search

ros-drivers / velodyne

ROS support for Velodyne 3D LIDARs
http://ros.org/wiki/velodyne
Other
646 stars 643 forks source link

Keep poll timeout() while wireshark can receive the data and lidar can be ping #505

Closed TZECHIN6 closed 1 year ago

TZECHIN6 commented 1 year ago

Please complete the following information:

Describe the bug Not sure is it a driver bug or what... I have bought so many velodyne lidar (at least got 8 lidars of VLP-16). So I do successfully setup the lidar in before.

However, for the one I encountered the issue was that I can ping and wireshark capture the package without issue. The driver installation for ROS2 also looks fine, however it keeps pull timeout(), I have also tried to use veloview to see it still no lidar scan output.

To Reproduce Steps to reproduce the behavior:

  1. Install as usual
  2. git clone the repo -b ros2 into own workspace
  3. rosdep install
  4. colcon build
  5. source it
  6. ros2 launch ...

Expected behavior Expected to receive lidar scan.

Additional context Here's the config, as I know most of you would think this is a ip or port issue... I also think so but seem not. LiDAR (VLP16):

PC:

Ping works fine and I can see the UDP package from wireshark (length=1206)

Any idea I can debug this issue? as this is the first time I encounter this, I solved this similar issue in before by setting the correct ip and port, but not this time....

TZECHIN6 commented 1 year ago

Solved: make sure your power adapter is 12V 3A. I got a 2A and its not working

TZECHIN6 commented 1 year ago

I need help on this issue, the situation is very unstable.

I can no longer launch the velodyne driver as it keeps [velodyne_driver_node-1] [WARN] [1681360614.646165429] [velodyne_driver_node]: Velodyne poll() timeout. I have checked the IP setting in both PC and VLP16 LiDAR, it can be pinged.

Anyone has solution how to debug this issue? As everything seem make sense to me, no clues to debug this timeout issue.

TZECHIN6 commented 1 year ago

Not sure the root cause, I somehow get the lidar point back with all the same setting and codes.

  1. Head to the LiDAR web interface
  2. Set destination IP as 255.255.255.255 (previous is set to 192.168.1.100 which is my PC's IP)
  3. Click "set" and "save config"
  4. Now LiDAR can be seen
  5. If you want to use back destination IP
  6. Head back to the web interface and set the destination IP to 192.168.1.100 and click set and save config
  7. Now LiDAR can be seen

To be honest... this is quite silly.