Water scheduling system and water scheduling method thereof

Abstract

The present disclosure relates to the technical field of water irrigation; specifically relates to a water scheduling system and a water scheduling method thereof; the system comprises a reservoir, has a flood discharge building and a water release tower; the water release tower is provided with a first diversion pipeline and a second diversion pipeline; a regulating reservoir is provided with a liquid inlet pipeline and a liquid outlet pipeline, and the second diversion pipeline is communicated with the liquid inlet pipeline; a plurality of irrigation systems, one irrigation system corresponding to at least one farmland; each irrigation system is communicated with the liquid outlet pipeline of the regulating reservoir; the first diversion pipeline is communicated with each irrigation system at the end far from the water release tower; the system and the method can consider flood control and irrigation, and improve the utilization rate of water.

Description

Technical Field

[0001] This disclosure relates to the field of water conservancy and irrigation technology, and more specifically, to a water dispatching system and a water dispatching method thereof. Background Technology

[0002] The reservoirs in the relevant technologies have reduced capacity due to long service life, which is not conducive to flood control or storing water for farmland irrigation.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a water dispatching system and method that takes into account both flood control and irrigation, thereby improving water utilization efficiency.

[0005] According to one aspect of this disclosure, a water dispatching system is provided, comprising: The reservoir includes flood discharge structures and a water release tower; the water release tower has a first diversion pipe and a second diversion pipe. A regulating tank, the regulating tank having an inlet pipe and an outlet pipe, and the second guide pipe being connected to the inlet pipe; Multiple irrigation systems are provided, with each irrigation system corresponding to at least one farmland; each irrigation system is connected to the outlet pipe of the regulating reservoir; the end of the first diversion pipe away from the water tower is connected to each irrigation system.

[0006] In one embodiment of this disclosure, the number of the regulating reservoirs is multiple; The inlet pipes of each of the aforementioned storage tanks are connected to the second diversion pipe; The outlet pipe of one of the storage tanks is connected to at least one of the irrigation systems.

[0007] In one embodiment of this disclosure, each irrigation system is configured in a one-to-one correspondence with each storage tank, each irrigation system is connected to the outlet pipe of the corresponding storage tank, and each storage tank is connected to the other via a guide pipe.

[0008] In one embodiment of this disclosure, the regulating tank has a concrete layer, a mortar cushion layer, an impermeable geomembrane layer, and a coarse sand cushion layer stacked sequentially from top to bottom.

[0009] In one embodiment of this disclosure, the regulating tank has a sedimentation zone and a water storage zone, with the water storage zone located above the sedimentation zone; In the sedimentation zone, the regulating tank has a first inclined surface; in the water storage zone, the regulating tank has a second inclined surface; the first inclined surface is connected to the second inclined surface, and the angle between the first inclined surface and the bottom of the regulating tank is smaller than the angle between the second inclined surface and the bottom of the regulating tank; both the inlet pipe and the outlet pipe are connected to the water storage zone.

[0010] In one embodiment of this disclosure, in the sedimentation zone, the regulating tank has a plurality of inclined plates, and the angle between the inclined plates and the bottom of the regulating tank is 50 degrees to 70 degrees.

[0011] In one embodiment of this disclosure, the angle between the inclined plate and the bottom of the storage tank is 60 degrees.

[0012] According to another aspect of this disclosure, a water scheduling method for the above-mentioned water scheduling system is provided, including an irrigation scheduling sub-method; The irrigation scheduling sub-method includes: S01. Mark the types of plants planted in each farmland and obtain irrigation parameters for each plant type; the irrigation parameters include irrigation pH value; S02. Obtain soil parameters and determine the types of plants that need irrigation based on the soil parameters; therefore, soil parameters include soil moisture. S03. Obtain the water level of the reservoir. If the water level of the reservoir is not lower than the irrigation water level, proceed to step S04; otherwise, proceed to step S06. S04. Obtain the first water quality parameter of the reservoir, the first water quality parameter including the pH value of the reservoir; if the first water quality parameter matches the irrigation parameter, open the first diversion pipe, use the water in the reservoir for irrigation, and execute step S05; otherwise, execute step S06. S05. If irrigation has not ended and the water level of the reservoir is below the minimum water level, proceed to step S06. S06. Obtain the water level of the regulating reservoir. If the water level of the regulating reservoir is greater than 0, obtain the second water quality parameter of the regulating reservoir, which includes the pH value of the regulating reservoir. If the second water quality parameter matches the irrigation parameter, open the outlet pipe and use the water from the regulating reservoir for irrigation until the irrigation is completed, or the water level in the regulating reservoir drops to 0, and proceed to step S07. Otherwise, proceed directly to step S07. S07. Use other external water sources for crop irrigation.

