Sentera PHX User Manual
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Sentera PHX User Manual

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PHX® Terrain Following
Feature User Guide
Engineered in Minneapolis, MN
May 3, 2021
Doc # 17030 Rev –

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Summary of Contents for Sentera PHX

  • Page 1 PHX® Terrain Following Feature User Guide Engineered in Minneapolis, MN May 3, 2021 Doc # 17030 Rev –...
  • Page 2 Sentera is not responsible for and expressly disclaim all warranties of any kind with respect to third-party content, products, and services. Sentera will not be responsible for any loss, costs, or damages incurred due to your access to or use of third-party content, products, or services.

  • Page 3: Table Of Contents

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 Content Terrain Following Feature ........................1 When to Use Terrain Following Feature ..................1 1.1.1 Analytics Data Collection ......................1 1.1.2 Flight Safety ..........................1 1.1.3 Other Data Collection ......................1 Limits .............................

  • Page 4: Terrain Following Feature

    1.2.2.1 The accuracy of the terrain following feature cannot be improved with RTK GPS. The PHX does not currently use RTK GPS information for navigation. RTK GPS information may improve the height above ground information in the image metadata but will not improve GSD consistency.

  • Page 5: Mission Size

    Defaults section and the terrain elevation variation of the area being flown over. See the example mission plans below. It is recommended not to exceed 2000 waypoints when planning a mission for the PHX. 1.2.3.1 No Terrain Following Enabled The mission plan contains 272 waypoints, as shown in Figure 1.
  • Page 6 PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 2: Waypoints 1.2.3.3 Terrain Following Enabled and Tolerance Set to 0 Feet The mission contains 916 waypoints, as shown in Figure 3. www.sentera.com Page 3 Updated May 3, 2021 844.SENTERA...

  • Page 7: Using The Terrain Following Feature

    This section contains information on how to enable terrain following and the associated best practices. 2.1 Enabling the Terrain following Feature Fly PHX does not use terrain/elevation data by default. The feature must be enabled during mission planning. Plan the take off and survey mission items, as shown in Figure 4.
  • Page 8 PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 4: Survey Mission Items Press Done Adjusting, as shown in Figure 5. Then reselect the Survey mission item to open the survey details menu. Figure 5: Done Adjusting Select the Terrain menu.

  • Page 9: Recommended Settings

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 6: Checkbox Terrain following is not enabled by default for the survey planned in the Note: mission item. This process will need to be for each survey mission item in the planned mission.

  • Page 10: Tolerance

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 7: Defaults 2.2.2 Tolerance The tolerance value is used to set the threshold that determines if there is a large enough change in reported elevation between adjacent terrain tiles to command a change in flight altitude.

  • Page 11: Ground Setup And Area Of Operation

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 2.3.2 Ground Setup and Area of Operation Take into consideration where the drone will be set up, launched, and operated from. Varying terrain can cause loss of visual line of sight and reduced or lost communications between the drone and the CommsBox.

  • Page 12: The Terrain Bar

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 8: Upload Required Once the mission is uploaded to the drone, the waypoints will appear on the fly screen. 2.4.2 The Terrain Bar The mission planning screen shows how the terrain data and flight altitude vary during the mission using the terrain bar at the bottom of the screen.
  • Page 13 PHX Terrain Following Feature User Guide Rev – Doc # 17030 Figure 10: Download This converts the mission items into individual waypoints, allowing the user to see the terrain elevation and flight altitude at each waypoint, as shown in Figure 11.

  • Page 14: Offline Maps

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 Negative terrain interaction may cause the aircraft to impact with the ground, as shown in Figure BAD! Figure 13: Impact When this occurs and the mission is uploaded, the mission checker may report a warning stating that a waypoint is below the home point altitude, as shown in Figure 14.

  • Page 15: Downloading Terrain Elevation Data

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 2.5.1 Downloading Terrain Elevation Data Use the offline maps feature as described in the Sentera PHX User Guide to prepare to download map tiles with terrain elevation data. Once the map download settings have been chosen, select Fetch elevation data option in the download menu, as shown in Figure 16.

  • Page 16: Support

    PHX Terrain Following Feature User Guide Rev – Doc # 17030 4 Support Need Support? Email us at support@sentera.com or call us 844-736-8372. Revision History This table list the revision history. Release No. Date Revision Description Rev - May 3, 2021 Initial document.

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