Transmission management system for traffic information by passive optical network of linear topology

Abstract

The invention relates to an information transmission network used in traffic information system. Wherein, it uses the cable along road, uses inactive optical network technique, accesses into real-time traffic informant on road, and supplies relative Qos assurance; based on the topology character of road, changing the optical distribution network into point-to-multipoint bus structure, building traffic information transmission network; the network in inactive optical network, at each OLT/ONU, it has initial network manage ability; the traffic information collected by OLT can be accessed into traffic information special network, at the junction of system, to be managed and processed.

Description

technical field [0001] The invention relates to communication, computer network, optoelectronics, integrated circuit and software technology, and is applicable to the field of communication networks along highways (that is, traffic communication networks along highways, highways, overpasses and bridges). Specifically refers to the traffic information transmission management system using passive optical network access. Background technique [0002] The transportation industry is a supporting sector of the national economy and a basic industry related to the national economy and people's livelihood. With the rapid economic growth in recent years, the restrictive effect of traffic has become increasingly apparent. The lag of traffic informatization makes it impossible to carry out real-time monitoring and macro-control in a timely manner in the handling of highway emergencies. [0003] The complete traffic information transmission management system consists of three parts, na...

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Problems solved by technology

At the same time, it solves the problem of accessing traffic information along the highway and fiber opti

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