnet assembly,2 positions
0.47” (12mm)
Intentional Test Protocol Limitations
Being tested• Impacts of static
magnetic field
• NF RAIN RFID performance
• NF targeted tags (small form factor)
Not being tested• Tag to tag performance
• Electronically generated magnetic fields (motors)
• All tag formats
Results (for all tags)Magnets Average Max Min Std Dev
0 159.0 304 80 46.421 159.3 272 75 40.202 159.3 278 75 41.433 159.5 277 73 40.144 159.2 263 76 38.525 160.8 290 80 41.77
6h 229.8 292 133 38.856v 171.1 315 83 46.79
Results – By Magnetic Configuration
50
100
150
200
250
0 1 2 3 4 5 6h 6v
dB
m
Magnets
Results – By Tag
100
120
140
160
180
200
220
240
260
280
0 1 2 3 4 5 6h 6v
dB
m
Magnet Configuration
a
b
c
d
e
Tag
Typ
e
Conclusions
• Failed to show a significant difference
•Within tag variations were larger than expected
50
100
150
200
250
300
1 2 3 4 5
TOT
(dB
m)
Tag – no magnets
a
b
c
d
e
Surprises
Tag
Typ
e• Slight drop in TOT for 1-5 magnets on some tags
•No impact of increased number of magnets
100
120
140
160
180
200
220
240
260
280
0 1 2 3 4 5 6h 6v
dB
m
Magnet Configuration
a
b
c
d
e
Thank you for Attending
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