Underwater Acoustic Networks for Security Risk Assessment in Public Drinking Water Reservoirs

• URL: http://arxiv.org/abs/2107.13977v1
• Date: Thu, 29 Jul 2021 14:02:51 GMT
• Title: Underwater Acoustic Networks for Security Risk Assessment in Public Drinking Water Reservoirs
• Authors: J\"org Stork, Philip Wenzel, Severin Landwein, Maria-Elena Algorri, Martin Zaefferer, Wolfgang Kusch, Martin Staubach, Thomas Bartz-Beielstein, Hartmut K\"ohn, Hermann Dejager, Christian Wolf
• Abstract summary: We implement an innovative AI-based approach to detect, classify and localize underwater events. We discuss the challenges of installing and using the hydrophone network in a water reservoir.
• Score: 5.227907960942717
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We have built a novel system for the surveillance of drinking water reservoirs using underwater sensor networks. We implement an innovative AI-based approach to detect, classify and localize underwater events. In this paper, we describe the technology and cognitive AI architecture of the system based on one of the sensor networks, the hydrophone network. We discuss the challenges of installing and using the hydrophone network in a water reservoir where traffic, visitors, and variable water conditions create a complex, varying environment. Our AI solution uses an autoencoder for unsupervised learning of latent encodings for classification and anomaly detection, and time delay estimates for sound localization. Finally, we present the results of experiments carried out in a laboratory pool and the water reservoir and discuss the system's potential.

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