Household metering method and device for centralized hot water circulation system

Abstract

The invention relates to a household metering method and device of a centralized hot water circulation system, and belongs to the technical field of flow detection, and the household metering method of the centralized hot water circulation system comprises the following steps: obtaining correction readings of a heat supply meter and a heat return meter corresponding to a target user at two adjacent sampling moments; based on a difference value between a first difference value and a second difference value, the water consumption of the target user in two adjacent sampling moments is determined, and the first difference value is a corrected reading difference value of a heat supply meter corresponding to the target user in the two adjacent sampling moments; the second difference value is a corrected reading difference value of the heat return table corresponding to the target user at two adjacent sampling moments. The household metering accuracy of the centralized hot water circulation system can be effectively improved, and then the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flow detection, and particularly to a household metering method and device for a centralized hot water circulation system. Background Art

[0002] With the acceleration of the urbanization process and the deepening of the concept of green buildings, the centralized hot water circulation supply system has become the mainstream heating mode in residential communities, hotels, hospitals and large public buildings. This system significantly reduces the energy consumption of decentralized water supply and improves the hot water usage experience through technologies such as centralized heat source supply and pipe network circulation heat preservation.

[0003] However, in the household metering link of the large circulation (hot supply and hot return branch pipes reaching households), due to factors such as the metering error of the water meter itself and the asynchronous acquisition time of the hot supply meter and the hot return meter, the current metering scheme results in inaccurate final metering results, leading to frequent disputes among users during settlement and affecting the user experience.

[0004] Therefore, how to improve the accuracy of household metering in the centralized hot water circulation system has become an urgent technical problem to be solved. Summary of the Invention

[0005] In view of this, it is necessary to provide a household metering method and device for a centralized hot water circulation system to solve the problem of poor user experience caused by insufficient accuracy of household metering in the current centralized hot water circulation system.

[0006] To solve the above problems, in a first aspect, the present invention provides a household metering method for a centralized hot water circulation system, including: Obtaining the corrected readings of the hot supply meter and the hot return meter corresponding to the target user at two adjacent sampling moments; Determining the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference, where the first difference is the difference between the corrected readings of the hot supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference between the corrected readings of the hot return meter corresponding to the target user at two adjacent sampling moments; Wherein, the corrected reading of the hot supply meter at any sampling moment is determined based on the true reading of the hot supply meter at any sampling moment and the correction parameter, the corrected reading of the hot return meter at any sampling moment is determined based on the true reading of the hot return meter at any sampling moment and the correction parameter, and the correction parameter is determined based on the test data obtained by testing water meters of the same type as the hot supply meter and the hot return meter at a preset temperature and a preset flow rate.

[0007] In a possible implementation manner, the determination of the correction parameter includes: Setting a plurality of different temperature intervals and flow intervals; Determine the preset temperature and preset flow based on the median of each temperature range and flow range, perform a reading test on the target water meter for a preset duration at the preset temperature and preset flow, obtain the true reading set of the target water meter, and determine the theoretical reading set of the target water meter based on the preset flow. The target water meter is of the same model as the heat supply meter and the heat return meter; Based on the true reading set and the theoretical reading set of the target water meter, determine the correction parameters for the corresponding temperature range and flow range.

[0008] In a possible implementation, the determining the correction parameters for the corresponding temperature range and flow range based on the true reading set and the theoretical reading set of the target water meter includes: Determine the difference between the true reading set of the target water meter and the mean of the theoretical reading set as the correction parameter for the corresponding temperature range and flow range.

[0009] In a possible implementation, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter corresponding to the temperature and flow at any sampling moment; The corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter corresponding to the temperature and flow at any sampling moment.

[0010] In a possible implementation, the method further includes: Based on the water consumption of the target user at every two adjacent sampling moments within the target period, determine the water consumption of the target user within the target period. The target period is the query period input externally.

[0011] In a possible implementation, the time interval between two adjacent sampling moments is less than or equal to the first time threshold.

[0012] In a possible implementation, the sampling time interval between the heat supply meter and the heat return meter at the same sampling moment is less than or equal to the second time threshold.

