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1  Topics / Robotics / navigation using ultrasound on: January 18, 2013, 04:55:02 am
Is it possible to have a robot to follow a ultrasound or ir signal. ? ? My idea is to have 4 ultrasound sensors for 4 rooms and to activate the sensor corresponding to the room to which the robot should move.By including an obstacle avoidance system it would be able to  avoid obstacle right.
I m confused on the navigation part, is it possible to follow a signal  ? 
please tell me i m a newbie.
2  Topics / Robotics / Re: obstacle avoidance robot on: January 11, 2013, 07:19:22 am
Encoders are fine, in fact you'll find it harder to solve the problem without them. All your guide is telling you is that you can't assume that driving from one room to another is a standard, pre-specified operation - you may have to adjust your route on the way to avoid obstacles. You can still use encoders for dead reckoning, but you can't say that to get from room one to room two you turn east and go forward for 20,000 encoder clicks - circumstances may have changed this time.

exactly, but how can i adjust the number of turns to suite the situation. Is there any other way  ?
3  Topics / Robotics / obstacle avoidance robot on: January 11, 2013, 05:46:28 am
hi, i m new to arduino platform.I m planning to make a obstacle avoiding robot which moves between destination-Room1,room2,room3(The plan of the house is printed on a big cardboard smiley-grin  and the bot should navigate that 'house').
I m confused on how to implement the navigation.My guide said it wont be possible to use a wheel encoder because an obstacle on the path will make the preloaded program obsolete.Is there anyother method to implement the navigation. smiley-cry
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