An irrigation area water volume scheduling method, system and device based on multi-factor coordination

Abstract

The present invention relates to the technical field of scheduling management, and specifically discloses a water volume scheduling method, system and device for an irrigation area based on multi-factor coordination. The method includes: growth characteristic evaluation, predicted water resource loss, and determination of the scheduling status of the irrigation area. The crop growth monitoring component monitors the growth status of crops in each sub-irrigation area in real time, collects data, determines the growth characteristic evaluation value, matches the predicted water demand with the irrigation period, and uploads it to the water resource scheduling component of the irrigation area; the meteorological data monitoring component monitors the meteorological environment of each sub-irrigation area, collects real-time meteorological data during the predicted irrigation period, evaluates the influence value, matches the predicted water resource loss, and uploads it to the scheduling component; the water resource scheduling component of the irrigation area monitors the water resources of the irrigation area in real time, collects the water supply data of the water conveyance channel, comprehensively evaluates the scheduling quality index based on the predicted water demand of the crops and the predicted water resource loss, compares it with the reference index, determines the scheduling status, and gives feedback on the water volume scheduling.

Description

Technical Field

[0001] The present invention relates to the technical field of scheduling management, and particularly to a method, a system and a device for water volume scheduling in an irrigation area based on multi-factor coordination. Background Art

[0002] Resource management is a complex system involving multiple aspects and levels. Especially in an irrigation area, this complexity is particularly evident. As the basic unit of agricultural production management, the water volume scheduling in the irrigation area is not only related to the stability and efficiency of agricultural production, but also directly affects the sustainable utilization of water resources and the balance of the ecological environment. Therefore, water volume scheduling needs to comprehensively consider multiple objectives, including irrigation benefits, water resource utilization efficiency, ecological environment protection, etc.

[0003] For example, the invention patent with the publication number CN107808253B discloses a real-time water distribution method for irrigation area canal systems based on a coordination algorithm, including the steps of: 1) reporting a water demand plan according to the water demand of water users in the irrigation area; 2) establishing a real-time water distribution scheduling model when the total water volume in the irrigation area < the sum of the water demands of water users; 3) constructing a Hamiltonian function to find the optimal solution of the water volume allocated to each water user; 4) scheduling the flow rate and gate opening allocated to each water user according to the optimal solution.

[0004] For example, the invention patent with the publication number CN105868868B discloses a method for regulating and controlling the operation process and risk identification of a water network water resource system, characterized in that it provides irrigation water demand information for a regional multi-source optimal allocation model based on real-time perception information, and a real-time water distribution decision-making model determines the real-time water demand; a medium- and long-term runoff forecast model is used to predict the monthly runoff of the future basin in the basin; a downscaling climate model provides input for a short- and medium-term hydrological forecast model; a groundwater simulation and forecast model is used to regulate the groundwater level; a multi-source optimal scheduling model combining coupled forecasts combines all the above information to realize the joint scheduling of multiple water sources; the multi-source scheduling model provides the water distribution decision of the daily runoff, and the water volume is transported through a water resource transmission automatic control unit to achieve precise distribution.

[0005] Combined with the above technical solutions, it is found that there is a water resource scheduling scheme for the irrigation area, which directly conducts comprehensive water resource scheduling for the entire irrigation area. However, in fact, due to the diversity of water resource demands in each irrigation area and the existence of many influencing factors during the transportation process, the water resource scheduling efficiency in the irrigation area will be greatly reduced, and ultimately the water volume scheduling of the irrigation area cannot be coordinated. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method, a system and a device for water volume scheduling in an irrigation area based on multi-factor coordination, which can effectively solve the problems involved in the above background art.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: In the first aspect of the present invention, a method for water volume scheduling in an irrigation district based on multi-factor coordination is provided, including: Growth characteristic evaluation: The crop growth monitoring component monitors the growth status of the crops in each sub-irrigation district in real time, collects the growth data of the crops in each sub-irrigation district, determines the growth characteristic evaluation values of the crops in each sub-irrigation district, matches to obtain the estimated water requirements of the crops in each sub-irrigation district and the estimated irrigation periods of the crops in each sub-irrigation district, and uploads them to the irrigation district water resources scheduling component; Water resource estimated loss: The meteorological data monitoring component monitors the meteorological environment of each sub-irrigation district, collects the real-time meteorological characteristic data of each sub-irrigation district during the estimated irrigation periods of the crops in each sub-irrigation district, evaluates the meteorological characteristic influence values of each sub-irrigation district during the estimated irrigation periods, matches to obtain the water resource estimated loss amounts of each sub-irrigation district during the estimated irrigation periods, and uploads them to the irrigation district water resources scheduling component; Irrigation district scheduling status determination: The irrigation district water resources scheduling component monitors the water resources of the irrigation district in real time, collects the water supply data of each water conveyance channel in the irrigation district during the estimated irrigation periods of the crops in each sub-irrigation district, and comprehensively considers the estimated water requirements of the crops in each sub-irrigation district and the water resource estimated loss amounts of each sub-irrigation district during the estimated irrigation periods, evaluates the scheduling quality indicators of each water conveyance channel in the irrigation district during the estimated irrigation periods, compares them with the predefined reference scheduling quality indicators, thereby determining the scheduling status of each water conveyance channel in the irrigation district during the estimated irrigation periods, and providing feedback on the water volume scheduling in the irrigation district.

[0008] As a further method, the process of determining the growth characteristic evaluation value of the crops in each sub-irrigation area is as follows: The growth data of the crops in each sub-irrigation area specifically includes the plant height of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of the leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the corresponding area of each leaf of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, and the corresponding length of each root system of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point; Add up the corresponding areas of each leaf of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point to obtain the total leaf area of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point; Add up the corresponding lengths of each root system of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point to obtain the total root length of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point; Comprehensively analyze the plant height of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of the leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the total leaf area of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, and the total root length of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point to obtain the growth characteristic evaluation value of the crops in each sub-irrigation area.

[0009] As a further method, the process of matching to obtain the estimated water requirement of the crops in each sub-irrigation area and the estimated irrigation period of the crops in each sub-irrigation area is as follows: Match the growth characteristic evaluation value of the crops in each sub-irrigation area with the estimated water requirement corresponding to each predefined growth characteristic evaluation value interval, so as to match and obtain the estimated water requirement of the crops in each sub-irrigation area; Match the growth characteristic evaluation value of the crops in each sub-irrigation area with the estimated irrigation period corresponding to each predefined growth characteristic evaluation value interval, so as to match and obtain the estimated irrigation period of the crops in each sub-irrigation area.

[0010] As a further method, the process of evaluating the influence value of meteorological characteristics of each sub-irrigation area during the estimated irrigation period is as follows: The real-time meteorological characteristic data of each sub-irrigation area specifically includes the real-time sunshine intensity of each sub-irrigation area during the estimated irrigation period, the real-time ambient wind speed of each sub-irrigation area during the estimated irrigation period, the real-time ambient temperature of each sub-irrigation area during the estimated irrigation period, and the real-time water vapor evaporation amount of each sub-irrigation area during the estimated irrigation period; Match the total chlorophyll content of the leaves of each plant in each sub-irrigation area at the characteristic monitoring time point with the sunshine reference intensity corresponding to each predefined total chlorophyll content interval of the leaves, so as to obtain the sunshine reference intensity corresponding to each plant in each sub-irrigation area through this matching, and perform mean processing to obtain and record it as the mean sunshine reference intensity of each sub-irrigation area; Match the total root length of each plant in each sub-irrigation area at the characteristic monitoring time point with the ambient reference temperature corresponding to each predefined total root length interval, so as to obtain the ambient reference temperature mean value corresponding to each plant in each sub-irrigation area through this matching, and perform mean processing to obtain and record it as the ambient reference temperature mean value of each sub-irrigation area; Obtain the soil type of each sub-irrigation area, and match it with the soil characteristic influence coefficient corresponding to each predefined soil type, so as to obtain the soil characteristic influence coefficient of each sub-irrigation area; Comprehensively analyze the real-time sunshine intensity of each sub-irrigation area during the estimated irrigation period, the real-time ambient wind speed of each sub-irrigation area during the estimated irrigation period, the real-time ambient temperature of each sub-irrigation area during the estimated irrigation period, the real-time water vapor evaporation amount of each sub-irrigation area during the estimated irrigation period, and the soil characteristic influence coefficient of each sub-irrigation area to obtain the influence value of meteorological characteristics of each sub-irrigation area during the estimated irrigation period. The specific analysis method is as follows:

[0011]

[0012] In the formula, is the influence value of meteorological characteristics of the g-th sub-irrigation area during the estimated irrigation period, g is the number of each sub-irrigation area, , G is the total number of sub-irrigation areas, t is the time variable, , is the start time point of the estimated irrigation period, is the end time point of the estimated irrigation period, is the real-time sunshine intensity of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the mean sunshine reference intensity of the g-th sub-irrigation area, is the real-time ambient temperature of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the mean ambient reference temperature of the g-th sub-irrigation area, is the real-time ambient wind speed of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the real-time water vapor evaporation amount of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the soil characteristic influence coefficient for the g-th sub-irrigation area, is the meteorological characteristic parameter corresponding to the predefined real-time environmental wind speed in the irrigation area scheduling information database, is the meteorological characteristic parameter corresponding to the predefined real-time water vapor evaporation in the irrigation area scheduling information database, is the meteorological characteristic parameter corresponding to the predefined soil characteristic influence coefficient in the irrigation area scheduling information database, and e is the natural constant.

