Presentation on theme: "Abstract Radio-frequency identification (RFID) is an emerging technology, which promises to advance the modern industrial practices in object identification."— Presentation transcript:
1 AbstractRadio-frequency identification (RFID) is an emerging technology, which promises to advance the modern industrial practices in object identification and tracking, asset management and inventory control. This technology is being evaluated and implemented successfully in many manufacturing and distribution environments, retail stores and defense installations.The scope of RFID is rapidly shifting from tracking objects (present or absent) to monitoring the condition (where and how) of engineering systems. The integration of sensors with RF tags (Smart Sensors) enables RFID technology to gather and process sensor data in addition to identifying and tracking the object. The deeper ramification of such RFID systems for monitoring manufacturing systems remains largely unexplored and untapped.The focus of the presentation will be to present the results of our in-depth review of the current and emerging technologies and applications based on RFID and Smart sensors for depot support and logistics environments and for machine condition monitoring.
2 Radio-Frequency IDentification (RFID) Radio-Frequency identification (RFID) is generic term for technologies which use RF waves to identify, track or categorize any objectRFID is fast, reliable, and does not require physical sight or contact between reader and the tagged object
3 RFID System Components Tags (Transponders)Attached to the object to be identified, stores information (unique code) about object and sends this information back to reader when receives appropriate frequency signalsReader/InterrogatorReader sends signals of appropriate frequency and facilitates data transferAntennaAntenna radiates the RF signal to, and receives signal from the transponderInterfaceThis unit interfaces the reader to an intelligent device / controllerHost/Controller (PC/Laptop)Computer with suitable software controls RFID readers
4 How system works? Controller activates RFID reader to send RF signals Reader sends the signal of appropriate frequency (LF,HF,UHF,MW)Tag receives and modifies the signalTag sends modified signals back through tag antennaReader antenna receives the modified signal and reader decodes itController analyzes the results
5 RFID and Smart SensorsSensors can be integrated with RF tags (Smart Sensors) and sensor data can be communicated using RF wavesThis enables RFID systems to gather and process sensor data in addition to identifying and tracking objectApplications:Machine Health Monitoring, Fluid Composition Detection.
6 Applications in Depot Support Environment WarehouseVehicle InspectionMaterial request sent to the warehouse and material retrieved as per history sheetVehicle brought to maintenance shopVehicle history sheet retrievedVehicle tag detected by readers mounted in the gatesBenefitsAutomatic OperationERP SystemShopTime ManagementQuality ManagementVehicle sent to appropriate machines and database updated after each operationAppropriate technician informed as per schedule via mobile communicationOperation Sequencing and Scheduling done as per availability of machinesPoka - YokeMaterial Management
7 Applications in Logistics WarehouseSupplier SiteTransitParts recognized and database updated at warehouse gateMode of transit tracked at every designated halt by Through satellite communicationParts properly tagged at supplier site and inventory database updatedBenefitsReal Time Inventory TrackingParts grouped and storedin the ASRSEliminating Inventory ShrinkageRequest sent to ASRSCycle time ReductionReaders mounted on forklift trace and track the parts out of the warehouse to appropriate shopInformation VisibilityERP SystemDelay Reduction
8 Applications in Monitoring Health of Machines DEPARTMENT OF MACHINE MAINTENANCELubrication & CoolantTool EngineeringTribologyMetrologyThe database sorts data & sends to appropriate departmentBenefitsMACHINE CONDITION MONITORING DATABASEReduction in response timeLubricant levelTable alignmentTool wearBearing conditionQuality managementReduction of scrapPredictive maintenanceRFID based Smart Sensors send critical information about machine parameters to the central database
9 Environmental Conditions Tag Selection GuideFactors affecting Tag SelectionTAG / TRANSPONDERApplicationRead RangeForm FactorStandard ComplianceWhat is application?Short RangeLong RangeISO/IECEPC Gen 1, 2Frequency RangeFunctionalityEnvironmental ConditionsPassive Active Semi PassiveLF 125,134 KHzHF MHzUHF MHzMicrowave 2.45 GHzRF friendlyVicinity of Metals & Liquids
10 Reader Selection Guide Factors affecting Reader SelectionReader/InterrogatorApplicationRead RangeForm FactorStandard ComplianceWhat is application?Short RangeLong RangeISO/IECEPC Gen 1, 2Frequency RangeFunctionalityEnvironmental ConditionsPassive Active Semi PassiveLF 125,134 KHzHF MHzUHF MHzMicrowave 2.45 GHzRF friendlyVicinity of Metals & Liquids
11 Coupling, field & applications based on frequency Short Range ApplicationsLong Range ApplicationsPowered by EM fieldPowered by Radio-wavesCoupling, Field & ApplicationNear Field CommunicationFar Field CommunicationInduction CouplingPropagation or Backscatter CouplingLFHFUHFMicro-WaveMHz13.56KHz2.45GHz
12 Frequency Allocation as per region Geographical RegionsMicro-WaveLFHFUHFRegion 1Region 2Region 3125 – 134 KHzMHz2.4 – 2.48 GHz13.56 MHzMHzMHzEurope, Middle East, Africa, Former Soviet UnionUS & Canada, Pacific East of international date lineJapan
13 Air Interface Protocol Air Interface Protocols standards over frequency rangeEPC Gen 1EPC Gen 1, Gen 2Air Interface ProtocolISO/IECISO/IECISO/IECISO/IECLFHFUHFMicro-waveKHz13.56MHzMHz2.45GHz
14 Max. Possible Read Range based on frequency range
15 Typical applications based on frequency range Long Range ApplicationsApplications requiring large data transferMicro-Wave2.45 GHzAutomatic Toll Collection SystemsSupply Chain ApplicationsUHFMHzLong Range Systems: Range>1mDock Door ReadingAsset management in WarehouseOverhead readingSmart ShelvesBaggage TrackingShort Range Systems: up to 1 m Applications in vicinity of metals and liquidsHFMHzFrequency RangeAnimal IdentificationItem Level Tracking – Baggage handlingSmart ShelvesShort Range SystemsLFKHzElectronic Door Locking SystemContact less Smart Card SystemPOS applicationsTypical Applications