KR101501575B1 - Method for Calculating Actual Measurement Under Registration Rate of Water Meter for Improving Credibility of Total Revenue Water Account Balance Analysis - Google Patents

Abstract

The present invention is based on the fact that, in order to reflect on the actual state of the water supply environment, the water discharge rate of the water meter is actually applied to the actual water meter, (A) selecting a sample area for the water supply of a corresponding small block partitioned by a plurality of small block units, and connecting the digital water meter to the mechanical water meter in the sample area, Transmitting the meter reading information input to the meter reading terminal to the meter reading volume collecting server through the wired / wireless communication network by the meter reading source for a predetermined period of time in the meter; (b) transmitting the measurement information for a predetermined period of time from the digital water meter to the measurement volume collection server through a wired / wireless communication network; (c) receiving the meter reading amount of the mechanical water meter and the meter reading amount of the digital water meter, respectively, and storing the meter reading amount in the meter reading amount DB; and (d) The server calculates the incidence rate of the corresponding small block by applying it to the built-in metering incidence incidence reduction algorithm, and the incidence reduction server estimates the total incidence rate by expanding the incidence rate by the size of the small block unit and application, And a step of calculating a final incapability rate of the small block. The present invention can more realistically approach the effective quantity (effective rate) by applying the incidence rate of the water meter calculated monthly by applying the meter incapability calculated from the sample area of the small block unit to which the tap water is supplied, It can be reflected in the actual situation of the water environment by measuring the statistical value and enlarging it, and it can be reflected as an item specialized in civil engineering design. It can be designed considering the sample area in the pipe network design in the civil engineering field, and the block flow meter is installed It is designed to be located near the site control panel and can be used for remote meter reading by radio (RF) communication, so that it is possible to calculate the effective quantity according to the accurate and realistic incidence rate calculation.

Description

Technical Field [0001] The present invention relates to a method for estimating an actual waterfall rate of a water meter for improving the reliability of a total water balance analysis,

The present invention relates to a method for estimating the fire rate of a water meter by actual measurement in order to improve the reliability of the overall water balance analysis. More particularly, The present invention relates to a method for estimating the actual incidence rate of a water meter, which allows the incidence rate of the water meter to be extended to actual conditions in the water environment.

The main point that is being pursued in all businesses such as the water supply maintenance business, the introduction of the block system, and the Smart Water Grid in Korea is to improve the reliability of the effective quantity, that is, the yield rate. However, the current oil yield does not reflect various environmental conditions and environmental factors, and therefore there is a structural problem that can not be estimated accurately. In particular, the amount of water used in the customer means simply the charge amount, and the overestimated and underestimated values can not but be used as it is due to the error of the water meter. Therefore, in order to estimate the amount of water that reflects the environment in which the water meter is installed, it is necessary to take into account the meter fire rate corresponding to the effective water content. In other words, it is an accurate method of analyzing the amount of water to be supplied by analyzing the effective yield by calculating the effective water amount including the dry water amount in the flow amount.

In addition, in the conventional total water balance evaluation method, the state of the actual water environment is concealed by using the meter failure rate included in the effective water amount as a statistical value. However, in order to improve or improve the overall water balance analysis method, There are a lot of difficulties. Meanwhile, in the block system, a water purification plant passes through a plurality of reservoirs before a water purification process is supplied to a home or office through a purification process, and a zone where one purification plant supplies a constant water through a plurality of reservoirs is called a large block, In the middle block, the water is supplied to the home or office through a drainage pipe connected to the drainage main pipe through a drainage main pipe connected to the drainage pipe. The watering area of each lot is called a small block.

The chart below shows the table below for the analysis of total volume balance in the Ministry of Environment.

Referring to Table 1, the total amount of water produced and supplied from a water purification plant or a reservoir is classified into an effective amount and an invalid amount. The effective quantity includes the quantity of water, the quantity of water, and other quantity of the measured value, and the quantity of water without quantity is the quantity of water meter deduction and public quantity based on the statistical value, the quantity for waterworks business depending on the statistical value and the measured value, Value and the unused amount that is not used. In addition, the invalid quantity includes the adjusted amount and leakage amount.

