def Connect(self):
# Create the reader connection.
self.connector = LLRPConnector()
# Connect to the reader.
try:
response = self.connector.connect(self.host)
except socket.timeout:
self.connector.disconnect()
raise
# Reset to factory defaults.
response = self.connector.transact(
SET_READER_CONFIG_Message(ResetToFactoryDefault=True))
assert response.success(
), 'SET_READER_CONFIG ResetToFactorDefault fails\n{}'.format(response)
# Change receiver sensitivity (if specified). This value is RFID reader dependent.
receiverSensitivityParameter = []
if self.receiverSensitivity is not None:
receiverSensitivityParameter.append(
RFReceiver_Parameter(
ReceiverSensitivity=self.receiverSensitivity))
# Change transmit power (if specified). This value is RFID reader dependent.
transmitPowerParameter = []
if self.transmitPower is not None:
transmitPowerParameter.append(
RFTransmitter_Parameter(
HopTableID=1,
ChannelIndex=0,
TransmitPower=self.transmitPower,
))
message = SET_READER_CONFIG_Message(Parameters=[
AntennaConfiguration_Parameter(
AntennaID=0,
Parameters=receiverSensitivityParameter +
transmitPowerParameter + [
C1G2InventoryCommand_Parameter(Parameters=[
C1G2SingulationControl_Parameter(
Session=0,
TagPopulation=100,
TagTransitTime=3000,
),
]),
]),
])
response = self.connector.transact(message)
assert response.success(
), 'SET_READER_CONFIG Configuration fails:\n{}'.format(response)
def Connect( self ): # Create the reader connection. self.connector = LLRPConnector() # Connect to the reader. try: response = self.connector.connect( self.host ) except socket.timeout: raise # Reset to factory defaults. response = self.connector.transact( SET_READER_CONFIG_Message(ResetToFactoryDefault = True) ) assert response.success(), 'SET_READER_CONFIG ResetToFactorDefault fails' # Reduce tag transit time to improve write response. message = SET_READER_CONFIG_Message(Parameters = [ AntennaConfiguration_Parameter( AntennaID = 0, Parameters = [ C1G2InventoryCommand_Parameter( Parameters = [ C1G2SingulationControl_Parameter( Session = 0, TagPopulation = 100, TagTransitTime = 3000, ), ] ), ] ), ] ) response = self.connector.transact( message ) assert response.success(), 'SET_READER_CONFIG Configuration fails' + response
def Connect( self ):
# Create the reader connection.
self.connector = LLRPConnector()
# Connect to the reader.
try:
response = self.connector.connect( self.host )
except socket.timeout:
self.connector.disconnect()
raise
# Reset to factory defaults.
response = self.connector.transact( SET_READER_CONFIG_Message(ResetToFactoryDefault = True) )
assert response.success(), 'SET_READER_CONFIG ResetToFactorDefault fails\n{}'.format(response)
# Change receiver sensitivity (if specified). This value is RFID reader dependent.
receiverSensitivityParameter = []
if self.receiverSensitivity is not None:
receiverSensitivityParameter.append(
RFReceiver_Parameter(
ReceiverSensitivity = self.receiverSensitivity
)
)
# Change transmit power (if specified). This value is RFID reader dependent.
transmitPowerParameter = []
if self.transmitPower is not None:
transmitPowerParameter.append(
RFTransmitter_Parameter(
HopTableID = 1,
ChannelIndex = 0,
TransmitPower = self.transmitPower,
)
)
message = SET_READER_CONFIG_Message( Parameters = [
AntennaConfiguration_Parameter( AntennaID = 0, Parameters =
receiverSensitivityParameter + transmitPowerParameter + [
C1G2InventoryCommand_Parameter( Parameters = [
C1G2SingulationControl_Parameter(
Session = 0,
TagPopulation = 100,
TagTransitTime = 3000,
),
] ),
] ),
] )
response = self.connector.transact( message )
assert response.success(), 'SET_READER_CONFIG Configuration fails:\n{}'.format(response)
class TagInventory(object):
roSpecID = 123 # Arbitrary roSpecID.
inventoryParameterSpecID = 1234 # Arbitrary inventory parameter spec id.
