CN114642161B - Intelligent water quantity adjusting system based on cloud platform - Google Patents

Intelligent water quantity adjusting system based on cloud platform Download PDF

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CN114642161B
CN114642161B CN202210458478.3A CN202210458478A CN114642161B CN 114642161 B CN114642161 B CN 114642161B CN 202210458478 A CN202210458478 A CN 202210458478A CN 114642161 B CN114642161 B CN 114642161B
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water
soil
time
real
water content
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CN114642161A (en
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钟瑛
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Hunan Pastoral Agricultural Science And Technology Development Co ltd
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Hunan Pastoral Agricultural Science And Technology Development Co ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/16—Control of watering
    • A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y10/00—Economic sectors
    • G16Y10/05—Agriculture
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y20/00—Information sensed or collected by the things
    • G16Y20/10—Information sensed or collected by the things relating to the environment, e.g. temperature; relating to location
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y20/00—Information sensed or collected by the things
    • G16Y20/20—Information sensed or collected by the things relating to the thing itself
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y40/00—IoT characterised by the purpose of the information processing
    • G16Y40/10—Detection; Monitoring
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y40/00—IoT characterised by the purpose of the information processing
    • G16Y40/20—Analytics; Diagnosis
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
    • G16Y40/00—IoT characterised by the purpose of the information processing
    • G16Y40/30—Control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion

Abstract

The invention discloses an intelligent water quantity regulating system based on a cloud platform, which belongs to the technical field of water quantity regulation, and particularly comprises the cloud platform, wherein crop growth information and farmland basic information are stored in the cloud platform; the soil monitoring module monitors the real-time water content H of the soil within the range of the active layer of the crop root system; the water quantity matching module is used for matching the current crop with the water-containing interval [ m, n ]]Comparing with the real-time water content of the soil; the data processing module is used for acquiring the real-time water content of the soil to be equal to
Figure DDA0003619584100000011
The descending speed of the water is calculated according to the descending speed, and the long-term water delivery flow is determined according to the descending speed of the total water of the active layer of the crop root system; the irrigation mechanism is used for delivering water according to the long-term water delivery flow; the invention realizes the acquisition of the change speed of the soil when the real-time water content is in the median value of the suitable water content interval of the crop soil so as to determine the long-term water delivery flow of irrigation.

Description

Intelligent water quantity adjusting system based on cloud platform
Technical Field
The invention relates to the technical field of farm irrigation, in particular to an intelligent water quantity regulating system based on a cloud platform.
Background
In order to ensure the normal growth of crops, obtain high and stable yield, the crops must be supplied with sufficient moisture. Under natural conditions, the requirements of crops on moisture cannot be met due to insufficient precipitation or uneven distribution. Therefore, irrigation must be performed artificially to compensate for the shortage of natural rainfall.
The prior art has in most cases been experienced in determining the time and amount of water needed to water a farm or in scheduling delivery of a corresponding amount of water in the event that it is detected that the farm has approached the real time of water shortage. Therefore, the moisture in the farmland is easy to change greatly, and the dry humidity in the soil is unfavorable for the growth of crops. The effective solution is to irrigate crops continuously through the spray pipe and drip irrigation, and the continuous irrigation needs to have accurate control on the water quantity, so as to avoid the phenomenon of excessively high or excessively low soil moisture. Because the change speed of the water content in the farmland is always a dynamic process, the higher the water content is, the slower the falling speed is, therefore, in order to accurately control the irrigation water flow, the water content of the soil is required to be equal to the change speed of the soil in a proper crop growth state, and then the irrigation water flow is adjusted, so that the irrigation water amount and the consumed water amount are balanced, and the proper water content of the soil for crop growth is always maintained.
Disclosure of Invention
The invention aims to provide an intelligent water quantity regulating system based on a cloud platform, which solves the following technical problems:
the prior art cannot acquire the real-time change speed of the water content of the soil, and the water flow of irrigation is difficult to balance with the evaporated water, so that the soil for crop growth cannot keep proper water content for a long time.
