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Rotational irrigation group dividing method

A wheel irrigation and algorithm technology, which is applied in special data processing applications, instruments, electrical digital data processing, etc., to achieve the effects of improving design efficiency, shortening division time, and dispersing flow

Active Publication Date: 2017-07-18
CAMCE WHU DESIGN & RES CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for dividing the irrigation wheel group, which uses the combination of the bubble sorting algorithm and the greedy algorithm to deal with the comprehensive balance of the flow rate and head of the irrigation wheel group. Improve the optimization level of the pipe network, shorten the division time of the wheel irrigation group in the design of the pipe network, and improve the design efficiency of the pipe network

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specific Embodiment approach

[0084] Specific implementation method, get N=149, M=24, promptly the quantity of wheel irrigation branch pipe is 149, and the quantity of wheel irrigation group is 24, then has 24 1 +24 2 +24 3 +...+24 (149-24) It is almost impossible to calculate such an allocation plan by computer enumeration method; it takes 1 to 2 days to obtain a feasible plan by using the artificial experience method and combining the Excel table, and it is not necessarily the optimal plan; and By adopting the wheel irrigation group division method of the present invention, it only takes a few seconds to obtain the optimal solution, that is, the best plan for wheel irrigation group division through program realization.

[0085] The specific calculation results are shown in Table 1 below:

[0086] Table 1 Calculation results of round irrigation group

[0087]

[0088]

[0089] Calculation results show that the maximum flow in the wheel irrigation branch pipe is 261.66m 3 / h, the maximum head of...

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Abstract

The present invention relates to a rotational irrigation group dividing method. The method comprises the following steps: step 1: establishing a mathematical model of rotational irrigation group dividing; and step 2: allocating all branch pipes of rotational irrigation, so that the objective function of the mathematical model established in the step 1 is minimized, namely, the jetting height and the flow rate of each rotational irrigation group reach comprehensive balance. Beneficial effects of the method disclosed by the present invention are that: the bubbling sorting algorithm and the greedy algorithm are used in a combination manner to process the problem of comprehensive balance of the jetting height and the flow rate of the rotational irrigation group, so that the optimization level of the pipe network is improved, the rotational irrigation group dividing time in the pipe network design is shortened, and efficiency of pipe network design is improved.

Description

technical field [0001] The invention relates to the technical fields of agriculture and garden irrigation, in particular to a method for dividing irrigation wheel groups. Background technique [0002] The design of water-saving irrigation (mainly sprinkler and drip irrigation) mainly includes two stages: pipe network layout and wheel irrigation scheme division. Generally, the two are complementary to each other. However, considering the convenience of construction and the specifications of pipelines, in recent years, many places The pipe network adopts a fixed pattern, so the current design of water-saving irrigation mainly lies in the division of rotational irrigation schemes. The realization of wheel irrigation is mainly to control the opening and closing of the valves at the entrance of ground branch pipes or spraying branch pipes, so as to achieve the purpose of irrigation in turn for each branch pipe of the system, so as to disperse the flow and save project investment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 顾巍杨琳吴光星
Owner CAMCE WHU DESIGN & RES CO LTD
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