[0013] As a further method, the water resource estimated loss amount of each sub-irrigation area in the estimated irrigation period is obtained by matching. The specific matching process is as follows: match the meteorological characteristic influence values of each sub-irrigation area in the estimated irrigation period with the water resource estimated loss amounts corresponding to the predefined intervals of each meteorological characteristic influence value. The specific matching process is as follows: obtain the mapping set between the meteorological characteristic influence values and the water resource estimated loss amounts of each sub-irrigation area in the estimated irrigation period from the irrigation area scheduling information database, determine the interval to which the meteorological characteristic influence value of each sub-irrigation area in the estimated irrigation period belongs, and allocate the water resource estimated loss amount corresponding to this interval to each sub-irrigation area corresponding to the meteorological characteristic influence value, so as to obtain the water resource estimated loss amount of each sub-irrigation area in the estimated irrigation period by matching.

[0014] As a further method, the scheduling status of each water conveyance channel in the irrigation area in the estimated irrigation period is determined. The specific determination process is as follows: compare the scheduling quality index of each water conveyance channel in the irrigation area in the estimated irrigation period with the predefined reference indexes of each scheduling quality. If the scheduling quality index of a certain water conveyance channel in the irrigation area in the estimated irrigation period is greater than or equal to the reference index of this scheduling quality, it is determined that the scheduling status of this water conveyance channel in the irrigation area in the estimated irrigation period is the normal scheduling status. If there is a certain water conveyance channel in the irrigation area in the estimated irrigation period whose scheduling quality index is less than the reference index of this scheduling quality, it is determined that the scheduling status of this water conveyance channel in the irrigation area in the estimated irrigation period is the abnormal scheduling status, and feedback is given on the abnormal scheduling status.

[0015] In the second aspect of the present invention, a water volume scheduling system for irrigation areas based on multi-factor coordination is provided, including: a growth characteristic evaluation module, which is used for the crop growth monitoring component to monitor the growth status of the crops in each sub-irrigation area in real time, collect the growth data of the crops in each sub-irrigation area, determine the growth characteristic evaluation values of the crops in each sub-irrigation area, match and obtain the estimated water requirements of the crops in each sub-irrigation area and the estimated irrigation time periods of the crops in each sub-irrigation area, and upload them to the irrigation area water resource scheduling component; a water resource estimated loss module, which is used for the meteorological data monitoring component to monitor the meteorological environment of each sub-irrigation area, collect the real-time meteorological characteristic data of each sub-irrigation area under the estimated irrigation time periods of the crops in each sub-irrigation area, evaluate the meteorological characteristic influence values of each sub-irrigation area under the estimated irrigation time periods, match and obtain the estimated water resource losses of each sub-irrigation area under the estimated irrigation time periods, and upload them to the irrigation area water resource scheduling component; an irrigation area scheduling status determination module, which is used for the irrigation area water resource scheduling component to monitor the water resources of the irrigation area in real time, collect the water supply data of each water conveyance channel in the irrigation area under the estimated irrigation time periods of the crops in each sub-irrigation area, and comprehensively consider the estimated water requirements of the crops in each sub-irrigation area and the estimated water resource losses of each sub-irrigation area under the estimated irrigation time periods, evaluate the scheduling quality indexes of each water conveyance channel in the irrigation area under the estimated irrigation time periods, compare them with the predefined scheduling quality reference indexes, thereby determine the scheduling status of each water conveyance channel in the irrigation area under the estimated irrigation time periods, and provide feedback on the water volume scheduling of the irrigation area.

[0016] In the third aspect of the present invention, a water volume scheduling device for irrigation areas based on multi-factor coordination is provided, including: a crop growth monitoring component, a meteorological data monitoring component, and an irrigation area water resource scheduling component; the crop growth monitoring component is used to monitor the growth status of the crops in each sub-irrigation area in real time, and determine the growth characteristic evaluation values of the crops in each sub-irrigation area, and upload them to the irrigation area water resource scheduling component; the meteorological data monitoring component is used to monitor the meteorological environment of each sub-irrigation area, evaluate the meteorological characteristic influence values of each sub-irrigation area under the estimated irrigation time periods, and upload them to the irrigation area water resource scheduling component; the irrigation area water resource scheduling component is used to comprehensively consider the growth characteristic evaluation values of the crops in each sub-irrigation area and the meteorological characteristic influence values of each sub-irrigation area under the estimated irrigation time periods, determine the scheduling quality indexes of each water conveyance channel in the irrigation area under the estimated irrigation time periods, and finally provide feedback on the water volume scheduling of the irrigation area.

[0017] Compared with the prior art, the embodiments of the present invention have at least the following advantages or beneficial effects:

[0018] (1) The present invention provides a method, system and device for water volume scheduling in an irrigation area based on multi-factor coordination. The crop growth monitoring component monitors the growth status of crops in each sub-irrigation area in real time, collects data, determines the growth characteristic evaluation value, matches the estimated water demand and irrigation period, and uploads them to the irrigation area water resources scheduling component; the meteorological data monitoring component monitors the meteorological environment of each sub-irrigation area, collects real-time meteorological data during the estimated irrigation period, evaluates the influence value, matches the estimated water resource loss, and uploads them to the scheduling component; the irrigation area water resources scheduling component monitors the water resources in the irrigation area in real time, collects the water supply data of the water conveyance channel, comprehensively evaluates the scheduling quality index based on the estimated water demand of the crops and the estimated water resource loss, compares it with the reference index, determines the scheduling status, and gives feedback on the water volume scheduling, so as to achieve precise irrigation and efficient water use, and improve the utilization efficiency of water resources.

[0019] (2) By collecting the growth data of the crops in each sub-irrigation area and determining the growth characteristic evaluation value of the crops in each sub-irrigation area, the present invention can accurately determine the actual needs of the crops, so as to ensure that enough water is provided for the crops during the crop growth cycle to meet their growth needs. The determination of the estimated irrigation period can make the irrigation time more reasonable and improve the water absorption and utilization rate of the crops.

[0020] (3) By collecting the real-time meteorological characteristic data of each sub-irrigation area during the estimated irrigation period of the crops in each sub-irrigation area and evaluating the meteorological characteristic influence value of each sub-irrigation area during the estimated irrigation period, the present invention can more accurately determine the irrigation water volume under different meteorological conditions, which helps to select the best irrigation time; considering the water resource loss caused by meteorological factors can effectively avoid over-irrigation or under-irrigation caused by changes in meteorological conditions and enhance the ability of the water volume scheduling system in the irrigation area to cope with climate change.

[0021] (4) By monitoring the water supply data in real time and combining the estimated water demand of the crops, the present invention can ensure that the crops in each sub-irrigation area receive appropriate water volume during the estimated irrigation period. Considering the estimated water resource loss can make up for the reduced water volume due to loss in advance, maintain a good irrigation effect, and evaluating the scheduling quality index can timely detect problems occurring in the water supply process of the water conveyance channel, ensure the normal progress of the irrigation scheduling work, and improve the scheduling management level. Description of the Drawings

[0022] The present invention is further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the following drawings without creative efforts.

[0023] Figure 1 It is a schematic flow chart of the method steps of the present invention.

[0024] Figure 2Schematic diagram of system module connection for the present invention. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Refer to Figure 1 As shown, a water volume scheduling method for irrigation areas based on multi-factor coordination is provided in the first aspect of the present invention, including: Growth characteristic evaluation: The crop growth monitoring component monitors the growth status of the crops in each sub-irrigation area in real time, collects the growth data of the crops in each sub-irrigation area, determines the growth characteristic evaluation values of the crops in each sub-irrigation area, matches the estimated water requirements of the crops in each sub-irrigation area and the estimated irrigation time periods of the crops in each sub-irrigation area, and uploads them to the irrigation area water resource scheduling component.

[0027] The above-mentioned crop growth monitoring component includes a chlorophyll fluorescence sensor that can measure the chlorophyll fluorescence characteristics of crops; a UAV monitoring sensor that can obtain image information of crops, such as the plant height, number of leaves, planting density, etc. of crops. The crop growth monitoring component also has an image analysis function that can process and analyze the collected images, and automatically calculate parameters such as the coverage and leaf area of crops. The crop growth monitoring component can centrally collect and preliminarily process the data collected by various sensors, convert analog signals into digital signals, and transmit the data collected by the data collector to the irrigation area water resource scheduling component.

[0028] Specifically, the process of determining the growth characteristic evaluation values of the crops in each sub-irrigation area is as follows:

[0029] The growth data of the crops in each sub-irrigation area specifically includes the plant height of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of the leaves of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, the corresponding area of each leaf of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point, and the corresponding length of each root system of each plant of the crops in each sub-irrigation area at the characteristic monitoring time point;

[0030] The above-mentioned characteristic monitoring time points are specifically several characteristic monitoring time points obtained by dividing the characteristic monitoring period. The division method can be 1 hour. The determination of the characteristic monitoring period is obtained by the irrigation area dispatcher through comprehensive analysis of factors such as the dispatching status, crop growth status, and actual monitoring requirements.

