Urban multi-reservoir water source water distribution method and system based on comprehensive evaluation information

Abstract

The invention relates to the technical field of water source distribution, in particular to an urban multi-reservoir water source water quantity distribution method and system based on comprehensive evaluation information, and the method comprises the steps: obtaining the water supply priority characteristics of each reservoir in a target urban water supply network, and determining a core water supply region and a peripheral buffer region according to the water supply priority characteristics; determining a real-time water storage state sequence of each target reservoir in the core water supply area in the first scheduling period; generating an initial water source distribution list of the target city in the first scheduling period based on the real-time water storage state sequence; determining a reserve capacity change track of each reserve reservoir in the peripheral buffer area in the first scheduling period; and based on the reserve capacity change track, counting the total amount of deployable water resources of the target city in the first scheduling period. By quickly starting an emergency water taking mechanism, the adjustable water resources are effectively integrated into the target water source distribution scheme, so that the coping capacity of cities to sudden water crisis is improved.

Description

Technical Field

[0001] This invention relates to the field of water source allocation technology, specifically to a method and system for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information. Background Technology

[0002] Currently, traditional methods typically rely on fixed water supply plans and strategies, making it difficult to flexibly adjust to real-time water storage status and water demand. This hinders rapid response during water shortages or emergencies, impacting water supply stability. Furthermore, traditional methods often lack comprehensive analysis of historical and real-time data, leading to information asymmetry in decision-making. This can result in irrational resource allocation and increase the risk of water waste.

[0003] Furthermore, in the face of sudden water crises, traditional methods lack effective emergency water intake mechanisms and can only rely on fixed backup water sources, failing to make full use of available water resources, resulting in prolonged response time and increased losses. Moreover, due to the lack of assessment of the water supply priority characteristics of different reservoirs, traditional methods may not be able to fully utilize the maximum water supply capacity of each reservoir, resulting in low overall water supply efficiency. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a method for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information, comprising: Obtain the water supply priority characteristics of each reservoir in the target city's water supply network, and determine the core water supply area and the outer buffer zone based on the water supply priority characteristics; Determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle; Based on the real-time water storage status sequence, an initial water source allocation list for the target city during the first scheduling cycle is generated; the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone is determined during the first scheduling cycle. Based on the trajectory of reserve capacity changes, the total amount of available water resources for the target city during the first dispatch cycle is calculated. The target water allocation plan for the target city in the first scheduling cycle is determined based on the initial water source allocation list and the total amount of available water resources.

[0005] Preferably, based on the real-time water storage status sequence, an initial water source allocation list for the target city during the first scheduling cycle is generated, including: Determine whether the current liquid level of each target reservoir in the real-time water storage status sequence is within the normal liquid level zone of the core water supply area, and at the same time determine whether the rate of change is within the preset stable range; The number of target reservoirs whose current liquid level is within the normal liquid level zone and whose rate of change is within the stable range in the real-time water storage status sequence is counted, and these are used as the first allocation of reservoirs. Determine the total design capacity of all target reservoirs in the core water supply area during the first scheduling cycle; Calculate the first ratio of the number of first-allocated reservoirs to the total designed reservoir capacity; Based on the first ratio, determine the initial water source allocation list for the target city within the first scheduling cycle.

[0006] Preferably, based on the first ratio, an initial water resource allocation list for the target city within the first scheduling cycle is determined, including: The second scheduling period before the first scheduling period, the second scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the third scheduling period. Determine the historical water supply continuity index for each reservoir that needs adjustment during the third scheduling cycle; Determine whether the historical water supply continuity index of each reservoir requiring adjustment is greater than the preset continuity standard, and at the same time determine whether the current water level is above the low warning line of the core water supply area; The number of reservoirs requiring adjustment that have a historical water supply continuity index greater than the continuity standard and whose current water level is above the low warning line will be used as the second allocation of reservoirs. Add the allocated water volume corresponding to the number of the first allocated reservoirs to the allocated water volume corresponding to the number of the second allocated reservoirs to obtain the total allocated water volume in the initial water source allocation list; If the first ratio is not less than the preset reservoir capacity threshold, then the allocated water volume corresponding to the first allocated reservoir quantity will be used as the total allocated water volume in the initial water source allocation list.

[0007] Preferably, based on the trajectory of reserve capacity changes, the total amount of available water resources for the target city during the first dispatch cycle is calculated, including: Determine whether the initial liquid level of the reserve capacity change trajectory of each backup reservoir is above the preset safe liquid level line, and at the same time determine whether the termination liquid level is on the lower limit boundary line of the outer buffer zone. The number of standby reservoirs whose initial liquid level is above the safety level line and whose final liquid level is on the lower limit boundary line of the outer buffer zone is counted as the first available quantity. Determine the total reserve capacity of all standby reservoirs within the first scheduling cycle; calculate the second ratio of the first available quantity to the total reserve capacity; If the second ratio is less than the preset allocation threshold, then the standby reservoirs whose starting liquid level is not above the safe liquid level line and / or whose ending liquid level is not above the lower limit boundary line of the outer buffer zone will be marked as reservoirs to be checked.

[0008] Preferably, based on the trajectory of reserve capacity changes, the total amount of adjustable water resources for the target city during the first dispatch cycle also includes: The fourth scheduling period before the first scheduling period, the fourth scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the fifth scheduling period. Determine the historical reserve capacity fluctuation curve of each reservoir to be checked during the fifth scheduling cycle; determine whether the peak value of the historical reserve capacity fluctuation curve of each reservoir to be checked is below the upper limit boundary of the outer buffer zone, and at the same time determine whether the valley value is above the safe liquid level line. The number of reservoirs to be verified whose peak value of the historical reserve capacity fluctuation curve is below the upper limit boundary of the buffer zone and whose trough value is above the safe liquid level line is used as the second available quantity. The first and second adjustable quantities are added together to obtain the total adjustable water resources; if the second ratio is not less than the adjustment threshold, the first adjustable quantity is taken as the total adjustable water resources.

