Scanners are devices of the day- one just cannot survive without having one in life. Everyday tasks of scanning documents for the office, images and memories to get them printed, or to upload answer scripts by children in times of the pandemic! How one would survive without scanners, is still a question that would never gather sustainable answers. Barcodes, on the other hand, too, are devices of the day. Can someone ever think of the time when there would not be any barcodes? Well, that would be rhetoric for sure. Barcodes are everywhere, just like scanners are everywhere. We find them in shopping centres, in libraries, at toll stations, and everywhere our eyes can turn. How, convenient life is with barcodes and scanners, and subsequently, with เครื่องสแกนบาร์โค้ด.
Usage of barcode scanners
เครื่องสแกนบาร์โค้ด are put into use by companies to record and read information stored in the barcodes. Of course, one cannot ‘read between the lines’ of the barcode to infer what they say, however much literate one is. That is one thing where machines master human beings. The scanners have a source of light that beeps onto the code, a lens to scan it, and light sensors to read it and translate the optical cues into electronic signals.
Working of the barcode scanner
All barcodes scanneroperate on the beam of light that they flash onto the barcode and the one that is reflected back.Technically, those dark lines on the code reflect considerably less light as compared to the blank spaces between them. Finally, the scanner converts the light energy transmitted into its electrical counterpart. This is then decoded by a decoder, converted into readable data, and then forwarded on to the computer system.
Types of barcode scanners
companies generally usea slot, image or light scanner to scan and decode single dimensional barcodes. Slot scanners are usually employed at retail stores or checkout counters where an item is swiped onto a reading device, or when an employee’s identity card needs to be read. It is stationary in nature of its movement and it is only the item that needs to be moved.
The laser scanners are a system of lenses and mirrors that are powerful enough to scan upto six hundred scans per second without the possibility of errors. These laser units are employed in stationary and office setups.
One cannot deny the fact that barcode scanners are at our rescue24x7 at all days of the year. And we would always acknowledge and appreciate their efforts to make our lives easier. Think of the times when we would be required to fill in the details of a can of diet coke ourselves to check out of the store. Would we not remember these pretty codes in black, back then?
