Re: barcode recognition software

On Wed, 9 Jan 2008, jacek.kutzmann@xxxxxxxxx wrote:

I want to create a system to automatically scan and bind document
pages basing on a printed linear barcode.

Don't know much about it, and it is not clear to me why this should be java related, but I'd assume it would be simpler to buy a barcode reader, connect it to a (serial) port, and programmatically access it.

We once had to deal with barcode recognition of spectroscopic masks to be mounted on an instrument on the VLT (Very Large Telescope). The barcodes were cut in invar foils by a laser cutting machine (but I used to produce paper mockups in Postscript). We bought a few commercial barcode readers from Datalogic.

These devices had to be attached to the serial port of a PC (at the time). A maintenance program came with the readers, which had to be used only once to configure their EEPROMs. In particular the readers supported a wide range of commercial barcode standards (we selected the 2/5 interleaved).

After that we could just trigger a read from the serial port and obtain in return a 6-digit numeric code. The basic communication protocol was clearly explained in the docs, and we just wrapped it into an higher level protocol to read exactly 6 digits and handle wait. At the time we did that programmatically within a Visual Basic program, but any language should do.


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