AERO RANGER FORUM

PILOT SUPPORT

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BY admin
#32
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The Real Estate or "House" mission is designed to automate the standard shots that would be taken when photographing a house for sale. The mission takes two top down photos, followed by two circuits of oblique photos, taken while orbiting the house. A typical House mission will take ~30-60 photos depending on settings used, or one continuous video, if in video mode.

NOTE: If you have a Spark you cannot use this mission. The Spark does not support waypoint missions.

During the orbit part of the mission, the camera will be automatically angled to place the house in approximately the bottom 1/2 to 1/3 of the image. Although terrain and house size will impact how it fills the frame.



https://vimeo.com/243050061



To create a House mission, navigate to the Plan screen using the main menu as shown below. Tap the "Hamburger" icon at the top left of the screen to display this menu:

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On the Plan screen, move the map close to the house that you would like to survey and zoom in to a comfortable level. Don't zoom in too far. While you can zoom and scroll later, it is easier to move the map to roughly where you need it first.

When ready to create the mission, press the round blue + button at the bottom right of the screen to reveal the mission selector. Tap on the "Building" mission and press Next to start building a house mission

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Step 1: Mission Objectives
The first step of any mission is the Mission Objectives dialog. This dialog allows you to choose basic settings for the mission and the items on it will adapt to suit the mission type. This will slide in from the right of the screen. Note that you can exit mission creation by tapping the X at the top left of the objectives dialog. This will cancel new mission creation and retain whatever mission is currently loaded.

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In the example above, there are several important settings that you should check, but in many cases the defaults will be suitable
  • Camera - The camera should show the drone that you are connected to now, or were last connected to.
    • Tap on this section of the dialog to display the camera settings.
    • Here you can change to RAW image types, set white balance, choose video mode and more.
Tip: You don't have to change Camera settings now, you can change them at any time prior to takeoff. Camera settings are available from the main app menu
  • Flying altitude - this box allows you to enter the altitude you would like the main or outer ring of the mission to be at.
    • The inner ring of the mission will be automatically lower (~60% of this height), and the top down part of the mission is defined by the box size you select in the next step.
    • This altitude cannot be lower than the Min Safe Alt.
    • This altitude is measured relative to the home (takeoff) point
  • Min Safe Alt - this is a critical setting for the entire mission.
    • Whatever other settings you choose, no part of the mission can be lower than this altitude.
    • It also defines the altitude at which the vertical part of takeoff finishes and the vertical part of landing begins
    • Make sure the Min Safe Alt is set well above any obstacles such as tall trees or buildings in your area of operations. The safety of the drone and people and property around you is your responsibility.
    • Remember - all altitudes are measured relative to the Home point.
  • Sidelap % - Since most of the mission involves the drone flying sideways, the sidelap % defines the approximate sideways overlap of each photo with the one before it.
    • The higher this value, the more photos will be taken, but the slower the mission will be as the drone must pause for each photo. This can vary from 40% to 95%.
Tip: Photos may be skipped on some occasions, particularly if many photos are taken over a short period of time causing the camera buffer to fill up faster than the images are able to be written to the memory card. It is recommend that a fast memory card is used and to keep sidelap fairly high for best results. ~70% side overlap should generate plenty of overlapping photos in most cases. 
  • Target Speed - this is the speed in m/s that the aircraft will attempt to attain when flying between photographs or waypoints.
    • In most cases, the default is fine.
    • If you set this too fast, you may not have time to react in case of an incident where you need to take manual control.
    • 5m/s=18km/hr=11.2 miles/hr
  • Review mission after creation - if you tick this, the app will remain on the Planning page once you have finished creating the mission, if ticked off, it will automatically return to the Fly page, ready for takeoff.
Once you are happy with these settings, press Next.


