Download - Barcode latest technology1
PRESENTED BY- DHANANJAY PRAJAPATI(1452510903)B.TECH 3RD YEARDEPARTMENT OF COMPUTER SCIENCE &ENGINERINGContact Number-9839990389
CONTENTINTRODUCTIONHISTORY OF BAR CODETYPES OF BAR CODEDATA ENTRY TECHNIQUESBENEFITS OF BAR CODEBAR CODE TERMINOLOGYBAR CODE SCANNERSBAR CODE APPLICATIONSREFERENCE
INTRODUCTIONBar code is a automatic identification technologyBar code is a predefined format of dark bars and
white spacesStructured to contain a specific piece of informationBar code allows real-time data to be collected
accurately and rapidlyCombination of bar code technology with computer
and application software improves performance, productivity and profitability
HISTORY OF BAR CODEIn 1949 Bernard Silver, a graduate Of Drexel
Institute of Technology, heard the president of a local food chain ask for a system that automatically read product information upon checkout.
Norman Woodland one of the silver’s student was the one to give the idea of using ultraviolet sensitive ink.
They made a barcode reader from a 500 watt lamp.Barcodes started to spread on products in the
1970, when the first barcode readers started to enter the market.
It was at the same time as the UPC-code was presented for standard product marking.EAN was presented 1977 and was made to match the UPC
DISCREATE SYMBOLOGY
CONTINOUS SYMBOLOGY
TYPES OF BAR CODEThere are two types of barcodes: Linear barcode
and 2D barcodesSome examples include:LINEAR BARCODES 2D BARCODES
Code 128(Shopping)
Data Matrix(Automotive item identification)
UPC(Items for sale worldwide)
PDF417(Varity of application, transportIdentify card, management)
Interleaved 2 of 5(Commercially)
Maxi code(United Parcel Service for sorting & tracking
DATA ENTRY TECHNIQUES2.MANUAL METHODS
KEYBOARD OPERATION1 ERROR/300
CHARACTERS
1.AUTOMATICMETHODSOPTICAL CHARACTER
RECOGNITIONMAGNETIC INKMACHINE VISIONRADIO FREQUENCY
IDENTIFICATIONSMART CARDSBAR CODE
BENEFITS OF BAR CODINGRepresent unique identity of a productAccuracy of data input (error free)Aid effective management of resources and
inventoriesLabor savings by avoiding manual systemCost efficientReal time data collection
BENEFITS OF BAR CODINGMeasurement of work in progress
throughout the factoryRapid access to total production
costsMore accurate dispatch
BAR CODE SYSTEM
THERMAL LABEL PRINTER
BAR CODE SCANNERSA device used to extract information
optically from a Bar CodeBar Code symbol consists of series of
vertical dark bars separated by light spacesWhen illuminated reflected light is detected
by electro optical sensorThe intensity of reflected light from the
dark bars is less than that of spaces
BAR CODE SCANNERSReflected light is converted into electrical
voltage signals
Analog voltages are digitized into raw data
The decoder converts this data into the
character data representation of the
symbol’s code
TYPES OF SCANNERS (READERS)
CONTACT READERSMust touch or come in close proximity of
symbolGood where the label cannot be placed in an
easy-to-view positionNormally hand-held/stationary unitsCommon type is pen/wand readerA high-density resolution wand used to read a
low-density symbol might see an ink spot as bar or an ink void as a space
CONTACT READERS
NON-CONTACT READERS
Reader need not come in contact with symbol
Scan distance may be from 6” to several feet depending upon symbol size and scanner design
Hand-held, fixed beam readers
FIXED BEAM SLOT SCANNER
CHARGE COUPLED DEVICE SCANNER
• CCD Scanners are similar to digital Cameras in that they have hundreds of tiny LED lights arranged in one long row capture a digital image of bar code
PORTABLE DATA COLLECTION EQUIPMENT
BAR CODE APPLICATIONSINVENTORY CONTROL
Portable readersWORK-IN PROCESS TRACKING (WIP) COMPANY
INVENTORYRaw materialsWIP (Components, Assemblies, Semi finished Products)Finished Products
SHIPPINGELECTRONIC DATA INTERCHANGE (EDI)
Direct communication between computers of two companies (Manufacturer & Vendor)
Industry-wide EDI standardsReduces cost and saves time of business transaction
BAR CODE APPLICATIONS• RETAIL APPLICATIONS
Super marketsCounter-mounted Bar Code scannersUniversal Product Code (UPC)Price and description information
WARE HOUSINGHEALTH CARE APPLICATIONS
Drugs, devices, instrumentsIdentification of expiry dateBlood banking
I. Blood groupII. Expiry dateIII. Donor traceability
REFERENCEwww.wikipidia.org www.idautomation.com
Thank You