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Hull and Aerial Holonomic Propulsion System Design for Optimal Underwater Sensor Positioning in Autonomous Surface
Bruno A Regina1, Leonardo M Honório1, Antônio A N Pancoti1
1Faculty of Engineering, Federal University of Juiz de Fora, Juiz de Fora 36036-110, Brazil.
Sensors (Basel, Switzerland)
|January 20, 2021
Summary
This study introduces a new Autonomous Surface Vessel (ASV) design to improve Acoustic Doppler Current Profiler (ADCP) accuracy for river flow measurements, reducing errors in energy cost calculations.
Area of Science:
- Hydrology and Water Resource Management
- Ocean Engineering and Naval Architecture
- Environmental Monitoring Technologies
Background:
- Acoustic Doppler Current Profiler (ADCP) sensors are crucial for river Flow Curve (FC) evaluation, impacting hydrological model calibration and energy cost assessments.
- Inaccurate ADCP sensor placement on vessels (bow exposure to obstacles, stern interference from boat hydrodynamics) leads to significant measurement errors.
- These errors propagate through hydrological models, affecting the reliability of energy dispatch planning and national energy costs.
Purpose of the Study:
- To address the inaccuracies in ADCP river flow measurements caused by suboptimal sensor placement.
- To propose and design an optimized Autonomous Surface Vessel (ASV) that enhances ADCP sensor protection and data precision.
- To enable reliable hydrological data collection in challenging environments like ultra-shallow waters and mangroves.
Main Methods:
- Design of a catamaran-like Autonomous Surface Vessel (ASV) featuring an optimized hull.
- Integration of aerial propulsion for enhanced maneuverability and stability.
- Strategic placement of ADCP sensors to mitigate interference and protect them from environmental hazards.
Main Results:
- The proposed ASV design offers improved protection for ADCP sensors against obstacles and hydrodynamic interference.
- Optimized sensor placement ensures more accurate water inflow measurements.
- The design facilitates ADCP deployment in previously inaccessible critical areas, such as ultra-shallow rivers and mangrove ecosystems.
Conclusions:
- The novel ASV design effectively overcomes the limitations of traditional ADCP sensor deployment methods.
- This innovation leads to more reliable river flow data, enhancing the accuracy of hydrological models and energy cost evaluations.
- The ASV is suitable for critical environmental monitoring in sensitive and challenging aquatic environments.
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