KR102521311B1 - Water supply management system and method - Google Patents

Abstract

A water management system using a water meter according to an embodiment of the present invention relates to a water management system using a water meter capable of measuring water quality and flow rate, and is flow rate information that is information obtained by measuring the flow rate of water flowing in the water meter. A first sensor unit that generates a; a second sensor unit measuring the quality of water flowing in the water meter and generating water quality information; a communication unit configured to obtain the flow rate information from the first sensor unit and the water quality information from the second sensor unit; and a control unit controlling the first sensor unit, the second sensor unit, and the communication unit, and a water management system using a water meter.

Description

Water supply management system and method {Water supply management system and method}

The present invention relates to a water supply management system and method, and more particularly, to a water supply management system capable of measuring the flow rate and water quality of water supply flowing in a water supply pipe in real time and at the same time reducing the cost of energy used for transporting water supply. and methods.

In the operation of waterworks, about 95% of electricity costs are spent on pump operation, and since electricity costs increase every year due to a rise in electricity prices, the key to operating waterworks is to reduce electricity costs under stable water supply conditions. is the standard

Accordingly, there is an urgent need to efficiently apply and develop operation technology for waterworks based on the demand forecast for efficient waterworks operation and the schedule for optimal operation accordingly.

In developed countries, since the mid-1980s, in order to improve empirical water supply network design and operation technology based on the existing trial and error method, optimal water supply network design and operation technologies using mathematical programming tools have been developed.

Derecto's Aquadapt is the only pumping system optimization algorithm that has proven energy saving effects and works with the real-time intensive remote monitoring system (SCADA, Supervisory Control And Data Acquisition).

Through this, the process of optimal operation technology is that the water demand forecasting model estimates the future water demand based on the past water supply performance, transfers the result to the mathematical analysis model, and the mathematical analysis model converts the estimated amount of water demand into the pipe network analysis. The pumping station operation cost is calculated considering the efficiency and operating conditions of the pump through pipe network analysis.

The calculated pumping station operating cost is evaluated for satisfaction of the given condition through the optimal control model, and if the given condition is not satisfied, the value is re-evaluated by changing the pump combination and re-performing the pipe network analysis.

As such, the optimal control model and the mathematical analysis model perform iterative operations to find the optimal solution that satisfies the value of the objective function while satisfying the given boundary conditions and constraints.

On the other hand, since domestic waterworks facilities are different from those of foreign waterworks operators, when the above-described technology is applied domestically, it is difficult to suggest a different pump schedule from actual pump operation due to simplified pipe network modeling or to calculate a 24-hour operation plan. When it is impossible to optimize for demand or when there is a large change in demand at a specific time, various problems arise, such as difficulty in actively coping with it.

In order to solve this problem, Korean Registered Patent No. 10-1761859 B1 relatively accurately predicts the supply and demand information of the outflow flow of the waterworks business and calculates an operation management schedule for optimal 24-hour operation. Disclosed is a water supply operation management control system capable of real-time control to operate at maximum water supply and minimum energy cost and a control method therefor.

However, energy costs required for transporting water supply are still increasing.

The present invention is to solve the above problems, in order to reduce the energy cost required for transporting waterworks, the amount of water used in the water supply area is measured, and before being supplied from the water purification plant to the water supply area, the water supply is supplied to the reservoir where the water supply is stored. It is intended to provide a water supply management system and method that calculates information on the amount of water supply transfer and at the same time allows water supply to be transferred to the reservoir during a time period when energy costs (costs due to power consumption) are relatively low.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and problems not mentioned will be clearly understood by those skilled in the art from this specification and the accompanying drawings. .

A water supply management system and method according to an embodiment of the present invention measures the flow rate and water quality of water supply flowing in a water supply pipe in real time, and at the same time, the water supply management system and method can reduce the cost of energy used for transporting water supply. As for, the first flow rate information, which is information on the hourly flow rate of water supply in the first water supply area, which is a water supply area supplied with stored water supply through a drain pipe connected from the reservoir, and a water supply area directly supplied with water supply through a water pipe connected from a water purification plant a measurement unit for generating second flow rate information, which is information on the flow rate of water supply per hour of the second water supply zone; and a central server acquiring the first flow rate information and the second flow rate information from a measuring unit, wherein the central server is a communication unit receiving the first flow rate information and the second flow rate information from the measuring unit. ; an input unit for receiving cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir; a memory unit storing the first flow rate information, the second flow rate information, and the cost information; And based on the first flow rate information, the second flow rate information, third flow rate information that is information about the flow rate of water supply stored in the reservoir at the current time, and the cost information, the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe is It may be a water supply management system and method comprising a; calculation unit for calculating the flow rate adjustment index to be controlled.

According to the water supply management system and method according to an embodiment of the present invention, the water quality of the water supply supplied to the water supply area is measured, information on the water quality of the water supply is transmitted to the manager, and at the same time, energy is used at a relatively low cost. By doing so, there is an advantage of reducing the cost of energy used for transporting water supply through the water supply pipe.

Effects of the present invention are not limited to the above-mentioned effects, and effects not mentioned will be clearly understood by those skilled in the art from this specification and the accompanying drawings.

