Ultrasonic water meter batch consistency control system

Abstract

The invention relates to the technical field of water meter batch control, in particular to an ultrasonic water meter batch consistency control system. A mean value filtering algorithm is adopted to remove noise, data after acquisition is completed are subjected to filtering, denoising, abnormal value elimination and normalization processing, and due to the fact that in practical application, the water supply temperature can be greatly changed due to seasonal changes, hot water system fluctuation or pipe network transmission conditions, a traditional constant value sound velocity method is difficult to adapt to the operation environment with the large temperature difference, and the problem is solved. Through real-time temperature collection and feedback adjustment, the system is suitable for cold water, hot water and variable temperature scenes and keeps consistent measurement performance, data calculated in the data processing and calculating module is compared with a preset threshold value, automatic judgment of batch water meter flow measurement consistency is achieved, and an error index is compared with the preset threshold value.

Description

Technical Field

[0001] The present invention relates to the technical field of water meter batch control, and in particular to an ultrasonic water meter batch consistency control system. Background Art

[0002] With the development of the Internet of Things and smart metering technology, ultrasonic water meters are gradually replacing traditional mechanical water meters due to their high precision, low power consumption, and lack of mechanical wear, and are widely used in urban water supply systems. However, during the large-scale production of ultrasonic water meters, differences in components, assembly errors, and software algorithms can lead to slight variations in measurement accuracy between batches of water meters, affecting the overall consistency of factory quality.

[0003] At present, the common batch ultrasonic water meter detection usually adopts the random inspection method, which has the disadvantages of insufficient detection coverage and easily causes damage to individual ultrasonic water meters. This makes it impossible to maintain and replace them in time, affecting the effectiveness of ultrasonic water meters in monitoring water flow. To solve the above problems, we propose an ultrasonic water meter batch consistency control system. Summary of the Invention

[0004] Technical problem to be solved: Common batch ultrasonic water meter detection usually adopts the random inspection method, which has the problem of insufficient detection coverage, easily causing damage to individual ultrasonic water meters, and unable to be maintained and replaced in time, affecting the effectiveness of ultrasonic water meters in monitoring water flow.

[0005] In view of the deficiencies in the prior art, the present invention provides an ultrasonic water meter batch consistency control system, thereby solving the technical problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] Includes the following: Includes the following:

[0008] Data acquisition and control module, this module uses various sensors to perform flow tests on batches of ultrasonic water meters under multiple working conditions, and simultaneously collects the instantaneous flow, cumulative flow, and related temperature and pressure data of each water meter at the preset flow point;

[0009] The data processing and calculation module is used to remove noise from the collected raw data, filter, denoise, remove outliers and normalize the data after data collection, and calculate the complex coupling relationship between flow rate data, pressure data, temperature data and actual flow rate;

[0010] The consistency judgment module is used to compare and analyze the flow characteristics of each water meter based on the preset consistency judgment index and output the consistency judgment results of each water meter;

[0011] The control terminal module is used to unify the scheduling of test processes, display real-time test status, issue alarm reminders, store test data, and generate batch test reports;

[0012] The optimization module is used to back up and store the calculated data and regularly optimize the stored information.

[0013] In one possible implementation, the data acquisition and control module installs standard flow generators and temperature constant devices in multiple ultrasonic water meters to ensure that all tested water meters operate under the same temperature conditions, eliminate measurement errors caused by temperature fluctuations, monitor water temperature in real time, and assist in temperature compensation of flow rate calculation results. At the same time, the pressure in the test water channel is controlled within a set range to prevent water pressure fluctuations, dynamically adjust the valve opening, and accurately adjust the water flow through the ultrasonic water meter. By connecting with the standard flow generator in the flow acquisition and control, the output target flow is controlled.

[0014] In one possible implementation, the data processing and calculation module uses edge computing equipment to perform preliminary processing on the original data at the data acquisition end, adopts a mean filtering algorithm to remove noise, and performs filtering, denoising, outlier elimination and normalization on the data after data collection. By using a neural network model to model and calculate the preliminary processed data, it can deeply explore the complex coupling relationship between the input flow rate data, pressure data, temperature data and the actual flow.

[0015] In one possible implementation, the consistency judgment module automatically judges the consistency of flow measurement of batch water meters by comparing the data processed by the data processing and analysis module with a preset threshold, and compares the error index with the preset threshold to determine whether the water meter is "qualified", "accepted", "needs re-inspection", or classifies it according to the error classification A / B / C, and automatically identifies and eliminates water meters with errors exceeding the preset range from batch water meters, so that the ultrasonic water meter can be repaired in time after an abnormal situation occurs.

