CN114397920B - Intelligent management and control method, device and system for rainwater irrigation and drainage ecology of saline-alkali soil - Google Patents
Intelligent management and control method, device and system for rainwater irrigation and drainage ecology of saline-alkali soil Download PDFInfo
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- 239000002689 soil Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000003973 irrigation Methods 0.000 title claims abstract description 40
- 230000002262 irrigation Effects 0.000 title claims abstract description 40
- 239000003513 alkali Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000001556 precipitation Methods 0.000 claims abstract description 22
- 230000014759 maintenance of location Effects 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 230000004044 response Effects 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 abstract description 9
- 150000003839 salts Chemical class 0.000 abstract description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract description 2
- 239000011780 sodium chloride Substances 0.000 abstract description 2
- -1 salt ion Chemical class 0.000 description 11
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 102220008684 rs2017800 Human genes 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses an intelligent control method, device and system for rainwater irrigation and drainage in saline-alkali soil, wherein the method comprises the following steps: after the weather forecast is accessed, firstly judging rainfall intensity and a time interval from last opening of a gate to discharge water, determining whether to continue opening or closing the gate, and further judging when to open the gate to discharge water again according to the precipitation amount and hydraulic retention time; the weather forecast information is accessed to carry out relevant judgment to automatically control the opening and closing of the gate, so that the aim of timely opening the gate and draining water is achieved, and the aim of utilizing the salt discharging capability of rainwater is maximized. Classifying is carried out according to the farmland smallclothes area, the area difference can divide into a group at + -15%, if the areas are similar, then the average grouping can get rid of the salinity of saline and alkaline land at effective time, and guaranteed that the plant root is not hurt, can not be because soaking time is insufficient and the salinity is got rid of inadequately again, realized the switch of intelligent control ridge floodgate valve.
Description
Technical Field
The invention belongs to the technical field of ecological agriculture management and control, and relates to an intelligent management and control method, device and system for rainwater irrigation and drainage in saline-alkali soil.
Background
The regulation and control of the water salt through the irrigation and drainage measures is an important mode for improving the saline soil, and has great significance for developing and utilizing the reserve field resources, improving the grain yield and guaranteeing the grain safety. The yellow river leading area at the middle and downstream of the yellow river in China is rapidly developed in the 50-60 th century, but the soil secondary salinization problem is forced to stop irrigation once. Therefore, the success and failure of water-salt regulation in the irrigation area is directly related to the problems of secondary salinization of soil and pollution to the drainage bearing and draining area, and has attracted great attention and importance to students for a long time. The method of irrigation and drainage is a relatively common method, but is usually implemented by manually draining water to the field, and draining water after soaking is completed, thereby being time-consuming, labor-consuming and expensive.
Disclosure of Invention
The purpose is as follows: aiming at the situation, in order to overcome the defects of the prior art and solve the problem that the rainwater in various rainy seasons can not be reasonably utilized in farmlands, the invention provides the intelligent control method, the intelligent control device and the intelligent control system for the irrigation and drainage of the rainwater in the saline-alkali soil, which are used for reasonably utilizing the rainwater to remove the salt in the soil to the maximum extent, can not cause the death of plants and also save manpower and material resources.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, a method for controlling ecological intelligence of rainwater irrigation and drainage in saline-alkali soil is provided, which comprises the following steps:
acquiring real-time weather forecast information, and acquiring real-time precipitation q according to the real-time weather forecast information;
in response to 0 < q Is provided with Continuously opening the gate, and recording the current opening water discharging time E ja Make this time switch off and drain time E ja Current time T, j=j+1;
in response to q.gtoreq Is provided with Recording the current time T as the time S when the precipitation starts ja (order S) ja The current time T) and judging whether the system operates for the first time, wherein j is the system cycle number, and a is the gate number corresponding to the farmland in the group;
responding to the first operation j=1, and sending out an instruction to control the gate closing water storage;
