KR101684696B1 - Device for predicting demanded quantity and deciding supplied quantity of municipal water using all-in-one smart watermeter - Google Patents

Abstract

The smart water meter is used to estimate the amount of water demanded by the city and to determine the amount of water to be supplied. The smart water meter integrates a water meter and a chamber in a conventional water meter function to measure a water quality and a flow rate, A city water supply and drainage device for storing the water supplied from the city water supply and treatment facility; a city water supply and drainage device for storing the water supplied from the city water supply and treatment facility; A smart water meter for measuring an amount of city water supplied from the city water supply reservoir; and a demand amount prediction and supply amount calculating unit for predicting the demand amount and determining the supply amount based on the data measured from the smart water meter. According to the system for predicting the amount of water demanded by the city and the apparatus for determining the amount of water using the chamber-integrated smart water meter having the above-described structure, the water demand amount and the water circulation rate are improved by using the real time monitoring technology, By lowering water demand, utilization efficiency of water intake and so on can be increased, and new construction can be reduced, saving water and reducing costs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smart water meter,

The present invention relates to a system and method for predicting and estimating the amount of water demanded by a city using a smart water meter, and more particularly, to a system and method for integrating a water meter and a chamber in a conventional water meter function to form a single chamber for measuring water quality and flow rate The present invention relates to an apparatus for predicting the demanded amount of city water using a chamber-integrated smart water meter and determining the supply amount.

In recent years, interest in water resources has been increasing as one of the important factors of the earth resources. Water is one of the important resources that are basically required for human activities, and the activities to manage and protect water resources are increasing due to the acceleration of industrialization, the increase of domestic wastewater, and the change of climate environment.

In particular, it is expected that the supply capacity of the water will decrease due to the increase of frequency of drought caused by the change of rainfall pattern. However, due to environmental and economic problems, it is difficult to secure water resources by construction of large dams, And water management costs are rising due to leakage and high energy consumption due to inefficient operation.

In addition, it is required to develop a management system capable of efficiently supplying water and considering the water secured from multiple water sources, as well as existing waterworks, due to an increase in interest in multiple sources such as sewage reuse water and rainwater.

In other words, to efficiently manage water, collecting and managing information on the quantity and quality of available water is a top priority, and it is possible to forecast and supply the demand for city water using smart water meters to overcome limitations of unilateral demand management. Network system development is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a system capable of measuring the demanded quantity of municipal water in real time and estimating the supplied quantity.

According to an aspect of the present invention, there is provided an apparatus for predicting and estimating a demand for city water using a smart water meter, comprising: a city water supply processing facility for treating water supplied from a city water source with city water; A city water supply / drainage reservoir temporarily storing and supplying the city water treated by the city water supply / treatment facility; A supply pipe for supplying the city water from the city water supply / drainage compartment; A plurality of smart water meters provided in the supply unit and measuring parameters related to the city water to be supplied to the supply paper, and a smart water meter for estimating the demand amount of the city water according to the result measured by the smart water meter, And a demand quantity forecasting and supply quantity calculating unit for controlling the supply water treatment facility and the city water supply / discharge reservoir.

The apparatus for predicting and determining the amount of water demanded by a smart water meter according to the present invention includes a gateway for receiving data measured by a smart water meter provided in each block of a supply site and data for collecting data transmitted to the gateway It is preferable to include a logger.

The demand quantity forecasting and supply quantity calculating unit of the present invention preferably estimates the demand quantity by a data granulation method, a Kalman filter modeling method, or a neural network method.

Preferably, the demand forecasting and supply amount calculating unit of the present invention predicts the demand amount by the hourly demand amount and the day demand amount by the urban water usage amount in units of block based on the data collected at intervals of time in the smart water meter.

The smart water meter of the present invention includes a body portion including a plurality of chambers; A sensor unit that is provided in the body unit and measures parameters related to the oil flow, and a controller that is connected to the body unit and generates and stores power by using the flow of water in the body unit, And a head unit for processing data.

