Rahul, You can also set session to 1 and ModeIndex to 2 to get fast rate.
<llrp:C1G2RFControl> <llrp:ModeIndex>2</llrp:ModeIndex> <llrp:Tari>0</llrp:Tari> </llrp:C1G2RFControl> <llrp:C1G2SingulationControl> <llrp:Session>1</llrp:Session> Xiaoyong -----Original Message----- From: Rahul Bhattacharyya [mailto:[email protected]] Sent: Friday, December 18, 2009 12:39 PM To: [email protected] Subject: [ltk-d] Query regarding maximizing reads per second Hi All, For one of our experiments, we have been trying to maximize the number of reads per second from a single RFID tag using an Impinj Speedway reader. We contacted Impinj Support and they sent us an ROSPEC that helped us get the read rate up to about 1 read per second per tag (if there are more tags in range, we’ll get more reports per second). Has anyone in the community managed to get an even higher sampling rate (=higher read rates) and could share their ADD_ROSPEC message? The ADD_ROSPEC we're currently using is posted below for reference : Thanks Rahul *ADD_ROSPEC Message:* <?xml version=”1.0″ encoding=”UTF-8″?> <llrp:ADD_ROSPEC xmlns:llrp=”http://www.llrp.org/ltk/schema/core/encoding/xml/1.0″ Version=”1″ MessageID=”4″> <llrp:ROSpec> <llrp:ROSpecID>1</llrp:ROSpecID> <llrp:Priority>0</llrp:Priority> <llrp:CurrentState>Disabled</llrp:CurrentState> <llrp:ROBoundarySpec> <llrp:ROSpecStartTrigger> <llrp:ROSpecStartTriggerType>Immediate</llrp:ROSpecStartTriggerType> </llrp:ROSpecStartTrigger> <llrp:ROSpecStopTrigger> <llrp:ROSpecStopTriggerType>Null</llrp:ROSpecStopTriggerType> <llrp:DurationTriggerValue>0</llrp:DurationTriggerValue> </llrp:ROSpecStopTrigger> </llrp:ROBoundarySpec> <llrp:AISpec> <llrp:AntennaIDs>0</llrp:AntennaIDs> <llrp:AISpecStopTrigger> <llrp:AISpecStopTriggerType>Null</llrp:AISpecStopTriggerType> <llrp:DurationTrigger>0</llrp:DurationTrigger> </llrp:AISpecStopTrigger> <llrp:InventoryParameterSpec> <llrp:InventoryParameterSpecID>9</llrp:InventoryParameterSpecID> <llrp:ProtocolID>EPCGlobalClass1Gen2</llrp:ProtocolID> <llrp:AntennaConfiguration> <llrp:AntennaID>0</llrp:AntennaID> <llrp:RFTransmitter> <llrp:HopTableID>1</llrp:HopTableID> <llrp:ChannelIndex>0</llrp:ChannelIndex> <llrp:TransmitPower>71</llrp:TransmitPower> </llrp:RFTransmitter> <llrp:C1G2InventoryCommand> <llrp:TagInventoryStateAware>0</llrp:TagInventoryStateAware> <llrp:C1G2RFControl> <llrp:ModeIndex>0</llrp:ModeIndex> <llrp:Tari>0</llrp:Tari> </llrp:C1G2RFControl> <llrp:C1G2SingulationControl> <llrp:Session>2</llrp:Session> <llrp:TagPopulation>8</llrp:TagPopulation> <llrp:TagTransitTime>0</llrp:TagTransitTime> </llrp:C1G2SingulationControl> </llrp:C1G2InventoryCommand> </llrp:AntennaConfiguration> </llrp:InventoryParameterSpec> </llrp:AISpec> <llrp:ROReportSpec> <llrp:ROReportTrigger>Upon_N_Tags_Or_End_Of_AISpec</llrp:ROReportTrigger> <llrp:N>1</llrp:N> <llrp:TagReportContentSelector> <llrp:EnableROSpecID>0</llrp:EnableROSpecID> <llrp:EnableSpecIndex>0</llrp:EnableSpecIndex> <llrp:EnableInventoryParameterSpecID>0</llrp:EnableInventoryParameterSpecID> <llrp:EnableAntennaID>1</llrp:EnableAntennaID> <llrp:EnableChannelIndex>1</llrp:EnableChannelIndex> <llrp:EnablePeakRSSI>1</llrp:EnablePeakRSSI> <llrp:EnableFirstSeenTimestamp>1</llrp:EnableFirstSeenTimestamp> <llrp:EnableLastSeenTimestamp>1</llrp:EnableLastSeenTimestamp> <llrp:EnableTagSeenCount>1</llrp:EnableTagSeenCount> <llrp:EnableAccessSpecID>0</llrp:EnableAccessSpecID> <llrp:C1G2EPCMemorySelector> <llrp:EnableCRC>1</llrp:EnableCRC> <llrp:EnablePCBits>1</llrp:EnablePCBits> </llrp:C1G2EPCMemorySelector> </llrp:TagReportContentSelector> </llrp:ROReportSpec> </llrp:ROSpec> </llrp:ADD_ROSPEC> ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ llrp-toolkit-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/llrp-toolkit-devel ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ llrp-toolkit-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/llrp-toolkit-devel