[0009] Preferably, the target water allocation scheme for the target city in the first scheduling cycle is determined based on the initial water allocation list and the total amount of available water resources, including: Compare the total allocated amount in the initial water allocation list with the total available water resources, and calculate the gap between the total allocated amount and the total available water resources.

[0010] Preferably, determining the target water allocation scheme for the target city in the first scheduling cycle based on the initial water source allocation list and the total amount of available water resources further includes: If the total allocated amount exceeds the total available water resources and the shortfall exceeds the preset available water resources threshold, an emergency water intake command will be activated in the outer buffer zone to include all available water resources in the target water source allocation plan. If the total allocated amount is greater than the total available water resources and the gap is not greater than the preset available water resources threshold, then the non-priority users in the initial water source allocation list are reduced to obtain the target water source allocation scheme.

[0011] Preferably, determining the target water allocation scheme for the target city in the first scheduling cycle based on the initial water source allocation list and the total amount of available water resources further includes: If the total available water resources exceed the total allocated water resources, and the difference between the two exceeds a preset allocation difference threshold, the excess water will be stored in the virtual regulating reservoir of the core water supply area as a supplement to the target water source allocation plan. If the total available water resources are greater than the total allocated water resources, and the difference between the two is not greater than the preset allocation difference threshold, then the initial water source allocation list is maintained unchanged as the target water source allocation scheme.

[0012] Preferably, the water supply priority characteristics of each reservoir in the target city's water supply network are obtained, including: Based on the location information of each area of ​​the target city, calculate the distance information between each reservoir and each area of ​​the target city; Obtain water quality test reports for each reservoir and determine the water quality level of each reservoir; Analyze the historical water supply records of each reservoir to determine the water supply stability information of each reservoir; Based on current available water quantity, distance, water quality level, and water supply stability information, the water supply priority information of each reservoir to each area of ​​the target city is determined.

[0013] A city-wide multi-reservoir water source allocation system based on comprehensive evaluation information, applicable to the aforementioned city-wide multi-reservoir water source allocation method based on comprehensive evaluation information, includes: The water source division unit is used to obtain the water supply priority characteristics of each reservoir in the target city's water supply network, and to determine the core water supply area and the outer buffer zone based on the water supply priority characteristics; The data acquisition unit is used to determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle. The first allocation unit is used to generate an initial water source allocation list for the target city within the first scheduling cycle based on the real-time water storage status sequence; and to determine the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone within the first scheduling cycle. The total quantity statistics unit is used to calculate the total amount of available water resources for a target city during the first scheduling cycle based on the trajectory of changes in reserve capacity. The second allocation unit is used to determine the target water allocation scheme for the target city in the first scheduling cycle based on the initial water allocation list and the total amount of adjustable water resources.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) By acquiring the water supply priority characteristics of each reservoir and making dynamic adjustments based on the real-time water storage status and water demand, this invention can ensure the water supply stability of the core water supply area, improve the water supply efficiency of the entire city, and when faced with water shortages or emergencies, by quickly activating the emergency water intake mechanism, the available water resources can be effectively integrated into the target water source allocation scheme, thereby enhancing the city's ability to respond to sudden water crises. (2) By comprehensively analyzing data on historical water supply continuity, reserve capacity fluctuations and water quality, this invention can provide city managers with more scientific decision support, reduce resource waste caused by information asymmetry, and through reasonable water allocation and emergency measures, this method helps to achieve sustainable use of water resources, reduce water waste, protect the environment and promote the sustainable development goals of cities. Attached Figure Description

[0015] Figure 1 This is a schematic flowchart of the overall method in one embodiment of the present invention; Figure 2 This is a schematic diagram of the overall system architecture in one embodiment of the present invention.

[0016] In the diagram: 1. Water source allocation unit; 2. Data acquisition unit; 3. First allocation unit; 4. Total quantity statistics unit; 5. Second allocation unit. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1, please refer to Figure 1 The present invention provides a technical solution: a method for allocating water resources from multiple reservoirs in a city based on comprehensive evaluation information, comprising: S1, obtaining the water supply priority characteristics of each reservoir in the target city's water supply network, and determining the core water supply area and the outer buffer zone based on the water supply priority characteristics; S2. Determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle; S3. Based on the real-time water storage status sequence, generate the initial water source allocation list for the target city in the first scheduling cycle; determine the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone in the first scheduling cycle. S4. Based on the trajectory of reserve capacity changes, calculate the total amount of available water resources for the target city during the first scheduling cycle. S5. Based on the initial water source allocation list and the total amount of available water resources, determine the target water source allocation plan for the target city in the first scheduling cycle.

