Gas meter anti-interference metering method and device and electronic equipment
By setting the flow threshold and count threshold, establishing the mapping relationship between the flow interval and count value, and buffering and accumulating flow data, the problem of inaccurate metering of ultrasonic gas meters under pipeline pressure fluctuations is solved, and higher metering accuracy and stability are achieved.
Patent Information
- Application Number
- CN202510782315.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the pipeline pressure fluctuates greatly, the measurement accuracy and stability of existing ultrasonic gas meters are disturbed, resulting in inaccurate measurement data.
By setting the effective traffic threshold and count threshold, establish a mapping relationship between the traffic interval and the count value, cache and accumulate traffic data, eliminate interfering data, and improve measurement accuracy and stability.
Effectively eliminates interfering data caused by pipeline pressure fluctuations, improves the metering accuracy and stability of ultrasonic gas meter, and enhances the recording speed and metering efficiency of uninterference data.
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Figure CN120293268A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of gas meter measurement, and particularly to a measurement method, device, electronic device and storage medium for anti-interference of gas meters. Background Art
[0002] As a new type of intelligent household gas meter, the ultrasonic gas meter has shown significant innovation in technology. It uses advanced ultrasonic technology to accurately measure the gas flow. The working principle of the ultrasonic gas meter is to utilize the velocity difference generated when ultrasonic waves propagate in the gas medium in the downstream and upstream directions, and calculate the gas flow velocity through this velocity difference, and then accurately calculate the gas consumption of users.
[0003] The prior art mainly reduces the influence of electromagnetic interference through hardware optimization circuit design, using filters, etc., and effectively isolating and shielding the ultrasonic transducer and signal processing circuit in terms of structure to reduce the interference of the external electromagnetic field. However, when the household pipeline is long and at the peak gas usage time, the pressure fluctuation of the pipeline will be relatively large, resulting in the selection of interference data for measurement during the measurement process of the gas meter, thereby reducing the measurement accuracy and stability of the ultrasonic gas meter. Summary of the Invention
[0004] To solve the problems existing in the prior art, one or more embodiments of this specification describe a measurement method, device, electronic device and storage medium for anti-interference of gas meters.
[0005] According to the first aspect, a measurement method for anti-interference of gas meters is provided, and the method includes: S101. Obtain the flow data of the gas meter, compare the flow data with a set flow valid threshold, and when the flow data is greater than the flow valid threshold, cache the flow data and execute S102; S102. Establish a mapping relationship between a set flow interval and a set count value, calculate an accumulated count value based on the flow interval where the flow data is located, and when the accumulated count value is greater than a set count threshold, accumulate the cached flow data into the user data.
[0006] Preferably, establishing the mapping relationship between the set flow interval and the set count value includes: the count value corresponding to the flow interval close to the flow valid threshold is less than the count value corresponding to the flow interval far from the flow valid threshold.
[0007] Preferably, the method further includes: when the accumulated count value is less than or equal to the count threshold, if the flow data of the gas meter obtained is less than the flow valid threshold, discard the cached flow data.
[0008] Preferably, the method further includes: acquiring the flow data of the gas meter based on a set sampling frequency, and when the cumulative count value is greater than a set count threshold, adding the subsequently acquired flow data to the user data.
[0009] Preferably, the method further includes: caching the flow data based on the flow data of the gas meter and the communication status of the gas meter, and adding the cached flow data to the user data or discarding the cached flow data based on the gas usage identification bit of the gas meter.
[0010] Preferably, the method further includes: before the gas meter uploads data online, caching the flow generated during the upload process of the gas meter or discarding the flow generated during the upload process of the gas meter based on the meter data of the gas meter and the flow valid threshold.
[0011] Preferably, there are 3 each for the flow range and the count value.
[0012] According to a second aspect, a metering device for anti-interference of a gas meter is provided, and the device includes: A primary filtering module for acquiring the flow data of the gas meter, comparing the flow data with a set flow valid threshold, and when the flow data is greater than the flow valid threshold, executing a secondary filtering module; A secondary filtering module for establishing a mapping relationship between a set flow range and a set count value, calculating a cumulative count value based on the flow range where the flow data is located, and when the cumulative count value is greater than a set count threshold, adding the flow data to the user data.
