we just installed our underwater GPS System on our BlueROV2 and everything is working (so far, we can tell). But there is a question that came up in our team and we can’t find a suitable answer on the webpage or in the forum. The Underwater GPS System from Waterlinked is only equipped with an A1 locator, without the depth sensor. How is the depth information transferred from the ROV to the Waterlinked system? In the documentation of the UGPS System they say, that the depth information needs to be provided to the system if an A1 locator is used. Did the Ardusub Software on the Pixhawk or the QGroundControl Software take care of this information transfer?
Another thing we noticed while trying out the system is that the displayed position information in QGroundcontrol has a small delay (maybe 1-2 sec) to the actual position in the test tank. In another forum post I read, that this is the effect of a fusion filter. Which sensor information are fused and how do we get the raw position data?
If anyone has information to the above questions or know a webpage where we can find the information, please let us know.
Thanks in advance