MID360:The point cloud is not displayed about livox_ros_driver2

[finedcl]

do not use the virtual machine

[kosmonauta144]

Hi Guys,

I had similar problem and here is the fix which helped me.

Livox lidar seems to have IP adress isue, it does not have static adress or it's not configured with the .json file.

I connected the livox mid360 lidar to mikrotik router or router with ip scanner. I scanned subnetwork and get this adresses

192.168.1.5 is my computer
192.168.1.144 is second device connected which is Livox

so I changed IP adress of the lidar in the .json file to 192.168.1.144 and it works

no TF data still remains, but the point cloud is received. I hope it helps you.

I though that json file is made to set IP adress for the lidar, but it has to be set to static through router or switch to work. I hope it helps.

[FPSychotic]

It is in every guide ,you need put the last two numbers of the lidar s/n

…

On Thu, 21 Sept 2023, 08:36 Georg Flick, ***@***.***> wrote: Somewhere in the docs I found out, that the initial IP address is set to 192.168.1.100 + last two digits of serial number Hi Guys, I had similar problem and here is the fix which helped me. Livox lidar seems to have IP adress isue, it does not have static adress or it's not configured with the .json file. I connected the livox mid360 lidar to mikrotik router or router with ip scanner. I scanned subnetwork and get this adresses [image: image] <https://user-images.githubusercontent.com/52200790/269524908-dcf31ecb-d035-4bd7-ac49-13ba6d1b0a26.png> 192.168.1.5 is my computer 192.168.1.144 is second device connected which is Livox so I changed IP adress of the lidar in the .json file to 192.168.1.144 and it works [image: image] <https://user-images.githubusercontent.com/52200790/269525196-29384cd0-7aff-45d3-93b0-9f6dcba5cbf9.png> no TF data still remains, but the point cloud is received. I hope it helps you. I though that json file is made to set IP adress for the lidar, but it has to be set to static through router or switch to work. I hope it helps. — Reply to this email directly, view it on GitHub <#23 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AITQOVCMTPGKC5LGMVLZMT3X3PU6JANCNFSM6AAAAAAVIG3RXI> . You are receiving this because you commented.Message ID: ***@***.***>

[Prabuddhi-05]

I have connected the radar mid360 in the virtual machine, run rviz_mid360.launch, the initialization is successful, but there is no point cloud displayed in the rviz interface, frame is livox_frame, the warning message is: No tf data. Actual error: Fixed Frame [livox_frame] does not exist. and run rostopic echo /livox/lidar，data is shown.

I'm encountering this issue in Ubuntu 22.04 while working with ROS 2 Humble. However, when I run 'ros2 topic echo /livox/lidar,' no data is displayed. Is there a solution for this?

The issue was resolved by turning off the firewall to ensure that some of the ports were no longer blocked.

[arvrschool]

I have the same problem in ubuntu..

[naveenkumar2208]

@finedcl Did it solve for you?

[naveenkumar2208]

@arvrschool Did it solve for you?

[finedcl]

@naveenkumar2208 yes,standalone ubuntu systems can display point clouds

[FPSychotic]

in standalone windows needed deactivate firewall, in ubuntu standalone in x86 and Arm64 will show the pointclouds, nut livox viewer2 wont work in arm64. in the ros config file there is ports , I would check that ports are available in your system and ip address

[LeonardoGuevara]

I have a similar problem, I also get the warning message is: No tf data. Actual error: Fixed Frame [livox_frame] does not exist.
But in my case when I run rostopic echo /livox/lidar, no message is published. I'm running in in Ubuntu 20.04. Any solutions?

[oscarpoudel]

I also have a similar problem as Leonardo . I tried installing it on both jetson nano as well as intel cpu ubuntu 20.04 but the point cloud is still not showing in Rviz.

[FPSychotic]

I assume you got it work in livox SDK , but you cannot in ROS. The best way to test the lidar i running Fast-lio 2 with the mid-360 specific launch. If you run only the driver to test, be sure you use the rviz launch. If still don't show points, be sure you set global_frame as " livox_frame", maybe you need write it at hand and be sure the topic is pointcloud2 format and called /livox/lidar.
For sure the drivers works, but also you need setup properly the IP address in the lidar nodel

[oscarpoudel]

I checked it with Fast Lio too its the same. The cloud points are not showing. I have set the ip in the config file to that of my system and lidar ip to as specified in the Manual.
The issue is shown in the figure.

[georgflick]

Somewhere in the docs I found out, that the initial IP address is set to 192.168.1.100 + last two digits of serial number

Hi Guys,

I had similar problem and here is the fix which helped me.

Livox lidar seems to have IP adress isue, it does not have static adress or it's not configured with the .json file.

I connected the livox mid360 lidar to mikrotik router or router with ip scanner. I scanned subnetwork and get this adresses

192.168.1.5 is my computer 192.168.1.144 is second device connected which is Livox

so I changed IP adress of the lidar in the .json file to 192.168.1.144 and it works

no TF data still remains, but the point cloud is received. I hope it helps you.

I though that json file is made to set IP adress for the lidar, but it has to be set to static through router or switch to work. I hope it helps.

[Prabuddhi-05]

I have connected the radar mid360 in the virtual machine, run rviz_mid360.launch, the initialization is successful, but there is no point cloud displayed in the rviz interface, frame is livox_frame, the warning message is: No tf data. Actual error: Fixed Frame [livox_frame] does not exist. and run rostopic echo /livox/lidar，data is shown.

I'm encountering this issue in Ubuntu 22.04 while working with ROS 2 Humble. However, when I run 'ros2 topic echo /livox/lidar,' no data is displayed. Is there a solution for this?

[dpbnasika]

did the no TF data issue fixed or someone can able to fix ?, i now try to add the tf and it does not display the axis and imu axis also it is not recognized as topic in rviz topics tab, but i can able to see the imu topic in terminal. Any help is appreciated.

[Prabuddhi-05]

Dear sir, As of now, I haven't attempted to solve this specific problem. I will let you know if I come across any potential solutions. Thanks and best regards, Prabuddhi

…

________________________________ From: DP ***@***.***> Sent: Monday, January 8, 2024 12:14 AM To: Livox-SDK/livox_ros_driver2 ***@***.***> Cc: Prabuddhi Wariyapperuma (26619055) ***@***.***>; Comment ***@***.***> Subject: Re: [Livox-SDK/livox_ros_driver2] MID360:The point cloud is not displayed (Issue #23) did the no TF data issue fixed or someone can able to fix ?, i now try to add the tf and it does not display the axis and imu axis also it is not recognized as topic in rviz topics tab, but i can able to see the imu topic in terminal. Any help is appreciated. — Reply to this email directly, view it on GitHub<#23 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/A4PWJL6DLL45OLJH4YVUKDDYNLUJXAVCNFSM6AAAAAAVIG3RXKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQOBQGEZTSMJRGE>. You are receiving this because you commented.Message ID: ***@***.***>