What is the composition and identification principle of bar code scanning gun?

- Sep 26, 2018-

What is the working principle of the barcode scanning gun/scanner and how does its identification data be transmitted to the computer? The barcode scanner is generally composed of light source, optical lens, scanning module, analog-digital conversion circuit and plastic shell.

Barcode Overview - Barcode Recognition Principle (Barcode Recognition Principle) Barcode was first proposed by N.T. Woodland of the United States in 1949. With the continuous popularization of computer applications, the application of bar code has been greatly developed. Barcode can mark the country of production, manufacturer, commodity name, production date, book classification number, mail origin and destination, category, date and other information, so it has been widely used in commodity circulation, book management, post and telecommunications management, banking system and many other fields.

Bar code is one of the most economical and practical automatic recognition technologies up to now. It has not only fast input speed, but also high reliability, and the bit error rate is less than one millionth. In addition, its production is very simple, no special requirements for equipment and materials, equipment and low production costs.

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