[0031] The above growth data can be specifically extracted from the monitoring reports of the crop growth monitoring components.

[0032] Add up the corresponding areas of each leaf of each crop in each sub-irrigation area at the characteristic monitoring time point to obtain the total leaf area of each crop in each sub-irrigation area at the characteristic monitoring time point.

[0033] Add up the corresponding lengths of each root system of each crop in each sub-irrigation area at the characteristic monitoring time point to obtain the total root length of each crop in each sub-irrigation area at the characteristic monitoring time point.

[0034] Comprehensively analyze the plant height of each crop in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of the leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the total leaf area of each crop in each sub-irrigation area at the characteristic monitoring time point, and the total root length of each crop in each sub-irrigation area at the characteristic monitoring time point to obtain the growth characteristic evaluation value of the crops in each sub-irrigation area. The specific method is as follows:

[0035]

[0036] In the formula, is the growth characteristic evaluation value of the crops in the g-th sub-irrigation area, where g is the number of each sub-irrigation area, , and G is the total number of sub-irrigation areas, is the plant height of the h-th crop in the g-th sub-irrigation area at the characteristic monitoring time point, where h is the number of each crop, , and H is the total number of crops, is the number of leaves of the h-th crop in the g-th sub-irrigation area at the characteristic monitoring time point, is the total chlorophyll content of the leaves of the h-th crop in the g-th sub-irrigation area at the characteristic monitoring time point, is the total leaf area of the h-th crop in the g-th sub-irrigation area at the characteristic monitoring time point, is the total root length of the h-th crop in the g-th sub-irrigation area at the characteristic monitoring time point, is the growth characteristic weight parameter corresponding to the plant height predefined in the irrigation area scheduling information database, is the growth characteristic weight parameter corresponding to the number of leaves predefined in the irrigation area scheduling information database, is the growth characteristic weight parameter corresponding to the total chlorophyll content of the leaves predefined in the irrigation area scheduling information database, is the growth characteristic weight parameter corresponding to the total leaf area predefined in the irrigation area scheduling information database, It is the growth characteristic weight parameter corresponding to the predefined total root length in the irrigation area scheduling information database, and e is the natural constant.

[0037] It should be elaborated that the parameters in the above expression are data of different dimensions and have different units and magnitudes. Therefore, a normalization data processing method is adopted for the data in the above expression to eliminate the dimensional difference and weight imbalance problems between different characteristics, and to improve the convergence speed and accuracy of the above expression.

[0038] In this embodiment, the growth characteristic evaluation value of the crops in each sub-irrigation area is expressed as a quantitative description of what growth stage the crops are in, which helps the irrigation area scheduling personnel to reasonably arrange irrigation activities according to the critical periods of crop growth. For the growth characteristic evaluation value, the growth characteristics corresponding to each growth characteristic evaluation value interval are stored in the irrigation area scheduling information database, which reflects the physiological characteristics of the crops.

[0039] It should be explained that the above-mentioned crop plant height refers to the vertical distance from the base of each crop (usually the ground part) to the top of the crop (such as the highest leaf, ear or stem tip of the plant) monitored by the crop growth monitoring component at the characteristic monitoring time point; the number of leaves refers to the number of leaves grown on each crop monitored by the crop growth monitoring component at the characteristic monitoring time point; the total chlorophyll content of the leaves refers to the total content of chlorophyll in the leaves of each crop monitored by the crop growth monitoring component at the characteristic monitoring time point, and its unit can be milligrams / gram. For example, 1 gram of leaves contains 20 milligrams of chlorophyll; the total leaf area refers to the total area of the leaves grown on each crop monitored by the crop growth monitoring component at the characteristic monitoring time point; the total root length refers to the total length of the roots grown on each crop monitored by the crop growth monitoring component at the characteristic monitoring time point.

[0040] Among them, the growth characteristic weight parameters corresponding to the crop plant height, the growth characteristic weight parameters corresponding to the leaf number, the growth characteristic weight parameters corresponding to the total chlorophyll content of the leaves, the growth characteristic weight parameters corresponding to the total leaf area, and the growth characteristic weight parameters corresponding to the total root length are all extracted from the irrigation area scheduling information database. The mapping relationship therein can be a one-to-one or many-to-one relationship. For example, the crop plant height forms a mapping set with the growth characteristic weight parameter corresponding to the preset crop plant height in the irrigation area scheduling information database, and the real-time crop plant height is brought into the mapping set to obtain the growth characteristic weight parameter corresponding to the crop plant height; the leaf number forms a mapping set with the growth characteristic weight parameter corresponding to the preset leaf number in the irrigation area scheduling information database, and the real-time leaf number is brought into the mapping set to obtain the growth characteristic weight parameter corresponding to the leaf number; the total chlorophyll content of the leaves forms a mapping set with the growth characteristic weight parameter corresponding to the preset total chlorophyll content of the leaves in the irrigation area scheduling information database, and the real-time total chlorophyll content of the leaves is brought into the mapping set to obtain the growth characteristic weight parameter corresponding to the total chlorophyll content of the leaves; the total leaf area forms a mapping set with the growth characteristic weight parameter corresponding to the preset total leaf area in the irrigation area scheduling information database, and the real-time total leaf area is brought into the mapping set to obtain the growth characteristic weight parameter corresponding to the total leaf area; the total root length forms a mapping set with the growth characteristic weight parameter corresponding to the preset total root length in the irrigation area scheduling information database, and the real-time total root length is brought into the mapping set to obtain the growth characteristic weight parameter corresponding to the total root length. In this embodiment, the value ranges of the growth characteristic weight parameters corresponding to the crop plant height, the growth characteristic weight parameters corresponding to the leaf number, the growth characteristic weight parameters corresponding to the total chlorophyll content of the leaves, the growth characteristic weight parameters corresponding to the total leaf area, and the growth characteristic weight parameters corresponding to the total root length are all (0, 1).

[0041] In this embodiment, as the plant height of the crop increases, the number of leaves usually also increases, and the total leaf area will also expand accordingly. Because during the growth process of the crop, the increase in plant height provides space for the growth of leaves. At the same time, the growth of leaves also helps the plant produce more organic substances through photosynthesis, providing energy and material basis for the plant height. A large number of leaves and a large area mean more space for chlorophyll to be carried. Generally, the larger the total leaf area, the higher the total chlorophyll content. Because chlorophyll is distributed in the chloroplasts of the leaves, more leaves can accommodate more chloroplasts, thus containing more chlorophyll. Crops with a longer total root length can absorb more nutrients such as nitrogen, phosphorus, and potassium, promoting the growth of leaves and the synthesis of chlorophyll, thereby indirectly affecting the number of leaves, the total leaf area, and the total chlorophyll content. The comprehensive changes of these parameters can help accurately judge the growth stage of the crop. For example, in the initial stage of crop growth, the plant height is low, the number of leaves is small, the total leaf area is small, the total chlorophyll content is relatively low, and the total root length is short. At this time, the growth characteristic evaluation value of the crops in each sub-irrigation area is small. As time goes by, these parameters gradually increase. When the plant height reaches a certain level, the number and area of leaves increase steadily, the total chlorophyll content remains at a high level, and the root system develops well, it indicates that the crop has entered the vigorous growth period, and the growth characteristic evaluation value of the crops in each sub-irrigation area is at a large value.

[0042] Further, the estimated water requirement of the crops in each sub-irrigation area and the estimated irrigation time period of the crops in each sub-irrigation area are obtained by matching. The specific matching process is as follows:

[0043] Match the growth characteristic evaluation value of the crops in each sub-irrigation area with the estimated water requirement corresponding to each pre-defined growth characteristic evaluation value interval in the irrigation area scheduling information database. The specific matching process is as follows: Extract the mapping set between the growth characteristic evaluation value and the estimated water requirement of the crops in each sub-irrigation area from the irrigation area scheduling information database, determine the interval to which the growth characteristic evaluation value of the crops in each sub-irrigation area belongs, and allocate the estimated water requirement of this interval to the crops in each sub-irrigation area corresponding to the growth characteristic evaluation value, so as to obtain the estimated water requirement of the crops in each sub-irrigation area by matching.

[0044] Match the growth characteristic evaluation value of the crops in each sub-irrigation area with the estimated irrigation time period corresponding to each pre-defined growth characteristic evaluation value interval in the irrigation area scheduling information database. The specific matching process is as follows: Extract the mapping set between the growth characteristic evaluation value and the estimated irrigation time period of the crops in each sub-irrigation area from the irrigation area scheduling information database, determine the interval to which the growth characteristic evaluation value of the crops in each sub-irrigation area belongs, and allocate the estimated irrigation time period of this interval to the crops in each sub-irrigation area corresponding to the growth characteristic evaluation value, so as to obtain the estimated irrigation time period of the crops in each sub-irrigation area by matching.

