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The choice of your barcode reader must be a good compromise
between reliability and quality of reading, in order to gain
the best advantage in your applications. |
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Different Reading Technologies
Barcode reading technology is continuously evolving and
nowadays we can count three different technologies: the
classic laser, the asserted CCD, and the emerging Imager.
The objective is answering in a better and better way to the
new requests in industrial and retail market.
Distance in reading and strength
When choosing a barcode reader, the application is the
first thing to think about. The main aspects to be considered
are distance in reading and reader strength.
Distance depends on barcode dimensions and used technology
(Laser, CCD, imager).
Knocks resistance and reliability during time are prerogative
of the internal structure and mechanics; usually laser reader
are more exposed to damages coming from ground drops, rather
than CCD and Imager readers.
Wired or Wireless?
Another important aspect to be considered in the choice is the
presence or the absence of the cable. Normally barcode
readers, after the reading, must transmit barcode to a PC or a
terminal. This transmission can be done by means of a normal
cable or by means of radio frequency. If this second choice is
made, it is very important to evaluate the maximum distance
from the base and the battery autonomy.
Future Barcode Readers
Project engineers challenge is now developing different
solutions, as an alternative to the Laser technology (that has
an history of 30 years). The aim is increasing more and more
the capability of reading at high distance and the
reliability. |
