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Connectionless Mapping

Tudor -

As of Map Pilot version 2.3.0, a mapping mode that does not require an active connection to the aircraft as been added.  


Connectionless Mode is designed for use when mapping will occur far away from the home point or if there is a lot of interference that would keep the camera from triggering properly using Active Connect mode.

Flight controller firmware 3.2.10.0 or above is required to use this feature.


 

Active Connect mode will create more accurate 3D models since all of its images are taken while traveling the same speed, but Connectionless mode doesn't require a connection to the app. If you plan on having a strong connection to the aircraft or require the most accurate models possible, we recommend using the Active Connect mode. 


When Connectionless mode is being used, the grey dots will be shown as usual to show progress. The location of these dots is based on a message from the aircraft that it took an image. If there is no active connection to the aircraft these dots will not be drawn.

In Active Connect mode, images will only be collected while in the defined survey boundary area. In Connectionless mode images can and will be taken outside the survey area and at aircraft speeds other than the prescribed one.

Previous to this version, the mobile device was in charge of triggering the capture of images at appropriate locations. The Connectionless mode uses the distance the aircraft has traveled to trigger the camera. The distance interval gets automatically defined based on the prescribed flight altitude and speed. 

Active Connection mode will create more accurate data outputs and require less image cleanup. Taking images at different speeds, which inherently happens during fixed interval imaging, leads to inaccurate results in elevation and volumetric products and may cause stitching issues in general.

Safety issues aside, the main issue with not maintaining an active connection is the inability to track progress and detect route abandonment events. The camera will continue taking images in the absence of a connection to the mobile device.

NOTE: The Phantom 4 Pro firmware does not yet support sending Map Pilot messages when it takes an image in Connectionless mode so the grey image location dots will not be drawn. DJI has indicated that they will change this in a future firmware release.

From DJI:

 

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Comments

  • Avatar
    mrlbristol

    I love you guys but this doesn't read like something you wrote.
    "Active connect" vs "connectionless" explanation has me loaded with questions. I'll only start and see if others jump in.
    "Map Pilot version 2.3.0 a mapping mode that does not require an active connection".
    Unless I missed it. I don't understand your definition of "active connection". Are you referring to the link between aircraft and controller?
    "Active Connect mode will create more accurate 3D models"
    I'll assume you are (also) referring to 2D Maps. When I read "3D Models", I'm not thinking 2D maps.
    "If you plan on having a strong connection to the aircraft or require the most accurate models possible".
    Well, I certainly don't plan on losing the connection, and I don't think a lesser accurate deliverable (-:
    "In Active Connect mode, images will only be collected while in the defined survey area."
    Will it not take the "ground zero" reference image requested when uploading the mission?
    There's more, but I'll stop here. Question in my mind is still.....to "Active connect", or "connectionless" (for a 2D map mission on Christmas Day :-)

  • Avatar
    Tudor

    Up until this version, all image triggering was done by the app and for that to be done the RC connection strength had to be > 85% or images would be dropped/delayed.

    From the article: "Active Connection mode will create more accurate data outputs and require less image cleanup. Taking images at different speeds, which inherently happens during fixed interval imaging, leads to inaccurate results in elevation and volumetric products and may cause stitching issues in general."

    We have lots of users that are mapping far away from the takeoff point or in areas where there is a lot of interference so the active camera triggering mode was problematic for them.

    Both modes have their pluses and minuses.

  • Avatar
    Veha La

    I could not make Connectionless work. The app did not take any pictures. It was just flying. Why?

  • Avatar
    Mxcoldhit

    Same here. Connectionless mode did not take pictures. P3 standard.

  • Avatar
    Veha La

    I forgot to mention that I'm on Phantom 4.

  • Avatar
    Zane

    Make sure all of your firmwares are up to date on all components. The connectionless triggering is distance based which is a very new feature in the DJI SDK. If you are not up to date, it will not likely function properly.

  • Avatar
    Zane

    Also, be sure to check the SD card to see that images are being taken. The camera may very well be taking the images. The dots showing image location are only approximate and are based on a SDK callback that not all aircraft support.

  • Avatar
    Mxcoldhit

    I have checked the go app. It says I'm on 3.11 and 1.6.8 or 1.6.9 I can't remember which to be exact. It doesn't give me a prompt to upgrade. The sdcard is blank. Just tried another flight. I had to swap back over to active connection. Litchi does connectionless flight with video and camera commands no problem.

  • Avatar
    Zane

    It is likely that they haven't added distance based triggering support to the Standard. It gets skipped for a lot of things due to its more limited hardware.

  • Avatar
    Mxcoldhit

    Would it skip the phantom 4 as the previous user is having the same problem.

  • Avatar
    Mxcoldhit

    I do appreciate the responses. It's nice to know that the team responds.

  • Avatar
    Tudor

    Flight controller firmware 3.2.10.0 or above is required.

    From the DJI SDK documentation for the distance triggering feature:

    "Warning: speed, shootPhotoTimeInterval and shootPhotoDistanceInterval relate to behavior between this waypoint and the next waypoint in the mission. In comparison, turnMode, altitude and heading relate to behavior between the last waypoint and this waypoint in the waypoint mission. Only supported by flight controller firmware 3.2.10.0 or above."

  • Avatar
    Veha La

    I'm with Phantom 4. How to check flight controller firmware version? From DJI GO app, I have 3.1.1 for the app, 1.8.0 for remote controller and 01.02.0602 for aircraft.

  • Avatar
    Veha La

    Please instruct us how to verify Flight controller firmware for working with Connectionless. Is this feature support Phantom 3 Pro, Phantom 4 and Phantom 4 Pro?

  • Avatar
    Thuy Tran

    I'm used to capture flying inspire1 then this feature is not?
    I must establish how to install?

  • Avatar
    Thuy Tran

    Flight controller firmware 3.2.10.0 or above is required to use this feature.???

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