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Posted by 7 on August 14, 2010, 4:37 pm
Joe Pfeiffer wrote:
>> If you are building something from scratch,
>> have you thought about humanoid type robots?
>> Apparently they only take 4 days to design and one day to make
>> these days. http://www.enemygadgets.com
>
> I would be very pessimistic about the odds of building a reliable
> humanoid robot that would be steady enough to carry a glass. Unless
> there's a compelling reason for humanoid, stick with wheels.
Wheels can't get over steps without spilling.
That is a very compelling reason.
Three legged humanoid robots - now there is something
worth thinking about especially if you can custom build it
in 4 days.
As to where you might put the third leg...
ok ok back up a bit...
..don't even think about where that 3rd leg could be fitted.
Instead seriously think about where it should be fitted.
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>
>
> Background:
> My former boss is a good guy and the most knowledgeable Linux
> person I know. He also has MS. He knew that I worked on robots
> and asked if I would build a robot to help him out. His right
> side has lost most motor control and he walks holding a cane in
> his left hand. The makes carrying a cup of coffee from the
> kitchen to his desk kind of a problem.
>
>
> Purpose:
> The purpose of the robot is to carry small, items from room
> to room in his house.
>
>
> Approach:
> We are likely to change our plans as we progress but our plan
> is currently to build a robot with two large drive wheels in the
> front and a caster in the back. The robot will be controlled
> using voice commands possibly through a Bluetooth headset. The
> robot will do autonomous navigation using webcams to pick up
> and locate 5 or 6 bit bar codes printed on 8.5-by-11 pages.
> Three landmark bar codes should be visible from anyplace in the
> house. Movement will use dead-reckoning for most of the time
> and the bar codes will be used as a check and for the final few
> inches. We will probably use Maxbotix sensors for collision
> avoidance. The robot's computer will just control the robot and
> the desktop PC will have the voice and image processing tasks.
> A WiFi link connects the robot to the desktop.
> A typical dialog might go something like this
> Frederic: "Robot!"
> Robot: "Robot ready"
> Frederic: "Station one!"
> Robot: "Station one. Confirm?"
> Frederic: "Confirm." --- the robot trundles off to station one