An air conditioning system and methods of use regulate a moisture content of an agricultural product in a grain bin. The system receives headspace air from the headspace of the grain bin, which generally has a higher moisture content than ambient air. The system further receives ambient air and mixes the headspace air and the ambient air into a ratio comprising a target moisture content. The air mixture is provided into a grain bin plenum, where it then permeates through to agricultural product, thereby regulating the moisture. The system and method can be used to bring the agricultural product to a target moisture content that is preferred when storing the agricultural product.

An air conditioning system and methods of use regulate a moisture content of an agricultural product in a grain bin. The system receives headspace air from the headspace of the grain bin, which generally has a higher moisture content than ambient air. The system further receives ambient air and mixes the headspace air and the ambient air into a ratio comprising a target moisture content. The air mixture is provided into a grain bin plenum, where it then permeates through to agricultural product, thereby regulating the moisture. The system and method can be used to bring the agricultural product to a target moisture content that is preferred when storing the agricultural product.

A locking device for preventing freewheeling of an aeration fan rotor. The locking device comprises an elongated body having a predetermined length. The elongated body is adapted for being disposed through an opening of a fan housing containing the aeration fan rotor therein such that in a first position a first end portion of the elongated body is enabled to interact with the aeration fan rotor for preventing freewheeling of the aeration fan rotor and a second opposite end portion of the elongated body is placed outside the fan housing. The locking device further comprises means for holding the elongated body in the first position and a second position such that in the second position the first end portion of the elongated body is prevented from interacting with the aeration fan rotor.

A locking device for preventing freewheeling of an aeration fan rotor. The locking device comprises an elongated body having a predetermined length. The elongated body is adapted for being disposed through an opening of a fan housing containing the aeration fan rotor therein such that in a first position a first end portion of the elongated body is enabled to interact with the aeration fan rotor for preventing freewheeling of the aeration fan rotor and a second opposite end portion of the elongated body is placed outside the fan housing. The locking device further comprises means for holding the elongated body in the first position and a second position such that in the second position the first end portion of the elongated body is prevented from interacting with the aeration fan rotor.

A vent for a ventilated concrete floor structure, which includes parallel spaced-apart support beams and a concrete floor thereover, comprises upstanding longitudinally-extending sidewalls interconnected in transversely spaced-apart relation and a passageway therebetween for releasing air from at least one air duct underneath the floor to a ventilated space thereover. The passageway has an inlet at bottoms of the sidewalls communicated with an air duct and an outlet at tops of the sidewalls at an upper surface of the floor. The sidewalls are metallic. Upright sidewall portions extend in a height direction of the vent and upper sidewall portions defining the sidewall tops extend transversely outwardly from the upright portions to provide upper surfaces arranged substantially flush with the upper floor surface. The passageway is substantially prismatic, and the rectangular inlet opening is wider than the rectangular outlet opening. Lower sidewall portions are configured to rest on the support beams.

A vent for a ventilated concrete floor structure, which includes parallel spaced-apart support beams and a concrete floor thereover, comprises upstanding longitudinally-extending sidewalls interconnected in transversely spaced-apart relation and a passageway therebetween for releasing air from at least one air duct underneath the floor to a ventilated space thereover. The passageway has an inlet at bottoms of the sidewalls communicated with an air duct and an outlet at tops of the sidewalls at an upper surface of the floor. The sidewalls are metallic. Upright sidewall portions extend in a height direction of the vent and upper sidewall portions defining the sidewall tops extend transversely outwardly from the upright portions to provide upper surfaces arranged substantially flush with the upper floor surface. The passageway is substantially prismatic, and the rectangular inlet opening is wider than the rectangular outlet opening. Lower sidewall portions are configured to rest on the support beams.

Embodiments of systems and approaches for managing post-harvest crop quality and pests are described. Such a system may include a plurality of edge devices each comprising sensor components and collectively forming a mesh network, for measuring the local physical environment within stored crops and, for example, transmitting the measurements to a service from within the crop storage area. In certain embodiments, such a system may be used to manage post-harvest crops and storage areasfor example, approaches are described for determining fumigation treatment duration, determining phosphine dosage, determining heat treatment duration, and determining safe storage time for crops.

Embodiments of systems and approaches for managing post-harvest crop quality and pests are described. Such a system may include a plurality of edge devices each comprising sensor components and collectively forming a mesh network, for measuring the local physical environment within stored crops and, for example, transmitting the measurements to a service from within the crop storage area. In certain embodiments, such a system may be used to manage post-harvest crops and storage areasfor example, approaches are described for determining fumigation treatment duration, determining phosphine dosage, determining heat treatment duration, and determining safe storage time for crops.

A portable system for monitoring and conditioning of agricultural assets in aerated storage bins. Sensor sticks combine rigid tubing with internal sensor cables to enable penetrative submersion of sensor nodes into an existing stored volume of grain. A control unit has input terminals for connection of sensor sticks and plenum sensors, and output terminals for connection of portable construction heaters, aeration fans and headspace exhaust fans. The terminals include multi-use terminals to which different sensor and equipment types are assignable to enable a variety of different operational scenarios with different quantities of bins, heaters, fans and sensor sticks. A headspace kit includes a fan unit mountable externally to the bin near ground level, and a flexible exhaust duct routable between the fan unit and a rooftop opening of the bin for fan driven evacuation of humid air from the headspace of the bin.

A portable system for monitoring and conditioning of agricultural assets in aerated storage bins. Sensor sticks combine rigid tubing with internal sensor cables to enable penetrative submersion of sensor nodes into an existing stored volume of grain. A control unit has input terminals for connection of sensor sticks and plenum sensors, and output terminals for connection of portable construction heaters, aeration fans and headspace exhaust fans. The terminals include multi-use terminals to which different sensor and equipment types are assignable to enable a variety of different operational scenarios with different quantities of bins, heaters, fans and sensor sticks. A headspace kit includes a fan unit mountable externally to the bin near ground level, and a flexible exhaust duct routable between the fan unit and a rooftop opening of the bin for fan driven evacuation of humid air from the headspace of the bin.