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Unread 07-01-2009, 12:53
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Re: Underestimating the Trailer

FYI, unless there's something that I missed you cannot move the hitch location once the match has started. The rule regarding the trailer hitch says a rigid, fixed location which has been interpreted by most to mean that the hitch cannot be actuated.

As for detecting the trailer location, you could have ultrasonic sensors pointed out the back of the bot to where the tongue meets the trailer. If the trailer swings to one side, the range finder on that side will get shorter and the range finder on the other side will report a longer range or just noise. Of course, this assumes you already have a crab drive system and there's an actual benefit to keeping your robot wheels oriented with the trailer wheels.
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