Step 2: Mission Location
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In this step, you graphically define where the mission is located. The widget shown above allows you to position the mission graphically using finger based gestures. An information window at the top of the screen also provides hints on how to create the mission.
  • Centre the mission: drag the centre of the box directly over the house of interest for this mission
  • Size the top down part of the mission: Drag the white ball on the lower edge of the box to size the top down photos.
    • Two top down photos are taken, one that aligns with this box and one at approximately 90 degrees to it.
    • The size of the box approximately determines the coverage of the first photo (the photo will typically be slightly larger).
    • Approximate ground coverage dimensions in metres are shown iinside the box.
    • The altitude required to take this photo is calculated from the camera sensor dimensions and this box's dimensions
    • If this turns out to be below the Min Safe Alt, the altitude will be clipped to the Min Safe Alt.
Tip: ensure you size the box slightly larger than you need. It's far better to crop a photo later than deal with missing coverage.
  • Size the oribit radius - by dragging the green aircraft icon in or out, you can set how far away or how close the aircraft will fly to the house
    • The default setting of 100m for the outer radius is suitable for most situations.
    • The inner ring is at 60% of the radius of the outer ring (60m for a 100m outer radius). This provides a close up of the house
  • Set the arc length - Using the two white balls, seen above at the bottom of the outer ring, you can determine how much of an arc the mission creates.
    • Drag the balls around the arc to reduce the arc size. This can be useful if there is an obstruction of some kind in a part of the mission area.
    • Mission arcs can range from 90 degrees to 360 degrees as shown above.
Tip: To zoom in/out and move or rotate the map, you can use regular pinch/zoom or single finger drag gestures on an area of the map away from the real estate widget. 

Tip: If you have zoomed in too far, finger gestures may not work correctly. In this case, use the  Image button at the top right of the screen to zoom out one step.
Once you are happy with your mission, press the blue OK button and it will be built for you and displayed on the screen. If you have ticked the "Review mission after creation" box in step 1, the app will remain on the planning screen. Otherwise it will jump back to the "Fly" screen ready for takeoff.

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A built House mission is shown above. The waypoints indicate where each photo will be taken if using stills. In video mode, the drone will simply pass through them while filming. Remember that you can take more photos if you require them, by watching the video preview window and pressing the hardware shutter button the top right of the RC controller.



Mission Statistics
After the mission is created, basic mission statistics are updated in the white strip beneath the map.

In the above case, the mission is 1.31km long, 28 pictures, 8:27 mins flight time (estimated) and will require one battery.

You have now completed creation of a panorama mission. When you are ready to fly, you may return to the Fly screen and takeoff to try out your mission.



Final tips for House missions:
  • You can fly a House mission with the camera set to JPG, RAW (dng) or in video mode. When in video mode, the aircraft will start filming after takeoff and stop at landing automatically. The aircraft will not stop at each waypoint, but rather fly a smooth path that passes through each waypoint.
  • Make sure you set the top down photo box large enough to capture all of the property of interest
  • Keep the target speed slow so you can take control in the case of any unexpected event during flight.
  • The camera angle for framing the house in the bottom 1/3 of the image is calculated assuming the house is at the same altitude as the drone on takeoff. In areas with steep terrain, this may not always be true. Try to position the home point relatively close to the house at approximately the same vertical level.
  • This camera angle is set by the drone. While you can move it in flight between waypoints, when the drone arrives at the next waypoint it will be set back to a pre-calculated angle.
  • The drone does not take terrain into account in any mission type. All altitudes are relative to the takeoff point. Please ensure you set the Min Safe Alt high enough to avoid crashing into terrain, buildings, people or infrastructure at any point of the mission. You are responsible for the safety of your equipment and people and property around you.
WHAT IS THE HOME POINT?

A critical part of any mission is the Home point.

SUPPORTED DRONE MODELS

Most recent DJI drone models are supported

HOW DO I CHANGE CAMERA SETTINGS?

Camera setting have recently had a major revamp.

How do I zoom the camera

To zoom your camera using AeroRanger

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