The Naked Scientists

The Naked Scientists Forum

Author Topic: Is there a sensor that helps robots balance?  (Read 1123 times)

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • Posts: 511
  • Thanked: 12 times
    • View Profile
Is there a sensor that helps robots balance?
« on: 25/09/2015 18:50:01 »
Paul asked the Naked Scientists:
   
I saw a robot on TV spill the contents of a plate. When I carry my cup of coffee to the tearoom (coffeeroom?) table at work, I watch the coffee to see if the mug is upright so the coffee does not spill and I adjust my wrist to compensate for any variance and to avoid any embarrassment. Some cellphones these days have software in them which senses if they are upright. Perhaps robot (depending on their tasks) also need similar software/hardware to cope with possible spills.
What do you think?
« Last Edit: 25/09/2015 18:50:01 by _system »


 

Offline Pecos_Bill

  • Sr. Member
  • ****
  • Posts: 334
    • View Profile
Re: Is there a sensor that helps robots balance?
« Reply #1 on: 25/09/2015 19:39:53 »
I believe visually impaired people sometimes carry their coffee with a thumb over the rim to keep from spilling it.

It is not feasible -- yet -- to give robots the biological sense of stereognosis. If you lose stereognosis - in the words of Yusuf Islam -- you won't have to walk no more. [1.]

You can't put a gyroscope in peoples' heads without cosmetic problems. [hint. hint.]


[1.] 
« Last Edit: 25/09/2015 19:47:34 by Pecos_Bill »
 

Offline evan_au

  • Neilep Level Member
  • ******
  • Posts: 4126
  • Thanked: 247 times
    • View Profile
Re: Is there a sensor that helps robots balance?
« Reply #2 on: 26/09/2015 12:43:48 »
The current popularity of cheap helicopter drones is partly due to the ready availability of cheap micromechanical accelerometers - originally used to control airbags in cars, and now installed in every smartphone and in cameras with image stabilization.

This has made it much easier to control the drones - the drone keeps itself stable, and the "pilot" tells it where to go.

Presumably, a robot could have an accelerometer in its hand, to keep the coffee stable. However, it would also need to model the sloshing of the liquid, otherwise the most stable solution would be to keep the coffee cup right where the coffee was originally poured!
 

Offline wolfekeeper

  • Neilep Level Member
  • ******
  • Posts: 1092
  • Thanked: 11 times
    • View Profile
Re: Is there a sensor that helps robots balance?
« Reply #3 on: 28/09/2015 04:10:26 »
Actually, bottom weighted gimbles in cars and boats, or hanging a platform and putting the cup on it, can virtually stop cups from spilling, so it's not particularly difficult.
 

The Naked Scientists Forum

Re: Is there a sensor that helps robots balance?
« Reply #3 on: 28/09/2015 04:10:26 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums