Table change identification system and method

Abstract

The present application discloses a meter replacement recognition system and method, the system includes an image acquisition module, an image recognition module, a character recognition module, an information processing module and an information prompt module, the image acquisition module obtains the image of the water meter after the meter replacement; the image recognition module recognizes the image of the water meter after the meter replacement and obtains the image feature information of the water meter; the character recognition module recognizes the image of the water meter after the meter replacement and obtains the character feature information of the water meter; the information processing module obtains the preset meter replacement information, the preset meter replacement information includes the information that the water meter after the meter replacement needs to meet; the information processing module matches the preset meter replacement information according to the image feature information and the character feature information respectively; the information prompt module responds to the image feature information and the character feature information matching the preset meter replacement information, and issues a prompt message that the water meter has been correctly replaced. The meter replacement recognition system of the present application avoids the problems of time-consuming, labor-intensive and low accuracy in meter replacement recognition, and improves the accuracy and efficiency of meter replacement recognition.

Description

Technical Field

[0001] The present application relates to the technical field of water meter intelligent monitoring, and in particular to a meter replacement identification system and method. Background Art

[0002] In the daily use of water meters, in order to ensure the accuracy of water meter measurement, water meters will be worn out after a certain number of years of use. It is common for the meter to run without water or to run too fast, which affects the accuracy of the water meter. Moreover, the case of a general mechanical water meter is made of iron. If the water meter is used for a long time, rusty water will appear. The longer the time, the more serious the problem of rusty water will be, causing harm to the human body. At the same time, rust will appear in the water meter that has been used for a long time. If there are multiple places in the home using water at the same time, the water flow will drop significantly, and the water pressure will also drop sharply, causing great inconvenience to residents. Therefore, it is very necessary to replace the water meter regularly.

[0003] At present, the meter replacement work mainly relies on manual operation. The staff needs to manually record the model, caliber, meter parameters and meter base number of the old and new meters. This method is not only time-consuming and labor-intensive, but also prone to human errors. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide a table replacement identification system and method, which can avoid the time-consuming and labor-intensive problems and low accuracy in table replacement identification, and improve the accuracy and efficiency of table replacement identification.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a meter replacement identification system, which is used to identify whether a water meter has been correctly replaced, and the system includes: an image acquisition module, which is used to obtain an image of the water meter after the meter is replaced; an image recognition module, which is used to identify the image of the water meter after the meter is replaced, and obtain image feature information of the water meter; a character recognition module, which is used to identify the image of the water meter after the meter is replaced, and obtain character feature information of the water meter; an information processing module, which is used to obtain preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter is replaced needs to meet; the information processing module is also used to match the image feature information and the character feature information with the preset meter replacement information respectively; an information prompt module, which is used to receive the matching result of the information processing module, and in response to the image feature information and the character feature information both matching the preset meter replacement information, issue a prompt message that the water meter has been correctly replaced.

[0007] The meter replacement recognition system collects the image of the replaced water meter through the image acquisition module, accurately obtains the image feature information of the water meter using the image recognition module, and accurately recognizes the character feature information using the character recognition module, thereby solving the time-consuming, labor-intensive and low-accuracy problems caused by the need for manual recognition and manual recording of water meter information in related technologies; then, the preset meter replacement information is obtained through the information processing module, and the image feature information and character feature information after the meter replacement are matched with the preset meter replacement information to determine whether the water meter has been correctly replaced, thereby reducing the audit of later data information and improving the accuracy and efficiency of meter replacement recognition.

[0008] In one embodiment, the image feature information includes at least the model and caliber of the water meter, and the character feature information includes at least the parameters and meter base number of the water meter.

[0009] In one embodiment, the image recognition module is also used to identify the image of the water meter before the meter is replaced, and obtain the model and caliber of the water meter before the meter is replaced; the character recognition module is also used to identify the image of the water meter before the meter is replaced, and obtain the parameters and meter base number before the meter is replaced; the information processing module is also used to construct a replaceable water meter information library, and the replaceable water meter information library includes the correspondence between water meters of different models and different calibers. The information processing module is also used to determine the replaceable water meter model and caliber from the replaceable water meter information library according to the water meter model and caliber before the meter is replaced; the information processing module also summarizes the replaceable water meter model, caliber and the parameters and meter base number of the water meter before the meter is replaced to determine the preset meter replacement information.