in response to the first operation j being not less than or equal to 2, according to the moment S when the precipitation starts ja And the last time the field is opened and the water is discharged E (j-1)a Calculating to obtain the time interval S from last open water discharge ja -E (j-1)a And judging the water discharge time interval S from the last opening ja -E (j-1)a Whether the field drainage airing time t is reached 2 ；
In response to j being greater than or equal to 2, and S ja -E (j-1)a ≥t 2 Sending out an instruction to control gate closing and water storage;
in response to j being greater than or equal to 2, and S ja -E (j-1)a ＜t 2 The instruction is sent to control the opening of the gate to drainAnd recording the current opening water discharging time E ja Make this time switch off and drain time E ja Current time T, j=j+1.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil is characterized in that in the process of closing a gate and storing water, the current time T is more than T 1 +S ja And T is greater than or equal to S ja +Z a Sending out an instruction to control the opening of the gate to drain water, and recording the current opening time E of the gate to drain water ja Make this time switch off and drain time E ja Current time T, j=j+1;
wherein t is 1 The time for the concentration of the overlying water salt ion to reach equilibrium; z is Z a A hydraulic retention time is required for the field corresponding to each group of gates numbered a.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil, Z a ＝t 1 +△t(a-1)，
Wherein Deltat is the optimal interval time of the water discharged by opening the gate of two adjacent fields in the same group; maximum residence time t of water in field 0 The method comprises the steps of carrying out a first treatment on the surface of the n is the number of packets by area.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil determines the longest residence time t of the water in the farmland according to the soil quality of the farmland and the type of the planted crops 0 Time t for the concentration of overlying water salt ion to reach equilibrium 1 Time t of field drainage and airing 2 The method comprises the steps of carrying out a first treatment on the surface of the By matching pairs t 1 And t 0 And (3) determining the optimal interval time delta t of water discharged by opening the same group of two adjacent fields and the number of farmland gates.
In some embodiments, the intelligent control method for rainwater irrigation and drainage in saline-alkali soil divides farmlands into n groups, each group is divided into a plurality of farmlands, the areas of the farmlands in the same group are the same or similar, gates corresponding to each group of farmlands are numbered a in sequence, and the numbers of each group are the same.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil comprises the following steps ofQ is as follows Is provided with Is the rainfall determined according to the precipitation standard of medium rain and above. Further, the q Is provided with Is 10mm.
In a second aspect, an intelligent control device for rainwater irrigation and drainage of saline-alkali soil is provided, which comprises a memory; and
a processor coupled to the memory, the processor configured to perform the method based on instructions stored in the memory.
In a third aspect, a system for controlling and controlling ecology of rainwater irrigation and drainage in saline-alkali soil is provided, which comprises an intelligent control device and further comprises:
the gates are arranged at water inlet and water outlet of each farmland of each group in a one-to-one correspondence manner, are connected with the intelligent control device and are configured to: and receiving an instruction sent by the intelligent control device, and executing the action of opening or closing the gate.
In some embodiments, the height of the gate is determined based on the highest water level H of the field unit.
The beneficial effects are that: according to the intelligent control method, device and system for the irrigation and drainage of the rainwater in the saline-alkali soil, disclosed by the invention, the automatic opening and closing of the gate can be realized without manpower and material resources, compared with manual opening and closing, remote control is more scientific, the maximum amount of salt discharged during irrigation and drainage treatment of the saline-alkali soil can be better, the growth of plants is protected, natural precipitation is utilized, the convenience is realized, the aim of ecological control is realized, and the requirements of ecological agriculture are met. The automatic control method utilizes natural precipitation and automatically controls the opening and closing of the valve, thereby greatly saving manpower and material resources. In addition, the automatic opening and closing of valves related to irrigation and drainage can be processed by the method.
Along with the development of science and technology, artificial intelligence automation is applied to various industries, and agriculture is taken as a support for development of China, so that the development of agriculture can be promoted by replacing the traditional agro-technical mode, and the intelligent control method for opening and closing the irrigation and drainage valve meets the requirements of intelligent agriculture and intelligent water conservancy in scientific development and has a good application prospect.
