Irrigation scheduling method suitable for irrigation districts

Abstract

The invention discloses an irrigation scheduling method suitable for irrigation districts. The method includes the steps: generating a relational database among rotation irrigation groups, main channels and the districts; taking the ratio of gravity irrigation areas and total irrigation areas of planned districts larger than a preset ratio threshold value and irrigation amount of each planned district in allowed irrigation amount range as limit conditions to generate at least one irrigation scheme, enabling each irrigation scheme to correspond to a starting mode of one rotation irrigation group; evaluating each generated irrigation scheme by evaluation factors such as gravity irrigation areas, water delivery loss and channel head flow amount to obtain a comprehensive evaluation coefficientcorresponding to the irrigation area. According to the method, effective gravity irrigation of large-area irrigation districts can be achieved, water delivery kinetic energy loss is reduced, the generated irrigation schemes are evaluated by the evaluation factors such as the gravity irrigation areas, the water delivery loss and the channel head flow amount, water delivery loss is reduced, the channel head flow amount is stabilized, irrigation amount of each planned district is consistent with theoretical water requirement amount corresponding to the planned district as far as possible, and irrigation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of irrigation automation, in particular to an irrigation scheduling method suitable for irrigation areas. Background technique [0002] Modern agriculture advocates the unified management of large-scale farmland to improve the efficiency of crop cultivation. The growth of crops is inseparable from irrigation operations. Traditional irrigation operations use manual switch gates and manual monitoring to transport the water resources in the water source to the entire irrigation area along the main canals. [0003] There are huge problems in this method. First, the manpower consumption is large. Due to the huge irrigation area, it requires the cooperation of many people to barely complete the irrigation task. Third, the irrigation time corresponding to each area in the irrigation area is unreasonable. On the one hand, the actual irrigation volume in many areas is seriously inconsistent with the theoretical wate...

AI Technical Summary

Problems solved by technology

However, if this method is applied to large-scale irrigation areas, it will immediately bring new problems: (1) such a large-scale monitoring deployment and water pump deployment are costly and difficult to maintain; (2) even if the aforementioned conditions can be deployed on a large scale , the amount of collected data is huge, and there is no feasible scheme at present, which can plan an effective irrigation scheme based on such a large amount of monitoring data, such as changing the irrigation scheme frequently during the irrigation process, and fine-tuning the irrigation scheme Avoiding large water loss and kinetic energy loss

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