To use the laser via USB you still need to apply power via the other plug.
Toby
On 6/11/07, laurentien <luc.rolland@...> wrote:
>
>
> Dear all,
>
> I have bought one URG-04LX and I can read that it seems to be very good.
> However, with the software provided, I have no signal going to it. I want
> to
> apply this laser scanner to do 3D object reconstruction b y mounting it a
> a
> robotic arm on top of a Pioneer platform.
>
> The problem is twofold: I do not have proper documentation that would help
> troubleshoot and the supplier is not responding to my messages.
>
> Do you have any suggestion on how to use the USB link ?
>
> LHR
>
>
> Toby Collett wrote:
> >
> > I've done some playing with the laser and pmap/amcl, seemed to work
> > okay, no real numbers and I havent used the SICK for comparison.
> >
> > Ill be interested to hear what you think of it once youve had time to
> > try it properly.
> >
> > Toby
> >
> > Brian Gerkey wrote:
> >
> >>
> >> On Sep 29, 2005, at 11:12 PM, Jonathan Paxman wrote:
> >>
> >>>
> >>> I wonder if anyone has written (or is writing) a driver for the Hokuyo
> >>> URG laser range finder?
> >>
> >>
> >> Yes, indeed. Toby Collett has done just this, and checked it into CVS.
> >> It's a player 2.0 driver, so you'd have to work from CVS to try it
> >> out. Alternatively, I think Toby mentioned that he has a player 1.6
> >> version of the driver; maybe he'll post it somewhere?
> >>
> >>>
> >>> Since the URG returns 768 points per scan, presumably this would
> >>> involve modifying the laser interface to increase the value of
> >>> PLAYER_LASER_MAX_SAMPLES (401 by default). Would increasing this
> >>> value break anything else?
> >>
> >>
> >> In part because of the URG, that value is 1024 in player 2.0. The
> >> player 1.6 version of the driver probably skips scans in order to fit.
> >>
> >>>
> >>> For information, the Hokuyo URG-04LX is a small (50x50x70mm, 150g)
> >>> short range (up to 4m) laser rangefinder. It is low power (500mA @
> >>> 5V), high resolution (1024 points per revolution) and wide angle (240
> >>> degrees). Scan rate is 10Hz.
> >>
> >>
> >> Yeah, it's quite cute. Has anybody tried building a map with this
> >> thing yet? I'm going to give it a try next week.
> >>
> >> brian.
> >>
> >
> >
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