route_admin_panel

About

The Route admin panel is a web user interface for managing routes of ROS based mobile robots.

It allows to:

• Define destination points
• Save robot position as destination point
• Send destination point to
  move_base
• Upload custom map
• Set a sequence of destination points

The Route admin panel is built as a Node.js application. On one side it is interfacing with ROS topics, while on another side it presents a frontend for managing robot destinations.

Installation

Install Node.js:

curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt install -y nodejs

Create workspace and clone dependency repositories, it may happen that you already have it done, in that case, skip this step:

mkdir ~/ros_workspace
mkdir ~/ros_workspace/src
cd ~/ros_workspace/src
catkin_init_workspace 
echo '. ~/ros_workspace/devel/setup.sh' >> ~/.bashrc

git clone https://github.com/husarion/husarion_ros.git
git clone https://github.com/husarion/rosbot_description.git

Clone

repository:

cd ~/ros_workspace/src
git clone https://github.com/husarion/route_admin_panel.git

Install dependencies:

cd ~/ros_workspace/src/route_admin_panel/nodejs
npm install rosnodejs express socket.io quaternion-to-euler math3d multer yargs
npm install

Build workspace:

cd ~/ros_workspace
catkin_make
. ~/ros_workspace/devel/setup.sh

How to use

Panel comes with prepared launch files for

,

gmapping

,

node.js

server and all other required components. Depending on your ROSbot version, you can start it with:

• for ROSbot 2.0 with Mbed firmware:

  roslaunch route_admin_panel demo_rosbot_mbed_fw.launch
  

• for ROSbot 2.0 PRO with Mbed firmware:

  roslaunch route_admin_panel demo_rosbot_pro_mbed_fw.launch
  

• for Gazebo simulator:

  roslaunch route_admin_panel demo_gazebo.launch
  

• [deprecated] for ROSbot 2.0 with hFramework:

  roslaunch route_admin_panel demo_rosbot.launch
  

• [deprecated] for ROSbot 2.0 PRO with hFramework:

  roslaunch route_admin_panel demo_rosbot_pro.launch
  

Once all nodes are running, go to web browser and type in address bar:

ROSBOT_IP_ADDRESS:8000

You need to substitute phrase

with IP address of your device.

You should see interface like below:

ROS API

Below are ROS interfaces used by the route admin panel:

Topics

Topic	Message type	Direction	Description
/tf	tf2_msgs/TFMessage	subscriber	Transform from map to base_link frame.
/map_image/full/compressed	sensor_msgs/CompressedImage	subscriber	Map converted to grayscale image and compressed in PNG format.
/map_metadata	nav_msgs/MapMetaData	subscriber	Metadata for map.
/map_zoom	std_msgs/Int16	publisher	Current value of map zoom.
/plan	nav_msgs/Path	publisher	Currently analyzed path from make_plan service.

Services

Service name	Service type	Role	Description
/move_base/make_plan	nav_msgs_service/GetPlan	client	Get proposed path for given points without sending goal to navigation stack.

Actions

Action name	Action type	Role	Description
/move_base	move_base_msgs/MoveBase	client	Set destinations for navigation stack.

Map to image conversion

RAP is using additional node

for conversion from

nav_msgs/OccupancyGrid

to

sensor_msgs/CompressedImage

from

husarion_ros

package. The

map_to_img_node

subscribes map as

nav_msgs/OccupancyGrid

and publishes it as grayscale image with full resolution or cropped dependeing on current map zoom.

Topic	Message type	Direction	Description
/map	nav_msgs/OccupancyGrid	subscriber	Map source
/map_zoom	std_msgs/Int16	subscriber	Current value of map zoom.
/map_metadata	nav_msgs/MapMetaData	publisher	Metadata for map.
/map_image/full	sensor_msgs/Image	publisher	Map converted to grayscale image.
/map_image/tile	sensor_msgs/Image	publisher	Map cropped according to zoom and converted to grayscale image.

Using panel from any network

In case you would like to manage robot destinations outside of local network, you could use Husarnet for secure connection with your robot.

All Husarion devices comes with Husarnet preisntalled, if you are using your own device, install Husarnet according to installation guide.

If you do not have a Husarnet account, create it and log in to Husarnet dashboard.

In Husarnet dashboard, click Create network button, you will get a dialog:

Type

as network name then click Create button.

Go to your device and register it in Husarnet network by executing in terminal:

sudo husarnet websetup

You will get a registration link as a response, open it in web browser:

• In Name for this device provide
  my-rosbot
• In Add to network dropdown menu choose
  route_admin_demo
• Check Change device hostname checkbox
• Click Add device to your account button

You will be redirected to network summary view:

Click device name to open its configuration:

Check ROS master checkbox.

Optionally you can also check Make the Web UI public if you want to make panel accessible for anyone knowing device address.

Go back to your device and start panel with the same launch file as for local network.

Once the panel is running, you will notice new button WebUI next to your device address in Husarnet dashboard, use this button to view panel.

Wait! But what about real peer-to-peer connection?

To get access without need to log into any server, you will have to install Husarnet client also on your laptop, procedure is the same as for any other device.

Then register your laptop in Husarnet network the same way as you did with robot.

On laptop open browser and in address bar type:

ROSBOT_HUSARNET_ADDRESS

ia a value that you can find in Husarnet dashboard in device settings.

In the end you will be able to access

from any network using a secure peer-to-peer connection: