A water loss calculation method and device based on DMA partition production and sales difference rate of standard month

Abstract

The embodiments of the present disclosure provide a method and device for calculating water loss based on the production-sales difference rate of a DMA partition in a standard month. Applied to the field of tap water supply detection technology, it includes constructing an information-based data collection model for the basic data of the pipe network in the DMA partition to collect basic water supply information; counting the water sales volume and the error amount in the partition according to the basic water supply information, and calculating the monthly standard monthly water supply and the standard monthly compensation water volume in the partition, and combining the basic water supply information to calculate the standard monthly production-sales difference rate in the DMA partition, and judging the water loss based on the standard monthly production-sales difference rate, and repairing the pipeline. In this way, the present invention removes most of the interference caused by different time periods, and the data results more accurately and effectively reflect the operating status of the water supply enterprise in the current time period, providing managers with real-time and accurate data support, and maintaining the water supply pipeline according to the production-sales difference rate, which helps to adjust the strategy in a timely manner.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tap water supply detection, and in particular to a water loss calculation method and device based on a DMA zone production and sales difference rate based on a standard month. Background Art

[0002] As an important indicator to measure the operational efficiency and resource utilization level of water supply enterprises, the accuracy and scientificity of its calculation method are of vital importance. The level of the production-sales gap rate not only affects the economic benefits of water supply enterprises, but is also directly related to the conservation and utilization of water resources.

[0003] The traditional method of calculating the difference between water supply and water sales in a certain period (usually in months) is to use the difference between water supply and water sales as the difference between water supply and sales. This difference reflects the losses of enterprises in the process of water transmission and distribution, including physical leakage, measurement errors, unbilled water and other factors.

[0004] Since there are a large number of non-remote meters in the water company that require manual on-site meter reading, the number of days in the meter reading cycle between different charging meters varies. The number of days in this cycle is often not a fixed standard month, which causes deviations in the calculation of the total amount of monthly water sales. At the same time, the difference in the number of days in different months will also affect the calculation of the total amount of monthly water supply, and thus affect the accuracy of the monthly production and sales difference rate.

[0005] Therefore, providing a method that can accurately calculate and analyze the production and sales gap is of great significance to improving the operational management level of water supply companies. Summary of the invention

[0006] The present invention provides a method and device for calculating water loss based on the DMA partition production and sales difference rate of a standard month. By adopting the standard month production and sales difference rate calculation method, most of the interference caused by different time periods is removed, and the technical problem of calculation deviation caused by different months in the production and sales difference rate calculation process of the prior art is solved.

[0007] According to a first aspect of the present disclosure, a method for calculating water loss based on the DMA zone production and sales difference rate of a standard month is provided, comprising the following steps:

[0008] Establish several DMA zones based on the actual water supply situation in the city, and construct an information data collection model for the basic data of the pipe network in the DMA zones to collect the basic water supply information of the DMA zones;

[0009] According to the actual water supply situation of the DMA zoned pipe network and the basic water supply information, the water sales volume in the zone and the error caused by the metering error of the water supply equipment are counted, and the monthly standard water supply volume and the standard monthly compensation water volume in the zone are calculated;

[0010] The standard monthly production-sales difference rate in the DMA partition is calculated by combining the basic water supply information, the standard monthly water supply volume and the standard monthly compensation water volume, and the water loss is judged based on the standard monthly production-sales difference rate, and the pipelines in the DMA partition are repaired according to the judgment result;

[0011] The calculation method of the standard monthly production-sales difference rate is: Among them, X is the standard monthly production-sales difference rate, C is the standard monthly production-sales difference, G is the standard monthly water supply, B is the standard monthly water supply, g The standard monthly water supply compensation amount;

[0012] For the standard monthly production-sales difference C, the specifics are: Among them, S is the standard monthly water sales volume, B s It is the standard monthly water sales compensation amount.

[0013] According to the above aspects and any possible implementation, an implementation is further provided, wherein the process of establishing a plurality of DMA partitions based on the actual urban water supply situation and constructing an information data collection model for the basic data of the pipe network in the DMA partitions is as follows:

[0014] Select zones based on the urban terrain and the existing pipe network layout, and cut the urban water supply and distribution system into several independent areas by closing valves or installing flow meters to form several DMA zones at various levels;

[0015] Install a flow meter and a remote transmission device at the entrance section of the DMA partition to monitor the water supply information within the DMA partition;

[0016] Construct a data collection model for the basic data informatization of the pipeline network, collect the water supply flow monitoring results, and obtain basic water supply information.

