کاربرد کامپیوتر در مهندسی صنایع (Bar Codes & Automatic Data Capture)
اسلاید 1: بنام خداکاربرد کامپیوتر در مهندسی صنایع (21774(نيمسال دوم تحصيلي 1386-1385يكشنبه ها و سه شنبه ها 9:00-10:30 Lecture 7AIDC
اسلاید 2: Bar Codes & Automatic Data Capture
اسلاید 3: 3AUTOMATIC IDENTIFICATION & DATA CAPTUREDEFINITION:A computerized technology that allows real-time data to be collected accurately and rapidly to create the potential for improving performance, productivity, and profitabilityAutomatic Data CaptureAutomatic Data CollectionAutomatic IdentificationQUESTION: Why should an IE know AIDC?
اسلاید 4: 4THE NEEDDemand for AIDC has “Exploded”Most training in AIDC occurs after graduation
اسلاید 5: 5AIDC Technology FamiliesOpticalBar CodesTwo Dimensional BCOCR (Optical Character Recognition)Machine VisionWirelessRFDCRFID (tags)ContactPen-Based Systems (VCR,DVD)Contact ButtonsTouch ScreensBiometricsVoice RecognitionFingerprint GeometryHand GeometryRetinal Eye Scan
اسلاید 6: 6AIDC Technology FamiliesCardsMagnetic Stripe (Credit cards, 28 words, 256 bytes)Smart/Chip Cards (65000 bytes)Magnetic Ink Character Recognition (MICR)Optical (Laser) Cards (1.6 MB)
اسلاید 7: 7QUESTIONWHEN SHOULD AIDC BE APPLIED?
اسلاید 8: 8Why AIDC?Lower Labor CostsReduced ErrorsReduced process errorsReduced Shipping ErrorsAccurate Inventory LevelsShorter Cycle Times$
اسلاید 9: 9MANUAL:AUTOMATIC:AIDC BENEFITS
اسلاید 10: 10EVALUATING AIDC TECHNOLOGIESSUBSTITUTION ERROR RATE (SER) Probability that a given character contains an error e.g., 1 error in millionFIRST READ RATE (FRR)Probability that an attempt to capture data will result in data being captured on the first attemptExpressed as a %
اسلاید 11: 11EXERCISESWhat is the number of errors to be expected in an application given number of characters entered is 53 million (53,000,000) and the SER is .00001%?If 1000 labels are to be scanned using a system with a 75% FRR, how many scanning attempts will be required?
اسلاید 12: 12AIDC TechnologiesBar CodesWireless Data CaptureAutomatic Speech Recognition
اسلاید 13: 13Bar CodesMost Widespread AIDC TechnologyMaterial or People TrackingDatabase Key
اسلاید 14: 14Typical ApplicationsShop Floor Lot TrackingWIP TrackingMRP/ERPInventory ManagementShipping/ReceivingQuality ControlLabor TrackingCost AccountingRecords/Claims TrackingLibrary ApplicationsHospital Applications
اسلاید 15: 15BAR CODESAdvantagesLow cost printingWide variety printing techniquesCustomized symbolLow SER (<1 error in 1 million)DisadvantagesNot good in hazardous environments1-D symbols hold little dataData cannot be changed
اسلاید 16: 16Wireless Data Capture --RFDC--Portable Interactive Bar Code ReadersData sent back to host computer via Radio Signal
اسلاید 17: 17RFDC ApplicationsWarehousePicking & Placing ItemsManufacturingShipping & Receiving itemsParts TrackingRetailTracking items on Shelves
اسلاید 18: 18RFDC AdvantagesPortabilityEase of CreationExpenseProhibitionsNew Capabilities
اسلاید 19: 19Wireless Data Capture --RFID--Retrieve data via radio signal from a transponder (tag) attached to itemUsed whenDistance impedes optical techniquesObtrusiveness is an issueHarsh Environment
اسلاید 20: 20Typical ApplicationsTracking Shipping Containers on high speed sortation systemsAccess ControlParts/Pallet TrackingPatient TrackingShoplifting PreventionLibrariesDepartment StoresJewelry Stores
اسلاید 21: 21RFIDAdvantagesLabel does not need to be visibleWorks well in hazardous environmentsDisadvantagesExpensive LabelingRequires a Site Survey
اسلاید 22: 22Automatic Speech RecognitionDigitizes vocal trackRecognizes through Pattern MatchingUsed for Hands-free, Eyes-Free TasksSpeech Independent vs. Speech Dependent Systems
اسلاید 23: 23Typical ApplicationsAutomatic Generation of Work Measurement StandardsRecording defects while performing visual inspectionsOvercoming Learning DisabilitiesOvercoming Physical DisabilitiesMaking Airline ReservationsBaggage/Shipment Loading
اسلاید 24: 24Automatic Speech RecognitionAdvantages:“Hands-off” operationPortable systems require no wiresDisadvantages:Slow (20 seconds)High error ratesTraining required
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