IndustrialDAQSystemfor
MeasurementsandMonitoring
Hans-PetterHalvorsen,M.Sc.
SystemOverview
Mobile Device
Sensors
DAQ
System
IndustrialDAQ
Hardware
DataLogging
Computer
LabVIEW
Monitoring Data
Cloud
WebService
DataDashboard forLabVIEW
LabTopics
• DataAcquisition- DAQ
• IndustrialDataloggingandMonitoringSystems
• WirelessSystems
– Wi-FiDAQ,ZigBee
• IndustrialIT,NetworkInfrastructureand
Protocols
• WebServices– Themodern“OPCapproach”!
3
AssignmentOverview
1. DAQSystem:CreateaDAQsystemusingtheavailible
hardwareatTUC(chooseonlyoneofthealternatives).
CreateanApplicationinLabVIEWwithproperGUI/HMI
(LoggingandPresentationofData)
1. DataPublishing&Monitoring:Usethe“DataDashboard
forLabVIEW”inordertocreateanapplicationusedfor
Measurement,andMonitoring.
Seenextslidesfordetails...
Software
Software
+DriverSoftware:
NI-WSN
NI-DAQmx
LabVIEWReal-TimeModule
NI-cRIO
NI-IMAQdx
VisionModule
5
Hardware
Hardware
Youmayselectbetweendifferent alternatives
NIWLS-9163
MeasurementNode
(NIWSN-3202)
I/OModule (e.g.,NI-9234,NI-9201,NI-9211)
NIWAP-3711
Gateway
(NIWSN-9791)
cRIO(cRIO-9074/9024)
BaslerscA640-70gcCamera
I/OModule(e.g.,NI-9234,NI-9201,NI-9211)
PT-100LabEquipment
6
DAQ
Theory
Dataacquisition(DAQ)istheprocessofsamplingsignalsthat
measurerealworldphysicalconditionsandconvertingtheresulting
samplesintodigitalnumericvaluesthatcanbemanipulatedbya
computer.Thecomponentsofdataacquisitionsystemsinclude:
• Sensorsthatconvertphysicalparameterstoelectricalsignals.
• Signalconditioningcircuitrytoconvertsensorsignalsintoaform
thatcanbeconvertedtodigitalvalues.
• Analog-to-digitalconverters,whichconvertconditionedsensor
signalstodigitalvalues.
InthisassignmentwewillusemoreadvancedandDAQhardwareusedintheindustry today
(Wi-FiDAQ,ZigBee, cRIO,cDAQ,etc.)– notthesimple USB-6008thatyouarefamiliarwith
DAQ
Theory
InthisassignmentwewillusemoreadvancedandDAQhardwareusedintheindustry today
(Wi-FiDAQ,ZigBee, cRIO,cDAQ,etc.)– notthesimple USB-6008thatyouarefamiliarwith
DAQSystemOverview
Theory
9
“NextGenerationDAQSystems”
10
Theory
WirelessDAQSystem
Overview
Sensor
Incl.Transmitter
Wi-Fi (IEEE802.11)
orZigBee(IEEE802.15.4)
DAQ
Gateway/Rou
ter/WAP
I/OModule
TwistedPair
Cable
0-5V/4-20mA
Ethernet
(IEEE802.3)
EthernetCable
orWi-Fi (IEEE802.11)
PC
Internet
Mobile
Device
Wi-Fi
(IEEE802.11)
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TypesofWirelessDAQ
Theory
Herearesomeexamples:
• Cellular
• Bluetooth
• ZigBee
• WirelessUSB
• Wi-Fi
• WirelessHART
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Theory
WirelessDAQ
SeeTutorial“WirelessDataAcquisitionin
LabVIEW”formoredetails...
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DAQwithWebServices
Theory
• AgrowingtrendistouseatechnologybuiltonTCPand
HTTPcalledWebServices.
• AWebService isanapplicationprogramminginterface
(API)thatcanbeaccessedviaHTTPrequests.
• Whencalled,WebServices returnahuman-readable
response.
• ModernWebServicesuseJSONresponsesbutother
responseoptionsareXML,HTML,orplaintext.
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DAQwithWebServices
Theory
• ThereareseveralreasonswhyengineersandITdepartmentsare
choosingWebServicesoverothercommunicationtechnologies.
• First,WebServicesarestraightforwardandsimpletoaccessfrom
anyprogramminglanguage,includingC++,ObjectiveC,C#and
LabVIEW.
• Second,sinceWebServicessitontopofcommonnetwork
protocols,thecommunicationisconsidered“ITfriendly”compared
withproprietarynetworkprotocols.
• Third,WebServicescanalsobeeasilyencryptedviaindustrystandardtechnologieslikeSecureSocketsLayer(SSL)orTransport
LayerSecurity(TLS).
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LabEquipment
Alternatives
Hans-PetterHalvorsen,M.Sc.
HardwareAlternatives
Chooseone ofthefollowinghardwarealternatives(we
haveonly2ofeachequipment):
1.