[0017] As described above and any possible implementation method, an implementation method is further provided, wherein the basic water supply information includes the average daily water supply in the area, the monthly water supply period and fee table information, the normal water loss value, and the necessary water consumption value.

[0018] According to the above aspects and any possible implementation, an implementation is further provided, wherein the process of calculating the water sales volume in the partition and the error caused by the metering error of the water supply equipment according to the actual water supply situation of the DMA partition pipe network and the basic water supply information, and calculating the standard monthly water supply volume and the standard monthly compensation water volume in the partition is:

[0019] Combined with the basic water supply information, a remote transmission fee table and a non-remote transmission fee table are obtained according to the household number matching in the DMA partition;

[0020] According to the household number or meter number, the remote meter and non-remote meter under the centralized reading system are matched, and the standard monthly water sales volume of the remote meter and non-remote meter are calculated respectively;

[0021] In combination with the basic water supply information, the compensation water volume is obtained, and the standard monthly compensation water volume is calculated based on the compensation water volume.

[0022] According to the above aspects and any possible implementation, a further implementation is provided, wherein the calculation process of the standard monthly water sales volume is:

[0023] According to the household number or meter number, the remote meter under the centralized reading system is matched, and the total monthly water sales of each remote meter is calculated, and the average daily water sales are calculated. Based on the number of days in the standard month, the standard monthly water sales of the remote meter are calculated according to the average daily water sales;

[0024] According to the household number or meter number, the non-remote meter under the centralized reading system is matched, and the total monthly water sales of each non-remote meter is calculated, and the average daily water sales are calculated; based on the number of days in the standard month, the standard monthly water sales of the non-remote meter are calculated according to the average daily water sales;

[0025] The sum of the standard monthly water sales volume of the remote charging meter and the standard monthly water sales volume of the non-remote charging meter is calculated to obtain the standard monthly water sales volume.

[0026] According to the above aspects and any possible implementation, an implementation is further provided, wherein the calculation process of the standard monthly compensation water volume is:

[0027] In the DMA zone, according to the monthly water supply and monthly water sales for greening, sewage, fire fighting and related metering, the monthly water supply compensation and monthly water sales compensation are obtained, and the average daily water supply compensation and average daily water sales compensation are calculated;

[0028] Based on the number of days in the standard month, the standard monthly water sales compensation amount and the standard monthly water supply compensation amount are calculated according to the average daily water supply compensation amount and the average daily water sales compensation amount.

[0029] According to the above aspects and any possible implementation, an implementation is further provided, wherein the process of judging water loss based on the standard monthly production-sales difference rate is as follows:

[0030] Obtain the measured value of monthly water supply and the measured value of monthly water sales in the DMA partition in real time, and calculate the water volume calculation value of the production and sales difference rate;

[0031] It is determined whether the water volume calculation value of the production-sales difference rate is greater than the standard monthly production-sales difference rate. If so, an abnormal water loss early warning model is generated, and the natural leakage water volume is calculated according to the abnormal water loss early warning model.

[0032] According to the above aspects and any possible implementation, an implementation is further provided, wherein the calculation process of the natural water loss is:

[0033] According to the water supply basic information, the normal water loss value and the necessary water consumption value in the DMA partition are obtained;

[0034] The normal water loss value and the necessary water consumption value are added together to obtain the natural water loss.

[0035] According to a second aspect of the present disclosure, a water loss calculation device based on the production-sales difference rate of a DMA partition in a standard month is provided, which is used to implement the water loss calculation method based on the production-sales difference rate of a DMA partition in a standard month as described in the first aspect, comprising: a DMA management and analysis module, a DMA partition water volume calculation module, and a production-sales difference rate and water loss judgment module;

[0036] The DMA management and analysis module establishes several DMA partitions based on the actual water supply situation in the city, and constructs an information data collection model for the basic data of the pipe network in the DMA partitions to collect the basic water supply information of the DMA partitions;

[0037] The DMA partition water volume calculation module counts the water sales volume in the partition and the error caused by the metering error of the water supply equipment according to the actual water supply situation of the DMA partition pipe network and the basic water supply information, and calculates the monthly standard water supply volume and the standard monthly compensation water volume in the partition;

[0038] The production-sales difference rate and water loss judgment module calculates the standard monthly production-sales difference rate within the DMA partition based on the basic water supply information, the standard monthly water supply volume and the standard monthly compensation water volume, and judges the water loss based on the standard monthly production-sales difference rate, and repairs the DMA partition pipeline according to the judgment result.

