Dwarakseminar1

1,120
-1

Published on

Published in: Education
1 Comment
2 Likes
Statistics
Notes
No Downloads
Views
Total Views
1,120
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
95
Comments
1
Likes
2
Embeds 0
No embeds

No notes for slide

Dwarakseminar1

  1. 1. WELCOME TO SEMINAR ON BARCODE
  2. 2. KEY CONCEPTS <ul><li>INTRODUCTION </li></ul><ul><li>History of barcode </li></ul><ul><li>Types of barcode </li></ul><ul><li>Barcode representation </li></ul><ul><li>Architecture of barcode </li></ul><ul><li>Working of barcode </li></ul><ul><li>Barcode readers </li></ul><ul><li>Advantages </li></ul><ul><li>Disadvantages </li></ul><ul><li>Applications </li></ul><ul><li>Conclusion </li></ul>
  3. 3. INTRODUCTION <ul><li>It is an automatic identification technology </li></ul><ul><li>Bar code is a predefined format of dark bars and white spaces </li></ul><ul><li>Structured to contain a specific piece of information </li></ul><ul><li>It allows real-time data to be collected accurately and rapidly </li></ul><ul><li>Combination of barcode technology with computer and application software improves performance, productivity and profitability </li></ul>
  4. 4. HISTORY OF BARCODES <ul><li>1952 : </li></ul><ul><li>First patent was issued to Joseph Woodland & Bernard Silver. </li></ul><ul><li>1966 : </li></ul><ul><li>the National Association of Food Chains (NAFC) held a meeting where they discussed the idea of using automated checkout systems. </li></ul><ul><li>1973 : </li></ul><ul><li>Mr. George Laurer of IBM conducted research work and invented a code in rectangular bars. </li></ul><ul><li>The Universal Product Code was the first bar code symbology widely adopted in April 1973. </li></ul><ul><li>1974 : </li></ul><ul><li>UPC become the first consumer item ever scanned and that was the beginning of the bar code world. </li></ul><ul><li>1976: </li></ul><ul><li>UPC led to the adoption of the EAN code format, similar to UPC, in December 1976. </li></ul>
  5. 5. Barcode Symbology
  6. 6. Types of barcodes <ul><li>1.Universal Product code(UPC) </li></ul><ul><li>There are five versions in UPC </li></ul><ul><li> UPC version A </li></ul><ul><ul><ul><li>UPC version E </li></ul></ul></ul><ul><ul><ul><li>UPC version B </li></ul></ul></ul><ul><ul><ul><li>UPC version C </li></ul></ul></ul><ul><ul><ul><li>UPC version D </li></ul></ul></ul><ul><ul><ul><li>2.Europian Article Number( EAN) </li></ul></ul></ul><ul><ul><ul><li>There are two versions in EAN </li></ul></ul></ul><ul><ul><ul><li>EAN version 8 </li></ul></ul></ul><ul><ul><ul><li>EAN version 13 </li></ul></ul></ul>
  7. 7. ARCHITECTURE OF BARCODE
  8. 8. HOW TO CONNECT BRACODE READER TO PC
  9. 9. Working of barcode
  10. 10. Types of barcode representations <ul><li>A barcode is an Optical Machine-Readable representation of data, </li></ul><ul><li>which shows the certain data on certain product. </li></ul><ul><li>It can be represented in two forms- </li></ul><ul><li>a.) 1D or Linear barcode representation. </li></ul><ul><li>b.) 2D or Matrix barcode representation. </li></ul>
  11. 11. 1D or Linear barcode <ul><li>if the barcode represented data in width ( lines) & the spacing of parallel lines, then it will be referred to as a 1D or Linear barcode representation .  </li></ul><ul><li>Ex. : All version of UPC & EAN . </li></ul>
  12. 12. 1-D Barcode
  13. 13. UPC-A barcode symbol <ul><li>first & last digit always placed outside the symbol to indicate quiet zones that the necessary for barcode scanners to work properly </li></ul>
  14. 14. Ean-8 Version <ul><li>EAN-8 is an 8 digit code. EAN-8 has a left hand guard pattern, four odd parity digits, a center guard pattern, four even parity digits, and a right hand guard pattern. An EAN-8 bar code has two flag digits, five data digits and one check digit . </li></ul>
  15. 15. EAN-13 barcode symbol <ul><li>first digit is always placed outside the symbol, additionally right quiet indicator (>) is used to indicate quiet zone, that are necessary for barcode scanner to work properly. </li></ul>
  16. 16. 2d or matrix representation <ul><li>if the barcode represented in squares, dots, hexagon & other geometric patterns with in image termed as 2D or Matrix barcode representation.  </li></ul><ul><li>Ex. : boiler plate text as 4 segment data matrix 2D, semacode matrix 2D, </li></ul><ul><li>  </li></ul><ul><li>QR code ,high capacity color barcode 2D matrix etc. </li></ul>
  17. 17. 2-D Barcode <ul><li>It is similar to a linear (1-dimensional) barcode, but has more data representation capability. </li></ul>PDF417
  18. 18. HIGH CAPACITY COLOR BARCODE
  19. 19. TYPES OF BARCODE READERS Pen type reader Laser scanner CCD reader Camera based reader
  20. 20. PEN TYPE READER Laser scanners work the same way as pen type readers except that they use a laser beam as the light source and typically employ on rotating prism to scan the laser beam back and forth across the bar code. Just the same as with the pen type reader, a photo diode is used to measure the intensity of the light reflected back from the bar code. In both pen readers and laser scanners, the light emitted by the reader is tuned to a specific frequency and the photo diode is designed to detect only this same frequency light.
  21. 21. LASER SCANNER
  22. 22. CCD Reader
  23. 23. CAMERA BASED READER
  24. 24. ADVANTAGES OF BARECODE TECHNOLOGY
  25. 25. DISADVANTAGES
  26. 26. APPLICATIONS OF BARCODE
  27. 27. CONCLUSION
  28. 28. EDITED BY DWARAKANATH.C
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×