Water resource scheduling method, system, medium and equipment for rural water supply

Abstract

The invention relates to the technical field of water resource scheduling, and provides a water resource scheduling method and system for rural water supply, a medium and equipment, and the method comprises the steps: obtaining the water supply amount of a current month in a plurality of historical years for a water supply plant, and obtaining the predicted water demand through the mean value calculation; calculating standard water demand; if the predicted water demand is greater than the standard water demand, the water supply amount is the predicted water demand; if the predicted water demand is smaller than the standard water demand, the water supply amount is adjusted by adopting a change coefficient on the basis of the predicted water demand; the change coefficient is determined according to the change of the water supply amount of the current month in a plurality of historical years; the method comprises the following steps: determining the available water supply amount for water sources related to a water supply plant; and making a scheduling plan based on the water supply amount of the water supply plant and the available water supply amount of the water source. Excessive or vacancy of water supply is avoided, reasonability and accuracy of water supply are improved, and planning and scheduling of the water supply system can better adapt to local actual requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of water resource scheduling, and particularly relates to a water resource scheduling method, system, medium and device for rural water supply. Background Art

[0002] The statements in this part merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] Currently, there is no perfect scheduling model for rural water supply water resource scheduling. Most of the scheduling instructions are issued and scheduled through manual experience. Manual scheduling faces problems such as complex working conditions, complex pipe networks, difficult inspection, low emergency repair efficiency, and slow restoration of water supply. These problems pose many challenges to the management and maintenance of rural water supply systems, affecting the stability of water supply and the safety of water quality.

[0004] Existing water resource scheduling methods only simply refer to a single index or make rough estimates, without fully considering various factors. The water supply system will change due to various factors, such as seasonal changes, population growth, and changes in water use habits. It is difficult for existing technologies to adapt to these dynamic changes. Summary of the Invention

[0005] In order to solve the technical problems in the above background art, the present invention provides a water resource scheduling method, system, medium and device for rural water supply. The water supply volume of the water supply plant not only considers the historical water use pattern but also takes into account the requirements of the standard water demand, avoiding excessive or deficit water supply volume, improving the rationality and accuracy of water supply. Moreover, the coefficient of variation is obtained in combination with the local actual situation, which can reflect the particularity and actual changes of local water use, enabling the planning and scheduling of the water supply system to better adapt to the local actual needs.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] The first aspect of the present invention provides a water resource scheduling method for rural water supply, which includes:

[0008] For the water supply plant, obtain the water supply volume of the current month in several historical years, and obtain the predicted water demand of the current month of the current year through mean calculation; obtain the number of water users and the monthly water use standard, and calculate the standard water demand of the current month of the current year; if the predicted water demand is greater than the standard water demand, the water supply volume is the predicted water demand; if the predicted water demand is less than the standard water demand, the water supply volume is adjusted using the coefficient of variation on the basis of the predicted water demand; the coefficient of variation is determined according to the changes in the water supply volume of the current month in several historical years;

[0009] For the water source involved in the water supply plant, determine the available water supply volume;

[0010] Based on the water supply volume of the water supply plant and the available water supply volume of the water source, a scheduling plan is formulated.

[0011] Furthermore, the water supply volume Qj in the current month of a certain historical year is Qj = [(m1 + m2 + m3 +.....) / k] * 24 * n, where mi is the i-th water supply volume data in the current month of this historical year, the number of water supply volume data in the current month of this historical year is k, and n is the total number of days in the current month.

[0012] Furthermore, the standard water demand is the product of the number of water users and the monthly water use standard.

[0013] Furthermore, if the predicted water demand is less than the standard water demand, the water supply volume Md = Qd + (Qx - Qd) * CV, where Qd is the predicted water demand, Qx is the standard water demand, and CV is the coefficient of variation.

[0014] Furthermore, the coefficient of variation is expressed as CV = frac{σ}{μ} × 100%, where μ = frac{∑Qj}{N}, Qj is the water supply volume in the current month of a certain historical year, N is the number of historical years, and σ = sqrt{frac{Σ(Qj - μ)^2}{N}}.

[0015] Furthermore, for the water sources involved in the water supply plant, the current reservoir capacity is determined through the reservoir capacity - water level curve, and the cumulative reservoir capacity of all water sources is calculated to obtain the available water supply volume.