[0039] Compared with the prior art, the present invention has the following technical effects:

[0040] The water loss calculation method and device for the monthly production-sales difference rate of zoned standards provided by the present invention eliminate most of the interference caused by different time periods. The data results are more accurate and effective, and can more timely and accurately reflect the operating conditions of the water supply enterprise in the current time period, providing managers with real-time and accurate data support, which helps to adjust strategies in time and maintain water supply pipelines according to the calculated production-sales difference rate.

[0041] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, among which:

[0043] Figure 1 A schematic flow chart of a method for calculating water loss based on the DMA partition production-sales difference rate of a standard month according to an embodiment of the present disclosure is shown;

[0044] Figure 2 A schematic structural diagram of a water loss calculation device based on the DMA partition production and sales difference rate of a standard month according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Reference Figure 1 As shown, this embodiment provides a water loss calculation method based on the DMA partition production and sales difference rate of a standard month, including the following steps:

[0048] S101. Establish several DMA zones based on the actual water supply situation in the city, and construct an information-based data collection model for the basic data of the pipe network in the DMA zones to collect the basic water supply information of the DMA zones.

[0049] DMA zoning management refers to the selection of independent water supply areas for regional metering management to reduce leakage of water supply facilities in the community and implement long-term continuous monitoring. The key principle is to use nighttime minimum flow analysis to determine the leakage level in a defined area. By monitoring the flow in DMA, new leakage points can be identified, thereby maintaining leakage at an optimal level.

[0050] In this embodiment, a reasonable detection of the urban water supply is achieved by dividing the city into several DMA partitions. After the DMA partitions are divided, the water volume information in the partitions is obtained.

[0051] Select zones based on the terrain of the urban area and the existing pipe network layout, and cut the urban water supply and distribution system into several independent areas by closing valves or installing flow meters, forming several DMA zones at various levels. Flow meters and remote transmission devices are installed at the entrance of the DMA zones, and the water supply information within the DMA zones is monitored. A data acquisition model for the basic data informatization of the pipe network is constructed, and the water supply flow monitoring results are collected to obtain basic water supply information.

[0052] In this embodiment, preferably, the basic water supply information includes the average daily water supply volume in the area, the monthly water supply period and fee table information, the normal water loss value, and the necessary water consumption value.

[0053] S102. According to the actual water supply situation of the DMA zoned pipe network and the basic water supply information, the water sales volume in the zone and the error caused by the metering error of the water supply equipment are counted, and the monthly standard water supply volume and the standard monthly compensation water volume in the zone are calculated.

[0054] Specifically, in combination with the basic water supply information, the remote transmission meter and the non-remote transmission meter are distinguished according to the household number matching in the DMA partition; the remote transmission meter and the non-remote transmission meter are matched with the meter reading system according to the household number or meter number, and the standard monthly water sales volume of the remote transmission meter and the non-remote transmission meter are calculated respectively; in combination with the basic water supply information, the compensation water volume is obtained, and the standard monthly compensation water volume is calculated based on the compensation water volume.

[0055] In this embodiment, preferably, the calculation process of the standard monthly water sales volume is:

[0056] According to the household number or meter number, the remote meter under the centralized reading system is matched to calculate the total monthly water sales of each remote meter, and the average daily water sales are calculated. Based on the number of days in the standard month, the standard monthly water sales of the remote meter are calculated according to the average daily water sales; according to the household number or meter number, the non-remote meter under the centralized reading system is matched to calculate the total monthly water sales of each non-remote meter, and the average daily water sales are calculated; based on the number of days in the standard month, the standard monthly water sales of the non-remote meter are calculated according to the average daily water sales; the sum of the standard monthly water sales of the remote meter and the standard monthly water sales of the non-remote meter is calculated to obtain the standard monthly water sales.

