WildCrustacean
  • Member for 9 years, 2 months
  • Last seen more than 8 years ago
Why are Mars rovers so slow?
19 votes

One reason is because of the communications delay between Earth and Mars. The round trip time for signals from Earth to Mars is several minutes, which means that you can't teleoperate the robot in ...

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What was the earliest concept of a robot?
5 votes

If you are interested in real and fictional robots (for concepts), the CMU Robot Hall of Fame may be useful.

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I'd like to use gesture based input for my robot. What are the pros and cons between the Xtion Live and the Kinect?
4 votes

More driver details: OpenNI or freenect can be used with the Xtion and the XBox Kinect. The "Kinect for Windows" requires the Microsoft SDK and drivers. However, there is also a bridge to go ...

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Single camera vision and mapping system
4 votes

It's hard to say exactly what they were doing, but the terms you may want here are "optical flow" and "egomotion". Sounds like there may have been some feature detection and matching (something like ...

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Is there a tool for building and analysing robots (kinematics, control) visually?
3 votes

The Actin toolkit is the only one I know of that sounds like what you want. It integrates with SolidWorks to provide the kind of analysis you are talking about. Other people may know of other ...

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Is an accelerometer sufficient to detect displacement, or do I need an INS?
3 votes

You can theoretically use just an accelerometer for determining motion, but it may not be accurate enough to achieve your goals. The big problem with accelerometers is drift over time (i.e., errors ...

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How to perform this reference system transformation?
2 votes

So you need to find the rotation that gets you from the first coordinate system to the second, and then combine that with the translation to get the final transformation matrix. Since you have ...

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Quadruped Learning Simulator
2 votes

This wouldn't cover the robot simulation, but the OpenCV Machine Learning Library might be useful for evaluating learning algorithms and training parameters to download to the robot. It includes a ...

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Why do Mars rovers designers prefer wheels over tracks?
2 votes

This may not be the biggest reason, but I would imagine that for space vehicles like this, wheels are easier to stow for launch and then deploy for landing.

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Why are the IRB 1410's servos running even when the joints are not moving?
Accepted answer
1 votes

The motors in ABB robots have integrated brakes that are engaged when not energized. They hold the position of the joint and prevent the arm from falling if power is lost. The flex pendant enable ...

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Numpy alternatives for linear algebra and kinematics in python?
Accepted answer
1 votes

OpenCV is available with python bindings. It's not geared at strictly numerical applications, but it might be sufficient. It includes some matrix math and machine learning algorithms. I can't say ...

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Decision trees for solving 2D inverse kinematics?
Accepted answer
1 votes

I changed the training set generation to uniformly sample the joint space instead of using random samples, and also restricted the range of the second joint to prevent multiple solutions and ...

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Robotics Trends
1 votes

This isn't a published study, but many people use the Technology Readiness Level (TRL) system to assess the state of technologies. Granted, it doesn't really tell you when a technology might reach a ...

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