[0016] The second aspect of the present invention provides a water resource scheduling system for rural water supply, which includes:

[0017] A water supply volume determination module, which is configured to: for the water supply plant, obtain the water supply volume in the current month of several historical years, and obtain the predicted water demand in the current month of the current year through average calculation; obtain the number of water users and the monthly water use standard, and calculate the standard water demand in the current month of the current year; if the predicted water demand is greater than the standard water demand, the water supply volume is the predicted water demand; if the predicted water demand is less than the standard water demand, the water supply volume is adjusted using the coefficient of variation on the basis of the predicted water demand; the coefficient of variation is determined according to the variation of the water supply volume in the current month of several historical years;

[0018] An available water supply volume determination module, which is configured to: determine the available water supply volume for the water sources involved in the water supply plant;

[0019] A scheduling module, which is configured to: formulate a scheduling plan based on the water supply volume of the water supply plant and the available water supply volume of the water source.

[0020] Further, the coefficient of variation is expressed as CV = frac{σ}{μ}×100%, where μ = frac{∑Qj}{N}, Qj is the water supply volume of the current month in a certain historical year, N is the number of historical years, and σ = sqrt{frac{Σ(Qj - μ)^2}{N}}.

[0021] The third aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, it implements the steps in a water resource scheduling method for rural water supply as described above.

[0022] The fourth aspect of the present invention provides a computer device, including a computer-readable storage medium, a processor, and a computer program stored on the computer-readable storage medium and executable on the processor. When the processor executes the program, it implements the steps in a water resource scheduling method for rural water supply as described above.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] The water supply volume of the water supply plant of the present invention takes into account both the historical water use pattern and the requirements of the standard water demand, avoiding excessive or deficit water supply volume, improving the rationality and accuracy of water supply. Moreover, the coefficient of variation is obtained by combining the local actual situation, which can reflect the particularity and actual changes of local water use, enabling the planning and scheduling of the water supply system to better adapt to the actual needs of the local area.

[0025] The calculation of the coefficient of variation of the present invention comprehensively considers the dispersion degree of the water supply volume data in the same month in recent years. By calculating the average value and standard deviation, the coefficient of variation is obtained, which can quantify the fluctuation of historical water supply volume data. In this way, when determining the water supply volume, it does not simply rely on the simple average value, but fully considers the change trend and fluctuation degree of the data, making the prediction and decision of the water supply volume more scientific and reliable.

[0026] The setting of the coefficient of variation of the present invention ultimately affects the determination of the water supply volume, and the water supply volume is associated with the scheduling plans of the water source and the standby water source, and controls the switching pumps of the water plant pump station in combination with the scheduling plan through the PLC. An accurate coefficient of variation can make the prediction of the water supply volume more in line with the actual needs, thereby optimizing the control of the water plant pump station, improving the operation efficiency of the water supply system, and reducing the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specification drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0028] Figure 1It is a flowchart of a water resource scheduling method for rural water supply in the first embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of a computer device in the fourth embodiment of the present invention. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0032] Embodiment 1

[0033] This embodiment provides a water resource scheduling method for rural water supply.

[0034] A water resource scheduling method for rural water supply provided in this embodiment, as Figure 1 shown, includes the following steps:

[0035] Step 1: For the water supply plant, predict the expected water demand for the current month of the current year based on the water supply volume in historical years.

[0036] Step 101: Assume that the current month is the a-th (a = 1, 2, 3,..., 12) month and the current year is the b-th year. Calculate the water supply volumes in the same month of several historical years, that is, the water supply volumes in the same month of the recent five years, namely, Q1, Q2, Q3, Q4, Q5, where Q1 is the water supply volume in the a-th month of the (b - 1)-th year, Q2 is the water supply volume in the a-th month of the (b - 2)-th year, Q3 is the water supply volume in the a-th month of the (b - 3)-th year, Q4 is the water supply volume in the a-th month of the (b - 4)-th year, and Q5 is the water supply volume in the a-th month of the (b - 5)-th year.

[0037] In this embodiment, Qj = [(m1 + m2 + m3 +.....) / k] * 24 * n, where j = 1, 2,..., 5, mi is the i-th water supply data in the a-th month of the (b - j)-th year, the number of water supply data in the a-th month of the (b - j)-th year is k, the reporting frequency of the water supply data is one piece per hour, and n is the total number of days in the a-th month.

[0038] Step 102: The expected water demand for the current month of the current year is Qd = (Q1 + Q2 + Q3 + Q4 + Q5) / 5.

[0039] Step 2: Calculate the standard water demand for the current month of the current year within the water supply range of the water supply plant as Qx = number of users (mp) * monthly water use standard (mw), that is, Qx = (mp * mw).

[0040] Step 3: Determine the water supply volume Md for the current month of the current year based on the predicted water demand and the standard water demand:

[0041] If Qd > Qx, then the water supply volume Md for the current month of the current year is Qd;

[0042] If Qd < Qx, then the water supply volume Md for the current month of the current year is: Qd + (Qx - Qd) * CV, where CV is the variation coefficient.

