Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Search
Search titles only
By:
Search titles only
By:
Menu
Welcome DJI Spark Pilot!
Jump in and join our free Spark community today!
Sign up
Forums
General Forums
Firmware & Software Discussion
New to Litchi - I lost my drone :(
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="RotorWash" data-source="post: 112371" data-attributes="member: 18210"><p>Log files (.txt/.csv) such as above won't give you a definitive answer as they don't contain enough data. It may be possible to find out by examining the .dat log file but that's on the bird itself. There's also a limited version of the .dat log file on the mobile device but I don't think one is created when Litchi is used. In any event you would need someone with more experience than myself to properly examine it. Even then sometimes there is no definitive answer as to why. </p><p></p><p>I did notice from the attitude indicator that the bird seemed to be doing some heavy rolling from the time waypoints took over and continued doing so going across the street to WP1 and then soon after went into ATTI mode. This rolling was probably caused by the wind hitting the bird once it got above the treeline. I'm no expert on the matter but two possibilities I can think of would be either a malfunction where the IMU and the GPS disagree about velocity which the wind may have played a factor or a compass error due to a launch site that was magnetically distorted in some way. Your stick inputs seemed minimal and shouldn't have been an issue.</p><p></p><p>From the time you turned the drone on to the time you took off was it near any metal that might throw off the compass? Even something small like a raised nail on a deck can effect the compass if close enough. I don't see any of the standard compass/yaw/speed errors in the log but as I'm newish to Litchi myself I'm not sure if Litchi records that data, maybe one of the veteran Litchi pilots reading this will know. Besides the .csv log, Litchi also creates a .txt log that is located in Android with the path: \DJI\com.aryuthere.visionplus\FlightRecord\. You could try posting that to the <a href="https://www.phantomhelp.com/LogViewer/Upload/" target="_blank">Phantomhelp LogViewer</a> just to see if there is any other info in it.</p></blockquote><p></p>
[QUOTE="RotorWash, post: 112371, member: 18210"] Log files (.txt/.csv) such as above won't give you a definitive answer as they don't contain enough data. It may be possible to find out by examining the .dat log file but that's on the bird itself. There's also a limited version of the .dat log file on the mobile device but I don't think one is created when Litchi is used. In any event you would need someone with more experience than myself to properly examine it. Even then sometimes there is no definitive answer as to why. I did notice from the attitude indicator that the bird seemed to be doing some heavy rolling from the time waypoints took over and continued doing so going across the street to WP1 and then soon after went into ATTI mode. This rolling was probably caused by the wind hitting the bird once it got above the treeline. I'm no expert on the matter but two possibilities I can think of would be either a malfunction where the IMU and the GPS disagree about velocity which the wind may have played a factor or a compass error due to a launch site that was magnetically distorted in some way. Your stick inputs seemed minimal and shouldn't have been an issue. From the time you turned the drone on to the time you took off was it near any metal that might throw off the compass? Even something small like a raised nail on a deck can effect the compass if close enough. I don't see any of the standard compass/yaw/speed errors in the log but as I'm newish to Litchi myself I'm not sure if Litchi records that data, maybe one of the veteran Litchi pilots reading this will know. Besides the .csv log, Litchi also creates a .txt log that is located in Android with the path: \DJI\com.aryuthere.visionplus\FlightRecord\. You could try posting that to the [URL='https://www.phantomhelp.com/LogViewer/Upload/']Phantomhelp LogViewer[/URL] just to see if there is any other info in it. [/QUOTE]
Verification
Post reply
Forums
General Forums
Firmware & Software Discussion
New to Litchi - I lost my drone :(