[0013] In one embodiment of this disclosure, the water dispatching method further includes a water storage sub-method; The water storage method includes: N01. Obtain the inflow and outflow of the reservoir, and when the inflow is greater than the outflow, obtain the reservoir water level. N02. When the water level in the reservoir is not lower than the first high warning water level, open the second diversion pipe and the liquid inlet pipe to store the water in the reservoir in the regulating tank, and monitor the water level in the regulating tank. N03. After the water level in the regulating reservoir is not lower than the second high warning water level, close the second diversion pipe and the inlet pipe, and discharge floodwater from the reservoir when the inflow rate is greater than the outflow rate.

[0014] In one embodiment of this disclosure, the water scheduling method further includes a water transfer sub-method, which comprises: P01. Detect the water level of the reservoir and the water level of the regulating reservoir. P02. When the water level in the reservoir is not lower than the irrigation water level and the water level in the regulating reservoir is lower than the second high warning water level, open the second diversion channel and the inlet pipe to transfer the water in the reservoir to the regulating reservoir until the water level in the regulating reservoir is not lower than the second high warning water level, or until the water level in the reservoir is not higher than the irrigation water level, then close the second diversion channel and the inlet pipe.

[0015] The beneficial effects of this disclosure include: 1. The water dispatching system and water dispatching method provided in this disclosure rely on the existing flood control capacity of existing reservoirs and add regulating reservoirs to increase storage capacity. Compared with the construction of additional waterways, this greatly reduces costs and shortens the construction period.

[0016] 2. The water dispatching system and water dispatching method provided in this disclosure utilize existing reservoirs, regulating ponds and existing irrigation systems to realize an integrated system of "flood control-water storage-irrigation-water purification (sedimentation)", thereby achieving optimized allocation of water resources in time (flood season → drought season) and space (reservoir → regulating pond → farmland), and improving irrigation water use efficiency by more than 30%.

[0017] 3. The water dispatching system and water dispatching method provided in this disclosure use a water storage tank as a buffer water storage unit, which can provide a stable water supply source for farmland irrigation, avoid irrigation interruption caused by insufficient reservoir capacity or fluctuations in water inflow, and supply water on demand according to plant type, accurately matching the crop water demand cycle.

[0018] 4. The addition of regulating reservoirs to existing reservoirs, in conjunction with the water allocation methods proposed in this disclosure, enhances flood and drought resistance, alleviates flood pressure during the flood season (reducing flood peaks by 20%-30%), ensures irrigation water supply during the drought season (improving water supply stability by 50%), and reduces the impact of drought and flood disasters on farmland. Furthermore, the regulating reservoirs have good sedimentation effects, providing good water quality for the irrigation system, ensuring the long-term use of the irrigation system, promoting the application of water-saving irrigation technologies, and facilitating agricultural modernization and sustainable water resource utilization.

[0019] 5. This disclosure retains the functions of the existing reservoirs and adds regulating reservoirs, achieving complementary advantages between existing facilities and new units. It provides a new path for upgrading existing reservoirs, avoids the high cost of rebuilding new reservoirs, and provides a replicable solution for the optimal allocation of water resources in hilly, mountainous and other complex terrain areas, thus contributing to high-quality agricultural development.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 This is a schematic diagram of the structure of a water dispatching system in one embodiment of the present disclosure.

[0023] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a water storage tank in one embodiment of the present disclosure.

[0024] Figure 3 This is a top view of the regulating reservoir in one embodiment of the present disclosure.

[0025] Figure 4 This is a flowchart illustrating the irrigation scheduling sub-method in one embodiment of the present disclosure.

[0026] Figure 5 This is a schematic flowchart of a water storage sub-method in one embodiment of the present disclosure.

[0027] Figure 6 This is a flowchart illustrating the water transfer method in one embodiment of the present disclosure.

[0028] Explanation of reference numerals in the attached figures: M1, Reservoir; A, Water Discharge Tower; B, Flood Discharge Structure; M2, Regulating Storage Pool; M3, Irrigation System; 1, First Diversion Pipe; 11, First Sub-Diversion Pipe; 12, Second Sub-Diversion Pipe; 2, Second Diversion Pipe; 3, Inlet Pipe; 4, Outlet Pipe; 5, Diversion Pipe; L1, Concrete Layer; L2, Mortar Cushion Layer; L3, Impermeable Geomembrane Layer; L4, Coarse Sand Cushion Layer; Q1, First Inclined Surface; Q2, Second Inclined Surface; 6, Inclined Plate; C1, Sedimentation Zone; C2, Water Storage Zone. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0030] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0031] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” etc. are used only as markers and are not a limitation on the number of objects.

[0032] Reservoirs, in the context of related technologies, possess natural flood interception capabilities due to their dam structures and river channel layouts, serving as crucial nodes in regional flood control systems. However, limitations such as reservoir siltation and aging facilities significantly reduce their actual effective storage capacity. While capable of intercepting floods, they struggle to store floodwaters for extended periods, resulting in limited flood regulation capacity during the flood season and insufficient water storage during the dry season to support large-scale irrigation. This creates a contradictory situation of "flood interception but water wastage during the flood season, and water shortage for irrigation during the dry season."

