combine two 2D LiDAR scan into one

[Ramune6110]

二つのlaser scan(複数のlaser scan)を一つに統合する

以下のパッケージが使えるかも

https://github.com/danieldugas/laser_scan_combiner

[Ramune6110]

参考になりそうな資料

https://www.theconstructsim.com/ros-qa-how-to-merge-data-from-two-different-lasers/

https://medium.com/@amritgupta1999/merging-data-from-multiple-lidar-s-in-ros-e890fb60cbbf

http://k3174r0.hateblo.jp/entry/2016/07/05/004811

[ju-mingyue]

Hello，Ramune ， I would like to ask whether the two lidars that have been converted by the ira_laser_tools tool are also activated together when building maps? At present, I have encountered a problem. When two laser signals are running together when building a map, the signals will drift, but when I choose a laser radar, the tf coordinates will be inaccurate. At the same time, when I run two lidars, obstacles cannot be added to the local map of autonomous navigation, so the obstacle avoidance function cannot be realized.