1.1.1 Drone

💡

Depending on the construction stage of the construction site and the budget of the project, the specifications and price range for purchasing drones may vary. To reflect the diverse needs of these sites, Meissa Platform supports the integration and upload of various commercial drone data to make it easy and affordable to digitise sites using drones.

The Meissa Platform has a flexible structure that allows data from various drone manufacturers to be integrated. This allows you to choose the right drone for your site and easily collect and upload drone data.

 

Meissa Supported Drone Types

The following drones are supported by Meissa, but if you don't see your drone listed, you can still use the Meissa platform! For more drone inquiries, please call 02-883-2140.

Meissa Supported Drone Types

The following drones are supported by Meissa, but if you don't see your drone listed, you can still use the Meissa platform!
For more drone inquiries, please call 02-883-2140.

• DJI Mavic 3 Enterprise

  • Recommended for beginners in drone flying
  • For small to medium-sized sites
  • 45 minutes of flight time
  • 20 MP camera (mechanical shutter)
  • 15 kilometer range
  • 950g (including battery weight)
  • RTK & PPK geotagging available

• DJI Phantom 4 RTK

  • Recommended for beginners to drone flying
  • Great for small to medium-sized sites
  • 30 minutes of flight time
  • 20MP camera
  • 7 km range
  • 1391g (including battery weight)
  • RTK & PPK geotagging available

• DJI Phantom 4 Pro V2.0 (Good)

  • Recommended for beginners to drone flying
  • Great for small to medium-sized sites
  • 30 minutes flight time
  • 20 MP camera (mechanical shutter)
  • 7 kilometers range

Data handling and precautions

In order to utilize drone data, you need to keep the following notes in mind.

💡 Image format To utilize drone data, all images must be in JPG format. Images in other formats may not be processed.

GPS EXIF data Images must have latitude, longitude, and altitude in the GPS EXIF data. GPS EXIF data contains information about the location where the image was taken. Images without GPS EXIF data might not be processed.

Number of images Images must contain at least 30 images. Fewer images can make it difficult to create an accurate 3D model.

Overlap The recommended overlap for images is 80% SIDE OVERLAP and 80% FRONT OVERLAP. Overlap refers to the degree to which images overlap each other. The higher the overlap, the more accurate 3D models can be created.

Supported cameras and sensors We accept photos in JPG format with GPS information, including cameras and camera sensors.

See also

• How to check for GPS EXIF data in an image:
• When you upload an image to the platform, it will be displayed on the satellite image.
• After installing a program called “QGIS”, you can drag the image and import it to see the properties of the image, where you can check the data.
• To check the photo data, you can go to http://metadata2go.com and drag the photo to check it.
• Additional explanation of overlap
• SIDE OVERLAP(recommended setting: 80%)
  Adjust the spacing and number of flight paths. The higher the overlap, the more the paths and the photos between them will overlap, increasing accuracy.
• FRONT OVERLAP(recommended setting: 80%)
  Adjusts the vertical overlap of photos taken while moving forward. Higher overlap improves accuracy, but may result in longer shots and longer flight times.
• Overlap and accuracy
  Overlap refers to the degree to which images overlap each other. The higher the overlap, the more the images overlap each other and the higher the accuracy. However, it is not recommended to increase overlap indiscriminately. Too much overlap can lead to longer shots and longer flight times, which can increase cost and time. High overlap can also lead to lower accuracy if the photo quality is poor.

Supported cameras and sensors

• We accept photos in JPG format with GPS information, including cameras and camera sensors.

How to fly a drone

Drones are operated using the sticks and buttons on the controller. In general, all drones have the same basic controls. Unless there is a different mode setting, the basic operation method is as follows.

1. Turn on the power

• a. Turn on the power of the battery attached to the drone (one short press + long press).
• b. Pull both joysticks on the controller inward (bottom right for the left, bottom left for the right) to start up.

2. takeoff

• Push the left joystick up to ascend.

•  

• 

3. flying

• Use the left and right joysticks to move the drone in the desired direction.

4. landing

• Use the left joystick down and the acceleration/deceleration buttons to descend the drone.

• Joystick operation details
  
  • Up, Down: Raise, and lower the drone's fuselage.
• Left Joystick

•  

• 

  • • Left, Right: Rotate the drone airframe left and right

• 

  • Right Joystick
    
    • Directional movement of the drone

• 

  • Top Left Dial
    
    • Camera angle

• 

  • Top-right dial
    
    • Camera zoom in/out

• 

• Precautions
• Fly in a safe place. Fly in an unpopulated area, and make sure you are clear of other people and obstacles.
• Maintain good visibility. Always be aware of your surroundings when operating your drone, and avoid flying in low visibility conditions.
• Check the weather. Avoid flying in high winds, rain, or snow.
• Practice before flying. If this is your first time operating a drone, practice in a safe location before flying.

•  

• Additional tips
• Mode settings: Your drone has a variety of modes. Understanding what each mode does and choosing the right mode for the situation will help you operate your drone more safely and effectively.
• Setting a path: You can utilize the manual flight mode to set an autonomous path for your shots.
• Drone maintenance: Drones need to be checked and maintained regularly. Key parts of the drone, such as the battery, motors, and propellers, should be checked periodically and replaced as needed.

•