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Open-RMF Plugin Error

I am learning Open-RMF and have been trying to create my own demo. So far I did everything right but cannot integrate the slotcar plugin, which is used to navigate ...
Alperen Keser's user avatar
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Launching TB3 Cartographer causes map origin to be shifted in RVIZ

I am creating a multi-robot cartography and routing system using ROS2 Humble. When I launch each robot's nav stack, everything looks good. As soon as I launch the cartographer_ros node, the map on ...
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Examples of Multi-rotors (Quadrotors) in Ignition-Gazebo?

I am new to Ignition Gazebo. I want to have multiple(4) multi-rotors(quadrotors) following a trajectory. Is it possible to have any example repos to see this behaviour and understand the code ...
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Exector Error while using multithreading

I am currently working on migrating a ROS1 project to ROS2, I am using a multithreaded executor to have concurrent callbacks, I have an error I am unfamiliar with. Does anyone have had this error? if ...
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Two Turtlebot3 using slam toolbox to create their own map in a Gazebo World

This is my first post in this forum. I am new in the field and currently working on a project. My goal is to have two turtlebot3 in a gazebo world and allow them to create their own map using slam ...
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Python Multi-Robot ROS 1 environment: defining multiple robots in class form (each with their own ROS node) and accessing their class objects?

I'm interested in building a multi-robot learning environment using a simulator such as Gym for the environment and ROS 1 for handling communication between robots. I'd like to set up my environment ...
tt32440bzsr's user avatar
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1 answer
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Multi-robots control in ROS2 Humble

I am trying to spawn two robots with the goal of controlling them independently. I have made changes to the empty world launch file in turtlebot3_gazebo package to try and spawn two robots, for now I ...
tyraex's user avatar
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Unusual Robot Behavior in RViz when Launching Multiple Robots in Gazebo and ROS 2

I am currently facing an issue when attempting to launch two robots simultaneously in Gazebo Classic using ROS 2. In my setup, the first robot (Frank's Emika) is successfully launched in a Gazebo ...
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MoveIt!2 Multiple Controllers for the Same Joints

Multi-arm question: I have a setup with a few Panda arms, and I have created a move group (+controllers) for each of the arms as well as a panda_multi_arm which is ...
yoraish's user avatar
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When launching world and robot models, initial attempts succeed, but subsequent launches fail

The first one or two launches of this launch file work without issues, but subsequent launches fail. I am generating two robots in a world, specifically a ridgeback and a turtlebot3 waffle. I suspect (...
就走吧's user avatar
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Multiple Robots in Webots and Control Them independently with ROS2?

I am following the tutorial of Setting up a robot simulation in Webots (Basic) which is in ROS2 humble documentation. Here I have a .wbt world file, .urdf file according to the tutorial. I have added ...
RAMISHA ANJUM's user avatar
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Best approach to build a basic multi robot controller

I'm a beginner in ROS. I've 2 robots which run ROS Kinetic (Those robots are commercially available and I've access to the system). I've searched about the Multi robot control systems and found RMF, ...
Aimkiller's user avatar
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Is there any way to know if tmux is slow for a multi-robot experiment and if there are alternatives?

I'm trying to run a multi-robot SLAM experiment, which is similar to that of Kimera-Multi, that uses tmux to run numerous shell and ROS commands. I'm on ubuntu 20.04 and ROS noetic. I'm running on an ...
GShim23's user avatar
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Unable to localize multi robot due to amcl not receiving scan data

Hello guys i am working on multi robot. All works well. I am able to get topics for different robot for their namespaces . I am also able to echo the scan topics , provide the map by the map-server ...
Davies Ogunsina's user avatar
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2 answers
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Multi robot /tf with namespaces for tf or with frame_prefix? What is the right way to do it? ROS2

Hello, I want to simulate 2 turtlebots with their own slam and navigation together in the same Gazebo ROS2 Foxy simulation. For that, I want to separate them, so that they do not interfere with each ...
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1 answer
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Dynamic publishers, subscribers and callbacks