[0033] Specifically, (1) there is an imbalance in flood control and water storage functions. During the flood season, existing reservoirs only serve as independent interception units. Due to insufficient water storage capacity, excess floodwaters need to be directly discharged, exacerbating the flood discharge pressure on downstream rivers. During the dry season, there is a lack of supporting water storage units, making it impossible to utilize the floodwater intercepted during the flood season, resulting in unstable supply of irrigation water for farmland. This fragmented model of "light storage" neither fully utilizes the flood control value of existing reservoirs nor solves the regional water storage shortcomings.

[0034] (2) Inefficient utilization of flood resources. The existing "direct water intake-extensive irrigation" model has not established a cross-facility collaborative regulation and storage mechanism. During the flood season, after floodwaters are intercepted by existing reservoirs, they are forced to be abandoned due to the lack of subsequent water storage space. During the dry season, the system relies on groundwater or long-distance water diversion, resulting in a resource misallocation of "floodwater abandonment during the flood season and water shortage during the dry season." At the same time, the existing water conveyance system lacks precise regulation and control capabilities, and the leakage and loss rate is high, further aggravating the waste of water resources.

[0035] (3) High construction costs. If new reservoirs are built simply to meet irrigation needs, complex terrain areas such as hills and mountains will face problems such as difficulty in land acquisition, long construction period, and high project costs (according to industry statistics, the unit storage cost of newly built small and medium-sized reservoirs is 3-5 times higher than that of existing facilities). Moreover, independently constructed regulation and storage facilities lack systematic linkage with existing reservoirs, making it difficult to form a full-chain synergistic effect of "flood control-water storage-irrigation".

[0036] (4) Insufficient irrigation water quality. Currently, irrigation areas widely adopt efficient water-saving irrigation technologies such as drip irrigation. These technologies have extremely high requirements for irrigation water quality. Mud and impurities in the water can easily clog the small pipes of the irrigation system, leading to equipment failure and reduced irrigation efficiency.

[0037] To address the aforementioned problems, this disclosure provides a water dispatching system, see [link to relevant documentation]. Figure 1 This includes reservoir M1 and irrigation system M3.

[0038] In one embodiment of this disclosure, reservoir M1 can be an existing reservoir, see [link to relevant documentation]. Figure 1Reservoir M1 has a water discharge tower A and a flood discharge structure B. Water discharge tower A controls the water level of reservoir M1. When the water level is too high, excess water can be discharged through the gates in water discharge tower A, thus maintaining the water level within a certain range. For example, maintaining the water level at the irrigation level helps ensure the normal operation of reservoir M1 and avoids dangerous situations such as dam overflow caused by excessively high water levels. Additionally, when there is irrigation demand downstream of reservoir M1, water discharge tower A can release water from reservoir M1 downstream through the gates, providing necessary irrigation water for crops and ensuring smooth agricultural production. Flood discharge structure B is mainly used to discharge floodwater or waterlogging exceeding the storage or handling capacity of reservoir M1, and to release water stored in reservoir M1 for safety protection or inspection and maintenance. Commonly used water discharge structures include spillway dams, gates, and flushing gates for low-head water conservancy projects; and overflow dams, spillways, spillways, culverts, and tunnels for high-head water conservancy projects.

[0039] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 There are multiple irrigation systems M3, and each irrigation system M3 corresponds to at least one external farmland. In one example, the irrigation system M3 can implement various irrigation methods such as sprinkler irrigation and drip irrigation.

[0040] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The water tower A has a first diversion pipe 1, which is used to drain water from the reservoir M1.

[0041] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1 The first diversion pipe 1, located away from the water tower A, is connected to each irrigation system M3. This forms the first path for directly utilizing the water in reservoir M1 for farmland irrigation.

[0042] In this embodiment, see Figure 1 The first diversion pipe 1 includes a first sub-diversion pipe 11 and multiple second sub-diversion pipes 12, each second sub-diversion pipe 12 corresponding to a specific irrigation system M3. One end of the first sub-diversion pipe 11 is connected to the water tower A, and the other end is connected to one end of each of the second sub-diversion pipes 12. The other end of each second sub-diversion pipe 12 is connected to its corresponding irrigation system M3.

[0043] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 1The water dispatching system also includes a storage tank M2, and the water tower A includes a second diversion pipe 2. The storage tank M2 has an inlet pipe 3 and an outlet pipe 4. The second diversion pipe 2 is connected to the inlet pipe 3, and the outlet pipe 4 is connected to each irrigation system M3. In this disclosure, the storage tank M2 is equivalent to the external storage capacity of the reservoir M1, increasing the water storage volume. Thus, water that cannot be stored in the reservoir M1 can be dispatched and stored in the storage tank M2, forming a second irrigation path that utilizes the water in the storage tank M2 for farmland irrigation when needed. Under this structure, water resources are not wasted during the flood season (flood season water is stored in the storage tank M2), and there is no shortage of water for irrigation during the dry season (the water in the storage tank M2 is used for farmland irrigation).

