In multiple robots scenario, there are some process activities needs to be performed by only one robot. So do we have any robot locking mechanisms, so that the other robots will wait untill the specific activity has been completed by one robot.
There is no such locking mechanism.
You can use some sort of locking mechanism on your own. Like
-> Create a notepad file with a status “Completed”. This file can be accessible by other 2 robots.
-> In a while loop (look for this file and status).
-> Once the file is found, break the while loop and proceed with the next activities.