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Hi,
Can someone explain me how the bar code reader of the codepilot works.
I figured out the basics, but I can not get to the clocking stuff. You can move
either slow or fast over the bar codes to program the codepilot.
I want to use the rcx to detect different trains by fixing a bar code under
the engine and wagon chasis. With this, I hope to redirect trains to another
track, stopping at stations, changing train composition etc...
Guido
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Message has 4 Replies:
 | | Re: how does a bar code reader work?
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| This is going to be tricky without real arrays. LegOS may be the only option. You'll be looking for a start symbol (maybe just one framing bit, sometimes a legal character in the barcode set and sometimes just a pattern). Once you identify it you (...) (25 years ago, 30-Dec-99, to lugnet.robotics, lugnet.trains)
| | | Re: how does a bar code reader work?
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| (...) Well I don't have the code pilot but at my previous job I worked on Warehouse Control systems that were Bar Code intensive. As I am sure you know a bar code is just a simple representation of letters and/or numbers that are readable by a (...) (25 years ago, 30-Dec-99, to lugnet.robotics, lugnet.trains)
| | | Re: how does a bar code reader work?
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| (...) I just realized that I answered your barcode question without considering what you were trying to do! For your application you can use (or invent!) any barcode system you like. In fact, something simple like POSTNET (used in the US to add a (...) (25 years ago, 30-Dec-99, to lugnet.robotics, lugnet.trains)
| | | Re: how does a bar code reader work?
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| The Code pilot is not fit for this job. Unfortunately you can't program the CP to distuiguish between bar codes during run. It can only sense the speed of a passing light pattern, which may or may not be a bar code picture. Eric Brok -------- Visit (...) (25 years ago, 10-Jan-00, to lugnet.robotics, lugnet.trains)
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