Synchronization

The idea we are trying to achieve is to synchronize 3 ZED Cameras to have same timestamp, each camera on a separate Jetson Nano.

3 Methods tested

• PTP Protocol
• NTP Protocol
• Using GPS Ultimate Breakout Module on Jetson Nano

Final decision was to use PTP, as it is mentioned in ZED Documentation. To use PTP, follow the documentation at https://www.stereolabs.com/docs/video/multi-camera/

Note that Hardware Support is not needed, Software Mode is enough!

Very important note

• When recording via ZED API, don't retrieve timestamp during recording time. For some reason, it will return false readings, which halted us for about a month and a half. Instead, retrieve timestamps after recording, in postprocessing time, which will give the right readings