[0045] It should be noted that the water requirements of the crops in each of the above-mentioned sub-irrigation areas and the irrigation periods of the crops in each sub-irrigation area are affected by a combination of factors, including the physiological characteristics of the crops themselves, soil conditions, and meteorological factors. At the same time, these values have a certain reasonable range and will not increase infinitely. For example, in the seedling stage of rice, since it has just been sown or transplanted not long ago, the plant height is relatively short, generally about 10-15 cm, the number of leaves is small, usually 3-5 leaves, and the roots have not yet fully developed. At this time, the growth characteristic evaluation value can be set between 0-30. Assuming a full score of 100, the water requirement of rice in the seedling stage is relatively small because the plants are small and the intensity of transpiration and photosynthesis is low. The estimated water requirement per mu per day is about 3-5 cubic meters. During this period, since the seedlings are relatively fragile and sensitive to environmental changes, the irrigation period is preferably selected in the morning, such as 7-9 o'clock or in the evening, such as 17-19 o'clock. At this time, the temperature is relatively low and the evaporation is small, which is conducive to the seedlings absorbing water and avoiding damage to the seedlings caused by irrigation during high-temperature periods.

[0046] In the booting stage, the rice is growing vigorously at this time, the plant height can reach 70-100 cm, the number of leaves is about 10-12, the booting begins, the panicle gradually develops, and the roots are also more developed. The growth characteristic evaluation value is between 60-90. This is the period when the water requirement of rice is the largest because the development of the panicle requires a large amount of water, and at the same time, the photosynthesis and transpiration are also very strong. The estimated water requirement per mu per day can reach about 10-12 cubic meters. In order to ensure the water demand of rice in the booting stage, the irrigation time can be appropriately extended. While irrigating in the morning and evening, if the weather is hot and the evaporation is large, a small amount of water can also be supplemented at noon, but attention should be paid to avoiding a large amount of irrigation during high-temperature and strong-light periods, which may cause damage to the rice due to too high water temperature.

[0047] Estimated water resource loss: The meteorological data monitoring component monitors the meteorological environment of each sub-irrigation area, collects the real-time meteorological characteristic data of each sub-irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, evaluates the influence value of the meteorological characteristics of each sub-irrigation area during the estimated irrigation period, matches the estimated water resource loss amount of each sub-irrigation area during the estimated irrigation period, and uploads it to the irrigation area water resource scheduling component.

[0048] The above-mentioned meteorological data monitoring component specifically includes a temperature sensor, which can measure the air temperature in real time; a wind speed sensor, which can measure the wind direction and wind speed; a light sensor, which is used to monitor the light intensity and light duration. The meteorological data monitoring component can collect and preliminarily process the meteorological data collected by each sensor, that is, convert the analog signal transmitted by the sensor into a digital signal and communicate wirelessly with the irrigation area water resource scheduling component.

[0049] Specifically, the process of evaluating the influence value of the meteorological characteristics of each sub-irrigation area during the estimated irrigation period is as follows:

[0050] The real-time meteorological characteristic data of each sub-irrigation area specifically includes the real-time sunshine intensity of each sub-irrigation area during the estimated irrigation period, the real-time ambient wind speed of each sub-irrigation area during the estimated irrigation period, the real-time ambient temperature of each sub-irrigation area during the estimated irrigation period, and the real-time water vapor evaporation of each sub-irrigation area during the estimated irrigation period.

[0051] The above meteorological characteristic data can specifically be extracted from the monitoring reports of the meteorological data monitoring component.

[0052] Match the total chlorophyll content of the leaves of each plant in each sub-irrigation area at the characteristic monitoring time point with the sunshine reference intensity corresponding to each total chlorophyll content interval predefined in the irrigation area scheduling information database. The specific matching process is as follows: Extract the mapping set between the total chlorophyll content of the leaves of each plant in each sub-irrigation area at the characteristic monitoring time point and each sunshine reference intensity from the irrigation area scheduling information database, determine the interval to which the total chlorophyll content of the leaves of each plant in each sub-irrigation area at the characteristic monitoring time point belongs, and assign the sunshine reference intensity corresponding to this interval to each plant in each sub-irrigation area corresponding to the total chlorophyll content, so as to match the sunshine reference intensity corresponding to each plant in each sub-irrigation area, and perform mean processing to obtain and record it as the mean sunshine reference intensity of each sub-irrigation area.

[0053] Match the total root length of each plant in each sub-irrigation area at the characteristic monitoring time point with the ambient reference temperature corresponding to each total root length interval predefined in the irrigation area scheduling information database. The specific matching process is as follows: Extract the mapping set between the total root length of each plant in each sub-irrigation area at the characteristic monitoring time point and each ambient reference temperature from the irrigation area scheduling information database, determine the interval to which the total root length of each plant in each sub-irrigation area at the characteristic monitoring time point belongs, and assign the ambient reference temperature corresponding to this interval to each plant in each sub-irrigation area corresponding to the total root length, so as to match the ambient reference temperature mean corresponding to each plant in each sub-irrigation area, and perform mean processing to obtain and record it as the ambient reference temperature mean of each sub-irrigation area.

[0054] Obtain the soil type of each sub-irrigation area and match it with the soil characteristic influence coefficient corresponding to each soil type predefined in the irrigation area scheduling information database. The specific matching process is as follows: Obtain the mapping set between the soil type of each sub-irrigation area and the soil characteristic influence coefficient from the irrigation area scheduling information database, determine the specific soil category of each sub-irrigation area, and assign the soil characteristic influence coefficient corresponding to this category to each sub-irrigation area corresponding to the soil type, so as to obtain the soil characteristic influence coefficient of each sub-irrigation area.

[0055] The above soil type can be detected by a multi-parameter soil analyzer.

[0056] Comprehensively analyze the real-time solar radiation intensity of each sub-irrigation area during the estimated irrigation period, the real-time ambient wind speed of each sub-irrigation area during the estimated irrigation period, the real-time ambient temperature of each sub-irrigation area during the estimated irrigation period, the real-time water vapor evaporation of each sub-irrigation area during the estimated irrigation period, and the soil characteristic influence coefficient of each sub-irrigation area to obtain the meteorological characteristic influence value of each sub-irrigation area during the estimated irrigation period. The specific analysis method is as follows:

[0057]

[0058] In the formula, is the meteorological characteristic influence value of the g-th sub-irrigation area during the estimated irrigation period, g is the number of each sub-irrigation area, , G is the total number of sub-irrigation areas, t is the time variable, , is the start time point of the estimated irrigation period, is the end time point of the estimated irrigation period, is the real-time solar radiation intensity of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the average value of the solar radiation reference intensity of the g-th sub-irrigation area, is the real-time ambient temperature of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the average value of the ambient reference temperature of the g-th sub-irrigation area, is the real-time ambient wind speed of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the real-time water vapor evaporation of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the soil characteristic influence coefficient of the g-th sub-irrigation area, is the meteorological characteristic parameter corresponding to the real-time ambient wind speed predefined in the irrigation area scheduling information database, is the meteorological characteristic parameter corresponding to the real-time water vapor evaporation predefined in the irrigation area scheduling information database, is the meteorological characteristic parameter corresponding to the soil characteristic influence coefficient predefined in the irrigation area scheduling information database, and e is the natural constant.

[0059] It should be noted that the parameters in the above expressions are data of different dimensions and have different units and magnitudes. Therefore, a normalization data processing method is adopted for the data in the above expressions to eliminate the dimensional differences and weight imbalance problems between different characteristics and improve the convergence speed and accuracy of the above expressions.

[0060] The influence values of the meteorological characteristics of each of the above-mentioned sub-irrigation areas under the predicted irrigation period represent the numerical values for comprehensively evaluating the influence degree of meteorological factors on the irrigation process. It takes into account the comprehensive influence of various meteorological factors, such as temperature, wind speed, sunlight, etc., on irrigation demand and irrigation effect during the predicted irrigation period. The larger the influence value of meteorological characteristics, the more easily the irrigation quality is affected during the irrigation process.

[0061] It should be explained that the above-mentioned real-time sunlight intensity refers to the intensity of solar light actually received by each sub-irrigation area under the predicted irrigation period. The sunlight intensity is usually measured by the solar radiation power received per unit area, and the unit is watt per square meter (W / m²), which reflects the strength of solar radiation; the mean value of the reference sunlight intensity refers to the adapted mean value corresponding to the preset sunlight intensity; the real-time ambient temperature refers to the temperature of the air around each sub-irrigation area actually measured under the predicted irrigation period; the mean value of the reference ambient temperature refers to the adapted mean value corresponding to the preset ambient temperature; the real-time ambient wind speed refers to the flow velocity of the air around each sub-irrigation area actually measured under the predicted irrigation period; the real-time water vapor evaporation amount refers to the amount of water vapor actually evaporated into the atmosphere per unit time from the ground per unit area of each sub-irrigation area, including the soil surface, water surface, and vegetation surface, etc., usually expressed in millimeters (mm), which reflects the actual quantity of water lost due to evaporation in a specific period and specific area; the soil characteristic influence coefficient refers to the coefficient of the influence degree of the texture characteristics of the soil on factors such as water volume scheduling in the irrigation area and crop growth. The soil texture characteristics can specifically be categories such as sandy soil, loam soil, and clay soil.

