Treatment method, device and system for temperature control and energy conservation

Abstract

The invention provides a treatment method, a treatment device and a treatment system for temperature control and energy conservation. The treatment method for temperature control and energy conservation comprises the following steps: establishing a plurality of corresponding temperature prediction models according to the species of control devices; conducting model identification to the temperature prediction models according to collected history data and confirming all model parameters in the temperature prediction models, and establishing quadratic performance index according to the prediction temperature value output by the temperature prediction models, the deviation of the preset temperature and the energy loss started by the control devices; acquiring the corresponding on-off combination switching sequences of the control devices when the quadratic performance index reaches the minimum value and controlling the switch of the control devices according to the on-off combination switching sequences. The treatment device and the treatment system are used for carrying out the treatment method. According to the embodiment, the treatment method, the treatment device and the treatment system consider the greenhouse temperature and the energy loss in the controlling process of the control devices.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of greenhouse environment regulation, and in particular to a temperature control and energy-saving processing method, device and system. Background technique [0002] Greenhouse production can increase crop yield and improve crop quality to a certain extent. The development of this industry is of great significance to the adjustment of agricultural structure. Our government attaches great importance to the development of this industry. [0003] Since the end of the 1970s, my country has successively introduced complete sets of modern greenhouse equipment from abroad. Today's "13th Five-Year Plan" emphasizes vigorously promoting agricultural modernization and accelerating the transformation of agricultural development methods to stabilize the output of grain and important agricultural products and ensure national food security. and the effective supply of important agricultural produ...

AI Technical Summary

Problems solved by technology

Most of the greenhouse environment control equipment in my country (commonly found in solar greenhouses) are switch-type equipment, and the input variables only have two states of on and off. The internal environment is a dynamic system driven by discrete events. Modeling and control based on continuous input signals The method is difficult to apply to the greenhouse system

The main control method in actual production is Bang-Bang control, which has low control precision, large overshoot, and unsatisfactory economic benefits.

[0005] In order to improve the actual control effect of the greenhouse environment, a few scholars have proposed greenhouse environment system modeling and predictive control methods based on switching ideas. These methods can optimize the switching mode of switch control equipment to a certain extent, but only The control accuracy is considered, and the energy loss in the control process is not considered

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