Modular AUV system for Sea Water Quality Monitoring and Management

Abstract

The sustained and cost-effective monitoring of the water quality within European coastal areas is of growing importance in view of the upcoming European marine and maritime directives, i.e. the increased industrial use of the marine environment. Such monitoring needs mechanisms/systems to detect the water quality in a large sea area at different depths in real time. This paper presents a system for the automated detection and analysis of water quality parameters using an autonomous underwater vehicle. The analysis of discharge of nitrate into Norwegian fjords near aqua farms is one of the main application fields of this AUV system. As carrier platform the AUV "CWolf" from the Fraunhofer IOSB-AST will be used, which is perfectly suited through its modular payload concept. The mission task and the integration of the payload unit which includes the sensor module, the scientific and measurement computer in the AUV carrier platform will be described. Few practice oriented information about the software and interface concept, the function of the several software modules and the test platform with the several test levels to test every module will be discussed.

Minimizing deep sea data collection delay with autonomous underwater vehicles

“…This approach has a significantly smaller sensor transmission range than previous techniques, and can further reduce the interference between sensor nodes to mitigate hidden terminal and collision problems. Eichhorn et al [16] designed a modular AUV system for the automated detection and analysis of water quality parameters. The AUV carrier platform is called "CWol," which is based on Fraunhofer IOSB-AST with a payload-sensitive design.…”

“…On the other hand, if the AUVs resurface infrequently, then the collected data within the AUV needs to wait longer to be reported, which also leads to an increased average data reporting delay. This tradeoff poses some unique challenges of combining the design of AUV resurfacing events and trajectory planning in the deep sea, which have not been explored in existing works on underwater sensor networks [7,8,9,10] and corresponding protocols [11,12,13,14,15,16]. We also study AUV surfacing events in cycles with non-sensing edges, as well as the cooperative AUV trajectory planning.…”

First testing of an AUV mission planning and guidance system for water quality monitoring and fish behavior observation in net cage fish farming

“…This paper presents a solution using a mission proven AUV as a carrier platform to implement a miniaturized measurement system to analyze water quality and focuses mainly on a concept for the mission (re)planning and guidance system of such an AUV to use for the task of water quality monitoring. The presented system leans on the research project SALMON (Sea Water Quality Monitoring and Management) [11]. In this project, German (Ilmenau University of Technology, Fraunhofer IOSB-AST, 4H-JENA engineering GmbH), Norwegian (Havforskningsinstituttet, Institute of Marine Research) and Danish (Mads Clausen Institute) companies and research institutions work on a systematic solution for automatic water monitoring.…”

Desenvolvimento de veículos autônomos submarinos para aplicações oceanográficas.

“…Detecção de fenômenos [48] Exploração e mapeamento [49], [50], [26], [51], [52], [53], [54], [55], [56], [57], [58] Monitoramento ambiental [49], [59], [60], [61], [28], [62], [58], [38] Estudos de planktons [63], [19], [20], [64], [48], [15], [65], [66], [1], [67], [2], [20] Análise de qualidade de água [48], [15], [51], [68], [36], [69], [60], [54], [55], [28], [56] Coleta de amostras de água [15], [69], [70], [19], [20] Tabela 3 -Outras aplicações de AUVs encontradas.…”

“…Inundados [26], [107], [102], [86], [90], [47], [70], [89], [40], [100], [21], [91], [49], [22], [63], [94], [97], [42], [51], [45], [54], [84], [46] Estanques [82], [115], [35], [75], [70], [114], [117], [74], [81], [109], [71], [110], [69], [68], [73], [106], [118], [83], [85] 3…”