[0010] In one embodiment, the image acquisition module is also used to obtain a new water meter image after the water meter valve is opened after the meter is replaced and after a preset time interval; the image recognition module and / or the character recognition module is also used to determine the first meter base number of the water meter according to the new water meter image, and determine the second meter base number of the water meter according to the water meter image after the meter is replaced; the information processing module is used to calculate the difference between the first meter base number and the second meter base number, and determine whether the difference is within a preset difference range; the information prompt module also issues a prompt message based on the judgment result of the information processing module.

[0011] In one embodiment, the character feature information also includes the model and caliber of the water meter. The information processing module also generates a first model and a first caliber of the water meter based on the image feature information after the meter is replaced; the information processing module also generates a second model and a second caliber of the water meter based on the character feature information after the meter is replaced; the information processing module is also used to match the first model with the second model, and the first caliber with the second caliber respectively; the information prompt module also issues a prompt message to reacquire the water meter image in response to the mismatch between the first model and the second model, and / or the mismatch between the first caliber and the second caliber.

[0012] In one embodiment, the information processing module obtains the replaceable correspondence in the replaceable water meter information library in response to the first model matching the second model and the first caliber matching the second caliber; the information processing module is also used to match the correspondence between the first model and the first caliber, and the correspondence between the second model and the second caliber with the replaceable water meter information library respectively, and the information prompt module also issues a prompt message to re-acquire the water meter image in response to the correspondence between the first model and the first caliber not matching the replaceable correspondence, and / or the correspondence between the second model and the second caliber not matching the replaceable correspondence.

[0013] In one embodiment, the image recognition module determines the recognition frame of the image feature information in response to the prompt information for reacquiring the water meter image; the character recognition module determines the recognition frame of the character feature information in response to the prompt information for reacquiring the water meter image; and the image acquisition module is also used to reacquire the water meter image according to each recognition frame.

[0014] In one embodiment, the system also includes an information storage module and an abnormality recognition module. The information storage module is used to store historical meter replacement work orders, and the historical meter replacement work orders include image feature information and character feature information records of each correct meter replacement in history; the information processing module is used to generate confidence scores for current image feature information and current character feature information based on historical meter replacement work orders; the abnormality recognition module re-identifies the image feature information and character feature information of the current water meter image in response to the confidence score being lower than a preset score threshold, and determines the cause of the abnormality.

[0015] In one embodiment, the information processing module is further used to generate the table replacement work order based on the image feature information and the character feature information.

[0016] In the second aspect, the present application provides a meter replacement identification method, which is used to identify whether a water meter has been correctly replaced, and the method includes: obtaining an image of the water meter after the meter is replaced; identifying the image of the water meter after the meter is replaced, and obtaining image feature information of the water meter; identifying the image of the water meter after the meter is replaced, and obtaining character feature information of the water meter; obtaining preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter is replaced must meet; matching the preset meter replacement information according to the image feature information and the character feature information; in response to both the image feature information and the character feature information matching the preset meter replacement information, issuing a prompt message that the water meter has been correctly replaced.

[0017] The meter replacement recognition method obtains the image of the replaced water meter and recognizes the water meter image to obtain the image feature information and character feature information of the water meter, thereby solving the problem of time-consuming, labor-intensive and low-accuracy caused by manual recognition and manual recording of water meter information in related technologies. Then, preset meter replacement information that the replaced water meter must meet is obtained, and the image feature information and character feature information after the meter replacement are matched with the preset meter replacement information to determine whether the water meter has been correctly replaced, thereby reducing the audit of later data information and improving the accuracy and efficiency of meter replacement recognition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a system block diagram of a table replacement identification system provided in an embodiment of the present application;

[0019] Figure 2 is a water meter image provided by an embodiment of the present application;

[0020] Figure 3 It is a display interface of a watch change identification system provided in an embodiment of the present application;

[0021] Figure 4 is a system block diagram of another table change identification system provided in an embodiment of the present application;

[0022] Figure 5 is another water meter image provided in an embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of the workflow of a table replacement identification system provided in an embodiment of the present application;

[0024] Figure 7 It is a flowchart of a table replacement identification method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The present application will be described in detail below in conjunction with the specific implementation modes shown in the accompanying drawings, but these implementation modes do not limit the present application. Structural, methodological, or functional changes made by ordinary technicians in the field based on these implementation modes are included in the protection scope of the present application.