[0016] In one possible implementation, the control terminal module uses a touch screen to provide graphical buttons and menu operation interfaces, allowing the operator to manually start, pause, retest or terminate the test process, control batch number entry, mode switching, and display the current water meter test data, instantaneous flow, cumulative amount, fitting curve, error index in real time. According to the threshold set for the ultrasonic water meter flow, when the consistency judgment module determines that the flow of individual water meters among multiple water meters exceeds or does not reach the set threshold, the sound and light alarm device is activated. The sound and light alarm device uses high-brightness flashing lights and high-decibel alarm sounds, which can quickly attract the attention of staff in a noisy environment.

[0017] In one possible implementation, the optimization module backs up important data and effectively reduces the risk of data loss through efficient backup strategies and recovery mechanisms. At the same time, data is encrypted during transmission and the stored information is optimized regularly.

[0018] Beneficial effects compared with existing technologies:

[0019] 1. In this solution, temperature sensors are installed in multiple ultrasonic water meters to monitor water temperature in real time, assist in temperature compensation of flow rate calculation results, improve measurement accuracy, and avoid the influence of temperature on the propagation speed of ultrasonic water meters. In actual applications, the water supply temperature can vary greatly due to seasonal changes, fluctuations in the hot water system, or pipe network transmission conditions. The traditional constant sound velocity method is difficult to adapt to the operating environment with large temperature differences. Through real-time temperature collection and feedback adjustment, it is suitable for cold water, hot water and variable temperature scenarios, maintaining consistent measurement performance. By comparing the data calculated in the data processing and calculation module with the preset threshold, the consistency of batch water meter flow measurement is automatically judged, and the error index is compared with the preset threshold.

[0020] 2. In this solution, the data calculated in the data processing and calculation module is compared with the preset threshold value to realize the automatic judgment of the consistency of the flow measurement of batch water meters, and the error index is compared with the preset threshold value. By using the touch screen to provide a graphical button and menu operation interface, the operator can manually start, pause, retest or terminate the test process, control the batch number entry and mode switching, and display the current water meter test data, instantaneous flow, cumulative amount, fitting curve, and error index in real time, which is convenient for manual monitoring of the operating status of each water meter. The water meter flow characteristic fitting curve and the original measurement point comparison chart are displayed to intuitively present the error distribution and consistency quality, which is convenient for on-site judgment.

[0021] 3. In this solution, by using edge computing devices, the raw data is preliminarily processed at the data acquisition end, and the mean filter algorithm is used to remove noise. After the data collection is completed, the data is filtered, denoised, outliers are eliminated and normalized. By using a neural network model to model and calculate the data preliminarily processed in data processing, it can deeply explore the complex coupling relationship between the input flow rate data, pressure data, temperature data and the actual flow. Compared with traditional linear or polynomial fitting methods, it has higher fitting accuracy when dealing with non-uniform flow rate, instantaneous fluctuations or turbulent areas, and simultaneously receives multi-dimensional input features of temperature, pressure, and power status. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the module structure of the present invention. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial" and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" explicitly or implicitly includes one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to the specific circumstances.

[0027] In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature means that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described are combined in an appropriate manner in any one or more schemes or examples;

[0028] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below with reference to the accompanying drawings:

[0029] Example 1

[0030] Please refer to Figure 1 As shown, this embodiment introduces an ultrasonic water meter batch consistency control system, including the following contents:

[0031] Data acquisition and control module

[0032] This module uses various sensors to perform flow tests on batches of ultrasonic water meters under multiple working conditions, and simultaneously collects the instantaneous flow, cumulative flow, and related temperature and pressure data of each water meter at the preset flow point;

[0033] Implementation steps of data acquisition and control module

[0034] For flow and temperature collection, standard flow generators are installed in multiple ultrasonic water meters. These generators can accurately output the target flow within the set range to ensure stable and reliable flow and comparable data from each water meter. Different flow levels are set according to test requirements, allowing the water meters to be tested under a variety of typical working conditions to fully reflect their metering characteristics.

[0035] Temperature sensors are installed in multiple ultrasonic water meters to monitor water temperature in real time. This helps compensate for the temperature of the flow rate calculation, improves measurement accuracy, and prevents the ultrasonic water meter's propagation velocity from being affected by temperature. In practice, water supply temperature can vary significantly due to seasonal changes, fluctuations in the hot water system, or pipe network transmission conditions. Traditional fixed-value sound velocity methods are difficult to adapt to operating environments with large temperature differences. Real-time temperature acquisition and feedback adjustment are applicable to cold water, hot water, and variable temperature scenarios, maintaining consistent measurement performance.