Drawings
FIG. 1 is a flow chart of a method according to an embodiment of the invention;
FIG. 2 is a schematic view showing a distribution of farmland gates according to an embodiment of the present invention;
FIG. 3 is a schematic view of a single block of farmland in accordance with an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
An intelligent management and control method for rainwater irrigation and drainage of saline-alkali soil, comprising the following steps:
acquiring real-time weather forecast information, and acquiring real-time precipitation q according to the real-time weather forecast information;
in response to 0 < q Is provided with Continuously opening the gate, and recording the current opening water discharging time E ja Make this time switch off and drain time E ja Current time T, j=j+1;
in response to q.gtoreq Is provided with Recording the current time T as the time S when the precipitation starts ja (order S) ja The current time T) and judging whether the system operates for the first time, wherein j is the system cycle number, and a is the gate number corresponding to the farmland in the group;
responding to the first operation j=1, and sending out an instruction to control the gate closing water storage;
in response to the first operation j being not less than or equal to 2, according to the moment S when the precipitation starts ja And the last time the field is opened and the water is discharged E (j-1)a Calculating to obtain the time interval S from last open water discharge ja -E (j-1)a And judging the water discharge time interval S from the last opening ja -E (j-1)a Whether the field drainage airing time t is reached 2 ；
In response to j being greater than or equal to 2, and S ja -E (j-1)a ≥t 2 Sending out an instruction to control gate closing and water storage;
in response to j being greater than or equal to 2, and S ja -E (j-1)a ＜t 2 Sending out an instruction to control the opening of the gate to drain water, and recording the current opening time E of the gate to drain water ja Make this time switch off and drain time E ja Current time T, j=j+1.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil is characterized in that in the process of closing a gate and storing water, the current time T is more than T 1 +S ja And T is greater than or equal to S ja +Z a Sending out an instruction to control the opening of the gate to drain water, and recording the current opening time E of the gate to drain water ja Make this time switch off and drain time E ja Current time T, j=j+1;
wherein t is 1 The time for the concentration of the overlying water salt ion to reach equilibrium; z is Z a A hydraulic retention time is required for the field corresponding to each group of gates numbered a.
In some embodiments, the intelligent control method for rainwater irrigation and drainage ecology of saline-alkali soil，Z a ＝t 1 +△t(a-1)，
Wherein Deltat is the optimal interval time of the water discharged by opening the gate of two adjacent fields in the same group; maximum residence time t of water in field 0 The method comprises the steps of carrying out a first treatment on the surface of the n is the number of packets by area.
In some embodiments, the intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil determines the longest residence time t of the water in the farmland according to the soil quality of the farmland and the type of the planted crops 0 Time t for the concentration of overlying water salt ion to reach equilibrium 1 Time t of field drainage and airing 2 The method comprises the steps of carrying out a first treatment on the surface of the By matching pairs t 1 And t 0 And (3) determining the optimal interval time delta t of water discharged by opening the same group of two adjacent fields and the number of farmland gates.
In some embodiments, the intelligent control method for rainwater irrigation and drainage in saline-alkali soil divides farmlands into n groups, each group is divided into a plurality of farmlands, the areas of the farmlands in the same group are the same or similar, gates corresponding to each group of farmlands are numbered a in sequence, and the numbers of each group are the same.
In some embodiments, the intelligent control method for rainwater irrigation and drainage ecology of the saline-alkali soil, the q Is provided with Is the rainfall determined according to the precipitation standard of medium rain and above. Further, the q Is provided with Is 10mm.
An intelligent management and control device for rainwater irrigation and drainage of saline-alkali soil comprises a memory; and
a processor coupled to the memory, the processor configured to perform the method based on instructions stored in the memory.
An intelligent management and control system for rainwater irrigation and drainage of saline-alkali soil comprises an intelligent management and control device and further comprises:
the gates are arranged at water inlet and water outlet of each farmland of each group in a one-to-one correspondence manner, are connected with the intelligent control device and are configured to: and receiving an instruction sent by the intelligent control device, and executing the action of opening or closing the gate.
In some embodiments, the height of the gate is determined based on the highest water level H of the field unit.