1 is a schematic diagram for explaining that a water supply management system is implemented according to an embodiment of the present invention.
Figure 2 is a schematic diagram for explaining a measurement unit constituting a water supply management system according to an embodiment of the present invention.
Figure 3 is a schematic diagram for explaining a process and a water supply area in which water supply of the water supply management system according to an embodiment of the present invention is supplied.
4 is a block diagram illustrating a central server and a measuring unit constituting a water supply management system according to an embodiment of the present invention;
Figure 5 is a data table for explaining that the transfer amount of water supply is adjusted by the water supply management system according to an embodiment of the present invention.
Figure 6 is a data table for explaining that the transfer amount of water supply is adjusted by the water supply management system according to an embodiment of the present invention.
7 is a flowchart illustrating a water supply management method according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention may add, change, delete, etc. other elements within the scope of the same spirit, through other degenerative inventions or the present invention. Other embodiments included within the scope of the inventive idea can be easily proposed, but it will also be said to be included within the scope of the inventive concept.

A water supply management system and method according to an embodiment of the present invention measures the flow rate and water quality of water supply flowing in a water supply pipe in real time, and at the same time, the water supply management system and method can reduce the cost of energy used for transporting water supply. As for, the first flow rate information, which is information on the hourly flow rate of water supply in the first water supply area, which is a water supply area supplied with stored water supply through a drain pipe connected from the reservoir, and a water supply area directly supplied with water supply through a water pipe connected from a water purification plant a measurement unit for generating second flow rate information, which is information on the flow rate of water supply per hour of the second water supply zone; and a central server acquiring the first flow rate information and the second flow rate information from a measuring unit, wherein the central server is a communication unit receiving the first flow rate information and the second flow rate information from the measuring unit. ; an input unit for receiving cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir; a memory unit storing the first flow rate information, the second flow rate information, and the cost information; And based on the first flow rate information, the second flow rate information, third flow rate information that is information about the flow rate of water supply stored in the reservoir at the current time, and the cost information, the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe is It may be a water supply management system comprising a; calculation unit for calculating a flow rate adjustment index to be controlled.

In addition, the calculation unit, based on the first flow rate information and the second flow rate information, first information that is information about the total daily water consumption in the water supply area including the first water supply area and the second water supply area and, based on the first information and the cost information, calculates second information, which is information about the energy cost required for transporting the water supply supplied to the water supply area, and then calculates the flow rate control index. can be a system.

In addition, the calculation unit may be a water supply management system that calculates the first information through Equation 1 below and calculates the second information through Equation 2 below.

[Equation 1]

[Equation 2]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

In addition, the communication unit receives temperature information, which is information about the temperature of a region where the reservoir is located, from an external device, and the calculation unit, based on the temperature information, when the value exceeds a preset value, calculates the temperature through Equation 3 below. It may be a water supply management system that calculates first information and calculates the second information through Equation 4 below.

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

α, β: constant

In addition, the calculation unit calculates the first information through Equation 5 below, based on the second flow rate information, when the flow rate of water supply used in a specific time zone in the second water supply area exceeds a preset range. And, it may be a water supply management system that calculates the second information through Equation 6 below.

[Equation 5]

[Equation 6]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

γ: constant

In addition, the measuring unit may be a water supply management system further comprising a sensor unit for measuring at least one of Ph, turbidity, temperature, and residual chlorine of the water supply supplied to the water supply area.

A water supply management method according to another embodiment of the present invention relates to a water supply management method capable of reducing the cost of transporting water supply, wherein the input unit is used for energy consumption for transporting water supply from a water purification plant to a reservoir. Cost information input step of receiving cost information that is information about; The first flow rate information, which is information on the hourly flow rate of water supply in the first water supply area, which is the water supply area where the communication unit receives the water supply stored in the reservoir, and the second water supply area, which is directly supplied with water supply through the water pipe connected from the water purification plant. a first flow rate information acquisition step of obtaining second flow rate information, which is information about a flow rate of water supply by time, from a measuring unit; A second flow rate information acquisition step in which the communication unit acquires third flow rate information, which is information about the flow rate of water supply stored in the reservoir at the present time, from the measuring device; and a flow rate calculation unit calculating a flow rate control index for controlling the flow rate of water supply supplied from a water purification plant to a water reservoir through a water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information. It may be a water supply management method comprising a; control index calculation step.

In addition, in the calculating of the flow rate control index, the calculation unit calculates the daily total water consumption in the water supply area including the first water supply area and the second water supply area based on the first flow rate information and the second flow rate information. (a) calculating first information that is information about; And after the step (b) of calculating second information, which is information about the energy cost required for the transfer of water supply supplied to the water supply area based on the first information and the cost information, to calculate the flow rate control index, It may be a water supply management method.

In addition, the calculation unit calculates the first information through Equation 1 below in the step (a), and calculates the second information through Equation 2 below in the step (b), water supply management it could be a way

[Equation 1]

[Equation 2]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

In addition, the communication unit receives temperature information, which is information about the temperature of the region where the reservoir is located, from an external device, and the calculation unit, based on the temperature information, if the value exceeds a preset value, in step (a), It may be a water supply management method of calculating the first information through Equation 3 below and calculating the second information through Equation 4 below in the step (b).

