Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

How much intestinal fortitude do you have with waypoints?

Discussion in 'Pro/Adv Discussion' started by DJJI, Apr 28, 2016.

  1. DJJI

    Joined:
    Jul 10, 2015
    Messages:
    190
    Likes Received:
    16
    Hello everyone

    I was just wondering if people trust the litchi waypoints system and the phantom?
    I`ve used the litchi app and p3p coupple of times, sent it far away so I loose the signal but the awesome phantom is always finding it`s way back.

    Do you trust your phantom and litchi app?
    I don`t send it out because I find that awesome except it ism but I think the waypoints are really good.
    You can do actions at each waypoints and focus on objects on the way+++
    And it flies better than you!


    And for the drone police, I don`t send it in the cicty or populated areas.
     
  2. mnewxcv

    Joined:
    Apr 4, 2016
    Messages:
    269
    Likes Received:
    65
    I want to buy the litchi app but I haven't found an answer to what happens if the craft looses GPS when out of controller range.
     
  3. alokbhargava

    Joined:
    Sep 28, 2015
    Messages:
    5,061
    Likes Received:
    1,626
    Location:
    San Francisco, CA
    I love to work with offline waypoints as I have time to judge the ground elevation at each point. No doubt Litchi and P3P give full satisfaction. My most of the shootings are with Litchi.

    There would be definitely other good apps but I picked up Litchi first so now staying with it and don't find any compelling reason to switch to another.
     
    Dounin Front, John mac and NRJ like this.
  4. alokbhargava

    Joined:
    Sep 28, 2015
    Messages:
    5,061
    Likes Received:
    1,626
    Location:
    San Francisco, CA
    This is an flying machine and anything can go wrong any time. Why do you worry, be prepared to face it, handle it.

    Obviously if there is no GPS, you should get it to ATTI mode and manually control it to get back to you else you have all chances of loosing it.
     
    Petros5678 likes this.
  5. mnewxcv

    Joined:
    Apr 4, 2016
    Messages:
    269
    Likes Received:
    65
    yes, obviously. I suppose missions going out of range of the remote would be an exception.
     
    mikesmiley likes this.
  6. DJJI

    Joined:
    Jul 10, 2015
    Messages:
    190
    Likes Received:
    16
    My guess: I think it`s really difficult to switch from GPS to ATTI when you have lost the signal already, because you are too far away. So if it looses GPS signal when you`re out of range to the transmitter you`re holding in your hand you can`t know for sure that`s the problem because you will never find it again? Or?
     
  7. alokbhargava

    Joined:
    Sep 28, 2015
    Messages:
    5,061
    Likes Received:
    1,626
    Location:
    San Francisco, CA
    It's rare to lose control signal and GPS both at the same time. If signals are lost, it will RTH, if GPS is lost switch to ATTI mode, if both are lost, enjoy seeing it flying on its own. Pray to Got to get you one signal back.
     
  8. DJJI

    Joined:
    Jul 10, 2015
    Messages:
    190
    Likes Received:
    16
    If signal is lost on waypoint function it will not RTH it will continue with the waypoints.
    Litchi says they don`t know what it will do if it`s out of range and GPS is lost. They think it will land when the battery gets critical. Only DJI knows for sure the answer to this question.
     
  9. alirz

    Joined:
    Oct 14, 2015
    Messages:
    270
    Likes Received:
    25
    i thought way points had to be within 500m of the home point location?
     
  10. DJJI

    Joined:
    Jul 10, 2015
    Messages:
    190
    Likes Received:
    16
    You can go as far as you would liketo with litchi, but you have a problem if there is not enough battery for her to come home...

    You can now also prepare waypoints on your comuter then save it and download it on your phone.
    Check out this page, here you can see other people`s waypoints.
    Click on discover on top of the page to the left.

    Mission Hub - Litchi
     
  11. alirz

    Joined:
    Oct 14, 2015
    Messages:
    270
    Likes Received:
    25
    yes, i already own Litchi. Thanks
    However i know a few firmware versions back, DJI introduced a limit in the firmware that the way points had to be within 500m radius of the home point. Is that not true anymore?
     
