A greenhouse automatic ventilation system, characterized in that it includes a U-shaped metal frame with a fastening system on the upper longitudinal support element of the greenhouse in the immediate vicinity of the window leaf, on which a direct current electric motor is rigidly fixed, with a reduction gear, external and internal limit switches and a metal screw the rod attached at one end to the output shaft of the gearbox, the second end of the rod rotates freely in the hole opposite to the motor e frames, while on the threaded rod there is a metal threaded sleeve with a metal platform attached to it, on which one end of the metal rod consisting of two adjustable parts is secured by a hinge, and the second end of the rod is provided with a hinge for fastening to the greenhouse window, also on the platform special stops for limit switches are fixed - one for the indoor and outdoor, in addition, the system includes a control unit and a power supply, while the control unit includes a digital a temperature sensor that measures the temperature of the air in the greenhouse with an accuracy of 0.1 ° C and a central microprocessor unit that receives information about the measured temperature from the sensor and generates, depending on the program, the necessary signal to the relay through which the supply voltage to the engine is supplied, and also a set of control relays through which a direct or inverted supply voltage is supplied to the motor.Система автоматического проветривания теплицы предназначена для вентиляции и регулирования температуры в теплицах. Она содержит центральный блок управления и датчик температуры, блок питания, набор реле и концевых выключателей, объединенных в общую электрическую схему с центральным блоком, а также два электромотора и набор тяг. Техническим результатом является улучшение качества проветривания теплиц за счет отсутствия задержек в открывании форточек и поддержания заданной температуры с точностью до 0,1°С. Это достигается использо
