基于水下云边协同架构的珊瑚礁监测新机制

doi:10.12305/j.issn.1001-506X.2022.12.28

Abstract

Abstract:

Coral reefs are marine ecosystems of great research value, and underwater acoustic sensor networks (UASNs) are effective means to monitor and protect this system. However, with the extensive application of underwater sensing equipment, the types and quantity of sensing data have increased greatly. The traditional UASNs architecture uploads the raw data directly to the surface data center, which brings severe challenges to the network energy and communication efficiency. This paper constructs an underwater end-edge-cloud system architecture based on edge computing, and proposes a two-level collaborative coral reef system monitoring mechanism. This architecture sinks complex processing tasks from the remote cloud center to the edge, and reduces the cloud processing load. The mechanism includes end-side image processing and end-edge collaborative data detection strategies, which realizes the edge-side execution of machine learning tasks and the in-situ processing of data. Experimental results show that this study can significantly reduce network data traffic, effectively decrease energy consumption and transmission delay, and extend network life cycle.

Key words: underwater acoustic sensor networks (UASNs), edge computing architecture, cloud-edge collaborative, coral reef monitoring

CLC Number:

TP393

Zhigang JIN, Chenxu DUAN, Qiuling YANG, Yishan SU. A new mechanism for reef coral monitoring based on underwater cloud-edge collaborative architecture[J]. Systems Engineering and Electronics, 2022, 44(12): 3829-3836.

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分类	警报标准	警报等级	白化影响
一级大范围持续监测(HotSpot＜1)	HotSpot≤0	无风险	无影响
一级大范围持续监测(HotSpot＜1)	0＜HotSpot＜1	持续监测	无影响
二级小范围本地监测(HotSpot≥1)	HotSpot≥1且0＜DHW＜4	白化预警	可能白化
	HotSpot≥1且4≤DHW＜8	预警级别Ⅰ	极可能白化
	HotSpot≥1且8≤DHW	预警级别Ⅱ	严重白化可能甚至死亡

参数	取值
终端感知节点数量/个	45
边缘处理节点数量/个	15
中继传输节点数量/个	60
中继节点感知半径/m	1 000
初始能量/J	10 000
发送功率/W	10
接收功率/W	1
数据包大小/byte	100
异常数据率(α=异常数据量/总数据量)	0~1
数据包生成速率λ/(packets/s)	0.01~0.1
实验运行次数/次	30

处理方式	平均处理时间/s
云端集中处理	5.058
端边协同处理	1.324

A new mechanism for reef coral monitoring based on underwater cloud-edge collaborative architecture

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