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Subject: 
Re: Barcodes & error detection
Newsgroups: 
lugnet.robotics
Date: 
Thu, 8 Sep 2005 07:01:17 GMT
Viewed: 
1082 times
  
Hello Brian,

Error correction is good, but no error is probably better...

   It turns out the errors seem to only be of the form of a '1' (black)
mistakenly read as a '0' (white).

This may be caused by specular reflexion on a too shiny black stripe. We had
that problem during the Billund AFOL mindstorms competition, it was solved by
tilting the light sensor...

Philo



Message has 1 Reply:
  Re: Barcodes & error detection
 
(...) Absolutely, but in any real world application there is almost always some error rate. (...) John Barnes also suggested that to me after I posted, and I'm embarassed to admit that the thought hadn't occured to me. I need to test (again), but (...) (19 years ago, 8-Sep-05, to lugnet.robotics)

Message is in Reply To:
  Barcodes & error detection
 
Some of you at BrickFest may have seen Gus, a small robotic forklift that was one of my GBC modules. Gus had two problems at BrickFest. First, while the codereading task was 98% accurate, that still means on average once every 16 circuits of the (...) (19 years ago, 7-Sep-05, to lugnet.robotics)

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