What are folks doing to try and improve redundancy?
I recently had an X8, 16 inch props, castle ESC's Wookong M (latest FW and upgraded IMU) go silent at a height of about 50m and flip while in GPS hold with a 20K camera on board. I am still hoping that the camera can be repaired but ...... Surprisingly i only lost three props and didn't break a boom or leg (soft ground so to speak). I had googles on at the time while framing an image so i missed the flip just heard the silence and by the time goggles were off i saw the inverted copter about 10-15m above the ground
I still haven't got to the bottom of the crash but things are pointing toward a IMU reset in mid flight (unfortunately on this machine i didn't have the OSD logging) .
From what i have been told by a DJI distributor the controller can do this if the PMU doesn't supply the correct voltage to the FC (brown out), likewise to the RX and of course if there is too much vibration (white lights) - this machine was solid (no white lights) but relatively young 10-20hrs unlike some of my others which have closer to a 100. The distributor also said that the FC takes 4-5s to reboot in GPS or Atti mode but if flicked back to manual the reboot is less than 1s nice to know now but unverified by me.
This has got me thinking about adding a bit of redundancy (yes chutes for what they may be worth) but i am also thinking more about the electronics. On my turbine running a AceOne i use a Powerbox (dual regulators and batteries to supply the FC). The power is preety clean as tested with a CRO.
What are people doing on multicopters? I know of things like Fromeco DCUP or TCAP's by Futaba and others that are essentially capacitors used to smooth voltage and supply voltage if brownouts occur. Do people supply secondary regulated 5V power to their FC/RX using secondary regulators as a back up ? or alternatives like Scorpion Backup Guard 5v battery?
I know you can never win a redundancy argument because there are so many points of failure but i am interested to see what people with high value payloads are doing - if anything?
I would also be interested if anyone has had all motors just shut off mid flight and what they narrowed the cause down too. Note i was about 3min in and batteries still had 80% charge upon recovery (running two 11Ah 6S MaxAmps).
I am now more FC wary than i was before but it seems they all have their issues. I use the GPS and waypoint functions so that makes it harder to switch to other systems with less features.
Cheers,
Remy
I recently had an X8, 16 inch props, castle ESC's Wookong M (latest FW and upgraded IMU) go silent at a height of about 50m and flip while in GPS hold with a 20K camera on board. I am still hoping that the camera can be repaired but ...... Surprisingly i only lost three props and didn't break a boom or leg (soft ground so to speak). I had googles on at the time while framing an image so i missed the flip just heard the silence and by the time goggles were off i saw the inverted copter about 10-15m above the ground
I still haven't got to the bottom of the crash but things are pointing toward a IMU reset in mid flight (unfortunately on this machine i didn't have the OSD logging) .
From what i have been told by a DJI distributor the controller can do this if the PMU doesn't supply the correct voltage to the FC (brown out), likewise to the RX and of course if there is too much vibration (white lights) - this machine was solid (no white lights) but relatively young 10-20hrs unlike some of my others which have closer to a 100. The distributor also said that the FC takes 4-5s to reboot in GPS or Atti mode but if flicked back to manual the reboot is less than 1s nice to know now but unverified by me.
This has got me thinking about adding a bit of redundancy (yes chutes for what they may be worth) but i am also thinking more about the electronics. On my turbine running a AceOne i use a Powerbox (dual regulators and batteries to supply the FC). The power is preety clean as tested with a CRO.
What are people doing on multicopters? I know of things like Fromeco DCUP or TCAP's by Futaba and others that are essentially capacitors used to smooth voltage and supply voltage if brownouts occur. Do people supply secondary regulated 5V power to their FC/RX using secondary regulators as a back up ? or alternatives like Scorpion Backup Guard 5v battery?
I know you can never win a redundancy argument because there are so many points of failure but i am interested to see what people with high value payloads are doing - if anything?
I would also be interested if anyone has had all motors just shut off mid flight and what they narrowed the cause down too. Note i was about 3min in and batteries still had 80% charge upon recovery (running two 11Ah 6S MaxAmps).
I am now more FC wary than i was before but it seems they all have their issues. I use the GPS and waypoint functions so that makes it harder to switch to other systems with less features.
Cheers,
Remy