[0044] In this disclosure, the regulating reservoir M2 is configured to divert water exceeding the capacity of reservoir M1 during the flood season, which cannot be stored in reservoir M1, to the regulating reservoir M2 for storage. This not only preserves water resources but also allows the preserved water resources to be used for farmland irrigation during the dry season. In addition, this disclosure establishes two irrigation paths: one is to use the water in reservoir M1 for direct farmland irrigation when the water in reservoir M1 is sufficient, and the other is to use the water pre-stored in the regulating reservoir M2 for farmland irrigation when the water in reservoir M1 is insufficient. Through the coordination of the two paths, irrigation of farmland is guaranteed throughout the crop growth cycle.

[0045] In one implementation, see Figure 1 In one embodiment, the number of water storage tanks M2 is one. In another embodiment, the number of water storage tanks M2 is multiple, and the inlet pipe 3 of each water storage tank M2 is connected to the second diversion pipe 2, and the outlet pipe 4 of one water storage tank M2 is connected to at least one irrigation system M3. In this way, the water storage capacity can be further increased.

[0046] In one example, each water storage tank M2 is configured in a one-to-one correspondence with each irrigation system M3. Each irrigation system M3 is connected to the outlet pipe 4 of one of the water storage tanks M2, and the water storage tanks M2 are connected to each other through guide pipes 5. In this way, the water allocation among the water storage tanks M2 can be achieved by utilizing the connections between them.

[0047] In this embodiment, the size and number of regulating reservoirs M2 can be determined comprehensively based on factors such as irrigation area, plant water requirements, and flood volume, and this disclosure does not impose any restrictions.

[0048] In one embodiment of this disclosure, water pumps (not shown in the figure) can be installed on the first diversion pipe 1, the second diversion pipe 2, the inlet pipe 3, and the outlet pipe 4 to ensure smooth water flow.

[0049] In this embodiment, see Figure 2 and Figure 3The regulating reservoir M2 includes a first dam slope D1, a dam crest D2, a second dam slope D3, and a reservoir bottom D4 connected in sequence. It can be understood that the second dam slope D3 surrounds the reservoir bottom D4, the dam crest D2 surrounds the second dam slope D3, and the first dam slope D1 surrounds the dam crest D2. The dam crest D2 is the highest point of the regulating reservoir M2, and both the first dam slope D1 and the second dam slope D3 are sloping surfaces.

[0050] In this embodiment, the regulating tank M2 has a concrete layer L1, a mortar cushion layer L2, an impermeable geomembrane layer L3, and a coarse sand cushion layer L4 stacked sequentially from top to bottom. The coarse sand cushion layer L4 provides a flat support surface for the impermeable geomembrane layer L3 and acts as a drainage body under the membrane, draining water that has seeped under the membrane. The impermeable geomembrane layer L3 prevents water leakage and waste. The mortar cushion layer L2 protects the impermeable geomembrane layer L3 from damage caused by the construction of the upper concrete layer L1. The concrete layer L1 protects the impermeable geomembrane layer L3 from damage caused by external forces such as floating objects in the tank. In this embodiment, the thickness of the concrete layer L1 can be 20 cm, the thickness of the mortar cushion layer L2 can be 5 cm, and the thickness of the coarse sand cushion layer L4 can be 20 cm. Of course, in other embodiments, the thicknesses of the concrete layer L1, the mortar cushion layer L2, and the coarse sand cushion layer L4 can be set according to requirements, and this disclosure does not limit them. Among them, concrete layer L1, mortar cushion layer L2, impermeable geomembrane layer L3 and coarse sand cushion layer L4 are laid to form the second dam slope D3 and the bottom D4 of the storage tank M2. The impermeable geomembrane layer L3 is used to form an integral impermeable layer, so that the storage tank M2 can achieve full reservoir basin geomembrane impermeability.

[0051] In this embodiment, the dam crest D2 is 4m to 6m wide, the first dam slope D1 has a slope ratio of 1:1.5 to 1:3, and the second dam slope D3 has a slope ratio of 1:1.5 to 2.5.

[0052] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 2 The regulating reservoir M2 has a sedimentation zone C1 and a water storage zone C2, with the water storage zone C2 located above the sedimentation zone C1. In the sedimentation zone C1, the regulating reservoir M2 has a first inclined surface Q1, and in the water storage zone C2, the regulating reservoir M2 has a second inclined surface Q2. The first inclined surface Q1 and the second inclined surface Q2 are connected, and the angle between the first inclined surface Q1 and the bottom D4 of the regulating reservoir M2 is smaller than the angle between the second inclined surface Q2 and the bottom D4 of the regulating reservoir M2. In this disclosure, the regulating reservoir M2 is divided into a sedimentation zone C1 and a water storage zone C2. When water is diverted from the reservoir M1 to the regulating reservoir M2, impurities and suspended solids in the water can be naturally settled in the sedimentation zone C1, improving the water quality of the water storage zone C2. This ensures that the water quality meets the requirements of the irrigation system M3, for example, a sediment content ≤50mg / L. Using water from the water storage zone C2 to irrigate farmland through the irrigation system M3 will not cause equipment damage and will extend the service life of the equipment.

