Generating Point Clouds
-
After flying the drone, insert the SD card containing photo data from the drone into the SD card slot of the EdgeBox.
① Status LED
② SD card slot
③ Ether cable port
④ USB slot（USB3.0）
⑤ SIM card slot
⑥ Water-proof USB slot（USB2.0）
Before inserting the SD card, please check the direction and insert straightly. If you force to insert, may damage SD card or this product.
If insert wrongly and cannot take out the SD card, please contact Smart Construction Helpdesk. Please do not take out the SD card by inserting tweezers and so on, you may damage the product by short circuit.
-
Tap the “Point Cloud Generation” button on the top screen of the project.
-
Enter the point cloud name and press OK.
Make sure that “Use PPK Only” is selected.
You can also improve the point cloud accuracy by using GCPs.
Using RTK flight data will be the same except the PPK data processing process.
Destination of the generation process. “SMART CONSTRUCTION Edge” to process onboard the Edge device.
Destination of the generation process’s. SMART CONSTRUCTION Cloud to send the unprocessed drone data(photos) via Edge to SC Cloud SfM for processing. This will require SfM Credits for processing.
Send to the cloud. Select the SC Dashboard project tot automatically send the processed data once completed to the Dashboard via the Edge cellular.
Reservation of the point Cloud can automated processing from PPK to Upload-to-Dashboard without manual intervention. ''Reservation of the point Cloud ‘is not available GCP processing.
-
Tap the "Import Flight Data" button and select the drone data to upload to the EdgeBox from the displayed dialog. Flight data can be imported from SD or USB.
"If Edge 2 cannot be included in the drone photo, a GCP marker can be used to improve the accuracy of the point cloud. When Edge 2 is included in the drone photo, it serves as a GCP, allowing high accuracy with PPK-only processing."
The imported data will be listed. You can also select and import multiple data.
-
Check the flight data to generate point cloud from the imported data list and tap " Start PPK processing" button.
See details bellow of the recommended settings.
Point Cloud delivers rapid 3D data for volume calculations only. Use it when quick data turnaround is needed. Selecting Orthophoto increases processing time.
※If you tap ''Conditions which was able to generate point cloud'' The number of photos loaded and the maximum number of photos processed at each density can be checked.
Tick on “ Generate point cloud for higher-precision accuracy check” before generating point cloud. This increases the point cloud density in the vicinity of the Check Points.
Unnecessary object Removal:
When you toggle ON, it removes unnecessary objects, such as buildings and vehicles, that are not needed for soil volume calculations.
Press “Select Category” to choose the category for removal or to retain.
It is recommended to Retain all objects.
“Short grasses" can remove/retain all Short grasses, other vegetation such as tall trees will be removed, and "Road Surface" can remove/retain road surfaces, including concrete. The “curing sheet” could remove/retain a green or blue sheet on site.
Point Cloud Density ：Adjusts the density of the point cloud
３D accuracy check requires Ultra high density. There’s area size limitation with this setting setout in the table below.
|
level |
density |
Maximum processing area |
|||
|
Point cloud + ortho +Unnecessary object Removal point cloud |
Point Cloud + Ortho |
Point cloud+ Unnecessary object Removal point cloud |
Point clouds only |
||
|
Ultra-high density |
280p/m2 |
5 ha |
5 ha |
10 ha |
10 ha |
|
High-density |
100p/m2 |
15 ha |
15 ha |
30 ha |
30 ha |
|
Standard density |
16p/m2 |
50 ha |
50 ha |
50 ha |
50 ha |
Ortho and DEM image generation:
Generate ortho (sky photo) and DEM (Digital Elevation Model).
If you do not turn on ortho generation, you will not be able to output an image showing the verification point positions on the ortho, which is the 3D accuracy check report material.
-
A dialog showing the PPK Fix rate will appear, check the rate and press "Generation Start".
A low PPK Fix rate may affect the accuracy of the resulting point cloud. At the point where the red × mark on the drone flight route has a worse acquisition of the drone location. Please confirm and fly again if necessary.
-
The point cloud viewer screen shows up and the point cloud generation process starts. During this process, it is possible to switch to another window and perform the other work. You can check the generated point cloud by selecting it from the list on the project top screen.
To generate a Digital Elevation Model (DEM), both the Unwanted Object Analysis and Ortho Image Generation settings must be both ON.
If you turn off SMART CONSTRUCTION Edge during the processes below, the data could be corrupted, or the system doesn’t work properly any more.
Please turn off after these processes are done.
・Point cloud generation
・PPK logging
・Point cloud uploading
・Data exporting