On the distance measurement between bots This distance measurement discussion from last year is interesting. I am also planing some distance measurements among e-puck robots. Would any of you be kind to offer more on the reflective tape.
I did some fundamental research on the reflective sheetings, they are amazingly expensive, and charge differently according to the gain (700X ~ 3000x), which refers to how much the amplitude of the signal is magnified. Any insights on it? Thanks in ad. On Wed, Sep 9, 2009 at 6:00 AM, <[email protected]> wrote: > Send E-puck-user mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.gna.org/listinfo/e-puck-user > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of E-puck-user digest..." > > > Today's Topics: > > 1. Distance of detection each other (Michael Kreuzwieser) > 2. Re: Distance of detection each other (Alexandre Campo) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 08 Sep 2009 15:21:29 +0200 > From: Michael Kreuzwieser <[email protected]> > Subject: [E-puck-user] Distance of detection each other > To: [email protected] > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-15; format=flowed > > Dear people, > we maybe want to set up a few e-puck who find each other and follow one > leader in a line. > So communication will be with the LED + IR. > > What maximum distance will be realistic for a detection of another robot? > Any experiences? > > Thank you > Michael > > -- > > Mit freundlichen Gr??en > > Michael Kreuzwieser > > > Archimedes Solutions GmbH > Saarbr?ckerstr. 24 > 10405 Berlin > > TEL +49 (0)30 / 2000 577 16 > FAX +49 (0)30 / 2000 577 20 > > ------------------------------- > www.urban116.de > www.archi-me-des.de > www.movingscience.de > > Gesch?ftsf?hrung: > A. Valder > J. Schmidtsiefen > W. Rien > S. Spenling > > Amtsgericht: Berlin Charlottenburg > HR Nr.: 107563 B. > St.Nr.: 37/310/21112 > UST-ID Nr.: DE-253.771.793 > > > > > ------------------------------ > > Message: 2 > Date: Tue, 8 Sep 2009 15:57:34 +0200 > From: Alexandre Campo <[email protected]> > Subject: Re: [E-puck-user] Distance of detection each other > To: [email protected] > Message-ID: <20090908155734.24869...@nomad> > Content-Type: text/plain; charset=US-ASCII > > Dear Michael, > > in my experience, if you try to detect the back led of a robot with the > camera of another one, you can > expect a perception range of 20cm max, and that depends on the algorithm > you use, and the light conditions of your experiments. > We had best results with RGB to HSV conversion + segmentation, in low light > environments. > > IRs are a bit more tricky, if you don't modify the e-puck body and stay > with the transparent one, you may > detect robots at 2cm, but if you put some reflective tape around the e-puck > body, you can reach ~15cm. > > hope this helps, > cheers, > alexandre campo. > > > On Tue, 08 Sep 2009 15:21:29 +0200 > Michael Kreuzwieser <[email protected]> wrote: > > > Dear people, > > we maybe want to set up a few e-puck who find each other and follow one > > leader in a line. > > So communication will be with the LED + IR. > > > > What maximum distance will be realistic for a detection of another robot? > > Any experiences? > > > > Thank you > > Michael > > > > > > ------------------------------ > > _______________________________________________ > E-puck-user mailing list > [email protected] > https://mail.gna.org/listinfo/e-puck-user > > > End of E-puck-user Digest, Vol 24, Issue 3 > ****************************************** > -- Best regards, hua
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