[0053] In one embodiment of this disclosure, the inlet pipe 3 and the outlet pipe 4 are located in the water storage area C2 (in other words, both the inlet pipe 3 and the outlet pipe 4 are connected to the water storage area C2). The water in the reservoir M1 enters the regulating tank M2 through the inlet pipe 3 for storage and sedimentation, and is dispatched to the irrigation system M3 through the outlet pipe 4 for farmland irrigation.

[0054] In one embodiment of this disclosure, the sedimentation zone C1 and the regulating tank M2 have multiple inclined plates 6, with the angle between the inclined plates 6 and the bottom D4 of the regulating tank M2 being 50-70 degrees. For example, the angles between the inclined plates 6 and the bottom D4 of the regulating tank M2 are 50 degrees, 55 degrees, 60 degrees, 65 degrees, and 70 degrees. In this disclosure, the inclined plates 6 can significantly increase the sedimentation area, shorten the settling distance of impurities and suspended solids, significantly shorten the sedimentation time of impurities and suspended solids, and promote particle aggregation. Impurities and suspended solids settle onto the surface of the inclined plates 6 under gravity. Larger particles settle directly to the bottom D4 and accumulate; smaller particles gradually accumulate on the surface of the inclined plates 6. When they accumulate to a certain extent, they slide down the inclined plates 6 to the bottom D4 under gravity and accumulate, thus promoting sedimentation efficiency and reducing the risk of blockage in the subsequent irrigation system M3.

[0055] In one embodiment of this disclosure, the inclined plate 6 can be parallel to the first inclined surface Q1. This allows for a more uniform distribution of the sedimentation area in the sedimentation zone C1, facilitating faster sedimentation.

[0056] The regulating reservoir M2 in this disclosure utilizes natural sedimentation to replace water purification facilities, thus solving the need for clean water in the irrigation system M3 at a low cost and reducing the problem of silt clogging the pipes.

[0057] This disclosure also provides a water scheduling method, including an irrigation scheduling sub-method.

[0058] Among them, see Figure 4 The irrigation scheduling sub-methods include: S01. Label the plant types (crop types) planted in each farmland and obtain the irrigation parameters for each plant type. Irrigation parameters include the pH value. Different plants have different pH requirements for irrigation water. For example, for cereals such as wheat, corn, and rice, the suitable pH value is between 6.0 and 7.5; for barley, it is between 6.0 and 7.8; and for millet, it is between 6.0 and 7.0. For cash crops such as cotton, the suitable pH value is between 6.0 and 8.0; and for rapeseed, sunflower, and sugarcane, it is between 6.0 and 7.5. Soybeans thrive at a pH between 6.5 and 7.0; fruits such as apples (5.94-6.8), pears (5.6-7.2), peaches (5.2-6.8), grapes (5.8-7.5), citrus fruits (5.5-6.5), figs (7.2-7.5), and cherries (6.5-7.5); vegetables such as potatoes (5.0-6.0) and watermelons (5.0-6.8) are also suitable. S02. Obtain soil parameters and determine the types of plants requiring irrigation based on these parameters. Soil parameters include soil moisture. Different plants at different stages may have insufficient water requirements. Soil moisture can be used to determine whether the current stage meets the plant's needs. For example, for wheat, soil moisture should be 70%–80% during sowing and seedling emergence, 65%–75% during overwintering, 65%–75% during greening, 70%–80% during jointing, 72%–82% during flowering, 65%–72% during the early grain-filling stage, and no further irrigation is needed during the later grain-filling stage. In this embodiment, in step S02, meteorological parameters can also be obtained, including air temperature. The irrigation amount when the air temperature is higher should be greater than the irrigation amount when the air temperature is lower. S03. Obtain the water level of reservoir M1. If the water level is not lower than the irrigation water level, proceed to step S04; otherwise, proceed to step S06. Reservoir M1 includes the minimum water level, the irrigation water level, and the first high warning water level. Specifically, S031, obtain the water level of reservoir M1; S032. Determine the difference between the reservoir water level and the irrigation water level; if the reservoir water level is greater than or equal to the irrigation water level, proceed to step S04; otherwise, if the reservoir water level is less than the irrigation water level, proceed to step S06. S04. Obtain the first water quality parameter of reservoir M1, which includes the pH value of the reservoir; if the first water quality parameter matches the irrigation parameter, open the first diversion pipe 1, use the water in reservoir M1 for irrigation, and execute step S05; otherwise, execute step S06. Specifically: S041, Obtain the first water quality parameters of reservoir M1; S042. Determine whether the first water quality parameter and the irrigation parameter are compatible. If the first water quality parameter and the irrigation parameter are compatible, open the first diversion pipe 1, use the water in reservoir M1 for irrigation, and execute step S05. Otherwise, if the first water quality parameter and the irrigation parameter are not compatible, execute step S06. S05. If irrigation has not ended and the water level of reservoir M1 is below the minimum water level, proceed to step S06. Specifically: S051, determine whether irrigation has ended; if irrigation has ended, the entire irrigation scheduling sub-method ends; if irrigation has not ended, execute step S052. S052. Determine whether the water level of reservoir M1 is greater than or equal to the minimum water level. If the water level is greater than or equal to the minimum water level, keep the first diversion pipe open and continue to use the water in the reservoir for irrigation. If the water level is less than the minimum water level, proceed to step S06. S06. Obtain the water level of the regulating reservoir M2. If the water level is greater than 0, obtain the second water quality parameter of the regulating reservoir M2, which includes the pH value of the regulating reservoir. If the second water quality parameter matches the irrigation parameter, open the outlet pipe 4 and use the water from the regulating reservoir M2 for irrigation until the irrigation is completed, or the water level in the regulating reservoir M2 drops to 0, and proceed to step S07. Otherwise, proceed directly to step S07. Specifically: S061, Obtain the water level of the regulating reservoir M2; S062. Determine whether the water level of the regulating reservoir is greater than 0. If the water level of the regulating reservoir is greater than 0, obtain the second water quality parameter of the regulating reservoir M2 and execute step S063. Otherwise, execute step S07. S063. Determine whether the second water quality parameter is compatible with the irrigation parameter; if the second water quality parameter is compatible with the irrigation parameter, open the outlet pipe 4 and use the water from the storage tank M2 for irrigation; and execute step S064; otherwise, if the second water quality parameter is not compatible with the irrigation parameter, execute step S07. S064. Determine if irrigation has ended. If irrigation has ended, the entire irrigation scheduling sub-method ends; if irrigation has not ended, return to step S061. S07. Use other external water sources for plant irrigation.

