Dropping data at high frequency(50 -100 hz)

[zer1988]

Currently, I am using Vicon Bridge in my laptop to receive the data of 2 drones and then subscribe them in each of drones using ros. I programmed and saw the data of each of drones. While I test each of drones alone, my drones's performance is alright and the data I collected is on time. The problem only happens while I run two drones at the same time. The data I collected and stored in each drones dropped a lot (occasionally 400 ms to 1 s). This is proven by the poor performance of my drones. I tried to reduce the frequency from 100 hz to 50 hz. The dropping data is reduced but it is still not good as I expect. Do you know how I can deal with this problem. Many thanks,

[kdhansen]

Are you running two separate ROS networks with a master and vicon_bridge on each drone or a single master?

[zer1988]

Hi kdhansen ,
I just use one ROS network, one master and vicon_bridge installed on my laptop. Currently, i use launch file to run all of nodes in each drones and then subscribe the 2 topics produced by vicon bridge from two drones since the drones's processor is odroid XU4.
Thanks.