[0026] In the daily use of water meters, in order to ensure the accuracy of water meter measurement, the water meter will be worn out after a certain number of years of use, which will affect the accuracy of the water meter. Therefore, it is very necessary to replace the water meter regularly.

[0027] At present, the confirmation before and after the replacement of water meters mainly relies on manual identification. One way is to manually record the model, caliber, parameters and meter base of the water meter. This method is not only time-consuming and labor-intensive, but also prone to human errors, resulting in low data accuracy, affecting subsequent billing and management work. Another way is to use a system with intelligent solutions. Although it improves efficiency, it lacks an effective anomaly detection mechanism and cannot detect and handle data anomalies in a timely manner, increasing the workload of subsequent data verification.

[0028] Based on this, an embodiment of the present application provides a meter replacement identification system, which is used to identify whether the water meter has been correctly replaced. The replacement identification system includes: an image acquisition module, which is used to obtain the image of the water meter after the meter is replaced; an image recognition module, which is used to identify the image of the water meter after the meter is replaced, and obtain the image feature information of the water meter; a character recognition module, which is used to identify the image of the water meter after the meter is replaced, and obtain the character feature information of the water meter; an information processing module, which is used to generate preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter is replaced needs to meet; the information processing module is also used to match the image feature information and the character feature information with the preset meter replacement information respectively; an information prompt module, which is used to receive the matching result of the information processing module, and in response to the image feature information and the character feature information both matching the preset meter replacement information, issue a prompt information that the water meter has been correctly replaced.

[0029] According to the above description, the replacement identification system provided in the embodiment of the present application collects the image of the replaced water meter through the image acquisition module, uses the image recognition module to accurately obtain the image feature information of the water meter, and uses the character recognition module to accurately identify the character feature information. Then, the preset meter replacement information is matched by the image feature information and the character feature information after the meter replacement to determine whether the water meter has been correctly replaced, thereby improving the accuracy and efficiency of meter replacement identification.

[0030] The table replacement identification system of the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is a system block diagram of a meter replacement identification system provided in one embodiment of the present application. The meter replacement identification system is used to identify whether a water meter has been correctly replaced. The meter replacement identification system includes an image acquisition module 11, an image recognition module 12, a character recognition module 13, an information processing module 14 and an information prompt module 15.

[0032] It should be noted that the connection relationship and sequence shown in the figure are for convenience of explanation only. The connection sequence of each module should be determined by its function and internal logic, and does not constitute any limitation on the implementation process of the embodiment of the present application.

[0033] Specifically, the image acquisition module 11 is used to obtain the image of the water meter after the meter is replaced. The image acquisition module 11 is set at the front end of the system to facilitate users to collect and view water meter images. The image acquisition module 11 can use a camera with high resolution to obtain clear water meter images. The image recognition module 12 is used to identify the image of the water meter after the meter is replaced, and obtain the image feature information of the water meter. The image feature information may include image information on the water meter. The image recognition module 12 can use TensorFlow Lite to deploy a pre-trained convolutional neural network model to enhance the accuracy of image recognition. The character recognition module 13 is used to identify the image of the water meter after the meter is replaced, and obtain the character feature information of the water meter. The character feature information includes digital or text information on the water meter. The character recognition module 13 can use an optical character recognition (OCR) model, and the character recognition module 13 can also have a built-in multilingual recognition engine to recognize multiple language systems and enhance the flexibility and accuracy of character recognition.

[0034] It should be noted that the water meter image collected by the image acquisition module 11 is not only the dial image, but an image representing the water meter as a whole. The water meter image includes the pipe connected to the water meter and the water meter body. Based on this water meter image, the subsequent image recognition module 12 can extract the pipe diameter characteristics of the pipe connected to the water meter and the information contained on the water meter dial itself. The image recognition module 12 recognizes the water meter image after the meter is replaced to obtain the water meter image features, and the character recognition module 13 recognizes the water meter image features to obtain the character feature information of the water meter. Exemplarily, first, the image recognition module 12 pre-processes the water meter image to obtain the water meter image features, for example, using adaptive histogram equalization to enhance the contrast of the water meter image to highlight the character area, using Gaussian filtering to remove the water meter image noise, and using edge enhancement to highlight the character outline in the water meter image. Then, the water meter image features are transmitted to the character recognition module 13 for character recognition to obtain more accurate character feature information.

