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Questions tagged [ros]

ROS (Robot Operating System) is a free, open-source robot software framework developed by Willow Garage.

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Is it possible to list all runtime dependencies for ROS

I've read this link: http://wiki.ros.org/kinetic/Installation/Source and have known that the command ...
3
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1answer
81 views

Wait simulation time in a non realtime ROS simulation en python

I want to control a quadrotor with a Python script and run the simulation as fast as my laptop can, not only in real time. I've modified my world and now the simulation runs with 7-10 real time factor....
2
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1answer
25 views

How can I preserve a high framerate while using at least 1280x720 resolution on 2 USB cameras on the same computer?

To expand on this, I have a down-facing camera using the whycon ROS node on Ubuntu 16.04 Kinetic on a quad-core computer with 640x480@60fps MJPG video. I'm also using the ...
2
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1answer
321 views

How to implement RANSAC and kalman filter or particle filter algorithms with ROS packages?

I'd like to implement those algorithms by using ROS packages to solve one way the SLAM problem. I know that gmapping, Rviz, slam_gmapping and robot_pose_ekf (for extended kalman filter) could be ...
3
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0answers
578 views

ROS MoveIt!, virtual joints, planar joints, prismatic joints

I do have a robotic application, where a 7Dof robot arm is mounted on a omnidirectional mobile platform. My overall goal is to get MoveIt! to calculate a sequence of joint movements, such that the ...
2
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0answers
11 views

Fiducials in conjuction with AMCL

I'm having some trouble getting fiducials (using aruco_detect) to work alongside amcl. The goal here is to use normal amcl localization when a fiducial is not present, and to switch to localization ...
2
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0answers
36 views

How rational is it to use Intel Realsense for my affordable indoor autonomous robot?

Right now, I am using ESP32 for the motors and planning to add either Raspberry Pi Zero or ARM Cortex-M4 (STM32) and use ROS with Intel RealSense RGBD camera. How sensible is it? I am not expert in ...
2
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0answers
477 views

ROS Gazebo Odometry Issue

I am setting up a Gazebo model for use with the navigation stack. I have been reading the Navigation Tuning Guide and am confused about the lidar data in the odom frame. I would think that the tuning ...
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0answers
25 views

Convert sonar scans to Lidar scan file

Has anyone tried to map environments using Sonars or 1D ToF sensors? Since it's very difficult to implement such an algorithm from the scratch, I'm planning to use an existing ROS packages such as ...
1
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0answers
22 views

Writing IMU accelerometer data into as twist messages into cmd_vel

I am reading accelerometer data from the wiimote /wiimote/state topic. A sample of the data I'm working with is as follows: ...
1
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0answers
111 views

ROS: joint_state_publisher dies when used in remote launch file

I've been trying to run robot_state_publisher and joint_state_publisher on a remote TX1 running Ubuntu 16.04 and ROS Kinetic. When running the node from a local launch file (manually ssh into the ...
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0answers
41 views

Orientation problem between Gripper and Object ??

I am working on a pick and place project using ROS & MoveIt!, I wrote my own pick and place functions which generate grasp poses according to the pose of the object and then automatically picks. (...
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0answers
19 views

DSO_ROS is not giving right coordinates after taking turn (left/right)

Hi all , i got stuck in a problem and really need your help. Goal: I want to move little Toy vehicle autonomously (localization and mapping) and want to get distance covered by vehicle using DSO in ...
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0answers
43 views

ROS: TurtleBot3 motors runs 60 seconds after message is seen in topic /cmd_vel

I am running ROS Kinetic, on a Turtlebot3 Burger with a Raspberry Pi3. The goal here is to remotely control the Turtlebot from another Raspberry Pi. The remote controller Pi sends movement ...
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0answers
75 views

Which Kinect to use for robotic arm pick and place application with object detection?

