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"Gmapping" using data from "Pointcloud to laserscan" gives error MessageFilter [target=odom ]: Dropped 100.00% of messages so far. Please turn the [ros.gmapping.message_filter] rosconsole logger to DEBUG for more information.

asked 2021-02-23 06:46:21 -0500

zzy2002 gravatar image

Hi, I am new to ROS, currently trying to convert the pointcloud2 topic from Airsim to laserscan using "pointcloud to laserscan" package and map it using "gmapping". I have successfully covert the pointcloud msg to laserscan but gmapping doesn't seems to work and give error msg as shown above. Please advise.

I'm using ROS melodic and running on Ubuntu 18.04.

Using rostopic list: /airsim_node/PhysXCar/car_cmd_body_frame /airsim_node/PhysXCar/collision_count /airsim_node/PhysXCar/imu/Imu /airsim_node/PhysXCar/lidar/VLP16_1 /airsim_node/origin_geo_point /airsim_node/parameter_descriptions /airsim_node/parameter_updates /camera/scan /clicked_point /initialpose /move_base_simple/goal /odom /profiler/data /profiler/index /rosout /rosout_agg /tf /tf_static

Cant post photo here, but i have check that the topic publish by pointcloud_to_laserscan is fine. The rqt_tf_tree shows that map -> odom and thats all. How do i point the odom towards base_link etc?

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answered 2022-08-30 15:01:19 -0500

Try gmapping again after updating your time and date settings in both robot's pc and the remote pc. If still, you're not getting transform from odom to base_link you can create a tf broadcaster from odom to base_link as in ros wiki tutorials or else you can use *cartographer_ros * to get transform from odom to base_link.

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Asked: 2021-02-23 06:41:19 -0500

Seen: 111 times

Last updated: Feb 23 '21