Electrical measuring complex for the frame greenhouse microclimate parameter monitoring
DOI:
https://doi.org/10.31548/energiya2018.02.109Abstract
Under conditions of Ukraine, vegetable growing of closed soil in the conditions of small enterprises and households is carried out in framed greenhouses, which are mostly covered with a film. The introduction of measuring electrical systems in the conditions of such enterprises is complicated by their high cost, peculiarities of doing business and qualification of the personnel.
The purpose of the research is to increase the informativeness of the measuring electrical engineering complexes provided that the number of monitoring parameters increases with a limited number of actually measured physical quantities.
Achievement of the set goal is carried out by solving the following tasks: studying the parameters of the frame of the greenhouse when changing the temperature parameters; selection of technical means of electrical complexes for monitoring of microclimate parameters of framehouse greenhouses in the conditions of small farms. To solve the problem, the active resistance of the greenhouse frame, namely, its dynamics under the influence of the temperature of the external and internal environment, is considered.
The proposed measuring complex uses the resistance of the frame as an informative indicator. Influence of the temperature of the environment on the model and the model of the frame - the matrix of resistance is investigated. The informative method of the method is shown. Minimum requirements for the ADC of the measuring complex are proposed. The emphasis is on the possibility of measuring the dispersed temperature in the greenhouse and the ability to determine the direction of the wind based on the use of fuzzy logic. The directions of further researches, problems of practical implementation in Ukraine and abroad are given.
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