Agricultural water-saving irrigation method, system, equipment and medium based on the Internet of Things

Abstract

The present invention discloses an agricultural water-saving irrigation method, system, equipment and medium based on the Internet of Things, and relates to the technical field of agricultural irrigation, including: recording an area to be irrigated as an irrigation area; using an irrigation parameter extraction method for analysis, and setting an initial irrigation threshold; sampling the main irrigation area, and obtaining the water replenishment interval of each main irrigation area; irrigating the irrigation area based on the water replenishment interval of each main irrigation area. The present invention is used to solve the problem that in the prior art, in the improvement of agricultural water-saving irrigation in terms of weather based on the Internet of Things, when the irrigation technology is very mature, the irrigation water consumption still cannot match the actual weather conditions, resulting in drought or waterlogging in the field.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation, and in particular to an agricultural water-saving irrigation method, system, equipment and medium based on the Internet of Things. Background Art

[0002] Agricultural irrigation mainly refers to irrigation operations in agricultural farming areas. Agricultural irrigation methods can generally be divided into traditional surface irrigation, ordinary sprinkler irrigation and micro-irrigation. In ancient China, agricultural irrigation relied on precipitation from the sky and rivers on the ground. Farming was mainly concentrated in areas with abundant precipitation and well-developed river networks. Farmers in these areas often engaged in agricultural production according to the solar terms. At this stage, with the popularization of the Internet of Things, the Internet of Things can provide more and more help in water conservation in agricultural irrigation.

[0003] Existing improvements in agricultural water-saving irrigation based on the Internet of Things are usually improvements in irrigation equipment. For example, in the Chinese patent with application publication number CN109644827A, an agricultural Internet of Things intelligent water-saving irrigation system and a water-saving irrigation method thereof are disclosed. This scheme is to avoid the waste of water resources by directional irrigation of the unit sensing area, and play a role in saving irrigation water. Other improvements in agricultural water-saving irrigation based on the Internet of Things are usually used to realize grid management of multiple devices of irrigation equipment, thereby improving the spraying efficiency of irrigation equipment on the irrigation area. However, in the improvement of agricultural water-saving irrigation based on the Internet of Things in terms of weather, there is a lack of effective improvement methods. When the weather in the field changes, if the amount of water used for irrigation cannot be adjusted according to the weather changes, even if the irrigation equipment sprays very accurately and the technology of grid management is very mature, the amount of water used for irrigation will still not match the actual weather conditions, resulting in drought or waterlogging in the field, thereby causing crops to be destroyed or even the soil to be unusable. In view of this, it is necessary to improve the existing agricultural water-saving irrigation method based on the Internet of Things. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the prior art to a certain extent, by proposing an agricultural water-saving irrigation method, system, equipment and medium based on the Internet of Things, so as to solve the problem in the prior art that in the improvement of agricultural water-saving irrigation in terms of weather based on the Internet of Things, the amount of water used for irrigation cannot match the actual weather conditions, resulting in drought or waterlogging in the fields, thereby causing the destruction of crops and even the unusability of the soil.

[0005] To achieve the above objectives, in a first aspect, the present invention provides an agricultural water-saving irrigation method based on the Internet of Things, comprising:

[0006] The area that needs to be irrigated is recorded as an irrigation area, and the irrigation area is divided and recorded as irrigation main area 1 to irrigation main area M;

[0007] Use irrigation parameter extraction method to analyze soil and crops in the main irrigation area, and set the initial irrigation threshold based on the analysis results;

[0008] Sampling the main irrigation area, and using the weather simulation method based on the Internet of Things technology to process the sampling results and obtain the water replenishment interval of each main irrigation area;

[0009] The irrigation areas are irrigated based on the water replenishment interval of each irrigation main area.

[0010] Furthermore, the area that needs to be irrigated is recorded as an irrigation area, and the irrigation area is divided and recorded as irrigation main area 1 to irrigation main area M including:

[0011] Obtain all types of crops that need to be irrigated in the irrigation area, and record them as irrigated crop 1 to irrigated crop A in sequence;

[0012] For any irrigated crop A1 from irrigated crop 1 to irrigated crop A, the area that needs to be sprayed when irrigating irrigated crop A1 is recorded as the main irrigation area M1;

[0013] The main irrigation areas of all irrigated crops are obtained and recorded as irrigation main area 1 to irrigation main area M in sequence.

[0014] Furthermore, the soil and crops in the main irrigation area are analyzed using the irrigation parameter extraction method, and the initial irrigation threshold is set based on the analysis results, including:

[0015] Acquire soil and crops in all major irrigated areas;

[0016] All irrigation main areas were analyzed using irrigation parameter extraction method;

[0017] Based on the analysis results, the initial irrigation thresholds of all main irrigation areas are obtained and recorded as irrigation threshold 1 to irrigation threshold B in sequence.

[0018] Further, the irrigation parameter extraction method includes:

[0019] For any irrigation main area M1 from irrigation main area 1 to irrigation main area M;

[0020] Obtain the field water holding capacity required by the irrigated crop A1 planted in the main irrigation area M1 during normal growth, recorded as the standard water holding percentage C1;

[0021] Obtain the field water holding capacity of the soil in the main irrigation area M1 without irrigation, recorded as the conventional water holding percentage D1;

[0022] The historical irrigation data of the main irrigation area M1 is obtained, and the amount of water required to increase the field water holding capacity of the soil in the main irrigation area M1 from the conventional water holding percentage D1 to the standard water holding percentage C1 is obtained from the historical irrigation data, which is recorded as the initial irrigation threshold of the main irrigation area M1.