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour of water supply area

Energy Cost = total daily cost information for water supply districts

α, β: constant

In addition, the calculation unit, based on the second flow rate information, when the flow rate of water supply used in a specific time zone in the second water supply area exceeds a preset range, in step (a), Equation 5 below It may be a water supply management system that calculates the first information through and, in step (b), calculates the second information through Equation 6 below.

[Equation 5]

[Equation 6]

Qday = total water consumption per day in the water supply area

Qu = average daily water consumption of water supply district 1

Qn = average daily water consumption of water supply district 2

PU(i) = Coefficient of change in tap water consumption per time i of the first water supply district

Pn(i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply zone

Ecost = cost information per i hour of the water supply area

Energy Cost = total daily cost information for water supply districts

γ: constant

In addition, in the obtaining of the first flow rate information, the communication unit obtains water quality information that is information obtained by measuring at least one of Ph, turbidity, temperature, and residual chlorine of the water supply supplied to the water supply area by the measurement unit. Acquisition step; may be a water supply management method further comprising.

Elements having the same function within the scope of the same idea appearing in the drawings of each embodiment are described using the same reference numerals.

1 is a schematic diagram illustrating the implementation of a water supply management system according to an embodiment of the present invention.

2 is a schematic diagram illustrating a measurement unit constituting a water supply management system according to an embodiment of the present invention.

3 is a schematic diagram for explaining a process of supplying water and a water supply area of a water supply management system according to an embodiment of the present invention.

Figure 4 (a) to (b) is a block diagram for explaining the central server and measurement unit constituting the water supply management system according to an embodiment of the present invention.

5 is a data table for explaining that the amount of water supply is adjusted by the water supply management system according to an embodiment of the present invention.

6 is a data table for explaining that the amount of water supply is adjusted by the water supply management system according to an embodiment of the present invention.

7 is a flowchart illustrating a water supply management method according to an embodiment of the present invention.

In the accompanying drawings, in order to more clearly express the technical idea of the present invention, parts that are not related to the technical idea of the present invention or can be easily derived from those skilled in the art are simplified or omitted.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "electrically connected" with another element interposed therebetween. . In addition, when a part "includes" a certain component, this means that it may further include other components, not excluding other components, unless otherwise stated, and one or more other characteristics. However, it should be understood that it does not preclude the possibility of existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In this specification, a "unit" includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Further, one unit may be realized using two or more hardware, and two or more units may be realized by one hardware.

In this specification, some of the operations or functions described as being performed by a terminal or device may be performed instead by a server connected to the terminal or device. Likewise, some of the operations or functions described as being performed by the server may also be performed in a terminal or device connected to the corresponding server.

Hereinafter, a water supply management system and method according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7 .

First, briefly describing the process of supplying waterworks, as shown in FIG. 3, the water intake is a place where raw water of the waterworks is taken from the river, and the water is supplied to the water purification plant through a water pipe.

The water purification plant removes foreign substances from the raw water taken in, sterilizes it, and converts it into water supply.

Here, the water supply area (A) is a first water supply area (A1) receiving water supply through a drain pipe (P2) after the water supply generated in the water purification plant is stored as a reservoir through the water pipe (P1), and a water pipe connected to the water purification plant ( It may include a second water supply area (A2) directly supplied from the water pipe (P1) without passing through the reservoir from P1).

Therefore, water supply generated by raw water in the water purification plant may be supplied to a reservoir through the water pipe P1 or directly supplied to the second water supply area A2 through the water pipe P1.

On the other hand, the water supply management system (10, hereinafter referred to as the system) measures the flow rate and water quality of the water supply supplied to the water supply area (A), and the measurement unit 200 constituting the system 10 and the measurement unit 200 It consists of a central server 100 that obtains measurement information on the flow rate and water quality of tap water from ).

As can be seen in (a) of FIG. 4, the central server 100 includes a communication unit 120 that receives measurement information on the flow rate and water quality of water supply from the measurement unit 200, a memory unit 130 that stores the same, and A display unit 150 that outputs this, an input unit 140 that receives cost information, which is information about time-specific costs for energy use for transporting water supply from a water purification plant to a reservoir, an input unit 140 that receives measurement information about flow rate and the cost information Based on this, it includes a calculation unit 110 that calculates a flow control index to control the flow rate of tap water supplied from the water purification plant to the reservoir through the water pipe P1.

As shown in (b) of FIGS. 2 and 4, the measuring unit 200 may be installed in the water pipe P1 and the drain pipe P2, and the flow rate of the water supply transported from the inside through the flow sensor 210 can measure

The flow sensor 210 may be, for example, an audible sensor, and any known sensor capable of measuring the flow rate inside a water supply pipe (P, where the water supply pipe means both a water supply pipe and a drain pipe) is applicable.

The measurement unit 200 may also include a sensor unit including a Ph sensor 220, a temperature sensor 230, a turbidity sensor 240, a residual chlorine sensor 250, and an electrical conductivity sensor 260, Accordingly, water quality information of the water supply flowing in the water supply pipe (P, where the water supply pipe means both the water supply pipe and the drain pipe) can be measured.