The aim of the invention can be achieved by the following technical scheme:
intelligent water quantity adjusting system based on cloud platform includes:
the cloud platform is used for storing crop growth information and farmland basic information, wherein the crop growth information comprises a soil suitable water-containing interval [ m, n ] and a crop root system active layer, and the farmland basic information comprises a standard unit area of a farmland and an average soil volume weight;
the soil monitoring module monitors the real-time water content H of the soil within the range of the crop root system active layer;
the water quantity matching module is used for acquiring a soil suitable water-containing zone corresponding to the current crop, comparing the soil suitable water-containing zone with the real-time water content of the soil, stopping water delivery if H is more than n, and reducing H to
Figure BDA0003619584080000021
If->
Figure BDA0003619584080000022
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure BDA0003619584080000023
If->
Figure BDA0003619584080000024
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure BDA0003619584080000025
The data processing module is used for acquiring the real-time water content of the soil from n to n
Figure BDA0003619584080000026
A time-dependent curve, the real-time moisture content of which in the soil is calculated to be equal to +.>
Figure BDA0003619584080000027
Slope k at the time, and acquiring real-time water content of soil to be equal to +.>
Figure BDA0003619584080000028
Rate of descent V at time H According to the falling speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z According to the total water yield descending speed V of the crop root system active layer Z Determining long-term water delivery flow Q;
and the irrigation mechanism is used for acquiring the long-term water delivery flow and delivering water through the main water delivery pipeline.
As a further scheme of the invention: acquiring the descent speed V H The specific method of (a) is as follows:
establishing a rectangular coordinate system, respectively taking the real-time water content and time of the soil as an ordinate and an abscissa, and obtaining that the real-time water content of the curve in the soil is equal to
Figure BDA0003619584080000029
Coordinates of time->
Figure BDA00036195840800000210
Acquiring a point (x 1 ，y 1 ) Then go beyond
Figure BDA00036195840800000211
And point (x) 1 ，y 1 ) Slope of straight line +.>
Figure BDA00036195840800000212
Then when Deltax.fwdarw.0, k is 1 Infinite approach to curve at point +.>
Figure BDA00036195840800000213
Slope k at this point, obtain this time k 1 And then V H ＝k 1 。
As a further scheme of the invention: according to the falling speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z Extracting a standard unit area S, a soil average volume weight R and a crop root system active layer D from the cloud platform, and obtaining a standard unit area S, a soil average volume weight R and a crop root system active layer D by a formula
Figure BDA0003619584080000031
And->
Figure BDA0003619584080000032
Calculating the total water yield dropping speed V of the active layer of the crop root system Z ＝SDRV H The long-term water flow q=v Z ＝SDRk 1 。
As a further scheme of the invention: the main water conveying pipeline is connected with a plurality of water distributing pipelines, the farmland is divided into a plurality of areas, and each water distributing pipeline is used for conveying water for the corresponding area.
As a further scheme of the invention: the method for acquiring the real-time water content of the soil comprises the following steps: and obtaining the regional water content of each region, and carrying out average operation on the regional water content to obtain the real-time water content of the soil.
As a further scheme of the invention: weather information is also stored in the cloud platform, the weather information comprises rainfall P and rainwater density rho in one hour in the future, and the total rainfall M of farmland in one hour in the future is calculated according to the rainfall P 1 PS ρ, and acquire one hour into the futureTotal water yield drop M of crop root system active layer 2 ＝SDRk 1 h, M is 1 And M is as follows 2 For comparison, if M 1 ＜M 2 Adjusting the water delivery flow of one hour in the future to be
Figure BDA0003619584080000033
As a further scheme of the invention: will M 1 And M is as follows 2 For comparison, if M 1 ＝M 2 And stopping water delivery for one hour in the future.
As a further scheme of the invention: will M 1 And M is as follows 2 For comparison, if M 1 ＞M 2 And stopping water delivery, and sending an alarm by the system.
The invention has the beneficial effects that:
according to the method, the real-time water content of the soil in the range of the movable soil layer of the crop root system is monitored, the falling curve of the water content under natural external conditions is obtained, the falling speed of the real-time water content of the soil in the middle value of the soil suitable for the water-containing zone is obtained through the curve, and then the falling speed of the total water quantity of the movable soil layer of the crop root system is calculated, so that the long-term water delivery flow of the soil water content in the soil suitable for the water-containing zone is obtained under the current external conditions, the crop is always kept in a suitable growth environment, the problem that the growth state of the crop is influenced due to the fact that the change amplitude of the soil water content is too large in the prior art is solved, and sufficient conditions are provided for healthy growth of the crop; when external conditions are changed again to change the real-time water content of the soil, the invention increases the real-time water content of the soil to the maximum value of a suitable water-containing interval through water delivery, acquires the descending speed of the real-time water content of the soil when the real-time water content of the soil descends to the median value of the suitable water-containing interval again, and determines the new long-term water delivery flow, so that the invention can still keep the water content of the soil in a state suitable for crops for a long time under different environments; by comparing the total rainfall of farmland in the future with the total water quantity reduction of the movable layer of the crop root system, the invention can still keep the real-time water content of soil equal to the median value of a suitable water-containing zone when the total rainfall of farmland is small, and can give out an alarm in advance when the rainfall flow is large, thereby avoiding farmland disasters and ensuring the grain safety.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart 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. 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.