[0023] Furthermore, the main irrigation area is sampled, and the sampling results are processed using the weather simulation method based on the Internet of Things technology to obtain the water replenishment interval of each main irrigation area, including:

[0024] For any irrigation main area M1 from irrigation main area 1 to irrigation main area M;

[0025] The soil of the main irrigation area M1 and the irrigated crop A1 are sampled, and the soil of the main irrigation area M1 is recorded as the test soil E1, wherein the soil whose field water holding capacity is the conventional water holding percentage is sampled during sampling;

[0026] Weather simulation methods include:

[0027] Obtain all weather conditions that may occur in the irrigation area and record them as weather condition 1 to weather condition N in sequence;

[0028] The atmospheric humidity in the irrigation area under all weather conditions is obtained in sequence using the Internet and recorded as weather humidity 1 to weather humidity O in sequence;

[0029] The test soil E1 is placed in an environment with a weather humidity of 1 to a weather humidity of 0 in sequence and the field water holding capacity of the test soil is obtained after a standard growth time, and is recorded as weather water holding percentage 1 to weather water holding percentage P in sequence, wherein the standard growth time is the time required for the irrigated crop A1 in the main irrigation area M1 to be killed by drought;

[0030] The weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are greater than or equal to the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather without water replenishment; the weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are less than the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather with special water replenishment requirements.

[0031] Furthermore, the weather simulation method also includes:

[0032] The value of the irrigation threshold B1 divided by L is recorded as the single irrigation water volume;

[0033] The weather conditions corresponding to all special water replenishment weather conditions are recorded as water replenishment weather condition 1 to water replenishment weather condition K, where K is a positive integer less than or equal to N;

[0034] For any water replenishment weather condition K1, the test soil E1 with the standard test weight is sequentially placed in L environments in the water replenishment weather condition K1, which are sequentially recorded as simulated environment 1 to simulated environment L; the test soil E1 in simulated environment 1 to simulated environment L is irrigated, and the irrigation water volume is Q×single irrigation water volume, where Q is the number of the simulated environment;

[0035] Obtain the field water holding capacity of the test soil E1 in all simulated environments after the standard growth time, and record them as irrigation water holding capacity 1 to irrigation water holding capacity L in sequence;

[0036] Establish a plane rectangular coordinate system, recorded as the interval selection coordinate system, where the unit of the X-axis of the interval selection coordinate system is the number of the simulation environment, the unit of the Y-axis of the interval selection coordinate system is the field water holding capacity, and the coordinate points to the right of the origin of the X-axis of the interval selection coordinate system are filled in 1 to L in sequence and extended to the right;

[0037] Based on the irrigation water holding capacity corresponding to the simulated environment 1 to the simulated environment L, the coordinate system is marked in the interval selection, and the marked points are sequentially recorded as irrigation point 1 to irrigation point L, and the fitting function of irrigation point 1 to irrigation point L is obtained, which is recorded as the irrigation fitting function, wherein the irrigation fitting function is a binary linear function;

[0038] In the interval, select the point whose Y-axis coordinate is the standard water holding percentage C1 in the coordinate system to draw a straight line parallel to the X-axis, which is recorded as the standard measurement line. The intersection of the standard measurement line and the irrigation fitting function is recorded as the water replenishment interval point. The irrigation point closest to the water replenishment interval point is recorded as the upper limit of water replenishment, and the irrigation point closest to the water replenishment interval point is recorded as the lower limit of water replenishment.

[0039] The water volume of the test soil E1 irrigated in the simulated environment corresponding to the upper limit of water replenishment is recorded as the upper limit of water volume; the water volume of the test soil E1 irrigated in the simulated environment corresponding to the lower limit of water replenishment is recorded as the lower limit of water volume;

[0040] When there is no irrigation point above the water replenishment interval point, the water replenishment interval point is recorded as the water replenishment upper limit point, the horizontal coordinate of the water replenishment upper limit point is obtained, the coordinate point closest to the right of the horizontal coordinate of the water replenishment upper limit point is recorded as the upper limit reference coordinate point, the number corresponding to the upper limit reference coordinate point is obtained, recorded as LX, and the value of LX×single irrigation water volume is recorded as the upper limit water volume;

[0041] The closed interval formed by the upper and lower water limits is recorded as the water replenishment interval of the water replenishment weather condition K1, and the water volume in the water replenishment interval is proportionally amplified based on the standard test weight and the actual soil weight of the main irrigation area M1;

[0042] Get the water replenishment intervals for all water replenishment weather conditions.

[0043] Further, irrigating the irrigation area based on the water replenishment interval of each irrigation main area includes:

[0044] When irrigation is carried out on the irrigated crops in the irrigation area, the weather conditions during the irrigation are obtained and recorded as the real-time weather conditions;

[0045] For any main irrigation area M1 in the irrigation area, when the real-time weather condition is that water replenishment is not required for the main irrigation area M1, there is no need to irrigate the main irrigation area M1;

[0046] When the real-time weather condition is special water replenishment weather for the main irrigation area M1, the main irrigation area M1 is irrigated based on the water replenishment interval of the special water replenishment weather, so that the total irrigation water volume is within the water replenishment interval.

