If you have a NESIS instrument shipped before October 2012 you will have to load transitional package to your NESIS, before you can use the new update file named Nesis-2.x.x.kus.
How to determine the update system version?
Go to the SETUP screen and choose software upgrade. If it shows the dialog as on the left you have the old update system and you will have to use transitional update.
After you make a traditional update the NESIS will reboot itself. After reboot you will be presented with the new update dialog. Please select Upgrade, now select Nesis-2.x.x.kus file from your USB key and press OK. The update is now completely automatic, just wait until you will see the NESIS again.
In fact, it does not make difference between a straight flight and a turn.
Each serious AHRS module, which is used in a real aircraft and where realistic performance is expected, must have the following sensors.
When MEMS sensors are used, the quality of the sensors is not good enough and additional sensors must be used for the long term stabilization of the solution. At least one of the following sensors must be used:
When both of them are used more stable and better solution can be obtained, of course. For even better solution additional sensors are recommended.
Practically any serious AHRS solution is based on “short term” and “long term” independent solutions, which are then combined into one solution using some kind of filtering algorithm. In vast majority of cases (just like in our module) a form of Kalman filtering is used. Each module producer have its own solution here and most of the “trade secrets” are hidden in the software implementation of the Kalman filtering and not in sensors.
Alternatively, GPS ground speed can be used, but error may be significant for slow flying aircraft in windy atmosphere (a turning glider, for example). Also, when GPS ground speed is used and GPS signal is lost, long term stability is compromised. With pressure sensors, this shortcoming is avoided.
Since straight flight is nothing but a turn with a zero bank, our solution does not distinguish between them and corrections are applied always when coordinated flight assumption are fulfilled. Thus long term stability is not compromised during a sustained turn.
Our AHRS modules were tested in our motor-glider (used almost exclusively for testing) and almost infinite number of turns were made. No performance degradation was ever noticed during turns.
C:\Nesis\nesis.exe. Note: The zip file containes some chart samples, hence the large file.
nesis.exefile. This should do the trik - run the Nesis application.
cd /home/your_user_name/Nesis-2.0/Nesis/to move to correct folder.
maketo build the binaries. The compilation may take few minutes. The result is stored in
/home/your_user_name/Nesis-2.0/Nesis/bin/Nesis.initext file. Open the file with a text editor (kwrite, kate) and change the
akrajncpart in the path to
Map_Folderentries. Save the file.
Copyright © Kanardia d.o.o. 2007-2013
Izdelava spletnih strani: Editor Studios