The Effective Water is a quantity recognized to be effective for use. That is, the sum of the water yield and the water free water. Ineffective water is a quantity that is deemed invalid for use. That is, the sum of the amount of adjustment and the amount of water leakage. (Revenue water) is calculated as 'Quantity to be charged' in the waterworks standard (Ministry of Environment, 1997) and 'Guideline for Water Statistics' (Ministry of Environment, 2004) Quot ;, i.e., the sum of the charge quantity, the minute quantity, and the other quantity. The Revenue Water Ratio is the ratio of water yield to water supply. It is expressed as a percentage by dividing the water yield by the water amount in the waterworks facility standard. In the waterworks glossary of the Seoul Waterworks Division, The ratio of the quantity received as the fee income to the total quantity of the imported goods. In other words, if the area subject to the flow rate estimation is a drainage area, the ratio of the quantity of water to the amount of drainage is defined as the flow rate because the drainage amount is the supply quantity. If the subject area is the administrative area of the local government, Time ratio) is defined as the flow rate. The formula for calculating the oil yield is (oil yield / oil yield) * 100. The Effective Water Ratio is the ratio of the effective water to the supplied water.

Non-Revenue Water is a non-importable quantity. Because of the difference between the system inflow and the legal usage amount, the waterworks standard and the city waterworks glossary are defined as the quantity that is not subject to the toll collection, that is, the water quantity for the waterworks business, the water quantity of the water meter, , And in the Guideline for Waterworks Statistics, it is defined as 'quantity without income from effective quantity', but it is equivalent to 'effective quantity without quantity'. Therefore, the quantity of free water is defined as the sum of the quantity without effective income and the quantity without free water. The inflow amount is the amount (m 3) of tap water flowing into a unit block in one day. Non-Revenue Water Ratio is the ratio of anhydrous water to supplied water. The ratio of waterless water and drainage when the target area is a drainage area, and the ratio of anhydrous quantity and production amount when the target area is an administrative area by the local government. Since the concept is the opposite of the flow rate, the formula for calculating the non-yield (%) is (anhydrous / productive) * 100. Or no yield (%) is the value obtained by subtracting the yield percentage (%) from the yield of 100%. Ineffective water ratio is the ratio of the invalid quantity to the supply quantity.

In addition, the performance of the water meter of 13mm ~ 50mm diameter corresponding to approximately 98.6% of the total composition ratio of the water pipe is as shown in the following table. The performance of the water meter is represented by the water meter performance specified in the KS standard. Therefore, it is possible to approach the reduction technique of the dead weight through the performance review of the meter.

In Table 2, the starting flow rate is the flow rate at the time when the instructions on the meter scale plate start to move when water is sent for 3 minutes.

The water meter usually has a range that can be accurately measured by the aperture. It may become difficult to accurately measure the quantity of water to be used depending on the quantity of water to be used. The amount of water contained in such a non-measurable range is referred to as a meter dead volume, i.e., a non-sensible amount. Therefore, in order to accurately measure the quantity used, it is necessary to minimize the quantity of dead water by selecting the proper diameter and the meter suitable for the application.

In addition, most municipalities apply statistical numerical values of 3% fire rate permanently and reflect them in the flow rate.

Traditionally, meter reading of water usage is performed by meter inspecting personnel visiting each customer, meter reading, recording and collecting meter installed in customer. In the block system, a plurality of block units are used to perform the meter reading, and accordingly, the corresponding meter reading unit performs the meter reading at different times. However, there is a problem in that, when there is an error in each meter, the weight loss of the meter in the effective anhydrous water is set to a normal statistical value, it is difficult to calculate a more realistic and accurate effective water quantity. In addition, the water meter installed in the customer is collected to estimate the fire rate in the laboratory.

