Introduce a two-dimensional bar code scanner category
Introduce a two-dimensional bar code scanner category
According to the principle of a two-dimensional bar code scanner can be divided into:
(A) linear and linear CCD image reader (Linear Imager)
Can read one-dimensional barcodes and linear stacked two-dimensional code (such as PDF417), in reading the entire sweep of the two-dimensional bar code is required barcode vertical direction, we call "sweep reading." These products are cheaper.
(B) with grating laser reader
Can read one-dimensional barcodes and linear stacked two-dimensional code. Read the two-dimensional code is the light at the barcode, completed by the vertical scanning grating elements, without manual sweep.
(C) an image reader (Image Reader)
Use of area array CCD camera mode will be analyzed and decoded barcode image capture, you can read all types of one-dimensional barcodes and two-dimensional bar code.
In addition, two-dimensional bar code identification equipment according to different ways of working can be divided into: handheld, stationary peaceful version scanning.
Two-dimensional bar code identification device for identifying two-dimensional bar code will have some restrictions, but are able to identify the one-dimensional bar code.