[0035] The information processing module 14 is used to generate preset meter replacement information. The preset meter replacement information includes information that the water meter after the meter replacement needs to meet, for example, the preset meter replacement information includes information that the image feature information and character feature information of the water meter after the meter replacement need to meet, such as water meter information such as the model, caliber, parameters, and meter base number of the water meter. The information processing module 14 generates the preset meter replacement information for each replaced water meter, so as to prepare for the subsequent automatic verification of whether the water meter after the meter replacement is correct.

[0036] The meter replacement recognition system provided in the present application can integrate image feature information and character feature information to obtain water meter information. It should be noted that the processing of integrating image feature information and character feature information can be performed in the information processing module 14, or another processing module can be additionally set up for processing. Exemplarily, in the embodiment of the present application, taking a pointer-type water meter as an example, for the water meter image of a pointer-type water meter, the image recognition module 12 recognizes the pointer image, and the character recognition module 13 recognizes the digital characters corresponding to the pointer, and then the information processing module 14 integrates the pointer image and the digital characters corresponding to the pointer to generate accurate reading information.

[0037] The information processing module 14 matches the preset meter replacement information according to the image feature information and the character feature information respectively, and the information prompt module 15 receives the matching result of the information processing module 14. If both the image feature information and the character feature information match the preset meter replacement information, it means that the water meter after the meter replacement is correctly replaced, and the information prompt module 15 sends a prompt message that the water meter is correctly replaced to remind the meter replacement personnel that the replacement is completed; if one of the image feature information and the character feature information does not match the preset meter replacement information, it means that there is a problem with the water meter after the meter replacement, and the information prompt module 15 sends a prompt message that the water meter is not correctly replaced to remind the meter replacement personnel that there is a problem with the water meter after the meter replacement, so as to timely check and maintain it.

[0038] According to the above description, the meter replacement recognition system of this embodiment acquires the image of the replaced water meter through the image acquisition module 11, accurately obtains the image feature information of the water meter using the image recognition module 12, and accurately recognizes the character feature information using the character recognition module 13, thereby solving the problems of time-consuming, labor-intensive and low accuracy caused by the need for manual recognition and manual recording of water meter information in related technologies; and then matches the image feature information and character feature information after the meter replacement with the preset meter replacement information to determine whether the water meter has been correctly replaced, thereby reducing the audit of subsequent data information and improving the accuracy and efficiency of meter replacement recognition.

[0039] In one embodiment, the image feature information includes at least the model and caliber of the water meter, and the character feature information includes at least the parameters and meter base number of the water meter.

[0040] Among them, the image recognition module 12 determines the model of the water meter according to the appearance of the water meter and the dial image. The caliber of the water meter refers to the size of the pipe connected to the water meter. The caliber of the water meter can be determined according to the pipe connected to the water meter and the size. Therefore, the image including the pipe connected to the water meter and the water meter dial is used as the water meter image, and the model and caliber of the water meter are obtained by the image recognition module 12. The image recognition module 12 can recognize at least ten water meter models, for example, water meters with models of LXS-15K2, LXS-15K, LXS-15K3, LXSG-15E2, etc. The image recognition module 12 can recognize at least three water meter calibers, for example, water meters with calibers of 15mm, 20mm or 25mm, etc. The water meter parameters include at least the flow range, maximum flow, maximum working pressure and working temperature of the water meter, and the bottom number of the water meter indicates the first meter reading number or the last meter reading number after the water meter is installed. The water meter parameters and the base number of the water meter are usually directly displayed on the water meter dial in the form of characters. Therefore, the water meter dial image is collected as the water meter image, and the water meter parameters and the base number of the water meter can be obtained through the character recognition module 13.

