|
Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2018 Vol.19 No.11 P.1328-1339
Use of a coded voltage signal for cable switching and fault isolation in cabled seafloor observatories
Abstract: Cabled seafloor observatories play an important role in ocean exploration for its long-term, real-time, and in-situ observation characteristics. In establishing a permanent, reliable, and robust seafloor observatory, a highly reliable cable switching and fault isolation method is essential. After reviewing the advantages and disadvantages of existing switching methods, we propose a novel active switching method for network configuration. Without additional communication path requirements, the switching method provides a way to communicate with a shore station through an existing power transmission path. A coded voltage signal with a distinct sequence is employed as the communication medium to transmit commands. The analysis of the maximum bit frequency of the voltage signals guarantees the accuracy of command recognition. A prototype based on the switching method is built and tested in a laboratory environment, which validated the functionality and reliability of the method.
Key words: Cabled seafloor observatories, Cable switching and fault isolation, Coded voltage signal, Maximum bit frequency
关键词组:
References:
Open peer comments: Debate/Discuss/Question/Opinion
<1>
DOI:
10.1631/FITEE.1601843
CLC number:
TP271
Download Full Text:
Downloaded:
2316
Download summary:
<Click Here>Downloaded:
1589Clicked:
6011
Cited:
0
On-line Access:
2018-12-14
Received:
2016-12-20
Revision Accepted:
2017-05-27
Crosschecked:
2018-11-08