In addition, although the above-mentioned problem is solved by conducting the meter reading of the entire area at the same time by the introduction of the automatic meter reading system in the related art, it takes a lot of cost to introduce and apply the automatic meter reading system, The spread is delayed.

On the other hand, as a prior art document, Korean Utility Model Publication No. 10-2010-0090372 discloses a water flow meter for improving the accuracy and accuracy of flow measurement by improving the fire rate of a large-scale meter, A flow meter for measuring the flow rate by using the rotational force of the rotating impeller; An extension pipe connected to an inlet of the flowmeter, the inner pipe and the outer pipe being extendably connected to each other in a stretchable manner; And a straightener detachably provided at the front end of the expansion and contraction tube and rectifying the introduced turbulence to a measurable steady flow. This is a device for minimizing the incidence rate of installed meters for each water supply pipe, and thus there is a troublesome problem that the meter checker must perform meter reading for every meter as the installation cost is increased.

In order to solve the above problems, the present invention provides a method for analyzing the overall water balance, which is used for analyzing the effective rate, in order to analyze the meter failure rate among the influential factors corresponding to the effective waterless quantity, The purpose of this study is to improve the reliability of the total volume balance analysis by making it possible to analyze more precisely the validity by using the effective quantity including the effective waterless quantity.

In addition, the present invention is based on the assumption that a representative group of the local governments is selected according to the diameter of the pipe and the use of the mechanical water meter, and the mechanical water meter and the digital water meter are installed in a serial manner to measure the non- Purpose.

(여기에서, M은 용도별(가정용, 업무용, 영업용, 욕탕용 등)이고, i는 관경별(계량기 관경(mm) 수)이며, n은 용도별 및 관경별 디지털 수도계량기에 직렬로 연결된 기계식 수도계량기의 총 개수이다.)에 적용하여 해당 소블록 표본지역의 관경별, 용도별 실측 불감률(a_Mi)을 산정하고, 상기 불감률산정서버는 해당 소블록 단위의 관경별, 용도별로 확대 적용하기 위해, 상기 산정된 해당 소블록 표본지역의 관경별, 용도별 실측 불감률에 해당 소블록 단위로 용도에 따른 관경별 기계식 수도계량기 개수를 용도에 따른 전체 기계식 수도계량기 개수를 나눈 값인 비율계수(k factor)를 적용하고, 즉,

(여기에서, k_Mi는 용도별(M) i관경의 기계식 수도계량기 개수를 용도별(M) 전체 기계식 수도계량기 개수로 나눈 값이 된다.), 용도별 모든 관경에 대한 비율을 모두 합산하여 해당 소블록 단위의 용도별 불감률(c_M), 즉,

(여기에서, ∑b_Mi 는 용도별 모든 관경(i)에 대한 비율을 합산한 것이다.)을 산정한 후, 해당 소블록 단위로 용도에 따른 기계식 수도계량기 개수에 해당 소블록 전체의 기계식 수도계량기 개수를 나눈 값에 상기 해당 소블록 단위의 용도별 불감률을 곱하여 적산함으로써 해당 소블록의 최종 불감률(d_block), 즉,

(여기에서, C_Mn은 용도별 불감률이다. 즉 가정용(C_M1), 업무용(C_M2), 영업용(C_M3), 욕탕용(C_M4)으로 4개로 분류할 수 있다.)을 산정하는 단계를 포함하여 이루어진 총괄수량수지 분석의 신뢰도 향상을 위한 수도계량기 실측 불감률 산정 방법을 제공한 것이 특징이다.In order to achieve the above-mentioned object, the present invention provides a water supply system, comprising: (a) a water supply acceptance sampling area of a corresponding small block partitioned by a plurality of small block units for each pipe diameter and usage (here, the pipe diameter is 15 mm to 400 mm, And the water meter is connected to the mechanical water meter of the sample area through the water pipe more precisely to measure the flow rate in a serial manner, Transmitting the meter reading information input to the meter reading terminal to the meter reading amount collecting server through the wired / wireless communication network; (b) transmitting the measurement information for a predetermined period measured by the digital water meter to the measurement volume collection server through a wired / wireless communication network; (c) receiving the meter reading amount of the mechanical water meter and the meter reading amount of the digital water meter, respectively, and storing the measurement amount in the meter reading amount DB, and (d) The metering meter and the digital water meter are used to calculate the incineration rate. The server calculates the incineration rate using the mathematical expressions included in the built-