[0041] like Figure 2 As shown in FIG. 1 , an exemplary water meter image is shown. It can be seen that a portion of the water meter pipe is included behind the dial. The image recognition module 12 recognizes the portion of the pipe and the water meter dial to determine the model and caliber of the water meter. The character "10 bar" in the figure represents the maximum working pressure that the water meter can withstand, which is also a water meter parameter. "00067139" represents the meter base number. The character recognition module 13 recognizes these characters in the dial to obtain the water meter parameters and the meter base number.

[0042] The accuracy and efficiency of meter replacement identification can be further improved by using key information of the water meter, such as the model, diameter, parameters, and meter base number.

[0043] In one embodiment, the watch change identification system further includes a display interface, such as Figure 3 As shown, a display interface of a meter replacement identification system includes image feature information and character feature information such as the model, caliber, parameters, meter base number, etc. of the water meter to facilitate users to perform secondary verification and confirmation.

[0044] In one embodiment, the image acquisition module 11 is also used to obtain the image of the water meter before the meter is replaced, and the information processing module 14 is also used to generate preset meter replacement information based on the water meter image before the meter is replaced, wherein the preset meter replacement information at least includes the replaceable water meter model and caliber, and the parameters and meter base number before the meter replacement, so as to ensure that the user can only replace the water meter that meets the requirements; the information processing module 14 is also used to match the image feature information after the meter is replaced with the replaceable model and caliber, and the information processing module 14 is also used to match the character feature information after the meter is replaced with the parameters and meter base number of the water meter in the preset meter replacement information, confirming that the replaced water meter meets the preset model and caliber requirements, and that the parameters of the replaced water meter are correctly set, and that the replaced meter base number can be correctly connected, thereby avoiding errors that may be caused by manual identification, thereby improving the correctness of meter replacement and the accuracy of data, and reducing operating costs, providing an efficient and intelligent way for meter replacement identification.

[0045] In one embodiment, the image recognition module 12 is also used to recognize the image of the water meter before the meter is replaced, and obtain the model and caliber of the water meter before the meter is replaced, so as to improve the accuracy of the model and caliber of the water meter before the meter is replaced. The character recognition module 13 is also used to recognize the image of the water meter before the meter is replaced, and obtain the parameters and table base before the meter is replaced, so as to improve the accuracy of the parameters and table base before the meter is replaced. The information processing module 14 is also used to build a replaceable water meter information library, which includes the correspondence between water meters of different models and different calibers. The information processing module 14 is also used to determine the replaceable water meter model and caliber from the replaceable water meter information library according to the water meter model and caliber before the meter is replaced, and summarize the replaceable water meter model, caliber and the parameters and table base of the water meter before the meter is replaced to generate preset meter replacement information. Through the coordinated work of the image recognition module 12, the character recognition module 13, and the information processing module 14, the system can ensure that when replacing the water meter, the selection and installation of the new water meter meet the technical requirements, while ensuring the consistency and accuracy of the data. Therefore, the system of this embodiment not only improves the automation level of the meter replacement operation, but also reduces human errors and improves the meter replacement efficiency.

[0046] In one embodiment, the image acquisition module 11 is also used to obtain a new water meter image after the water meter valve is opened after the meter is replaced and after a preset time interval. The image recognition module 12 and / or the character recognition module 13 determine the first meter base number of the water meter based on the new water meter image. The image recognition module 12 and / or the character recognition module 13 are also used to determine the second meter base number of the water meter based on the water meter image after the meter is replaced. Specifically, when the meter base number of the water meter is in image format, the meter base number of the water meter is determined by the image recognition module 12; when the meter base number of the water meter is in character format, the meter base number of the water meter is determined by the character recognition module 13; when the meter base number of the water meter is in both image and character format, the meter base number of the water meter is determined by combining the image recognition module 12 and the character recognition module 13.

[0047] The information processing module 14 is also used to calculate the difference between the first meter base number and the second meter base number, and determine whether the difference is within a preset difference range. The preset difference range is set based on the normal water consumption of the water meter after the water meter valve is opened and the preset time interval after the meter is replaced.

[0048] The information prompt module 15 also issues a prompt message based on the judgment result of the information processing module 14. If the difference is within the preset difference range, the information prompt module 15 will issue a prompt message, indicating that the water meter has been correctly replaced. If the difference exceeds the preset range, the information prompt module 15 will issue a warning, indicating that there may be a problem and further inspection of the replaced water meter is required.

