Pose array's variance converge(navigation stack, amcl)
Hi, I'm using nav stack with my robot. I'd like to set a final variance of a robot pose array. I set amcl's parameters "update_min_a" and "update_min_d" to 0.0 because I'd like to have the robot...
View ArticleThe size of particlecloud in PoseArray Message
Hi, I wrote a node that subscribes to amcl particlecloud. I would like to write a callback function that process all the Pose array elements. How can i get the size of the particlecloud or specifically...
View Articleuse navigation stack with different method for localization
Hello everyone, I am pretty sure that it is possible to use the navigation stack ([http://wiki.ros.org/navigation](http://wiki.ros.org/navigation)) with another localization method than AMCL...
View ArticleCan't navigate and use camera at the same time
I am working on a project that requires both navigation and object recognition modules. The problem I have is that modules work when they are run individually but as soon as I try to run them...
View Articlenavigation with husky on Rviz and Gazebo : robot sliding and odom problem
Hello, I am trying to navigate in a simple closed world with a husky robot, using move_base. I mapped the world with hector_mapping. When I navigate with move_base, the /encoder topic published by the...
View ArticleUsing PointCloud in AMCL
Hi, I am using the AMCL filter from ROS packages and I have configured it following the instructions on the website. I am wondering if it is possible to change the sensor input from the laser to a...
View Articlenavigation stack get crash
Hi, I am working with the navigation stack and when I command a goal (by rviz) which is inside an obstacle I get the following error. This is something I have begun to experience recently (after...
View ArticleHow to localize a robot in a known map
Hi everyone, I'm new in this world of mobile robots and ROS. Currently I wanna know if there are techniques implemented in ROS for self-localization or localization of a robot in a known map that it's...
View ArticleGetting the navigation goal from RVIZ
I am able to get the initial pose of my turtlebot using : `rospy.wait_for_message('initialpose', PoseWithCovarianceStamped)` `rospy.Subscriber('initialpose', PoseWithCovarianceStamped)` This allows me...
View Articleamcl localisation on custom made bot
Hi! This is part of my final year project work. I am facing multiple problems and i need help. I am aiming to build a robot that can localize itself on a known map and navigate to certain given points...
View ArticleCan turtlebot_simulator be loaded with a PGM map?
Hello, I have a Turtlebot 2 on ROS Hydro, and I am working on an algorithm for smart autonomous navigation through a known map. I have a map of the building I wanted to test in PGM form, obtained from...
View Articlerepeating the simulation
Hi, I made a localization simulation in ROS using stage and amcl running from launch file. I would like to repeat the simulation for 1000 times, is there an easy way, tools or tricks to do that? BR Anas
View ArticleWhich is each frame?
I have a frame tree in which I have /odom and /map frames. My EKF publishes in /odom frame. My AMCL algorithm (I think) creates a transformation between /odom and /map frames. Gazebo gives me the...
View ArticleExclude topic from namespace
Hello, I have a Turtlebot running the navigation stack and a workstation that runs the corresponding map-server. The amcl node is launched in a namespace so that all published and subscribed topics get...
View ArticleProblems in path planning and amcl
I am using gazebo to simulate a SummitXL. The mission is to explore an area. To do that I have developed an algorithm that generates points equally distributed around the area. I use these points as...
View ArticleHow to predict the behavior of Autonomous Navigator of ROS?
Hi, 1. I am specifically interested in predicting the next move of autonomous navigator of ROS. 2. What should be the packages, I need to look at. I have gone through [this...
View ArticleHow to navigate without localization
We're using **turtlebot_gazebo** now and every time we **navigate**, it uses **amcl**. However, in our task,robot just needs to **avoid the obstacles and follow the target person in a small range of...
View Articleamcl not reacting to /initialpose topic
Hi folks, I've set up navigation stack for my robot and all the frames seem to be correct (according to my tf_three, and frames...map->odom->base_link, etc). if I move the robot, I can see it...
View Articleturtlebot position fluctuates
Dear All, Please have look on this video: http://youtu.be/MiTcy0rHY78 I'm running turtlebot gazebo simulator, but as you see the pose of robot has lots of error and fluctuates I have run the following:...
View ArticleRunning robot_pose_ekf and amcl
We are trying to use the [Leg Detector](http://wiki.ros.org/leg_detector) package on the Turtlebot to detect people and then send goals to the navigation stack to follow a person. Separately, running...
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