💡Demo Part
The demo part is mainly used to demonstrate the use of RFID device, functional testing, etc.
Demo Part
MainActivity
Quick start
After entering the App, click the "三" icon in the upper left corner and select "Distance test mode" or "S1 Hige speed Inv".
Click "Start" to start inventorying UHF RFID tags.
Click "Stop" to end the inventory.
Note:
In high speed mode, the power consumption of the device is very high, it is best not to use it for a long time.
In the quick inventory mode, the settings cannot be entered, and you need to exit the quick mode first.
Introduction
Main interface function:
Display of inventory results.
Displays the tag information currently counted, the default is the EPC data, the number of counts, and the signal strength of the last tag counted.
The tag results need to display EPC+TID, EPC+USER and other data at the same time, and the type needs to be added in the settings.
Every time the inventory is re-counted, the data in the list will be cleared.。
After the inventory is finished, you can select the tag that needs to be operated in the list, and perform settings such as read/write.
During the inventory process, clicking on the tag will not enter the read/write interface.
Quick inventory mode setting
Power Saving: Automatically set the module's low power consumption mode to increase the duration of UHF use.
Inventory distance: Automatically set the most suitable parameters for reading distance test.
S0 High speed inventory: For small quantity RFID tags.
S1 High speed inventory: For large quantity RFID tags.
Note:
In high speed mode, the power consumption of the device is very high, it is best not to use it for a long time.
In the quick inventory mode, the settings cannot be entered, and you need to exit the quick mode first.
UHF module settings
Regulation
CN2: 840-845
CN: 920-925
US: 902-928
EU: 865-868
Note：
If the tag is EU standard and uses the US frequency band, it will not be read or the distance will be very close.
Different frequencies require different antennas. Modules also need to be replaced.
Session mode
Target:
The EPC GEN 2 compliant tag has two states for each session represented by Session Inventory Flags, 'A' and 'B'.
The tags will always power up into the 'A' state for each session. The reader controls when the tag will go from 'A' to 'B' state. Although the reader can control when the tag is moved back to the 'A' state, it is commonly controlled by what we call the tag's persistence.
S0: For small quantity RFID tags,(When the tag leaves the reading radiation range, the tag in flag B automatically changes to flag A. If it remains within the radiation range, the tag remains in state B.)
S1: For large quantity RFID tags,（When the tag is inventoried, it will change to flag B. The timer starts at this time and will automatically change to state A after 500ms-5S.）
S2: use with Gen2 Command.For large quantity RFID tags.（The tag leaves the reading range and starts timing. After 2 seconds, it returns to flag A.）
S3: use with Gen2 Command.For large quantity RFID tags.（The tag leaves the reading range and starts timing. After 2 seconds, it returns to flag A.）
Output power
5-30 db
Note:
For R2000/E710 modules, the maximum power is 33. Setting it to 30 is actually 33db.
Work time & Rest time
The RFID reader is not always working during the inventory, and each inventory has a working time and restart time.
e.g.
Default params: Work time: 50ms/Rest time 0ms;
Comparison params: Work time: 2000ms/Rest time 1000ms;
Inventory additional data
MemBank
EPC (default)
EPC+TID
EPC+USER
Reserved
Start address: Additional data (TID/USER/Reserved) sectors to read.
Length of additional data (TID/USER/Reserved) to read.
Apply to fast mode: Whether to attach data in fast mode.
Smart mode: Whether to attach data in smart mode.
Filter: Fill in the EPC, and the inventory will show only matching tags.
Filter address: Default 32.
Stop inventory timer
Automatically stop inventory after x seconds, commonly used for 10S inventory test.
Set the time.
Set to stop after 10 seconds of inventory.↓
Algorithm settings(Gen2 Settings)
Q value: The recommendation for normal use is Auto/Dynamic,For manual setting, it is recommended to clearly communicate the on-site situation and the number of tags, and reply with the recommended value of Q based on the feedback.
Target:
A:
Reads ‘A’ tags one at a time and moves them into the ‘B’ state.
The amount of time that the tags stay in the 'B' state is based on the rules associated with the session configured. Refer to the "Putting It All Together" section below for further details on session configuration.
B：Reads ‘B’ tags one at a time and moves them into the ‘A’ state
A-B：
Reads ‘A’ tags one at a time and moves them into the ‘B’ state.
In this search mode, the session has no influence as the Impinj reader will immediately 'push' tags back into the 'A' state.
B-A：
Reads all ‘A’ tags one at a time and moves them into the ‘B’ state.
Moves all B tags at once into the A state with a single GEN 2 Select command. The Select command communicates with all the tags in the field of the view.
TagFocus:
This search mode is exactly the same as Single Target, except provides the advantage of Sessions 2 and 3, in that the tag will remain quiet while in the read field once inventoried.
Usage: This allows other tags that might be “quieter” (not reflecting as much power) to be read. It also provides the advantage of Session 1 in that it will revert the tag almost immediately back to the ‘A’ state and be available for a reader query upon leaving the read field.
UHF Background Services
Export inventory data
Export tag data in current table to device storage.
Format is .xls
Contents are EPC data, TID or USER data (empty if no additional data)
Locate tag
Find tags by sound.
Click: Select the tag EPC that has been inventoried to search.
Long press: Enter the EPC for which the tag needs to be found.
According to the rhythm of the prompt sound and different prompt sounds, the closer to the tag, the more urgent the prompt sound.
It is recommended to watch the video below with the sound turned on.↓
Look for tags that will glow.
Continuously read the Reserved area of the tag, if the tag is sensed, the LED on the tag will blink.
Note：LED tags are currently only used for "kiloway" tags, other similar tags may need to adjust the read sector.
Module Information
UHF module chip used by the module.
R2000
E710
E310
QM100
etc
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