[0049] Through the coordinated work of the image acquisition module 11, the image recognition module 12, the character recognition module 13, the information processing module 14 and the information prompt module 15, the system of this embodiment can not only ensure the correct replacement of the water meter, but also promptly discover and solve problems that may arise during the replacement process, thereby ensuring the accuracy and reliability of the water meter replacement process.

[0050] In one embodiment, the character feature information also includes the model and caliber of the water meter. Figure 5 As shown, it is an exemplary image of a water meter. It can be seen that the characters "LXS-15K" represent the water meter model, and the characters "DN20" represent that the diameter of the water meter is 20 mm.

[0051] The information processing module 14 is used to generate the first model and the first caliber of the water meter according to the image feature information after the meter is replaced; the information processing module 14 is used to generate the second model and the second caliber of the water meter according to the character feature information after the meter is replaced; the information processing module 14 is also used to match the first model with the second model, the first caliber with the second caliber respectively; the information prompt module 15 also responds to the mismatch between the first model and the second model, and / or the mismatch between the first caliber and the second caliber, and issues a prompt message for reacquiring the water meter image. The prompt message will instruct the operator to reacquire the water meter image in order to re-identify and match the model and caliber. It should be noted that the information mismatch may be due to inaccurate or unclear acquisition of the water meter image, or it may be due to an error in replacing the water meter. Therefore, reacquiring the water meter image may also mean that the water meter needs to be replaced again to avoid the problem of incorrect water meter replacement.

[0052] Through the cooperation of the information processing module 14, the information processing module 14 and the information prompt module 15, the system can ensure that the information during the water meter replacement process is accurate, and promptly discover and correct potential errors, thereby improving the accuracy and efficiency of the water meter replacement.

[0053] Further, the information prompt module 15 obtains a replaceable correspondence in response to the first model matching the second model, and the first caliber matching the second caliber, wherein the replaceable correspondence is a correspondence between replaceable water meter models and calibers determined based on the water meter before replacement; the information processing module 14 is also used to match the correspondence between the first model and the first caliber, and the correspondence between the second model and the second caliber with replaceable correspondences, respectively; the information prompt module 15 also issues a prompt message for reacquiring the water meter image in response to the correspondence between the first model and the first caliber not matching the replaceable correspondence, and / or the correspondence between the second model and the second caliber not matching the replaceable correspondence.

[0054] Through the above process, the system first confirms whether the model and caliber of the water meter after the meter replacement match each other. If they match, the system further matches and verifies them with the replaceable correspondence, so that the water meter replacement operation not only conforms to the identification result after the meter replacement, but also conforms to the regulations and standards before the meter replacement, which helps to prevent water meter replacement errors caused by model or caliber mismatch, thereby improving the accuracy and reliability of meter replacement.

[0055] In one embodiment, the image recognition module 12 determines the recognition frame of the image feature information in response to the prompt information of reacquiring the water meter image; the character recognition module 13 determines the recognition frame of the character feature information in response to the prompt information of reacquiring the water meter image; the image acquisition module 11 is also used to reacquire the water meter image according to each recognition frame. Through this process, the system can more accurately identify and verify the model and caliber of the water meter, thereby ensuring the accuracy and efficiency of the water meter replacement process. This method allows the system to adjust and correct when encountering problems through a feedback loop mechanism, and ultimately achieve the expected operating results.

[0056] In one embodiment, the table replacement identification system further includes an information storage module 16 and an abnormality identification module 17. The information storage module 16 is used to store historical table replacement work orders, which include image feature information and character feature information records of each correct table replacement in history.

[0057] The information processing module 14 also generates a confidence score for the current image feature information and the current character feature information based on the historical meter replacement work order. The confidence score is a quantitative assessment of the reliability of the current recognition result, and the confidence score can be obtained by the similarity or consistency between the current recognition result and the historical data. In response to the confidence score being lower than the preset score threshold, the abnormal SHIB module re-identifies the image feature information and character feature information of the current water meter image. The preset score threshold is a score standard set according to historical data or experience, and a score lower than this standard indicates that there may be problems with the recognition result.

[0058] In this way, the system of this embodiment can not only store and use historical data to improve the accuracy of recognition, but also promptly discover and correct potential recognition errors, thereby ensuring the continuity and accuracy of the entire water meter replacement process. This mechanism enhances the robustness of the system, enabling it to self-adjust in the face of different situations and maintain efficient and reliable operation.

