Source: Rapid ERP Implementation
Creating innovative customer experiences and capturing insightful shopper intelligence with RAIN RFID fitting room mirrors from Impinj and Oak Labs
Most fixed RFID readers have a GPIO port, or General Purpose Input / Output port, that enables additional functionality, such as visual or audio signals. Unlike other ports on RFID readers, the GPIO port has only two settings – high (i.e. “on”), or nothing. The high signal acts as a trigger for GPO devices because [….] Read More
The lab test is done for testing the sensitivity of RSSI on RFID tag movement.
- Reader: 5M RFID UHF reader Circular-polarized Antenna
- Tag: Standard credit card size RFID UHF card
Setup: Place RFID UHF reader horizontally on table, tag place right on top of the reader, start the demo software developed.
The original RSSI for the RFID UHF tag is 64.
Keep the RFID UHF tag stationary without movement, the RSSI still has small fluctuation between 65 and 64, but not much.
By moving the tag horizontally on surface of RFID UHF reader for 5cm, the RSSI value change by about 10 (from 64 to 74), but this is not a constant relationship. It may be affected by environment.
By lifting the tag from surface of RFID UHF reader (that is increasing the distance between reader and tag), the RSSI value also changed.
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