2.
3.
4.
5.
VisionSystem
ZigBee
cRIO
CompactDAQ(cDAQ)
Wi-FiDAQ
Seenextpagesfordetails
17
Alt1:Vision
Numberof Units:2
LabVIEWVision Module
Counting number of partsusing
aCameraandLabVIEW
EthernetCable
DataDashboard App/NativeApp
WebService
iPhone,iPad, Android Deviceor
Windows8ComputerorTablet
BaslerscA640-70gcCamera
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Alt2:ZigBee DAQSystem
Gateway
(NIWSN-9791)
Numberof Units:2
DataDashboard App/NativeApp
WebService
PT-100Device
iPhone, iPad,Android
deviceorWindows 8
Computer orTablet
Ethernet
Cable
ZigBee
MeasurementNode
(NIWSN-3202)
1-5V
Alt3:cRIO DAQSystem
Numberof Units:2
DataDashboard App/NativeApp
WebService
Ethernet
Cable
iPhone,iPad, Android Deviceor
Windows8ComputerorTablet
cRIO(cRIO-9074/9024)
I/OModule(e.g.,NI-9234,NI-9201,NI-9211)
1-5V
PT-100Device
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Alt4:CompactDAQ
Numberof Units:3
DataDashboard App/NativeApp
WebService
Ethernet
Cable
iPhone,iPad, Android Deviceor
Windows8ComputerorTablet
cDAQ
NIcDAQ-9174
1-5V
PT-100Device
NIcDAQ-9171
I/OModule(e.g.,NI-9234,NI-9201,NI-9211)
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Alt5:Wi-FiDAQSystem
NIWAP-3711
Numberof Units:2
DataDashboard App/NativeApp
WebService
Ethernet
Cable
Wi-Fi
iPhone,iPad, Android Deviceor
Windows8ComputerorTablet
NIWLS-9163
1-5V
PT-100Device
I/OModule (e.g.,NI-9234,NI-9201,NI-9211)22
DAQSystem
Hans-PetterHalvorsen,M.Sc.
ImplementyourDAQSystem,eg.:
Sensor incl.
Transmitter
Pt-100
DAQ
Hardware
Ethernet/Wi-Fi/ZigBee
Wi-FiDAQ
ZigBeeDAQ
cRIO
Makeaproper GUIforMonitoring Data
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Sensors
Calibration:Acomparisonbetweenmeasurements.Oneof
known magnitudeorcorrectnessmadeorsetwithonedevice
andanothermeasurementmadeinassimilarawayaspossible
withaseconddevice.Thedevicewiththeknown orassigned
correctnessiscalledthestandard.Theseconddeviceistheunit
undertest,testinstrument,oranyofseveralothernamesfor
thedevicebeingcalibrated.
Theory
Accuracy:Howclosethe
measuredvalueisthethe
actual/realvalue,eg.,±0.1%
Resolution:Thesmallestchangeitcandetectinthe
quantitythatitismeasuring.Thefollowingformulamaybe
used(whereSisthemeasurementspan,e.g.,0-100deg.C):
Intheassignment youneedtodealwiththeseparameters.Youfindinformation abouttheseparametersintheData
sheetforyourdevice
http://en.wikipedia.org/wiki/Calibration
http://en.wikipedia.org/wiki/Measurement_uncertainty
http://en.wikipedia.org/wiki/Accuracy_and_precision
Congratulations!- YouarefinishedwiththeTask
26
DataPublishingand
Monitoring
Hans-PetterHalvorsen,M.Sc.
LabVIEWWebService
Extendyour DAQsystemwithaWebServiceinordertomaketheDataPublic
DataDashboard forLabVIEW
CreateaWebServiceinLabVIEW
WebService
WLAN/
Internet
Usethe“DataDashboardfor
Tip!Tryonyour personalcomputer
LabVIEW”Appinorder toread
beforeyoutryitinaWLANor
DAQ
Internet(this requiresthatyouhave theDataonaMobileDevice
Hardware
(Smartphone/Tablet)
aWindows8PCwiththeData
Dashboard Appinstalled)
28
http://zone.ni.com/reference/en-XX/help/371361K-01/lvhowto/build_web_service
DataDashboardforLabVIEW
• AvailableforiOS(iPhone,iPad),Android
andWindows8ModernUI/Windows
StoreApp
• ThisAppcanreceiveDatagenerated
fromaWebServicecreatedinLabVIEW
• RetrieveandMonitorDatafromthe
DAQhardwareusingthe“Data
Dashboard”forLabVIEWApp
• MakesuretocreateaproperGUI/HMI
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Congratulations!- YouarefinishedwiththeTask
30
Congratulations!- Youarefinishedwithall theTasksintheAssignment!
Hans-PetterHalvorsen,M.Sc.
UniversityCollegeofSoutheastNorway
www.usn.no
E-mail:hans.p.halvorsen@hit.no
Blog:http://home.hit.no/~hansha/