Referring to fig. 1, the present invention is an intelligent water volume adjusting system based on a cloud platform, comprising:
the cloud platform is used for storing crop growth information and farmland basic information, wherein the crop growth information comprises a soil suitable water-containing interval [ m, n ] and a crop root system active layer, and the farmland basic information comprises a standard unit area of a farmland and an average soil volume weight; the soil volume weight is the average volume weight of the soil of the crop root system active layer;
the soil monitoring module monitors the real-time water content H of the soil within the range of the crop root system active layer;
the water quantity matching module is used for acquiring a soil suitable water-containing zone corresponding to the current crop, comparing the soil suitable water-containing zone with the real-time water content of the soil, stopping water delivery if H is more than n, and reducing H to
Figure BDA0003619584080000051
If->
Figure BDA0003619584080000052
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure BDA0003619584080000053
If->
Figure BDA0003619584080000054
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure BDA0003619584080000055
The data processing module is used for acquiring the real-time water content of the soil from n to n
Figure BDA0003619584080000056
A time-dependent curve, the real-time moisture content of which in the soil is calculated to be equal to +.>
Figure BDA0003619584080000057
Slope k at the time, and acquiring real-time water content of soil to be equal to +.>
Figure BDA0003619584080000058
Rate of descent V at time H According to the falling speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z According to the total water yield descending speed V of the crop root system active layer Z Determining long-term water delivery flow Q;
and the irrigation mechanism is used for acquiring the long-term water delivery flow and delivering water through the main water delivery pipeline.
The prior art has in most cases been experienced in determining the time and amount of water needed to water a farm or in scheduling delivery of a corresponding amount of water in the event that it is detected that the farm has approached the real time of water shortage. Therefore, the moisture in the farmland is easy to change greatly, and the dry humidity in the soil is unfavorable for the growth of crops. The effective solution is to irrigate crops continuously through the spray pipe and drip irrigation, and the continuous irrigation needs to have accurate control on the water quantity, so as to avoid the phenomenon of excessively high or excessively low soil moisture. Because the change speed of the water content in the farmland is always a dynamic process, the higher the water content is, the slower the falling speed is, therefore, in order to accurately control the irrigation water flow, the water content of the soil is required to be equal to the change speed of the soil in a proper crop growth state, and then the irrigation water flow is adjusted, so that the irrigation water amount and the consumed water amount are balanced, and the proper water content of the soil for crop growth is always maintained.
According to the method, the real-time water content of the soil in the range of the movable soil layer of the crop root system is monitored, the falling curve of the water content under natural external conditions is obtained, the falling speed of the real-time water content of the soil in the middle value of the soil suitable for the water-containing zone is obtained through the curve, and then the falling speed of the total water quantity of the movable soil layer of the crop root system is calculated, so that the long-term water delivery flow of the soil water content in the soil suitable for the water-containing zone is obtained under the current external conditions, the crop is always kept in a suitable growth environment, the problem that the growth state of the crop is influenced due to the fact that the change amplitude of the soil water content is too large in the prior art is solved, and sufficient conditions are provided for healthy growth of the crop; when external conditions are changed again to change the real-time water content of the soil, the invention increases the real-time water content of the soil to the maximum value of the suitable water content interval through water delivery, acquires the descending speed of the real-time water content of the soil when the real-time water content of the soil descends to the median value of the suitable water content interval again, and determines the new long-term water delivery flow.
