Reflective Surface for Shark Deterrence
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Solution Overview
Problem
Existing methods for protecting humans in water from predatory sharks often interfere with shark behavior and are not effective in addressing their natural hunting strategies, leading to ineffective deterrence and potential harm to both humans and sharks.
Innovation Solution
An apparatus and method that uses a buoyant portion with a reflective surface capable of generating an image, either by reflecting the surrounding environment or an approaching shark, to camouflage the user and deter shark attacks, utilizing the shark's natural behavior to abort an attack run without harming the shark.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional shark deterrent methods are used, then some level of protection is provided, but the sharks become acclimated and the methods lose effectiveness over time
Solution Approach 1:
The reflective surface is designed to dynamically adapt to the approaching shark's position and movement. As the shark approaches, the reflective surface adjusts the reflected image to maintain the illusion of a larger shark or environmental camouflage, preventing the shark from becoming acclimated through static patterns
Solution Approach 2:
The system changes optical parameters (reflection angle, reflected image intensity, and camouflage pattern) based on the shark's approach distance and angle. This dynamic parameter adjustment ensures the deterrent remains effective throughout the shark's approach sequence without the shark adapting to a fixed pattern
2Object-affected harmful factors
If deterrent methods that interfere with shark behavior are used, then human protection is improved, but harm is inflicted on the shark
Solution Approach 1:
The invention uses the shark's own visual system and natural hunting behavior against it. By reflecting the environment or creating an illusion of a larger shark, the system exploits the shark's visual processing to cause it to abort its attack, converting the shark's predatory instinct into a protective mechanism without inflicting physical harm
Solution Approach 2:
The reflective surface acts as an intermediary between the human user and the approaching shark. It mediates the interaction by presenting visual information (environmental camouflage or enlarged shark image) that causes the shark to abort its attack before physical contact occurs, preventing harm to both human and shark
3Difficulty of detecting and measuring
If the reflective surface reflects the surrounding environment to camouflage the user, then the shark's ability to detect the user is reduced, but the shark may still detect the user through other senses
Solution Approach 1:
The deterrent system addresses multiple sensory modalities separately: visual camouflage through environmental reflection, and acoustic deterrence through shark repellant devices. By segmenting the protection approach across different senses, the system compensates for the limitation that visual camouflage alone cannot prevent detection through other senses like smell or hearing
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
The reflective surface effectively camouflages the user, confusing the shark and reducing the likelihood of attacks by mimicking the environment or presenting a larger shark, thereby minimizing harmful interactions and respecting the shark's natural behavior.
Implementation Method 1
The second portion may generate an image as a result of light falling thereupon. The second portion may reflect at least some of that light.
Data Source
AI summary
Disclosed is an apparatus that is able to generate an image to deter a shark from attacking a watercraft (e.g. a surf-craft). Also disclosed are methods of manufacturing and retrofitting watercraft to include the apparatus that is able to generate an image to deter a shark from attacking the watercraft.