Center node device based on gigabit passive optical network

Abstract

The invention relates to the technical field of optical fiber network communication, and provides a center node device based on a gigabit passive optical network. The device comprises a power module, a center node MAC layer module, a center node high-speed physical layer module and a photoelectric conversion module, wherein the power module is respectively connected with the center node MAC layer module, the center node high-speed physical layer module and the photoelectric conversion module electrically and provides electric energy for the center node MAC layer module, the center node high-speed physical layer module and the photoelectric conversion module, the center node high-speed physical layer module is in communication connection with the center node MAC layer module, and the photoelectric conversion module is in communication connection with the center node high-speed physical layer module and is connected with access nodes through optical fibers. The device has the advantages that a gigabit Ethernet is good in compatibility, optical network bandwidth is large, and outside electromagnetic environment interference is avoided.

Description

technical field [0001] The invention relates to the technical field of optical fiber network communication, in particular to a central node device based on a gigabit passive optical network. Background technique [0002] In various industrial sites and in-vehicle systems, there are a large number of images and signal transmissions, such as CCD image systems, radar, GPS navigation, etc., and the data between these devices must be shared, exchanged and converted, which requires the rapid construction of a system based on Passive fiber optic network for Ethernet. The existing wireless networks used in industrial sites and in-vehicle systems are all borrowed from the backbone network technology, and their networks are not only narrow in bandwidth, but also easily interfered by external signals. Work is very unstable. SUMMARY OF THE INVENTION [0003] In view of the defects in the prior art, the purpose of the present invention is to provide a central node device based on a g...

AI Technical Summary

Problems solved by technology

However, the existing wireless networks used in industrial sites and vehicle-mounted systems are all borrowed from the backbone network technology. The network bandwidth is not only narrow, but also easily interfered by external signals. In industrial sites and vehicle-mounted systems, the working conditions are harsh, making the site network work is very unstable

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