[0036] Valve control: Electronic valve control units are installed in multiple ultrasonic water meters. These units dynamically adjust valve openings based on system instructions, precisely regulating the water flow through the ultrasonic water meters. By connecting to a standard flow generator used in flow acquisition and control, they control the output target flow rate, ensuring flow control accuracy during the test. In multi-condition testing, such as minimum flow, common flow, and maximum flow tests, the electronic valve control units can quickly respond to system instructions and seamlessly switch between different flow points, greatly improving test efficiency and avoiding errors caused by manual adjustments.

[0037] Pressure control: Installing pressure stabilizing devices in multiple ultrasonic water meters prevents water pressure fluctuations by controlling the pressure in the test water circuit within a set range, ensuring that each ultrasonic water meter is tested under consistent pressure conditions. This avoids flow rate fluctuations and bubble generation caused by unstable water supply pressure during ultrasonic water meter measurement, thereby improving the propagation characteristics of the ultrasonic signal. At the same time, the pressure stabilizing device can effectively reduce the test errors caused by such fluctuations and improve the stability and repeatability of the test data. During the test, if abnormally high pressure occurs, it is easy to damage the internal sensor of the water meter or the test system pipeline. The pressure stabilizing device will buffer or release the pressure in time to ensure the safe operation of the system and equipment.

[0038] Data processing and computing module

[0039] This module is connected to the data acquisition and control module, and is used to remove noise from the collected raw data, filter, denoise, remove outliers and normalize the data after data acquisition is completed, and calculate the complex coupling relationship between flow rate data, pressure data, temperature data and actual flow rate on the processed data;

[0040] Implementation steps of data processing and calculation module

[0041] Data processing, through the use of edge computing equipment, the original data is preliminarily processed at the data collection end, and the mean filter algorithm is used to remove noise. After the data collection is completed, the data is filtered, denoised, outliers are eliminated and normalized.

[0042] Because edge computing devices have data caching and preliminary aggregation functions, they can temporarily store data when network transmission is interrupted or congested. After the network returns to normal, the cached data is aggregated according to certain rules and then transmitted to the back-end data analysis platform, effectively reducing data transmission volume and transmission delay, and improving the system's real-time response capability;

[0043] Data calculation, by using a neural network model to model and calculate the data initially processed in data processing, can deeply explore the complex coupling relationship between input flow rate data, pressure data, temperature data and actual flow. Compared with traditional linear or polynomial fitting methods, it has higher fitting accuracy when dealing with non-uniform flow rate, instantaneous fluctuations or turbulent areas. At the same time, it receives multi-dimensional input features such as temperature, pressure, and power status, and completes feature extraction and fusion analysis under a unified model framework, avoiding the complex process of manually setting weights or selecting features in traditional algorithms, thereby improving the overall intelligence level and processing efficiency of the system;

[0044] Since neural networks automatically learn complex mapping relationships between data through training, there is no need to manually construct formulas or preset functions, which significantly reduces the modeling workload. They can also quickly adapt to the measurement characteristics of different types of water meters and different installation environments. Through continuous training and online learning, model parameters are continuously optimized through subsequent data to achieve dynamic adaptation to actual working conditions. This is especially suitable for application scenarios in towns and parks with complex traffic usage patterns and large on-site interference.

[0045] Consistency judgment module

[0046] This module is connected to the data processing module and is used to compare and analyze the flow characteristics of each water meter based on the preset consistency judgment index, and output the consistency judgment results of each water meter;

[0047] Implementation steps of the consistency judgment module

[0048] Threshold judgment: By comparing the data calculated in the data processing and calculation module with the preset threshold, the consistency of the flow measurement of batch water meters can be automatically judged, and the error index can be compared with the preset threshold;

[0049] Data classification: the error index is compared with the preset threshold to determine whether the water meter is "qualified", "accepted", or "needs re-inspection", or classified according to the error classification A / B / C. By automatically identifying and removing water meters with errors exceeding the preset range from the batch water meters, abnormal conditions of ultrasonic water meters can be repaired in a timely manner.

