Closed Russ76 closed 2 years ago
I'm using the MDEK1001, with an Android tablet, and ROS is on a Ryzen 8 core HP laptop with Ubuntu 20.04 and Noetic.
This data shows the strange response. Some updates come several per second, others are 10 seconds apart!
From the documentation and Decawave forum, I see that "stationary detection" may be turned off for the Tag, and this will cause the 10 Hz update rate to continue, and the Tag will not switch to the "energy conserving" 0.1 Hz update rate. This can be done under Tag settings on the Android App. I will try this next. It seems to have the "energy conservation" settings much too aggressive by default. That causes it to often run much too slowly. Updating position every 10 seconds would never work for a rover robot! Or for a flying robot, for that matter.
First time to get this location info into ROS! However, only three nodes show up, when network has 4 anchors, 1 tag, and 1 listener. Does this program require the Android tablet be left running, or is it just for setting up the uwb network? Sometimes the tracking is very slow, and at other times it zips along. I don't know what is affecting this or causing this! Have you found the same thing, with unreliable speed response?
Regarding the first question, the andriod apps is required only for the setting up of the UWB network as far as we tested for far.
I think the unreliable speed response in your case is due to the stationary detection using IMU is "ON" on your tag device as you mentioned correctly in your other comment. In our case, we specifically turn "off" the stationary detection in our usages using this repo at the moment. Otherwise, the tag device would need active movements all the time.
I will close this issue since the main question is kind of solved. Further discussions on the related issues are addressed in #2
First time to get this location info into ROS! However, only three nodes show up, when network has 4 anchors, 1 tag, and 1 listener. Does this program require the Android tablet be left running, or is it just for setting up the uwb network? Sometimes the tracking is very slow, and at other times it zips along. I don't know what is affecting this or causing this! Have you found the same thing, with unreliable speed response?