[0057] At the same time, in this embodiment, preferably, the calculation process of the standard monthly compensation water volume is: in the DMA partition, based on the monthly water supply and monthly water sales volume for greening, sewage, fire fighting and related metering, the monthly water supply compensation volume and the monthly water sales compensation volume are obtained, and the average daily water supply compensation volume and the average daily water sales compensation volume are calculated; based on the number of days in the standard month, the standard monthly water sales compensation volume and the standard monthly water supply compensation volume are calculated based on the average daily water supply compensation volume and the average daily water sales compensation volume.

[0058] S103. Calculate the standard monthly production-sales difference rate within the DMA partition by combining the basic water supply information, the standard monthly water supply volume and the standard monthly compensation water volume, and judge the water loss based on the standard monthly production-sales difference rate, and repair the DMA partition pipeline according to the judgment result.

[0059] In this embodiment, the calculation method of the standard monthly production-sales difference rate is: (1)

[0060] Among them, X is the standard monthly production-sales difference rate, C is the standard monthly production-sales difference, G is the standard monthly water supply, and Bg is the standard monthly water supply compensation;

[0061] For the standard monthly production-sales difference C, the specifics are: (2)

[0062] Among them, S is the standard monthly water sales volume, and Bs is the standard monthly water sales compensation volume.

[0063] Preferably, the process of judging water loss based on the standard monthly production-sales difference rate is:

[0064] Obtain the measured value of monthly water supply and monthly water sales in the DMA zone in real time, and calculate the water volume calculation value of the production and sales difference rate;

[0065] Determine whether the water volume calculation value of the production-sales difference rate is greater than the standard monthly production-sales difference rate. If so, generate an abnormal water loss warning model and calculate the natural leakage water volume based on the abnormal water loss warning model.

[0066] At the same time, in this implementation, the calculation process of natural water loss is:

[0067] According to the basic water supply information, the normal water loss value and the necessary water consumption value in the DMA zone are obtained; the sum of the normal water loss value and the necessary water consumption value is calculated to obtain the natural leakage water volume.

[0068] like Figure 2 As shown, this embodiment also provides a DMA partition production and sales difference rate and water loss calculation device based on a standard month, which is used to implement the DMA partition production and sales difference rate and water loss calculation method based on a standard month described in the above embodiment, and the device includes: a DMA management and analysis module 1, a DMA partition water volume calculation module 2, and a production and sales difference rate and water loss judgment module 3;

[0069] DMA management and analysis module 1 establishes several DMA zones based on the actual water supply situation in the city, and constructs an information data collection model for basic data of the pipe network in the DMA zones to collect basic water supply information of the DMA zones;

[0070] The DMA zone water volume calculation module 2 counts the water sales volume in the zone and the error caused by the metering error of the water supply equipment according to the actual water supply situation of the DMA zone pipe network and the basic water supply information, and calculates the monthly standard water supply volume and the standard monthly compensation water volume in the zone;

[0071] The production and sales difference rate and water loss judgment module 3 combines the basic water supply information, the standard monthly water supply and the standard monthly compensation water to calculate the standard monthly production and sales difference rate within the DMA partition, and judges the water loss based on the standard monthly production and sales difference rate, and repairs the DMA partition pipeline according to the judgment result.