[0013] On the other hand, the present invention also provides a household metering device for a centralized hot water circulation system, including: An acquisition module for acquiring the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments; A determination module for determining the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference. The first difference is the difference between the corrected readings of the heat supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference between the corrected readings of the heat return meter corresponding to the target user at two adjacent sampling moments; Among them, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter, and the corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter. The correction parameter is determined based on the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate.

[0014] In a second aspect, the present invention further provides a flow metering device, including a memory and a processor, wherein, the memory is used for storing a program; the processor is coupled to the memory and is used for executing the program stored in the memory to implement the steps in the household metering method of the centralized hot water circulation system in any of the above implementation manners.

[0015] In a third aspect, the present invention further provides a computer-readable storage medium for storing computer-readable programs or instructions, and when the programs or instructions are executed by a processor, the steps in the household metering method of the centralized hot water circulation system in any of the above implementation manners can be implemented.

[0016] The beneficial effects of the present invention are as follows: The household metering method and device for the centralized hot water circulation system provided by the present invention determine the correction parameter through the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate, and then correct the true readings of the heat supply meter and the heat return meter through the correction parameter to obtain the corrected readings, so as to overcome the measurement error of the water meter itself and improve the accuracy of the metering result. Then, the water consumption of the target user within two adjacent sampling moments is determined through the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments, and a metering result with high accuracy is obtained. The present invention can effectively improve the accuracy of household metering of the centralized hot water circulation system, and further improve the user experience. Description of the Drawings

[0017] Figure 1 It is a schematic flowchart of an embodiment of the household metering method for the centralized hot water circulation system provided by the present invention; Figure 2 It is a schematic structural diagram of an embodiment of the household metering system for the centralized hot water circulation system provided by the present invention; Figure 3 It is a schematic structural diagram of an embodiment of the household metering device for the centralized hot water circulation system provided by the present invention; Figure 4 It is a schematic structural diagram of an embodiment of the flow metering device provided by the present invention. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

[0019] In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0020] The descriptions such as "first" and "second" involved in the embodiments of the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the technical features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0021] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present invention. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] Before presenting the embodiments, the following terms are explained first.

[0023] Centralized hot water circulation system: A centralized hot water circulation system is a system that provides stable hot water for multiple water use points through centralized heating and circulating supply methods, and is widely used in places such as hotels, hospitals, residential communities, and schools. Its core feature is "centralized heating + circulating pipe network", ensuring that users can quickly obtain hot water when they turn on the faucet and avoiding wasting cold water.

[0024] Hot water supply meter: A water meter used to measure the hot water flow in the hot water supply pipeline of a centralized hot water circulation system.

[0025] Hot water return meter: A water meter used to measure the hot water flow in the return water pipeline of a centralized hot water circulation system.

[0026] The present invention provides a household metering method and device for a centralized hot water circulation system, which are described separately below.

[0027] Figure 1 It is a schematic flowchart of an embodiment of the household metering method for the centralized hot water circulation system provided by the present invention, asFigure 1 As shown in Figure 1 , the household metering method for a centralized hot water circulation system includes: S101. Obtain the corrected readings of the hot water supply meter and the hot water return meter corresponding to the target user at two adjacent sampling times.

[0028] It should be noted that: The target user can be any water user in the centralized hot water circulation system. To accurately determine the water consumption of the target user, first, the corrected readings of the hot water supply meter and the hot water return meter corresponding to the target user at two adjacent sampling times can be obtained, so as to determine the water supply volume of the water supply pipeline at the target user and the water return volume of the water return pipeline at the target user within two adjacent sampling times. The determination scheme for the corrected readings of the hot water supply meter and the hot water return meter will be specifically introduced below. In addition, to avoid measurement errors caused by too low water meter resolution, the highest resolution of the hot water supply meter and the hot water return meter involved in the present invention can both reach 0.001 m³.

[0029] S102. Determine the water consumption of the target user within two adjacent sampling times based on the difference between the first difference and the second difference. The first difference is the difference between the corrected readings of the hot water supply meter corresponding to the target user at two adjacent sampling times, and the second difference is the difference between the corrected readings of the hot water return meter corresponding to the target user at two adjacent sampling times.

[0030] It should be noted that: After obtaining the corrected readings of the hot water supply meter and the hot water return meter corresponding to the target user at two adjacent sampling times, the difference between the corrected readings of the hot water supply meter corresponding to the target user at two adjacent sampling times can be used as the first difference, and the difference between the corrected readings of the hot water return meter corresponding to the target user at two adjacent sampling times can be used as the second difference. Then, the difference between the first difference and the second difference is determined as the water consumption of the target user within two adjacent sampling times, that is, the difference between the water supply volume of the water supply pipeline at the target user and the water return volume of the water return pipeline at the target user within two adjacent sampling times is used as the water consumption of the target user within two adjacent sampling times. In addition, to avoid the water consumption of the target user within two adjacent sampling times being less than 0 due to water meter measurement errors, if the water consumption of the target user within two adjacent sampling times is calculated, the water consumption of the target user within two adjacent sampling times can be determined as 0.

[0031] Among them, the corrected reading of the hot water supply meter at any sampling time is determined based on the true reading of the hot water supply meter at any sampling time and the correction parameter. The corrected reading of the hot water return meter at any sampling time is determined based on the true reading of the hot water return meter at any sampling time and the correction parameter. The correction parameter is determined based on the test data obtained by testing water meters of the same model as the hot water supply meter and the hot water return meter at a preset temperature and a preset flow rate.

[0032] It should be noted that: in order to avoid the measurement error of the water meter itself, the present invention introduces a correction parameter for the water meter reading. Considering that the error degree of the water meter varies under different temperatures and flow rates, the present invention determines the correction parameter through the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate, so as to ensure the accuracy of the corrected readings of the heat supply meter and the heat return meter, and further improve the accuracy of the final measurement result and enhance the user experience. The correction process of the water meter reading can be directly completed at the water meter end. For example, the determined correction parameter can be stored in the water meter, and the reading correction can be directly completed at the water meter end to reduce the complexity of the measurement process. Of course, the correction process of the water meter reading can be carried out after obtaining the true reading of the water meter, and the present invention does not make specific limitations on this. It can be understood that the household metering method of the centralized hot water circulation system provided by the present invention can be applied not only to the household metering of the centralized hot water circulation system, but also to other similar flow measurement scenarios, such as the household metering scenario of the centralized oil supply pipeline, etc.

[0033] In summary, the household metering method of the centralized hot water circulation system provided by the embodiments of the present invention determines the correction parameter through the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate, and then corrects the true readings of the heat supply meter and the heat return meter through the correction parameter to obtain the corrected readings, so as to overcome the measurement error of the water meter itself, improve the accuracy of the measurement result, and then determine the water consumption of the target user within two adjacent sampling moments through the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments, and obtain a measurement result with high accuracy. The present invention can effectively improve the accuracy of household metering of the centralized hot water circulation system, and further improve the user experience.

[0034] In some embodiments of the present invention, the determination of the correction parameter includes: Set multiple different temperature ranges and flow ranges; Based on the median values of each temperature range and flow range, determine the preset temperature and the preset flow rate. Conduct a reading test on the target water meter for a preset duration under the preset temperature and the preset flow rate to obtain the true reading set of the target water meter, and determine the theoretical reading set of the target water meter based on the preset flow rate. The target water meter is a water meter of the same model as the heat supply meter and the heat return meter; Based on the true reading set and the theoretical reading set of the target water meter, determine the correction parameter corresponding to the temperature range and the flow range.

[0035] It should be noted that: Since the requirements for the maximum allowable error of water meters in national standard documents vary with water temperature and flow rate (for example, under the same accuracy class, there are differences in the maximum allowable errors corresponding to high-zone flow rates and low-zone flow rates, and under high-zone flow rates, there are also differences in the maximum allowable errors corresponding to water temperatures of 0-30°C and water temperatures above 30°C). Multiple different temperature ranges and flow ranges can be set first. For example, the temperature range can be at intervals of 5°C, and the flow range is set for high-zone flow rates and low-zone flow rates. Within the high-zone flow rate range, it can be at intervals of 50 m³ / h, and within the low-zone flow rate range, it can be at intervals of 0.2 m³ / h.