[0047] In the second aspect, the present invention also proposes an agricultural water-saving irrigation system based on the Internet of Things, including an irrigation classification module, an initial threshold acquisition module, a water replenishment analysis module and an irrigation module:

[0048] The irrigation division module is used to record the area that needs to be irrigated as an irrigation area, divide the irrigation area, and record it as irrigation main area 1 to irrigation main area M;

[0049] The initial threshold value acquisition module is used to analyze the soil and crops in the main irrigation area using the irrigation parameter extraction method, and set the initial irrigation threshold value based on the analysis results;

[0050] The water replenishment analysis module is used to sample the main irrigation area, and based on the sampling results, the weather simulation method is used to process and obtain the water replenishment interval of each main irrigation area based on the Internet of Things technology;

[0051] The irrigation module is used to irrigate the irrigation area based on the irrigation initial threshold and water replenishment interval of each irrigation main area.

[0052] In a third aspect, the present invention provides a storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps in the above method are performed.

[0053] In a fourth aspect, the present invention provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the above method are performed.

[0054] Beneficial effects of the present invention: The present invention divides the irrigation area by recording the area that needs to be irrigated as the irrigation area, and records it as the main irrigation area 1 to the main irrigation area M, and then uses the irrigation parameter extraction method to analyze the soil and crops in the main irrigation area, and sets the irrigation initial threshold value based on the analysis result. The advantage of this is that by analyzing the soil and crops and setting the irrigation initial threshold value based on the analysis result, it can lay a foundation for subsequent analysis. The irrigation initial threshold value is the most basic amount of water for the normal growth of crops. Therefore, in the subsequent analysis, the water consumption under different weather conditions can be adjusted according to the irrigation initial threshold value, so that in actual application, the irrigation water consumption can be adjusted according to weather changes, so that the irrigation water consumption can meet the basic water demand of crops in a very economical situation;

[0055] The present invention also samples the main irrigation area, processes the sampling results based on the Internet of Things technology using a weather simulation method to obtain the water replenishment interval of each main irrigation area, and finally irrigates the irrigation area based on the water replenishment interval of each main irrigation area. The advantage of this is that by obtaining the water replenishment interval using a weather simulation method based on the Internet of Things technology, the water consumption of each main irrigation area under actual different weather conditions can be effectively obtained, thereby strictly controlling the water consumption while meeting the water-saving requirements according to the existing technology, preventing the occurrence of drought in crops in the field due to excessive water-saving or waterlogging in crops in the field due to excessive rain, thereby ensuring the normal growth of crops and the rational use of soil.

[0056] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is a functional block diagram of the system of the present invention;

[0058] Figure 2 is a flow chart of the steps of the method of the present invention;

[0059] Figure 3 A schematic diagram of a coordinate system selected for an interval of the present invention;

[0060] Figure 4 It is a schematic diagram of obtaining the upper limit reference coordinate point of the present invention. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] Example 1, please refer to Figure 1 As shown, in the first aspect, the present application provides an agricultural water-saving irrigation system based on the Internet of Things, including an irrigation differentiation module, an initial threshold acquisition module, a water replenishment analysis module and an irrigation module:

[0063] The irrigation division module is used to record the area that needs to be irrigated as an irrigation area, divide the irrigation area, and record it as irrigation main area 1 to irrigation main area M;

[0064] The irrigation area division module is configured with a main area division strategy, which includes:

[0065] Obtain all types of crops that need to be irrigated in the irrigation area, and record them as irrigated crop 1 to irrigated crop A in sequence;

[0066] For any irrigated crop A1 from irrigated crop 1 to irrigated crop A, the area that needs to be sprayed when irrigating irrigated crop A1 is recorded as the main irrigation area M1;

[0067] Obtain the main irrigation areas of all irrigated crops and record them as irrigation main area 1 to irrigation main area M in sequence;

[0068] In the specific implementation process, by dividing the main irrigation area, various different crops in the irrigation area can be treated differently, so that the irrigation water volume can be set separately during irrigation to meet the different water needs of different crops, making the entire irrigation process more water-saving and effective;

[0069] The initial threshold value acquisition module is used to analyze the soil and crops in the main irrigation area using the irrigation parameter extraction method, and set the initial irrigation threshold value based on the analysis results;

[0070] The initial threshold value acquisition module is configured with an irrigation initial threshold value acquisition strategy, and the irrigation initial threshold value acquisition strategy includes:

[0071] Acquire soil and crops in all major irrigated areas;

[0072] All irrigation main areas were analyzed using irrigation parameter extraction method;

[0073] Irrigation parameter extraction methods include:

[0074] For any irrigation main area M1 from irrigation main area 1 to irrigation main area M;

[0075] Obtain the field water holding capacity required by the irrigated crop A1 planted in the main irrigation area M1 during normal growth, recorded as the standard water holding percentage C1;

[0076] In the specific implementation process, the field water holding capacity required by crops for normal growth is usually 60% to 80%. In this embodiment, it is detected that the field water holding capacity required by the irrigated crop A1 in the main irrigation area M1 for normal growth is 75%, so the standard water holding percentage C1 is set to 75%;

[0077] Obtain the field water holding capacity of the soil in the main irrigation area M1 without irrigation, recorded as the conventional water holding percentage D1;

[0078] In the specific implementation process, different soils have different field water holding capacity without contact with rainwater and artificial irrigation. Therefore, in actual analysis, the conventional water holding percentage should be set based on the actual situation of the soil. In this embodiment, the field water holding capacity of the soil in the main irrigation area M1 without contact with rainwater and artificial irrigation is 25%, so the conventional water holding percentage D1 is set to 25%;

[0079] Obtain historical irrigation data for the main irrigation area M1, and obtain the amount of water required to increase the field water holding capacity of the soil in the main irrigation area M1 from the conventional water holding percentage D1 to the standard water holding percentage C1 from the historical irrigation data, and record it as the initial irrigation threshold value of the main irrigation area M1;

[0080] In the specific implementation process, in this embodiment, by analyzing the soil in the main irrigation area M1, the amount of water required to increase the field water holding capacity of the soil in the main irrigation area M1 from 25% to 75% is 20 liters, so the initial irrigation threshold of the main irrigation area M1 is set to 20 liters;

[0081] Based on the analysis results, the initial irrigation thresholds of all main irrigation areas are obtained and recorded as irrigation threshold 1 to irrigation threshold B in sequence.