[0059] In one embodiment, the meter replacement identification system also includes an offline module, which is used to monitor in real time whether the network connection of the system is normal; if the network connection is abnormal, the offline module stores the meter replacement work order offline to prevent data information loss; if the network connection is restored to normal, the offline module synchronizes the meter replacement work order to the server to ensure data integrity and consistency. Through the offline module, the system can ensure data security and operation continuity even when the network is unstable or disconnected. At the same time, the system can promptly detect and report abnormal conditions in the operation, thereby improving the reliability of the water meter replacement process and the adaptability of the system.

[0060] For example, Figure 6 FIG. 1 is a schematic diagram of a work flow of a table replacement identification system, which specifically includes the following steps:

[0061] Step S601: the image acquisition module 11 acquires the water meter image before the meter is replaced, and the image processing module determines the preset meter replacement information based on the water meter image before the meter is replaced.

[0062] Step S602: the image acquisition module 11 acquires the image of the water meter after the meter is replaced, and the image recognition module 12 and the character recognition module 13 acquire the image feature information and the character feature information of the water meter after the meter is replaced based on the water meter after the meter is replaced.

[0063] Step S603: the information processing module 14 matches the image feature information and character feature information after the table switching with the preset table switching information respectively.

[0064] Step S604, determine whether the image feature information and character feature information of the water meter after the meter is replaced match the preset meter replacement information; if the judgment result is yes, execute step S606, if the judgment result is no, execute step S605.

[0065] Step S605: reacquire the water meter image.

[0066] Step S606: The information prompt module 15 sends a message indicating that the water meter has been correctly replaced.

[0067] Step S607: the information storage module 16 stores the table replacement work order, where the table replacement work order includes correct table replacement image feature information and character feature information.

[0068] Step S608, the offline module determines whether the network connection is normal; if the judgment result is yes, execute step S610, if the judgment result is no, execute step S609.

[0069] Step S609: synchronize to the server.

[0070] Step S610: The offline module stores the meter replacement work order offline.

[0071] Based on the same inventive concept, the embodiment of the present application also provides a meter replacement identification method, which is used to identify whether the water meter is correctly replaced, such as Figure 7 As shown, the method comprises the following steps:

[0072] Step S701, obtaining an image of the water meter after the meter is replaced.

[0073] Step S702, identifying the image of the water meter after the meter is replaced, and obtaining the image feature information of the water meter; identifying the image of the water meter after the meter is replaced, and obtaining the character feature information of the water meter.

[0074] Step S703, obtaining preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter replacement needs to meet; matching the preset meter replacement information according to the image feature information and the character feature information respectively.

[0075] Step S704: In response to the image feature information and the character feature information both matching the preset meter replacement information, a prompt message is issued indicating that the water meter has been correctly replaced.

[0076] According to the above description, the meter replacement identification method of this embodiment obtains the image of the replaced water meter, and identifies the water meter image to accurately obtain the image feature information and character feature information of the water meter, thereby solving the problem of time-consuming, labor-intensive and low accuracy caused by manual identification and manual recording of water meter information in the related technology; and then obtains the preset meter replacement information that the water meter after the meter replacement needs to meet, and matches the image feature information and character feature information after the meter replacement with the preset meter replacement information to determine whether the water meter has been correctly replaced, thereby reducing the audit of subsequent data information and improving the accuracy and efficiency of meter replacement identification.

[0077] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of this application can be achieved, and this document does not limit this.

[0078] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0079] The above disclosure is only the preferred embodiment of the present application, but it is not intended to limit the scope of rights of the present application. A person of ordinary skill in the art can understand that without departing from the spirit and scope of the present application and the appended claims, changes, modifications, substitutions, combinations, and simplifications should all be equivalent replacement methods and still fall within the scope of the invention.

[0080] Although the preferred embodiments of the present application have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the application as disclosed in the accompanying claims.

