METHOD AND ILLUMINATION SYSTEM FOR PLANT RECOVERY FROM STRESS
First Claim
1. A method for artificial illumination of a plant, the method comprising:
- controlling an illumination system to illuminate the plant with emitted light, the emitted light having a first spectral distribution and a first intensity level, the first spectral distribution and the first intensity level selected for optimizing growth of the plant;
detecting, using a sensor, a presence of stress in the plant;
when stress is detected, controlling the illumination system to illuminate the plant with light having a second spectral distribution and a second intensity level, the second intensity level being lower than the first intensity level.
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Abstract
The invention relates to a method for artificial illumination of a plant, the method comprising the steps of: controlling an illumination system to illuminate the plant, the emitted light having a first spectral distribution and a first intensity level, the first spectral distribution and the first intensity level selected for optimizing growth of the plant; detecting, using a sensor, the presence of stress in the plant; if stress is detected, controlling the illumination system to illuminate the plant with light having a second spectral distribution and a second intensity level, the second intensity level being lower than the first intensity level. The invention also relates to an illumination system for artificial illumination of a plant according to the method above.
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Citations
10 Claims
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1. A method for artificial illumination of a plant, the method comprising:
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controlling an illumination system to illuminate the plant with emitted light, the emitted light having a first spectral distribution and a first intensity level, the first spectral distribution and the first intensity level selected for optimizing growth of the plant; detecting, using a sensor, a presence of stress in the plant; when stress is detected, controlling the illumination system to illuminate the plant with light having a second spectral distribution and a second intensity level, the second intensity level being lower than the first intensity level. - View Dependent Claims (2, 3, 4, 6, 10)
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5. The method according to claim 5, wherein the second spectral distribution and the second intensity level is dependent on the normalized stress level.
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7. An illumination system for artificial illumination of a plant, the illumination system comprising:
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a light emitting device configured to emit light of an adjustable spectrum; a sensor configured to detect a presence of stress in the plant, and a control unit, the control unit being electrically coupled to the sensor and the light emitting device, the control unit being configured to; control the illumination system to illuminate the plant with emitted light, the emitted light having a first spectral distribution and a first intensity level, the first spectral distribution and the first intensity level selected for optimizing growth of the plant; detect, using the sensor, a normalized level of stress in the plant; and when the normalized stress level is above a predetermined threshold, control the illumination system to illuminate the plant with light having a second spectral distribution and a second intensity level determined by the control unit, the second intensity level being lower than the first intensity level. - View Dependent Claims (8, 9)
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Specification