Class Impinj

The Impinj class comprises of the custom Access operations meant for Impinj tags.Currently the following operations are supported - QTRead and QTWrite which read and write the Control Data for Impinj QT Tags. QT tags offer special functionalities like Private/Public memory map and read range reduction which can be enabled/disabled by writing the QT Control word.However,currently read range reduction is not supported in the Reader software.

Inheritance

System.Object

Impinj

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: rfid.api

Assembly: rfid.netcore.dll

Syntax

public class Impinj

Constructors

Impinj()

constructor

Declaration

public Impinj()

Methods

QTReadEvent(Impinj.QTReadAccessParams, AccessFilter, AntennaInfo)

This method is used to read QT Control data from the QT tags that match the AccessFilter criteria if specified. Tags will be reported as notifications if the application has registered for Events.ReadNotify event. Else the Tags will be fetched using GetReadTags(s) methods. Completion of Access operation will be reported as Events.StatusNotify event of type ACCESS_STOP_EVENT.

Declaration

public void QTReadEvent(Impinj.QTReadAccessParams qtReadAccessParams, AccessFilter accessFilter, AntennaInfo antennaInfo)

Parameters

Type	Name	Description
Impinj.QTReadAccessParams	qtReadAccessParams	Parameters required for the QTRead operation.Contains AccessPassword
AccessFilter	accessFilter	Access Filter which determines the Tags on which the Access operation is to be performed. If this is null, operation will be perfomed without any access filters.
AntennaInfo	antennaInfo	Antennas on which the current operation is to be performed. If this is null, operation will be performed on all Antennas.

QTReadWait(String, Impinj.QTReadAccessParams, AntennaInfo)

Performs QTRead operation on an Impinj QT tag.The Control Data is returned in TagData.AccessOperationResult.

Declaration

public TagData QTReadWait(string tagID, Impinj.QTReadAccessParams qtReadAccessParams, AntennaInfo antennaInfo)

Parameters

Type	Name	Description
System.String	tagID	EPC-ID of the Tag on which the Read operation is to be performed.
Impinj.QTReadAccessParams	qtReadAccessParams	Parameters required for the QTRead operation.Contains the tag's access Password
AntennaInfo	antennaInfo	Antennas on which the current operation is to be performed. If this is null, operation will be performed on all Antennas.

Returns

Type	Description
TagData	TagData corresponding to the Tag on which the QTRead operation was performed. TagData.AccessOperationReuslt.QTControlData contains the status of QT Control flags- QTShortRange and QTPublicMemoryMap

QTWriteEvent(Impinj.QTWriteAccessParams, AccessFilter, AntennaInfo)

This method is used to write QT Control data on all the QT tags that match the AccessFilter criteria if specified.It can enable/disable public-private memory map and short range modes of QT tags. Additionally,these control flags may be applied on volatile/non volatile memories of the tag by setting/resetting the persist flag. Tags will be reported as notifications if the application has registered for Events.ReadNotify event. Else the Tags will be fetched using GetReadTags(s) methods. Completion of Access operation will be reported as Events.StatusNotify event of type ACCESS_STOP_EVENT.

Declaration

public void QTWriteEvent(Impinj.QTWriteAccessParams qtWriteAccessParams, AccessFilter accessFilter, AntennaInfo antennaInfo)

Parameters

Type	Name	Description
Impinj.QTWriteAccessParams	qtWriteAccessParams	Parameters required for the QTWrite operation.Contains the tag's access Password and Control flags-persist,public memory map and short range
AccessFilter	accessFilter	Access Filter which determines the Tags on which the Access operation is to be performed. If this is null, operation will be perfomed without any access filters.
AntennaInfo	antennaInfo	Antennas on which the current operation is to be performed. If this is null, operation will be performed on all Antennas.

QTWriteWait(String, Impinj.QTWriteAccessParams, AntennaInfo)

Performs QTWrite operation on an Impinj QT tag.It can enable/disable public memory map and Short range modes of a QT tag.However,short range mode is currently not supported.Besides,persist flag applies the above settings to either volatile/non-volatile memories.

Declaration

public void QTWriteWait(string tagID, Impinj.QTWriteAccessParams qtWriteAccessParams, AntennaInfo antennaInfo)

Parameters

Type	Name	Description
System.String	tagID	EPC-ID of the Tag on which the Read operation is to be performed.
Impinj.QTWriteAccessParams	qtWriteAccessParams	Parameters required for the QTWrite operation.Contains the tag's access Password and Control flags-persist,public memory map and short range
AntennaInfo	antennaInfo	Antennas on which the current operation is to be performed. If this is null, operation will be performed on all Antennas.