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The difference between one-dimensional barcode scanner and two-dimensional barcode scanner

Release Time:2020-07-10

What is the difference between a one-dimensional barcode scanner and a two-dimensional barcode scanner? A: The difference between a one-dimensional scanner and a two-dimensional scanner is that the type of barcode scanned is different. A one-dimensional scanner cannot scan a two-dimensional bar code, but a regular two-dimensional scanner can scan a one-dimensional bar code. 2d barcode scanner price slightly more expensive!

The difference between one-dimensional bar code and two-dimensional bar code: one-dimensional bar code can only accommodate limited numbers or words, such as commodity name, price, etc., and cannot provide more detailed information about commodities; Two-dimensional code can accommodate Chinese, has a large storage capacity, and can contain more detailed commodity content. [Appearance distinction is shown in the following figure]]

　　

 

In addition, the classification of scanning guns is divided into red laser and wired and wireless.

1. The difference between laser scanning gun and red scanning gun

The working principle of the laser scanning gun: the internal laser device hits a laser light source point, relies on the vibration motor to swing the laser point into a laser line on the bar code, and then decodes the A- D into a digital signal.

The working principle of the red light scanning gun: using LED light emitting diode light source, relying on CCD or CMOS photosensitive elements, and then through the photoelectric signal conversion.

Because the laser relies on a vibrating motor to form a laser line, it is often easily damaged when swinging and the pendulum falls off, so the laser code scanning gun is not as good as red light. Often some laser guns fall down and the scanned light source becomes a point, and the red light recognition speed is faster than that of the laser.