readWaitMilliseconds = 100
def __init__(self,
host='192.168.10.102',
defaultAntennas=None,
transmitPower=None,
receiverSensitivity=None):
self.host = host
self.connector = None
self.resetTagInventory()
self.defaultAntennas = defaultAntennas
self.transmitPower = transmitPower
self.receiverSensitivity = receiverSensitivity
def resetTagInventory(self):
self.tagInventory = set()
self.otherMessages = []
def AccessReportHandler(self, connector, accessReport):
for tag in accessReport.getTagData():
tagID = HexFormatToStr(tag['EPC'])
discoveryTime = self.connector.tagTimeToComputerTime(
tag['Timestamp'])
self.tagInventory.add(tagID)
def DefaultHandler(self, connector, message):
self.otherMessages.append(message)
def Connect(self):
# Create the reader connection.
self.connector = LLRPConnector()
# Connect to the reader.
try:
response = self.connector.connect(self.host)
except socket.timeout:
self.connector.disconnect()
raise
# Reset to factory defaults.
response = self.connector.transact(
SET_READER_CONFIG_Message(ResetToFactoryDefault=True))
assert response.success(
), 'SET_READER_CONFIG ResetToFactorDefault fails\n{}'.format(response)
# Change receiver sensitivity (if specified). This value is RFID reader dependent.
receiverSensitivityParameter = []
if self.receiverSensitivity is not None:
receiverSensitivityParameter.append(
RFReceiver_Parameter(
ReceiverSensitivity=self.receiverSensitivity))
# Change transmit power (if specified). This value is RFID reader dependent.
transmitPowerParameter = []
if self.transmitPower is not None:
transmitPowerParameter.append(
RFTransmitter_Parameter(
HopTableID=1,
ChannelIndex=0,
TransmitPower=self.transmitPower,
))
message = SET_READER_CONFIG_Message(Parameters=[
AntennaConfiguration_Parameter(
AntennaID=0,
Parameters=receiverSensitivityParameter +
transmitPowerParameter + [
C1G2InventoryCommand_Parameter(Parameters=[
C1G2SingulationControl_Parameter(
Session=0,
TagPopulation=100,
TagTransitTime=3000,
),
]),
]),
])
response = self.connector.transact(message)
assert response.success(
), 'SET_READER_CONFIG Configuration fails:\n{}'.format(response)
def Disconnect(self):
response = self.connector.disconnect()
self.connector = None
def GetROSpec(self, antennas=None):
if antennas is not None:
if isinstance(antennas, (int, long)):
antennas = [antennas]
else:
antennas = [0]
# Create an rospec that reports reads.
return ADD_ROSPEC_Message(Parameters=[
ROSpec_Parameter(
ROSpecID=self.roSpecID,
CurrentState=ROSpecState.Disabled,
Parameters=[
ROBoundarySpec_Parameter( # Configure boundary spec (start and stop triggers for the reader).
Parameters=[
ROSpecStartTrigger_Parameter(
ROSpecStartTriggerType=ROSpecStartTriggerType.
Immediate),
ROSpecStopTrigger_Parameter(
ROSpecStopTriggerType=ROSpecStopTriggerType.
Null),
]), # ROBoundarySpec
AISpec_Parameter( # Antenna Inventory Spec (specifies which antennas and protocol to use)
AntennaIDs=antennas,
Parameters=[
AISpecStopTrigger_Parameter(
AISpecStopTriggerType=AISpecStopTriggerType.
Tag_Observation,
Parameters=[
TagObservationTrigger_Parameter(
TriggerType=TagObservationTriggerType.
N_Attempts_To_See_All_Tags_In_FOV_Or_Timeout,
NumberOfAttempts=10,
Timeout=self.readWaitMilliseconds,
),
]),
InventoryParameterSpec_Parameter(
InventoryParameterSpecID=self.
inventoryParameterSpecID,
ProtocolID=AirProtocols.EPCGlobalClass1Gen2,
),
]), # AISpec
ROReportSpec_Parameter( # Report spec (specifies how often and what to send from the reader)
ROReportTrigger=ROReportTriggerType.
