Robotics Stack Exchange
Robotics Stack Exchange

Questions tagged [mobile-robot]

A robot which is capable of moving from one place to another, usually of its own volition.

717 questions
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Do "nano bots" (that can fit inside the human body) actually exist?

I was wondering, do we have real nano bots, like the ones in the movies? I think we have bots which can move through the blood vessels, am I right?
ATOzTOA
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What are the reasons for not having autonomous robots in our daily activities?

The fact is that the more I search the less I find autonomous (real) robots in use. The companion robots are all toys with limited useless functionality. Whenever there is a natural disaster you don’t see operational search and rescue robots in the…
Dr D
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Seeking dirt cheap, wheeled, programmable robot

I was playing the old "confuse the cat with a flash-light" game, when I thought that I might like to program a confuse-a-cat robot. Something, probably with tracks, which can right itself if he flips it over, and which I can program to move randomly…
Mawg says reinstate Monica
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Shape Memory Alloy wire for robot gripper arm actuation: How to vary grip pressure?

For a robotic gripper arm we are designing for factory floor use on very small components, we propose to use electrically activated Shape Memory Alloy (SMA) wire harnesses for actuation. The device being designed is akin to Pick & Place machines…
Anindo Ghosh
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Fastest maze algorithm for robot

I'm planning on programming a prebuilt robot to solve a maze as fast as possible. The robot has forward obstacle sensors (no side sensors) and 3-axis accelerometer. I'm planning on using the wall following algorithm. Is this the fastest possible…
user1159
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Adhesion for a heavy wall-climbing robot

I have come across a number of methods for developing wall-climbing robots. Suction Chemical Adhesion Gecko like hair adhesion Electroadhesion Which method would be the best for heavy robots (5kg+)? Are there any other methods that I have missed?
Tom Bamber
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Would the strength and speed of a robot skeleton be a danger to its wearer?

Expanding upon the title, I am querying the use of robotic skeletons to augment human strength and speed. If such a robot had the capacity for example to bear weight 5 times heavier than the wearer and move its robotic limbs twice as fast as the…
MICHAEL TAYLOR
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Forward kinematics: Why ω should remain same?

Can anyone please explain me these lines found on page 5 of Kinematics Equations for Differential Drive and Articulated Steering by Thomas Hellström? Note that plugging in $r$ and $v$ for both left and right wheel result in the same $\omega $…
mouse
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Transformation a robot in 2D?

I'm watching this video at 36.00 min. The guy gave an example but I'm not sure what is the problem. He stated that if we want to move a robot then we should to the following for inhomogeneous case, $$ x' = Rx + t \\ R = \begin{bmatrix} cos\theta…
CroCo
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Are robotic pollenators being designed?

With the bee hive collapses, growers are desperate for pollenation options. Is anyone working on swarms of tiny flying robots to augment the bees? They could look for a certain color, poke around inside the flower for a moment, and move on to the…
Fred Daniel Kline
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Do diagonal mecanum wheels require the rollers to cross the center of the robot

I'm currently in the process of making some changes to my robot to use mecanum wheels. The kinematic models I've seen assume the 45 degree roller from one diagonal wheel to the other, crosses the center of the robot and I've also seen some frame…
PNash
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2D Transformations as Affine Matrices

I have found the following exercises about 2D Transformations as Affine Matrices. I am stuck at the second exercise that goes as follows: The 2D pose of a robot w.r.t. a global coordinate frame is commonly written as $x =(x, y, \theta)^T$, where…
Gabriele
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What is the difference between a holonomic and an omnidirectional robot?

I have seen the usage of the term "omnidirectional" in robotics, but I have not found a (precise) definition. In the chapter Omni-Directional Robots from the book "Embedded Robotics", it is stated: In contrast, a holonomic or omnidirectional robot…
user10072
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Malfuction in motors using L298N

I have purchased the undermentioned robot chassis with DC motors supported with plastic gears from a local store. There is a 3A battery holder and when I connect robot to that and put it on the ground both the motors working fine and smooth. But…
Padmal
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Pledge algorithm for maze solving robots

i saw this maze, and tried to apply pledge algorithm on it. But i am not able to solve this maze using this algorithm. what am i missing? i want to ask, what i am doing wrong? PLEDGE ALGORITHM: in both cases we don't get to exit. you can read about…
nishantbhardwaj2002
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