Patent RU-2629263-C2 (RU)
Inventor: DUBROVIN ALEKSANDR VLADIMIROVICH
IPC: A01G9/14
Filed: 2016-02-02
Granted: 2017-08-28
Abstract: FIELD: agriculture. 
     SUBSTANCE: according to the results of measuring, generating and comparing the signals of the parameter values, the heating mode of the greenhouse room is controlled. The heating mode of the room, the electrical stimulation of plant growth and the metabolism improvement both in the open ground and in greenhouse conditions are corrected. The positive potential of the current source is supplied to the plant root system area, and the negative potential to the upper part of the plant. The value of the angle between the direction of the moving outdoor air moving towards the greenhouse room, or the wind direction, and the direction to the north, is measured. The generated and specified signal of the difference of bioelectric potentials is supplied to the stems of the greenhouse plants. The device contains an internal air temperature sensor, a relative humidity sensor of the internal air, an outdoor air temperature sensor, a relative humidity sensor of outside air, a plant irradiation sensor, an outdoor air speed, or wind speed, sensor. The device also includes a unit of setters of the type and age of the plants, the current plant growth time, the simulated internal air temperature signal, the signals of sweep in the technological range of the internal air temperature, the values of the coefficients and constants of the mathematical models of productivity and heat exchange of the greenhouse with the environment. The device contains the calculation unit, the control unit or the first generator of the economically optimal value of the internal air temperature, or the first optimizer, the first regulator of the internal air temperature, the heater, the unit for indicating the economic parameters and characteristics of the plant growing process in the greenhouse. The device contains the outputs of the internal air temperature sensor, the internal air relative humidity sensor, the outdoor air temperature sensor, the outdoor air relative humidity sensor, the plant irradiation sensor, the outside air speed, or wind speed, sensor. The units of the setters are connected to the corresponding inputs of the calculating unit, the first and the second outputs of which are connected respectively to the inputs of the control unit, the indicating unit. The output of the control unit is connected to the additional input of the calculating unit and to the first input of the internal air temperature controller, the second input of which is additionally connected to the output of the internal air temperature sensor, and the output is connected to the heater input. The device contains the second generator of the artificial electrical highest value of the biological electrical potential of plants of a given species and age under environmental conditions near optimal, the second voltage regulator of an artificial biological electric potential or an artificially created external electric negative potential applied to the top of the plant in relation to the ground, the input electrical resistance of the stems of the greenhouse plants, the tops of which are mechanically fixed to strong electrically conductive trellises and electrically connected thereto, the wind direction sensor, the output of which is connected to the corresponding input of the calculating unit. The third output of the calculating unit through the second generator is connected to the first input of the second regulator, the second input and output of which are connected respectively to the input electrical resistance of the stems of the greenhouse plants and to the housing of the first device electrically connected to the ground. 
     EFFECT: increasing the accuracy, increasing the functionalities and the expansion of the arsenal of technical means for managing technological processes of growing plants in the greenhouse. 
     3 cl, 2 tbl, 6 dwg