[0062] Among them, the meteorological characteristic parameters corresponding to the real-time ambient wind speed, the meteorological characteristic parameters corresponding to the real-time water vapor evaporation amount, and the meteorological characteristic parameters corresponding to the soil characteristic influence coefficient are all extracted from the irrigation area scheduling information database. The mapping relationship therein can be a one-to-one or many-to-one relationship. For example, the real-time ambient wind speed and the meteorological characteristic parameters corresponding to the preset real-time ambient wind speed in the irrigation area scheduling information database form a mapping set, and the real-time ambient wind speed is brought into the mapping set to obtain the meteorological characteristic parameters corresponding to the real-time ambient wind speed; the real-time water vapor evaporation amount and the meteorological characteristic parameters corresponding to the preset real-time water vapor evaporation amount in the irrigation area scheduling information database form a mapping set, and the real-time water vapor evaporation amount is brought into the mapping set to obtain the meteorological characteristic parameters corresponding to the real-time water vapor evaporation amount; the soil characteristic influence coefficient and the meteorological characteristic parameters corresponding to the preset soil characteristic influence coefficient in the irrigation area scheduling information database form a mapping set, and the real-time soil characteristic influence coefficient is brought into the mapping set to obtain the meteorological characteristic parameters corresponding to the soil characteristic influence coefficient. In this embodiment, the value ranges of the meteorological characteristic parameters corresponding to the real-time ambient wind speed, the meteorological characteristic parameters corresponding to the real-time water vapor evaporation amount, and the meteorological characteristic parameters corresponding to the soil characteristic influence coefficient are all (0, 1).

[0063] In this embodiment, the sunlight intensity is the main energy source for the increase in ambient temperature. Intense sunlight causes the ground and vegetation to absorb solar radiant energy, thereby increasing the temperature. If the sunlight intensity is too high and deviates significantly from the reference value of sunlight intensity, it will lead to an excessively high ambient temperature, deviating from its reference value of ambient temperature. At the same time, it will also accelerate the evaporation of water vapor in the entire area, greatly increasing the amount of water vapor evaporation, resulting in a relatively large impact value of meteorological characteristics in each sub-irrigation area during the estimated irrigation period, bringing negative impacts to water resource irrigation and scheduling; the interaction between ambient temperature and wind speed also affects the amount of water vapor evaporation. When the temperature rises, the density of the air near the ground decreases, forming an upward air current, which is prone to convection with the surrounding cold air, thus increasing the wind speed. The increase in wind speed will accelerate the diffusion of water vapor, reducing the concentration of water vapor near the evaporation surface, resulting in an increase in the amount of water vapor evaporation and also leading to an increase in the impact value of meteorological characteristics; the soil texture determines the water retention capacity and pore structure of the soil in each sub-irrigation area. The larger the soil characteristic influence coefficient, the worse the water retention capacity of the soil, which in turn affects the evaporation of water vapor and exacerbates the negative impact on water resource irrigation and scheduling.

[0064] Further, the process of matching to obtain the estimated water resource loss amount in each sub-irrigation area during the estimated irrigation period is as follows:

[0065] Match the impact value of meteorological characteristics in each sub-irrigation area during the estimated irrigation period with the estimated water resource loss amount corresponding to each predefined interval of the impact value of meteorological characteristics in the irrigation area scheduling information database. The specific matching process is as follows: Obtain the mapping set between the impact value of meteorological characteristics and the estimated water resource loss amount in each sub-irrigation area during the estimated irrigation period from the irrigation area scheduling information database, determine the interval to which the impact value of meteorological characteristics in each sub-irrigation area during the estimated irrigation period belongs, and allocate the estimated water resource loss amount corresponding to this interval to each sub-irrigation area corresponding to the impact value of meteorological characteristics, so as to match and obtain the estimated water resource loss amount in each sub-irrigation area during the estimated irrigation period.

[0066] Determination of the irrigation area scheduling status: The water resource scheduling component of the irrigation area monitors the water resources of the irrigation area in real time, collects the water supply data of each water conveyance channel in the irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, and comprehensively considers the estimated water demand of the crops in each sub-irrigation area and the estimated water resource loss amount in each sub-irrigation area during the estimated irrigation period, evaluates the scheduling quality index of each water conveyance channel in the irrigation area during the estimated irrigation period, and compares it with each predefined scheduling quality reference index, so as to determine the scheduling status of each water conveyance channel in the irrigation area during the estimated irrigation period and provide feedback on the water volume scheduling of the irrigation area.

[0067] The above-mentioned irrigation area water resource scheduling component is wirelessly connected to the crop growth monitoring component and the meteorological data monitoring component, and specifically includes a flow sensor, which is mainly used to measure the water flow rate and velocity in water conveyance facilities such as channels and pipelines; a valve flow sensor, which is used to measure the flow rate of the outlet valves of water sources such as reservoirs and ponds; a valve controller, which is used to control the opening degree of the gates of the channel facilities, and adjusts the opening degree of the gates by receiving the scheduling instructions of the irrigation area water resource scheduling component, so as to control the flow rate and direction of the water flow; the irrigation area water resource scheduling component can collect and preliminarily process the data collected by devices such as the flow sensor, the valve flow sensor and the valve controller, and convert the analog signal into a digital signal for the irrigation area schedulers to grasp the water volume scheduling situation of the irrigation area in real time.

[0068] Specifically, the scheduling quality index of each water conveyance channel in the evaluation irrigation area during the estimated irrigation period is specifically evaluated as follows:

[0069] The water supply data of each water conveyance channel in the irrigation area specifically includes the actual conveyance volume of each water conveyance channel in the irrigation area during the estimated irrigation period, the actual arrival volume of each water conveyance channel in the irrigation area during the estimated irrigation period, and the maximum flow velocity of each water conveyance channel in the irrigation area during the estimated irrigation period.

[0070] The above-mentioned water supply data can specifically be extracted from the scheduling report of the irrigation area water resource scheduling component.

[0071] Perform a difference processing on the actual conveyance volume of each water conveyance channel in the irrigation area during the estimated irrigation period and the actual arrival volume of each water conveyance channel in the irrigation area during the estimated irrigation period, and obtain and record it as the actual water resource loss volume of each water conveyance channel in the irrigation area during the estimated irrigation period.

[0072] Match the real-time environmental wind speed of each sub-irrigation area during the estimated irrigation period with the maximum reference flow velocity corresponding to each real-time environmental wind speed interval predefined in the irrigation area scheduling information database. The specific matching process is as follows: obtain the mapping set between the real-time environmental wind speed and the maximum reference flow velocity of each sub-irrigation area during the estimated irrigation period from the irrigation area scheduling information database, determine the specific interval of the real-time environmental wind speed of each sub-irrigation area during the estimated irrigation period, and assign the maximum reference flow velocity corresponding to this interval to each sub-irrigation area corresponding to the real-time environmental wind speed, so as to match the maximum reference flow velocity of each sub-irrigation area, and through a preset corresponding method, obtain the maximum reference flow velocity of each water conveyance channel in the irrigation area.

[0073] It should be elaborated that the above-mentioned preset corresponding method is specifically that there is a one-to-one correspondence between each sub-irrigation area and each water conveyance channel in the irrigation area.

[0074] The crop growth monitoring component monitors the growth status of the crops in each sub-irrigation area in real time during the estimated irrigation period, collects the growth data of the crops in each sub-irrigation area during the estimated irrigation period, determines the growth characteristic evaluation values of the crops in each sub-irrigation area during the estimated irrigation period, and obtains and records the growth characteristic evaluation values of the crops in the sub-irrigation areas belonging to each water conveyance channel in the irrigation area through a preset corresponding method.

[0075] The growth data of the crops in each sub-irrigation area during the estimated irrigation period specifically includes the plant height of each plant in each sub-irrigation area at the estimated irrigation time point, the number of leaves of each plant in each sub-irrigation area at the estimated irrigation time point, the total chlorophyll content of the leaves of each plant in each sub-irrigation area at the estimated irrigation time point, the corresponding area of each leaf of each plant in each sub-irrigation area at the estimated irrigation time point, and the corresponding length of each root system of each plant in each sub-irrigation area at the estimated irrigation time point.

[0076] The above-mentioned estimated irrigation time point is specifically several estimated irrigation time points obtained by dividing the estimated irrigation period, and the division method can be 1 hour.

[0077] The specific method for determining the growth characteristic evaluation values of the crops in each sub-irrigation area during the estimated irrigation period is as shown in the specific method for determining the growth characteristic evaluation values of the crops in each sub-irrigation area, and will not be elaborated in this embodiment.

[0078] Extract the water volume irrigation adaptation difference and the water resource loss adaptation difference from the irrigation area scheduling information database.

[0079] The estimated water requirements of the crops in each sub-irrigation area are obtained and recorded as the estimated water requirements of the crops in the sub-irrigation areas belonging to each water conveyance channel in the irrigation area through a preset corresponding method.

[0080] The estimated water resource losses in each sub-irrigation area during the estimated irrigation period are obtained as the estimated water resource losses of each water conveyance channel in the irrigation area during the estimated irrigation period through a preset corresponding method.

