网状光网络物理层智能实时监测保护设备设计*

南京大学学报(自然科学版) ›› 2010, Vol. 46 ›› Issue (1): 10–19.

网状光网络物理层智能实时监测保护设备设计*

韩瑜, 张旭苹 ** , 王顺

出版日期:2015-03-27 发布日期:2015-03-27
作者简介: ( 南京大学光通信工程研究中心, 南京, 210093)
基金资助:

Design of intelligent real?time monitoring and protecting device for the physical layer of mesh optical network

H an Yu, Zhang Xu?p ing, Wang Shun

Online:2015-03-27 Published:2015-03-27
About author: ( Institute of Optical Communication Engineering, Nanjing University, Nanjing, 210093, China)

摘要/Abstract

摘要： 本文介绍了一种新型的适用于网状光网络物理层保护的智能实时监测保护设备的开发设计方案. 设备采用基于? 双发选收模式的 1+ 1 保护设计方案, 以 ARM7 系列微处理器 S3C44B0X
( ARM 7TDMI 内核) 为硬件平台, 移植 U - Boot( 作为 Boot Loader) 和嵌入式 CLinux 操作系统到S3C44B0X 上作为软件平台, 在设备的光路设计中, 利用 M ! N 无阻塞型光开关矩阵或 M ! N 严格无阻
塞型( 光开关+ 合波器)阵列实现保护光信号的选择接收和转发. 设备的主要功能由在嵌入式CLinux 操作系统环境下运行的智能实时监测保护应用程序实现, 应用程序的核心是利用保护光路径自动建立
算法事先为每条工作光路径在保护光纤网络中寻找并建立对应的保护光路径. 设备对工作光路径中的光功率进行实时监测, 当工作光路径发生故障时, 及时切换到保护光路径. 本文最后以 4 节点光网状网
为例, 给出了保护光路径自动建立算法的仿真结果. 本文中设计的智能实时监测保护设备是真正无人值守的适用于网状光网络物理层实时监测保护的设备, 以全光保护方式实现了网状光网络的透明无阻断通信.

Abstract: In this article, a new design of the intelligent realtime monitoring and protecting device which is supposed to better adapt to the physical layer protection of the mesh optical network is introduced. The device obeys
the principle of 1+ 1 protection method which is based on the dual fed selective receiving mode. T he ARM7 series microprocessor ∀∀ ∀ S3C44B0X (with an ARM7T DMI core) is used as the hardware platform of the device, UBoot
( as the boot loader) and the embedded CLinux operation system are transplanted to S3C44B0X as the software platform as well. In the optical structure design of the device, a kind of the M ! N nonblocking optical switch
matrix or the M ! N strict non blocking optical switch and optical combiner array is used to select, receive and retransmit the protecting light signal. T he primary function of the device is implemented by the intelligent realtime
monitoring and protecting application which runs under the embedded CLinux operation system environment. With the algorithm of automatic establishment of the protecting light path, the intelligent real time monitoring and
protecting application establishes the protecting light path in the protection fiber network for each corresponding working light path in advance. And then a protecting light path route table will be dynamically established and
maintained by each device. During the establishment of the protecting light paths, devices communicate with each other by using T CP/IP protocol. And after the accomplishment of the protecting light path establishment, the
protecting light path route table of one device will be broadcasted to all the other devices. By means of converting the optical signal into the electric ones, the real time optical power of the working light paths is monitored by the
device. As soon as the fault of the working light path occurs, the device will switch to the corresponding protecting light path immediately. In the end of this article, the algorithm of automatic establishment of the protection light
path is assumed to be implemented in a 4 node mesh optical network, and the emulation result is given. The device
proposed in this article is a kind of real unattended intelligent real ?time monitoring and protecting device, which is suitable for the physical layer protection of mesh optical network. So by applying the proposed intelligent realtime
monitoring and protecting device, the transparent uninterrupted communication of mesh optical network could be achievable in the way of the full optical protection.

韩瑜, 张旭苹 ** , 王顺. 网状光网络物理层智能实时监测保护设备设计*

[J]. 南京大学学报(自然科学版), 2010, 46(1): 10–19.

H an Yu, Zhang Xu?p ing, Wang Shun . Design of intelligent real?time monitoring and protecting device for the physical layer of mesh optical network

[J]. Journal of Nanjing University(Natural Sciences), 2010, 46(1): 10–19.

参考文献

[ 1 ] Huang L B, Zhang J, Zheng Y S. The real-ime supervisory system for optical cable. Study onOptical Communications, 2001( 2): 47~ 50. ( 黄龙波, 张靖, 郑彦升. 光缆实时监测系统. 光通信研究, 2001(2): 47~ 50).
[ 2 ] Cao J Z, Bao Z W, Zhang G Z. Research on opti-al fiber cable line automatic monitoring system. Optical Fiber and Electric Cable, 2002( 6) : 33~ 测相关问题的探讨. 光纤与电缆及其应用技术, 2002(6): 33~ 37) .
[ 3 ] Zhang L, Li X, Da Q, et al. U tility model patent of intelligent optical fiber protection device( Ap-plication Number: 200420025242- 8 . Putian Communication Co. , Ltd. , Nanjing, 2004. 3.
(张良, 李想, 达琦等. 智能化光纤保护装置实用新型专利说明书 ( 专利号: 200420025242 ? 8) . 南京普天通信股份有限公司, 2004 ? 3) .
[ 4 ] Chen X. Monitoring and management system of fiber and fiber cable. Telecommunications for Electric Power System, 2002( 5) : 11~ 16. ( 陈希. 光纤和光缆的监测与管理系统. 电力系统通信, 2002, 23(5): 11~ 16) .
[ 5 ] Meng H, Zhao Z, Li H Z, et al. Design and im-plementation of monitoring and detecting system of fiber cable. Computer Engineering, 2005, 31 (4): 195~ 196, 214. ( 孟 ? 和, 赵 ? 政, 李华舟等. 光缆监测系统的设计与实现. 计算机工程, 2005, 31( 4) : 195~ 196, 214).
[ 6 ] Saradhi C V, Murthy C S R. Dynamic establish-ent of differentiated survivable lightpaths in WDM mesh networks. Computer Communica -ions, 2004, 27( 3) : 273~ 294.
[ 7 ] Sun Y C, Li C Y. Development of optical power monitor based on embedded -ystem. Instrument Technique and Sensor, 2006(8): 7~ 9. (孙延春, 李长有. 基于嵌入式系统的光功率监测仪的研制. 仪表技术与传感器, 2006( 8) : 7~ 9) .
[ 8 ] Cao J Z, Bao Z W. Optical power real -ime su-pervision for optical cable. Study on Optical Communications, 2003( 2): 34~ 37. ( 曹俊忠, 鲍振武. 光缆光功率实时监测. 光通信研究, 2003( 2) : 34~ 37) .
[ 9 ] LiY, Rong P X. Principle and application of em-edded ?clinux system based on S3C44B0X. Beijing: Tsinghua University Press, 2005, 109~117. ( 李岩, 荣盘祥. 基于 S3C44B0X 嵌入式CLinux 系统原理及应用. 北京: 清华大学出版社, 2005, 109~ 117) .
[10] Zhang H K, Zhang S D, Liu W H. Principle and technique of router. Beijing: National Defense Industry Press, 2003, 71~ 115. ( 张宏科, 张思东, 刘文红. 路由器原理与技术. 北京: 国防工业出版社, 2003, 71~ 115).37

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