I am trying to create a multi-robot system (MRS), where multiple robots are communicating with each other over ROS2, Galactic, Ubuntu 20.04. Currently, I'm only running this in simulation, but I have ...
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ROS2 - Multi-robot launch files with variable parameters

Hello, I am currently working on a multi-robot simulation package and I would like to spawn multiple robots with different parameters using launch files. In general, I have a few ideas to implement ...
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1 answer
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Unable to transform object from namespaced frame 'ns/base_link' to planning frame 'base_link'

I have a two robot system that is prefixed in separated namespaces so each robot can work independently, but they exist in a single workspace in a connected tf_tree....
sniegs's user avatar
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Spawning multiple robots in Gazebo and assinging namespaces

In my application I want to spawn multiple robots in the Gazebo world and also keep namespaces for each robot in order to use tools as SLAM, navigation or exploration for each robot individually. ...
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1 answer
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The tf transform between base_footprint of robot1 and base_footprint of robot1 have little errors on multi-robot systems?

Hello,everyone!Right now I'm doing some some simulations about multi-robot systems on Gazebo and what I have achieved are: (1)I can launch multiple robots(for instance,2 robots) on Gazebo (2)I can use ...
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1 answer
6 views

How to make ekf localization node for multiple ridgeback robots

Hi all, Now I'm running with Ubuntu 16.04, ROS kinetic (ROS1) I also working with my Gazebo multi ridgeback robots by modifying the ridgeback_simulation But the problem is I don't know how to let EKF ...
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1 answer
11 views

Adding a namespace to robot frames

I am running multiple qbots in a multi-master network, and I have been able to successfully run individual robot topics under a given namespace. (eg: qbot1/mobile_base/commands/ .... , qbot2/...
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1 answer
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freenect /camera/depth/points topic not published under a group namespace tag

Hi! I am currently running Octomap on my Qbot using ROS kinetic and Ubuntu 16.04. (My plan is to run ROS navigation stack using the built octomap and create a multi-robot system) Because of the multi-...
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1 answer
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Unique namespace for a robot using the launch file

Hi! I am trying to develop a multi-robot system using Qbots. For that I need to assign different namespaces to each robot in the network. (As Qbot1, Qbot2 etc.) As my previous question, and the ...
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1 answer
3 views

How does a TB3 robot get the coordinates of others?

There are three TB3(A,B,C) robots. Each robot has an independent coordinate system. The movement of A needs to be changed according to the location of B and C. How does A get the position of B and C (...
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1 answer
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Issue when using rosbag to record concurrent messages from multiple devices to a single topic

Hi All, I've been struggling with this issue ever since upgrading our kinetic/indigo systems. Brief outline of our software/hardware; 7 laptops (3 on indigo and 4 on kinetic), 3 turtlebot2 platforms ...
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1 answer
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How to install foreign_relay package?

I would like to install wifi_comm (http://wiki.ros.org/wifi_comm) in ROS Lunar Desktop-Full distribution and I need to install foreign_relay (http://wiki.ros.org/foreign_relay). Someone knows how do ...
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1 answer
26 views

Why tf trees for multi-robot system not showing?

Hi all, I have been building a simple multi-robot system for 3 days referencing to patrolling_sim, which wrap all necessary nodes for a robot in a group tag. I am ...
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1 answer
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Questions on adapting an algorithm to work with multiple state-space configurations and releasing to the ROS community

Hello, After successful development of an initial version of a multi-robot localization and object tracking algorithm, we have the desire to make it accessible to the ROS community. I have some ...
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1 answer
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Increase thread count of Asyncspinner? (Multi-threading)

Hey guys, I have a world_node which offers a service to register_new_robot. Once called, the service creates a new C++ object ...
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1 answer
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Ubuntu Trusty ros-indigo-adhoc-communication package

Hi The ros-indigo-adhoc-communication Ubuntu package seems to be incomplete. For example, it doesn't seem to install the adhoc-communication node. Using adhoc_communication after installing this ...
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1 answer
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Multi-robot exploration with explorer and adhoc_communication?