The body portion of the present invention comprises: a lower chamber connected to an inlet pipe; An upper chamber positioned above the lower chamber and communicating with the lower chamber, and an intermediate chamber positioned between the lower chamber and the upper chamber.

It is preferable that a communication valve is provided between the upper chamber and the lower chamber of the present invention to selectively open and close the flow of water between the upper chamber and the lower chamber.

The sensor unit of the present invention preferably includes a water quality sensor, a flow rate sensor, or a temperature sensor.

Preferably, the water quality sensor of the present invention is provided in the lower chamber, and the flow rate sensor is provided in the intermediate chamber.

Preferably, the head unit of the present invention includes a power unit for generating and storing power using flow of water in the body, and a central control unit for processing data measured by the sensor unit and controlling the power unit Do.

The head unit of the present invention includes a memory unit for storing data measured by the sensor unit; A communication unit for transmitting / receiving data measured by the sensor unit to the outside, and a display unit for displaying a result value processed by the central control unit.

The power unit of the present invention preferably includes a power generator unit that generates power using the rotational force of the rotating unit that is rotated by the water flowing through the inside of the body unit, and a battery unit that stores the power generated by the power generator unit.

The battery unit of the present invention preferably includes a main battery for storing the power generated by the generator unit, and an auxiliary battery for discharging the main battery.

The central control unit of the present invention preferably opens the communication valve and rotates the rotation unit using the power stored in the power unit when the external environment reaches the freezing condition.

The central control unit of the present invention is preferably configured not to calculate the flow rate data sensed by the flow rate sensor during the above-mentioned freeze condition.

According to the present invention, it is possible to obtain integrated control, operation and management technology such as improvement of water demand and water circulation rate by using real-time monitoring technology, Water and water demand by lowering the peak time water demand through the exchange of information between the users and the users, and it is possible to save the water and reduce the cost by reducing the construction of the new construction, and the integrated management system of smart water based on bi- There is an advantage in improving the soundness of utilization of urban water resources and saving energy.

1 is a sectional view showing a preferred embodiment of an apparatus for predicting the amount of water demanded in a city and a supply amount determining apparatus using the smart water meter according to the present invention.
2 is a sectional view showing a smart water meter of a city water demand forecasting apparatus and a supply amount determining apparatus using the smart water meter according to the present invention.
3 is a schematic view showing a configuration of a smart water meter of a city water demand forecasting and supply amount determining device using a smart water meter according to the present invention.
4 is a sectional view showing a mode of preventing the freezing of the smart water meter of the device for predicting the amount of water demanded by the city and using the smart water meter according to the present invention.
FIG. 5 is a flowchart sequentially illustrating a mode of preventing the freezing of the smart water meter of the device for predicting the amount of water demanded by the city and using the Smart Water Meter according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an apparatus for predicting and estimating the amount of water demanded by a city using the smart water meter according to the present invention.

The apparatus for predicting the amount of demanded city water and determining the amount of supplied water according to the present invention is configured to determine the amount of supply of the city water by measuring the amount of city water to be consumed by using the smart water meter 100 and estimating the demanded amount of city water based on the result.

The water supplied from the city water source 10 flows into the city water supply processing facility 20 and is processed to be used as city water. The municipal water supply and treatment facility 20 may be composed of a treatment facility including purification, filtration, chemical treatment, and the like so that general water can be used as municipal water.

The municipal water treated in the municipal water supply and treatment facility 20 is temporarily stored in the municipal water supply and discharge reservoir 30 and then supplied to the respective supply papers 40. Each feeder 40 is divided into blocks, and a plurality of smart water meters 100 are connected to each block of the feeder 40.

The smart water meter 100 measures the flow rate and water quality of city water supplied to each supply site 40 and the measurement data measured by the smart water meter 100 includes a gateway 50 classified by each block To the data logger (60).