The flow sensor 210 and the sensor unit may be controlled by the measurement control unit 270 mounted in the measurement unit 200, and the generated information is transmitted through a communication device (not shown) mounted in the measurement unit 200. It can be transmitted to the central server 100, and can also be controlled by the measurement control unit 270.

Furthermore, the measurement unit 200 may be provided with a solar panel 280 to supply power through photovoltaic power generation.

Meanwhile, the measuring unit 200 may be installed at a predetermined position of the drain pipe P2 to measure the flow rate of the water supply supplied to the first water supply area A1 with respect to the water supply stored in the reservoir.

To explain this in more detail, as can be seen in FIG. 3, the measuring unit 200 is installed at a predetermined position of the drain pipe P2, and the water supply supplied to the first water supply area A1 through the drain pipe P2. It is possible to generate the first flow rate information, which is information on the flow rate per hour.

In addition, as can be seen in FIG. 3, the measuring unit 200 is installed at a predetermined position of the water pipe P1, and the second water supply area A2 is directly supplied with water through the water pipe P1 connected from the water purification plant. It is possible to measure the flow rate of tap water supplied to the

Likewise, the measurement unit 200 is installed at a predetermined position of the water pipe P1, and is information about the flow rate of water supply supplied to the second water supply area A1 through the water pipe P1. 2 Flow rate information can be created.

Meanwhile, the communication unit 120 constituting the central server 100 may receive the first flow rate information and the second flow rate information from the measurement unit 200 .

The communication unit 120 may also obtain third flow rate information, which is information about the flow rate of water supply currently stored in the reservoir of the bookstore, from a flow meter installed in the reservoir.

Meanwhile, the input unit 140 constituting the central server 100 may receive cost information, which is information about cost per hour for energy use for transporting water supply from a water purification plant to a reservoir, from a manager.

Here, energy use for transporting waterworks may refer to energy (electricity) used when waterworks are supplied from a water purification plant to a reservoir through a water pipe (P1), for example, and power according to driving of a pump required for transporting waterworks. It can mean the cost of use.

Accordingly, in order to reduce energy consumption due to the transportation of water supply, the system 10 may receive input of the cost of electricity use per hour, which means the cost information, from a manager.

This is to allow the system 10 to reduce energy (power) usage costs according to a time-based differential pricing system for power usage.

The calculation unit 110 constituting the central server 100 controls the flow rate of water supply supplied to the reservoir through the water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information. Calculate the flow control index to be

To explain this in more detail, the water supply purified by the raw water taken in is supplied from the water purification plant to the reservoir through the water pipe (P1) and stored, or through the water pipe (P1) without passing through the reservoir, the second water supply area ( A2) is supplied directly.

Here, the flow rate of the water supply supplied to the second water supply area A2 does not pass through the reservoir, and therefore is directly supplied to the second water supply area A2 through the water pipe P1 without a storage facility for water supply. Although it cannot be adjusted because it is consumed, the flow rate of tap water supplied to the first water supply area A1 can be adjusted.

To explain this in more detail, the flow rate of tap water supplied from the water purification plant to the first water supply area (A1) is based on the flow rate of tap water consumed in the first water supply area (A1), and the flow rate of water supply supplied from the water purification plant to the reservoir. By adjusting the storage amount of water supply stored in the reservoir, the flow rate of water supply supplied to the first water supply area A1 is adjusted.

To explain this more specifically, the first water supply area (A1) is supplied with the water supply stored in the reservoir through the drain pipe (P2).

Here, since the maximum capacity (storage amount) at which the reservoir can store water supply is predetermined, the system 10 adjusts the flow rate of the water supply supplied from the water purification plant through the water pipe P1 to increase the water storage capacity of the reservoir. and by adjusting the storage amount of tap water in the reservoir, the flow rate of tap water supplied to the first water supply area A1 is adjusted.

For example, as can be seen in FIG. 5 , the system 10 can grasp the water consumption amount of the first water supply zone and the flow rate of the water supply stored in the reservoir for each time slot based on the first flow rate information and the third flow rate information. there is.

Therefore, the calculation unit 110 is based on the first flow rate information, which is flow rate information on tap water consumed per hour in the first water supply area A1, and the third flow rate information, which is information on the flow rate stored in the reservoir. An appropriate flow rate of water supply to be transported from the water purification plant to the reservoir through the water pipe P1 is calculated.

Furthermore, the calculation unit 110 calculates an optimal time period for reducing energy cost by considering the cost information, which is the electricity price for each time period according to the transfer of water supply to be transported from the water purification plant, based on the cost information. do.

For example, as can be seen in A and B in FIG. 5 , it is shown that 500t of water supply is transported between 04:00 and 05:00 by the flow control index calculated by the calculation unit 110.

That is, the flow control index may mean an appropriate flow rate of water supply to be transported from the water purification plant to the reservoir through the water pipe P1 calculated by the calculation unit 110 and an appropriate time considering the cost of the transfer.

Therefore, the manager receives the flow rate control index from the central server through the manager terminal E1 such as a smartphone or PC, and controls the water pipe P1 connected to the water purification plant and the reservoir.

