The Scanning Process

New scans can be started using the blue scan button from the main screen, either from the list view or the map view.

You will then be taken to the scan function, where the following options are available:

The scanning process can be canceled using the Cancel button located at the top left of the screen.

In the top center, the accuracy icon provides information about the scan's positional accuracy. Tapping this icon opens a detailed view of the current accuracy, including whether RTK Fix is available. High-precision geo-positioning of the collected data is only ensured when RTK Fix is active.

To the right of the accuracy icon is the antenna symbol, which indicates whether a connection to the external GNSS receiver exists. Tapping this icon opens a detailed status view. Here, the user can initiate a reconnection to the GNSS receiver or disconnect an existing one.

The Save button is located at the top right corner. Saving is only possible once the scanning process has ended. A scan can be discarded and repeated if needed.

The bottom area displays all available modes. From left to right, the user can add photos, point objects, and line objects to the scan. By default, Photo Mode is preselected.

Start Scanningning process can be canceled using the Cancel button located at the top left of the screen.

The scanning process is initiated once by tapping the blue scan button, and it is stopped by pressing the save button. The process can be canceled at any time using the X (cancel) icon.

During scanning, all elements that will later be part of the 3D model are displayed clearly without overlay. Blue-colored areas will not be included in the final scan, either because they have not yet been captured or are too far away.

After a successful connection with the GNSS receiver, scanning should only be started when the accuracy is below 1.5 cm and an RTK Fix is active—this is indicated by the accuracy icon turning green.

Alternatively, after a waiting period of 90 seconds, scanning can also be started with lower positional accuracy. This also applies when no external GNSS receiver is connected. In such cases, the app will note the imprecise positioning in the scan and record it for later display in the detail view.

This ensures that scanning is possible at any time, regardless of signal quality.

Figure: Waiting period due to no GNSS device connected

For better geographic positioning of a 3D scan, it is advisable to move along the desired object during the scanning process and to capture it from as many angles as possible. Additionally, it is recommended to record features such as trees or fences using photos rather than scanning them.

Take Photos

The Photo Mode is located at the bottom left. Photos can be taken during the scanning process. Photos can also be added after saving, as long as the scan has not yet been uploaded.

Add Point and Line Objects

Point objects can be added until the scan has been saved. Unlike photos, it is not possible to add point objects afterward. A viewfinder indicates the position of the point, and tapping the shutter button confirms its placement.

Creating a line works in a similar way. As long as the line is being edited, each new point is connected to the previously placed one. It is possible to undo the placement of the last point. To finish a line, it must be confirmed by tapping the checkmark button. A line requires at least two points to be created.

To delete a line, it must first be selected using the viewfinder; once selected, its points are displayed in yellow. After selection, the entire line can be deleted.

Point and line objects must be assigned to categories. This is done using the selection field above the shutter button. You can choose between:

• Main trenches and house connection trench
• Building edges
• Duct interruption (Fitting), House Entry Point APL, Ball marker, Duct end,
• Closures, distribution point

Figure: Add Point Object                                               Figure: Confirm Point Object “Coupling”

Figure: Add Line Object                                                  Figure: Confirm Line Object “Main Road” 

Optimize Positioning

For centimeter-accurate positioning, a stable internet connection and a connection to the external GNSS receiver are absolutely essential. Additionally, the quality of the positioning can be improved by moving several meters during the scanning process.

The accuracy icon uses color to indicate the expected positioning accuracy of the scan. The accuracy is also displayed numerically in meters or centimeters. The color scale ranges from red (poor accuracy) to yellow (moderate accuracy) and green (good accuracy). It is recommended to wait for the icon to turn green before starting the scan. After turning on the GNSS receiver for the first time, reaching green status may take longer than it will in subsequent uses.

Accurate positioning can only be guaranteed when the accuracy icon is green, meaning that an RTK Fix is active—this is essential for high-precision positioning.

Figure: Warning – No GNSS Device Connected

The progress of the accuracy can be tracked via this very icon and examined in detail by clicking on the button.

Figure: Accuracy Detail View

Naming, Processing, and Saving of Scans

If the scanning process is to be ended, this is done using the save button. If the maximum scan size is reached beforehand, the scanning process will automatically stop. Pressing the save button initiates processing. Once processing is complete, the detail page of the recently captured scan will open.

Figure: Processing the Scan

With an active internet connection, the current address is determined based on the GPS coordinates and used as the title of the scan.