hector_slam and navigation stack
Hi I drive around a robot by joystick and record a bagfile, after I recorded the bagfile I start hector_slam (which starts hector_mapping) to create a geotiff map of the environment (this works fine)....
View Articleavoid obstacles using range/sonar ?
Hi. For my navigation simulation on Gazebo & Rviz I was using only a Lidar at first and it works just fine. Now I have to add 5 ultrasound sensors for navigation in Rviz, so I added...
View Articleamcl not publishing map -> odom
After trying to simulate turtlebot navigation on STDR instead of Stage, I always run into missing transforms problems and navigation cant start. I ran view_frames and put a link to the resulting pdf....
View Articlehow to change robot's movemetns directions in the odometry frame
Hello, I am trying to use the navigation stack into my project to add autonomous navigation capability to my robot. the xyz axis of my sensor is fixed in an orientation different than the odometry...
View ArticleHow to publish odometry from 3 wheeled omnidirectional robot
Hello, I'm trying to implement the ROS navigation stack in a 3 wheeled omnidirectional robot. I already made the map using RTABMap but now I'm confused in the 'Publishing Odometry Information over ROS'...
View ArticlePublish local plan as xy coordinates
Hi, I can obtain the /cmd_vel information for the local plan of robot to extract velocities and angles but is there usually a topic that I can subscribe to to obtain the local navigation goal in terms...
View ArticleOdometry data delay
I'm trying to implement the navigation stack but am having trouble with my odometry data. It seems to be delayed, judging by RVIZ: Once I tell the robot to move, it starts moving physically, but still...
View ArticleUnable to clear traces of obstacles on costmap
Hi all, I am having problems with my RPLidar and Costmap obstacle and inflation layer. When I first launch the file and RViz, the inflation and obstacles seem to inflate well. However, when I start...
View ArticleError /move_base->/move_base (/move_base/global_costmap/footprint)...
WARNING The following node subscriptions are unconnected: * /twist_to_motors: * /cmd_vel * /move_base: * /mobile_base/sensors/bumper_pointcloud * /move_base/cancel * /rviz: *...
View ArticleHow to plot the result of navigation on 2D
We can look at the path and pose of robot with Rviz but I don't know how to look at the result on 2D graph. 2D_Plot_Tool seems to be available during navigation. The web is this (...
View ArticleNavigation stack with hector slam
Hi, I got rplidar A2 instead of hokuyo and hector slam is working super fine for me,I am a beginner in ROS, I need to make a navigation stack and run differential drive motor? can anybody help.
View ArticleVirtual Tracks for Navigation
I'm working on a differential drive mobile base and have navigated successfully with `move_base` and `teb_local_planner` and the `global_planner`. The next navigation behaviour I would like to achieve...
View ArticleHow can i control my Real-car drive type robot.
I have successfully run my robot with http://wiki.ros.org/jackal_navigation move_base package. But there is one problem the my car does not have differential drive capabilities . I tried to change...
View Articletrajectory cost on base local planner
So i have been digging through the code of base local planner trying to understand how the robots plans its trajectories. What i found was, as its stated in the API documentation the **cost function**...
View ArticleMini-Turty robot get stuck on corner when navigating
I created a map using a Rhoeby Dynamics Mini-Turty II robot and am using that to do navigation. It works most of the time, but sometimes it gets "stuck" on corners. As far as I can determine, it seems...
View ArticleRobots always make extra rotations in automatic navigation
I am learning auto-navigation in the simulator, I set a target point in Rviz that is very close to the starting position. The robot then begins to spin and the console tells me that he is clearing the...
View ArticleROS move_base costmap not connected error
I'm using ROS indigo running on 64bit Ubuntu 14.04 LTS. In the project, the nodes and visualisation (Rviz) seems to be functional when I launch the launch file I written. Here are the sensors used in...
View ArticleNaviation Costmap layers. How to make robot move on the right.
Hi all, i'm new in robot navigation, and right now i'm testing the turtlebot3 in simulation. what i'm trying to achieve is to make the robot move always on the right, which is the same meaning as the...
View ArticleWhy is the laser scan used my most robotic even when the point cloud is present
Hi, I have been seeing that all most all the robots use the laser scan for the navigation instead of the point cloud data, is there any specific reason for the same. The navigation package does support...
View ArticleNavigation stack, no laser
Hello, I have put in place a (custom) mobile robot with a drive controller (taking a desired twist and outputting required wheel velocities) and joint controllers which allow me to actually get the...
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