[0081] Comprehensively analyze the actual arrival volume of each water conveyance channel in the irrigation area during the estimated irrigation period, the estimated water requirements of the crops in the sub-irrigation areas belonging to each water conveyance channel in the irrigation area, the estimated water resource losses of each water conveyance channel in the irrigation area during the estimated irrigation period, the actual water resource losses of each water conveyance channel in the irrigation area during the estimated irrigation period, the maximum flow velocity of each water conveyance channel in the irrigation area during the estimated irrigation period, and the growth characteristic evaluation values of the crops in each sub-irrigation area during the estimated irrigation period to obtain the scheduling quality index of each water conveyance channel in the irrigation area during the estimated irrigation period. The specific method is as follows:

[0082]

[0083] In the formula, is the scheduling quality index of the f-th water conveyance channel in the irrigation district during the estimated irrigation period, where f is the number of each water conveyance channel, , and F is the total number of water conveyance channels, is the actual arrival volume of the f-th water conveyance channel in the irrigation district during the estimated irrigation period, is the estimated water demand of the crops in the sub-irrigation district to which the f-th water conveyance channel in the irrigation district belongs, is the difference in water volume irrigation adaptation, is the actual water resource loss volume of the f-th water conveyance channel in the irrigation district during the estimated irrigation period, is the estimated water resource loss volume of the f-th water conveyance channel in the irrigation district during the estimated irrigation period, is the difference in water resource loss adaptation, is the maximum flow velocity of the f-th water conveyance channel in the irrigation district during the estimated irrigation period, is the maximum reference flow velocity of the f-th water conveyance channel in the irrigation district, is the growth characteristic evaluation value of the crops in the sub-irrigation district to which the f-th water conveyance channel in the irrigation district belongs during the estimated irrigation period, is the scheduling quality impact parameter corresponding to the growth characteristic evaluation value predefined in the irrigation district scheduling information database during the estimated irrigation period, and e is the natural constant.

[0084] The growth characteristic evaluation value of the crops in the sub-irrigation districts to which each water conveyance channel in the irrigation district belongs during the estimated irrigation period is obtained by comprehensively analyzing the plant height of each crop in each sub-irrigation district at the estimated irrigation time point, the number of leaves of each crop in each sub-irrigation district at the estimated irrigation time point, the total chlorophyll content of the leaves of each crop in each sub-irrigation district at the estimated irrigation time point, the total leaf area of each crop in each sub-irrigation district at the estimated irrigation time point, and the total root length of each crop in each sub-irrigation district at the estimated irrigation time point, and the growth characteristic evaluation value of the crops in each sub-irrigation district during the estimated irrigation period is obtained. Through the preset corresponding method, the growth characteristic evaluation value of the crops in the sub-irrigation districts to which each water conveyance channel in the irrigation district belongs during the estimated irrigation period is obtained and recorded.

[0085] In this embodiment, the scheduling quality index of each water conveyance channel in the irrigation district during the estimated irrigation period is expressed as a quantitative evaluation of the water supply reliability, water volume distribution rationality, water conveyance efficiency, etc. of each water conveyance channel in the irrigation district during the estimated irrigation period. The larger the scheduling quality index during the estimated irrigation period, the greater the reliability and rationality of each water conveyance channel in the irrigation district.

[0086] It should be noted that the above actual arrival volume refers to the amount of water finally actually delivered to the corresponding irrigation area through each water conveyance channel during the estimated irrigation period. This amount of water is usually measured in cubic meters (m³) and is the effective water volume that actually reaches the irrigation destination after deducting losses such as channel seepage and evaporation during the process of channel water conveyance; the estimated water demand refers to the amount of water required by crops in these sub-irrigation areas within a certain period of time estimated in advance based on various factors. This is a predicted value used to plan the distribution of irrigation water in advance to meet the water demand for crop growth; the poor adaptability of water volume irrigation refers to the reference value corresponding to the preset water volume irrigation difference; the actual water resource loss volume refers to the amount of water lost due to various reasons during the water conveyance process of each water conveyance channel during the estimated irrigation period. Specifically, it is the difference between the actual conveyance volume and the actual arrival volume. These losses include the reduction of water volume caused by phenomena such as channel seepage, surface evaporation, and leakage during the water conveyance process; the estimated water resource loss volume refers to the amount of water that may be lost due to various reasons during the water conveyance process of each water conveyance channel estimated in advance based on various factors. This is a predicted value used to plan the distribution of irrigation water in advance to meet the water demand for crop growth; the poor adaptability of water resource loss refers to the reference value corresponding to the preset water resource loss difference; the maximum flow velocity refers to the maximum speed that the water flow in the water conveyance channel can reach during the estimated irrigation period. This speed is the highest flow velocity instantaneously reached by the water flow during the channel water conveyance process, affected by many factors such as the channel slope, cross-sectional shape, roughness coefficient, and upstream and downstream water level differences, and is usually expressed in meters per second (m / s); the maximum reference flow velocity refers to the adaptation value corresponding to the preset maximum flow velocity.

[0087] Among them, the scheduling quality impact parameter corresponding to the growth characteristic evaluation value during the estimated irrigation period is obtained by extracting from the irrigation area scheduling information database. The mapping relationship therein can be a one-to-one or many-to-one relationship. For example, the growth characteristic evaluation value during the estimated irrigation period and the scheduling quality impact parameter corresponding to the preset growth characteristic evaluation value in the irrigation area scheduling information database during the estimated irrigation period form a mapping set. Substituting the real-time growth characteristic evaluation value during the estimated irrigation period into the mapping set to obtain the scheduling quality impact parameter corresponding to the growth characteristic evaluation value during the estimated irrigation period. In this embodiment, the value range of the scheduling quality impact parameter corresponding to the growth characteristic evaluation value during the estimated irrigation period is (0, 1).

[0088] In this embodiment, the change in the water resource loss difference will directly affect the water volume irrigation difference. For example, if the water resource loss difference is positive, that is, the actual water resource loss exceeds the expectation, then the water volume reaching the irrigation area will decrease, resulting in the water volume irrigation difference may be negative, that is, the actual irrigation water volume is less than the water demand of the crops. The adverse changes in both the water volume irrigation difference and the water resource loss difference will have a negative impact on the irrigation effect. If the water volume irrigation difference is too large, some crops may not get enough water, affecting growth; if the water resource loss difference is too large, not only will water resources be wasted, but also the operating cost of the irrigation system may increase, and at the same time, it is impossible to ensure enough water volume for irrigation, so that the scheduling quality index of each water conveyance channel in the irrigation area during the estimated irrigation period is greatly reduced; the maximum flow velocity will affect the water conveyance capacity and irrigation efficiency of the water conveyance channel. During the estimated irrigation period, a higher maximum flow velocity can make the water be conveyed to the irrigation area faster. If the maximum flow velocity can be maintained within a reasonable range, it helps to reduce the water volume irrigation difference. On the contrary, the water volume irrigation difference will also have a feedback effect on the maximum flow velocity. If the actual irrigation water volume is greater than the water demand of the crops, it may cause the actual water conveyance capacity of the channel to exceed the expectation, which is related to the too high maximum flow velocity, so that it is difficult to ensure a reasonable distribution of irrigation water volume, bringing a negative impact on the scheduling quality.

[0089] In this embodiment, when the growth characteristic evaluation value of the crops in the sub-irrigation areas to which each water conveyance channel in the irrigation area belongs during the estimated irrigation period is larger than the growth characteristic evaluation value of the crops belonging to each sub-irrigation area, it means that the scheduling quality during the estimated irrigation period is higher. For example, the crop plant height grows normally, the number and color of leaves meet the requirements of the growth stage, the root system develops well, etc. This shows that the water supply is relatively stable and reliable. A good growth state means that during the estimated irrigation period, the water supply guarantee rate of the water conveyance channel is relatively high, and it can supply water stably according to the growth needs of the crops; the growth characteristic evaluation value during the estimated irrigation period can reflect the evenness of water volume distribution. If the growth conditions of the crops in each sub-irrigation area are relatively consistent, such as the plant height is uniform and the leaf lushness is similar, it indicates that the water volume distributed by the water conveyance channel to each sub-irrigation area is relatively uniform, and the water volume distribution evenness index is better.

[0090] Furthermore, the specific determination process for determining the scheduling state of each water conveyance channel in the irrigation area during the estimated irrigation period is as follows:

[0091] Compare the scheduling quality indicators of each water conveyance channel in the irrigation area during the estimated irrigation period with the predefined reference scheduling quality indicators in the irrigation area scheduling information database. If the scheduling quality indicator of a certain water conveyance channel in the irrigation area during the estimated irrigation period is greater than or equal to the reference scheduling quality indicator, it is determined that the scheduling status of this water conveyance channel in the irrigation area during the estimated irrigation period is the normal scheduling status. If there is a water conveyance channel in the irrigation area whose scheduling quality indicator during the estimated irrigation period is less than the reference scheduling quality indicator, it is determined that the scheduling status of this water conveyance channel in the irrigation area during the estimated irrigation period is the abnormal scheduling status, and feedback on the abnormal scheduling status is provided.

[0092] Specifically, the feedback on the water volume scheduling in the irrigation area is specifically the feedback on the abnormal scheduling status of this water conveyance channel in the irrigation area during the estimated irrigation period.

[0093] The feedback on the abnormal scheduling status is specifically to perform scheduling optimization operations on this water conveyance channel in the irrigation area to complete the feedback on this water conveyance channel in the irrigation area.

