Low-cost passive optical network for video monitoring
A passive optical network and video surveillance technology, applied in the field of passive optical networks, can solve the problems that the performance cannot be well guaranteed, the video data bandwidth is greatly affected, and the algorithm wastes the cost, so as to save the network cost and improve the transmission. The effect of distance, good upgradeability
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[0027] The present invention will be further described below in conjunction with the accompanying drawings. Suppose there are N ONUs in the network (N=16, 32, 64, 128, etc.).
[0028] A low-cost passive optical network for video monitoring, characterized in that: the network topology is a star or tree structure, including an optical line terminal OLT, and the optical port of the OLT network is connected through a single G.652 optical fiber To one or more optical ports of the passive optical splitter, the passive optical splitter is connected to the optical ports of multiple optical network units ONU or other passive optical splitters through multiple G.652 optical fibers at the splitting port An optical combining port of the beam splitter, and the ONU is connected to an optical splitting port of the passive optical beam splitter through a single G.652 optical fiber.
[0029] The internal structure of the OLT is that the electrical signal output of the pulse generator is conne...
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