Trimble Business Center

 View Only
Back to discussions
Expand all | Collapse all

TBC 5.9 Adjust Photo Stations fails with error log file

  • 1.  TBC 5.9 Adjust Photo Stations fails with error log file

    Posted 06-22-2023 22:41

    When Adjusting Photo Stations for DJI Phantom 4 RTK drone flight, the relative adjustment process acts as if it quickly finishes, but fails and spits out a log file with the following two lines:

    [6/22/2023 3:48:35 PM] Error: Child process Reconstruction failed with exit code -1.
    [6/22/2023 3:48:35 PM] Error: Child process Reconstruction failed with exit code -1.

    The same workflow behaves as usual and expected in 5.81.

    Can anyone shed some light on what resources this process is using in the background to help identify the troublemaker?



    ------------------------------
    M Hufford
    ------------------------------


  • 2.  RE: TBC 5.9 Adjust Photo Stations fails with error log file

    Posted 11-23-2024 11:21
    Edited by Zach Edwards 11-23-2024 11:37

    I know that I am late to the party but I am experiencing this for the first time as of yesterday. I was running 2024.01 and now I am on the latest (2024.10). Any suggestions here?

    Edit....Ok so I deleted the UAS Box folder and then started TBC again and proceeded with the Relative Adjustment and it failed toward the end with a different error...

    "[11/23/2024 11:35:36 AM] Error: Add GCPs to your project and measure them.
    [11/23/2024 11:35:36 AM] Error: Child process Precise AT failed with exit code -19."

    This is odd because these are images that are already PPKed and there are no GCPs. 



    ------------------------------
    Zach Edwards
    ------------------------------

    Original Message


  • 3.  RE: TBC 5.9 Adjust Photo Stations fails with error log file

    Posted 11-23-2024 15:51

    Ok so it turns out that there are vastly varying elevations on the photos. A chunk show around 244m and the others show upwards of 2600m. It looks like the trajectory processing upstream from TBC was the culprit. 



    ------------------------------
    Zach Edwards
    ------------------------------

    Original Message


  • 4.  RE: TBC 5.9 Adjust Photo Stations fails with error log file

    Posted 11-24-2024 23:42

    Hi Zach,

    was it an issue created by the drone or did the TBC processing cause the trouble?

    Let us know, if the data is fine, but the baseline processing of TBC has a bug.

    We hope you like the new features of TBC photogrammetry v2023 and newer. We added for this version a couple of new drones for baseline processing in TBC! The Skydio X10 series and the FreeFly drones! We also complemented the DJI drones.

    Cheers,
    Tom



    ------------------------------
    Thomas Widmer
    ------------------------------

    Original Message


  • 5.  RE: TBC 5.9 Adjust Photo Stations fails with error log file

    Posted 11-26-2024 13:20

    To follow-up much later, there was a problem with how TBC 5.9 handled the principle point for the drone camera that was preventing a successful relative adjustment. The helpful experts from imaging support walked me through using UASMaster as an alternative. The issue has not been a problem in later versions of TBC.



    ------------------------------
    M Hufford
    ------------------------------

    Original Message