Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!willett!ForthNet
From: ForthNet@willett.UUCP (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: Machine vision
Message-ID: <549.UUL1.3#5129@willett.UUCP>
Date: 24 Feb 90 21:54:57 GMT
Organization: Latest link in the ForthNet chain.  (Pgh, PA)
Lines: 45


 Date: 02-24-90 (02:28)              Number: 1602 (Echo)
   To: JOHN SOMERVILLE               Refer#: 1597
 From: GENE LEFAVE                     Read: NO
 Subj: BAR CODES, CAD, IMAGE INT     Status: PUBLIC MESSAGE

 To completely describe our system would be a bit much.
 Suffice it to say that we install library circulation
 systems.  As far as data entry goes the operators either
 key in the data or, more commonly, we convert the data
 from other sources.
 .
 The barcode number we use represents the internal record
 number for each item in the file.  Sometimes we are forced
 to use an existing alphanumeric, the problem with alphas
 is that the codes are longer and hence more error prone.
 We like to use code "I 2 of 5" because it is shorter then
 code 39.
 .
 We starter using the Computer Identics wand because it
 could append a preamble to each bar, which was the FORTH
 word to execute.  Buying from them is like pulling hens
 teeth.
 .
 We switched to Intermec and use both the portable 9440 ($)
 and the desktop wedge readers.  We wrote all of the programs.
 The internal 9440 programs are in a bizarre language called
 IRL.  You need a program called PC-IRL to program it. All of
 the host programs are in FORTH.
 .
 The INTERMEC wands seem to read more reliably then the
 Computer Identics.  We print  bars with our own programs
 on dot matrix printers, and the Intermec thermal
 printer (very nice but hard to use).  The only major problem
 we had is when a customer mislabelled about %10 of the
 items.  It took us about 3 months to track this down.
 .
 Intermec is located in Lynnwood Wash. so its not far from you.
 Their number is 206 348 2700, Canada Service is 604 683 7226. 

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