That is, the manager receives the flow rate control index from the system 10 and adjusts the pump of the water pipe P1 connected to the water purification plant and the reservoir according to the flow rate of the water supply supplied from the water purification plant to the reservoir in a specific time zone. will control

That is, the flow control index may mean an appropriate flow rate of water supply to be transported from the water purification plant to the reservoir through the water pipe P1 calculated by the calculation unit 110 and an appropriate time considering the cost of the transfer.

As another example, as can be seen in E and D in FIG. 6, it shows that 500t of waterworks was transported between 23:00 and 24 by the flow control index calculated by the calculation unit 110.

In FIG. 6, considering the cost, it is reasonable that water supply is transported between 24:00 and 0:00, but the flow control index is set at 24:00 and 0:00 in the second water supply area A2 through the water pipe P1. Since the amount of water used must also be included in the calculation, 500t of tap water was transported between 23:00 and 24:00.

This is because the water supply transported through the water pipe P1 can be supplied to the reservoir and to the second water supply area A2 at the same time.

Accordingly, the flow rate control index may be calculated by including the first flow rate information, the second flow rate information, the third flow rate information, and the cost information.

However, the numerical values described in the tables of FIGS. 5 and 6 are only examples to aid understanding of the system 10, and the actual numerical values may be different.

On the other hand, the calculation unit 110, for example, based on the first flow rate information and the second flow rate information, information on the daily total water consumption in a water supply area including the first water supply area and the second water supply area first information is calculated, and second information, which is information on the energy cost required for transporting the waterworks supplied to the water supply area, is calculated based on the first information and the cost information, and then the flow control index is calculated. can be calculated

To explain this in more detail, the calculation unit 110 includes the first water supply area A1 and the second water supply area A2 based on the first flow rate information and the second flow rate information accumulated as data. First information, which is information on the total amount of daily tap water in the water supply area (A), can be calculated.

As can be seen in FIG. 3, since the water pipe P1 supplied to the first water supply area A1 and the second water supply area A2 may be the same water pipe P1, the water transported from the water purification plant to the reservoir This is because the amount of waterworks consumed in the second water supply area should be considered.

Accordingly, the calculation unit 110 calculates the first information through Equation 1 below, and calculates the second information through Equation 2 below.

[Equation 1]

[Equation 2]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

Here, Q _u , the daily average water supply consumption of the first water supply zone, and Q _n , the daily average water supply consumption of the second water supply zone, are calculated by the calculation unit 110 from the obtained first flow rate information and the second flow rate information. If there is accumulated data, it is irrelevant even if it is input directly from the manager.

The P _U (i) and P _n (i) may mean a coefficient of change for each time i calculated by the calculator based on the first flow rate information and the second flow rate information, and their values are 0 and 1 It can be any value in between.

Therefore, the calculation unit 110 may calculate an appropriate flow rate of water supply to be transferred from the water purification plant to the reservoir through the water pipe P1 through Equations 1 and 2, based on the cost information. The optimal time period for reducing energy cost is calculated in consideration of the cost information, which is the electricity rate for each time period according to the transfer of water supply to be transported from the water purification plant, and the flow control index is generated and notified to the manager.

This is to adjust the flow rate of the water supply supplied to the first water supply region A1 by adjusting the storage amount of the reservoir because the first water supply region A1 receives water supply through the reservoir.

However, when the second water supply area A2 does not exist, such as in a large city, Q _n , the daily average water supply consumption of the second water supply area A2 included in Equations 1 and 2, is '0'. Of course, it can be input as a value of .

Meanwhile, the communication unit 120 constituting the central server 100 may receive temperature information, which is information about the temperature of an area where the reservoir is located, from an external device such as a server of the Korea Meteorological Administration.

Here, the calculation unit 110 calculates the first information through Equation 3 below, and the second information through Equation 4 below, when the temperature information exceeds a preset value in a specific time zone based on the temperature information. yields

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour of water supply area

Energy Cost = total daily cost information for water supply districts

α, β: constant

This is because, based on the temperature information of the area where the reservoir is located, if the preset temperature is exceeded at a specific time, the amount of evaporation of the water supply stored in the reservoir may be relatively large, and therefore, the flow rate of water supply to be supplied to the reservoir must also be increased. Because.

Therefore, in order to calculate a more accurate flow control index, the calculation unit 110 calculates the first information through Equation 3 when the temperature exceeds a preset temperature in a specific time zone based on the obtained temperature information, , the second information is calculated through Equation 4 above.

Accordingly, the values of α and β, which are constants, may be set to a value greater than 1.

However, when the temperature is below the predetermined temperature, the values of α and β, which are constants, may be set to 1.

Furthermore, the communication unit 120 may receive weather information and humidity information of the area where the reservoir is located, and may set values of constants α and β by reflecting them.

On the other hand, the calculation unit 110, based on the second flow rate information, when the flow rate of water supply used in a specific time zone in the second water supply area A2 exceeds a preset range, the calculation unit 110 calculates the flow rate through Equation 5 below. The first information is calculated, and the second information is calculated through Equation 6 below.