[0019] It should be noted that the assessment involves the water supply priority characteristics of each reservoir in the target city's water supply network. This includes determining which areas are core water supply areas and which are peripheral buffer zones. Core water supply areas are usually the city's main water use areas, such as commercial centers and densely populated areas, while peripheral buffer zones are relatively distant areas, which may be low-density residential areas or industrial areas. For each reservoir located in the core water supply area, monitor its real-time water storage status; this includes recording changes in the water volume within the reservoir in order to understand the current water supply capacity of each reservoir; Based on this real-time water storage status data, an initial water source allocation list is generated. This list will show the amount of water that each reservoir can provide based on its water storage status during the first scheduling cycle. At the same time, it is also necessary to monitor the backup reservoirs in the outer buffer zone and record their backup capacity changes. By analyzing the change trajectory of the reserve capacity of the backup reservoirs, the total amount of water resources available for allocation during the first dispatch cycle is calculated. This step is to assess how much water resources can be mobilized to meet demand in an emergency. By combining the initial water allocation list with the total amount of available water resources, a water allocation plan for the target city in the first scheduling cycle is formulated. This plan will determine the water supply from each reservoir to different areas to meet the city's water demand during this cycle. Specific example: Suppose a city has three reservoirs: Reservoir A (abundant water supply, located in the core water supply area), Reservoir B (stable water supply, located in the core water supply area), and Reservoir C (backup reservoir, located in the outer buffer zone). After assessment, the city's core water supply area includes the city center and surrounding residential areas, while the outer buffer zone includes the more distant suburban areas; Reservoirs A and B were identified as the main water sources for supplying the core water supply area, while Reservoir C served as a backup water source. At the start of the first scheduling cycle, monitoring revealed that Reservoir A had a water volume of 5,000 cubic meters, Reservoir B had a water volume of 3,000 cubic meters, and Reservoir C had a water volume of 2,000 cubic meters. In this way, we understood the real-time water storage status of each reservoir in the core water supply area. Based on the needs of the core water supply area, it has been preliminarily decided to allocate water resources to Reservoir A and Reservoir B during the first dispatch cycle. Assuming the city center needs 4,000 cubic meters of water and the surrounding residential areas need 3,000 cubic meters, the initial allocation list is as follows: Reservoir A will supply 3,000 cubic meters of water to the city center, Reservoir B will supply 2,500 cubic meters of water to the surrounding residential areas, Reservoir A will have 2,000 cubic meters remaining, and Reservoir B will have 500 cubic meters remaining. At the same time, the reserve capacity of Reservoir C will be maintained at 2,000 cubic meters. When monitoring the changes in the reserve capacity of backup reservoir C, it was found that if the demand in the core water supply area increases, reservoir C can contribute 800 cubic meters of water in the next cycle. Therefore, the total available water resources are 2,000 cubic meters (from the surplus of reservoirs A and B) plus 800 cubic meters (from reservoir C), totaling 2,800 cubic meters. Based on the above information, the final water allocation plan for the target city in the first scheduling cycle is as follows: Reservoir A will continue to supply 3,000 cubic meters of water to the city center, Reservoir B will supply 2,500 cubic meters of water to the surrounding residential areas, and 800 cubic meters of water will be allocated from Reservoir C if demand increases; if the city center suddenly needs an additional 500 cubic meters, it can be allocated from the remaining water in Reservoir A.

[0020] In an optional embodiment, based on the real-time water storage status sequence, an initial water source allocation list for the target city within the first scheduling cycle is generated, including: Determine whether the current liquid level of each target reservoir in the real-time water storage status sequence is within the normal liquid level zone of the core water supply area, and at the same time determine whether the rate of change is within the preset stable range; The number of target reservoirs whose current liquid level is within the normal liquid level zone and whose rate of change is within the stable range in the real-time water storage status sequence is counted, and these are used as the first allocation of reservoirs. Determine the total design capacity of all target reservoirs in the core water supply area during the first scheduling cycle; Calculate the first ratio of the number of first-allocated reservoirs to the total designed reservoir capacity; Based on the first ratio, determine the initial water source allocation list for the target city within the first scheduling cycle.

[0021] It should be noted that the real-time water storage status sequence of a reservoir refers to the record of water level changes in the reservoir within a certain period of time; these changes include the current water level and the rate of change (i.e., the speed at which the water level rises or falls); the normal liquid level zone of the core water supply area is a set range that represents the water level that the reservoir should maintain under normal circumstances; for example, the normal liquid level range of a reservoir may be 100 meters to 120 meters. The stable range of the rate of change refers to the range within which the rate of water level change should be kept to ensure that the water level of the reservoir does not cause problems due to excessively rapid rises or falls; for example, the set stable range of the rate of change may be no more than 5 centimeters per hour. Determine whether the current actual water level of each target reservoir is within the normal level zone, and simultaneously check whether its rate of water level change is within the stable range. If all these conditions are met, the reservoir is considered a "qualified" reservoir. Count the number of all qualified reservoirs; this number is the "first allocation reservoir number". Then, based on the total design capacity of all target reservoirs, calculate the ratio of the first allocation reservoir number to the total capacity. Finally, based on this ratio, formulate an initial water resource allocation list to ensure the rational allocation of water resources within the first scheduling cycle. Specific example: Suppose a city has three reservoirs: Reservoir A, Reservoir B, and Reservoir C; Reservoir A: Current water level: 110 meters (within the normal water level zone); Rate of change: 3 centimeters per hour (within the stable range); Reservoir B: Current water level: 95 meters (below the normal water level zone); Rate of change: 8 centimeters per hour (rapid rise, not within the stable range); Reservoir C: Current water level: 115 meters (within the normal water level zone); Rate of change: 2 centimeters per hour (within the stable range); Based on the above information, we can analyze and determine the reservoir status: Reservoir A: qualified; Reservoir B: unqualified; Reservoir C: qualified; Count the number of qualified reservoirs: Number of qualified reservoirs = 2 (Reservoir A and Reservoir C); Assuming the total designed reservoir capacity: Reservoir A has a designed capacity of 5000 cubic meters; Reservoir B has a designed capacity of 3000 cubic meters; Reservoir C has a designed capacity of 7000 cubic meters; Total designed reservoir capacity = 5000 + 3000 + 7000 = 15000 cubic meters; Calculating the ratio: The ratio of the number of reservoirs in the first allocation to the total designed reservoir capacity = 2 / 15000; Developing an initial water source allocation list: Based on this ratio, the urban water management department may decide to allocate water resources proportionally from qualified reservoirs A and C during the first scheduling cycle to meet the needs of the core water supply area; The specific allocation amount will be adjusted based on subsequent water demand and the actual condition of the reservoirs.

[0022] In an optional embodiment, determining an initial water resource allocation list for the target city within a first scheduling cycle based on a first ratio includes: The second scheduling period before the first scheduling period, the second scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the third scheduling period. Determine the historical water supply continuity index for each reservoir that needs adjustment during the third scheduling cycle; Determine whether the historical water supply continuity index of each reservoir requiring adjustment is greater than the preset continuity standard, and at the same time determine whether the current water level is above the low warning line of the core water supply area; The number of reservoirs requiring adjustment that have a historical water supply continuity index greater than the continuity standard and whose current water level is above the low warning line will be used as the second allocation of reservoirs. Add the allocated water volume corresponding to the number of the first allocated reservoirs to the allocated water volume corresponding to the number of the second allocated reservoirs to obtain the total allocated water volume in the initial water source allocation list; If the first ratio is not less than the preset reservoir capacity threshold, then the allocated water volume corresponding to the first allocated reservoir quantity will be used as the total allocated water volume in the initial water source allocation list.