[0082] The water replenishment analysis module is used to sample the main irrigation area, and based on the sampling results, the weather simulation method is used to process and obtain the water replenishment interval of each main irrigation area based on the Internet of Things technology;

[0083] The water replenishment analysis module is equipped with a water replenishment interval extraction strategy, which includes:

[0084] For any irrigation main area M1 from irrigation main area 1 to irrigation main area M;

[0085] The soil of the main irrigation area M1 and the irrigated crop A1 are sampled, and the soil of the main irrigation area M1 is recorded as the test soil E1, wherein the soil whose field water holding capacity is the conventional water holding percentage is sampled during sampling;

[0086] In the specific implementation process, the purpose of sampling soils with field water holding capacity of conventional water holding percentage is to prevent the field water holding capacity of the soil at the time of sampling from being different from the field water holding capacity of the soil in actual conditions, which may lead to deviations in the subsequent water replenishment interval and cause errors in the analysis results;

[0087] Weather simulation methods include:

[0088] Obtain all weather conditions that may occur in the irrigation area and record them as weather condition 1 to weather condition N in sequence;

[0089] In the specific implementation process, the weather conditions may include sunny, cloudy, light rain, moderate rain, heavy rain and light snow. Since the humidity in the air of each weather is different, each weather needs to be analyzed separately;

[0090] The atmospheric humidity in the irrigation area under all weather conditions is obtained in sequence using the Internet and recorded as weather humidity 1 to weather humidity O in sequence;

[0091] The test soil E1 is placed in an environment with a weather humidity of 1 to a weather humidity of 0 in sequence and the field water holding capacity of the test soil is obtained after a standard growth time, and is recorded as weather water holding percentage 1 to weather water holding percentage P in sequence, wherein the standard growth time is the time required for the irrigated crop A1 in the main irrigation area M1 to be killed by drought;

[0092] The weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are greater than or equal to the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather without water replenishment; the weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are less than the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather with special water replenishment requirements.

[0093] In the specific implementation process, when the weather water holding percentage of a weather condition is greater than or equal to the standard water holding percentage C1 of the irrigated crop A1, it means that the irrigated crop A1 can grow normally under this weather condition, so there is no need to irrigate the main irrigation area M1, and the weather condition is recorded as weather without water replenishment;

[0094] When the weather water holding percentage of a weather condition is less than the standard water holding percentage C1 of the irrigated crop A1, it means that the irrigated crop A1 cannot grow completely under this weather condition, so manual intervention is required for irrigation, and this weather condition is recorded as special water replenishment weather, where no water replenishment weather is required for the main irrigation area under this weather condition, and special water replenishment weather is required for the main irrigation area under this weather condition;

[0095] Weather simulation methods also include:

[0096] The value of the irrigation threshold B1 divided by L is recorded as the single irrigation water volume;

[0097] The weather conditions corresponding to all special water replenishment weather conditions are recorded as water replenishment weather condition 1 to water replenishment weather condition K, where K is a positive integer less than or equal to N;

[0098] For any water replenishment weather condition K1, the test soil E1 with the standard test weight is sequentially placed in L environments in the water replenishment weather condition K1, which are sequentially recorded as simulated environment 1 to simulated environment L; the test soil E1 in simulated environment 1 to simulated environment L is irrigated, and the irrigation water volume is Q×single irrigation water volume, where Q is the number of the simulated environment;

[0099] In the specific implementation process, the irrigation threshold B1 is detected to be 20 liters in one test. The value of L can be determined according to the specific number of experiments that can be performed. In this embodiment, L is set to 4, and the single irrigation water volume is 5L. The value range of Q is 1 to 5. The irrigation water volume in simulation environment 1 to simulation environment 5 is 1×5L, 2×5L, 3×5L, 4×5L and 5×5L respectively;

[0100] Obtain the field water holding capacity of the test soil E1 in all simulated environments after the standard growth time, and record them as irrigation water holding capacity 1 to irrigation water holding capacity L in sequence;

[0101] Establish a plane rectangular coordinate system, recorded as the interval selection coordinate system, where the unit of the X-axis of the interval selection coordinate system is the number of the simulation environment, the unit of the Y-axis of the interval selection coordinate system is the field water holding capacity, and the coordinate points to the right of the origin of the X-axis of the interval selection coordinate system are filled in 1 to L in sequence and extended to the right;

[0102] Based on the irrigation water holding capacity corresponding to the simulated environment 1 to the simulated environment L, the coordinate system is marked in the interval selection, and the marked points are sequentially recorded as irrigation point 1 to irrigation point L, and the fitting function of irrigation point 1 to irrigation point L is obtained, which is recorded as the irrigation fitting function, wherein the irrigation fitting function is a binary linear function;

[0103] In the interval, select the point whose Y-axis coordinate is the standard water holding percentage C1 in the coordinate system to draw a straight line parallel to the X-axis, which is recorded as the standard measurement line. The intersection of the standard measurement line and the irrigation fitting function is recorded as the water replenishment interval point. The irrigation point closest to the water replenishment interval point is recorded as the upper limit of water replenishment, and the irrigation point closest to the water replenishment interval point is recorded as the lower limit of water replenishment.