[Equation 5]

[Equation 6]

Qday = total water consumption per day in the water supply area

Qu = average daily water consumption of water supply district 1

Qn = average daily water consumption of water supply district 2

PU(i) = Coefficient of change in tap water consumption per time i of the first water supply district

Pn(i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply zone

Ecost = cost information per i hour of the water supply area

Energy Cost = total daily cost information for water supply districts

γ: constant

This means that when the flow rate supplied to the water pipe (P1) is greater than the average flow rate at a specific time (for example, 07 to 09:00) when the amount of water supply in the second water supply zone is relatively large, through the same water pipe (P1). This is because the flow rate of tap water supplied to the first water supply zone must also be increased.

Therefore, in order to calculate a more accurate flow rate control index, the calculation unit 110 calculates the first information through Equation 5 when it exceeds a predetermined range in a specific time zone based on the acquired second flow rate information. and the second information is calculated through Equation 6 above.

Accordingly, the value of γ, which is a constant, may be set to a value greater than 1.

However, when it is less than the preset range, the value of γ, which is a constant, may be set to 1.

This is also to allow the calculation unit 110 to calculate a more accurate flow rate control index.

A water supply management method for reducing energy use according to another embodiment of the present invention may relate to a method for implementing the above water supply management system, and the input unit 140 generates energy for transporting water supply from a water purification plant to a reservoir Cost information input step (S100) of receiving cost information, which is information on hourly cost for use, and water supply of the first water supply area (A1), which is a water supply area (A) in which the communication unit 120 receives water supply stored in the reservoir. Obtaining first flow rate information, which is information on the flow rate per hour, and second flow rate information, which is information on the flow rate per hour of the water supply in the second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from the water purification plant, from the measuring unit A first flow rate information acquisition step (S200), a second flow rate information acquisition step (S300) in which the communication unit 120 obtains third flow rate information, which is information about the flow rate of water supply stored in the reservoir at the current time, from the measuring device (S300). (110) calculates a flow rate control index to control the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information A flow control index calculation step (S400) may be included.

In the flow rate control index calculation step (S400), the calculation unit based on the first flow rate information and the second flow rate information, the daily total amount of water supply in the water supply area including the first water supply area and the second water supply area (a) step (S410) of calculating first information that is information about and second information that is information about energy cost required for transporting water supply to the water supply area based on the first information and the cost information After step (b) of calculating (S420), the flow control index may be calculated.

The calculation unit 110 may calculate the first information through Equation 1 below in step (a), and calculate the second information through Equation 2 below in step (b). .

[Equation 1]

[Equation 2]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour in the water supply area

Energy Cost = total daily cost information for water supply districts

In addition, the communication unit 120 receives temperature information, which is information about the temperature of the region where the reservoir is located, from an external device, and the calculation unit 110, based on the temperature information, if the value exceeds a preset value, the In step (a) (S410), the first information may be calculated through Equation 3 below, and in step (b) (S420), the second information may be calculated through Equation 4 below.

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area

Q _u = average daily water consumption of water supply district 1

Q _n = average daily water consumption of water supply district 2

P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district

P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district

E _cost = Cost information per i hour of water supply area

Energy Cost = total daily cost information for water supply districts

α, β: constant

In addition, the calculation unit 110, based on the second flow rate information, when the flow rate of water supply used in a specific time zone in the second water supply area exceeds a preset range, in step (a), the following math The first information may be calculated through Equation 5, and in the step (b), the second information may be calculated through Equation 6 below.

[Equation 5]

[Equation 6]

Qday = total water consumption per day in the water supply area

Qu = average daily water consumption of water supply district 1

Qn = average daily water consumption of water supply district 2

PU(i) = Coefficient of change in tap water consumption per time i of the first water supply district

Pn(i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply zone

Ecost = cost information per i hour of the water supply area

Energy Cost = total daily cost information for water supply districts

γ: constant

In addition, in the first flow rate information acquisition step (S200), at least one of Ph, turbidity, temperature, and residual chlorine of the water supply supplied to the water supply area by the communication unit 120 is information measured by the measurement unit, and water quality A water quality information obtaining step ( S210 ) of obtaining information may be further included.

In the above, the configuration and characteristics of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It is apparent to those skilled in the art, and therefore such changes or modifications are intended to fall within the scope of the appended claims.

10: water supply management system
100: central server
110: calculation unit, 120: communication unit, 130: memory unit, 140: input unit, 150: display unit
200: measuring unit
210: quantity sensor, 220: Ph sensor, 230: temperature sensor, 240: turbidity sensor
250: residual chlorine sensor, 260: electrical conductivity sensor, 270: measurement control unit
A: water supply area
A1: 1st water supply area, A2: 2nd water supply area
P: water pipe
P1: water pipe, P2: drain pipe

Claims (12)

