Within one single warehouse many different types of barcode can be seen. This is because there are likely to be a whole variety of products of shape size and textures which will perhaps warrant a unique barcode labelling approach. The smaller items are often labeled with high density symbols of 7.5 to 20 mil, while boxes or pallets typically use mid-density barcode labels. Location markers, which sometimes require reading at typical distances of up to 45 feet, commonly use 70 to 100 mil retro-reflective barcode labels.
Long range scanning
Within a traditional warehouse the scanning equipment needs to be powerful enough to read barcode labels at great height, scanning long range from a fork lift truck, scanning in bright sunlight and from pallets. All of these scenarios will also be in situations where there is not much space – which adds to the problem.
The mother of invention
Necessity is the mother of invention as they say and the technologies available for decoding barcode labels in a warehouse setting have improved and expanded in recent years. As businesses seek to accommodate 2d symbols that are becoming more common in the warehouse, they are tending to turn to 2D area imagers which not only read both 1D and 2D codes, but also easily decode symbols in direct sunlight.
The new 2d image scanner
The new 2d imager scanner allows for omni-directional scanning which leads to increased decoding speed, enhanced efficiency, and reduced user fatigue. As well as sunlight proving no problem for 2d imagers, they can be used in a variety of situations such as proof of delivery signatures, damaged goods, inspection, and quality control. Factors such as enhanced global shutter sensors, high performance processors, and rapid-pulse illumination systems are now enabling imagers to perform on an equal with lasers in the warehouse arena.
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