[0043] In this embodiment, the variation coefficient CV is obtained by combining the specific change percentages of Q1 - Q5 in the local actual situation. The specific steps include:

[0044] (1) Calculate the average value μ: μ = \frac{Q1 + Q2 + Q3 + Q4 + Q5}{5};

[0045] (2) Taking the average value μ as the center, calculate the square of the difference between each data value and the average value, then add these squares of differences, finally divide by the number of data, and then take the square root: σ = \sqrt{\frac{\sum(Qj - μ)^2}{N}}, where N is the number of historical years;

[0046] (3) Divide the calculated standard deviation σ by the average value μ, and then multiply by 100%, to obtain the coefficient of variation CV: CV = \frac{σ}{μ}×100%.

[0047] Step 4: For the water source areas involved in the water supply plant, obtain the average water level data for the current month according to the water source monitoring RTU, determine the current reservoir capacity through the reservoir capacity - water level curve, calculate the cumulative reservoir capacity of all water source areas, and obtain the available water supply Gw.

[0048] Step 5: Accumulate the available water supply of the water source areas within this range according to Step 4, and compare it with the water supply volume for this month. That is, if Gw - Md > 0, then the water source areas meet the water supply demand; if Gw - Md < 0, then the water source areas do not meet the water supply demand, and a backup water source area is used for water supply.

[0049] Step 6: Based on the water supply volume Md and the available water supply Gw, formulate a scheduling plan for the water source areas and the backup water source areas, combine the scheduling plan with the PLC, and control the water plant pumping stations to switch pumps on and off to achieve the scheduling effect.

[0050] The finally determined water supply volume takes into account both the historical water use patterns and the requirements of the standard water demand, avoiding excessive or deficit water supply volumes, and improving the rationality and accuracy of water supply.

[0051] The calculation of the coefficient of variation comprehensively considers the dispersion degree of water supply volume data in the same month in recent years. By calculating the average value and standard deviation, the coefficient of variation is obtained, which can quantify the fluctuation of historical water supply volume data. In this way, when determining the water supply volume, it does not solely rely on the simple average value, but fully considers the data change trend and fluctuation degree, making the prediction and decision-making of the water supply volume more scientific and reliable.

[0052] The coefficient of variation is obtained by combining the local actual situation, which means it can reflect the particularity and actual changes of local water use conditions, enabling the planning and scheduling of the water supply system to better adapt to the local actual needs. Factors such as local water use habits and economic development levels will affect water use demand. Through the setting of the coefficient of variation, flexible adjustment can be made according to the characteristics of local historical data, improving the adaptability and reliability of the water supply system.

[0053] The setting of the coefficient of variation ultimately affects the determination of the water supply volume, and the water supply volume is associated with the scheduling plans of the water source and backup water source, and through the scheduling plan, it is combined with the PLC to control the switching of pumps in the water plant pumping station. An accurate coefficient of variation can make the prediction of the water supply volume more in line with the actual demand, thereby optimizing the control of the water plant pumping station, improving the operation efficiency of the water supply system, and reducing the operation cost.

[0054] In this embodiment, by constructing a water supply scheduling model, the scheduling work becomes more scientific, reasonable, and refined, enabling the rural water supply volume to meet the usage requirements of rural water supply and simultaneously satisfying domestic and industrial water supply.

[0055] This embodiment adopts a water supply scheduling model, greatly improving the accuracy of rural water supply and realizing the rational utilization of water resources. Through the application of model algorithms, the automatic scheduling and instruction execution of water resources are achieved. This greatly improves the water supply efficiency, saves the time of relevant personnel, and reduces the management cost.

[0056] Embodiment 2

[0057] This embodiment provides a water resource scheduling system for rural water supply, which specifically includes:

[0058] A water supply volume determination module, which is configured to: for a water supply plant, obtain the water supply volume in the current month of several historical years, and obtain the predicted water demand in the current month of the current year through average value calculation; obtain the number of water users and the monthly water use standard, and calculate the standard water demand in the current month of the current year; if the predicted water demand is greater than the standard water demand, the water supply volume is the predicted water demand; if the predicted water demand is less than the standard water demand, the water supply volume is adjusted using a variation coefficient on the basis of the predicted water demand; the variation coefficient is determined according to the variation of the water supply volume in the current month of several historical years;

[0059] A available water volume determination module, which is configured to: determine the available water volume for the water source areas involved in the water supply plant.

[0060] A scheduling module, which is configured to: formulate a scheduling plan based on the water supply volume of the water supply plant and the available water volume of the water source area.

[0061] Further, the variation coefficient is expressed as CV = frac{σ}{μ}×100%, where μ = frac{∑Qj}{N}, Qj is the water supply volume in the current month of a certain historical year, N is the number of historical years, and σ = sqrt{frac{Σ(Qj - μ)^2}{N}}.

