Signal Synchronization in DAVIS346

[jingcheng wen]

We aim to have one computer collecting vibration signals through Dewesoft, while another computer connects to an event camera DAVIS346 to capture event signals. It is known that the Dewesoft data acquisition system can output an IRIG B-DC signal. Can the event camera receive this signal for synchronization?

If it is feasible, the Dewesoft sync interface uses 4-pin LEMO female sync connectors, and according to the following page (https://docs.inivation.com/hardware/hardware-advanced-usage/external-camera-sync.html), the event camera's connector is RAYMO HR10A-7P-4S+xxx. Are there any relevant connection cables available for purchase?  The diagram below shows Dewesoft's interface for reference.

[Luca Longinotti]

Hello, no, we cannot synchronize with IRIG B, there is no support for understanding the bit codes sent in an IRIG frame to extract the timing data.

A pure PPS signal could be used with the External Input Trigger functionality:

https://docs.inivation.com/hardware/hardware-advanced-usage/external-camera-sync.html#external-input-triggering

to get a relative timestamp to the PPS signal at least.

Regarding the cable, no there is no compatible cable available. You'll have to build it yourself. The manufacturer we propose in our FAQ, Raymo Connectors, is usually happy to do bespoke cables, but you'll have to talk to them and set it up yourself.

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Luca Longinotti (llongi)

Senior Software Engineer
iniVation AG - https://inivation.com/
A SynSense Group company