[0059] The irrigation scheduling sub-method disclosed herein can irrigate farmland during the dry season. When farmland needs water, it controls the amount and flow rate of irrigation based on the crop water requirements, soil moisture, and meteorological data of the irrigated area, and uses the irrigation system M3 to achieve targeted irrigation through efficient water-saving facilities such as drip irrigation and sprinkler irrigation.

[0060] In addition, this disclosure achieves precise irrigation of farmland by monitoring plant water requirements, the water level of reservoir M1, the pH value of reservoir M1, the water level of regulating pond M2, and the pH value of regulating pond M2, and adjusting the irrigation path.

[0061] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 5 Water management methods also include water storage sub-methods; Water storage methods include: N01. Obtain the inflow and outflow of reservoir M1. When the inflow is greater than the outflow, obtain the water level of reservoir M1. Specifically: N011, Obtain the inflow and outflow of reservoir M1; N012. Determine the relationship between the inbound flow and the outbound flow; if the inbound flow > the outbound flow, proceed to step N013; otherwise, if the inbound flow ≤ the outbound flow, return to step N011. N013, Obtain the reservoir water level; N02. When the water level in the reservoir is not lower than the first high warning level, open the second diversion pipe 2 and the liquid inlet pipe 3 to store the water in the reservoir M1 in the regulating tank M2, and monitor the water level in the regulating tank M2. Specifically: N021, determine the relationship between the reservoir water level and the first high warning water level. If the reservoir water level is greater than or equal to the first high warning water level, open the second diversion pipe 2 and the liquid inlet pipe 3 to store the water in the reservoir M1 in the regulating tank M2, and monitor the regulating tank water level of the regulating tank M2; otherwise, if the reservoir water level is less than the first high warning water level, return to step N011. N03. After the water level in the regulating reservoir is not lower than the second highest warning level, close the second diversion pipe 2 and the inlet pipe 3, and discharge water from reservoir M1 when the inflow is greater than the outflow.

[0062] Specifically: Determine the relationship between the water level of the regulating reservoir and the second highest warning water level. If the water level of the regulating reservoir is greater than or equal to the second highest warning water level, close the second diversion pipe 2 and the inlet pipe 3, and obtain the inflow and outflow rates again. If the inflow rate is less than or equal to the outflow rate, no action is required. Otherwise, if the inflow rate is greater than the outflow rate, the reservoir will discharge floodwater. If the water level in the regulating reservoir is less than the second highest warning level, then continue to open the second diversion pipe 2 and the liquid inlet pipe 3 to store the water in reservoir M1 in regulating reservoir M2 until the water level in the regulating reservoir is greater than or equal to the second highest warning level.

[0063] In this implementation, when a flood occurs and the inflow exceeds the outflow, a water storage method can be used to manage the water supply. This can alleviate the pressure downstream and ensure sufficient irrigation water for farmland.

[0064] The water storage sub-method disclosed herein can, during the flood season, utilize the flood control advantage of Reservoir M1 to intercept upstream water, forming a temporary flood storage area, mitigating flood peak pressure, and initially regulating flood volume. Simultaneously, during and after the arrival of floods, water stored in Reservoir M1 is diverted to regulating reservoir M2 via its discharge tower A to store irrigation water for farmland, while freeing up reservoir M1's capacity to cope with subsequent floods. When the inflow flood peak exceeds the existing regulating capacity of Reservoir M1, such as when the water level reaches the highest warning level and the inflow is significantly greater than the outflow, the flood discharge structure B of Reservoir M1 is activated for emergency flood discharge to ensure the flood control safety of Reservoir M1.

