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1500 questions
4
votes
1 answer
Velocity Relation for Parallel Robots
In my course of "Advanced Robotics" with "Fundamental of Robotic Mechanical Systems" as the reference book I saw the following equation as the velocity relation for parallel manipulators such as the one depicted on the pic.…
Arvin Rasoulzadeh
- 155
- 6
4
votes
2 answers
Depth accuracy of the stereo camera
I am doing a project on calibrating stereo ZED camera and finding its accuracy and compare with the Manufacturer's accuracy of 1% at 1m depth accuracy.
For this purpose , the formula to calculate the depth accuracy is
$dz = (z^2 * de) / (f *…
user137000
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4
votes
1 answer
How to interpret and use values of an accelerometer
Currently, I'm building a quadcopter using Arduino. To make the copter able to stabilize I use an mpu6050 accelerometer + gyroscope.
I understand that I can get the angle of rotation by integrating the values of the gyro. I understand too that I can…
Raoul1234
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4
votes
4 answers
Has a robot ever taken a complete IQ test?
And if so, what was the highest score so far?
Some news articles suggest only parts of tests were aced.
Update since people censored this question and closed it. There was an AI that has taken an IQ test and scored similar to a 4 year…
Chloe
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4
votes
2 answers
What is the bicycle model for a dynamic robot?
I was asked this in a phone interview for a robotics job. Googling has not really helped. I assume it is some sort of state prediction model that can be used in a Kalman filter.
Can anyone give me a formal description? A link to a reference would…
somerandomdude
- 143
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4
votes
2 answers
How can I compare robot and human hands?
I want a comparison between human hands and robot hands, with respect to grasping and squeezing objects.
How can I perform such a comparison, using sensors, as one would with a benchmarking database? Is there a standard, or ready-to-use, system?
MİLKSOZ
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4
votes
2 answers
What is the difference between DC motor with encoder and DC with out encoder?
My question is: what is the difference between DC motor with encoder and DC without encoder? As long as I can control the speed of DC motor using PWM, for example on the Arduino, what is the fundamental difference?
ShehabAldeen
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4
votes
2 answers
Stereo Camera calibration with different camera types
I'm trying to perform stereo camera calibration, rectification and disparity map generation. It's working fine with normal sample data. However, I'm trying to use the dual cameras on an iPhone 7+, which have different zoom. The telephoto lens has 2X…
Davido
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- 4
4
votes
4 answers
Robots minimum distance
I am trying to implement a mechanism to make robots avoid being too close (Say in a distance less than d). I am not familiar with those systems and I have to implement a strategy to avoid robots being too close to each other. Could anyone recommend…
nikosdi
- 143
- 4
4
votes
1 answer
How to implement PD controller to this 2D planar quadcopter dynamics?
I want to code the dynamics of 2D planar quadrotor and than control it to drive it from one state to another.
Dynamics that I use is taken from the online course fiven by Vijay Kumar in Coursera as follows,
$
\begin{bmatrix}
\ddot{y}\\
…
freezer
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- 8
4
votes
2 answers
Suggestion for relevant non-complex simulator
I've recently started working on some localization algorithms like probabilistic road map and SLAM algorithms. What I'm looking for is a software that would help me in simulation for such algorithms. I started with pythons graphics.py and have now…
badrobot15
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4
votes
1 answer
Area coverage of autonomous underwater robot
I'm currently working on an autonomous underwater cleaning robot and would like your input on some navigation algorithms
Problem:
Wash the inside of big, open and filled tank, e.g. water storage tank (Figure 1), with an autonomous robot. The inside…
user2594166
- 41
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4
votes
1 answer
Stereo camera vs. one camera for player detection & ball tracking in basketball scenes?
There are a number of similar questions such as Monocular vs. stereo computer vision robustness for object detection, but none that address my question specifically.
My weekend project is to build a little robot that can detect and track players and…
Crashalot
- 161
- 5
4
votes
1 answer
Complimentary filter issues
I'm trying to implement the complimentary filter to get Euler angles using accelerometer and gyroscope data. Attached is the MATLAB code that I have along with a data set.
The data corresponds to moving the sensor from 0-90 degrees while attached to…
user6446313
- 43
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4
votes
1 answer
How can I control a multi-axis arm by giving "target middle link position" instead of the end effector?
I am using movegroup_interface with ros2-iron to control a 6-axis arm.
The link structure is as follows.
world
link1
link2
link3
link4
link5
camera-link
link6
hand-link
A camera is attached to the 5th link of this arm and I want to control…
user55147
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