Study On Optical Communications, Volume. 51, Issue 1, 230166-01(2025)

High Precision Delay Measurement Mechanism of Optical Communication Network in Valve Chamber of Oil and Gas Pipeline

Yafeng LI1、*, Baida QU1, Yun LIU1, Yunpeng WANG1, Yingjing YAO1, Lei ZHANG2, and Jingxiang WANG3
Author Affiliations
  • 1China Oil & Gas Pipeline Network Corporation, Beijing 100013, China
  • 2China Petroleum Pipeline Engineering Corporation, Langfang 065000, China
  • 3Beijing University of Posts and Telecommunications, Beijing 100876, China
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    Figures & Tables(10)
    OSU single frame general overhead diagram
    Position diagram of DM
    The diagram of unidirectional DM flow
    The diagram of bidirectional DM flow
    The topology of the test network
    The experimental diagram of unidirectional DM
    The experimental diagram of bidirectional DM
    • Table 1. The definition of DM overhead

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      Table 1. The definition of DM overhead

      M32/256DM开销定义
      #1DM[1]测量标识,DM[1]=1,表示有DM;DM[1]=0,表示无DM。
      #2DM[2]DM模式,DM[2]=1,表示绝对DM(可选);DM[2]=0,表示双向DM。
      #3~#32DM[3∶32]①DM[2]=1绝对DM模式下,DM[3∶32]:DM时戳值,表示测量发起时间,以ns为单位。②DM[2]=0双向DM模式下,DM[3∶6]:序列号,用于识别不同时刻发起的双向DM;DM[7∶32]:驻留时间,表示DM开销在环回节点停留的时间,以ns为单位计时。
    • Table 2. Unidirectional DM results

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      Table 2. Unidirectional DM results

      颗粒度/Mbit/s场景路径时延/ns
      1001A(上管道)-B(穿通)-C(穿通)—D(下管道)14 550
      2A(上管道)-B(穿通)-C(下管道)9 144
      1 0003A(上管道)-B(穿通)-C(穿通)—D(下管道)14 521
      4A(上管道)-B(穿通)-C(下管道)9 070
    • Table 3. Bidirectional DM results

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      Table 3. Bidirectional DM results

      颗粒度/Mbit/s场景路径时延/ns
      1001A(上管道)-B(穿通)-C(穿通)—D(下管道)29 108
      2A(上管道)-B(穿通)-C(下管道)18 303
      1 0003A(上管道)-B(穿通)-C(穿通)—D(下管道)28 995
      4A(上管道)-B(穿通)-C(下管道)18 156
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    Yafeng LI, Baida QU, Yun LIU, Yunpeng WANG, Yingjing YAO, Lei ZHANG, Jingxiang WANG. High Precision Delay Measurement Mechanism of Optical Communication Network in Valve Chamber of Oil and Gas Pipeline[J]. Study On Optical Communications, 2025, 51(1): 230166-01

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    Paper Information

    Category:

    Received: Sep. 15, 2023

    Accepted: --

    Published Online: Feb. 24, 2025

    The Author Email: LI Yafeng (liyf@pipechina.com.cn)

    DOI:10.13756/j.gtxyj.2025.230166

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