[0065] In this disclosure, the coordinated operation of "flood control by reservoir M1 - water storage by regulating pond M2 - precision irrigation" is achieved through the cooperation of irrigation scheduling sub-method and water storage sub-method.

[0066] This disclosure utilizes Reservoir M1 to intercept and initially regulate floodwaters during the flood season, and directs excess floodwater to Storage Pond M2 for storage. In Storage Pond M2, sediment and other impurities are removed from the water through sedimentation. This not only resolves the bottleneck of insufficient flood storage capacity of the existing Reservoir M1, but also provides a clean water source for the irrigation system M3, and avoids the high investment required for constructing new large-scale water storage and purification facilities. Through functional division and facility synergy, this disclosure achieves a deep integration of flood control safety, efficient irrigation, and water quality assurance, providing an innovative technological path for activating existing water conservancy assets and optimizing regional water resource allocation.

[0067] In one embodiment of this disclosure, see [link to relevant documentation]. Figure 6 The water dispatching method also includes a water transfer sub-method, which includes: P01. Detect the water level of reservoir M1 and the water level of regulating reservoir M2; P02. When the reservoir water level is not lower than the irrigation water level and the water level of the regulating reservoir M2 is lower than the second highest warning water level, open the second diversion channel and the liquid inlet pipe 3 to transfer the water in the reservoir M1 to the regulating reservoir M2 until the water level of the regulating reservoir is not lower than the second highest warning water level, or until the reservoir water level is not higher than the irrigation water level, then close the second diversion channel and the liquid inlet pipe 3.

[0068] Specifically: P021, determine the relationship between the reservoir water level and the irrigation water level; if the reservoir water level is greater than or equal to the irrigation water level, proceed to P022; otherwise, end. P022. Determine the relationship between the water level of the regulating reservoir M2 and the second highest warning water level. If the water level of the regulating reservoir is greater than or equal to the second highest warning water level, then the process ends and no water dispatch is performed. Otherwise, if the water level of the regulating reservoir is less than the second highest warning water level, open the second diversion channel and the liquid inlet pipe 3 to transfer the water in reservoir M1 to the regulating reservoir M2, and execute P023. P023. If either the water level in the regulating reservoir is ≤ the second highest warning level, or the water level in the reservoir is ≥ the irrigation level, then the second diversion channel and the inlet pipe 3 will be closed, and the water dispatching will be terminated.

[0069] The water dispatching method disclosed herein is a highly efficient water resource management method that coordinates the irrigation of existing reservoir M1 and regulating pond M2. Reservoir M1 intercepts and temporarily regulates river floodwaters, and the water is then transported to regulating pond M2 for storage via the water release tower A of reservoir M1. When farmland requires water, it is precisely delivered to the corresponding farmland, achieving efficient irrigation. This system fully integrates the flood interception functions of existing reservoir M1 and the water storage functions of regulating pond M2, forming a closed-loop process of "flood interception - temporary dispatching of impurities and suspended solids sedimentation - directional delivery - precision irrigation." This enhances regional flood control and drought resistance capabilities and irrigation efficiency. It not only avoids redundant investment in new water conservancy facilities, reducing construction costs, but also improves the flexibility and reliability of irrigation system M3 through scientific dispatching and precise water delivery, reducing water waste and ensuring stable water supply and water quality safety for farmland. Simultaneously, it optimizes regional water resource allocation, enhances flood control and drought resistance capabilities, solves the existing problem of "emphasizing interception while neglecting storage," and achieves coordinated development of flood control safety and agricultural production, providing solid water conservancy support.

[0070] In this disclosure, the existing reservoir M1 is used as a front-end barrier to intercept floods, reducing the pressure on downstream river channels; the regulating reservoir M2 receives floodwaters, freeing up storage space in reservoir M1 to intercept the next flood. Furthermore, floodwaters during the flood season are converted into irrigation water for the dry season. Through "interception – transportation and storage – precision irrigation," the contradiction between "flood abandonment" and "water shortage" in related technologies is resolved, improving the utilization rate of flood resources.

[0071] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A water scheduling system characterized by, include: The reservoir (M1) has a flood discharge structure (B) and a water release tower (A); the water release tower (A) has a first diversion pipe (1) and a second diversion pipe (2); Storage tank (M2), the storage tank (M2) has an inlet pipe (3) and an outlet pipe (4), and the second guide pipe (2) is connected to the inlet pipe (3); Multiple irrigation systems (M3), each irrigation system (M3) corresponds to at least one farmland; each irrigation system (M3) is connected to the outlet pipe (4) of the regulating tank (M2); the end of the first diversion pipe (1) away from the water tower (A) is connected to each irrigation system (M3).