  12. matti

    Joined:
    Mar 15, 2016
    Messages:
    399
    Likes Received:
    62
    AFAIK: in Litchi the 3D distance between consecutive waypoints (including between last WP and first WP) must be within 0.5m to 2000m.

    Max distance and max altitude DJI GO app settings are respected.

    If the AC loses RC connection it will continue the waypoints.

    If the AC loses RC and GPS connection (depending on how many satellites left) it hovers and lands when the battery runs out.
     
  13. Petros5678

    Joined:
    Sep 23, 2014
    Messages:
    80
    Likes Received:
    19
    .
    Ditto. When flying drones the only thing you have to fear is fear itself. Also one can't make out the fpv if the screen is shaking. "Like mine did the other day". :weary:
    Failure begins in the mind.
     
  14. Petros5678

    Joined:
    Sep 23, 2014
    Messages:
    80
    Likes Received:
    19
    This is why this forum rules! I did not know an app like that exists and love the concept.
    :)
     
  15. meissner58

    Joined:
    Mar 10, 2016
    Messages:
    210
    Likes Received:
    28
    What would be the benefits of having litchi? Is it more stable? More options? I'm very interested in buying it myself. Is it a DJI program or 3rd party? I've seen some pics of it and read alot of people's comments on here about it but haven't pulled the trigger .
     
  16. mnewxcv

    Joined:
    Apr 4, 2016
    Messages:
    269
    Likes Received:
    65
    I am debating buying it myself. However to answer some questions:

    It is third party.
    It has more options (autonomous flight) and because of this is more "stable" aka it flys smoother than a human can in most regards.
     
    Peio64270 likes this.
  17. alokbhargava

    Joined:
    Sep 28, 2015
    Messages:
    5,061
    Likes Received:
    1,626
    Location:
    San Francisco, CA
    There is absolutely no need to buy a third party app, you can fly with DJI Go App but...but there are few pluses in every third party apps. I'm I te rested in video aerial photography and wanted to plan well in advance how and where my P3 should fly at what sped and how the camera should be angled. It's difficult to do with DJI Go app and not possible yet to plan it offline. One of the apps that helped me is Litchi. I'm enjoying it. I could have picked up another app to do the same task but somehow I started with Litchi and staying with it for the purpose.

    Know your interest and requirement first and then decide what to do, what to buy if any, can you take the risks etc...,,,so many question marks.
     
  18. AirSpace2016

    Joined:
    Jan 21, 2016
    Messages:
    86
    Likes Received:
    18
    I have flown missions where it loses signal on litchi. Yes if it loses GPS it would go into atti mode but the chance of it continually losing GPS for that amount of time is almost impossible. Should gps be restored I would assume it would either try to go to the next way point or when battery is running out smart RTH. In all the missions I have tried it has never lost GPS not with gonlass as well.
     
  19. meissner58

    Joined:
    Mar 10, 2016
    Messages:
    210
    Likes Received:
    28
    I couldn't agree more. I'll stay in my safe zone for now until I really learn the ropes. It does like like an awesome app though from what I see. I do love the way point feature . I can't wait until the day I can plot out my way point and rotate my bird while heading on a set route with no worries meaning not having to control AC , just focus on the angles etc
    .Thank you...
     
  20. Mark The Droner

    Joined:
    Aug 26, 2015
    Messages:
    3,950
    Likes Received:
    1,151
    Location:
    Brookeville, MD, USA
    I'll just put in my two cents

    If it loses GPS and RC, it is programmed to hover then land, but the problem is it's not going to hover in place. It's going to drift for sure. And that means it's likely going to hit something and go down. Yeah, GPS might come back, but there has to be a good reason you lost GPS in the first place (satellites are blocked) so I wouldn't count on it getting GPS back.

    So in summary, I would want to fly waypoints with plenty of extra satellites and I wouldn't want to do anything risky (e.g. send the craft over and then down into a stadium as proposed in another thread).
     
    meissner58 likes this.