Optimal communication frequency for switching cabled ocean networks with commands carried over the power line

Yan-hu CHEN; Yu-jia ZANG; Jia-jie YAO; Gul MUHAMMAD

doi:10.1631/FITEE.1900125

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Optimal communication frequency for switching cabled ocean networks with commands carried over the power line

Regular Papers | Updated：2022-05-19

- Optimal communication frequency for switching cabled ocean networks with commands carried over the power line
- 基于电力线命令传输的缆系海洋网络切换的通信频率优化研究
- Frontiers of Information Technology & Electronic Engineering Vol. 20, Issue 10, Pages: 1331-1343(2019)
- Affiliations：
  
  State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou 310027, China
- Author bio：
  
  Yan-hu CHEN, E-mail: yanhuchen@zju.edu.cn
- Funds：
- DOI：10.1631/FITEE.1900125
  CLC： TP271
- Received：04 March 2019，
  
  Revised：2019-10-10，
  
  Published：2019-10
- Accepted：
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Yan-hu CHEN, Yu-jia ZANG, Jia-jie YAO, et al. Optimal communication frequency for switching cabled ocean networks with commands carried over the power line[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(10): 1331-1343.
DOI：

Yan-hu CHEN, Yu-jia ZANG, Jia-jie YAO, et al. Optimal communication frequency for switching cabled ocean networks with commands carried over the power line[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(10): 1331-1343. DOI： 10.1631/FITEE.1900125.

摘要

具有树状或环状拓扑的缆系海洋观测网在海洋探测中发挥着重要作用。由于现场维护耗时长，海缆开断技术能主动开断控制网络中的分支网络，是提高系统可靠性和实用性的关键。提出一种新型网络结构控制方法，即翻转电力传输极性，通过调制线上电流发送低频数字信号，并将含有地址和命令的信息广播到网络中所有分支单元。分支单元对接收的信息解码并执行相应的控制命令。针对海缆寄生参数、网络规模和分支单元数目对电力线上通信频率的影响进行理论研究和仿真，通过权衡通信速率和准确性得到一种最优通信频率，并在样机上实验验证。结果表明，基于该最优通信频率的缆系海洋观测网开断控制技术可有效提高开断准确性和配置速率。

Abstract

Cabled ocean networks with tree or ring topologies play an important role in real-time ocean exploration. Due to the time-consuming need for field maintenance

cable switching technology that can actively switch the power on/off on certain branches of the network becomes essential for enhancing the reliability and availability of the network. In this paper

a novel switching-control method is proposed

in which we invert the power transmission polarity and use the current on the power line as the digital signal at low frequency to broadcast information with the address and commands to the network

and the corresponding branching unit (BU) can decode and execute the switching commands. The cable's parasitic parameters

the network scale

and the number of BUs

as the influencing factors of the communication frequency on the power line

are theoretically studied and simulated. An optimized frequency that balances the executing accuracy and rate is calculated and proved on a simulated prototype. The results showed that the cable switching technology with optimized frequency can enhance the switching accuracy and configuring rate.

关键词

Keywords

references

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