METHOD FOR AUTOMATIC CONTROL OF LIGHT-TEMPERATURE MODE IN GREENHOUSE AND SYSTEM THEREFOR Russian patent published in 2016 - IPC A01G9/24 A01G9/26 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to systems and methods for automatic control of light-temperature mode in greenhouses or other structures of protected ground. According to suggested method in definite time intervals there are measured: temperature, illumination, air humidity in greenhouse, age of plants, photoperiod is set for operation of extra-illuminating equipment. Computer computes and setting device sets multidimensional optimal values of temperature and illumination. Besides, for operation of additional lighting equipment computer setter calculates multidimensional optimal values of total radiation by formulas, pause-waiting for motor-reducer and pitch-movement for crane girder with irradiators. System for automatic control of light-temperature mode in greenhouse, implementing proposed method comprises temperature and illumination control circuits. Computer setter generates setting signals for operation of equipment based on calculated multidimensional optimum values by readings of sensors monitoring internal environment. System also contains additional circuits to control switching on of additional lighting equipment arranged on crane, and its movement along rows of plantations during whole specified light period. Movement of crane girder is performed by motor-reducer, which is periodically switched on in operation and is switched off, moving crane girder with definite rate. Motion parameters of crane beam are also evaluated by computer setup unit.

EFFECT: use of method and system enables more accurate maintenance of required illumination in greenhouse, reducing number of radiators as power consumers, reducing duration of period of vegetation and increasing plant productivity.

2 cl, 1 tbl, 1 dwg