[0104] See also Figure 3 As shown in the figure, in one test, the value of L is 8, the standard water holding percentage is 75%, RR1 to RR8 are irrigation points, EE1 is the irrigation fitting function, EE2 is the standard measurement line, and DD1 is the water replenishment interval point. Figure 3 In the above, RR8 is recorded as the upper limit of water replenishment, and RR7 is recorded as the lower limit of water replenishment;

[0105] The water volume of the test soil E1 irrigated in the simulated environment corresponding to the upper limit of water replenishment is recorded as the upper limit of water volume; the water volume of the test soil E1 irrigated in the simulated environment corresponding to the lower limit of water replenishment is recorded as the lower limit of water volume;

[0106] See also Figure 4 As shown in the figure, in one test, the value of L is 8, the single irrigation water volume is 3 liters, the standard water holding percentage is 75%, TT1 to TT8 are irrigation points, QQ1 is the irrigation fitting function, QQ2 is the standard measurement line, WW1 is the water replenishment interval point, and Figure 4 There is no irrigation point above the middle water replenishment interval point, so through analysis, it can be obtained that Figure 4 The upper limit reference coordinate point in is 10, that is, Figure 4 For WW2, the upper limit of water volume is 30 liters, the lower limit of water replenishment is TT8, and the lower limit of water volume is 24 liters;

[0107] When there is no irrigation point above the water replenishment interval point, the water replenishment interval point is recorded as the water replenishment upper limit point, the horizontal coordinate of the water replenishment upper limit point is obtained, the coordinate point closest to the right of the horizontal coordinate of the water replenishment upper limit point is recorded as the upper limit reference coordinate point, the number corresponding to the upper limit reference coordinate point is obtained, recorded as LX, and the value of LX×single irrigation water volume is recorded as the upper limit water volume;

[0108] In the specific implementation process, in a test, the single irrigation water volume is 2 liters, the value of L is 10, and irrigation points 1 to 10 are all below the water replenishment interval point. The horizontal coordinate corresponding to the water replenishment interval point is 15.5. Then, through analysis, it can be obtained that the upper limit reference coordinate point is 16, so LX is 16, and 16×2 liters = 32 liters is used as the upper limit water volume;

[0109] In the specific implementation process, when there is no irrigation point above the water replenishment interval point, it means that even if all the water corresponding to the irrigation threshold is used to irrigate the main irrigation area, the field water holding capacity of the soil in the main irrigation area cannot meet the normal growth of irrigated crops. Therefore, the water replenishment interval point obtained based on the irrigation fitting function is needed as a reference to obtain the upper limit water volume;

[0110] The closed interval formed by the upper and lower water limits is recorded as the water replenishment interval of the water replenishment weather condition K1, and the water volume in the water replenishment interval is proportionally amplified based on the standard test weight and the actual soil weight of the main irrigation area M1;

[0111] Get the water replenishment intervals for all water replenishment weather conditions.

[0112] The irrigation module is used to irrigate the irrigation area based on the irrigation initial threshold and water replenishment interval of each irrigation main area;

[0113] The irrigation module is configured with real-time irrigation strategies, which include:

[0114] When irrigation is carried out on the irrigated crops in the irrigation area, the weather conditions during the irrigation are obtained and recorded as the real-time weather conditions;

[0115] For any main irrigation area M1 in the irrigation area, when the real-time weather condition is that water replenishment is not required for the main irrigation area M1, there is no need to irrigate the main irrigation area M1;

[0116] When the real-time weather condition is the special water replenishment weather for the irrigation main area M1, the irrigation main area M1 is irrigated based on the water replenishment interval of the special water replenishment weather, so that the total amount of irrigation water is within the water replenishment interval;

[0117] During the specific implementation process, in one detection, it was detected that the real-time weather condition was sunny, and sunny is the special water replenishment weather for the main irrigation area M1. When the water replenishment weather condition in the main irrigation area M1 is sunny, the water replenishment range is 25 liters to 30 liters. In this case, irrigation equipment is needed to irrigate the main irrigation area M1, and the irrigation water consumption is between 25 liters and 30 liters.

[0118] Example 2, please refer to Figure 2 As shown, in the second aspect, the present invention provides an agricultural water-saving irrigation method based on the Internet of Things, comprising:

[0119] Step S1, recording the area to be irrigated as an irrigation area, dividing the irrigation area, and recording them as irrigation main area 1 to irrigation main area M;

[0120] Step S1 includes: Step S101, obtaining all types of crops that need to be irrigated in the irrigation area, which are sequentially recorded as irrigated crop 1 to irrigated crop A;

[0121] Step S102, for any irrigated crop A1 from irrigated crop 1 to irrigated crop A, the area where water needs to be sprayed when irrigating the irrigated crop A1 is recorded as the main irrigation area M1;

[0122] Step S103, obtaining the main irrigation areas of all irrigated crops, and recording them as main irrigation area 1 to main irrigation area M in sequence.

[0123] Step S2, using the irrigation parameter extraction method to analyze the soil and crops in the main irrigation area, and setting the initial irrigation threshold value based on the analysis results;

[0124] Step S2 includes: Step S201, obtaining soil and crops in all main irrigation areas;

[0125] Step S202, analyzing all main irrigation areas using an irrigation parameter extraction method;

[0126] Step S203: based on the analysis result, the initial irrigation thresholds of all the main irrigation areas are obtained and recorded as irrigation threshold 1 to irrigation threshold B in sequence.