(Where m is the number of meters per meter), and n is a mechanical water meter connected in series to the digital water meter by usage and diameter To calculate the actual incidence incidence rate (a _Mi ) of each small block sample area according to the diameter and usage, and the incidence reduction server calculates the incidence incidence rate (a _Mi ) (K factor), which is a value obtained by dividing the total number of mechanical water meters according to the usage by the number of mechanical water meters according to the usage in the corresponding small block units, according to the measured incidence rates of the corresponding small block sample areas, , That is,

(Here, k _Mi is the total number of mechanical water meters for each application (M) i divided by the number of total mechanical water meters for each application (M)). (C _M ), i.e.,

(Here, Σb _Mi is the sum of the ratios for all diameters (i) by application), and then the number of mechanical water meters corresponding to the application in the corresponding small block units by integrating the value obtained by dividing the multiplied the small light lapse rate by use of the block unit in the last fire lapse rate _(block d) of the small blocks, i.e.,

(Here, C _Mn is the fire reduction rate according to the application.) It is a step to calculate the fire rate per use (C _M1 ), business (C _M2 ), business (C _M3 ), bath (C _M4 ) And a method for estimating the actual failure rate of the water meter to improve the reliability of the overall water balance analysis.

In addition, in the present invention, (e) flow rate information from the total flow meter and the block flow meter collected and stored by the meter reading amount collection server and the final light incidence rate calculated by the incidence reduction accounting server are collectively analyzed by the total water balance analysis server And analyzing the total quantity balance and then analyzing the effective quantity (the quantity of water to be flowed + the quantity without water).

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According to the present invention, it is possible to more realistically approach the effective quantity (effective rate) by applying the incineration rate of the water meter calculated monthly by applying the meter incineration rate calculated from the sample area of the small block unit to which tap water is supplied, It can be reflected in the actual situation of the water supply environment by measuring and applying the theoretical statistical data, and it can be reflected as an item specialized in civil engineering design. It can be designed considering the sample area in the pipe network design in civil engineering field, Is designed to be located near the site control panel installed, and it is possible to meter it remotely by radio (RF) communication, which is advantageous in that it can calculate the effective quantity according to the accurate and realistic incidence rate calculation.

FIG. 1 is a diagram illustrating the construction of a system for estimating the actual failure rate of a water meter for improving the reliability of the overall volume balance analysis according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a block system for supplying tap water in a block system according to the present invention, which is divided into a plurality of small-block units, and measuring the incidence rate of the water meter sampled for each pipe size and usage in units of small blocks.
FIG. 3 schematically shows the combination of a sample area for each pipe diameter and a use area for each small block according to the present invention.
FIG. 4 is a flowchart illustrating a method for estimating the actual incidence rate of the water meter for improving the reliability of the overall water balance analysis according to the present invention.
FIG. 5 is a flowchart illustrating a method of estimating the incidence rate by applying the incidence reduction algorithm according to the present invention.

Hereinafter, an actual incidence reduction rate calculation method of the water meter for improving the reliability of the total volume balance analysis will be described in detail with reference to the accompanying drawings.

In FIG. 1, the meter reading terminal 10 includes a PDA, a smart phone, a tablet PC, and the like, which can be input and stored by a meter reading source by meter reading a mechanical water meter installed in a water supply cigarette and improved in portability and mobility. The meter probe terminal 10 has a built-in program for inputting and outputting various information related to the meter reading of the water meter such as the identification number of the customer, the meter reading date, the meter reading amount, and the meter reader. It is preferable that the probe terminal 10 be able to connect with a wired / wireless connection so that the probe information can be transmitted / received to / from an external terminal. Furthermore, the meter reading terminal 10 may be configured to transmit the meter reading information to the remote meter reading volume collection server 30 connected to the wired / wireless communication network 20 in real time upon input of the meter reading information.