The invention provides an intelligent control method for rainwater irrigation and drainage ecological management of saline-alkali soil, which comprises the steps of firstly judging rainfall intensity and time interval from last opening of a gate to drain water after weather forecast is accessed, determining whether to continue opening or closing the gate, and further judging when to open the gate to drain water again according to precipitation and hydraulic retention time;
wherein, the time interval from last opening the gate to drain determines whether to continue opening the gate or closing the gate, the operation steps are as follows:
(1) According to the soil quality of the selected area, the type of the planted plants (generally, the plants which are relatively water-soaked) and the canal height are tested to obtain the longest residence time t of the water in the field 0 Further obtaining the time t for the concentration of the overlying water salt ion to reach balance according to the concentration change of the overlying water salt ion 1 。
(2) According to the area of the farmland in the selected area, the number of gates is calculated to obtain the drainage and airing time t of the farmland 2 。
(3) Calculating from the beginning of the system, recording the time as T, and starting the precipitation at the moment S ja When the system starts to run, S ja The value is assigned to 0, whether the precipitation q is larger than 0mm is judged according to weather forecast information, if yes, whether the precipitation q is larger than or equal to 10mm is judged, if not, the brake is continuously opened, the starting moment of the precipitation is updated to the current moment, and if yes, the command S is issued ja The current time T is adopted to further judge whether the operation is the first time, if so, the gate is directly closed for water storage, and if not, whether the water discharge time interval with the last gate opening exceeds the field water discharge airing time T is judged 2 If not, continuing to open the gate to drain water, and opening the gate to drain water at the moment E ja Updating, if yes, closing the gate to store water, calculating the water storage time, and judging whether the water storage time reaches the discharge standard t 2 。
(4) Thirdly, in order to prevent water from being discharged by uniform opening of gates in rainy seasons, the channels in the selected area are grouped according to the area n and numbered a (a is a positive integer of 1, 2 and 3), the numbers of each group are the same, and the water discharge starting time of each gate is recorded as Z a ＝t 1 +△t(a-1)，Judging whether the hydraulic retention time of the corresponding farmland plots reaches the discharge standard of the farmland plots, then opening the gate to discharge water in batches, and recording the time E when each numbered gate starts to discharge water ja 。
Example 1
First, collecting data, selecting a whole farmland, and grouping, as shown in FIG. 2, ten farmland into A, B groups, respectively labeled A 1、 A 2 、A 3 、A 4 、A 5 ，B 1 、B 2 、B 3 、B 4 、B 5 The soil drainage time t of the field was experimentally determined from the climate and soil conditions based on the highest water level per unit of field being h=0.08 m, the gate height being h=0.5 m (underground 0.23m, overground 0.27 m) 2 For =48 h, the water-soaked plants t are selected 0 Time t at which salt ions in soil begin to dissolve in water in large amounts =70 h (seawater rice) 1 =23 h. Each farmland was excavated and gates were installed in the manner of fig. 3, with controllable gates. Marking the installed valves with grouping numbers, connecting a computer with a controller, and enabling each group to operate as follows:
a1 is operated for the first time, t= 0,S 11 At the beginning of the calculation, j=0, j=1, a weather forecast is accessed, and because of the first run, the gates of farmland numbered 1 in all the groups are closed, waiting for precipitation, raining in 10:31:46 am (q=17 > 10 mm), S 11 When the current time is equal to the system time T > T 1 +S 11 When the valve is opened to drain water, the valve is opened according to Z 1 ＝t 1 The water discharge time is calculated, at this time, two groups of No. 1 gates are opened for water discharge, at this time E 11 When the current time is j=2, the one-time operation is ended.
Example 2:
as shown in FIG. 2, ten fields are divided into two groups A, B, labeled A respectively 1、 A 2 、A 3 、A 4 、A 5 ，B 1 、 B 2 、B 3 、B 4 、B 5 According to farmland unitsThe highest water level is H=0.08m, the gate height is h=0.5m (underground part 0.23m, overground part 0.27 m), and the soil drainage time t of the field is determined by experiment according to climate and soil conditions 2 For =48 h, the water-soaked plants t are selected 0 Time t at which salt ions in soil begin to dissolve in water in large amounts =70 h (seawater rice) 1 =23 h. Each farmland was excavated and gates were installed in the manner of fig. 3, with controllable gates. Marking the installed valves with grouping numbers, connecting a computer with a controller, and enabling each group to operate as follows:
a1 running the program for the second time S 21 =0, 6:00 in the morning in the middle rain (q=11 mm), S 21 When the current time of the system is equal to or more than 2, S 21 -E 12 ＜t 2 At this time, keep opening the gate to drain water, E 21 =current time. j=3 and the operation ends.