[0127] The irrigation parameter extraction method includes: step S2011, for any one of the irrigation main areas M1 from the irrigation main area 1 to the irrigation main area M;

[0128] Step S2012, obtaining the field water holding capacity required by the irrigated crop A1 planted in the main irrigation area M1 during normal growth, recorded as the standard water holding percentage C1;

[0129] Step S2013, obtaining the field water holding capacity of the soil in the main irrigation area M1 without irrigation, recorded as the conventional water holding percentage D1;

[0130] Step S2014, obtaining historical irrigation data for the main irrigation area M1, and obtaining the amount of water required to increase the field water holding capacity of the soil in the main irrigation area M1 from the conventional water holding percentage D1 to the standard water holding percentage C1 from the historical irrigation data, which is recorded as the initial irrigation threshold of the main irrigation area M1.

[0131] Step S3, sampling the main irrigation area, and processing the sampling results using a weather simulation method based on the Internet of Things technology to obtain the water replenishment interval of each main irrigation area;

[0132] Step S3 includes: step S301, for any one of the irrigation main areas 1 to the irrigation main areas M1;

[0133] Step S302, sampling the soil in the main irrigation area M1 and the irrigated crop A1, and recording the soil in the main irrigation area M1 as the test soil E1, wherein during sampling, the soil whose field water holding capacity is the conventional water holding percentage is sampled;

[0134] The weather simulation method includes: step S3021, obtaining all weather conditions that may occur in the irrigation area, and recording them in sequence as weather condition 1 to weather condition N;

[0135] The atmospheric humidity in the irrigation area under all weather conditions is obtained in sequence using the Internet and recorded as weather humidity 1 to weather humidity O in sequence;

[0136] Step S3022, placing the test soil E1 in an environment with a weather humidity of 1 to a weather humidity of 0 in sequence and obtaining the field water holding capacity of the test soil after a standard growth time, and recording them as weather water holding percentage 1 to weather water holding percentage P in sequence, wherein the standard growth time is the time required for the irrigated crop A1 in the main irrigation area M1 to be killed by drought;

[0137] Step S3023, record the weather conditions corresponding to the weather water holding percentages from the weather water holding percentages 1 to the weather water holding percentages P that are greater than or equal to the standard water holding percentage C1 of the irrigated crop A1 as weather without water replenishment; record the weather conditions corresponding to the weather water holding percentages from the weather water holding percentages 1 to the weather water holding percentages P that are less than the standard water holding percentage C1 of the irrigated crop A1 as weather with special water replenishment needs;

[0138] Step S3024, the value obtained by dividing the irrigation threshold B1 by L is recorded as the single irrigation water volume;

[0139] The weather conditions corresponding to all special water replenishment weather conditions are recorded as water replenishment weather condition 1 to water replenishment weather condition K, where K is a positive integer less than or equal to N;

[0140] For any water replenishment weather condition K1, the test soil E1 with the standard test weight is sequentially placed in L environments in the water replenishment weather condition K1, which are sequentially recorded as simulated environment 1 to simulated environment L; the test soil E1 in simulated environment 1 to simulated environment L is irrigated, and the irrigation water volume is Q×single irrigation water volume, where Q is the number of the simulated environment;

[0141] Step S3025, obtaining the field water holding capacity of the test soil E1 in all simulated environments after the standard growth time, and recording them in sequence as irrigation water holding capacity 1 to irrigation water holding capacity L;

[0142] Establish a plane rectangular coordinate system, recorded as the interval selection coordinate system, where the unit of the X-axis of the interval selection coordinate system is the number of the simulation environment, the unit of the Y-axis of the interval selection coordinate system is the field water holding capacity, and the coordinate points to the right of the origin of the X-axis of the interval selection coordinate system are filled in 1 to L in sequence and extended to the right;

[0143] Based on the irrigation water holding capacity corresponding to the simulated environment 1 to the simulated environment L, the coordinate system is marked in the interval selection, and the marked points are sequentially recorded as irrigation point 1 to irrigation point L, and the fitting function of irrigation point 1 to irrigation point L is obtained, which is recorded as the irrigation fitting function, wherein the irrigation fitting function is a binary linear function;

[0144] Step S3026, in the interval, select a point whose Y-axis coordinate in the coordinate system is the standard water holding percentage C1 and draw a straight line parallel to the X-axis, record it as the standard measurement line, record the intersection of the standard measurement line and the irrigation fitting function as the water replenishment interval point, record the irrigation point above the water replenishment interval point as the water replenishment upper limit point, and record the irrigation point below the water replenishment interval point as the water replenishment lower limit point;

[0145] Step S3027, the water volume of the test soil E1 irrigated in the simulated environment corresponding to the upper limit of water replenishment is recorded as the upper limit of water volume; the water volume of the test soil E1 irrigated in the simulated environment corresponding to the lower limit of water replenishment is recorded as the lower limit of water volume;

[0146] When there is no irrigation point above the water replenishment interval point, the water replenishment interval point is recorded as the water replenishment upper limit point, the horizontal coordinate of the water replenishment upper limit point is obtained, the coordinate point closest to the right of the horizontal coordinate of the water replenishment upper limit point is recorded as the upper limit reference coordinate point, the number corresponding to the upper limit reference coordinate point is obtained, recorded as LX, and the value of LX×single irrigation water volume is recorded as the upper limit water volume;

[0147] Step S3028, record the closed interval formed by the upper water limit and the lower water limit as the water replenishment interval of the water replenishment weather condition K1, and proportionally amplify the water volume in the water replenishment interval based on the standard test weight and the actual soil weight of the main irrigation area M1;

[0148] Step S3029, obtaining the water replenishment intervals for all water replenishment weather conditions.