In the water supply management system that reduces energy use,
First flow information, which is information about the hourly flow rate of water supply in the first water supply area, which is a water supply area supplied with stored water supply through a drain pipe connected to the reservoir, and
a measuring unit that generates second flow rate information, which is information about the flow rate of water supply per hour in a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant; and
And a central server for obtaining the first flow rate information and the second flow rate information from the measurement unit,
The central server,
a communication unit receiving the first flow rate information and the second flow rate information from the measurement unit;
an input unit for receiving cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
a memory unit storing the first flow rate information, the second flow rate information, and the cost information; and
Based on the first flow rate information, the second flow rate information, third flow rate information that is information on the flow rate of water supply stored in the reservoir at the current time, and the cost information, the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe is controlled. Including; calculation unit for calculating the flow rate control index to be
The calculation unit,
Based on the first flow rate information and the second flow rate information,
Calculate first information, which is information about the total daily water consumption in the water supply area including the first water supply area and the second water supply area;
Based on the first information and the cost information,
After calculating the second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area, the flow control index is calculated;
The calculation unit,
The first information is calculated through Equation 1 below,
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
The first information is calculated through Equation 3 below,
Calculating the second information through Equation 4 below,
water supply management system.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area
Q _u = average daily water consumption of water supply district 1
Q _n = average daily water consumption of water supply district 2
P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district
P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district
E _cost = Cost information per i hour of water supply area
Energy Cost = total daily cost information for water supply districts
α, β: constant
delete delete delete In the water supply management system that reduces energy use,
First flow information, which is information about the hourly flow rate of water supply in the first water supply area, which is a water supply area supplied with stored water supply through a drain pipe connected to the reservoir, and
a measuring unit that generates second flow rate information, which is information about the flow rate of water supply per hour in a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant; and
And a central server for obtaining the first flow rate information and the second flow rate information from the measurement unit,
The central server,
a communication unit receiving the first flow rate information and the second flow rate information from the measurement unit;
an input unit for receiving cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
a memory unit storing the first flow rate information, the second flow rate information, and the cost information; and
Based on the first flow rate information, the second flow rate information, third flow rate information that is information on the flow rate of water supply stored in the reservoir at the current time, and the cost information, the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe is controlled. Including; calculation unit for calculating the flow rate control index to be
The calculation unit,
Based on the first flow rate information and the second flow rate information,
Calculate first information, which is information about the total daily water consumption in the water supply area including the first water supply area and the second water supply area;
Based on the first information and the cost information,
After calculating the second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area, the flow control index is calculated;
The calculation unit,
The first information is calculated through Equation 1 below,
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
The first information is calculated through Equation 3 below,
The second information is calculated through Equation 4 below,
The calculation unit,
Based on the second flow rate information,
When the flow rate of the water supply used in the second water supply zone for a specific time period exceeds the preset range,
The first information is calculated through Equation 5 below,
Calculating the second information through Equation 6 below,
water supply management system.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

[Equation 5]

[Equation 6]

Qday = total water consumption per day in the water supply area
Qu = average daily water consumption of water supply district 1
Qn = average daily water consumption of water supply district 2
Pu(i) = Coefficient of change in tap water consumption per i hour of the first water supply district
Pn(i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply zone
Ecost = cost information per i hour of the water supply area
Energy Cost = total daily cost information for water supply districts
α,β,γ: constant
In the water supply management system that reduces energy use,
First flow information, which is information about the hourly flow rate of water supply in the first water supply area, which is a water supply area supplied with stored water supply through a drain pipe connected to the reservoir, and
a measuring unit that generates second flow rate information, which is information about the flow rate of water supply per hour in a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant; and
And a central server for obtaining the first flow rate information and the second flow rate information from the measurement unit,
The central server,
a communication unit receiving the first flow rate information and the second flow rate information from the measurement unit;
an input unit for receiving cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
a memory unit storing the first flow rate information, the second flow rate information, and the cost information; and
Based on the first flow rate information, the second flow rate information, third flow rate information that is information on the flow rate of water supply stored in the reservoir at the current time, and the cost information, the flow rate of water supply supplied from the water purification plant to the reservoir through the water pipe is controlled. Including; calculation unit for calculating the flow rate control index to be
The calculation unit,
Based on the first flow rate information and the second flow rate information,
Calculate first information, which is information about the total daily water consumption in the water supply area including the first water supply area and the second water supply area;
Based on the first information and the cost information,
After calculating the second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area, the flow control index is calculated;
The calculation unit,
The first information is calculated through Equation 1 below,
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
The first information is calculated through Equation 3 below,
The second information is calculated through Equation 4 below,
The measuring unit,
Further comprising a sensor unit for measuring at least one of Ph, turbidity, temperature, and residual chlorine of the water supply supplied to the water supply zone,
water supply management system.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area
Q _u = average daily water consumption of water supply district 1
Q _n = average daily water consumption of water supply district 2
P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district
P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district
E _cost = Cost information per i hour of water supply area
Energy Cost = total daily cost information for water supply districts
α, β: constant

