Seabed Sensor Payload Support for Interference-Free Deployment
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Solution Overview
Problem
Current seabed surveying systems face challenges in installing multiple sensors like multibeam echosounders and sub-bottom profilers on a single ship pole without hydrodynamic interference, which degrades data quality and complicates deployment and recovery operations, especially in small vessels with limited space.
Innovation Solution
A payload support with four docking areas is designed to accommodate a multibeam sonar, inertial measurement unit, and sub-bottom profiler on a single pole, with strategic placement and stabilization to minimize interference and stress, allowing simultaneous operation of both sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple sensors are mounted on a single pole, then deployment and recovery operations are simplified, but hydrodynamic interference between sensors increases
Solution Approach 1:
The pole is divided into multiple segments with sensors mounted at different vertical levels. The multibeam echosounder is positioned at one height while the sub-bottom profiler is positioned at a different height, creating spatial separation that reduces hydrodynamic interference while maintaining single-pole operation benefits
Solution Approach 2:
Sensors are arranged in the vertical dimension rather than being positioned side-by-side horizontally. This vertical stacking approach allows multiple sensors to occupy the same general lateral space while minimizing their mutual hydrodynamic interference through vertical separation
2Object-affected harmful factors
If sensors are installed on poles located on both sides of the vessel, then hydrodynamic interference is reduced, but deployment operations become more complex
Solution Approach 1:
Multiple sensors that would traditionally be distributed across multiple poles on different sides of the vessel are merged onto a single pole. This consolidation simplifies deployment operations to a single location while using vertical positioning and spacing to mitigate hydrodynamic interference between sensors
3Area of stationary object
If multiple sensors are mounted on a single pole, then space utilization is improved, but mutual hydrodynamic interference between probes increases
Solution Approach 1:
The system utilizes the vertical dimension to accommodate multiple sensors within a compact lateral footprint. By positioning sensors at different heights along the pole rather than spreading them horizontally, the design achieves efficient space utilization while the vertical separation reduces hydrodynamic interference between the probes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables accurate, interference-free data acquisition from multiple sensors on a single pole, reducing deployment and recovery time and costs, while maintaining system stability and avoiding environmental impact.
Implementation Method 1
the first docking area comprises a multibeam sonar
Implementation Method 2
the fourth docking area comprises a sub-bottom profiler
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The present invention relates to a device for supporting a seabed measurement with sea underwater system on ships. This device comprises a payload support with at least four docking areas distributed from front edge to rear edge of the payload support, wherein the first docking area comprises a multibeam sonar, the second docking area comprises an inertial measurement unit, and the fourth docking area comprises a sub-bottom profiler. Therefore, the present invention relates to the area of measurement systems with sensors useful for marine seabed surveying and mapping.