Purpose of this Guide

This will step through the changes/differences when using Dronelink with the Mavic 3 E. These steps are generic for any SiteSee provided Dronelink mission. Please the specific mission guide for detailed steps on the mission parameters and steps.

Before the Flight

Test Your Equipment
It is strongly recommended that, prior to using Scanlink, you test your equipment in the field to ensure that it is compatible and everything is working. Specifically, make sure that your remote control and drone are connecting as designed, then fly the drone and manually capture a few images. Remove the SD card, insert it into your PC and check that it contains the images you captured and are a high quality.

Installation

Before flight the Dronelink (DJI RC Pro) will need to be installed onto the controller. Please follow these steps for the download procedure.Ensure you select the version for the Mavic 3 Enterprise and RC Pro Enterprise controller.

Do not download the app from the app store, only use the APK version of Dronelink.

Accept Mission

Before you can fly a task you must first accept it, so that it will become available in your Dronelink account. To do so, click on the task link in our email, then follow the step-by-step instructions. If you have not done so yet, you will be prompted to set up a free Dronelink account (it is not necessary to purchase a Dronelink plan).

Running the Mission

Enabling Obstacle Avoidance

SiteSee has tested obstacle avoidance for the following versions,

Aircraft Version: 10.01.0503

Remote Controller: 02.01.0517

If your drone version differs ensure there is no firmware version mismatches and are kept up to date.

More information about obstacle avoidance can be found here.

Obstacle avoidance can be enabled globally via the use of the DJI Pilot 2 App.

Find step by step instructions below,

1. Launch DJI Pilot 2 App. Navigate to settings

2. Enable Obstacle Avoidance

Note that the suggested setting is Brake, all directions.

The expected behaviour on brake is the drone should prevent flight towards the obstacle detected without deviating out of the planned trajectory then present the "Unable to Take Control" error, pausing the mission at the last point where it started to deviate from the expected flight path.

It will be up to the pilot to navigate around these obstacle afterwards via the use of in-flight controls.

3. Set Obstacle Warning and Braking Distance

The warning distance and braking distance can be configured as desired by the pilot.

Recommendation for these values are 0.6m for braking distance and 1.2m for warning distance.

Once these settings have been configured ensure you follow the process of closing the application properly to ensure that the Dronelink app can operate effectively.

Settings

Please ensure you use the following camera settings

Dewarping → On
Mechanical Shutter → On
Camera in Wide Mode
Zoom set to 1x

Mission

When you load up Dronelink app, the DJI Pilot 2 app is required to be forced exit. Follow these instructions to force close the app . The app will have difficulty connecting to the drone when both are open in the background. You will also need to follow the same steps when returning to the DJI app.

Ensure you read the documentation and screen instructions closely when marking and flying the mission.

Camera Setup

The camera is required to be set up following the same procedure. The histogram is currently not available, please select an appropriate shutter speed. The ISO and Fstop are same as all current drones set up.

ISO - 100

Fstop - 4.0

Camera - Manual Mode

RTK

Documentation Coming Soon

Upload Images

The images are saved into a now folder set by date and time the drone turned on. Ensure you extract all images from multiple folders as required. Try and minimise the number of times the controller and/or drone are turned off while running a mission to reduce the possibility of missing images when uploading.

When uploading DO NOT include the Timestamp file created with the images.

Troubleshooting Problems

The common troubleshooting issues encountered when using the M3E.

App Crashes continuously

Follow the following documentation to force close the app. Also ensure the drone and controller have the latest firmware update. If both app are open, the app will not response correctly.

Image Warping

Ensure the dewarping setting is selected. This will minimise the camera lens effect on the image.

See the examples below. The edges of the images have been distorted due to the camera lens with dewarping off.

OFF	ON

Unable to change camera settings

The camera parameters cannot be altered when in wide mode, ensure the camera is set to Wide Mode to then change the ISO and Fstop parameters. The setting can be changed in DJI Pilot 2 app and Dronelink.

See the example below, view in DJI Pilot 2 App.

Correct Mode	Incorrect Mode

Correct as the camera parameters can be changed and adjusted as required.	Incorrect as this will limit the ability to change the camera parameters as require.

The option in Dronelink.

Camera Calibration

The first time you start a Dronelink mission the camera will be required to be calibrated. This should only need to be completed once. See here for more details.

GPS Interference

The radio waves emitted by a cell tower can interfere with the GPS system of your drone. As you fly close to the antenna panels, keep an eye on GPS signal strength. If you loose the GPS signal, your drone might become difficult to control. If you do notice significant interference, move your drone further away from the antenna panels.