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US 12,751,465 B2Granted
Method of controlling the environment in a grow room
AssigneeJDS Consulting
InventorDavid Sandelman
Life of this patent
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Abstract
A method that controls the conditions of a grow room in which independent feedback loops control the dry bulb temperature and the dew point to control the vapor pressure deficit in the grow room in order to slow down or prevent condensation that may promote the growth of mold, mildew, or microbes on the plants, or to slow down or prevent condensation that may promote pest infestation on the plant.
Claims16
A method of controlling environmental conditions in a grow room with a system that includes:
- a first sensor to determine the temperature in the grow room,
- a second sensor to determine the vapor pressure in the grow room,
- and
- a controller responsive to dew point in the grow room, wherein the controller comprises two independently controllable PID control loops, one of the two PID control loops controls the temperature in the grow room and the other of the two PID control loops controls the dew point of the grow room, and
- wherein the system comprises a lighting control controlling the timing of and amount of lighting in the grow room, the lighting control operating in conjunction with the two PID control loops to control the conditions of the grow room, the method comprising:
- sensing loss of sensible load of lighting in the grow room with the first sensor, and in response to loss of sensible load of lighting in the grow room, slowing down or preventing condensation on leaves of plants inside the grow room by controlling the dew point in the grow room independent of temperature in the grow room with the other of the two PID control loops to control the vapor pressure deficit in the grow room.
3 more elements
Dependencies are inferred from the claim text.