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2021-09-05 11:22:26 -0500 | marked best answer | save position of robot online slam? Hi I want to save the current position of robot while the navigation with online slam is running and then i can set those saved position as 2d goals in navigation with static map! i can get current position of the robot in map frame when i am running navigation stack with static map by subscribing to amcl/pose topic. but in navigation with online slam amcl does not publishes any point. So how can i get robots current position in online slam? thanks! |
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2018-06-27 02:46:53 -0500 | marked best answer | Sleep command in launch file? Hi, Is there any way to make a launch file sleep between executing different nodes and launch files? Also is there any way to write some logs from launch file ? Thanks! |
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2017-08-01 09:54:25 -0500 | asked a question | Custom analyzer group Custom analyzer group Did anybody try to write a custom AnalyzerGroup by inheriting it? Is it even possible? Here is m |
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2017-05-22 06:54:01 -0500 | commented answer | PoseStamped as flexbe app userdata I already solved it, but thanks for your complete descriptions, I'm really looking forward to more tutorials. ;-) |
2017-05-22 06:52:10 -0500 | marked best answer | PoseStamped as flexbe app userdata I am very new to the flexbe app and now I want to use the 'PublishPoseState' in my behavior, but I don't know how can I define a state machine user data with PoseStamped Type, Is there any example or tutorial for that (obviously defining a string message is very simple)? |
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2017-05-19 05:04:26 -0500 | asked a question | PoseStamped as flexbe app userdata PoseStamped as flexbe app userdata I am very new to the flexbe app and now I want to use the 'PublishPoseState' in my be |
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2016-01-11 06:03:26 -0500 | marked best answer | calculating covariances of robot's odometry ? Hi we are using RosAria for our pioneer robot, it has an odometry topic named pose, but the values of its covariances are always zero. how can i calculate covariances for odometry message? Actually i want to give RosAria to robot_pose_ekf for combining robot's odometry with IMU data but robot_pose_ekf does not accepts zero covariances! |
2015-11-26 03:28:09 -0500 | marked best answer | Simple Navigation Problem Hi, I have integrated a Pioneer3AT mobile robot with ROS 2d navigation stack. It's scan matches are completely correct all the time, but sometimes when i send it a navigation goal, it keeps rotating for a few seconds. specially when it is moving through a door. also the planned path for the robot is very near to the walls, I know that there is a lots of parameters in navigation stack to solve this problems, but i don't know which one is the right one! Any body has experienced these kind of problems ? |
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2015-04-27 09:17:29 -0500 | marked best answer | base_link to base_footprint transform ? Hi, I am trying to use robot_pose_ekf for my navigation stack, I have done every thing according to this thread but I faced a problem about my transformations! Robot_pose_ekf is publishing a base_footprint tf, but i dont know how should i connect base_link tf to base_footprint tf. what is the relation between them? |
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2015-01-18 06:27:52 -0500 | asked a question | xacro.py generates empty urdf file I am using following command to convert *.urdf.xacro to *.urdf in ROS indigo,ubuntu 14.04: also content of a.urdf.xacro(just for test): and the content of generated urdf: I have faced this problem in two different machines. any idea? |
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2014-10-22 05:01:34 -0500 | marked best answer | problem in transform from map to base Hi, when i am setting up a navigation stack for my pioneer robot but when i am running move_base.launch after receiving a static map from map_server its writing below warning: "Waiting on transform from /base_footprint to /map to become available before running costmap , tf error." currently my tf_tree is something like this: odom_combined---> base_footprint ----> base_laser |
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2014-09-12 15:34:02 -0500 | commented answer | Optris package Did you test hydro branch of optris_drivers in ROS indigo? since hydro and indigo have very similar build infrastructures i think it would be compiled in ROS indigo either. |
2014-09-11 14:33:21 -0500 | answered a question | Optris package I have used this package for my optris pi200 thermal camera, it's very stable and easy to use, Please explain more about your problem, as far as i remember, it is not too difficult to build this package. Just like other ROS packages, use "catkin_make" to build the pacakge, and also follow instructions in the optris_driver ROS page. |
2014-09-08 09:53:37 -0500 | asked a question | rosserial and wireless communication Hi, I am using APC220 Radio Communication Module on my arduino atmega2560, in order to communicate with my computer wirelessly. i have written a simple publisher/subscriber node for my arduino using arduino ide and ros_lib, it's works fine using usb to serial cable, but when i'm using APC220(which is actually acts as an serial interface, conntected toRX/TX pins), i am getting following errors: I am almost sure about my hardware settings and baud rates, because it's works with a single publisher, my problem is a node with subscriber and publisher working simultaneously. Is there any tips about using rosserial_arduino with wireless modules? Is there any body who has experienced APC220 modules with ROS and Arduino? |
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