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Sensors (Basel). 2015 Jul 23;15(8):17926-43. doi: 10.3390/s150817926.

Development of a Plug-and-Play Monitoring System for Cabled Observatories in the East China Sea.

Yu Y1, Xu H2, Xu C3.

Author information

1
State Key Laboratory of Marine Geology, Tongji University, 1239 Siping Road, Shanghai 200092, China. 10yuyang@tongji.edu.cn.
2
State Key Laboratory of Marine Geology, Tongji University, 1239 Siping Road, Shanghai 200092, China. huipingxu.tj@gmail.com.
3
State Key Laboratory of Marine Geology, Tongji University, 1239 Siping Road, Shanghai 200092, China. xcw@tongji.edu.cn.

Abstract

Seafloor observatories enable long term, continuous and multidisciplinary observations, promising major breakthroughs in marine environment research. The effort to remotely control in situ multidisciplinary equipment performing individual and cooperative tasks is both a challenge and a guarantee for the stable operations of functional observatories. With China starting to establish ocean observatory sensor networks, in this study we describe a monitoring system for cabled observatories in the East China Sea (ESOMS) that enables this effort in a plug and play way. An information oriented monitoring architecture for ESOMS was first introduced, derived from a layered control model for ocean observatory sensor network. The architecture contained three components and enabled bidirectional information flow of observation data and commands, based on which architecture components were designed to enable plug-and-play control within related model layers. A control method enabled by general junction box (GJB) and ocean sensor markup language (OSML) was thus proposed as the plug-and-play solution for implementing ESOMS. The GJB-OSML enabled control method (GOE Control Method) mainly actualized two processes, one of which was that the in situ GJB interfaced and represented every attached sensor as a Sensing Endpoint in the cabled observatory network. The other process was that the remote ESOMS utilized the same IP/Port related information modeled by OSML to create/operate a Function Node acted as agent of the in situ sensor. A case study for using ESOMS in the Xiaoqushan Seafloor Observatory was finally presented to prove its performance and applicability. Given this successful engineering trial, the ESOMS design and implementation could be applicable and beneficial for similar efforts in future construction of seafloor observatory network both at home and abroad.

KEYWORDS:

cabled observatories; monitoring system; ocean sensor network; plug-n-play; remote control

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