[0094] The above scheduling optimization operations can specifically be that when it is found that the water conveyance channel is in an abnormal scheduling status (such as a large deviation between the actual arrival volume and the estimated water demand), real-time flow data can be obtained through devices such as flow sensors, and then the gate opening can be adjusted using the gate control system on the channel to change the water conveyance flow. For example, if the actual arrival volume is much lower than the estimated irrigation volume and the water source supply is sufficient, the gate opening can be appropriately increased to increase the water conveyance flow to ensure that sufficient water is delivered to each sub-irrigation area; consider the impact of meteorological factors on water conveyance losses to optimize the water conveyance time. If the meteorological data monitoring component shows that the wind speed is high and the evaporation is strong during a certain period within the estimated irrigation period, the water conveyance time can be adjusted to a period with less evaporation loss. For example, the water conveyance time during the high-temperature period during the day can be adjusted to night to reduce the water loss caused by water surface evaporation; when it is found that the water loss is extremely high, it may be due to leakage problems in the channel. Check the channel, and for the leakage part, lining repair methods can be used. For example, for the small cracks in the concrete-lined channel, cement mortar can be used for caulking; for the leakage area of the soil channel, methods such as compacting the soil or laying anti-seepage geomembrane can be used to reduce leakage.

[0095] Refer to Figure 2 As shown, the second aspect of the present invention provides a water volume scheduling system for an irrigation area based on multi-factor coordination, including: a growth characteristic evaluation module, a water resource estimated loss module, and an irrigation area scheduling status determination module.

[0096] The second aspect of the present invention provides a water volume scheduling system for an irrigation area based on multi-factor coordination, further including: an irrigation area scheduling information database for storing the preset values of the water volume irrigation adaptation difference, the water resource loss adaptation difference, and various factors.

[0097] The growth characteristic evaluation module is connected to the water resource estimated loss module. Both the growth characteristic evaluation module and the water resource estimated loss module are connected to the irrigation area scheduling status determination module. The growth characteristic evaluation module, the water resource estimated loss module, and the irrigation area scheduling status determination module are all connected to the irrigation area scheduling information database.

[0098] The growth characteristic evaluation module is used for the crop growth monitoring component to monitor the growth status of the crops in each sub-irrigation area in real time, collect the growth data of the crops in each sub-irrigation area, determine the growth characteristic evaluation values of the crops in each sub-irrigation area, match the estimated water requirements of the crops in each sub-irrigation area and the estimated irrigation time periods of the crops in each sub-irrigation area, and upload them to the irrigation area water resource scheduling component.

[0099] The water resource estimated loss module is used for the meteorological data monitoring component to monitor the meteorological environment of each sub-irrigation area, collect the real-time meteorological characteristic data of each sub-irrigation area during the estimated irrigation time periods of the crops in each sub-irrigation area, evaluate the meteorological characteristic influence values of each sub-irrigation area during the estimated irrigation time periods, match the water resource estimated loss amounts of each sub-irrigation area during the estimated irrigation time periods, and upload them to the irrigation area water resource scheduling component.

[0100] The irrigation area scheduling status determination module is used for the irrigation area water resource scheduling component to monitor the water resources of the irrigation area in real time, collect the water supply data of each water conveyance channel in the irrigation area during the estimated irrigation time periods of the crops in each sub-irrigation area, and comprehensively consider the estimated water requirements of the crops in each sub-irrigation area and the water resource estimated loss amounts of each sub-irrigation area during the estimated irrigation time periods, evaluate the scheduling quality indexes of each water conveyance channel in the irrigation area during the estimated irrigation time periods, compare them with the predefined reference scheduling quality indexes, thereby determine the scheduling status of each water conveyance channel in the irrigation area during the estimated irrigation time periods, and provide feedback on the water volume scheduling of the irrigation area.

[0101] The third aspect of the present invention provides an irrigation area water volume scheduling device based on multi-factor coordination, including: a crop growth monitoring component, a meteorological data monitoring component, and an irrigation area water resource scheduling component.

[0102] The crop growth monitoring component is used to monitor the growth status of the crops in each sub-irrigation area in real time, determine the growth characteristic evaluation values of the crops in each sub-irrigation area, and upload them to the irrigation area water resource scheduling component.

[0103] The meteorological data monitoring component is used to monitor the meteorological environment of each sub-irrigation area, evaluate the meteorological characteristic influence values of each sub-irrigation area during the estimated irrigation time periods, and upload them to the irrigation area water resource scheduling component.

[0104] The irrigation district water resource scheduling component is used to comprehensively evaluate the growth characteristic values of the crops in each sub-irrigation district and the influence values of the meteorological characteristics of each sub-irrigation district during the estimated irrigation period, determine the scheduling quality indexes of each water conveyance channel in the irrigation district during the estimated irrigation period, and finally give feedback on the water volume scheduling of the irrigation district.

[0105] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the structure of the invention or exceed the scope defined by the present invention, they should fall within the protection scope of the present invention.

Claims

1. A method for irrigation area water dispatching based on multi-factor coordination, characterized in that: include: Growth characteristic evaluation: The crop growth monitoring component monitors the growth status of crops in each sub-irrigation area in real time, collects growth data of crops in each sub-irrigation area, determines the growth characteristic evaluation value of crops in each sub-irrigation area, matches the estimated water demand and estimated irrigation period of crops in each sub-irrigation area, and uploads them to the irrigation area water resource scheduling component; Estimated water resource loss: The meteorological data monitoring component monitors the meteorological environment of each sub-irrigation area, collects real-time meteorological characteristic data of each sub-irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, evaluates the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period, matches the estimated water resource loss of each sub-irrigation area during the estimated irrigation period, and uploads it to the irrigation area water resource scheduling component; Irrigation area scheduling status determination: The irrigation area water resource scheduling component monitors the water resources of the irrigation area in real time, collects water supply data of each water transfer channel in the irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, and comprehensively considers the estimated water demand of the crops in each sub-irrigation area and the estimated water resource loss of each sub-irrigation area during the estimated irrigation period, evaluates the scheduling quality indicators of each water transfer channel in the irrigation area during the estimated irrigation period, and compares them with the predefined scheduling quality reference indicators, so as to determine the scheduling status of each water transfer channel in the irrigation area during the estimated irrigation period, and provide feedback on the irrigation area water scheduling; The specific evaluation process of evaluating the dispatching quality index of each water delivery channel in the irrigation area during the estimated irrigation period is as follows: The water supply data of each water delivery channel in the irrigation area specifically includes the actual delivery volume of each water delivery channel in the irrigation area during the estimated irrigation period, the actual arrival volume of each water delivery channel in the irrigation area during the estimated irrigation period, and the maximum flow rate of each water delivery channel in the irrigation area during the estimated irrigation period; The actual water delivery volume of each water delivery channel in the irrigation area during the estimated irrigation period is processed with the actual arrival volume of each water delivery channel in the irrigation area during the estimated irrigation period, and the actual water resource loss of each water delivery channel in the irrigation area during the estimated irrigation period is obtained and recorded; Match the real-time environmental wind speed of each sub-irrigation area during the estimated irrigation period with the maximum reference flow rate corresponding to each predefined real-time environmental wind speed interval, so as to obtain the maximum reference flow rate of each sub-irrigation area, and obtain the maximum reference flow rate of each water delivery channel in the irrigation area through a preset corresponding method; The crop growth monitoring component monitors the growth status of the crops in each sub-irrigation area in real time during the estimated irrigation period, collects the growth data of the crops in each sub-irrigation area during the estimated irrigation period, determines the growth characteristic evaluation value of the crops in each sub-irrigation area during the estimated irrigation period, and obtains and records the growth characteristic evaluation value of the crops in the sub-irrigation area of ​​each water delivery channel of the irrigation area during the estimated irrigation period through a preset corresponding method; Extract the water irrigation adaptation difference and water resource loss adaptation difference from the irrigation area scheduling information database; The estimated water demand of the crops in each sub-irrigation area is obtained through a preset corresponding method and recorded as the estimated water demand of the crops in the sub-irrigation area belonging to each water delivery channel of the irrigation area; The estimated water resource loss of each sub-irrigation area during the estimated irrigation period is obtained through a preset corresponding method to obtain the estimated water resource loss of each water delivery channel in the irrigation area during the estimated irrigation period; The actual arrival volume of each water transfer channel in the irrigation area during the estimated irrigation period, the estimated water demand of crops in the sub-irrigation area to which each water transfer channel belongs, the estimated water resource loss of each water transfer channel in the irrigation area during the estimated irrigation period, the actual water resource loss of each water transfer channel in the irrigation area during the estimated irrigation period, the maximum flow rate of each water transfer channel in the irrigation area during the estimated irrigation period and the growth characteristic evaluation value of the crops in each sub-irrigation area during the estimated irrigation period are comprehensively analyzed to obtain the scheduling quality indicators of each water transfer channel in the irrigation area during the estimated irrigation period.

