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

A technology of passive optical network and traffic information, applied in the field of communication network along the highway, to achieve the effect of improving utilization rate, reducing construction investment cost, convenience and cost reduction

Inactive Publication Date: 2007-04-25
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it solves the problem of accessing traffic information along the highway and fiber optics to the roadside, and can realize unified processing and management of traffic information on this basis

Method used

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

Examples

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Embodiment Construction

[0038] The advantages and features of the present invention, as well as the method of carrying out the present invention, may be more readily understood by referring to the following detailed description of exemplary, non-limiting embodiments and accompanying drawings. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. Throughout the specification, the same reference numerals designate the same parts.

[0039] In the form of EPON, a traffic information transmission management network is established. The optical cable is drawn out from the central bureau of traffic information management and laid along the highway. Every about 20km, an optical fiber...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): H04B10/20H04B10/278
Inventor 周煜张永军张杰顾畹仪
Owner BEIJING UNIV OF POSTS & TELECOMM
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