ROS learning: defining complex service message types and passing images

1 Introduction:   there are many blogs on the Internet about creating client and server and defining service data types, but the service data types are generally simple. When the service data types include complex data types, such as images and point clouds, there are few relevant introductions. This blog post describes in detail how to u ...

Posted on Wed, 06 Oct 2021 21:53:32 -0400 by kidbrax

About the two kinds of ROS Time that will appear in ROS

During the experiment, it is found that ROS actually counts two ROS times One is the simulation time: sim time, which should be calculated only when the program is startedOne is the system time: system time, which should match the system time Many people may not know much about these two times. It should be considered in many places. The syst ...

Posted on Sun, 19 Sep 2021 12:02:41 -0400 by jonah