[0050] Control terminal module

[0051] This module communicates with the above modules and is used to unify the scheduling of test processes, display real-time test status, issue alarm reminders, store test data, and generate batch test reports;

[0052] Implementation steps of the control terminal module

[0053] The data display uses a touch screen to provide a graphical button and menu operation interface, allowing operators to manually start, pause, retest or terminate the test process, control batch number entry, mode switching, and display the current water meter test data, instantaneous flow, cumulative flow, fitting curve, and error index in real time, facilitating manual monitoring of the operating status of each water meter. A comparison chart of the water meter flow characteristic fitting curve and the original measurement point is displayed, intuitively presenting the error distribution and consistency quality, facilitating on-site judgment;

[0054] Alarm reminder: According to the threshold set by the ultrasonic water meter flow rate, when the consistency judgment module determines that the flow rate of one of the multiple water meters exceeds or does not reach the set threshold, the sound and light alarm device is activated. The sound and light alarm device uses high-brightness flashing lights and high-decibel alarm sounds to quickly attract the attention of staff in noisy environments, ensuring that staff can quickly identify water meter problems and take effective countermeasures;

[0055] Optimization module, which backs up and stores the calculated data and regularly optimizes the stored information;

[0056] Implementation steps of the optimization module

[0057] Data optimization, backing up important data, effectively reducing the risk of data loss through efficient backup strategies and recovery mechanisms. At the same time, data is encrypted during transmission to ensure the confidentiality, integrity and usability of information during data transmission and storage, and the stored information is optimized regularly.

[0058] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An ultrasonic water meter batch consistency control system, characterized in that: Includes the following: Data acquisition and control module, this module uses various sensors to perform flow tests on batches of ultrasonic water meters under multiple working conditions, and simultaneously collects the instantaneous flow, cumulative flow, and related temperature and pressure data of each water meter at the preset flow point; The data processing and calculation module is used to remove noise from the collected raw data, filter, denoise, remove outliers and normalize the data after data collection, and calculate the complex coupling relationship between flow rate data, pressure data, temperature data and actual flow rate; The consistency judgment module is used to compare and analyze the flow characteristics of each water meter based on the preset consistency judgment index and output the consistency judgment results of each water meter; The control terminal module is used to unify the scheduling of test processes, display real-time test status, issue alarm reminders, store test data, and generate batch test reports; The optimization module is used to back up and store the calculated data and regularly optimize the stored information.

2. The ultrasonic water meter batch consistency control system according to claim 1, characterized in that: The data acquisition and control module is equipped with standard flow generators and temperature constant devices in multiple ultrasonic water meters to ensure that all tested water meters operate under the same temperature conditions, eliminate measurement errors caused by temperature fluctuations, monitor water temperature in real time, and assist in temperature compensation of flow rate calculation results. At the same time, the pressure in the test water channel is controlled within a set range to prevent water pressure fluctuations, dynamically adjust the valve opening, and accurately regulate the water flow through the ultrasonic water meter. By connecting with the standard flow generator in the flow acquisition and control, the output target flow is controlled.

3. The ultrasonic water meter batch consistency control system according to claim 1, characterized in that: The data processing and calculation module uses edge computing equipment to perform preliminary processing on the original data at the data acquisition end, adopts a mean filtering algorithm to remove noise, and performs filtering, denoising, outlier elimination and normalization on the data after data collection. By using a neural network model to model and calculate the preliminary processed data, it can deeply explore the complex coupling relationship between the input flow rate data, pressure data, temperature data and the actual flow.

4. The ultrasonic water meter batch consistency control system according to claim 1, characterized in that: The consistency judgment module automatically judges the consistency of flow measurement of batch water meters by comparing the data processed by the data processing and analysis module with the preset threshold value, and compares the error index with the preset threshold value to determine whether the water meter is "qualified", "accepted" or "needs re-inspection", or classifies it according to the error grades A / B / C. It also automatically identifies and eliminates water meters with errors exceeding the preset range from the batch water meters, and promptly repairs the ultrasonic water meters when abnormal conditions occur.

5. The ultrasonic water meter batch consistency control system according to claim 1, characterized in that: The control terminal module uses a touch screen to provide graphical buttons and menu operation interfaces, allowing operators to manually start, pause, retest or terminate the test process, control batch number entry, mode switching, and display the current water meter test data, instantaneous flow, cumulative amount, fitting curve, and error index in real time. According to the threshold set for the ultrasonic water meter flow, when the consistency judgment module determines that the flow of individual water meters among multiple water meters exceeds or does not reach the set threshold, the sound and light alarm device is activated. The sound and light alarm device uses high-brightness flashing lights and high-decibel alarm sounds, which can quickly attract the attention of staff in noisy environments.

6. The ultrasonic water meter batch consistency control system according to claim 1, characterized in that: The optimization module backs up important data and effectively reduces the risk of data loss through efficient backup strategies and recovery mechanisms. At the same time, data is encrypted during transmission and the stored information is optimized regularly.

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