Diagnosing and Fixing Connectivity Errors with Ladybug5
Technical Application Note TAN2014013
Revised October 13, 2016
Technical Application Note (TAN2014013): Diagnosing and Fixing Connectivity Errors with Ladybug5
This application note describes the how to diagnose a poor connection in a Ladybug5 system and provides recommendations for how to improve connectivity.
Generally speaking, connectivity errors occur because the amount of data to be transmitted exceeds the capacity of the connection between camera and computer. Connectivity errors manifest in a variety of ways such as skipped frames, torn images, or failure to enumerate the camera.
LadybugCapPro collects event statistics that display events over time, including image inconsistency errors, link recovery counts, and skipped frames. If the connection is good, the only event value that should increase is the total number of frames. Constantly increasing values for the other events can indicate poor connectivity.
To view Event Statistics:
In the LadybugCapPro main window, click on the green button on the lower left corner. (This button turns red if errors were detected in the last 10 seconds.)
Point Grey is continually testing for solutions that maintain optimum connectivity while supporting longer distances. Although a shorter cable (5 meters or less) is recommended, a hub may be used to extend the cable length beyond 5 meters and to improve connectivity. Point Grey recommends using a hub when using a laptop or when using cables longer than 3 meters.
The Ladybug5 has worked successfully with the following systems:
Point Grey does not recommend the 5 meter ACC-01-2301 blue cable for use with the Ladybug5 camera.