Abstract
Seafloor observatories enable continuous power supply and real-time bidirectional data transmission, which marks a new way for marine environment monitoring. As in situ observation produces massive data in a constant way, the research involved with data acquisition, data transmission, data analysis, and user-oriented data application is vital to the close-loop operations of seafloor observatories. In this paper, we design and implement a sensor web prototype (ESOSW) to resolve seafloor observatory information processing in a plug-and-play way. A sensor web architecture is first introduced, which is information-oriented and structured into four layers enabling bidirectional information flow of observation data and control commands. Based on the layered architecture, the GOE Control Method and the Hot Swapping Interpretation Method are proposed as the plug-and-play mechanism for sensor control and data processing of seafloor observatory networks. ESOSW was thus implemented with the remote-control system, the data management system, and the real-time monitoring system, supporting managed sensor control and on-demand measurement. ESOSW was tested for plug-and-play enablement through a series of trials and was put into service for the East China Sea Seafloor Observation System. The experiment shows that the sensor web prototype design and implementation are feasible and could be a general reference to related seafloor observatory networks.
Highlights
The emergence of seafloor observatories responds to the demands of earth system science [1]
As an integral part of East China Sea Seafloor Observation System (ECSSOS) and a sensor web prototype, ESOSW was tested for plug-and-play enablement through a series of trials
Air test was first performed on the remote-control system and other systems of ESOSW, in the process of which a secondary junction box connected with several marine sensors were placed on the laboratory test bench to simulate the in situ scientific observation node of cabled seafloor observatories
Summary
The emergence of seafloor observatories responds to the demands of earth system science [1]. Global change research has strongly suggested that the ocean plays an important role in global climate and oceanographic studies increasingly demand long-term, continuous, in situ observations [2] This is implemented with seafloor observatory systems, which connect in situ marine sensors with the control center on shore via submarine electro-optic composite cables, undersea junction boxes, and so on [3]. Oceans 2.0 is scalable and supports from small and occasionally observing systems to large and multi-site networks with high-throughput sensors Another key advance is the H2020 European project known as EMSODEV, of which the OGC Sensor Web Enablement suite of standards are adopted as a solution for sharing data observed from different seafloor observatories: SensorML to describe sensor systems and processes, O&M (Observations and Measurements) to upload data, SOS (Sensor Observation Service) to integrate sensor observations and descriptions, and SOS Web Client to visualize and download information, to name a few.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
