Hatchery Lighting Controller for Chick Circadian Rhythm Control
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Solution Overview
Problem
Hatcheries often lack natural or artificial lighting, which disrupts the circadian rhythms of developing chicks, leading to increased mortality rates and suboptimal health due to constant illumination or lack thereof.
Innovation Solution
A controller system that modulates lighting within hatcheries to create periods of relative lightness and darkness by varying spectral composition and intensity, mimicking natural day-night cycles, while maintaining a minimum illumination level outside the eggs to ensure newly hatched chicks can find resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If constant illumination is provided to eggs during hatching, then chicks can find food and resources after hatching, but circadian rhythms are disrupted and chick health deteriorates
Solution Approach 1:
The lighting system implements periodic illumination cycles that alternate between light and dark periods, mimicking natural day-night cycles. This periodic action allows chicks to experience circadian rhythm-regulating light patterns while still receiving adequate illumination for finding food and resources after hatching.
Solution Approach 2:
The system dynamically adjusts lighting parameters including spectral composition, intensity, and timing based on the hatching stage and circadian rhythm requirements. Lighting conditions are modified to provide appropriate illumination levels during different phases of the hatching process while maintaining chick health.
2Loss of energy
If no lighting is provided in hatcheries, then energy consumption is reduced, but circadian rhythms are disrupted and mortality rates increase
Solution Approach 1:
Instead of continuous illumination, the system uses periodic lighting cycles that provide illumination only during periods when it benefits chick development and survival. This reduces overall energy consumption while maintaining circadian rhythm regulation and chick survival rates.
Solution Approach 2:
The system optimizes lighting parameters such as spectral composition, intensity, and duration to achieve effective chick rearing with reduced energy input. By carefully controlling these parameters, the system maintains high survival rates while minimizing energy consumption.
3Reliability
If illumination with different spectral compositions is used, then circadian rhythm entrainment is improved, but system complexity increases
Solution Approach 1:
The system controls spectral composition parameters of the illumination to match natural light spectra at different times of day. By adjusting wavelength distribution and intensity, the system effectively entrains circadian rhythms without requiring overly complex equipment.
Solution Approach 2:
The lighting system is designed to perform multiple functions including circadian rhythm regulation, chick heating, and general illumination using a single integrated system. This multi-functionality reduces overall system complexity while achieving circadian rhythm entrainment through spectral control.
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 system helps entrain circadian rhythms in unborn chicks, reduces stress, and improves development by simulating natural light-dark cycles, thereby enhancing health and survival rates.
Implementation Method 1
control the one or more light emitting elements to emit illumination having a first spectral composition for a first time period
Implementation Method 2
a respective filter between each of the one or more animals and the one or more light emitting elements, wherein the controller is configured to: control the one or more light emitting elements to emit illumination having a first spectral composition
Data Source
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AI summary
A controller for controlling illumination emitted by lighting elements within an environment comprising animals and a respective filter between each of animal and the lighting elements, the controller configured to: control the lighting elements to emit illumination having a first spectral composition for a first time period to produce, on a first side of the filter, a first level of illumination as experienced by a visual system of the animals; control the lighting elements to emit illumination having a second, different spectral composition for a second, subsequent time period to produce, on the first side of the filter, a second, different level of illumination as experienced by the visual system of the animals; and control the lighting elements to emit illumination throughout the first and second time periods to maintain, on a second side of the filter, a minimum level of illumination as experienced by a visual system of the animals.