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Questions tagged [matlab]

MATLAB is a high-level language and interactive programming environment for numerical computation and visualization developed by MathWorks.

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2answers
325 views

Lego Mindstorms EV3 gyro sensor offset fix

I am currently working on a project for a Lego Mindstorms EV3 autopilot using Matlab/Simulink. Basically, I am using a closed loop control system with a PID controller for the control of the control ...
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2answers
222 views

Error in simmechanics matlab while doing inverse dynamics using custom joint

I am doing inverse dynamics in Matlab simmechanics in which position and orientation will be input to the end effector. But it shows error as below. Error originates in Mechanical block rob33/...
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1answer
14 views

Is system identification and a physics engine the same?

In the control theory the term “system identification” is used quite often. A typical sentence in a robotics oriented paper is that the author is trying to “build a model of a plant with matlab”. The ...
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1answer
25 views

Convert local coordinates of a moving IMU to global coordinates

I am trying to compare the performance of an IMU in motion against an optical tracking system. The IMU has an accelerometer and a gyroscope and gives output in the local IMU coordinate frames. The ...
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1answer
22 views

Libraries to simulate path planning in a dynamic environment for a 2D space

I need to simulate a path planning approach for a 2D space where the obstacles are moving. Initially, I need to implement probabilistic road map, D* lite, A* and Bug2 algorithm. The robot needs to be ...
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1answer
35 views

Image data fusion

I have three cameras separated by some distance, looking at a scene. I have calibrated them using checkerboard and I have their respective intrinsic parameters and their pose and rotation matrix, I am ...
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1answer
43 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 ...
0
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1answer
257 views

Baxter and Robotics System Toolbox

I am trying to setup a two way communication with the Baxter Robot using the Robotics System Toolbox from MATLAB. However, I am unable to move the arms or record a trajectory using the rosactionclient ...
4
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0answers
85 views

Matlab: Simulate received signals of sonar sensors

StackExchange community! I need the guidance what to use for the generation sensor data in Matlab. My purpose is to optimize the exploration process of unknown environment using the multi-robot ...
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0answers
193 views

Maintaining scale factor for essential matrix

I want to recover the trajectory of a vehicle using a monocular camera via the computation of the essential matrix between t-1 and ...
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0answers
505 views

Using 3D graphics animate the robot in Matlab GUI

I have seen this example ( http://in.mathworks.com/matlabcentral/fileexchange/14932-3d-puma-robot-demo/content/puma3d.m) in file exchange and want to do similar thing with 4 dof rootic arm. I follow ...
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0answers
337 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 ...
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0answers
130 views

Use MATLAB Compiler SDK generated package in KUKA Sunrise.Workbench

The MATLAB Compiler SDK allows to create a wrapper for a MATLAB function which can be accessed by Java software. Based on my understanding, KUKA's Sunrise.Workbench IDE uses most of the standard Java ...
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0answers
75 views

how to actuate pneumatic muscle by the signals received by emg sensors interfaced with raspberry pi?

My aim is to actuate a pneumatic muscle based on signals received by EMG sensors placed on the biceps. Is there any Matlab code which can process the received EMG signals and convert them into any ...
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0answers
8 views

How can I import openmv camera feed in MATLAB

I am planning to use openmv camera with wifi shield for my project. I want to import the video feed to MATLAB for further processing. As per my preliminary search it is extremely difficult and ...
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0answers
24 views

Robotics Toolbox Error using tb_optparse Too many input arguments

I tired to run the RRT example that can be found on page 239 of robot.pdf that can be found here ...
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0answers
12 views

How to determine sampling time, acceptable dead-time to reject output disturbances in FO- and SOPDT models?

I have a few questions regarding sampling time, dead-time, and output disturbance rejection. Given a typical first-order plus dead-time model: $$P = {Kexp^{-sL} \over T_ps+1}.$$ I would like to ...
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0answers
100 views

MATLAB ROS Communication Issue: The following nodes should be connected but aren't

I have both MATLAB and ROS installed on a SINGLE Linux machine. I am trying to publish data from MATLAB over a rostopic and echoing it in the terminal to view it. No matter, however, I play with URIs ...
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0answers
100 views

Pole placement gains tuning

given my control system I have found the region of the complex space that satisfies my specifications, determining poles position in 0.5 +- 0.2i. Now I want to find the gains that fix the desider ...
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0answers
306 views

Design of robot: inverse kinematics doubts + ARTE library on MATLAB

I am designing a robot that I need to model using ARTE library on MATLAB. The robot has 5 DOF with three prismatic and two revolute joints. Works like an inverse gantry robot, with a wrist for ...