[0149] Step S4, irrigating the irrigation area based on the water replenishment interval of each main irrigation area.

[0150] Step S4 includes: Step S401, when irrigating crops in the irrigated area, obtaining weather conditions during the irrigation, which are recorded as real-time weather conditions;

[0151] Step S402: for any one main irrigation area M1 in the irrigation area, when the real-time weather condition is that water replenishment is not required for the main irrigation area M1, there is no need to irrigate the main irrigation area M1;

[0152] Step S403, when the real-time weather condition is special water replenishment weather for the main irrigation area M1, the main irrigation area M1 is irrigated based on the water replenishment interval of the special water replenishment weather, so that the total irrigation water volume is within the water replenishment interval.

[0153] Embodiment 3, in the third aspect, the present application provides an electronic device, including a processor and a memory, the memory storing computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the above method are executed. Through the above technical solution, the processor and the memory are interconnected and communicate with each other through a communication bus and / or other forms of connection mechanisms, and the memory stores a computer program executable by the processor. When the electronic device is running, the processor executes the computer program to execute the method in any optional implementation of the above embodiment to achieve the following functions: first, the area that needs to be irrigated is recorded as an irrigation area, and the irrigation area is divided, and then the irrigation parameter extraction method is used to analyze the soil and crops in the main irrigation area, and the initial irrigation threshold is set based on the analysis results. In addition, the main irrigation area is sampled, and the sampling results are processed based on the Internet of Things technology using a weather simulation method and the water replenishment interval of each main irrigation area is obtained, and finally the irrigation area is irrigated based on the water replenishment interval of each main irrigation area.

[0154] Embodiment 4, in a fourth aspect, the present application provides a storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in the above method are executed. Through the above technical solution, when the computer program is executed by the processor, the method in any optional implementation of the above embodiment is executed to achieve the following functions: first, the area to be irrigated is recorded as an irrigation area, and the irrigation area is divided, and then the soil and crops in the main irrigation area are analyzed using the irrigation parameter extraction method, and the initial irrigation threshold is set based on the analysis results. In addition, the main irrigation area is sampled, and based on the sampling results, the weather simulation method is used based on the Internet of Things technology to process and obtain the water replenishment interval of each main irrigation area, and finally the irrigation area is irrigated based on the water replenishment interval of each main irrigation area.

[0155] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0156] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program codes. Among them, the storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read Only Memory, referred to as EPROM), programmable read-only memory (Programmable Red-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0157] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

Claims

1. An agricultural water-saving irrigation method based on the Internet of Things, characterized in that: include: The area that needs to be irrigated is recorded as an irrigation area, and the irrigation area is divided and recorded as irrigation main area 1 to irrigation main area M; Use irrigation parameter extraction method to analyze soil and crops in the main irrigation area, and set the initial irrigation threshold based on the analysis results; Sampling the main irrigation area, and using the weather simulation method based on the Internet of Things technology to process the sampling results and obtain the water replenishment interval of each main irrigation area; Irrigating the irrigation area based on the water replenishment interval of each main irrigation area; The area that needs to be irrigated is recorded as an irrigation area, and the irrigation area is divided and recorded as irrigation main area 1 to irrigation main area M including: Obtain all types of crops that need to be irrigated in the irrigation area, and record them as irrigated crop 1 to irrigated crop A in sequence; For any irrigated crop A1 from irrigated crop 1 to irrigated crop A, the area that needs to be sprayed when irrigating irrigated crop A1 is recorded as the main irrigation area M1; Obtain the main irrigation areas of all irrigated crops and record them as irrigation main area 1 to irrigation main area M in sequence; The irrigation parameter extraction method is used to analyze the soil and crops in the main irrigation area. The initial irrigation threshold is set based on the analysis results, including: Acquire soil and crops in all major irrigated areas; All irrigation main areas were analyzed using irrigation parameter extraction method; Based on the analysis results, the initial irrigation thresholds of all main irrigation areas are obtained and recorded as irrigation threshold 1 to irrigation threshold B in sequence; Irrigation parameter extraction methods include: For any irrigation main area M1 from irrigation main area 1 to irrigation main area M; Obtain the field water holding capacity required by the irrigated crop A1 planted in the main irrigation area M1 during normal growth, recorded as the standard water holding percentage C1; Obtain the field water holding capacity of the soil in the main irrigation area M1 without irrigation, recorded as the conventional water holding percentage D1; Obtain historical irrigation data for the main irrigation area M1, and obtain the amount of water required to increase the field water holding capacity of the soil in the main irrigation area M1 from the conventional water holding percentage D1 to the standard water holding percentage C1 from the historical irrigation data, and record it as the initial irrigation threshold value of the main irrigation area M1; Sampling is carried out in the main irrigation area, and the sampling results are processed using the weather simulation method based on the Internet of Things technology to obtain the water replenishment intervals for each main irrigation area, including: For any irrigation main area M1 from irrigation main area 1 to irrigation main area M; The soil of the main irrigation area M1 and the irrigated crop A1 are sampled, and the soil of the main irrigation area M1 is recorded as the test soil E1, wherein the soil whose field water holding capacity is the conventional water holding percentage is sampled during sampling; Weather simulation methods include: Obtain all weather conditions that may occur in the irrigation area and record them as weather condition 1 to weather condition N in sequence; The atmospheric humidity in the irrigation area under all weather conditions is obtained in sequence using the Internet and recorded as weather humidity 1 to weather humidity O in sequence; The test soil E1 is placed in an environment with a weather humidity of 1 to a weather humidity of 0 in sequence and the field water holding capacity of the test soil is obtained after a standard growth time, and is recorded as weather water holding percentage 1 to weather water holding percentage P in sequence, wherein the standard growth time is the time required for the irrigated crop A1 in the main irrigation area M1 to be killed by drought; The weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are greater than or equal to the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather without water replenishment; the weather conditions corresponding to the weather water holding percentages from the weather water holding percentage 1 to the weather water holding percentage P that are less than the standard water holding percentage C1 of the irrigated crop A1 are recorded as weather with special water replenishment requirements.