In a preferred embodiment of the invention, the descent speed V is obtained H The specific method of (a) is as follows:
establishing a rectangular coordinate system, respectively taking the real-time water content and time of the soil as an ordinate and an abscissa, and obtaining that the real-time water content of the curve in the soil is equal to
Figure BDA0003619584080000061
Coordinates of time->
Figure BDA0003619584080000062
Acquiring a point (x 1 ，y 1 ) Then go beyond
Figure BDA0003619584080000063
And point (x) 1 ，y 1 ) Slope of straight line +.>
Figure BDA0003619584080000064
Then when Deltax.fwdarw.0, k is 1 Infinite approach to curve at point +.>
Figure BDA0003619584080000065
Slope k at this point, obtain this time k 1 And then V H ＝k 1 。
Because the real-time water content change speed of the soil is influenced by a plurality of factors such as temperature, light intensity, wind speed and water content, a function cannot be directly established to conduct derivative operation on the curve, and the real-time water content of the soil is equal to that of the soil
Figure BDA0003619584080000066
The slope of the time curve can only be obtained to calculate the approach value k of the slope k by the adjacent point coordinates 1 Since the slope is physically present in units of ordinate versus abscissa, the moisture content of the curve in real time is then equal to +.>
Figure BDA0003619584080000067
The slope at that time, i.e. the real-time rate of water content decrease V at that time H 。
In the present embodiment, according to the descent speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z Extracting a standard unit area S, a soil average volume weight R and a crop root system active layer D from the cloud platform, and obtaining a standard unit area S, a soil average volume weight R and a crop root system active layer D by a formula
Figure BDA0003619584080000068
And->
Figure BDA0003619584080000069
Calculating the total water yield dropping speed V of the active layer of the crop root system Z ＝SDRV H The long-term water flow q=v Z ＝SDRk 1 。
The average soil volume weight R is the average soil volume weight of a crop active layer, and the soil volume weight refers to the ratio of the mass of soil with a certain volume after drying to the volume before drying; the crop root system active layer D refers to a soil layer from which the main root system of the crop can absorb moisture; so the calculation formula of the total water quantity in the range of the movable layer of the crop root system in the farmland is SDRH, and the change speed of the total water quantity of the soil layer in unit time T is
Figure BDA0003619584080000071
And the formula of the change speed of the real-time water content of the soil in unit time is
Figure BDA0003619584080000072
V is now known H The total water drop speed V of the movable layer of the crop root system can be calculated Z ＝SDRV H Long-term water flow q=v Z ＝SDRk 1 。
In another preferred embodiment of the present invention, the irrigation mechanism is provided with a plurality of water delivery pipelines, the main water delivery pipeline is connected with a plurality of water distribution pipelines, the farmland is divided into a plurality of areas, and each water distribution pipeline is used for delivering water to the corresponding area; the water distribution pipelines respectively distribute water to ensure that the water content of each region of the farmland is kept balanced, so that the problems of overlarge water content difference and water and soil loss of each region of the farmland caused by single-pipeline water inflow are avoided.
The method for obtaining the real-time water content of the soil is to obtain the regional water content of each region and perform average operation to obtain the real-time water content of the soil.
In another preferred embodiment of the present invention, weather information is also stored in the cloud platform, the weather information includes a rainfall P and a rainfall density ρ within one hour in the future, and the total rainfall M of the farmland in one hour in the future is calculated according to the rainfall P 1 PS ρ, and obtain the total water yield decrease M of the root system active layer of the crop one hour in the future 2 ＝SDRk 1 h, M is 1 And M is as follows 2 For comparison, if M 1 ＜M 2 Adjusting the water delivery flow of one hour in the future to be
Figure BDA0003619584080000073
When rainfall exists in the future one hour, but the total rainfall M of farmland in the future one hour 1 Is smaller than the total water yield drop M of the active layer of the crop root system 2 And the water delivery flow of one hour in the future is adjusted so that the water delivery flow plus the rainfall is exactly equal to the original water delivery flow, and the real-time water content of the soil is kept at the current level.
In another case of the present embodiment, M 1 And M is as follows 2 For comparison, if M 1 ＝M 2 And stopping water delivery for one hour in the future.
At this time, the total rainfall M of farmland 1 Total water yield drop M of active layer of root system of crop 2 And the balance is kept, so that water delivery is not needed.
In another case of the present embodiment, M 1 And M is as follows 2 For comparison, if M 1 ＞M 2 And stopping water delivery, and sending an alarm by the system.