2. The irrigation area water dispatching method based on multi-factor coordination according to claim 1 is characterized by: The specific determination process of determining the growth characteristic evaluation value of the crops in each sub-irrigation area is as follows: The growth data of the crops in each sub-irrigation area specifically include the plant height of each crop in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of the leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the corresponding area of ​​each leaf of each crop in each sub-irrigation area at the characteristic monitoring time point, and the corresponding length of each root system of each crop in each sub-irrigation area at the characteristic monitoring time point; The corresponding areas of the leaves of each crop plant in each sub-irrigation area at the characteristic monitoring time point are added together to obtain the total leaf area of ​​each crop plant in each sub-irrigation area at the characteristic monitoring time point; The corresponding lengths of the roots of each crop in each sub-irrigation area at the characteristic monitoring time point are added together to obtain the total root length of each crop in each sub-irrigation area at the characteristic monitoring time point; A comprehensive analysis was conducted on the plant height of each crop in each sub-irrigation area at the characteristic monitoring time point, the number of leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the total chlorophyll content of leaves of each crop in each sub-irrigation area at the characteristic monitoring time point, the total leaf area of ​​each crop in each sub-irrigation area at the characteristic monitoring time point, and the total root length of each crop in each sub-irrigation area at the characteristic monitoring time point to obtain the growth characteristic evaluation value of the crops in each sub-irrigation area.

3. The irrigation area water dispatching method based on multi-factor coordination according to claim 2 is characterized by: The matching obtains the estimated water demand of the crops in each sub-irrigation area and the estimated irrigation period of the crops in each sub-irrigation area. The specific matching process is as follows: Matching the growth characteristic evaluation value of the crops in each sub-irrigation area with the estimated water demand corresponding to the predefined growth characteristic evaluation value interval, thereby obtaining the estimated water demand of the crops in each sub-irrigation area; The growth characteristic evaluation values ​​of the crops in each sub-irrigation area are matched with the estimated irrigation time periods corresponding to the predefined growth characteristic evaluation value intervals, so as to obtain the estimated irrigation time periods of the crops in each sub-irrigation area.

4. The irrigation area water dispatching method based on multi-factor coordination according to claim 1 is characterized by: The specific evaluation process of evaluating the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period is as follows: The real-time meteorological characteristic data of each sub-irrigation area specifically includes the real-time sunshine intensity of each sub-irrigation area during the estimated irrigation period, the real-time ambient wind speed of each sub-irrigation area during the estimated irrigation period, the real-time ambient temperature of each sub-irrigation area during the estimated irrigation period, and the real-time water vapor evaporation of each sub-irrigation area during the estimated irrigation period; The total chlorophyll content of leaves of each crop in each sub-irrigation area at the characteristic monitoring time point is matched with the sunshine reference intensity corresponding to the predefined total chlorophyll content interval of each leaf, so as to obtain the sunshine reference intensity corresponding to each crop in each sub-irrigation area, and the sunshine reference intensity corresponding to each crop in each sub-irrigation area is obtained by average processing and recorded as the sunshine reference intensity mean of each sub-irrigation area; The total root length of each crop in each sub-irrigation area at the characteristic monitoring time point is matched with the environmental reference temperature corresponding to each predefined total root length interval, so as to obtain the mean environmental reference temperature corresponding to each crop in each sub-irrigation area, and the mean value is processed and recorded as the mean environmental reference temperature of each sub-irrigation area; The soil type of each sub-irrigation area is obtained, and the soil characteristic influence coefficient corresponding to each predefined soil type is matched to obtain the soil characteristic influence coefficient of each sub-irrigation area; The real-time sunshine intensity, real-time wind speed, real-time ambient temperature, real-time water vapor evaporation and soil characteristic influence coefficient of each sub-irrigation area during the estimated irrigation period are comprehensively analyzed to obtain the meteorological characteristic influence value of each sub-irrigation area during the estimated irrigation period. The specific analysis method is as follows: ； In the formula, is the meteorological characteristic impact value of the g-th sub-irrigation area during the estimated irrigation period, g is the number of each sub-irrigation area, , G is the total amount of the sub-irrigation area, t is the time variable, , To estimate the start time of the irrigation period, To estimate the end time of the irrigation period, is the real-time sunshine intensity of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the mean reference sunshine intensity of the g-th sub-irrigation area, is the real-time ambient temperature of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the mean ambient reference temperature of the g-th sub-irrigation area, is the real-time ambient wind speed of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the real-time water vapor evaporation of the g-th sub-irrigation area at the t-th moment during the estimated irrigation period, is the soil characteristic influence coefficient of the g-th irrigation area, It is the meteorological characteristic parameter corresponding to the real-time ambient wind speed predefined in the irrigation area dispatch information database. It is the meteorological characteristic parameter corresponding to the real-time water vapor evaporation predefined in the irrigation area scheduling information database. It is the meteorological characteristic parameter corresponding to the soil characteristic influence coefficient predefined in the irrigation area scheduling information database, and e is a natural constant.

5. The irrigation area water dispatching method based on multi-factor coordination according to claim 1 is characterized by: The matching obtains the estimated water resource loss of each sub-irrigation area during the estimated irrigation period. The specific matching process is as follows: The meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period is matched with the estimated water resource loss corresponding to the predefined meteorological characteristic impact value interval. The specific matching process is: obtain the mapping set between the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period and the estimated water resource loss from the irrigation area scheduling information database, determine the interval to which the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period belongs, and allocate the estimated water resource loss corresponding to the interval to each sub-irrigation area corresponding to the meteorological characteristic impact value, so as to match and obtain the estimated water resource loss of each sub-irrigation area during the estimated irrigation period.

6. The irrigation area water dispatching method based on multi-factor coordination according to claim 1 is characterized by: The specific determination process of determining the dispatching status of each water delivery channel in the irrigation area during the estimated irrigation period is as follows: The scheduling quality index of each water transmission channel in the irrigation area during the estimated irrigation period is compared with the predefined scheduling quality reference indexes. If the scheduling quality index of a water transmission channel in the irrigation area during the estimated irrigation period is greater than or equal to the scheduling quality reference index, the scheduling state of the water transmission channel in the irrigation area during the estimated irrigation period is determined to be a normal scheduling state. If the scheduling quality index of a water transmission channel in the irrigation area during the estimated irrigation period is less than the scheduling quality reference index, the scheduling state of the water transmission channel in the irrigation area during the estimated irrigation period is determined to be an abnormal scheduling state, and feedback is given to the abnormal scheduling state.

7. The irrigation area water dispatching method based on multi-factor coordination according to claim 6 is characterized by: The feedback on the water volume scheduling of the irrigation area is specifically to provide feedback on the abnormal scheduling state of the water delivery channel in the irrigation area during the estimated irrigation period; The abnormal scheduling state is fed back, specifically, a scheduling optimization operation is performed on the water delivery channel of the irrigation area, thereby completing the feedback of the water delivery channel of the irrigation area.

8. A system using the irrigation area water dispatching method based on multi-factor coordination as claimed in any one of claims 1 to 7, characterized in that: include: The growth characteristic evaluation module is used for the crop growth monitoring component to monitor the growth status of crops in each sub-irrigation area in real time, collect the growth data of crops in each sub-irrigation area, determine the growth characteristic evaluation value of crops in each sub-irrigation area, match the estimated water demand of crops in each sub-irrigation area and the estimated irrigation period of crops in each sub-irrigation area, and upload them to the irrigation area water resource scheduling component; The water resource loss estimation module is used for the meteorological data monitoring component to monitor the meteorological environment of each sub-irrigation area, collect the real-time meteorological characteristic data of each sub-irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, evaluate the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period, match the estimated water resource loss of each sub-irrigation area during the estimated irrigation period, and upload it to the irrigation area water resource scheduling component; The irrigation area scheduling status determination module is used for the irrigation area water resources scheduling component to monitor the water resources of the irrigation area in real time, collect the water supply data of each water transfer channel in the irrigation area during the estimated irrigation period of the crops in each sub-irrigation area, and comprehensively consider the estimated water demand of the crops in each sub-irrigation area and the estimated water resource loss of each sub-irrigation area during the estimated irrigation period, evaluate the scheduling quality indicators of each water transfer channel in the irrigation area during the estimated irrigation period, and compare them with the predefined scheduling quality reference indicators, so as to determine the scheduling status of each water transfer channel in the irrigation area during the estimated irrigation period and provide feedback on the water scheduling of the irrigation area.

9. A device using the irrigation area water dispatching method based on multi-factor coordination as described in any one of claims 1 to 7, characterized in that: include: Crop growth monitoring component, meteorological data monitoring component and irrigation area water resource scheduling component; The crop growth monitoring component is used to monitor the growth status of the crops in each sub-irrigation area in real time, determine the growth characteristic evaluation value of the crops in each sub-irrigation area, and upload it to the irrigation area water resource scheduling component; The meteorological data monitoring component is used to monitor the meteorological environment of each sub-irrigation area, evaluate the meteorological characteristic impact value of each sub-irrigation area during the estimated irrigation period, and upload it to the irrigation area water resource scheduling component; The irrigation area water resource scheduling component is used to comprehensively evaluate the growth characteristics of crops in each sub-irrigation area and the meteorological characteristics of each sub-irrigation area during the estimated irrigation period, determine the scheduling quality indicators of each water transfer channel in the irrigation area during the estimated irrigation period, and finally provide feedback on the water scheduling of the irrigation area.

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