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用于原位长期多参数观测应用的海底实时传感系统。

A Seabed Real-Time Sensing System for In-Situ Long-Term Multi-Parameter Observation Applications.

机构信息

College of Engineering, Ocean University of China, Qingdao 266100, China.

Key Laboratory of Marine Environment and Geological Engineering Shandong Province, Ocean University of China, Qingdao 266100, China.

出版信息

Sensors (Basel). 2019 Mar 12;19(5):1255. doi: 10.3390/s19051255.

DOI:10.3390/s19051255
PMID:30871089
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6427298/
Abstract

Aiming at the real-time observation requirements in marine science and ocean engineering, based on underwater acoustic communication and satellite communication technology, a seabed real-time sensing system for in-situ long-term multi-parameter observation applications (SRSS/ILMO) is proposed. It consists of a seabed observation system, a sea surface relay transmission buoy, and a remote monitoring system. The system communication link is implemented by underwater acoustic communication and satellite communication. The seabed observation system adopts the "ARM + FPGA" architecture to meet the low power consumption, scalability, and versatility design requirements. As a long-term unattended system, a two-stage anti-crash mechanism, an automatic system fault isolation design, dual-medium data storage, and improved Modbus protocol are adopted to meet the system reliability requirements. Through the remote monitoring system, users can configure the system working mode, sensor parameters and acquire observation data on demand. The seabed observation system can realize the observation of different fields by carrying different sensors such as those based on marine engineering geology, chemistry, biology, and environment. Carrying resistivity and pore pressure sensors, the SRSS/ILMO powered by seawater batteries was used for a seabed engineering geology observation. The preliminary test results based on harbor environment show the effectiveness of the developed system.

摘要

针对海洋科学和海洋工程中的实时观测需求，基于水声通信和卫星通信技术，提出了一种海底实时传感系统用于原位长期多参数观测应用（SRSS/ILMO）。它由海底观测系统、海面中继传输浮标和远程监控系统三部分组成。系统通信链路通过水声通信和卫星通信来实现。海底观测系统采用“ARM+FPGA”架构，满足低功耗、可扩展性和通用性设计要求。作为一个长期无人值守的系统，采用两级防碰撞机制、自动系统故障隔离设计、双介质数据存储和改进的 Modbus 协议，以满足系统可靠性要求。通过远程监控系统，用户可以根据需要配置系统工作模式、传感器参数并获取观测数据。海底观测系统可以通过搭载基于海洋工程地质、化学、生物和环境等领域的不同传感器来实现不同领域的观测。搭载电阻率和孔隙压力传感器，基于海水电池的 SRSS/ILMO 被用于海底工程地质观测。基于港口环境的初步测试结果表明了所开发系统的有效性。

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