In this case, the total rainfall M of one hour of farmland 1 The total water yield drop M of the active layer of the root system of the crop is larger than 2 After rainfall starts, the real-time water content of the soil can be rapidly increased and exceeds a suitable water-containing region of the soil of crops, so that an alarm needs to be sent out to remind personnel of working in farmland waterlogging disaster prevention.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (6)

1. Intelligent water quantity adjusting system based on cloud platform, its characterized in that includes:
the cloud platform is used for storing crop growth information and farmland basic information, wherein the crop growth information comprises a soil suitable water-containing interval [ m, n ] and a crop root system active layer, and the farmland basic information comprises a standard unit area of a farmland and an average soil volume weight;
the soil monitoring module monitors the real-time water content H of the soil within the range of the crop root system active layer;
the water quantity matching module is used for acquiring a soil suitable water-containing zone corresponding to the current crop, comparing the soil suitable water-containing zone with the real-time water content of the soil, stopping water delivery if H is more than n, and reducing H to
Figure FDA0004212868880000011
If->
Figure FDA0004212868880000012
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure FDA0004212868880000013
If->
Figure FDA0004212868880000014
Then water is firstly delivered, and water delivery is stopped when H reaches n, and H is reduced to +.>
Figure FDA0004212868880000015
The data processing module is used for acquiring the real-time water content of the soil from n to n
Figure FDA0004212868880000016
A time-dependent curve, the real-time moisture content of which in the soil is calculated to be equal to +.>
Figure FDA0004212868880000017
Slope k at the time, and acquiring real-time water content of soil to be equal to +.>
Figure FDA0004212868880000018
Rate of descent V at time H According to the falling speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z According to the total water yield descending speed V of the crop root system active layer Z Determining long-term water delivery flow Q;
the irrigation mechanism is used for acquiring the long-term water delivery flow and delivering water through the main water delivery pipeline;
acquiring the descent speed V H The specific method of (a) is as follows:
establishing a rectangular coordinate system, respectively taking the real-time water content and time of the soil as an ordinate and an abscissa, and obtaining that the real-time water content of the curve in the soil is equal to
Figure FDA0004212868880000019
Coordinates of time->
Figure FDA00042128688800000110
Acquiring a point (x 1 ，y 1 ) Then go beyond
Figure FDA00042128688800000111
And point (x) 1 ，y 1 ) Slope of straight line +.>
Figure FDA00042128688800000112
Then when Deltax.fwdarw.0, k is 1 Infinite approach to curve at point +.>
Figure FDA00042128688800000113
Slope k at this point, obtain this time k 1 And then V H ＝k 1 ；
According to the falling speed V H Calculating the total water yield dropping speed V of the active layer of the crop root system Z Extracting a standard unit area S, a soil average volume weight R and a crop root system active layer D from the cloud platform, and obtaining a standard unit area S, a soil average volume weight R and a crop root system active layer D by a formula
Figure FDA0004212868880000021
And->
Figure FDA0004212868880000022
Calculating the total water yield dropping speed V of the active layer of the crop root system Z ＝SDRV H The long-term water flow q=v Z ＝SDRk 1 。
2. The intelligent water quantity regulating system based on the cloud platform as claimed in claim 1, wherein the main water pipeline is connected with a plurality of sub water pipelines, the farmland is divided into a plurality of areas, and each sub water pipeline is used for conveying water for the corresponding area.
3. The intelligent water quantity regulating system based on a cloud platform as claimed in claim 2, wherein the method for acquiring the real-time water content of the soil is as follows: and obtaining the regional water content of each region, and carrying out average operation on the regional water content to obtain the real-time water content of the soil.
4. The intelligent water quantity regulating system based on the cloud platform as claimed in claim 1, wherein weather information is stored in the cloud platform, the weather information comprises rainfall P and rainfall density ρ in one hour in the future, and the total rainfall M of farmland in one hour in the future is calculated according to the rainfall P 1 PS ρ, and obtain the total water yield decrease M of the root system active layer of the crop one hour in the future 2 ＝SDRk 1 h, M is 1 And M is as follows 2 For comparison, if M 1 ＜M 2 Adjusting the water delivery flow of one hour in the future to be
Figure FDA0004212868880000023
5. The intelligent water level regulation system of claim 4 wherein M1 is compared with M2, if M 1 ＝M 2 And stopping water delivery for one hour in the future.
6. The intelligent water level regulation system of claim 4 wherein M1 is compared with M2, if M 1 ＞M 2 And stopping water delivery, and sending an alarm by the system.
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