The data logger 60 integrates the measurement data measured by each smart water meter 100 and transmits it to the demand amount prediction and supply amount calculation unit 70. The demand forecasting and supply amount calculating unit 70 is configured to predict the demand amount of city water based on the measurement data measured by the smart water meter 100 and calculate the supply amount accordingly.

The demand quantity forecasting and supply quantity calculating unit 70 can estimate the quantity demanded by the data granulation technique, the Kalman filter model technique, the neural network technique or the like, but is not limited thereto. The demand forecasting and supply amount calculating unit 70 may estimate the amount of demand for each hour and the demand amount for each day by using the amount of city water used in blocks as basic data based on the data collected at intervals of time unit.

When the demand quantity is predicted by the demand quantity forecasting and supply quantity calculating unit 70, the supply quantity is calculated and the result is transmitted to the central management center 810. In addition, the demand forecasting and supply amount calculating unit 70 may transmit the result to the individual user using the mobile communication network.

The central management center 810 adjusts the processing capacity of the city water supply processing facility 20 and the drainage capacity of the city water supply and storage unit 30 according to the results derived by the demand amount prediction and supply amount calculation unit 70 .

The central management center 810 calculates the production time of the city water supply quantity calculated by the demand quantity forecasting and supply quantity calculation unit 70 and the time required to supply the water to the demand place, The processing capacity, and the drainage capacity of the city water supply / drainage compartment 30 are determined.

FIGS. 2 to 4 show a preferred embodiment of the chamber-integrated smart water meter used in the city water demand forecasting and supply amount determining apparatus using the smart water meter according to the present invention.

As shown, the smart water meter 100 is connected between the inlet pipe 20 and the outlet pipe 30, and the smart water meter 100 includes a body 110 divided into a plurality of chambers, The speed of the flowing water can be temporarily delayed by using the chamber inside the body portion 110. [

The body 110 includes a lower chamber 111 communicating with the inflow pipe 20, an upper chamber 113 connected to an upper end of the lower chamber 111 and communicating with the outflow pipe 20, And an intermediate chamber 115 provided between the lower chamber 111 and the upper chamber 113.

A separate connection means such as a screw connection for connecting the connection between the lower chamber 111 and the inlet pipe 20 and the connection between the upper chamber 113 and the outlet pipe 20 may be provided .

The intermediate chamber 115 has a lower end extending into the lower chamber 111 and an upper end extending into the upper chamber 113. The upper and lower ends of the intermediate chamber 115 are both opened. Therefore, the water flowing from the lower chamber 111 flows into the upper chamber 113 through the intermediate chamber 115, and then flows out through the outlet pipe 20.

A communication valve 120 for selectively communicating the upper chamber 113 and the lower chamber 111 is provided at an interface 117 between the upper chamber 113 and the lower chamber 111. The communication valve 120 is controlled by a central control unit 600 to be described below and a fluid is directly supplied between the upper chamber 113 and the lower chamber 111 depending on whether the communication valve 120 is open or not . ≪ / RTI >

 The body part 110 includes a sensor part 200 for sensing flow rate and quality of water flowing through the inside of the body part 110. The sensor unit 200 may be configured to measure all the parameters related to the water flow. The sensor unit 200 preferably includes a water quality sensor 210 for measuring the water quality, a flow sensor 220 for measuring the flow rate, and a temperature sensor 230).

The water quality sensor 210 is installed on the bottom surface of the lower chamber 111 and measures water quality characteristics of turbidity, residual chlorine, pressure, pH, and electrical conductivity

A fresh water portion 119 is formed between the lower chamber 111 and the intermediate chamber 115 so as to temporarily stop flowing water. The bottom of the lower chamber 111, which is the lower side of the fresh water portion 119, The water quality sensor 210 is installed. Therefore, since the water quality is measured in the state where the fresh water is temporarily staying in the fresh water portion 119, it is possible to reduce the water quality measurement error caused by the passing of the run water quickly.