[0023] It should be noted that the third scheduling cycle is a time period, consisting of the first two scheduling cycles of the first scheduling cycle, the last two scheduling cycles of the first scheduling cycle, and the total duration of the first scheduling cycle. The purpose of this cycle is to better assess the reservoir's historical water supply and current status. Next, attention should be paid to each reservoir that needs adjustment: the historical water supply continuity index is an indicator used to measure the reservoir's water supply capacity over a period of time; it reflects the stability and reliability of the reservoir's water supply. The preset continuity standard is a specific value used to determine whether the reservoir's historical water supply continuity meets the standard. The low-level warning line for the core water supply area refers to the lowest threshold of the reservoir's water level; below this level, water supply security may be affected. Determine whether the historical water supply continuity index of each reservoir requiring adjustment is higher than the preset standard, and check whether its current water level is above the low-level warning line; if a reservoir meets both conditions at the same time, it is considered a qualified reservoir requiring adjustment; count the number of all qualified reservoirs, which is the "number of second allocation reservoirs"; Add the allocated water volume corresponding to the number of reservoirs in the first allocation (i.e., the initial water source allocation volume) to the allocated water volume corresponding to the number of reservoirs in the second allocation to obtain the "total allocated water volume in the initial water source allocation list"; If the first ratio (i.e., the ratio of the number of first allocated reservoirs to the total designed reservoir capacity) is not less than the preset reservoir capacity threshold, then the total allocated water volume in the initial water source allocation list will only be the allocated water volume corresponding to the number of first allocated reservoirs. Specific example: Continuing with the three reservoirs mentioned earlier (Reservoir A, Reservoir B, and Reservoir C), assume that their respective states and allocated water volumes have been determined in the first scheduling cycle; set the following parameters: Reservoir A's historical water supply continuity index is 0.8, the low-level warning line is 100 meters, and the current water level is 110 meters; Reservoir B's historical water supply continuity index is 0.4, the low-level warning line is 95 meters, and the current water level is 92 meters; Reservoir C's historical water supply continuity index is 0.9, the low-level warning line is 105 meters, and the current water level is 115 meters. Reservoir A has a continuity index of 0.8, which meets the set continuity standard (assumed to be 0.6), and its current water level of 110 meters is 100 meters above the low-level warning line, therefore it is qualified. Reservoir B has a continuity index of 0.4, which does not meet the standard, and its water level of 92 meters is below the low-level warning line, therefore it is unqualified. Reservoir C has a continuity index of 0.9, which meets the standard, and its water level of 115 meters is 105 meters above the low-level warning line, therefore it is qualified. The number of qualified reservoirs that need adjustment is 2 (Reservoir A and Reservoir C). Assume that the first allocation of water to reservoirs (reservoir A and reservoir C) corresponds to an allocation of 500 cubic meters, while the second allocation of water to reservoirs (reservoir A and reservoir C) is also allocated 400 cubic meters based on historical water supply conditions; at this point, the total allocated water volume is 500 cubic meters plus 400 cubic meters, which equals 900 cubic meters. Assuming the first ratio is 0.13 and the preset reservoir capacity threshold is 0.1; because 0.13 is greater than 0.1, the total allocated water volume is set at 500 cubic meters (i.e., the allocated water volume corresponding to the first allocated reservoir quantity), instead of 900 cubic meters; ultimately, the total allocated water volume determined in the initial water source allocation list of the target city in the first scheduling cycle is 500 cubic meters, to ensure the rational use of water resources and the safety of water supply.

[0024] In an optional embodiment, based on the reserve capacity change trajectory, the total amount of dispatchable water resources for the target city during the first scheduling cycle is calculated, including: Determine whether the initial liquid level of the reserve capacity change trajectory of each backup reservoir is above the preset safe liquid level line, and at the same time determine whether the termination liquid level is on the lower limit boundary line of the outer buffer zone. The number of standby reservoirs whose initial liquid level is above the safety level line and whose final liquid level is on the lower limit boundary line of the outer buffer zone is counted as the first available quantity. Determine the total reserve capacity of all standby reservoirs within the first scheduling cycle; calculate the second ratio of the first available quantity to the total reserve capacity; If the second ratio is less than the preset allocation threshold, then the standby reservoirs whose starting liquid level is not above the safe liquid level line and / or whose ending liquid level is not above the lower limit boundary line of the outer buffer zone will be marked as reservoirs to be checked.