The digital water meter 14 is connected in series with the mechanical water meter 12 extracted as a sample, and measures the flow rate of the water supplied through the water pipe 120 more precisely. The digital water meter 14 has a function of transmitting the meter reading information to the meter volume collecting server 30 through the wired / wireless communication network 20 itself or the meter water meter 14 may include meter reading information via the wired / It is a function that can be transmitted. Accordingly, the digital water meter 14 is a meter capable of supplementing or replacing the uncertain meter reading of the mechanical water meter 12. However, due to the real problem that the digital water meter 14 can not be installed in the whole customer, that is, the cost, it is connected in series to the extracted mechanical water meter 12 only in the sample area. Furthermore, since the mechanical water meter (12) is old and old, the meter reading accuracy is low.

The meter reading amount collection server 30 collects the meter reading amount from the mechanical water meter 12 and the digital water meter 14 installed in the water pipe 120 that is piped to a plurality of cafeteria selected from a plurality of small blocks, do. The meter reading amount collection server 30 automatically collects the meter reading data from the corresponding mechanical water meter 12 and the digital water meter 14 remotely. Therefore, the meter reading and collecting server 30 receives the meter reading data input by the meter reading unit from the meter reading terminal 10, and the digital water meter 14 receives the meter reading data through itself or the field control panel . The meter reading data of the mechanical water meter 12 and the digital water meter 14 collected by the meter reading amount collection server 30 are stored in the measurement amount DB 32, respectively.

The incapacity rate calculation server 40 estimates the incidence rate using the built-in incidence reduction rate algorithm from the information on the amount of collected information from the information collection server 30. In addition, the incidence rate of the water pipe installed in the small block is expanded and applied to each pipe, and the incidence rate of the entire small block is calculated in a general manner.

Also, the generic quantity resin analysis server 50 calculates and analyzes the effective quantity (effective rate) by analyzing the generic quantity resin by an algorithm for analyzing the built-in generic quantity resin from the incidence rate calculated by the incapacitance rate calculation server 40 will be.

In FIG. 2, the water is supplied to the entire block through the water pipe 120 from a water purification plant / drainage pipe for supplying tap water, and the entire block is divided into smaller block units and supplied to the corresponding water pipe 120 through the water pipe 120. The supply amount supplied from the water treatment plant / reservoir through the water supply pipe 120 is measured by the total flow meter 100 and then divided into small blocks and supplied to the corresponding customer through the water pipe 120 is supplied to the block flow meter 110 , 111 are weighed. The supply amount data measured in the total flow meter 100 and the block flow meters 110 and 111 are transmitted to the measurement amount collection server 30 through the wired / wireless communication network 20 through the field control panel.

In addition, in the present invention, the sample areas selected in units of small blocks are categorized as applications, that is, for home use, business use, business use, and bathing. That is, a household sampling area is selected in a small block to which tap water is supplied through the block flow meter 110, and a business sampling area is selected in a small block to which tap water is supplied through the block flow meter 111. However, For each small block, a sample area (for home use, business use, business use, and bathing) is selected for each use. A digital water meter 14 is connected in series to the mechanical water meter 12 of the corresponding sample area.

In Fig. 3, a sample is selected for each pipe diameter according to use. That is, a sample of the water pipe of 15 mm to 400 mm is selected for each pipe. Therefore, the digital water meter 14 is connected in series to the mechanical water meter 12 of the sampling area installed in the water pipe which is currently piped to the customer, and the quantity of water is measured from the mechanical water meter 12 and the digital water meter 14. In addition, after the group is determined by the diameter of the water pipe and the usage of the water meter, the water quantity is measured from the mechanical water meter 12 and the digital water meter 14, respectively.