The flow sensor 220 may be disposed in the intermediate chamber 115. Since the flow of water through the inside of the intermediate chamber 115 temporarily reduces the flow velocity of the flowing water, the flow measurement error can be reduced.

The flow sensor 220 may be configured in various forms. 2, the flow sensor 220 is an ultrasonic type flow meter installed on the inner wall of the intermediate chamber 115. When the ultrasonic wave is generated from one side, the flow rate sensor 220 senses the flow rate on the other side and measures the flow rate have.

The temperature sensor 230 is for measuring the water temperature and may be provided on the inside or outside of the body 110, preferably inside the intermediate chamber 115.

A battery, a generator, and other electronic control devices for driving the apparatus are mounted on the upper surface of the body 110 to generate and store power using water in the body 110, A head unit 300 for processing data measured by the head unit 300 is connected.

A power unit 400 is provided on a surface of the head unit 300 which is in contact with the upper chamber 113. The power unit 400 includes a power generator unit 410 for generating power using the power of flowing water through the inside of the body unit 110 and a generator unit 410 for storing the power generated by the generator unit 410, And a battery unit 420 for storing power.

The power generator unit 410 includes a rotation unit 411 that extends from the head unit 300 to the inside of the intermediate chamber 115 and is configured to rotate by flowing water such as an impeller, And a power generation unit 413 that generates power by the rotational force of the rotation unit 411. The power generation unit 413 has a general generator configuration.

The rotating part 411 rotates to generate power when the water flowing from the lower chamber 111 flows out to the upper chamber 113 through the intermediate chamber 115. [

Alternatively, the flow rate sensor 220 may be connected to the rotation unit 411 to measure the flow rate according to the rotation number of the rotation unit 411.

The power generator unit 410 is connected to a battery unit 420 that stores power generated from the power generator unit 410. The battery unit 420 includes a main battery 421 for storing the power generated from the generator unit 410 and a secondary battery 421 for temporarily storing the main battery 421 when the main battery 421 is discharged. 423).

Therefore, the power generated by the rotational force of the rotation unit 411 rotated by the flow of water is stored in the battery unit 420, so that the power required for driving the smart water meter of the present invention is supplied from the battery unit 420 Receive.

The head unit 300 is mounted with a central control unit 600 that stores data sensed by the sensor unit 200 and transmits the data to the outside and controls each component of the smart water meter of the present invention A control board 500 is provided.

The central control unit 600 processes the data sensed by the sensor unit 200 and stores the processed data in the memory unit 700 and transmits it to the external central management center 810 by the communication unit 800 using wired and wireless communication. Data is transmitted and received.

In addition, the central control unit 600 may implement a freeze prevention mode that may occur in the winter. The freezing prevention mode is for preventing the freezing of the water meter, which may occur when there is no flow of water at a temperature at which the water can freeze. The freezing prevention mode is a mode in which the rotation part 411 is rotated by using the power stored in the battery part 500 By continuously rotating and generating a circulating flow inside the water meter, it prevents frost.

Specifically, when the temperature measured by the temperature sensor 230 falls below the condensation point of the water, and there is no flow of water inside the body 110 The communication valve 120 located between the upper chamber 113 and the lower chamber 111 is opened.

Then, the rotation unit 411 is rotated using the power stored in the battery unit 420. At this time, the charge amount of the main battery 421 of the battery unit 420 is checked. The main battery 421 is used if the main battery 421 is charged sufficiently and the auxiliary battery 423 is used if the main battery 421 is not charged sufficiently.

4, the rotation of the rotation part 411 causes the water in the intermediate chamber 115 to move upward or downward, so that the water in the intermediate chamber 115 flows through the communication valve 120, The water can be circulated in the body 110 by moving to the upper chamber 113 or the lower chamber 111. [

Since water flows continuously through the inside of the body 110, it is possible to prevent the water meter from being frozen due to the ambient temperature. In addition, heat waves (not shown) that generate heat by the power of the battery unit 420 may be supplementarily provided to prevent freezing.