[0025] It should be noted that for each backup reservoir, its initial liquid level is checked to ensure that it is higher than a preset safety level line. This line is to ensure the safety of the reservoir during water supply and to avoid insufficient water supply due to low water level. Check whether the final liquid level of each reservoir is above the lower limit boundary line of a preset outer buffer zone; the purpose of this line is to prevent the water level of the reservoir from being too low, which would affect the external environment. If the initial liquid level of a reservoir is above the safety level line and the final liquid level is above the lower limit boundary line of the outer buffer zone, the reservoir is considered qualified; the number of these qualified reservoirs is called the "first available quantity". Calculate the total reserve capacity of all backup reservoirs, that is, the total amount of water these reservoirs can provide under the current circumstances; By comparing the "first available quantity" with the "total reserve capacity", a ratio (second ratio) is obtained; this ratio is used to determine the status of available water resources. If the second ratio is less than the preset allocation threshold, then those reservoirs whose starting liquid level is not above the safe liquid level line or whose ending liquid level is not above the lower limit boundary line of the outer buffer zone will be marked as "reservoirs to be checked" for subsequent detailed inspection and evaluation. Specific example: Suppose the target city has three backup reservoirs: Reservoir X, Reservoir Y, and Reservoir Z; analyze their backup capacity change trajectories, setting the following parameters: Reservoir X: Initial level: 105 meters; Safety level: 100 meters; Termination level: 90 meters; Lower boundary of outer buffer zone: 95 meters; Backup capacity: 500 cubic meters; Reservoir Y: Initial level: 95 meters; Safety level: 100 meters; Termination level: 100 meters; Lower boundary of outer buffer zone: 95 meters; Backup capacity: 800 cubic meters; Reservoir Z: Initial level: 110 meters; Safety level: 100 meters; Termination level: 96 meters; Lower boundary of outer buffer zone: 95 meters; Backup capacity: 600 cubic meters; Judging Reservoir X: The initial liquid level of 105 meters is greater than the safety level line of 100 meters, which meets the condition; the final liquid level of 90 meters is lower than the lower limit boundary line of the outer buffer zone of 95 meters, which does not meet the condition. Judging Reservoir Y: The initial liquid level of 95 meters is lower than the safety level line of 100 meters, which does not meet the condition; the final liquid level of 100 meters is equal to the lower limit boundary line of the outer buffer zone of 95 meters, which still does not meet the condition. Judging Reservoir Z: The initial liquid level of 110 meters is greater than the safety level line of 100 meters, which meets the condition; the final liquid level of 96 meters is higher than the lower limit boundary line of the outer buffer zone of 95 meters, which meets the condition. Therefore, we can conclude that the number of qualified backup reservoirs is 1 (only Reservoir Z meets the condition); the total backup capacity is 500 cubic meters (Reservoir X) + 800 cubic meters (Reservoir Y) + 600 cubic meters (Reservoir Z) = 1900 cubic meters. The first available allocation quantity is 1, and the total reserve capacity is 1900 cubic meters, resulting in a second ratio of 0.000526316. Assuming the preset allocation threshold is 0.01, it is clear that 0.000526316 is less than 0.01. Therefore, reservoir X (initial liquid level is not above the safety liquid level line) and reservoir Y (initial liquid level is not above the safety liquid level line) will be marked as reservoirs to be checked; while reservoir Z is a qualified available allocation reservoir.

[0026] In an optional embodiment, based on the reserve capacity change trajectory, calculating the total amount of dispatchable water resources for the target city during the first scheduling cycle further includes: The fourth scheduling period before the first scheduling period, the fourth scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the fifth scheduling period. Determine the historical reserve capacity fluctuation curve of each reservoir to be checked during the fifth scheduling cycle; determine whether the peak value of the historical reserve capacity fluctuation curve of each reservoir to be checked is below the upper limit boundary of the outer buffer zone, and at the same time determine whether the valley value is above the safe liquid level line. The number of reservoirs to be verified whose peak value of the historical reserve capacity fluctuation curve is below the upper limit boundary of the buffer zone and whose trough value is above the safe liquid level line is used as the second available quantity. The first and second adjustable quantities are added together to obtain the total adjustable water resources; if the second ratio is not less than the adjustment threshold, the first adjustable quantity is taken as the total adjustable water resources.

[0027] It should be noted that a new time period is defined as the fifth scheduling cycle, which includes all the time of the first four scheduling cycles and the last four scheduling cycles of the first scheduling cycle; this definition means that historical data of the reservoir will be viewed over a longer period of time. For each reservoir previously marked as pending verification, its historical reserve capacity fluctuations during the fifth scheduling cycle will be analyzed; this includes monitoring the reservoir's highest (peak) and lowest (valley) water levels during this cycle. Check whether the peak value of the historical reserve capacity fluctuation curve of each reservoir to be checked is lower than the upper limit boundary of a preset outer buffer zone; at the same time, check whether the valley value is higher than a preset safe liquid level line. If the peak value of a reservoir to be inspected is below the upper limit of the outer buffer zone and the trough value is above the safe level, then the reservoir is considered qualified; the number of qualified reservoirs is called the "second available quantity". The total amount of water resources that can be allocated is obtained by adding the first available quantity (the number of qualified reservoirs in the first scheduling cycle) and the second available quantity. If the previously calculated second ratio is not less than a preset allocation threshold, then the first available allocation quantity can be directly regarded as the total available water resources. Specific example: Suppose we are still analyzing the urban reservoirs mentioned earlier, continuing to use reservoirs X, Y, and Z; suppose that in the fifth scheduling cycle (including data before and after the first scheduling cycle), the following historical reserve capacity fluctuation information was obtained: Reservoir X: Peak value: 80 meters; Valley value: 50 meters; Outer buffer upper limit boundary: 90 meters; Safe level: 40 meters; Reservoir Y: Peak value: 100 meters; Valley value: 70 meters; Outer buffer upper limit boundary: 95 meters; Safe level: 60 meters; Reservoir Z: Peak value: 92 meters; Valley value: 55 meters; Outer buffer upper limit boundary: 95 meters; Safe level: 50 meters; Determine the peak and trough values ​​for each reservoir to be inspected: Reservoir X: Peak value of 80 meters is below the upper limit of the outer buffer zone (90 meters), meeting the requirements; trough value of 50 meters is above the safe level (40 meters), meeting the requirements; therefore, Reservoir X is considered qualified. Reservoir Y: Peak value of 100 meters is above the upper limit of the outer buffer zone (95 meters), not meeting the requirements; therefore, Reservoir Y is considered unqualified. Reservoir Z: Peak value of 92 meters is below the upper limit of the outer buffer zone (95 meters), meeting the requirements; trough value of 55 meters is above the safe level (50 meters), meeting the requirements; therefore, Reservoir Z is considered qualified. After evaluation, the number of qualified reservoirs to be inspected is 2 (Reservoir X and Reservoir Z). Based on the previous results (the first available quantity is 1, and only reservoir Z meets the conditions of the first scheduling cycle), the following statistics are performed: the first available quantity is 1; the second available quantity is 2; the final total available water resources are: 1 (first available quantity) + 2 (second available quantity) = 3; if the previously calculated second ratio meets the scheduling threshold, the first available quantity can be regarded as the final total available water resources; in this case, the first available quantity is 1.