[0013] According to a third aspect, an electronic device is provided, including a processor and a memory; The processor is connected to the memory; The memory is used for storing executable program code; The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to execute the steps of the method provided in the first aspect or any one of the possible implementation manners of the first aspect.
[0014] According to a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and instructions are stored in the computer-readable storage medium. When the instructions are run on a computer or a processor, the computer or the processor is caused to execute the method provided in the first aspect or any one of the possible implementation manners of the first aspect.
[0015] The beneficial effects of the present invention are: 1. The method and device provided in the embodiments of this specification eliminate interference data generated by pipeline pressure fluctuations by setting a flow effective threshold and a counting threshold, improving the measurement accuracy and stability of the ultrasonic gas meter; 2. The method and device provided in the embodiments of this specification make it easier to record data exceeding the flow effective threshold into user data by setting different flow intervals corresponding to different count values, improving the recording speed of non-interfered data; 3. The method and device provided in the embodiments of this specification, when the accumulated count value is greater than the counting threshold, the subsequent acquired flow data will be directly accumulated in the user data without performing the judgment of the flow interval and the operation of the accumulated count value, thereby improving the measurement efficiency of the gas meter; 4. The method and device provided in the embodiments of this specification avoid the situation where the ultrasonic gas meter actually does not use gas but the accumulated gas volume increases by judging the flow data, the communication status of the gas meter, and the gas usage identification bit of the gas meter, improving the measurement accuracy and stability of the ultrasonic gas meter. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a flowchart of a measurement method for anti-interference of a gas meter in a specific implementation of this specification; Figure 2 It is a structural diagram of a measurement device for anti-interference of a gas meter in a specific implementation of this specification; Figure 3 It is a structural diagram of an electronic device in a specific implementation of this specification. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application.
[0019] In the following description, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of the present application, and different embodiments can be replaced or combined. Therefore, the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even though such embodiments may not be explicitly described in the following content.
[0020] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes can be made to the functions and arrangements of the described elements without departing from the scope of the present application. Various processes or components can be appropriately omitted, substituted, or added to each example. For example, the described method can be executed in a different order than the described order, and various steps can be added, omitted, or combined. In addition, the features described for some examples can be combined into other examples.
[0021] Refer to Figure 1 , Figure 1 is a schematic flowchart of a metering method for anti-interference of a gas meter provided by an embodiment of the present application. In the embodiment of the present application, the method includes: S101. Obtain the flow rate data of the gas meter, compare the flow rate data with a set flow rate valid threshold. When the flow rate data is greater than the flow rate valid threshold, cache the flow rate data and execute S102; S102. Establish a mapping relationship between a set flow rate range and a set count value, calculate an accumulated count value based on the flow rate range in which the flow rate data is located. When the accumulated count value is greater than a set count threshold, accumulate the cached flow rate data into the user data.
[0022] The execution subject of the present application can be the control unit of the gas meter.
[0023] In the embodiments of this specification, the control unit will first set a flow effective threshold, a counting threshold, and multiple flow ranges. Each flow range corresponds to a count value. When the control unit obtains the flow data of the gas meter, it will compare the flow data with the flow effective threshold. When the flow data is less than or equal to the flow effective threshold, it is considered that the obtained flow data is invalid and discarded; when the flow data is greater than the flow effective threshold, the flow data is first cached, and then it is judged which flow range the flow data is in, and the count value corresponding to this range is selected for accumulation to obtain an accumulated count value. When the accumulated count value is greater than the counting threshold, the cached flow data is accumulated into the user data. When the accumulated count value is less than the counting threshold, the flow data of the gas meter is continuously obtained for judgment until the accumulated count value is greater than the counting threshold. In this application, by setting the flow effective threshold and the counting threshold, the interference data generated by pipeline pressure fluctuations is eliminated, improving the measurement accuracy and stability of the ultrasonic gas meter.
[0024] In an implementable manner, the count value corresponding to the flow range close to the flow effective threshold is less than the count value corresponding to the flow range far from the flow effective threshold.
[0025] In the embodiments of this specification, the smaller the count value of the flow range closer to the flow effective threshold is. That is, the degree of closeness or distance of the flow range from the flow effective threshold is judged according to the absolute value of the difference between the edge value of the flow range and the flow effective threshold. As an example, assume that the flow effective threshold is Qs, and Q1 and Q2 are set, where Q1 is greater than Qs and Q1 is less than Q2. There are 3 flow ranges. The first flow range is from Qs to Q1, and the count value in this range is 1. The second flow range is from Q1 to Q2, and the count value in this range is 2. The third flow range is greater than Q2, and the count value in this range is 4. By setting different count values corresponding to different flow ranges, the data exceeding the flow effective threshold is more likely to be recorded into the user data, improving the recording speed of the non-interference data.
[0026] In an implementable manner, when the accumulated count value is less than or equal to the counting threshold, if the obtained flow data of the gas meter is less than the flow effective threshold, the cached flow data is discarded.
[0027] In the embodiments of this specification, when the accumulated count value is accumulated to the counting threshold, as long as the flow data is less than the flow effective threshold once, all the cached flow data is discarded, and the accumulated count value is cleared. By making a judgment when the accumulated count value is accumulated to the counting threshold, it is avoided that there is interference data in the cached flow data, ensuring the measurement accuracy of the ultrasonic gas meter.
[0028] In an implementable manner, the flow data of the gas meter is acquired based on a set sampling frequency. When the accumulated count value is greater than the set count threshold, the subsequently acquired flow data is accumulated into the user data.
[0029] In the embodiments of this specification, a sampling frequency is set. For example, sampling is performed once every 2 seconds, and the flow data of the gas meter can be obtained each time. When the accumulated count value is greater than the count threshold, the cached flow data is accumulated into the user data. At this time, it indicates that the gas meter has been in a continuous gas-using situation. To improve the metering efficiency of the gas meter, the subsequently acquired flow data will be directly accumulated in the user data without performing the judgment of the flow range and the operation of the accumulated count value.
[0030] When the ultrasonic gas meter conducts network communication, due to poor signal in some places, the transmission power of the communication module is relatively large, and the anti-interference performance is poor in the circuit board design, etc., it may interfere with the ultrasonic gas meter, resulting in an increase in the cumulative gas volume when the ultrasonic gas meter is actually not using gas. To prevent the above situation from occurring, in an implementable manner, the flow data is cached based on the flow data of the gas meter and the communication state of the gas meter, and the cached flow data is accumulated into the user data or discarded based on the gas-using identification bit of the gas meter.
[0031] In the embodiments of this specification, the flow data is compared with the flow valid threshold. If the flow data is less than or equal to the flow valid threshold, or the gas meter is not in the communication state, the flow data is discarded and the gas-using identification is cleared; when the flow data is greater than the flow valid threshold and the gas meter is in the communication state, the flow data is cached and the state of the gas-using identification bit is obtained. If the gas-using identification bit of the gas meter is set, the cached flow data is accumulated into the user data. If the gas-using identification bit of the gas meter is not set, the cached flow data is discarded.
[0032] In an implementable manner, the method further includes: before the gas meter uploads data through the network, caching the flow generated during the upload process of the gas meter or discarding the flow generated during the upload process of the gas meter based on the meter data of the gas meter and the flow valid threshold.
[0033] In the embodiments of this specification, before the gas meter uploads data through the network, if the meter data of the gas meter is zero, the flow during the upload process is cached. After the upload process ends, the magnitude relationship between the flow during the upload process and the flow valid threshold is compared. If the flow during the upload process is greater than the flow valid threshold, the flow is cached for subsequent sampling judgment steps for accumulation; if the flow during the upload process is less than or equal to the flow valid threshold, the flow is discarded.
[0034] Next, it will be combined with the attached Figure 2, a detailed introduction to the anti-interference metering device for gas meters provided in the embodiments of the present application will be given. It should be noted that the attached Figure 2 The anti-interference metering device for gas meters shown is used to execute the method of the embodiments of the present application. For the sake of convenience of description, only the parts related to the embodiments of the present application are shown. For the specific technical details not disclosed, please refer to the embodiments shown in the present application Figure 1 . Figure 1 See
[0035] . Figure 2 , Figure 2 is a schematic structural diagram of the anti-interference metering device for gas meters provided in the embodiments of the present application. As Figure 2 shown, the device includes: A primary filtering module 201 for obtaining the flow data of the gas meter, comparing the flow data with a set flow valid threshold, and when the flow data is greater than the flow valid threshold, executing the secondary filtering module; A secondary filtering module 202 for establishing a mapping relationship between a set flow range and a set count value, calculating an accumulated count value based on the flow range in which the flow data is located, and when the accumulated count value is greater than a set count threshold, adding the flow data to the user data.
