Questions and Answers
At high elevations, it's essential to stay hydrated because of the risk of overheating drone equipment.
False
When flying near power lines with a drone that has a visual positioning system, there may be issues with the drone's behavior.
False
Compass interference can be resolved by returning to home immediately.
False
Establishing pre-flight routines can help prevent issues and ensure a safe flight because it allows for the acquisition of telemetry information.
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Lack of telemetry information and distance data can indicate a problem with the drone's compass.
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Study Notes
Free Flight Station
- The Free Flight station focuses on gathering facade data, which is the hardest part of mapping.
- To create detailed 3D textured meshes, multiple free flights are necessary to ensure a high level of overlap.
- The Pix4D free flight mode can be used, or DJI Go4 with time shots, but flying slowly is essential.
Flight Lines
- Flight lines should be done in odd numbers, similar to orbits.
- The first flight line should be below the awning, with subsequent lines at 15ft intervals.
- The camera should be tilted at no more than 15° to capture images.
Free Flight Mode
- In free flight mode, the horizontal slider should be set to 3ft, and the vertical slider to 6ft.
- The Sunny white balance setting should be used.
- The drone will snap an image every 3ft when moving horizontally.
Flying Techniques
- Start flying at line of sight, then use the screen to match the flight line and capture consistent data.
- When flying around corners and turns, make proportional movements and yaw slowly.
- Keep visual line of sight with the drone when flying.
- When mapping corners, take at least three images to ensure coverage.
Important Reminders
- No sky should be in the imagery, as this will affect the mapping process.
- Map what you can see, as this is the only way to create accurate models.
- At least 20% of the ground should be in the first layer of images to create manual tie points.
- Be careful when flying around trees and power lines, as these can cause problems with GPS.
Troubleshooting
- If the drone's red lights are not flashing, pause the mission and restart.
- If Pix4D overheats or the phone overheats, stopping the mission and starting a new one may be necessary.
- If issues occur during a mission, it may be necessary to create a smaller double grid to finish the original mission.
Competitive Advantage
-
Understanding the importance of capturing detailed models with no holes is a competitive advantage in mapping.
-
Creating beautiful, lifelike models requires a good understanding of acquisition strategies.### Drone Flight Safety
-
If drone equipment (e.g., Crystal Skies) is left in the heat, it can overheat and malfunction; to avoid this, keep equipment in the shade.
-
Lack of telemetry information and distance data can indicate a problem with the drone; in such cases, return to home immediately.
-
When flying near power lines with a drone that has a visual positioning system, there may be no issues; however, without VPS, the drone may behave erratically.
-
If a drone is experiencing compass interference ("toilet bowling"), land immediately and recalibrate the compass.
Best Practices
- Develop habits and routines, such as completing battery tests before taking off, to ensure successful drone operations.
- Establishing pre-flight routines can help prevent issues and ensure a safe flight.
Additional Tips
- At high elevations, it's essential to stay hydrated; consider using products like Liquid IV, which contains electrolytes and can help hydrate three to four times faster than water.
Free Flight Station
- Gathering facade data is the hardest part of mapping, and it requires multiple free flights to ensure a high level of overlap.
- Pix4D free flight mode or DJI Go4 with time shots can be used, but flying slowly is essential.
Flight Lines
- Flight lines should be done in odd numbers, similar to orbits.
- The first flight line should be below the awning, with subsequent lines at 15ft intervals.
- The camera should be tilted at no more than 15° to capture images.
Free Flight Mode
- In free flight mode, the horizontal slider should be set to 3ft, and the vertical slider to 6ft.
- The Sunny white balance setting should be used.
- The drone will snap an image every 3ft when moving horizontally.
Flying Techniques
- Start flying at line of sight, then use the screen to match the flight line and capture consistent data.
- When flying around corners and turns, make proportional movements and yaw slowly.
- Keep visual line of sight with the drone when flying.
- When mapping corners, take at least three images to ensure coverage.
Important Reminders
- No sky should be in the imagery, as this will affect the mapping process.
- Map what you can see, as this is the only way to create accurate models.
- At least 20% of the ground should be in the first layer of images to create manual tie points.
- Be careful when flying around trees and power lines, as these can cause problems with GPS.
Troubleshooting
- If the drone's red lights are not flashing, pause the mission and restart.
- If Pix4D overheats or the phone overheats, stopping the mission and starting a new one may be necessary.
- If issues occur during a mission, it may be necessary to create a smaller double grid to finish the original mission.
Competitive Advantage
- Understanding the importance of capturing detailed models with no holes is a competitive advantage in mapping.
- Creating beautiful, lifelike models requires a good understanding of acquisition strategies.
Drone Flight Safety
- Drone equipment should be kept in the shade to avoid overheating and malfunction.
- Lack of telemetry information and distance data can indicate a problem with the drone; in such cases, return to home immediately.
- When flying near power lines with a drone that has a visual positioning system, there may be no issues.
- If a drone is experiencing compass interference ("toilet bowling"), land immediately and recalibrate the compass.
Best Practices
- Develop habits and routines, such as completing battery tests before taking off, to ensure successful drone operations.
- Establishing pre-flight routines can help prevent issues and ensure a safe flight.
Additional Tips
- At high elevations, it's essential to stay hydrated; consider using products like Liquid IV, which contains electrolytes and can help hydrate three to four times faster than water.
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Description
This quiz covers the basics of drone mapping and surveying, including free flight stations and flight lines, to create detailed 3D textured meshes.