When this is done, the controller should show that it is searching for the drone, and once it finds it, usually after a few seconds, the drone and controller will automatically pair. Once both the drone and controller are powered on, you should ensure they are both in ‘discovery mode’ or ‘pairing mode’ so that they can detect each other and make a connection. To connect your Sky Viper journey controller to your drone, you will need to first power on the drone, then the journey controller. How do I connect my Sky Viper journey controller to my drone? This will ensure that your drone is functioning correctly and is able to fly correctly and safely. It is important to note that whenever you reset your Sky Viper drone, you will need to re-calibrate it by performing the calibration steps in the app. This will wipe all of the drone’s settings and reset it back to its original state out of the box. In the app, access the More menu and select the “Factory Reset” option. If there are still any overall issues with the drone, it could be a good idea to also factory reset the drone. Select the “Reset Flight Settings” option and confirm the action to reset all flight settings. To reset the drone’s actual flight settings, access the Flight Settings menu within the app. Access the settings menu and reset the drone’s connection to the app. Once the drone is powered on, launch the Sky Viper app associated with the drone. The “EKF Status” has changed to “good”, meaning the vehicle is ready to fly in GPS modes.With the battery replaced, power the drone back on and ensure it is connected to a stable Wi-Fi connection. Note that at the time this image was captured the speed accuracy was above 1.0, but it had been below 1.0 for 10 seconds, so the EKF was able to start tracking position and velocity. The above image shows what you get when the GPS is finally good enough. A really good speed accuracy is 0.3 or less. Note that while the Speed Accuracy is below 1.0, it is still not good. The Speed Accuracy is good enough (it is below 1.0), but the position accuracy is too high (it is over 9 meters) and the height accuracy is also bad (at over 8 meters). The above shows an example where it has 8 satellites but is not yet good enough for GPS flight. For GPS to be good enough for flight it needs to meet the following conditions continuously for 10 seconds: While the above shows 3D lock, it is not yet good enough for ArduPilot to use the GPS to fly in a GPS flight mode. In the above case the drone was in a position with poor view of the sky (it was on a verandah, with many trees above it). The Fix time shows how long it took to get 3D lock.The Speed Accuracy is now much lower, but not yet below the critical threshold of 1.0.This means the GPS is still not good enough FixType is 3 or larger, meaning it has 3D lock (it may be 4 if the GPS can see a SBAS satellite).Once the GPS gets 3D lock then you will get status like this: The app will do this for you in a future version, or the web interface will do it on the status page. You can manually copy the file from to the UBLOX directory on your microSD. It should look like this in Īs shown in the image, the filename for the MGA data on the microSD card is UBLOX\OFFLINE.UBX If you are seeing a zero MGA Cache Size then check it is downloading correctly to the microSD. That file is needed to allow for faster GPS lock. If the MGA Cache Size is zero then please check if you can download the above OFFLINE.UBX file. Time Source: this is where the GPS got its estimate of the time from (2 means from the web browser).Pos Source: this is where the GPS got its estimate of position from (2 means from the web browser).The size of this cache should match the current file at MGA Cache Size: the MGA cache is the downloaded file that gives the satellite orbits.Latitude/Longitude: the current lat/lon where it is searching.EKF Status: “bad” means the GPS is not yet able to be used.NumSats: the number of satellites found.
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