Upon_N_Tags_Or_End_Of_ROSpec,
N=10000,
Parameters=[
TagReportContentSelector_Parameter(
EnableAntennaID=True,
EnableFirstSeenTimestamp=True,
),
]), # ROReportSpec
]), # ROSpec_Parameter
]) # ADD_ROSPEC_Message
def _prolog(self, antennas=None):
# Disable all the rospecs. This command may fail so we ignore the response.
response = self.connector.transact(DISABLE_ROSPEC_Message(ROSpecID=0))
# Delete our old rospec if it exists. This command might fail so we ignore the response.
response = self.connector.transact(
DELETE_ROSPEC_Message(ROSpecID=self.roSpecID))
# Add callbacks so we can record the tag reads and any other messages from the reader.
self.resetTagInventory()
self.connector.addHandler(RO_ACCESS_REPORT_Message,
self.AccessReportHandler)
self.connector.addHandler('default', self.DefaultHandler)
# Add and enable our ROSpec
response = self.connector.transact(self.GetROSpec(antennas))
assert response.success(), 'Add ROSpec Fails\n{}'.format(response)
def _execute(self):
response = self.connector.transact(
ENABLE_ROSPEC_Message(ROSpecID=self.roSpecID))
assert response.success(), 'Enable ROSpec Fails\n{}'.format(response)
# Wait for the reader to do its work.
time.sleep((1.5 * self.readWaitMilliseconds) / 1000.0)
response = self.connector.transact(
DISABLE_ROSPEC_Message(ROSpecID=self.roSpecID))
assert response.success(), 'Disable ROSpec Fails\n{}'.format(response)
def _epilog(self):
# Cleanup.
response = self.connector.transact(
DELETE_ROSPEC_Message(ROSpecID=self.roSpecID))
assert response.success(), 'Delete ROSpec Fails\n{}'.format(response)
self.connector.removeAllHandlers()
def GetTagInventory(self, antennas=None):
self._prolog(
antennas if antennas is not None else self.defaultAntennas)
self._execute()
self._epilog()
return self.tagInventory, self.otherMessages
class TagInventory( object ):
roSpecID = 123 # Arbitrary roSpecID.
inventoryParameterSpecID = 1234 # Arbitrary inventory parameter spec id.
readWaitMilliseconds = 100
def __init__( self, host='192.168.10.102', defaultAntennas=None, transmitPower=None, receiverSensitivity=None ):
self.host = host
self.connector = None
self.resetTagInventory()
self.defaultAntennas = defaultAntennas
self.transmitPower = transmitPower
self.receiverSensitivity = receiverSensitivity
def resetTagInventory( self ):
self.tagInventory = set()
self.tagDetail = []
self.otherMessages = []
def AccessReportHandler( self, connector, accessReport ):
for tag in accessReport.getTagData():
tag['Tag'] = HexFormatToStr( tag['EPC'] )
self.tagInventory.add( tag['Tag'] )
self.tagDetail.append( tag )
def DefaultHandler( self, connector, message ):
self.otherMessages.append( message )
def Connect( self ):
# Create the reader connection.
self.connector = LLRPConnector()
# Connect to the reader.
try:
response = self.connector.connect( self.host )
except socket.timeout:
self.connector.disconnect()
raise
# Reset to factory defaults.
response = self.connector.transact( SET_READER_CONFIG_Message(ResetToFactoryDefault = True) )
assert response.success(), 'SET_READER_CONFIG ResetToFactorDefault fails\n{}'.format(response)
# Change receiver sensitivity (if specified). This value is RFID reader dependent.
receiverSensitivityParameter = []
if self.receiverSensitivity is not None:
receiverSensitivityParameter.append(
RFReceiver_Parameter(
ReceiverSensitivity = self.receiverSensitivity
)
)
