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Walking Test - Various Terrain

Hitec robotics including ROBONOVA humanoid, HSR-8498HB servos, MR C-3024 Controllers and RoboBasic
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3 postsPage 1 of 1

Walking Test - Various Terrain

Post by DirtyRoboto » Sat Jan 17, 2009 5:19 pm

Post by DirtyRoboto
Sat Jan 17, 2009 5:19 pm

I was having a nice old play with RN and decided to see if I could build a walk routine with dumb terrain compliance. I am having a kind of success but it is a touch harder to do then I thought. This is where I am at...

I took the basic walk routine and broke it down. What I wanted to do was turn off the foot and ankle servos before he puts his foot down and places the load on it, but not before the foot is instructed to goto its position.
Then I wanted to read the position of the foot and ankle servos and use the new positions as the setting for the servos and have them turn on in the position they are in (not the walk routines position).

It is a self modified walk where the foot/ankle position is adapted by the terrain and this modification is read by the servo position.

I am still coding this and testing but have had some really good results at the cost of walking speed. Hope to post some code and video soon.

DR.
I was having a nice old play with RN and decided to see if I could build a walk routine with dumb terrain compliance. I am having a kind of success but it is a touch harder to do then I thought. This is where I am at...

I took the basic walk routine and broke it down. What I wanted to do was turn off the foot and ankle servos before he puts his foot down and places the load on it, but not before the foot is instructed to goto its position.
Then I wanted to read the position of the foot and ankle servos and use the new positions as the setting for the servos and have them turn on in the position they are in (not the walk routines position).

It is a self modified walk where the foot/ankle position is adapted by the terrain and this modification is read by the servo position.

I am still coding this and testing but have had some really good results at the cost of walking speed. Hope to post some code and video soon.

DR.
In servo's we trust!
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Post by Robo1 » Tue Jan 20, 2009 3:58 pm

Post by Robo1
Tue Jan 20, 2009 3:58 pm

I've always thougth this would be a good way of walking over uneven terrain. are you using IK to compensate for the new foot position in the walking gait.

Bren
I've always thougth this would be a good way of walking over uneven terrain. are you using IK to compensate for the new foot position in the walking gait.

Bren
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Post by Gort » Tue Jan 20, 2009 10:59 pm

Post by Gort
Tue Jan 20, 2009 10:59 pm

I don't think that you would have to use IK. I think DR's idea would work better if the RN had a Bioloid like foot with two servos.
I don't think that you would have to use IK. I think DR's idea would work better if the RN had a Bioloid like foot with two servos.
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