In the water supply management method for reducing energy use,
a cost information input step in which an input unit receives cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
First flow information, which is information about the flow rate of water supply per hour of the first water supply area, which is a water supply area where the communication unit receives the water supply stored in the reservoir, and
A first flow rate information acquisition step of obtaining second flow rate information, which is information about the flow rate of water supply per hour of a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant, from a measuring unit;
A second flow rate information acquisition step in which the communication unit acquires third flow rate information, which is information about the flow rate of water supply stored in the reservoir at the present time, from the measuring device; and
A flow control unit that calculates a flow control index for controlling the flow rate of tap water supplied from a water purification plant to a reservoir through a water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information. Including; index calculation step,
The flow control index calculation step,
Based on the calculation unit the first flow rate information and the second flow rate information,
(a) calculating first information, which is information about the total amount of water used per day in a water supply area including the first water supply area and the second water supply area; and
Based on the first information and the cost information
After the step (b) of calculating second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area,
Calculate the flow control index,
The calculation unit,
In step (a),
The first information is calculated through Equation 1 below,
In step (b),
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
In the step (a), the first information is calculated through Equation 3 below,
In the step (b), calculating the second information through Equation 4 below,
How to manage water supply.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area
Q _u = average daily water consumption of water supply district 1
Q _n = average daily water consumption of water supply district 2
P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district
P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district
E _cost = Cost information per i hour of water supply area
Energy Cost = total daily cost information for water supply districts
α, β: constant
delete delete delete In the water supply management method for reducing energy use,
a cost information input step in which an input unit receives cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
First flow information, which is information about the flow rate of water supply per hour of the first water supply area, which is a water supply area where the communication unit receives the water supply stored in the reservoir, and
A first flow rate information acquisition step of obtaining second flow rate information, which is information about the flow rate of water supply per hour of a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant, from a measuring unit;
A second flow rate information acquisition step in which the communication unit acquires third flow rate information, which is information about the flow rate of water supply stored in the reservoir at the present time, from the measuring device; and
A flow control unit that calculates a flow control index for controlling the flow rate of tap water supplied from a water purification plant to a reservoir through a water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information. Including; index calculation step,
The flow control index calculation step,
Based on the calculation unit the first flow rate information and the second flow rate information,
(a) calculating first information, which is information about the total amount of water used per day in a water supply area including the first water supply area and the second water supply area; and
Based on the first information and the cost information
After the step (b) of calculating second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area,
Calculate the flow control index,
The calculation unit,
In step (a),
The first information is calculated through Equation 1 below,
In step (b),
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
In the step (a), the first information is calculated through Equation 3 below,
In the step (b), the second information is calculated through Equation 4 below,
The calculation unit,
Based on the second flow rate information,
When the flow rate of the water supply used in the second water supply zone for a specific time period exceeds the preset range,
In the step (a), the first information is calculated through Equation 5 below,
In step (b), calculating the second information through Equation 6 below,
How to manage water supply.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

[Equation 5]

[Equation 6]

Qday = total water consumption per day in the water supply area
Qu = average daily water consumption of water supply district 1
Qn = average daily water consumption of water supply district 2
PU(i) = Coefficient of change in tap water consumption per time i of the first water supply district
Pn(i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply zone
Ecost = cost information per i hour of the water supply area
Energy Cost = total daily cost information for water supply districts
α,β,γ: constant
In the water supply management method for reducing energy use,
a cost information input step in which an input unit receives cost information, which is information about hourly costs for energy use for transporting water supply from a water purification plant to a reservoir;
First flow information, which is information about the flow rate of water supply per hour of the first water supply area, which is a water supply area where the communication unit receives the water supply stored in the reservoir, and
A first flow rate information acquisition step of obtaining second flow rate information, which is information about the flow rate of water supply per hour of a second water supply area, which is a water supply area directly supplied with water supply through a water pipe connected from a water purification plant, from a measuring unit;
A second flow rate information acquisition step in which the communication unit acquires third flow rate information, which is information about the flow rate of water supply stored in the reservoir at the present time, from the measuring device; and
A flow control unit that calculates a flow control index for controlling the flow rate of tap water supplied from a water purification plant to a reservoir through a water pipe based on the first flow rate information, the second flow rate information, the third flow rate information, and the cost information. Including; index calculation step,
The flow control index calculation step,
Based on the calculation unit the first flow rate information and the second flow rate information,
(a) calculating first information, which is information about the total amount of water used per day in a water supply area including the first water supply area and the second water supply area; and
Based on the first information and the cost information
After the step (b) of calculating second information, which is information on the energy cost required for transporting the water supply supplied to the water supply area,
Calculate the flow control index,
The calculation unit,
In step (a),
The first information is calculated through Equation 1 below,
In step (b),
The second information is calculated through Equation 2 below,
The communication department,
Receives temperature information, which is information about the temperature of the area where the reservoir is located, from an external device,
The calculation unit,
Based on the temperature information,
If it exceeds the preset value,
To reflect the evaporation of tap water stored in the reservoir,
In the step (a), the first information is calculated through Equation 3 below,
In the step (b), the second information is calculated through Equation 4 below,
The first flow rate information obtaining step,
Further comprising,
How to manage water supply.

[Equation 1]

[Equation 2]

[Equation 3]

[Equation 4]

Q _day = Total water consumption per day in the water supply area
Q _u = average daily water consumption of water supply district 1
Q _n = average daily water consumption of water supply district 2
P _U (i) = Coefficient of change in tap water consumption per hour i of the 1st water supply district
P _n (i) = Coefficient of change in tap water consumption per i hour of the 2nd water supply district
E _cost = Cost information per i hour of water supply area
Energy Cost = total daily cost information for water supply districts
α, β: constant

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