Ventilation control apparatus and ventilation system

    公开(公告)号:US12117197B2

    公开(公告)日:2024-10-15

    申请号:US17272899

    申请日:2019-08-30

    摘要: A ventilation device control apparatus includes an image acquisition unit, a first calculation unit, and a ventilation control unit. The image acquisition unit acquires a captured image from an image capturing device that captures an image of a target space. The first calculation unit calculates a metabolic rate equivalent amount of a person in the target space, based on the captured image acquired by the image acquisition unit. The ventilation control unit adjusts a ventilation volume of the target space by a ventilation device that ventilates the target space, based on the metabolic rate equivalent amount calculated by the first calculation unit. A ventilation system further includes the image capturing device and the ventilation device.

    Control for a passive-ventilation system of a building

    公开(公告)号:US12066198B2

    公开(公告)日:2024-08-20

    申请号:US17691121

    申请日:2022-03-10

    摘要: The invention relates to a method for controlling a passive-ventilation system of a building, comprising: determining an outdoor air temperature of air in an environment of the building; determining an indoor air temperature of at least one zone inside the building; calculating a temperature difference by subtracting the determined outside air temperature from the determined indoor air temperature; and, if the calculated temperature difference is greater than zero, controlling a state of at least one passive-ventilation device of the passive-ventilation system to be in any of a closed state, an open state, and one of one or more intermediate states between closed and open state. Each of the states corresponds to one value of an opening fraction value of the at least one zone inside the building varying between 0 and 1.