Questions tagged [simulation]

Robotics simulators represent the world in software. They range in complexity from the simple and only operate in a top-down 2D world, or very complex with photo-realistic rendering and physics modeling.

20 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2 votes
0 answers
65 views

Strategy for 3D path planning over large distances with kinodynamic constraints

I was hoping to pick your brains about a problem that even after much reading has left me baffled. My Application: For the sake of simulating underwater scenarios in very large environments (up to ...
1 vote
0 answers
46 views

What inertial information can I get from a SolidWorks object for simulation in MuJoCo?

MuJoCo needs me to enter the position of the inertial frame and the diagonal of the inertial matrix, (if I understand correctly). I'm not sure how to get this information from SolidWorks. This object ...
  • 113
1 vote
0 answers
25 views

How to do a relative rotation of a cuboid such that the longest edge is upright?

I am using pybullet. I have a cuboid with half extents [4,2,1] corresponding to x,y,z dimensions. I rotate this cuboid around the z world axis theta and also translate it by [0, 0, .65]. I take a ...
  • 151
1 vote
0 answers
1k views

Matlab Simulink showing following errror: kinematic constraints cannot be maintained

I'm using simulink to get joints torque by giving motion input. I create very simple CAD model in solidworks to learn simulink. Simulink model is showing in below figure. During update it shows no ...
1 vote
0 answers
37 views

On robocup 2d simulation league

For some experiments, I need to have source code of a robocup 2d simulation team. Where can I find that? Is there any online test bed for this league for testing algorithms?
  • 133
1 vote
0 answers
906 views

Gazebo laser plug-in fails to publish scan results

I have added hokuyo laser plug-in to mu urdf file. I successfully launched the robot in gazebo and done required changes to visualize it in rviz. I didn't get any error but the laser scan results are ...
0 votes
0 answers
2 views

Gazebo Garden plugin and nested models?

I have a problem that I'm not able to solve with Gazebo Garden. I wrote a System plugin that handles a stereo camera, I need a plugin to interface the simulator with our SDK. Differently from Gazebo ...
  • 101
0 votes
1 answer
24 views

Definition of Collision Frame and Inertial Frame in PyBullet or Other Simulation Software

I am doing simulation of my robot with PyBullet now, but I guess this question applies to other simulation software as well. When I am using the functions ...
0 votes
1 answer
40 views

Simulate GPS IMU With Quadcopter Swarm?

I have multiple drones work in swarm formation, i made the quadcopter model and the swarm one. Until now i have the swarm moving in a formation leader-follower and track a predefined trajectory based ...
0 votes
0 answers
14 views

What is the format and required content to define a Joint trajectory using the RoboAnalyzer simulator?

I'm trying to learn how to use the Roboanalyzer simulation tool to model and then display the torques required to pivot a 2 DoF arm. ( [http://www.roboanalyzer.com/][1] ) I see that the tool has a ...
0 votes
0 answers
31 views

Robot Trajectory Control with MATLAB

I want to make a MATLAB (Simulink) simulation of the robot model shown above. However the input should be the sinx(t) function as a trajectory. How could I integrate this sinx(t) function in Simulink ...
0 votes
0 answers
87 views

In MuJoCo I have a model with one hinge joint made of two meshes that I can't get to actuate

The joint just opens 180 degrees and shakes in place a little. What am I doing wrong that would make this egg slicer open and close smoothly? ...
  • 113
0 votes
0 answers
40 views

Compute absolute position of obstacle in V-Rep from proximity sensor measurement

all. I am trying to construct the map of the environment by using the measurements from the proximity sensor in V-Rep. I have absolute position of the robot. So, I know the X1, Y1 coordinates of the ...
  • 3
0 votes
1 answer
130 views

Simulating sensor readings based on an existing Alan Variance Analysis

My goal is to model an accelerometer and a gyroscope based on real hardware. I understand deterministic errors like bias and scaling but the different types of non-deterministic errors are difficult. ...
  • 41
0 votes
0 answers
149 views

How can I modeling a simple haptic interface system to obtain results similar to the paper “Time-Domain Passivity Control of Haptic Interfaces”?

I am trying to simulate the experiments in the paper "Time-Domain Passivity Control of Haptic Interfaces", Hanaford and Ryu, 2002, IEEE transactions on robotics and automation vol .18, No1 about the ...
0 votes
1 answer
966 views

Gazebo: SetPosition() function in the Joint class doesn't set the joint position and returns false sometimes

I am trying to initialize the positions of my robot using Gazebo Plugins. SetPosition() function of the Joint class is supposed ...
  • 1
0 votes
0 answers
32 views

How to add some more feature for this simulink model

After some research Robotic hand simulation in MatLab? After some motivation, I have tried to go inside Matlab Simulink and was able to do this :- https://drive.google.com/open?id=...
0 votes
0 answers
109 views

Compile webots for Python 3.6 for Windows

I would appreciate if someone could assist me in compiling webots source for Python 3.6 to allow me and others to use TensorFlow with it. I already tried but apparently there is something not ...
  • 141
0 votes
1 answer
142 views

Simulating a robot

I try to simulate a robot, but with a GUI. I can make a simulation using pyopengl to simulate the movement of robot, but I cannot make the GUI with that. I need to make it easier to simulate, analyze, ...
0 votes
1 answer
141 views

How can i convert Torque input into PWM signal?

I am working on a project in which i have a robot working with stepper motors. I wish to control this robot with simulink. How can i convert the input( Analog sin input ) into the PWM that can be used ...