[0036] In an implementable manner, the primary filtering module 201 is specifically configured to: Obtain the flow data of the gas meter based on a set sampling frequency, and when the accumulated count value is greater than a set count threshold, add the subsequently collected flow data to the user data.
[0037] In an implementable manner, the primary filtering module 201 is specifically configured to: Cache the flow data based on the flow data of the gas meter and the communication status of the gas meter, and add the cached flow data to the user data or discard the cached flow data based on the gas usage identification bit of the gas meter.
[0038] In an implementable manner, the primary filtering module 201 is specifically configured to: Before the gas meter uploads data over the network, cache the flow generated during the upload of the gas meter or discard the flow generated during the upload of the gas meter based on the meter data of the gas meter and the flow valid threshold.
[0039] In an implementable manner, the secondary filtering module 202 is specifically configured to: The count value corresponding to the flow range close to the flow valid threshold is less than the count value corresponding to the flow range far from the flow valid threshold.
[0040] In an implementable manner, the secondary filtering module 202 is specifically configured to: When the accumulated count value is less than or equal to the count threshold, if the obtained flow data of the gas meter is less than the flow valid threshold, the cached flow data is discarded.
[0041] In an implementable manner, the secondary filtering module 202 is specifically configured to: Both the flow range and the count value have three.
[0042] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present application can be implemented by means of software and / or hardware. The "units" and "modules" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware can be, for example, a Field-Programmable Gate Array (FPGA), an Integrated Circuit (IC), etc.
[0043] Each processing unit and / or module of the embodiments of the present application can be implemented by an analog circuit that implements the functions described in the embodiments of the present application, or can be implemented by software that executes the functions described in the embodiments of the present application.
[0044] See Figure 3 , which shows a schematic structural diagram of an electronic device involved in the embodiments of the present application. This electronic device can be used to implement Figure 1 the method in the illustrated embodiment. As Figure 3 shown, the electronic device 300 may include: at least one central processing unit 301, at least one network interface 304, a user interface 303, a memory 305, and at least one communication bus 302.
[0045] Among them, the communication bus 302 is used to implement connection communication between these components.
[0046] Among them, the user interface 303 may include a display screen (Display), a camera (Camera), and optionally the user interface 303 may further include a standard wired interface and a wireless interface.
[0047] Among them, the network interface 304 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface).
[0048] Among them, the central processing unit 301 may include one or more processing cores. The central processing unit 301 connects various parts within the entire electronic device 300 through various interfaces and lines. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 305, and by calling the data stored in the memory 305, it executes various functions of the terminal 300 and processes data. Optionally, the central processing unit 301 may be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), or programmable logic array (PLA). The central processing unit 301 may integrate a combination of one or several of a central processing unit (CPU), a graphics processing unit (GPU), and a modem, etc. Among them, the CPU mainly processes the operating system, user interface, application programs, etc.; the GPU is responsible for rendering and drawing the content to be displayed on the display screen; the modem is used to process wireless communications. It can be understood that the above-mentioned modem may not be integrated into the central processing unit 301 and may be implemented separately by a single chip.
[0049] Among them, the memory 305 may include random access memory (RAM) and may also include read-only memory. Optionally, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 305 may include a program storage area and a data storage area. Among them, the program storage area may store instructions for implementing the operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store the data involved in the above-mentioned various method embodiments. Optionally, the memory 305 may also be at least one storage device located far from the aforementioned central processing unit 301. As Figure 3 shown, the memory 305, as a computer storage medium, may include an operating system, a network communication module, a user interface module, and program instructions.
