Difference between revisions of "Advantech Robotic Suite/ROS DOMAIN ID"

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= Introduction =
 
= Introduction =
<span style="font-size:larger;">ROS 2 uses for communication is DDS. In DDS, the primary mechanism for having different logical networks share a physical network is known as the Domain ID. ROS 2 nodes on the same domain can freely discover and send messages to each other, while ROS 2 nodes on different domains cannot. All ROS 2 nodes use domain ID 0 by default. To avoid interference between different groups of computers running ROS 2 on the same network, a different domain ID should be set for each group.</span>
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<span style="font-size:larger;">ROS2 uses for communication is DDS. In DDS, the primary mechanism for having different logical networks share a physical network is known as the Domain ID. ROS2 nodes on the same domain can freely discover and send messages to each other, while ROS2 nodes on different domains cannot. All ROS2 nodes use domain ID 0 by default. To avoid interference between different groups of computers running ROS2 on the same network, a different domain ID should be set for each group.</span>
 
<br><br>
 
<br><br>
<span style="font-size: larger;">The ROS2 Suite offers a convenient method for modifying the ROS domain ID (default is 0).</span>
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<span style="font-size: larger;">The Advantech Robotic Suite offers a convenient method for modifying the ROS_DOMAIN_ID (default is 0).</span>
 
 
  
 
= Prerequisite =
 
= Prerequisite =
  
Supported Version: ROS2 Suite v1.3.0 or higher.
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Supported Version: Advantech Robotic Suite v1.3.0 or higher.
  
 
Supported Platform: x86_64
 
Supported Platform: x86_64
 
  
 
= How to =
 
= How to =
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=== Set ROS_DOMAIN_ID&nbsp; ===
 
=== Set ROS_DOMAIN_ID&nbsp; ===
  
<span style="font-size:larger;">Script for set ROS_DOMAIN_ID&nbsp;</span>
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<span style="font-size:larger;">Script to set ROS_DOMAIN_ID in range 0~101.</span>
 
<pre>$ cd /usr/local/Advantech/ros
 
<pre>$ cd /usr/local/Advantech/ros
 
$ ./change-ros-domain-id.sh
 
$ ./change-ros-domain-id.sh
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</pre>
 
</pre>
  
&nbsp;
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=== Note ===
 
 
=== Set ROS_DOMAIN_ID by manually ===
 
  
Please refer to [[ROS2_Suite/Q&A#How_to_set_ROS_DOMAIN_ID_in_host|Q&A : How to set ROS_DOMAIN_ID in host]]<br/> &nbsp;
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If you want to set ROS_DOMAIN_ID in host or container by manually, please refer to [[Advantech_Robotic_Suite/Q&A#How to set ROS_DOMAIN_ID|Q&A : How to set ROS_DOMAIN_ID]]
 
 
=== Set ROS_DOMAIN_ID in docker container manually ===
 
 
 
'''Step1: Open docker-compose.yml'''
 
<pre>$ cd /usr/local/Advantech/ros/container/docker/docker-compose/<docker_container_name>
 
$ vim docker-compose.yml
 
</pre>
 
 
 
'''Step2: Set ROS_DOMAIN_ID=<your_domain_id> in docker-compose.yml'''<br/> <span style="color:red;">Note: If you want to follow the host's ROS_DOMAIN_ID variable, please set ROS_DOMAIN_ID=${ROS_DOMAIN_ID}</span>
 
 
 
.
 
.
 
.
 
    environment:
 
    - ROS_DOMAIN_ID=<span style="color:red;"><your_domain_id></span>
 
.
 
.
 
.
 
 
 
'''Step3: Restart container for update environment variables of docker container'''
 
<pre>$ cd /usr/local/Advantech/ros/container/docker
 
$ ./stop.sh <docker_container_name>
 
$ ./launch.sh <docker_container_name>
 
</pre>
 
 
 
'''Step4: Confirm whether the variable is modified successfully in container'''
 
<pre>$ docker exec -it <docker_container_name> bash
 
$ echo $ROS_DOMAIN_ID
 
</pre>
 

Latest revision as of 04:09, 5 March 2024

Introduction

ROS2 uses for communication is DDS. In DDS, the primary mechanism for having different logical networks share a physical network is known as the Domain ID. ROS2 nodes on the same domain can freely discover and send messages to each other, while ROS2 nodes on different domains cannot. All ROS2 nodes use domain ID 0 by default. To avoid interference between different groups of computers running ROS2 on the same network, a different domain ID should be set for each group.

The Advantech Robotic Suite offers a convenient method for modifying the ROS_DOMAIN_ID (default is 0).

Prerequisite

Supported Version: Advantech Robotic Suite v1.3.0 or higher.

Supported Platform: x86_64

How to

Set ROS_DOMAIN_ID 

Script to set ROS_DOMAIN_ID in range 0~101.

$ cd /usr/local/Advantech/ros
$ ./change-ros-domain-id.sh
ROS2 set ROS_DOMAIN_ID

Confirm whether the variable is modified successfully in host.

$ echo $ROS_DOMAIN_ID

Confirm whether the variable is modified successfully in container.

$ docker exec -it edge-ros2-foxy bash
$ echo $ROS_DOMAIN_ID

Note

If you want to set ROS_DOMAIN_ID in host or container by manually, please refer to Q&A : How to set ROS_DOMAIN_ID