[0036] Subsequently, the preset temperature and preset flow rate can be determined according to the median values of each temperature range and flow range. At the preset temperature and preset flow rate, a reading test is performed on the target water meter (i.e., a water meter of the same model as the heat supply meter and heat return meter) for a preset duration (such as 1 hour) to obtain the true reading set of the target water meter, and the theoretical reading set of the target water meter is determined according to the preset flow rate. The theoretical reading of the target water meter can be calculated based on the preset flow rate and the sampling interval. The sampling interval during the test generally remains consistent with the sampling interval during the actual application process to ensure the reliability of the finally obtained correction parameters. Finally, the correction parameters corresponding to the temperature range and flow range can be determined according to the true reading set and the theoretical reading set of the target water meter. By setting multiple different temperature ranges and flow ranges to determine the correction parameters corresponding to the temperature range and flow range, the accuracy of water meter reading correction can be improved, thereby improving the accuracy of the measurement result.

[0037] In some embodiments of the present invention, determining the correction parameters corresponding to the temperature range and flow range based on the true reading set and the theoretical reading set of the target water meter includes: Determining the difference between the mean values of the true reading set and the theoretical reading set of the target water meter as the correction parameter corresponding to the temperature range and flow range.

[0038] It should be noted that: When determining the correction parameters corresponding to the temperature range and flow range based on the true reading set and the theoretical reading set of the target water meter, the difference between the mean values of the true reading set and the theoretical reading set of the target water meter can be determined as the correction parameter corresponding to the temperature range and flow range. It can be understood that determining the difference between the mean values of the true reading set and the theoretical reading set of the target water meter as the correction parameter corresponding to the temperature range and flow range is only an optional solution to reduce the calculation complexity. If higher correction accuracy is required, more accurate correction parameters can also be determined by constructing a neural network. The present invention does not make specific limitations on this.

[0039] In some embodiments of the present invention, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameters corresponding to the temperature and flow rate at any sampling moment; The corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameters corresponding to the temperature and flow rate at any sampling moment.

[0040] It should be noted that: when correcting the readings of the heat supply meter and the heat return meter, the true readings at the sampling moments can be corrected according to the correction parameters corresponding to the temperature and flow rate at the sampling moments, so as to obtain the corrected readings of the heat supply meter and the heat return meter, thereby ensuring the effectiveness of the reading correction and improving the accuracy of the measurement results.

[0041] In some embodiments of the present invention, the method further includes: Based on the water consumption of the target user at every two adjacent sampling moments within the target period, determine the water consumption of the target user within the target period, where the target period is a query period input externally.

[0042] It should be noted that: when the water consumption is queried by inputting the query period externally (for example, when the staff or the user queries the water consumption), the water consumption of the target user within the target period can be determined based on the water consumption at every two adjacent sampling moments within the query period and directly displayed, without displaying the intermediate quantities involved in the operation, thereby avoiding disputes caused by the user's doubts about the billing data.

[0043] In some embodiments of the present invention, the time interval between two adjacent sampling moments is less than or equal to the first time threshold.

[0044] It should be noted that: in order to avoid measurement errors caused by too long sampling intervals, in the present invention, the time interval between two adjacent sampling moments is less than or equal to the first time threshold (for example, the first time threshold can be set to 1 minute), thereby further improving the accuracy of the measurement results.

[0045] In some embodiments of the present invention, the sampling time interval between the heat supply meter and the heat return meter at the same sampling moment is less than or equal to the second time threshold.

[0046] It should be noted that: in order to avoid measurement errors caused by asynchronous acquisition times of the heat supply meter and the heat return meter, in the present invention, the sampling time interval between the heat supply meter and the heat return meter at the same sampling moment is less than or equal to the second time threshold (for example, the second time threshold can be set to 500 ms), thereby further improving the accuracy of the measurement results.