2. The water dispatching system according to claim 1, characterized in that, The number of the regulating reservoirs (M2) is multiple; The inlet pipe (3) of each of the aforementioned storage tanks (M2) is connected to the second diversion pipe (2); The outlet pipe (4) of one of the storage tanks (M2) is connected to at least one of the irrigation systems (M3).

3. The water dispatching system according to claim 2, characterized in that, Each irrigation system (M3) is set up in a one-to-one correspondence with each storage tank (M2). Each irrigation system (M3) is connected to the outlet pipe (4) of the corresponding storage tank (M2), and each storage tank (M2) is connected to each other through a guide pipe (5).

4. The water dispatching system according to any one of claims 1-3, characterized in that, The regulating reservoir (M2) has a concrete layer (L1), a mortar cushion layer (L2), an impermeable geomembrane layer (L3), and a coarse sand cushion layer (L4) stacked from top to bottom.

5. The water dispatching system according to claim 4, characterized in that, The regulating tank (M2) has a sedimentation zone (C1) and a water storage zone (C2), with the water storage zone (C2) located above the sedimentation zone (C1); In the sedimentation zone (C1), the regulating tank (M2) has a first inclined surface (Q1), and in the water storage zone (C2), the regulating tank (M2) has a second inclined surface (Q2). The first inclined surface (Q1) is connected to the second inclined surface (Q2), and the angle between the first inclined surface (Q1) and the bottom (D4) of the regulating tank (M2) is smaller than the angle between the second inclined surface (Q2) and the bottom (D4) of the regulating tank (M2). The inlet pipe (3) and the outlet pipe (4) are both connected to the water storage zone (C2).

6. The water dispatching system according to claim 5, characterized in that, In the sedimentation zone (C1), the regulating tank (M2) has a plurality of inclined plates (6), and the angle between the inclined plates (6) and the bottom (D4) of the regulating tank (M2) is 50 degrees to 70 degrees.

7. The water dispatching system according to claim 6, characterized in that, The angle between the inclined plate (6) and the bottom (D4) of the storage tank (M2) is 60 degrees.

8. A water scheduling method for a water scheduling system according to any one of claims 1-7, characterized in that, Includes irrigation scheduling sub-methods; The irrigation scheduling sub-method includes: S01. Mark the types of plants planted in each farmland and obtain irrigation parameters for each plant type; the irrigation parameters include irrigation pH value; S02. Obtain soil parameters and determine the types of plants that need irrigation based on the soil parameters; therefore, soil parameters include soil moisture. S03. Obtain the water level of the reservoir (M1). If the water level of the reservoir is not lower than the irrigation water level, proceed to step S04; otherwise, proceed to step S06. S04. Obtain the first water quality parameter of the reservoir (M1), the first water quality parameter including the pH value of the reservoir; if the first water quality parameter is compatible with the irrigation parameter, open the first diversion pipe (1) and use the water in the reservoir (M1) for irrigation, and execute step S05; otherwise, execute step S06. S05. If irrigation has not ended and the water level of the reservoir (M1) is lower than the minimum water level, proceed to step S06. S06. Obtain the water level of the regulating reservoir (M2). If the water level is greater than 0, obtain the second water quality parameter of the regulating reservoir (M2), which includes the pH value of the regulating reservoir. If the second water quality parameter matches the irrigation parameter, open the outlet pipe (4) and use the water from the regulating reservoir (M2) for irrigation until the irrigation is completed, or the water level in the regulating reservoir (M2) drops to 0, and execute step S07. Otherwise, directly execute step S07. S07. Use other external water sources for crop irrigation.

9. The water dispatching method of the water dispatching system according to claim 8, characterized in that, The water dispatching method also includes a water storage sub-method; The water storage method includes: N01. Obtain the inflow and outflow of the reservoir (M1), and when the inflow is greater than the outflow, obtain the water level of the reservoir (M1). N02. When the water level in the reservoir is not lower than the first high warning level, open the second diversion pipe (2) and the liquid inlet pipe (3) to store the water in the reservoir (M1) in the regulating tank (M2) and monitor the water level of the regulating tank (M2); N03. After the water level in the storage tank is not lower than the second high warning water level, close the second diversion pipe (2) and the liquid inlet pipe (3), and discharge the reservoir (M1) when the inflow is greater than the outflow.

10. The water dispatching method of the water dispatching system according to claim 8 or 9, characterized in that, The water scheduling method further includes a water transfer sub-method, which includes: P01. Detect the water level of the reservoir (M1) and the water level of the regulating reservoir (M2); P02. When the water level in the reservoir is not lower than the irrigation water level and the water level in the regulating reservoir (M2) is lower than the second high warning water level, open the second diversion channel and the liquid inlet pipe (3) to transfer the water in the reservoir (M1) to the regulating reservoir (M2) until the water level in the regulating reservoir is not lower than the second high warning water level, or until the water level in the reservoir is not higher than the irrigation water level, and then close the second diversion channel and the liquid inlet pipe (3).

Images