Example 3
As shown in FIG. 2, ten fields are divided into two groups A, B, labeled A respectively 1、 A 2 、A 3 、A 4 、A 5 ，B 1 、 B 2 、B 3 、B 4 、B 5 The soil drainage time t of the field was experimentally determined from the climate and soil conditions based on the highest water level per unit of field being h=0.08 m, the gate height being h=0.5 m (underground 0.23m, overground 0.27 m) 2 For =48 h, the water-soaked plants t are selected 0 Time t at which salt ions in soil begin to dissolve in water in large quantity =70 h (sea rice etc.) 1 =23 h. Each farmland was excavated and gates were installed in the manner of fig. 3, with controllable gates. Marking the installed valves with grouping numbers, connecting a computer with a controller, and enabling each group to operate as follows:
the third time of running the program, S31=0, the weather forecast shows, on sunny days (q=0), the weather forecast is continuously connected, the cycle is continued until the rainfall q is more than or equal to 10, S31=the current time of the system is more than or equal to 2, S31-E21 is more than or equal to T2, the gate closing and water storage are started, until the system time T is more than t1+S31, then Z1=t 1 < T-S31, open gate drain, e31=current time. The third run ends, j=4.
Example 4
As shown in FIG. 2, ten fields are divided into two groups A, B, labeled A respectively 1、 A 2 、A 3 、A 4 、A 5 ，B 1 、 B 2 、B 3 、B 4 、B 5 The soil drainage time t of the field was experimentally determined from the climate and soil conditions based on the highest water level per unit of field being h=0.08 m, the gate height being h=0.5 m (underground 0.23m, overground 0.27 m) 2 For =48 h, the water-soaked plants t are selected 0 Time t at which salt ions in soil begin to dissolve in water in large quantity =70 h (sea rice etc.) 1 =23 h. Each farmland was excavated and gates were installed in the manner of fig. 3, with controllable gates. Marking the installed valves with grouping numbers, connecting a computer with a controller, and enabling each group to operate as follows:
a1 fourth run program, S 41 =0, weather forecast shows, at night 23:00 has moderate rain (q=14 > 10), S 41 =current time of system, 4 is not less than 2, s 41 -E 31 ≥t 2 Starting to switch off the gate to store water until the system time T is more than T 1 +S 41 Z is then 1 ＝t 1 ＜T-S 41 Opening gate to drain, E 41 At the present time, the fourth run ends, j=5.
Example 5
As shown in FIG. 2, ten fields are divided into two groups A, B, labeled A respectively 1、 A 2 、A 3 、A 4 、A 5 ，B 1 、 B 2 、B 3 、B 4 、B 5 The soil drainage time t of the field was experimentally determined from the climate and soil conditions based on the highest water level per unit of field being h=0.08 m, the gate height being h=0.5 m (underground 0.23m, overground 0.27 m) 2 For =48 h, the water-soaked plants t are selected 0 Time t at which salt ions in soil begin to dissolve in water in large quantity =70 h (sea rice etc.) 1 =23 h. Each farmland was excavated and gates were installed in the manner of fig. 3, with controllable gates. Marking the installed valves with grouping numbers, connecting a computer with a controller, and enabling each group to operate as follows:
a1 fifth run, S 51 Weather forecast shows 14:00 rains (0 < q=3 < 10), then the brake is continuously opened, E 51 =current time. The fifth run ends, j=6.
Example 6
Number A2 at first run, t= 0,S 11 At the beginning of the calculation, j=0, j=1, a weather forecast is accessed, because it is the first run, so the gates numbered 1 in all the groups are closed, waiting for precipitation, 10:31:46 a.m. rains (q=17 > 10 mm), S 11 When the current time is equal to the system time T > T 1 +S 11 When the valve is opened to drain water, the valve is opened according to Z 2 ＝t 1 + △ t is calculated as the drainage time, at this time, two groups of gates No. 1 are both opened for drainage, at this time E 11 When the current time is j=2, the one-time operation is ended.