[0047] Combined with Figure 2As can be seen, in the present invention, the reading correction of the water meter can be completed on the "terminal" side (i.e., the multi-loop water meter head), the determination of the measurement result can be completed on the "edge" side (i.e., the data collector), and the display of the measurement result can be completed on the "cloud" side (i.e., the energy consumption monitoring platform). While reducing the measurement error and improving the accuracy of the measurement result, the present invention can also effectively reduce the complexity of the measurement process.

[0048] To better implement the household metering method of the centralized hot water circulation system in the embodiments of the present invention, correspondingly, based on the household metering method of the centralized hot water circulation system, as Figure 3 shown, the embodiments of the present invention also provide a household metering device for a centralized hot water circulation system. The household metering device 300 for a centralized hot water circulation system includes: An acquisition module 301, configured to acquire the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments; A determination module 302, configured to determine the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference. The first difference is the difference between the corrected readings of the heat supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference between the corrected readings of the heat return meter corresponding to the target user at two adjacent sampling moments; Wherein, the corrected reading of the heat supply meter at any sampling moment is determined based on the actual reading and the correction parameter of the heat supply meter at any sampling moment, and the corrected reading of the heat return meter at any sampling moment is determined based on the actual reading and the correction parameter of the heat return meter at any sampling moment. The correction parameter is determined based on the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate.

[0049] The household metering device 300 for a centralized hot water circulation system provided in the above embodiments can implement the technical solutions described in the embodiments of the household metering method of the centralized hot water circulation system. The specific implementation principles of the above modules or units can be referred to the corresponding content in the embodiments of the household metering method of the centralized hot water circulation system, which will not be elaborated here.

[0050] As Figure 4 shown, the present invention also correspondingly provides a flow metering device 400. The flow metering device 400 includes a processor 401, a memory 402, and a display 403. Figure 4 Only some components of the flow metering device 400 are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be alternatively implemented.

[0051] In some embodiments, the processor 401 may be a central processing unit (CPU), a microprocessor, or other data processing chips, which is used to run the program code stored in the memory 402 or process data, such as the magnetic resonance image optimization method in the present invention.

[0052] In some embodiments, the processor 401 may be a single server or a server group. The server group may be centralized or distributed. In some embodiments, the processor 401 may be local or remote. In some embodiments, the processor 401 may be implemented on a cloud platform. In one embodiment, the cloud platform may include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination of the above.

[0053] In some embodiments, the memory 402 may be an internal storage unit of the flow metering device 400, such as the hard disk or memory of the flow metering device 400. In some other embodiments, the memory 402 may also be an external storage device of the flow metering device 400, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc., equipped on the flow metering device 400.

[0054] Furthermore, the memory 402 may also include both the internal storage unit and the external storage device of the flow metering device 400. The memory 402 is used to store the application software installed on the flow metering device 400 and various types of data.

[0055] In some embodiments, the display 403 may be an LED display, a liquid crystal display, a touch liquid crystal display, an Organic Light-Emitting Diode (OLED) toucher, etc. The display 403 is used to display the information on the flow metering device 400 and to display a visual user interface. The components of the flow metering device 400, namely the processor 401, the memory 402, and the display 403, communicate with each other through a system bus.

[0056] In one embodiment, when the processor 401 executes the household metering program of the centralized hot water circulation system in the memory 402, the following steps may be achieved: Obtain the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments; Determine the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference, where the first difference is the difference between the corrected readings of the heat supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference between the corrected readings of the heat return meter corresponding to the target user at two adjacent sampling moments; Among them, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter, and the corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter. The correction parameter is determined based on the test data obtained by testing a water meter of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate.

[0057] It should be understood that when the processor 401 executes the household metering program of the centralized hot water circulation system in the memory 402, in addition to the above functions, other functions can also be realized. For specific details, please refer to the description of the corresponding method embodiments above.

[0058] Furthermore, the type of the flow metering device 400 mentioned in the embodiments of the present invention is not specifically limited. The flow metering device 400 can be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of the portable electronic device include, but are not limited to, portable electronic devices equipped with IOS, android, microsoft or other operating systems. The above portable electronic device can also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (such as a touch panel). It should also be understood that in some other embodiments of the present invention, the flow metering device 400 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

[0059] Correspondingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store a computer-readable program or instruction. When the program or instruction is executed by a processor, it can implement the steps or functions in the household metering method of the centralized hot water circulation system provided by the above method embodiments.

