Automatic greenhouse temperature set value obtaining method considering energy conservation and optimal yield benefit

Abstract

The invention relates to an automatic greenhouse temperature set value obtaining method considering energy conservation and optimal yield benefit. The method comprises the following steps of 1) acquiring historical climate information of a planting area; 2) according to built full-cycle yield model and energy consumption model which can be used for actual optimization calculation, by taking the energy conservation and the optimal yield benefit of a full cycle of greenhouse production as a target, calculating an initial set value of a daily average temperature by adopting a particle swarm algorithm; 3) acquiring weather forecast information of seven days in the future, and by taking the energy conservation and the optimal yield benefit of the seven days as a target, carrying out secondary optimization on the initial daily average temperature by using a rolling optimization algorithm to obtain a final set value of the daily average temperature; and 4) according to the final set value ofthe daily average temperature, and by taking the maximum photosynthesis rate of that day as a target, further automatically setting temperature set values of different time periods within one day by using a sequential quadratic programming algorithm. Compared with the prior art, the method has the advantages of automatic temperature adjustment, energy conservation, income increase and the like.

Description

technical field [0001] The invention relates to the technical field of agricultural greenhouse environment control optimization, in particular to a method for automatically obtaining a greenhouse temperature setting value in consideration of energy saving and optimal yield benefit. Background technique [0002] Greenhouse environmental control with optimal economic benefits is based on effective intervention in the greenhouse microclimate to maximize yield and minimize energy consumption throughout the production period. From the perspective of the entire greenhouse production process, the selection of greenhouse environmental variable set values ​​is an overall issue related to the overall energy consumption and economic benefits of the entire greenhouse production process, and determines the final economic benefits of greenhouse production to a large extent. The greenhouse environment setting value should not only meet the needs of crop growth to increase the yield of crop...

AI Technical Summary

Problems solved by technology

This method considers that the temperature of the greenhouse is in the most suitable environment for crop growth, but it does not consider whether the energy consumption is reduced, nor does it consider the economic benefits of the entire production cycle of the greenhouse; The requirement for personnel is relatively high, which is not conducive to the promotion and use of large-scale areas

Images