It will be apparent to those skilled in the art that embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. The intelligent control method for the rainwater irrigation and drainage ecology of the saline-alkali soil is characterized by comprising the following steps of:
acquiring real-time weather forecast information, and acquiring real-time precipitation q according to the real-time weather forecast information;
in response to 0 < q Is provided with Continuously opening the gate, and recording the current opening water discharging time E ja Make this time switch off and drain time E ja Current time T, j=j+1;
in response to q.gtoreq Is provided with Recording the current time T as the time S when the precipitation starts ja Let S ja The method comprises the steps of (1) determining the current time T and judging whether a system runs for the first time, wherein j is the system cycle number, and a is the gate number corresponding to the farmland in the group;
responding to the first operation j=1, and sending out an instruction to control the gate closing water storage;
in response to the first operation j being not less than or equal to 2, according to the moment S when the precipitation starts ja And the last time the field is opened and the water is discharged E (j-1)a Calculating to obtain the time interval S from last open water discharge ja -E (j-1)a And judging the water discharge time interval S from the last opening ja -E (j-1)a Whether the field drainage airing time t is reached 2 ；
In response to j being greater than or equal to 2, and S ja -E (j-1)a ≥t 2 Sending out an instruction to control gate closing and water storage;
in response to j being greater than or equal to 2, and S ja -E (j-1)a ＜t 2 Sending out an instruction to control the opening of the gate to drain water, and recording the current opening time E of the gate to drain water ja Make this time switch off and drain time E ja Current time T, j=j+1.
2. The intelligent control method for rainwater irrigation and drainage ecological management of saline-alkali soil according to claim 1, wherein in the process of closing a gate and storing water, the current time T is greater than T 1 +S ja And T is greater than or equal to S ja +Z a Sending out an instruction to control the opening of the gate to drain water, and recording the current opening time E of the gate to drain water ja Make this time switch off and drain time E ja Current time T, j=j+1;
wherein t is 1 The time for the concentration of the overlying water salt ion to reach equilibrium; z is Z a A hydraulic retention time is required for the field corresponding to each group of gates numbered a.
3. The intelligent control method for rainwater irrigation and drainage ecology of saline-alkali soil according to claim 2, wherein Z is as follows a ＝t 1 +△t(a-1)，
Wherein Deltat is the optimal interval time of the water discharged by opening the gate of two adjacent fields in the same group; maximum residence time t of water in field 0 The method comprises the steps of carrying out a first treatment on the surface of the n is the number of packets by area.
4. The intelligent control method for rainwater irrigation and drainage ecology of saline-alkali soil according to claim 3, wherein the longest residence time t of water in the field is determined according to soil property of the field and type of crops planted 0 Time t for the concentration of overlying water salt ion to reach equilibrium 1 Time t of field drainage and airing 2 The method comprises the steps of carrying out a first treatment on the surface of the By matching pairs t 1 And t 0 And (3) determining the optimal interval time delta t of water discharged by opening the same group of two adjacent fields and the number of farmland gates.
5. The intelligent control method for rainwater irrigation and drainage ecological of saline-alkali soil according to claim 1, wherein the farmland is divided into n groups, each group is divided into a plurality of groups, the areas of each farmland in the same group are the same or similar, gates corresponding to each group of farmland are numbered a in sequence, and the numbers of each group are the same.
6. The intelligent control method for rainwater irrigation and drainage ecology of saline-alkali soil according to claim 1, wherein q is as follows Is provided with Is the rainfall determined according to the precipitation standard of medium rain and above.
7. The intelligent control method for rainwater irrigation and drainage ecology of saline-alkali soil according to claim 1, wherein q is as follows Is provided with Is 10mm.
8. The intelligent control device for the rainwater irrigation and drainage of the saline-alkali soil is characterized by comprising a memory; and
a processor coupled to the memory, the processor configured to perform the method of any of claims 1-7 based on instructions stored in the memory.
9. An intelligent management and control system for rainwater irrigation and drainage of saline-alkali soil, which is characterized by comprising the intelligent management and control device as claimed in claim 8, and further comprising:
the gates are arranged at water inlet and water outlet of each farmland of each group in a one-to-one correspondence manner, are connected with the intelligent control device and are configured to: and receiving an instruction sent by the intelligent control device, and executing the action of opening or closing the gate.
10. The intelligent control system for rainwater irrigation and drainage in saline-alkali soil according to claim 9, wherein the height of the gate is determined according to the highest water level H of a farmland unit.
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