2. The agricultural water-saving irrigation method based on the Internet of Things according to claim 1 is characterized in that: Weather simulation methods also include: The value of the irrigation threshold B1 divided by L is recorded as the single irrigation water volume; The weather conditions corresponding to all special water replenishment weather conditions are recorded as water replenishment weather condition 1 to water replenishment weather condition K, where K is a positive integer less than or equal to N; For any water replenishment weather condition K1, the test soil E1 with the standard test weight is sequentially placed in L environments in the water replenishment weather condition K1, which are sequentially recorded as simulated environment 1 to simulated environment L; the test soil E1 in simulated environment 1 to simulated environment L is irrigated, and the irrigation water volume is Q×single irrigation water volume, where Q is the number of the simulated environment; Obtain the field water holding capacity of the test soil E1 in all simulated environments after the standard growth time, and record them as irrigation water holding capacity 1 to irrigation water holding capacity L in sequence; Establish a plane rectangular coordinate system, recorded as the interval selection coordinate system, where the unit of the X-axis of the interval selection coordinate system is the number of the simulation environment, the unit of the Y-axis of the interval selection coordinate system is the field water holding capacity, and the coordinate points to the right of the origin of the X-axis of the interval selection coordinate system are filled in 1 to L in sequence and extended to the right; Based on the irrigation water holding capacity corresponding to the simulated environment 1 to the simulated environment L, the coordinate system is marked in the interval selection, and the marked points are sequentially recorded as irrigation point 1 to irrigation point L, and the fitting function of irrigation point 1 to irrigation point L is obtained, which is recorded as the irrigation fitting function, wherein the irrigation fitting function is a binary linear function; In the interval, select the point whose Y-axis coordinate is the standard water holding percentage C1 in the coordinate system to draw a straight line parallel to the X-axis, which is recorded as the standard measurement line. The intersection of the standard measurement line and the irrigation fitting function is recorded as the water replenishment interval point. The irrigation point closest to the water replenishment interval point is recorded as the upper limit of water replenishment, and the irrigation point closest to the water replenishment interval point is recorded as the lower limit of water replenishment. The water volume of the test soil E1 irrigated in the simulated environment corresponding to the upper limit of water replenishment is recorded as the upper limit of water volume; the water volume of the test soil E1 irrigated in the simulated environment corresponding to the lower limit of water replenishment is recorded as the lower limit of water volume; When there is no irrigation point above the water replenishment interval point, the water replenishment interval point is recorded as the water replenishment upper limit point, the horizontal coordinate of the water replenishment upper limit point is obtained, the coordinate point closest to the right of the horizontal coordinate of the water replenishment upper limit point is recorded as the upper limit reference coordinate point, the number corresponding to the upper limit reference coordinate point is obtained, recorded as LX, and the value of LX×single irrigation water volume is recorded as the upper limit water volume; The closed interval formed by the upper and lower water limits is recorded as the water replenishment interval of the water replenishment weather condition K1, and the water volume in the water replenishment interval is proportionally amplified based on the standard test weight and the actual soil weight of the main irrigation area M1; Get the water replenishment intervals for all water replenishment weather conditions.

3. The agricultural water-saving irrigation method based on the Internet of Things according to claim 2 is characterized in that: Irrigation of irrigation areas based on the water replenishment interval of each irrigation main area includes: When irrigation is carried out on the irrigated crops in the irrigation area, the weather conditions during the irrigation are obtained and recorded as the real-time weather conditions; For any main irrigation area M1 in the irrigation area, when the real-time weather condition is that water replenishment is not required for the main irrigation area M1, there is no need to irrigate the main irrigation area M1; When the real-time weather condition is special water replenishment weather for the main irrigation area M1, the main irrigation area M1 is irrigated based on the water replenishment interval of the special water replenishment weather, so that the total irrigation water volume is within the water replenishment interval.

4. An agricultural water-saving irrigation system based on the Internet of Things, implemented based on the agricultural water-saving irrigation method based on the Internet of Things according to any one of claims 1 to 3, characterized in that: It includes irrigation differentiation module, initial threshold acquisition module, water replenishment analysis module and irrigation module: The irrigation division module is used to record the area that needs to be irrigated as an irrigation area, divide the irrigation area, and record it as irrigation main area 1 to irrigation main area M; The initial threshold value acquisition module is used to analyze the soil and crops in the main irrigation area using the irrigation parameter extraction method, and set the initial irrigation threshold value based on the analysis results; The water replenishment analysis module is used to sample the main irrigation area, and based on the sampling results, the weather simulation method is used to process and obtain the water replenishment interval of each main irrigation area based on the Internet of Things technology; The irrigation module is used to irrigate the irrigation area based on the irrigation initial threshold and water replenishment interval of each irrigation main area.

5. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 3 are executed.

6. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 3 are performed.

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