Subject:
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RE: Newbie has an idea - Nascar style racing?
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 26 Nov 2002 16:01:09 GMT
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Original-From:
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Rob Limbaugh <RLimbaugh@#nospam#greenfieldgroup.com>
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Viewed:
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2214 times
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> This track should be able to work with a single light sensor.
> One of my
> concerns is if the light sensor will be able to identify the
> color of the
> ground when passing over it at high speeds
How about blocking the illumination LED and using the LEGO LAMP for
illumination?
> The start/finish line will use a black line or a overhang
> that anttenae
> linked to a touch sensor could hit ( as suggested by a prev.
> post) I would
> like the RCX to time each lap and adjust his acceleration/braking
This eliminates one more color/pattern for the RCX to look for, probably a good
thing. How would this relate to determining winner of a race?
> accordingly. A signal from a RCX or the IR port will signal
> the start of
> the race. I would like to log the laptimes on a database
The remote may also be good to use as an emergency stop.
It would be also great to have an overhead cam...
> Another poster made a good suggesstion about accident
> avoidance by using a
> taillight and a light sensor on the hood.
In order to use one light sensor to monitor the track and tail-lights, both the
track and tail-lights of other bots must be in the same field of vision. The
only way I can think of to perhaps accomplish this is to have the light sensor
far enough above the track that tail-lights from another bot can shine down at
the track. Would that be possible solution? If it is, lights could be shining
all around a bot to create a halo effect...
And still, that doesn't address two bots side by side and one experiences drift
due to different motor speeds. But, combining the White-Gray-Black track
approach, only make that per lane... that might solve the problem, or at least
help to minimize it. If the Gray was one of 3 "lane" shades, then a bot could
tell which lane it is in (or supposed to be in) and use that as an advantage in
the turns. During a turn, it could "take a chance" at cutting into other lanes,
but be penalized if it causes an accident.
- Rob
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