Frequent dropping of localization message

[ncs-shaunelim]

Hi,

OS: Ubuntu 20.04 ROS: Noetic LidarLoc: 2.2.2.50R sick_lidar_localization: 5.4.0 Processor: i7-8559U RAM: 8Gb Performance mode: Enabled

I have followed the instructions and have succeeded in the following:

• Generate map using SMET
• Transfer map into LidarLoc
• Link lidar data into LidarLoc
• LidarLoc able to localize on map
• Run sick_lidar_localization (ROS) and able to see topics and read data output.

Problem: I am subscribing to the localization_result message. It seems that the message intermittently stops publishing and resumes in a certain pattern.

• Start sick_lidar_localization.launch
• Pattern for first 20-30 seconds: publish 2secs, stop 2 secs, publish 2secs, stop 2 secs etc.
• Patten after: publish 10secs, stop 3secs, publish 10secs, stop 3secs etc.

I turn on verbose, and the printout of udpMessageReceived reflects the same pattern.

Is there some parameter that I am setting wrongly?

[ncs-shaunelim]

Did some digging. Turns out that libcurl-dev was not installed properly.

Instructions given in the README.md needs to be updated as libcurl-dev cannot be installed through

sudo apt install libcurl-dev

Running the above throws error:

Reading package lists... Done Building dependency tree
Reading state information... Done Package libcurl-dev is a virtual package provided by: libcurl4-openssl-dev 7.68.0-1ubuntu2.15 libcurl4-nss-dev 7.68.0-1ubuntu2.15 libcurl4-gnutls-dev 7.68.0-1ubuntu2.15 You should explicitly select one to install.

After installing, problem is resolved.