Hi , i am trying to setup a multi-robot-exploration like shown in the video of the explorer package (http://wiki.ros.org/explorer). Did someone successfully get that setup running? (explorer + ...
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1 answer
4 views

Multi robot collision avoidance

I found a package for ROS which solves the multi robot collision avoidance problem: http://wiki.ros.org/multi_robot_collision_avoidance The instructions seem so simple, but yet something is missing in ...
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1 answer
7 views

workstation multi-robot with rviz

Hi there ! We've got a problem ( my classmate and I) about the multi-robot supervision on Rviz. We would like to see 2 turtlebots on the workstation Rviz but we don't know if we have to do a .launch ...
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1 answer
2 views

Difference between two transform broadcasters

What is the difference between the following transform broadcasters in a multi-robot simulation: ...
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1 answer
3 views

Simulation of Navigation_2D/nav2d package in Gazebo

Hello, I am currently trying to implement the navigation_2d package using Gazebo with a Husky Robot Model and am facing several problems. Is there anyone out there who has managed to successfully ...
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1 answer
5 views

nav2d autonomous multi robot exploration

Hi everyone, I started using the nav2d package and did the four tutorials with success. In the 3rd tutorial you can make a robot autonomously explore an unknown map. In the 4th, you can move two ...
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1 answer
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Multi Robot Mapping in Navigation_2d Tutorials

The tutorials for the navigation_2d package are provided here. The first 3 work flawlessly and, being a beginner, they have taught me a lot. However, the next 2 tutorials have very little ...
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1 answer
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why the rocon_app_manager is not launched?

Hi, I am learnig ROCON which is an exellent example of multi-robot system. I am trying to run multinav_concert in ROCON's Hydro repository. As the multinav.concert file says, firstly a rviz ...
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1 answer
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Problem with multirobots navigation

I'm trying to do a multirobots navigation in Gazebo simulator using two turtlebot. I put the two turtlebot in Gazebo and I see in correct mode the robots in the environment with a correct ...
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1 answer
3 views

move_base changes clock of mapping node

Hi, i am using stage to simulate two robots. Mapping runs, but if i start move_base for the first roboter, its tf stops working. So i researched a little bit and found out that if i start move_base ...
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1 answer
3 views

multirobot interaction using turtlebot

Hello everybody, I have a very basic question regarding multi-robot interaction. How can I make two robots share the same roscore? My basic job is to interact between two robots via some topic. The ...
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1 answer
2 views

how to publish the same node on different laptops under one master node

Hi all, Here is my setup. I have a multi-robot task where i setup an ad-hoc network and set the master uri to one of the 3 laptops. 2 laptops on the 2 robots and 1 laptop is in the middle. I have 2 ...
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1 answer
12 views

Multi Robot systems framework in ROS

Hi Community, We have been working at a multi robot coordination project here at Carnegie Mellon. The framework is completely ROS based right from the robot controller to communication, front end and ...
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1 answer
5 views

ROS in multi-robot applications?

Greetings, In my knowledge, most development in ROS is for single robot operations. Is ROS being used in any multi-robot applications? Any open-source initiatives which focuses on multi-robot systems? ...
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1 answer
9 views

Launching different robots in Gazebo at the same time

Hi guys, I'm trying to write a launch file to simulate two different robots in gazebo at the same time. I've tried many things and changes in my launch file but I can get it working. Sometimes I get ...
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1 answer
1 view

simulate marker on stage

I am trying to simulate multi-robot behavior os stageros. I want my robots to be conveyed a message when they reach a marker(anytype fiducial or bar code). player-stage which has support both for ...
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3 answers
6 views

Multi robot simulation in ROS

Hello everybody, I have a problem with multi-robot simulation. I have a launch file that launches two xacro files ...
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1 answer
3 views

how to deal multiple erratic robots in gazebo?

Hi, I am stuck in a problem. I want to use two/three erratic robots in gazebo. I have got help from link here. I am successful in spawning two erratic robots. I am using this two_robots.launch ...
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1 answer
11 views

best practice for multi robot simulation

Hi, Could anybody let me know what is the best practice for multi-robot simulation in ROS ? I want to simulate both an aerial vehicle and a ground vehicle in gazebo, and control them for the missions ...
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