[0028] In an optional embodiment, determining the target water allocation scheme for the target city in the first scheduling cycle based on the initial water allocation list and the total amount of available water resources includes: Compare the total allocated amount in the initial water allocation list with the total available water resources, and calculate the gap between the total allocated amount and the total available water resources.

[0029] It should be noted that the initial water allocation list is a list that records the amount of water that the target city needs to allocate in the first scheduling cycle, and usually includes the specific water demand of each water-using sector or region; the total amount of water resources that can be allocated is the total amount of water resources that can be flexibly allocated within a certain period of time after analyzing the reserve capacity of the reservoir; this amount is based on the historical data of the reservoir, the environmental safety line and other relevant factors. The total allocation in the initial water allocation list (i.e., the sum of water required by each water user) is compared with the total available water resources. If the initial allocation is less than the total available water resources, it means that the target city has enough water to meet its needs in the first scheduling cycle and no adjustment is needed. If the initial allocation is greater than the total available water resources, a gap will occur. The gap value represents the degree of water shortage faced by the target city in the current scheduling cycle. Specific example: Suppose the initial water allocation list for the target city in the first scheduling cycle is as follows: industrial water demand: 3000 cubic meters; agricultural irrigation demand: 2000 cubic meters; residential water demand: 5000 cubic meters; adding these demands together, the initial total water allocation is 11000 cubic meters; based on the previous analysis, the total available water resources for the city in the first scheduling cycle are determined to be 9000 cubic meters. The initial total water allocation (11,000 cubic meters) is compared with the total available water resources (9,000 cubic meters). The initial total water allocation is greater than the total available water resources, which means that the target city faces a shortage of water resources. To calculate the gap, the total available water resources are subtracted from the initial total allocation: Gap value = Initial total water allocation - Total available water resources; Gap value = 11,000 - 9,000 = 2,000 cubic meters. In the first scheduling cycle, the target city lacks 2,000 cubic meters of water to meet its needs.

[0030] In an optional embodiment, determining the target water allocation scheme for the target city in the first scheduling cycle based on the initial water allocation list and the total amount of available water resources further includes: If the total allocated amount exceeds the total available water resources and the shortfall exceeds the preset available water resources threshold, an emergency water intake command will be activated in the outer buffer zone to include all available water resources in the target water source allocation plan. If the total allocated amount is greater than the total available water resources and the gap is not greater than the preset available water resources threshold, then the non-priority users in the initial water source allocation list are reduced to obtain the target water source allocation scheme.

[0031] It should be noted that the initial water allocation list records the amount of water required by different water-using sectors or regions during the first scheduling cycle; after analysis, the total amount of water resources that can be flexibly allocated during the first scheduling cycle is obtained; the difference between the initial water allocation total and the total amount of water resources that can be allocated indicates the degree of water shortage. If the initial total water allocation exceeds the total available water resources and the shortfall exceeds a preset threshold, emergency measures will be activated to extract water from the outer buffer zone; if the shortfall is not greater than the preset threshold, priority will be given to ensuring the needs of important users, and the water allocation for non-priority users will be appropriately reduced. Specific example: Suppose the initial water allocation list for the target city is as follows: industrial water demand: 3000 cubic meters; agricultural irrigation demand: 2000 cubic meters; residential water demand: 5000 cubic meters; therefore, the initial total water allocation is 11000 cubic meters; after water source analysis, it is determined that the total amount of water resources available for allocation in the first scheduling cycle of the city is 9000 cubic meters. Assuming the preset adjustable water resource threshold is 1500 cubic meters; at this point, the shortage value of 2000 cubic meters is greater than 1500 cubic meters, therefore the following situation needs to be addressed: Because the shortfall exceeded the preset threshold, city managers decided to divert all 9,000 cubic meters of available water resources from the outer buffer zone to meet the needs of various departments. In this scenario, the target water allocation scheme will include the needs of all sectors, with a total allocation of 10,000 cubic meters (using 9,000 cubic meters of available water resources), and will meet the needs of residents, industry, and agriculture as much as possible.

[0032] In an optional embodiment, determining the target water allocation scheme for the target city in the first scheduling cycle based on the initial water allocation list and the total amount of available water resources further includes: If the total available water resources exceed the total allocated water resources, and the difference between the two exceeds a preset allocation difference threshold, the excess water will be stored in the virtual regulating reservoir of the core water supply area as a supplement to the target water source allocation plan. If the total available water resources are greater than the total allocated water resources, and the difference between the two is not greater than the preset allocation difference threshold, then the initial water source allocation list is maintained unchanged as the target water source allocation scheme.

[0033] It should be noted that when the available water resources exceed the total allocation and the difference exceeds a certain threshold, the excess water will be stored in the virtual regulation reservoir of the core water supply area for future use; if the available water resources exceed the total allocation but the difference does not exceed the threshold, no adjustment will be made and the initial water source allocation list will remain unchanged. In another scenario, the initial total water allocation remains 11,000 cubic meters, but the total available water resources are 10,000 cubic meters, resulting in a shortfall of 1,000 cubic meters. The preset threshold for available water resources is also 1,500 cubic meters. In this case, because the shortfall (1,000 cubic meters) is less than the preset threshold, the administrator will choose to reduce the water allocation for non-priority users, such as reducing agricultural water consumption by 200 cubic meters, to ensure that the water needs of residents and industries are met first. If the initial water allocation is 9,000 cubic meters, and the total available water resources are 11,000 cubic meters, the deficit is negative (indicating excess water). Assuming the preset allocation difference threshold is 1,000 cubic meters, since the total available water resources are greater than the initial allocation, and the difference (2,000 cubic meters) is greater than the threshold, the target city will store the excess water in a virtual regulating reservoir of 2,000 cubic meters for future needs. If, under the same circumstances, the difference does not exceed 1,000 cubic meters, for example, if the available water resources are 10,000 cubic meters and the initial water allocation is 9,000 cubic meters, then the city administrators will decide to maintain the initial water allocation list and continue to implement the original plan.