[0062] It should be noted here that each module in this embodiment corresponds one by one to each step in Embodiment 1, and the specific implementation process is the same, so it will not be repeated here.

[0063] Embodiment 3

[0064] This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the steps in a water resource scheduling method for rural water supply as described in Embodiment 1 above.

[0065] Embodiment 4

[0066] This embodiment provides a computer device, as Figure 2 shown, including a computer-readable storage medium 1003, a processor 1001, a communication interface 1002, and a computer program stored on the computer-readable storage medium 1003 and executable on the processor 1001. Among them, the processor 1001, the communication interface 1002, and the computer-readable storage medium 1003 can be connected through a bus or other means. Among them, the communication interface 1002 is used to receive and send data, and when the processor 1001 executes the program, it implements the steps in a water resource scheduling method for rural water supply as described in Embodiment 1 above.

[0067] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A water resource scheduling method for rural water supply, characterized in that, Including: For a water supply plant, obtain the water supply volume in the current month of several historical years, and through average calculation, obtain the predicted water demand volume in the current month of the current year; obtain the number of water users and the monthly water use standard, and calculate the standard water demand volume in the current month of the current year; if the predicted water demand volume is greater than the standard water demand volume, the water supply volume is the predicted water demand volume; if the predicted water demand volume is less than the standard water demand volume, the water supply volume is adjusted using a variation coefficient on the basis of the predicted water demand volume; the variation coefficient is determined according to the variation of the water supply volume in the current month of several historical years; For the water source areas involved in the water supply plant, determine the available water supply volume; Based on the water supply volume of the water supply plant and the available water supply volume of the water source areas, formulate a scheduling plan.

2. The water resource scheduling method for rural water supply according to claim 1, characterized in that The water supply volume in the current month of a certain historical year is Qj = [(m1 + m2 + m3 +.....) / k] * 24 * n, where mi is the i-th water supply volume data in the current month of this historical year, the number of water supply volume data in the current month of this historical year is k, and n is the total number of days in the current month.

3. A water resource scheduling method for rural water supply according to claim 1, characterized in that, The standard water demand volume is the product of the number of water users and the monthly water use standard.

4. The water resource scheduling method for rural water supply according to claim 1, characterized in that If the predicted water demand volume is less than the standard water demand volume, the water supply volume Md = Qd + (Qx - Qd) * CV, where Qd is the predicted water demand volume, Qx is the standard water demand volume, and CV is the variation coefficient.

5. The water resource scheduling method for rural water supply according to claim 1, characterized in that, The variation coefficient is expressed as CV = frac{σ}{μ} × 100%, where μ = frac{∑Qj}{N}, Qj is the water supply volume in the current month of a certain historical year, N is the number of historical years, and σ = sqrt{frac{Σ(Qj - μ)^2}{N}}.

6. The water resource scheduling method for rural water supply according to claim 1, characterized in that For the water source areas involved in the water supply plant, determine the current reservoir capacity through the reservoir capacity - water level curve, calculate the cumulative reservoir capacity of all water source areas, and obtain the available water supply volume.

7. A water resource scheduling system for rural water supply, characterized in that, Including: A water supply volume determination module, which is configured to: for a water supply plant, obtain the water supply volume in the current month of several historical years, and through average calculation, obtain the predicted water demand volume in the current month of the current year; obtain the number of water users and the monthly water use standard, and calculate the standard water demand volume in the current month of the current year; if the predicted water demand volume is greater than the standard water demand volume, the water supply volume is the predicted water demand volume; if the predicted water demand volume is less than the standard water demand volume, the water supply volume is adjusted using a variation coefficient on the basis of the predicted water demand volume; the variation coefficient is determined according to the variation of the water supply volume in the current month of several historical years; An available water supply volume determination module, which is configured to: for the water source areas involved in the water supply plant, determine the available water supply volume; A scheduling module, which is configured to: based on the water supply volume of the water supply plant and the available water supply volume of the water source areas, formulate a scheduling plan.

8. The water resource scheduling system for rural water supply according to claim 7, characterized in that, The variation coefficient is expressed as CV = frac{σ}{μ} × 100%, where μ = frac{∑Qj}{N}, Qj is the water supply volume in the current month of a certain historical year, N is the number of historical years, and σ = sqrt{frac{Σ(Qj - μ)^2}{N}}.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by a processor, it implements the steps in a water resource scheduling method for rural water supply as described in any one of claims 1 - 6.

10. A computer device, comprising a computer-readable storage medium, a processor, and a computer program stored on the computer-readable storage medium and executable on the processor, characterized in that, When the processor executes the program, it implements the steps in a water resource scheduling method for rural water supply according to any one of claims 1-6.

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