I am building a robotic arm for pick and place application. The robot is going to recognize several objects using the RGB feed from Kinect (will use a model such as YOLOv2 for object detection, ...
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0answers
87 views

Kalman filter for slow ground vehicle with RTK

I have been using dual RTK receivers for my tractor projects. This gives me reliable position, heading, and tilt at low rates (10 Hz). I recently began working with an INS (an Advanced Navigation ...
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0answers
63 views

PixHawk I/II not working in 'Rover' mode (firmware issue?)… HELP!

We are working in a new agricultural rover, and we opted for PixHaw-II+ROS+MavLink platform as a good control alternative. However, our project is stuck as the PixHawk seems to work only when it is ...
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0answers
58 views

rtt-exercise building error-orocos-toolchain

I am using ros kinetic in ubuntu 16.04. My first error is: ...
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0answers
134 views

Getting started with motion planning

I have recently finished the coursera Motion Planning course and I am looking for a project to do, using ROS, OpenRave, Gazebo and similar tools. My project would be in the area of motion planning for ...
1
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0answers
121 views

Controls Project, Inverted Pendulum. Design issues

I am developing an inverted pendulum that uses a differential drive robot as base. The goal is to create a benchmark to practice my control using ROS, so I can implement what I learn on the Modern ...
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0answers
468 views

Controlling Pepper using ROS

I am trying to implement FastSLAM 1.0 and I am using sensory and control data acquired from Pepper via ROS to evaluate my implementation. However I am having major issues when I try and control Pepper'...
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0answers
1k views

Advise on ROS move_base costmap footprint not connected error

I'm using ROS indigo in my project and all the nodes and visualisation (Rviz) seems to be functional when I launch the program using roslaunch. Here are the sensors used in the scooter: Hokuyo Lidar ...
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0answers
715 views

ROS/Gazebo: URDF Error: No valid hardware interface element found in joint

I am fairly new to ROS and Gazebo. I have posted this question on the ROS/Gazebo forums, but they appear to be dead. I am using ros-kinetic and gazebo7.3 on Ubuntu 16.04. I have been following this ...
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0answers
121 views

Waiting for the r_gripper_sensor_controller/gripper_action action server to come up

I started to use ROS hydro (Robot Operating System) and roscpp. I tested some examples to move the gripper of pr2 in Gazebo (especially the code in : http://wiki.ros.org/pr2_gripper_sensor_action/...
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0answers
549 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 ...
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0answers
545 views

Acceleration formula for a differential steering robot

I have the formulas to derive the RPM's of each wheel from the robot's linear velocity. Now, I am trying to do the same thing for the acceleration (mainly angular acceleration). For linear ...
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0answers
227 views

running UWSim commands in ROS

Where can I find a good documentation about the UWSim in ROS. Actually having the source files is not enough and it is actually hard to follow all the functions. for example, how can I use these ...
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0answers
12 views

message_filters doesn't call the callback function

I'm trying to use the message_filters in order to subscribe to two topics. Here's my code ...
0
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0answers
582 views

Invoking “make cmake_check_build_system” failed

I am getting an error while building ROS workspace using catkin_make. I am not sure but it seems to be related with anaconda. Here are the details:- ...
0
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0answers
19 views

accessing serial and ethercat devices

I want to, ask is accessing all the serial devices/sensors eg. RS-422, RS-232 done in same way? And also is accessing all the devices in market with ethercat connection can be done in same way? For ...
0
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0answers
48 views

Reliable IMUs for ROS

I'm having problems in finding reliable IMU's in ROS. So far, I have tried the UM7 and the myAHRS+ with no luck. The first one, keeps resetting its magnetic reference and the second one works well but ...
0
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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
11 views

list of robotics framework running over xenomai

Can anyone tell me the list of robotics framework or softwares which can run on xenomai patched kernal like orocos? I was learning orocos this days in normal gnulinux kernal, but after i patch xenomai ...
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0answers
79 views

warning: target request linking to directory

Im trying to build rtt package of orocos-toolvhain by using cmake .. command inside build folder. when i do so i'm getting below warning. ...
0
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0answers
54 views

install orocos-toolchain in xenomai pathced linux?

