Sensor Assembly for Watercraft Using Nested Mounting

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Solution Overview

Problem

Existing watercraft systems lack effective solutions for installing sensors in limited onboard spaces while ensuring optimal environmental perception for autonomous operation support systems.

Innovation Solution

A sensor assembly comprising a sensor, an inserted portion, and an extended portion, where the sensor is housed in either or both portions, allowing for secure and efficient installation on watercrafts by replacing traditional cup holders and rod holders, utilizing a housing configuration that ensures watertight sealing and minimal interference with communication signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensors are installed in traditional mounting locations on watercraft, then installation is simple, but onboard space is insufficient and environmental perception is limited

Engineering Contradiction:
Improveenvironmental perception capabilityVSAvoidonboard space
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The sensor assembly is nested within the accommodating space of existing watercraft structures (cup holder, rod holder, or console cavity). The inserted portion fits inside the accommodating space while the extended portion protrudes outward, allowing the sensor to be housed within existing structural volumes rather than requiring additional onboard space.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The sensor assembly utilizes the third dimension by extending outward from the watercraft surface through the extended portion. This allows the sensor to be positioned in spatial locations that were previously unavailable within the limited onboard volume, enabling environmental perception without consuming additional deck or cabin space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If sensors are placed outside the watercraft body for better perception, then environmental perception improves, but protection from water and environmental damage is reduced

Engineering Contradiction:
Improveenvironmental perception accuracyVSAvoidwater and environmental exposure
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The sensor is nested within the housing structure that is partially integrated with the watercraft body. The housing provides a protective barrier between the sensor and the external water environment, while the extended portion allows the sensor to maintain its perception function.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The housing structure acts as a protective shell that encloses the sensor. This shell provides waterproof and environmental protection while allowing the sensor to extend outward for effective environmental perception. The housing can be designed with sealed interfaces to prevent water ingress.

Inventive Principle:
Principle #30Flexible shells and thin films

3Extent of automation

If multiple sensors are installed to improve autonomous operation support, then system capability increases, but device complexity and installation difficulty increase

Engineering Contradiction:
Improveautonomous operation support capabilityVSAvoidsensor assembly configuration
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The sensor assembly is designed as a universal mounting structure that can accommodate different types of sensors (GPS, camera, radar, lidar, sonar) through the same inserted portion and housing configuration. This standardized interface simplifies installation and reduces complexity when deploying multiple sensors for autonomous operation support.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The sensor assembly is segmented into modular components: the inserted portion that fits into the accommodating space, the housing that protects the sensor, and the extended portion that positions the sensor for optimal perception. This segmentation allows for standardized installation across multiple locations while maintaining protection and functionality.

Inventive Principle:
Principle #1Segmentation

4Volume of moving object

If sensors are integrated into existing structures like cup holders, then space utilization improves, but installation flexibility is reduced

Engineering Contradiction:
Improvespace utilization efficiencyVSAvoidinstallation location flexibility
Core Design Contradiction:
Volume of moving objectVSAdaptability or versatility

Solution Approach 1:

The sensor assembly is designed to be universally compatible with multiple types of existing watercraft structures including cup holders, rod holders, and console cavities. The standardized inserted portion can be adapted to fit various accommodating spaces, providing installation flexibility across different locations and watercraft types while efficiently utilizing existing structural volumes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4468023A1Sensor assembly for watercraft, operation support system and watercraft
Publication Date: 2024.11.27 YAMAHA MOTOR CO LTD
  • EP4468023A1 patent drawingFigure 1
  • EP4468023A1 patent drawingFigure 2
  • EP4468023A1 patent drawingFigure 3

AI summary

A sensor assembly for a watercraft comprises a sensor, an inserted portion, and an extended portion. The sensor includes at least one of a GPS transmitter, a GPS receiver, a camera, a radar device, a lidar device and a sonar device. The inserted portion is configured to be inserted into an accommodating space provided on a watercraft to accommodate an object. The extended portion is coupled to the inserted portion and configured to be located outside the accommodating space in a state where the sensor assembly is installed in the accommodating space. The sensor is housed in at least one of the inserted portion and the extended portion.