Access node device and system based on gigabit-Ethernet passive optical network

Abstract

The invention provides an access node device based on a gigabit-Ethernet passive optical network. The access node device comprises a power module, an access node MAC layer module, a high-speed physical layer module and a user service processing module. The power module is respectively and electrically connected with the access node MAC layer module, the high-speed physical layer module and a photovoltaic conversion module. The photovoltaic conversion module is in communicating connection with the access node MAC layer module through the high-speed physical layer module. The invention further provides a corresponding system. According to the device and system, the compatibility of the gigabit Ethernet can be better, the optical fiber network bandwidth can be larger, and the outside electromagnetic environment interference resisting performance is enhanced. An FPGA logical circuit module is adopted for achieving network logical link layer protocols, and the real-time performance of network transmission is improved by combining a light burst transmission technology and a high-speed physical layer serial chip. The device and system are simple in overall frame, and can fast construct an optical fiber network on the industrial site by being matched with central nodes.

Description

technical field [0001] The present invention relates to the technical field of optical fiber network communication, in particular to an access node device based on a gigabit passive optical network. Background technique [0002] In various industrial sites and 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 Optical Network for Ethernet. The existing wireless networks used in industrial sites and vehicle-mounted systems are all borrowed from the backbone network technology. The network is not only narrow in bandwidth, but also easily interfered by external signals. In industrial sites and vehicle-mounted systems, the working conditions are harsh, making the site network very unstable. Contents of the invention [0003] Aiming at the defects in the...

AI Technical Summary

Problems solved by technology

In vehicle networking and industrial sites, network communication requires high real-time performance to meet the rapid response requirements of automotive sensors and electronic control devices. At the same time, with the development of vehicle information systems, the demand for communication bandwidth has also increased significantly. At present, in the prior art, there is no technology and product that can not only satisfy high real-time performance but also provide large-capacity bandwidth. The gigabit passive optical fiber network access node device of the present invention solves the above-mentioned practical problems, and has high real-time performance and large-capacity Capacity communication bandwidth, innovative and forward-looking

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