This invention discloses a cross-interface low-latency
video transmission system and method for wearable navigation terminals. The
system includes a capture and encoding end, an inter-board transmission end, a receiving and forwarding end, a
network output end, and a back-end access end. The transmission steps are as follows: generating a video
stream; segmenting it into data packets and sending them; the receiving and forwarding end outputting a READY
signal; the receiving and forwarding end performing header
parsing, integrity
verification, reassembly, and cache writing on the data packets; the receiving and forwarding end extracting and caching parameter set information; when a new
client connects, it enters a
random access waiting state, and after detecting a decorable access point, it sends parameter set information and subsequent video data; the video data is output to the back-end access end in an adapted form; when slow
client read, transmission obstruction, or cache backlog is detected,
back pressure resynchronization is performed. This invention can achieve low-latency, recoverable
video transmission under low-bandwidth inter-board link conditions, and is compatible with original TCP access and
WebSocket /
JPEG access while keeping the underlying link unchanged.