[0072] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present disclosure is not limited by the order of the actions described, because according to the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0073] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0074] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A water loss calculation method based on the DMA zone production and sales difference rate of the standard month, characterized in that: The following steps are involved: Establish several DMA zones based on the actual water supply situation in the city, and construct an information-based data collection model for the basic data of the pipe network in the DMA zones to collect the basic water supply information of the DMA zones; The basic water supply information includes the average daily water supply volume in the area, the monthly water supply period and fee table information, the normal water loss value, and the necessary water consumption value; According to the actual water supply situation of the DMA partitioned pipe network and the basic water supply information, the water sales volume in the partition and the error caused by the metering error of the water supply equipment are counted, and the monthly standard water supply volume and the standard monthly compensation water volume in the partition are calculated; the standard monthly production and sales difference rate in the DMA partition is calculated by combining the basic water supply information, the standard monthly water supply volume and the standard monthly compensation water volume, and the water loss is judged based on the standard monthly production and sales difference rate, and the pipelines in the DMA partition are repaired according to the judgment result; The calculation method of the standard monthly production-sales difference rate is: Among them, X is the standard monthly production-sales difference rate, C is the standard monthly production-sales difference, G is the standard monthly water supply, B is the standard monthly water supply, g The standard monthly water supply compensation amount; For the standard monthly production-sales difference C, the specifics are: C=(G+B g )-(S+B s ) Among them, S is the standard monthly water sales volume, B s is the standard monthly water sales compensation amount; The calculation process of the standard monthly water sales volume is as follows: According to the household number or meter number, the remote meter under the centralized reading system is matched, and the total monthly water sales of each remote meter is calculated, and the average daily water sales are calculated. Based on the number of days in the standard month, the standard monthly water sales of the remote meter are calculated according to the average daily water sales; According to the household number or meter number, the non-remote meter under the centralized reading system is matched, and the total monthly water sales of each non-remote meter is calculated, and the average daily water sales are calculated; based on the number of days in the standard month, the standard monthly water sales of the non-remote meter are calculated according to the average daily water sales; Calculate the sum of the standard monthly water sales volume of the remote charging meter and the standard monthly water sales volume of the non-remote charging meter to obtain the standard monthly water sales volume; The remote transmission fee table and the non-remote transmission fee table are obtained by combining the basic water supply information and distinguishing according to household number matching in the DMA partition; The calculation process of the standard monthly compensation water volume is as follows: In the DMA zone, according to the monthly water supply and monthly water sales for greening, sewage, fire fighting and related metering, the monthly water supply compensation and monthly water sales compensation are obtained, and the average daily water supply compensation and average daily water sales compensation are calculated; Based on the number of days in the standard month, the standard monthly water sales compensation amount and the standard monthly water supply compensation amount are calculated according to the average daily water supply compensation amount and the average daily water sales compensation amount; The process of judging water loss based on the standard monthly production-sales difference rate is as follows: Obtain the measured value of monthly water supply and the measured value of monthly water sales in the DMA partition in real time, and calculate the water volume calculation value of the production and sales difference rate; It is determined whether the water volume calculation value of the production-sales difference rate is greater than the standard monthly production-sales difference rate. If so, an abnormal water loss early warning model is generated, and the natural leakage water volume is calculated according to the abnormal water loss early warning model.

2. The water loss calculation method based on the DMA zone production and sales difference rate of the standard month according to claim 1 is characterized in that: The process of establishing several DMA partitions based on the actual water supply situation in the city and constructing the information data collection model of the basic data of the pipe network in the DMA partitions is as follows: Select zones based on the urban terrain and the existing pipe network layout, and cut the urban water supply and distribution system into several independent areas by closing valves or installing flow meters to form several DMA zones at various levels; Install a flow meter and a remote transmission device at the entrance section of the DMA partition to monitor the water supply information within the DMA partition; Construct a data collection model for the basic data informatization of the pipeline network, collect the water supply flow monitoring results, and obtain basic water supply information.

3. The water loss calculation method based on the DMA zone production and sales difference rate of the standard month according to claim 1 is characterized in that: The calculation process of the natural water loss is as follows: According to the water supply basic information, the normal water loss value and the necessary water consumption value in the DMA partition are obtained; The normal water loss value and the necessary water consumption value are added together to obtain the natural water loss.

4. A water loss calculation device based on the DMA partition production and sales difference rate of a standard month, used to implement the water loss calculation method based on the DMA partition production and sales difference rate of a standard month as claimed in any one of claims 1 to 3, characterized in that: include: DMA management and analysis module (1), DMA zone water volume calculation module (2) and production and sales difference rate and water loss judgment module (3); The DMA management and analysis module (1) establishes a number of DMA zones based on the actual water supply situation in the city, and constructs an information data collection model for basic data of the pipe network in the DMA zones, and collects basic water supply information of the DMA zones; The DMA zone water volume calculation module (2) calculates the water sales volume in the zone and the error caused by the metering error of the water supply equipment according to the actual water supply situation of the DMA zone pipe network and the basic water supply information, and calculates the monthly standard water supply volume and the standard monthly compensation water volume in the zone; The production-sales difference rate and water loss judgment module (3) calculates the standard monthly production-sales difference rate in the DMA partition by combining the basic water supply information, the standard monthly water supply volume and the standard monthly compensation water volume, and judges the water loss based on the standard monthly production-sales difference rate, and repairs the DMA partition pipeline according to the judgment result.

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