Adaptive Fish Diversion System Using Variable Spectrum Lighting
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Solution Overview
Problem
Existing fish diversion systems are costly, ineffective for various fish species, prone to biofouling, and fail to adapt to different environmental conditions, leading to inefficient fish guidance and increased material requirements.
Innovation Solution
An integrated fish diversion system combining structural diversion assemblies with variable lighting devices that adjust spectrum and intensity based on operational parameters, allowing for species-specific responses and adaptive operation to optimize fish guidance, reducing structural material needs and biofouling risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elaborate screening systems are used, then fish protection effectiveness is improved, but system cost and complexity increase
Solution Approach 1:
The patent replaces mechanical screening systems with a lighting-based diversion system. Instead of using physical screens that are expensive and complex, the invention uses lights to guide fish away from harmful areas, substituting a mechanical system with an optical one that is simpler and more effective.
Solution Approach 2:
The patent employs different light colors (parameters) to target specific fish species. By changing the spectral parameters of the lighting system, the system can adapt to different fish species' behavioral responses, achieving effective diversion without complex mechanical structures.
2Ease of manufacture
If fixed lighting systems are used, then construction cost is reduced, but adaptability to different fish species decreases
Solution Approach 1:
The patent transforms fixed lighting systems into dynamic, adjustable systems. The lighting parameters such as color and intensity can be changed based on the target fish species, allowing the same simple lighting structure to adapt to different biological requirements without increasing construction cost.
Solution Approach 2:
The lighting system is designed to be universal and multi-functional. A single lighting infrastructure can serve multiple purposes by adjusting its parameters, making it effective against different fish species while maintaining cost-effectiveness, thus achieving both simplicity and adaptability.
3Object-affected harmful factors
If traditional lighting systems are used, then biofouling is reduced, but fish guidance effectiveness decreases
Solution Approach 1:
The patent utilizes color changes in the lighting system to enhance fish guidance effectiveness. Different colors are employed to target specific fish species based on their spectral sensitivity, thereby maintaining high guidance effectiveness while avoiding biofouling issues associated with traditional lighting systems.
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 system effectively diverts fish with reduced material costs and biofouling issues, leveraging species-specific responses and environmental adaptations to enhance fish diversion efficiency across different species and life stages.
Implementation Method 1
one or more lighting devices each comprising one or more lighting elements and associated drivers operable to output light having a variable visible output spectrum and a variable output intensity
Data Source
AI summary
Described are various embodiments of an integrated fish diversion system, and lighting device used therein. One embodiment provides a system for diverting approaching fish from a predominant water flow path and toward a bypass. The system comprises a structural diversion assembly to be disposed across the predominant water flow path to guide the approaching fish along the structural diversion assembly to the bypass, while allowing passage of water through the structural diversion assembly along the predominant water flow path. The system further comprises one or more lighting devices to be cooperatively disposed in relation to the structural diversion assembly to further guide the approaching fish toward the bypass; and a controller operatively coupleable to the one or more lighting devices and operable to select an output spectrum thereof to optimize fish guidance thereby.