ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

emilyfy's profile - activity

2019-06-25 05:58:42 -0500 received badge  Student (source)
2019-05-20 01:30:08 -0500 marked best answer robot_localization asking for map to odom transform

So I just recently migrated from robot_pose_ekf to robot_localization as I heard it's better. I'm fusing data from wheel odometry, imu and laser_scan_matcher as odom0, imu0 and pose0 respectively. I followed the instructions in configuring the parameters and set the frames as such:

map_frame: map
odom_frame: odom
base_link_frame: base_link
world_frame: map

The documentation tells me this should make the ekf_localization node publish the transform from map to odom if the publish_tf param is set to true. Sure, it does, but I also keep getting this warning:

[ WARN] [1521163510.296212370]: Transform from odom to map was unavailable for the time requested. Using latest instead.

And once in a while this warning:

[ WARN] [1521163517.010447912]: Failed to meet update rate! Took 0.035404531000000002972 seconds. Try decreasing the rate, limiting sensor output frequency, or limiting the number of sensors.

Why would it be looking up the transform of what it's supposed to be broadcasting instead? It's still doing its job, but I'm just concerned somewhere it ignores some data because of this warning and curious why the warning comes up in the first place. Thanks in advance for any insight on the matter!

Here's my TF tree: image description

2018-08-23 20:29:09 -0500 answered a question How to run ROS if your default python version is 3.x via Anaconda

I found the solution on this issue on github. Since the Anaconda path is the one interfering with ROS, you can simply co

2018-07-02 05:44:44 -0500 received badge  Famous Question (source)
2018-06-04 15:30:03 -0500 received badge  Supporter (source)
2018-03-19 12:08:48 -0500 received badge  Notable Question (source)
2018-03-17 19:09:11 -0500 commented answer robot_localization asking for map to odom transform

Yeah, I do have a node doing that. It seems like I have a different problem from the one you referred me to though, my o

2018-03-17 15:43:38 -0500 edited question robot_localization asking for map to odom transform

robot_localization asking for map to odom transform So I just recently migrated from robot_pose_ekf to robot_localizatio

2018-03-17 15:40:58 -0500 received badge  Popular Question (source)
2018-03-15 20:27:30 -0500 asked a question robot_localization asking for map to odom transform

robot_localization asking for map to odom transform So I just recently migrated from robot_pose_ekf to robot_localizatio

2018-01-26 22:25:54 -0500 answered a question Cannot find node robot_pose_ekf ?

I ran into the same problem because I had downloaded the source codes into my catkin workspace and compiled it. Deleting