The method of calculating the water meter non-discharge rate through actual measurement for the overall water balance analysis according to the present invention will be described with reference to the flowcharts of FIGS.

First, in FIG. 4, a water supply acceptance sampling area of a corresponding small block partitioned by a plurality of small block units is selected (S100). The digital water meter 14 is connected in series to the mechanical water meter 12 of the selected sample area (S110). The information read by the mechanical water meter 12 for a predetermined period of time, for example, a predetermined time unit, day, or month is inputted to the checker terminal 10 by the checker 10 (S120) The input metering amount information is transmitted to the metering amount collecting server 30 through the wired / wireless communication network 20 (S130). Further, the meter reading information read from the mechanical water meter 12 may be transmitted to the meter reading volume collecting server 30 through the wired / wireless communication network 20 via the field control panel.

In addition, the digital water meter 14 transmits the meter reading information for a predetermined period to the measurement volume collection server 30 through the wired / wireless communication network 20 (S140). The digital water meter 14 itself transmits the meter reading information through the wired / wireless communication network 20 or the wired / wireless communication network 20 via the field control panel. At this time, the meter reading information of the mechanical water meter 12 and the meter reading information of the digital water meter 14 will be different. That is, the mechanical water meter 12 may be out of date or will be different from the meter reading information of the digital water meter 14 due to limit of meter reading of the mechanical water meter 12.

The meter reading amount collection server 30 receives the meter reading amount of the mechanical water meter 12 and the meter reading amount of the digital water meter 14 and stores them in the measurement amount DB 32 at step S150. The meter reading and collecting server 30 collects the flow rate information from the total flow meter 100 for measuring the flow rate of the water sent from the water purification plant / drainage and the block flow meters 110 and 111 for measuring the flow rate of the small flow rate And stores it. This is to collect the supply amount of tap water so that the effective water amount can be calculated.

The incapacity rate calculation server 40 calculates the incidence rate information stored in the measurement quantity DB 32 from the measurement quantity collecting server 30 using the built-in meter incidence rate reduction algorithm (S160) .

In FIG. 5, the actual incidence ratio a _Mi of each small-diameter block sample area can be calculated (S161), and the calculation formula thereof is as follows.

Where i is the diameter of the meter (meter diameter (mm)) and n is the diameter of the mechanical water meter connected in series with the digital water meter by usage and diameter. Total number.

It is assumed that the meter water quantity data is a digital water meter 14 connected in series to the mechanical water meter 12 by at least one channel in each unit small block, The meter reading amount of the digital water meter 14 is divided. Also, in the case where a plurality of units are installed and measured for each pipe diameter and application, it is possible to select a pipe having a high degree of reliability or to calculate the average value. The above formula (1) is averaged.

Then, the ratio factor (k factor) can be applied to the observed incidence rate (a _Mi ) of each pipe diameter and use (S162), and the calculation formula thereof is as follows.

Here, k _Mi is the value of the mechanical water meter of the diameter (i) of the application (M) divided by the usage (M) of the total mechanical water meter. In this case, the number will be calculated for each application and for each circumference in small block units.

If the incidence rate of each small-diameter block and the small-size block is calculated, the incidence rate is calculated for each diameter of the small block and the application to calculate the incidence rate (S170). Therefore, the incapacity rate calculation server 40 continuously applies the total incidence rate by applying the enlargement ratio for each diameter and size of the small block unit (S180).

In other words, when the actual incidence percentage (a _Mi ) for each of the diameters and uses is expanded, the application specific incidence rate (c _M ) of the corresponding small blocks in which the ratios for all diameters for each application are summed is calculated (S181) As follows.

Here, Σb _Mi is the sum of the ratios for all diameters (i) by application.

From this, the final fire rate of the corresponding small block unit is calculated. Accordingly, the final block rate (d _block ) of the corresponding small block can be calculated (S182), and the calculation formula thereof is as follows.

