1 / 10

Barcode

Barcode. Barcode. a machine-readable information. stored data in printed parallel lines come in patterns of dots, concentric circles, and hidden in images. read by optical scanners called barcode readers or scanned from an image by special software.

kaia
Download Presentation

Barcode

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Barcode

  2. Barcode • a machine-readable information. • stored data in printed parallel lines • come in patterns of dots, concentric circles, and hidden in images. • read by optical scanners called barcode readers or scanned from an image by special software. • widely used to implement Auto ID Data Capture (AIDC) systems that improve the speed and accuracy of computer data entry.

  3. Usage • barcodes -- especially the UPC code -- have slowly become an essential part of modern civilization. • usage is widespread, and the technology behind barcodes is constantly improving. • Some modern applications of barcodes include: • every item purchased from a grocery store, department store, and mass merchandiser has a barcode on it. • keeping track of the large number of items in a store and also reduces instances of shoplifting

  4. Usage - industry • Car rental - barcodes on the car bumper. • Airlines - track passenger luggage with barcodes • Recently, researchers have placed tiny barcodes on individual bees to track the insects' mating habits. • The movement of nuclear waste can be tracked easily with a bar-code inventory system.

  5. UPC • Universal Product Code • The best-known and most widespread use of barcodes has been on consumer products • developed by the user community. Most technological innovations are first invented and then a need is found for the invention. • The U.P.C. is a response to a business need first identified by the US grocery industry in the early 1970s.

  6. UPC • Automating the grocery checkout process • reduce labor costs, improve inventory control, speed up the process, and improve customer service • The usefulness of the barcode required the adoption of expensive scanners by a critical mass of retailers while manufacturers simultaneously adopted barcode labels.

  7. Scanner • Barcode scanners are built from a fixed light and a single photo sensor that is manually "scrubbed" across the barcode. • A later design, the "laser scanner," uses a polygonal mirror or galvanometer-mounted mirror to scan a laser across the barcode -- initially only in a straight line, but eventually in complicated patterns so the reader could read barcodes at any angle.

  8. Scanner • In the 1990s digital cameras to capture barcodes, both linear and 2D. • Now often surpasses laser scanners in performance and reliability. • More recently, off-the-shelf digital cameras now have enough resolution to capture both 1D and 2D barcodes. • However, the camera phone optics are not well suited for standard codes that were designed for industrial dedicated scanners. As a result, new codes are being designed for mobile use such as color code and mCode.

  9. Mcode barcode • Specifically designed to meet the needs of emerging mobile applications and mobile camera phone devices. • Extensive research and development went into creating a code format that would provide optimal usability for mobile devices, mobile users and mobile services. • Pick up an advertisement with Mcode logo and send out request SMS – message will return to you via email system

  10. Color code

More Related