It is preferable that the flow rate measured by the flow rate sensor 220 is not measured because the flow rate is forcibly generated while the central control unit 600 implements the freeze prevention mode.

Data and driving status measured by the central control unit 600 can be displayed on the display unit 900 provided on the top surface of the head unit 300. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. will be.

Description of the Related Art [0002]
20: Municipal water supply treatment facility 30: City water supply reservoir
40: feeder 50: gateway
60: Data logger 70: Demand quantity forecasting and supply quantity calculating unit
110: body part 111: lower body
113: upper body 115: middle body
120: communication valve 200: sensor part
210: Water quality sensor 220: Flow sensor
300: head part 400: power part
410: Generator base 420: Battery unit
600: central control unit 700: memory unit
800: communication unit 900: display unit

Claims (15)

City water supply processing facility for treating city water with city water;
A city water supply / drainage reservoir temporarily storing and supplying the city water treated by the city water supply / treatment facility;
A supply pipe for supplying the city water from the city water supply / drainage compartment;
A plurality of smart water meters provided in the supply pond and measuring parameters related to the municipal water supplied to the supply pond;
A demand forecasting and supply amount calculating unit for controlling the city water supply processing facility and the city water supply / discharge facility by predicting a demand amount of city water according to a result measured by the smart water meter and determining a supply amount,
The smart water meter comprises:
And a body portion including a plurality of chambers,
The body
A lower chamber connected to the inlet pipe;
An upper chamber positioned above the lower chamber and communicating with the lower chamber;
An intermediate chamber positioned between the lower chamber and the upper chamber; And
And a communication valve is provided between the upper chamber and the lower chamber for selectively opening and closing the flow of water between the upper chamber and the lower chamber
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
The method according to claim 1,
A gate for receiving data measured by a smart water meter provided in each block of the supply source,
And a data logger for collecting data transmitted to the gateway
Forecasting and Supply Quantity of City Water Using Smart Water Meter. The method according to claim 1,
The demand forecasting and supply amount calculating unit
Data granulization, Kalman filter model, or neural network technique.
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
The method according to claim 1,
The demand forecasting and supply amount calculating unit
Based on the data collected at intervals of time in the smart water meter, the demand amount by hour and demand amount by day are predicted by the amount of city water used in blocks
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
The method according to claim 1,
The smart water meter
A sensor part provided on the body part and measuring a parameter related to water flow inside the body part;
And a head connected to the body and generating and storing power using the flow of water in the body and processing the data measured by the sensor,
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
delete delete 6. The method of claim 5,
The sensor unit
A water quality sensor, a flow sensor, or a temperature sensor
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
9. The method of claim 8,
Wherein the water quality sensor is provided in the lower chamber,
Wherein the flow sensor is provided in the intermediate chamber
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
9. The method of claim 8,
The head
A power unit for generating and storing power by using a flow of water inside the body,
And a central control unit for processing data measured by the sensor unit and controlling the power unit
Forecasting and Supply Quantity of City Water Using Smart Water Meter. 11. The method of claim 10,
The head
A memory unit for storing data measured by the sensor unit;
A communication unit for externally transmitting and receiving data measured by the sensor unit;
And a display unit for displaying result values processed by the central control unit
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
11. The method of claim 10,
The power unit
A power generator unit that generates power using a rotational force of a rotating part that is rotated by water flowing through the inside of the body part;
And a battery portion for storing the power generated by the power generator portion
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
13. The method of claim 12,
The battery unit
A main battery for storing the power generated by the generator section;
And an auxiliary battery for use in discharging the main battery
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
13. The method of claim 12,
The central control unit
When the external environment reaches the freezing condition, the communication valve is opened and the rotation part is rotated using the power stored in the power part
Forecasting and Supply Quantity of City Water Using Smart Water Meter.
15. The method of claim 14,
The central control unit
And not to estimate flow data sensed by the flow sensor during the east wave conditions
Forecasting and Supply Quantity of City Water Using Smart Water Meter.

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