Background:
Originally used my Solo for pictures and video using the solo app, and well just fun flying.
In the ast month I have tried using the Tower App to take geo-referenced photos and stitch them together into orthomosaics. I have flown probably a dozen flights like this with my Solo with out incident. Everything has been going pretty smooth, until my last flight which was Aug 5th. I turned on the drone, waited for GPS position, everything appeared good to go in the tower app, 10 sats, battery fulll, telemetry signal all good etc. uploaded my predefined mission flight plan, it says the waypoints were uploaded to Solo. Then I armed the drone, and swiped right again to take off. Solo only got maybe 6" off the ground then rolled over on it's side. All the while propellers are in full take off power mode, one of the propellers breaks in half and then it rolls upside down, at which point solo detected it had crashed and shut down.
I am trying to figure out what if anything I did wrong, so this doesn't happen in the future. Frankly won't be flying the Solo again until I know what happened so I can correct my procedure if there was a flaw, do repairs if something is broken/faulty, etc etc. Other than the broken propeller which was replaced, everything seems to function just fine, I turned on and ran solo, minus propellers to ensure everything worked. I am relatively new to interpreting the tlog files, so thought I would reach out to the community for some help.
If someone would like access to the tlog file I can share, any help would be greatly appreciated.
Investigation.... I downloaded the tlog file and uploaded to mission planner. Tlog file attached here.
First thing I notice is that the mission plan doesn't show up in this tlog like it has in other Tlog files I have looked at.
Just before 69% there is a "bad gyro health" message that pops up in mission planner. There was no indication of this through the Tower app when I was flying.
At ~77% is where I believe I am arming/ taking off - which has me a bit confused becasue mission planner is still saying disarmed at this point. But you can tell it is trying to take off because the horizon rolls over, which is what happened during the flight.
It keeps saying Arm:Leaning through to about 79.5% then it flashes "System shutting down", "Error compass variance" and "inconsistent compass" messages. This is where I picked the drone back up and set it right side up.
Just after 80% the horizontal position of the drone jumps about 100m, which is likely due the drone being upside down and the GPS position would be way out. Then it starts giving a "Bad AHRS" message (pitch roll yaw sensor) It continues to also give an "error compass variance message" through the remainder of the log.
Questions for the community:
Are any of the error messages stated above indications of a faulty or broken part, or is this simply because I did not go through the calibration routines (compass, level) in the solo app immediately prior to this flight? Any time there is significant time lapse between flight I typically run through the calibration, but seeing how I had flown the day before I did not this time. This incident has me thinking it should be calibrated before every flight. If I were to do the calibrations before every flight would that help minimize the risk of a gyro error like this in the future?
Ideas on how to correct this (procedure, hardware etc)?
Should I use another app? Tower seems to be a bit unstable for my liking, but it has all the features I wanted for free, hence it was my first choice. During a few previous flights the tower app crashed but I was able to restart and connect to the Solo while it was still in Auto Mode so I didn't make much of it.
I have read a bit about Solex - would people recommend using Solex rather than Tower for "Survey Missions", is it more of a stable platform to work from? Can it do survey missions?
Thanks you in advance for any assistance.
Originally used my Solo for pictures and video using the solo app, and well just fun flying.
In the ast month I have tried using the Tower App to take geo-referenced photos and stitch them together into orthomosaics. I have flown probably a dozen flights like this with my Solo with out incident. Everything has been going pretty smooth, until my last flight which was Aug 5th. I turned on the drone, waited for GPS position, everything appeared good to go in the tower app, 10 sats, battery fulll, telemetry signal all good etc. uploaded my predefined mission flight plan, it says the waypoints were uploaded to Solo. Then I armed the drone, and swiped right again to take off. Solo only got maybe 6" off the ground then rolled over on it's side. All the while propellers are in full take off power mode, one of the propellers breaks in half and then it rolls upside down, at which point solo detected it had crashed and shut down.
I am trying to figure out what if anything I did wrong, so this doesn't happen in the future. Frankly won't be flying the Solo again until I know what happened so I can correct my procedure if there was a flaw, do repairs if something is broken/faulty, etc etc. Other than the broken propeller which was replaced, everything seems to function just fine, I turned on and ran solo, minus propellers to ensure everything worked. I am relatively new to interpreting the tlog files, so thought I would reach out to the community for some help.
If someone would like access to the tlog file I can share, any help would be greatly appreciated.
Investigation.... I downloaded the tlog file and uploaded to mission planner. Tlog file attached here.
First thing I notice is that the mission plan doesn't show up in this tlog like it has in other Tlog files I have looked at.
Just before 69% there is a "bad gyro health" message that pops up in mission planner. There was no indication of this through the Tower app when I was flying.
At ~77% is where I believe I am arming/ taking off - which has me a bit confused becasue mission planner is still saying disarmed at this point. But you can tell it is trying to take off because the horizon rolls over, which is what happened during the flight.
It keeps saying Arm:Leaning through to about 79.5% then it flashes "System shutting down", "Error compass variance" and "inconsistent compass" messages. This is where I picked the drone back up and set it right side up.
Just after 80% the horizontal position of the drone jumps about 100m, which is likely due the drone being upside down and the GPS position would be way out. Then it starts giving a "Bad AHRS" message (pitch roll yaw sensor) It continues to also give an "error compass variance message" through the remainder of the log.
Questions for the community:
Are any of the error messages stated above indications of a faulty or broken part, or is this simply because I did not go through the calibration routines (compass, level) in the solo app immediately prior to this flight? Any time there is significant time lapse between flight I typically run through the calibration, but seeing how I had flown the day before I did not this time. This incident has me thinking it should be calibrated before every flight. If I were to do the calibrations before every flight would that help minimize the risk of a gyro error like this in the future?
Ideas on how to correct this (procedure, hardware etc)?
Should I use another app? Tower seems to be a bit unstable for my liking, but it has all the features I wanted for free, hence it was my first choice. During a few previous flights the tower app crashed but I was able to restart and connect to the Solo while it was still in Auto Mode so I didn't make much of it.
I have read a bit about Solex - would people recommend using Solex rather than Tower for "Survey Missions", is it more of a stable platform to work from? Can it do survey missions?
Thanks you in advance for any assistance.