[0034] In an optional embodiment, obtaining the water supply priority characteristics of each reservoir in the target city's water supply network includes: Based on the location information of each area of ​​the target city, calculate the distance information between each reservoir and each area of ​​the target city; Obtain water quality test reports for each reservoir and determine the water quality level of each reservoir; Analyze the historical water supply records of each reservoir to determine the water supply stability information of each reservoir; Based on current available water quantity, distance, water quality level, and water supply stability information, the water supply priority information of each reservoir to each area of ​​the target city is determined.

[0035] It should be noted that, based on the geographical location of the target city and the location of each reservoir, the distance between each reservoir and various areas of the city is calculated; this step helps to understand which reservoirs can supply water to certain areas more quickly, and the closer reservoirs are usually given priority in emergency situations. Each reservoir undergoes regular water quality testing to ensure that its water supply meets safety and health standards. By analyzing the water quality test reports, the water quality level of each reservoir can be determined, such as "excellent", "good", "average" or "unqualified". Reservoirs with better water quality will have higher priority in water supply. By studying the historical water supply records of each reservoir, including water supply volume and frequency, we can assess the water supply stability of the reservoirs. Reservoirs with high stability mean that they can continuously provide sufficient water during peak demand periods and are more suitable for priority selection. Taking into account current available water volume, distance information, water quality level, and water supply stability, the water supply priority of each reservoir to various areas of the target city is finally ranked; generally, reservoirs with higher priority will be used first for water allocation. Specific example: Suppose the target city has three main reservoirs, named Reservoir A, Reservoir B and Reservoir C respectively, and the city has four main areas: Area 1, Area 2, Area 3 and Area 4. Reservoir A is 5 km from region 1, 15 km from region 2, 20 km from region 3, and 30 km from region 4; Reservoir B is 10 km from region 1, 5 km from region 2, 25 km from region 3, and 20 km from region 4; Reservoir C is 15 km from region 1, 10 km from region 2, 5 km from region 3, and 25 km from region 4. Reservoir A has the shortest water supply distance to region 1, Reservoir B has the shortest water supply distance to region 2, and Reservoir C has the shortest distance to region 3. Water quality test reports show that Reservoir A's water quality is "excellent," Reservoir B's is "good," and Reservoir C's is "fair." Therefore, in terms of water quality, Reservoir A is better than Reservoir B, and Reservoir B is better than Reservoir C. Historical water supply records show that Reservoir A has been able to meet demand almost every day over the past year, with high water supply stability; Reservoir B experienced brief water shortages during peak water supply periods, with moderate stability; while Reservoir C has experienced occasional water supply interruptions, with low stability. After comprehensively considering the above factors, the following priorities can be established: For region 1, reservoir A is the first choice because it is not only the closest, but also has the best water quality and high stability; for region 2, reservoir B is the best choice because it is the closest, and although its water quality is not as good as reservoir A, it is still considered to be of a good level; for region 3, although reservoir C is the closest, its water quality is average and its water supply stability is low, so its priority is relatively low; reservoir A can be used as a supplement; for region 4, considering distance and water quality, reservoir B is the first choice, followed by reservoir A, and reservoir C has the lowest priority.

[0036] Example 2, please refer to Figure 2 This invention provides a technical solution: a city multi-reservoir water source allocation system based on comprehensive evaluation information, applicable to the aforementioned city multi-reservoir water source allocation method based on comprehensive evaluation information, comprising: Water source division unit 1 is used to obtain the water supply priority characteristics of each reservoir in the target city's water supply network, and to determine the core water supply area and the outer buffer zone based on the water supply priority characteristics; Data acquisition unit 2 is used to determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle; The first allocation unit 3 is used to generate an initial water source allocation list for the target city within the first scheduling cycle based on the real-time water storage status sequence; and to determine the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone within the first scheduling cycle. Total Statistical Unit 4 is used to calculate the total amount of available water resources for the target city during the first scheduling cycle based on the trajectory of changes in reserve capacity. The second allocation unit 5 is used to determine the target water source allocation scheme for the target city in the first scheduling cycle based on the initial water source allocation list and the total amount of adjustable water resources.

[0037] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A method for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information, characterized in that: include: Obtain the water supply priority characteristics of each reservoir in the target city's water supply network, and determine the core water supply area and the outer buffer zone based on the water supply priority characteristics; Determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle; Based on the real-time water storage status sequence, an initial water source allocation list for the target city during the first scheduling cycle is generated; the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone is determined during the first scheduling cycle. Based on the trajectory of reserve capacity changes, the total amount of available water resources for the target city during the first dispatch cycle is calculated. The target water allocation plan for the target city in the first scheduling cycle is determined based on the initial water source allocation list and the total amount of available water resources.

2. The method for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information according to claim 1, characterized in that, Based on the real-time water storage status sequence, an initial water source allocation list for the target city during the first scheduling cycle is generated, including: Determine whether the current liquid level of each target reservoir in the real-time water storage status sequence is within the normal liquid level zone of the core water supply area, and at the same time determine whether the rate of change is within the preset stable range; The number of target reservoirs whose current liquid level is within the normal liquid level zone and whose rate of change is within the stable range in the real-time water storage status sequence is counted, and these are used as the first allocation of reservoirs. Determine the total design capacity of all target reservoirs in the core water supply area during the first scheduling cycle; Calculate the first ratio of the number of first-allocated reservoirs to the total designed reservoir capacity; Based on the first ratio, determine the initial water source allocation list for the target city within the first scheduling cycle.