# Change transmit power (if specified). This value is RFID reader dependent.
transmitPowerParameter = []
if self.transmitPower is not None:
transmitPowerParameter.append(
RFTransmitter_Parameter(
HopTableID = 1,
ChannelIndex = 0,
TransmitPower = self.transmitPower,
)
)
message = SET_READER_CONFIG_Message( Parameters = [
AntennaConfiguration_Parameter( AntennaID = 0, Parameters =
receiverSensitivityParameter + transmitPowerParameter + [
C1G2InventoryCommand_Parameter( Parameters = [
C1G2SingulationControl_Parameter(
Session = 0,
TagPopulation = 100,
TagTransitTime = 3000,
),
] ),
] ),
] )
response = self.connector.transact( message )
assert response.success(), 'SET_READER_CONFIG Configuration fails:\n{}'.format(response)
def Disconnect( self ):
response = self.connector.disconnect()
self.connector = None
def GetROSpec( self, antennas = None ):
if antennas is not None:
if isinstance(antennas, (int, long)):
antennas = [antennas]
else:
antennas = [0]
# Create an rospec that reports reads.
return ADD_ROSPEC_Message( Parameters = [
ROSpec_Parameter(
ROSpecID = self.roSpecID,
CurrentState = ROSpecState.Disabled,
Parameters = [
ROBoundarySpec_Parameter( # Configure boundary spec (start and stop triggers for the reader).
Parameters = [
ROSpecStartTrigger_Parameter(ROSpecStartTriggerType = ROSpecStartTriggerType.Immediate),
ROSpecStopTrigger_Parameter(ROSpecStopTriggerType = ROSpecStopTriggerType.Null),
]
), # ROBoundarySpec
AISpec_Parameter( # Antenna Inventory Spec (specifies which antennas and protocol to use)
AntennaIDs = antennas,
Parameters = [
AISpecStopTrigger_Parameter(
AISpecStopTriggerType = AISpecStopTriggerType.Tag_Observation,
Parameters = [
TagObservationTrigger_Parameter(
TriggerType = TagObservationTriggerType.N_Attempts_To_See_All_Tags_In_FOV_Or_Timeout,
NumberOfAttempts = 10,
Timeout = self.readWaitMilliseconds,
),
]
),
InventoryParameterSpec_Parameter(
InventoryParameterSpecID = self.inventoryParameterSpecID,
ProtocolID = AirProtocols.EPCGlobalClass1Gen2,
),
]
), # AISpec
ROReportSpec_Parameter( # Report spec (specifies how often and what to send from the reader)
ROReportTrigger = ROReportTriggerType.Upon_N_Tags_Or_End_Of_ROSpec,
N = 10000,
Parameters = [
TagReportContentSelector_Parameter(
EnableAntennaID = True,
EnableFirstSeenTimestamp = True,
EnablePeakRSSI = True,
),
]
), # ROReportSpec
]
), # ROSpec_Parameter
]
) # ADD_ROSPEC_Message
def _prolog( self, antennas = None ):
# Disable all the rospecs. This command may fail so we ignore the response.
response = self.connector.transact( DISABLE_ROSPEC_Message(ROSpecID = 0) )
# Delete our old rospec if it exists. This command might fail so we ignore the response.
response = self.connector.transact( DELETE_ROSPEC_Message(ROSpecID = self.roSpecID) )
# Add callbacks so we can record the tag reads and any other messages from the reader.
self.resetTagInventory()
self.connector.addHandler( RO_ACCESS_REPORT_Message, self.AccessReportHandler )
self.connector.addHandler( 'default', self.DefaultHandler )
# Add and enable our ROSpec
response = self.connector.transact( self.GetROSpec(antennas) )
assert response.success(), 'Add ROSpec Fails\n{}'.format(response)
def _execute( self ):
response = self.connector.transact( ENABLE_ROSPEC_Message(ROSpecID = self.roSpecID) )
assert response.success(), 'Enable ROSpec Fails\n{}'.format(response)
# Wait for the reader to do its work.
time.sleep( (1.5*self.readWaitMilliseconds) / 1000.0 )
response = self.connector.transact( DISABLE_ROSPEC_Message(ROSpecID = self.roSpecID) )
assert response.success(), 'Disable ROSpec Fails\n{}'.format(response)
def _epilog( self ):
# Cleanup.
response = self.connector.transact( DELETE_ROSPEC_Message(ROSpecID = self.roSpecID) )
assert response.success(), 'Delete ROSpec Fails\n{}'.format(response)
self.connector.removeAllHandlers()
def GetTagInventory( self, antennas = None ):
self._prolog( antennas if antennas is not None else self.defaultAntennas )
self._execute()
self._epilog()
return self.tagInventory, self.otherMessages