Can anyone tell me the proper way or give me link to install orocos-toolchain on xenomai patche linux? I have patched xenmai with linux kernel in my system and anslo when i enter "xeno lateny" i an ...
0
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0answers
96 views

Required library XENOMAI NOT FOUND

I am following this tutorial to install orocos in my system with ubuntu 16.06, xenomai 3.0.5. But i'm getting error: ...
0
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0answers
67 views

undefined reference to KDL::Rotation::Quaternion

I am using orocos toolchain 2.9, ros kinetic, ubunt u16. ...
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0answers
28 views

controller-youbot: call ros::init() error

I am trying to run run the controller-youbot package from this link. i have build this package succesfully. Now when i try to run the deployer as u can see below it shows some error. i don't know from ...
0
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0answers
757 views

Unable to install ROS kinetic on Ubuntu 16.04

I am following instruction here. When I try to do the full install sudo apt-get install ros-kinetic-desktop-full I am getting this error:- ...
0
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0answers
15 views

Gazebo Force Model Incorrect

If I use the Gazebo7 UI to apply 100N of force along the X axis to a 1Kg sphere it should go flying, right? Creating a 1Kg primitive sphere and applying 100N through the UI makes it move 1m over 18 ...
0
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0answers
39 views

Error mgs during multi vehicle simulation with launch file

I followed the instruction as mentioned here. when I run the last command to launch environment works fine for default programme but when I added code for one more drone (UAV1 iris_3) and run ...
0
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0answers
75 views

Finding transformation matrix between two coordinate systems

This probably might be a trivial question but I'm kinda new to the scene. I've got an object in a simulation that is at its origin Ps[Xs,Ys](to keep things simple for me, I am considering a 2D space ...
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0answers
254 views

Kangaroo x2 and Sabertooth 2x32?

I have successfully used sabertooth 2x32 vai USB cable . The code is listed below ,sabertooth dip switch configuration is (On off on on on on 1-6). USB cable connected directly (No ttl cable or ...
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0answers
718 views

Ros, iai_kinect2 issues

here is what I did on Ubuntu 14.04 LTS running on a Toshiba Satellite, intel i7, nvidia with usb 3.0 and 2.0 ports. 1, 2, 3 refer to scripts found here Setup ros by running this install-ros.sh ...
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0answers
296 views

Defining a trajectory for a quadrotor

I' m looking for a trajectory generator (the algorithm doesn't matter, since I m going to write it using C++ ) that generates a trajectory (a parametric curve in space) defined point by point which is ...
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0answers
29 views

How to get the Turtlebot2 Gazebo simulation to produce Scan data

My Turtlebot2 Gazebo simulation is not able to produce Scan data. Steps to produce the problem: ...
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0answers
10 views

ROS callbacks' scope and objects' lifecycles

I am quite new to C++. I know that callbacks with return type of ConstPtr& are of boost::shared_ptr<const MsgType> ...
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0answers
29 views

Need help with drivetrain system for a 4-wheeled mobile robot Arduino and Ros

Looking at all these great, specific question in robotics stack exchange, I'm afraid I am a complete beginner at creating a robot and with ROS and arduino. My aim in the long term is to learn how to ...
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0answers
284 views

rostopic pub/echo not working on single pc system

I'm working my way through the tutorials in the wiki one by one and I and into some issues in the 'Examining the Simple Publisher and Subscriber' tutorial (found here). All my code is identical to ...
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0answers
673 views

ROS Joy node with Arduino

I'm working with ROS Indigo under Ubuntu 14.04, most the time following the tutorials. My purpose: read the ROS node Joy in Arduino Uno and do things when button are pressed (turn some led on). ...