Here, C _Mn is the incidence rate according to the use calculated in the above-mentioned formula (3). In other words, the final fire rate of the corresponding small block can be obtained by classifying it as 4 for household (C _M1 ), commercial (C _M2 ), commercial (C _M3 ), and bath (C _M4 ).

As a result, the effective water amount can be calculated from the final incapacity calculated in the equation (4). Accordingly, the total quantity balance calculated by the incapacity reduction calculation server 40 is analyzed by the total quantity balance analysis server 50 (S200) using the built-in algorithm (see Table 1) for the overall quantity balance analysis. Then, the effective quantity is analyzed from the analysis of the generic quantity balance (S210).

When the sample area is selected in such a small block unit, a digital water meter is connected in series to the mechanical water meter, and the meter reading amount of the mechanical water meter and the digital water meter are respectively collected by the meter collecting server. The insufficiency rate is calculated by comparing the two data from the meter reading information collected by the meter reading collection server. Then, the estimated amount of incineration is applied to each block to calculate the effective quantity in the total quantity balance analysis server. Therefore, it is possible to reflect the actual situation of the water environment from the fact that the analysis of the generic water balance is expanded by applying the theoretical statistical data.

While the invention has been shown and described with respect to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.

10: meter reading terminal 12: mechanical water meter 14: digital water meter 20: wired / wireless communication network 30: meter reading collection server 32: meter reading DB 40: incapacity calculating server 50: Block flow meter 120:

Claims (8)

(a) Selecting the sample area of the water tank of the corresponding small block which is divided into a plurality of small block units by the diameter of the pipe and the usage (here, the diameter of the pipe is 15 mm to 400 mm, and for each use, it is for domestic use, business use, business use and bathing) And the meter water meter is connected to the mechanical water meter of the sampling area through the water pipe more precisely to measure the flow rate of the water meter from the serial connection of the meter water meter for a certain period of time, And transmitting the information on the amount of the inputted metering information to the metering amount collecting server through the wired / wireless communication network;
(b) transmitting the measurement information for a predetermined period measured by the digital water meter to the measurement volume collection server through a wired / wireless communication network;
(c) receiving the meter reading amount of the mechanical water meter and the meter reading amount of the digital water meter, respectively, and storing the meter reading amount in the meter reading amount DB; and
(d) calculating the incidence rate of the mechanical metering meter and the metering meter information of the digital metering meter stored in the metering DB,

(Where m is the number of meters per meter), and n is a mechanical water meter connected in series to the digital water meter by usage and diameter (A _Mi ) of the small block sample area by the diameter of the small block and the usage,
The incapacity reduction calculation server may calculate the incidence reduction rate by the diameter of the small block and the usage of the corresponding small block sample area in the small block unit in accordance with the usage, (K factor) which is a value obtained by dividing the number of meters divided by the total number of mechanical water meters according to usage,

(Here, k _Mi is the total number of mechanical water meters for each application (M) i divided by the number of total mechanical water meters for each application (M)). (C _M ), i.e.,

(Here, Σb _Mi is the sum of the ratios for all diameters (i) by application), and then the number of mechanical water meters corresponding to the application in the corresponding small block units by integrating the value obtained by dividing the multiplied the small light lapse rate by use of the block unit in the last fire lapse rate _(block d) of the small blocks, i.e.,

(Here, C _Mn is the fire reduction rate according to the application.) It is a step to calculate the fire rate per use (C _M1 ), business (C _M2 ), business (C _M3 ), bath (C _M4 ) A method for estimating the actual failure rate of a water meter to improve the reliability of the total volume balance analysis.
The method according to claim 1,
(e) Flow rate information from the total flow meter and block flow meter collected and stored by the meter reading collection server and the final memory loss rate calculated by the above incidence calculation server are applied to the algorithm for the total water balance analysis in the general quantity balance analysis server And analyzing the total quantity balance and then analyzing the effective quantity (the quantity of water to be drained + the quantity of free water).
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