[0050] In Figure 3In the electronic device 300 shown, the user interface 303 is mainly used to provide an interface for the user to input and obtain the data input by the user; while the central processing unit 301 can be used to call the application programs stored in the memory 305 and specifically perform the following operations: S101. Obtain the flow data of the gas meter, compare the flow data with the set flow valid threshold. When the flow data is greater than the flow valid threshold, cache the flow data and execute S102; S102. Establish a mapping relationship between the set flow range and the set count value, calculate the cumulative count value based on the flow range where the flow data is located. When the cumulative count value is greater than the set count threshold, accumulate the cached flow data into the user data.
[0051] The present application also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the steps of the above method are implemented. Among them, the computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, and magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic or optical cards, nano-systems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.
[0052] It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present application is not limited by the described action sequence, because according to the present application, certain steps can be in other sequences or performed simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present application.
[0053] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0054] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some service interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical or other form.
[0055] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0056] In addition, each functional unit in various embodiments of the present application may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.
[0057] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned memory includes: USB flash drives, read-only memory (ROM), random access memory (RAM), mobile hard disks, magnetic disks or optical disks, etc., which can store program codes.
[0058] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program. This program can be stored in a computer-readable memory. The memory may include: flash drives, read-only memory (ROM), random access memory (RAM), magnetic disks or optical disks, etc.
[0059] The above are only exemplary embodiments of the present disclosure and should not be used to limit the scope of the present disclosure. That is, any equivalent changes and modifications made in accordance with the teachings of the present disclosure still fall within the scope covered by the present disclosure. Those skilled in the art will readily think of other embodiments of the present disclosure after considering the specification and practicing the disclosure herein. The present application aims to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not described in the present disclosure. The specification and embodiments are only regarded as exemplary, and the scope and spirit of the present disclosure are defined by the claims.
Claims
1. A metering method for anti-interference of a gas meter, characterized in that, The method includes: S101. Obtain the flow data of the gas meter, compare the flow data with a set flow valid threshold, and when the flow data is greater than the flow valid threshold, cache the flow data and execute S102; S102. Establish a mapping relationship between a set flow range and a set count value, calculate an accumulated count value based on the flow range where the flow data is located, and when the accumulated count value is greater than a set count threshold, accumulate the cached flow data into user data.
2. The metering method for anti-interference of a gas meter according to claim 1, characterized in that, The establishment of the mapping relationship between the set flow range and the set count value includes: the count value corresponding to the flow range close to the flow valid threshold is less than the count value corresponding to the flow range far from the flow valid threshold.
3. A metering method for anti-interference of a gas meter according to claim 2, characterized in that The method further includes: when the accumulated count value is less than or equal to the count threshold, if the flow data of the gas meter obtained is less than the flow valid threshold, discard the cached flow data.
4. A metering method for anti-interference of a gas meter according to claim 1, characterized in that The method further includes: obtain the flow data of the gas meter based on a set sampling frequency, and when the accumulated count value is greater than the set count threshold, accumulate the subsequently collected flow data into user data.
5. A metering method for anti-interference of a gas meter according to claim 1, characterized in that, The method further includes: cache the flow data based on the flow data of the gas meter and the communication state of the gas meter, and accumulate the cached flow data into user data or discard the cached flow data based on the gas consumption identification bit of the gas meter.
6. A gas meter anti-interference metering method according to claim 5, characterized in that, The method further includes: before the gas meter uploads data online, cache the flow generated during the upload process of the gas meter or discard the flow generated during the upload process of the gas meter based on the meter data of the gas meter and the flow valid threshold.
7. A metering method for anti-interference of a gas meter according to claim 2, characterized in that, Both the flow range and the count value are provided with three.
8. A metering device for anti-interference of a gas meter, characterized in that, The device includes: A primary filtering module for obtaining the flow data of the gas meter, comparing the flow data with a set flow valid threshold, and when the flow data is greater than the flow valid threshold, execute the secondary filtering module; A secondary filtering module for establishing a mapping relationship between a set flow range and a set count value, calculating an accumulated count value based on the flow range where the flow data is located, and when the accumulated count value is greater than a set count threshold, accumulate the flow data into user data.
9. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, and instructions are stored in the computer-readable storage medium. When the instructions run on a computer or a processor, the computer or the processor is caused to execute the steps of the method according to any one of claims 1-7.
Citation Information
Patent Citations
Flow filtering method for metering device and metering device
CN112747800A