[0060] Those skilled in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program. The computer program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory, etc.

[0061] The above has introduced in detail the household metering method and device of the centralized hot water circulation system provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A household metering method for a centralized hot water circulation system, characterized in that, including: Obtaining the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments; Determining the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference, where the first difference is the difference in the corrected readings of the heat supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference in the corrected readings of the heat return meter corresponding to the target user at two adjacent sampling moments; Wherein, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter, and the corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter, and the correction parameter is determined based on the test data obtained by testing water meters of the same model as the heat supply meter and the heat return meter at a preset temperature and a preset flow rate.

2. The household metering method of the centralized hot water circulation system according to claim 1, characterized in that, The determination of the correction parameter includes: Setting a plurality of different temperature ranges and flow rate ranges; Determining a preset temperature and a preset flow rate based on the median of each temperature range and flow rate range, performing a reading test on the target water meter for a preset duration at the preset temperature and the preset flow rate to obtain a set of true readings of the target water meter, and determining a set of theoretical readings of the target water meter based on the preset flow rate, where the target water meter is a water meter of the same model as the heat supply meter and the heat return meter; Determining the correction parameter corresponding to the temperature range and the flow rate range based on the set of true readings and the set of theoretical readings of the target water meter.

3. The household metering method of the centralized hot water circulation system according to claim 2, characterized in that, The determining the correction parameter corresponding to the temperature range and the flow rate range based on the set of true readings and the set of theoretical readings of the target water meter includes: Determining the difference between the mean values of the set of true readings and the set of theoretical readings of the target water meter as the correction parameter corresponding to the temperature range and the flow rate range.

4. The household metering method of the centralized hot water circulation system according to claim 2, characterized in that, The corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter corresponding to the temperature and the flow rate at any sampling moment; The corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter corresponding to the temperature and the flow rate at any sampling moment.

5. The household metering method for the centralized hot water circulation system according to claim 1, characterized in that, The method further includes: Determining the water consumption of the target user within the target period based on the water consumption of the target user at every two adjacent sampling moments within the target period, where the target period is a query period input externally.

6. The household metering method for a centralized hot water circulation system according to any one of claims 1 to 5, characterized in that, The time interval between two adjacent sampling moments is less than or equal to the first time threshold.

7. The household metering method for the centralized hot water circulation system according to any one of claims 1 to 5, characterized in that, The sampling time interval between the heat supply meter and the heat return meter at the same sampling moment is less than or equal to the second time threshold.

8. A household metering device for a centralized hot water circulation system, characterized in that, including: An obtaining module, configured to obtain the corrected readings of the heat supply meter and the heat return meter corresponding to the target user at two adjacent sampling moments; A determining module, configured to determine the water consumption of the target user within two adjacent sampling moments based on the difference between the first difference and the second difference, where the first difference is the difference in the corrected readings of the heat supply meter corresponding to the target user at two adjacent sampling moments, and the second difference is the difference in the corrected readings of the heat return meter corresponding to the target user at two adjacent sampling moments; Among them, the corrected reading of the heat supply meter at any sampling moment is determined based on the true reading of the heat supply meter at any sampling moment and the correction parameter, and the corrected reading of the heat return meter at any sampling moment is determined based on the true reading of the heat return meter at any sampling moment and the correction parameter. The correction parameter is determined based on the test data obtained by testing a water meter of the same model as the heat supply meter and the heat return meter under a preset temperature and a preset flow rate.

9. A flow metering device, characterized in that, Comprising a memory and a processor, wherein, The memory is used for storing a program; The processor is coupled to the memory and is used for executing the program stored in the memory to implement the steps in the household metering method of the centralized hot water circulation system described in any one of claims 1 to 7 above.

10. A computer-readable storage medium, characterized in that, For storing a computer-readable program or instruction, when the program or instruction is executed by a processor, it can implement the steps in the household metering method of the centralized hot water circulation system described in any one of claims 1 to 7 above.

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