3. The urban multi-reservoir water source allocation method based on comprehensive evaluation information according to claim 2, characterized in that, Based on the first ratio, determine the initial water resource allocation list for the target city during the first scheduling cycle, including: The second scheduling period before the first scheduling period, the second scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the third scheduling period. Determine the historical water supply continuity index for each reservoir that needs adjustment during the third scheduling cycle; Determine whether the historical water supply continuity index of each reservoir requiring adjustment is greater than the preset continuity standard, and at the same time determine whether the current water level is above the low warning line of the core water supply area; The number of reservoirs requiring adjustment that have a historical water supply continuity index greater than the continuity standard and whose current water level is above the low warning line will be used as the second allocation of reservoirs. Add the allocated water volume corresponding to the number of the first allocated reservoirs to the allocated water volume corresponding to the number of the second allocated reservoirs to obtain the total allocated water volume in the initial water source allocation list; If the first ratio is not less than the preset reservoir capacity threshold, then the allocated water volume corresponding to the first allocated reservoir quantity will be used as the total allocated water volume in the initial water source allocation list.

4. The urban multi-reservoir water source allocation method based on comprehensive evaluation information according to claim 3, characterized in that, Based on the trajectory of reserve capacity changes, the total amount of available water resources for the target city during the first dispatch cycle is calculated, including: Determine whether the initial liquid level of the reserve capacity change trajectory of each backup reservoir is above the preset safe liquid level line, and at the same time determine whether the termination liquid level is on the lower limit boundary line of the outer buffer zone. The number of standby reservoirs whose initial liquid level is above the safety level line and whose final liquid level is on the lower limit boundary line of the outer buffer zone is counted as the first available quantity. Determine the total reserve capacity of all standby reservoirs within the first scheduling cycle; calculate the second ratio of the first available quantity to the total reserve capacity; If the second ratio is less than the preset allocation threshold, then the standby reservoirs whose starting liquid level is not above the safe liquid level line and / or whose ending liquid level is not above the lower limit boundary line of the outer buffer zone will be marked as reservoirs to be checked.

5. The urban multi-reservoir water source allocation method based on comprehensive evaluation information according to claim 4, characterized in that, Based on the trajectory of reserve capacity changes, the total amount of available water resources for the target city during the first dispatch cycle is calculated, including: The fourth scheduling period before the first scheduling period, the fourth scheduling period after the first scheduling period, and the total duration of the first scheduling period are taken as the fifth scheduling period. Determine the historical reserve capacity fluctuation curve of each reservoir to be checked during the fifth scheduling cycle; determine whether the peak value of the historical reserve capacity fluctuation curve of each reservoir to be checked is below the upper limit boundary of the outer buffer zone, and at the same time determine whether the valley value is above the safe liquid level line. The number of reservoirs to be verified whose peak value of the historical reserve capacity fluctuation curve is below the upper limit boundary of the buffer zone and whose trough value is above the safe liquid level line is used as the second available quantity. The first and second adjustable quantities are added together to obtain the total adjustable water resources; if the second ratio is not less than the adjustment threshold, the first adjustable quantity is taken as the total adjustable water resources.

6. The urban multi-reservoir water source allocation method based on comprehensive evaluation information according to claim 5, characterized in that, Based on the initial water source allocation list and the total amount of available water resources, the target water source allocation plan for the target city in the first scheduling cycle is determined, including: Compare the total allocated amount in the initial water allocation list with the total available water resources, and calculate the gap between the total allocated amount and the total available water resources.

7. The method for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information according to claim 6, characterized in that, The target water allocation plan for the target city in the first scheduling cycle is determined based on the initial water source allocation list and the total amount of available water resources. This also includes: If the total allocated amount exceeds the total available water resources and the shortfall exceeds the preset available water resources threshold, an emergency water intake command will be activated in the outer buffer zone to include all available water resources in the target water source allocation plan. If the total allocated amount is greater than the total available water resources and the gap is not greater than the preset available water resources threshold, then the non-priority users in the initial water source allocation list are reduced to obtain the target water source allocation scheme.

8. The method for allocating water resources from multiple urban reservoirs based on comprehensive evaluation information according to claim 7, characterized in that, The target water allocation plan for the target city in the first scheduling cycle is determined based on the initial water source allocation list and the total amount of available water resources. This also includes: If the total available water resources exceed the total allocated water resources, and the difference between the two exceeds a preset allocation difference threshold, the excess water will be stored in the virtual regulating reservoir of the core water supply area as a supplement to the target water source allocation plan. If the total available water resources are greater than the total allocated water resources, and the difference between the two is not greater than the preset allocation difference threshold, then the initial water source allocation list is maintained unchanged as the target water source allocation scheme.

9. The urban multi-reservoir water source allocation method based on comprehensive evaluation information according to claim 8, characterized in that, Obtain the water supply priority characteristics of each reservoir in the target city's water supply network, including: Based on the location information of each area of ​​the target city, calculate the distance information between each reservoir and each area of ​​the target city; Obtain water quality test reports for each reservoir and determine the water quality level of each reservoir; Analyze the historical water supply records of each reservoir to determine the water supply stability information of each reservoir; Based on current available water quantity, distance, water quality level, and water supply stability information, the water supply priority information of each reservoir to each area of ​​the target city is determined.

10. A city multi-reservoir water source allocation system based on comprehensive evaluation information, applicable to the city multi-reservoir water source allocation method based on comprehensive evaluation information as described in any one of claims 1-9, characterized in that, include: The water source division unit is used to obtain the water supply priority characteristics of each reservoir in the target city's water supply network, and to determine the core water supply area and the outer buffer zone based on the water supply priority characteristics; The data acquisition unit is used to determine the real-time water storage status sequence of each target reservoir in the core water supply area during the first scheduling cycle. The first allocation unit is used to generate an initial water source allocation list for the target city within the first scheduling cycle based on the real-time water storage status sequence; and to determine the reserve capacity change trajectory of each backup reservoir located in the outer buffer zone within the first scheduling cycle. The total quantity statistics unit is used to calculate the total amount of available water resources for a target city during the first scheduling cycle based on the trajectory of changes in reserve capacity. The second allocation unit is used to determine the target water allocation scheme for the target city in the first scheduling cycle based on the initial water allocation list and the total amount of adjustable water resources.

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