Lightbridge and OcuSync protocol description

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Hi,
I need a protocol description similar to MAVLink (https://arxiv.org/pdf/1906.10641.pdf) for DJI Lightbridge 1,2; OcuSync 1,2,3 only.
This description should contain the frame structure and a description of all types of transmitted messages and their fields.

Can anyone help me?
 
You can get info on DUML packets:
dji-firmware-tools wiki introduction

They're the same for these protocols; though specific commands which each module understands is a bit different for each platform.

For how this is merged with encoded video, and pushed to transceiver - you'd have to decode FPGA Bitstream to get Lightbridge, and get NDA-protected documentation of a chip for Occusync and disassemble the software which works on it.

Or get in contact with a few companies which already did that. But such data is quite expensive - only anit-UAV companies have it.

For details - go to the guys from that wiki page. I don't think there's anyone here who messed with it, and they created tools which can send and receive the DUML packets. What we do is only using them.
 
Hi,
I need a protocol description similar to MAVLink (https://arxiv.org/pdf/1906.10641.pdf) for DJI Lightbridge 1,2; OcuSync 1,2,3 only.
This description should contain the frame structure and a description of all types of transmitted messages and their fields.

Can anyone help me?
Did you find out the in-depth details of Lightbridge protocol? Like how are the telemetry and video signal are encapsulated into one OFDM modulated signal.
 

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