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The Application Of Barcode Scanner In Commercial

     In recent years, the domestic major shopping malls, chain stores and other commercial enterprises recognized the commercial POS system to Business Management brings great benefits, have built a commercial POS network system. For the network system design and installation principles, the professional journals are detailed, here mainly talk about as a commercial POS system front-end data acquisition part of the commercial barcode scanner how to choose.Barcode Scanner

     CCD scanner is the use of photoelectric coupling (CCD) principle, barcode printing pattern imaging, and then decoding. Its advantages are: no shaft, motor, long service life, cheap. When choosing a CCD scanner, the most important is two parameters: depth of field: Because the CCD imaging principle is similar to the camera, if you want to increase the depth of field, then the corresponding need to enlarge the lens, so that the CCD volume too large, inconvenient operation. Excellent CCD should not be close to the bar code can be read, and the volume is moderate, comfortable operation.Barcode Scanner

     Resolution: If you want to increase the CCD resolution, you must increase the unit element of the photosensitive element in the imaging department. Low-priced CCD is generally 5 pixels (pixel), read EAN, UPC and other business code is enough, for other code system will be difficult to read. Mid-range CCD is more than 1024pixel, some even reach 2048pixe1, can distinguish the narrowest unit element is 0.1mm barcode. The laser handheld scanner is a single line scanner using laser diode as the light source, it mainly has two kinds of rotating mirror and flutter mirror type.Barcode Scanner

     When choosing a laser scanner, the most important thing is to pay attention to scanning speed and resolution while depth of field is not a key factor. Because when the depth of field increases, the resolution is greatly reduced. An excellent handheld laser scanner should be high scanning speed and high resolution in a fixed depth of field.Barcode Scanner