Claims

1. A table change identification system, characterized in that: The meter replacement identification system is used to identify whether the water meter is correctly replaced, and the system includes: An image acquisition module, wherein the image acquisition module is used to acquire an image of the water meter after the meter is replaced; An image recognition module, the image recognition module is used to recognize the image of the water meter after the meter is replaced and obtain image feature information of the water meter; A character recognition module, the character recognition module is used to recognize the water meter image after the meter is replaced and obtain character feature information of the water meter; An information processing module, the information processing module is used to obtain preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter replacement needs to meet; the information processing module is also used to match the image feature information and the character feature information with the preset meter replacement information respectively; An information prompt module, the information prompt module is used to receive the matching result of the information processing module, and in response to the image feature information and the character feature information both matching the preset meter replacement information, issue a prompt message that the water meter is correctly replaced; The image feature information at least includes the model and caliber of the water meter, and the character feature information at least includes the parameters and meter base number of the water meter; The image recognition module is also used to recognize the image of the water meter before the meter is replaced, and obtain the model and caliber of the water meter before the meter is replaced; the character recognition module is also used to recognize the image of the water meter before the meter is replaced, and obtain the parameters and meter base number before the meter is replaced; The information processing module is also used to construct a replaceable water meter information database, which includes the correspondence between water meters of different models and different calibers. The information processing module is also used to determine the replaceable water meter model and caliber from the replaceable water meter information database based on the water meter model and caliber before the meter is replaced; the information processing module also summarizes the replaceable water meter model, caliber and the parameters and meter base number of the water meter before the meter is replaced to determine the preset meter replacement information.

2. The table change identification system according to claim 1, characterized in that: The character feature information also includes the model and caliber of the water meter. The information processing module further generates a first model and a first caliber of the water meter based on the image feature information after the meter is replaced; the information processing module further generates a second model and a second caliber of the water meter based on the character feature information after the meter is replaced; The information processing module is also used to match the first model with the second model, and the first caliber with the second caliber respectively; The information prompt module also issues a prompt message for reacquiring the water meter image in response to the first model not matching the second model and / or the first caliber not matching the second caliber.

3. The table change identification system according to claim 2, characterized in that: The information processing module obtains a replaceable corresponding relationship in the replaceable water meter information database in response to the first model matching the second model and the first caliber matching the second caliber; The information processing module is also used to match the correspondence between the first model and the first caliber, and the correspondence between the second model and the second caliber with the replaceable water meter information database respectively. The information prompt module also issues a prompt message for reacquiring the water meter image in response to the correspondence between the first model and the first caliber not matching the replaceable correspondence, and / or the correspondence between the second model and the second caliber not matching the replaceable correspondence.

4. The table change identification system according to any one of claims 2 to 3, characterized in that: The image recognition module determines a recognition frame of the image feature information in response to the prompt information for reacquiring the water meter image; The character recognition module determines a recognition frame of the character feature information in response to prompt information for reacquiring the water meter image; The image acquisition module is also used to reacquire the water meter image according to each of the identification frames.

5. The table change identification system according to claim 1, characterized in that: The image acquisition module is also used to obtain a new water meter image after the water meter valve is opened after the meter is replaced and after a preset time interval; The image recognition module and / or character recognition module is further used to determine the first meter base number of the water meter according to the new water meter image, and determine the second meter base number of the water meter according to the water meter image after the meter replacement; The information processing module is used to calculate the difference between the first table base and the second table base, and determine whether the difference is within a preset difference range; The information prompt module also issues a prompt message based on the judgment result of the information processing module.

6. The table change identification system according to claim 1, characterized in that: The system further comprises an information storage module and an abnormality identification module, wherein the information storage module is used to store historical table replacement work orders, wherein the historical table replacement work orders include the image feature information and the character feature information records of each correct table replacement in history; The abnormality recognition module is used to generate a confidence score of the current image feature information and the current character feature information based on the historical table replacement work order; In response to the confidence score being lower than a preset score threshold, the abnormality recognition module re-recognizes the image feature information and character feature information of the current water meter image to determine the cause of the abnormality.

7. The table change identification system according to claim 6, characterized in that: The information processing module is further used to generate the table replacement work order based on the image feature information and the character feature information.

8. A table change identification method, characterized in that: The method is applied to identify whether a water meter is correctly replaced, and the method comprises: Get the water meter image after the meter is replaced; Recognize the water meter image after the meter is replaced, and obtain the image feature information of the water meter; recognize the water meter image after the meter is replaced, and obtain the character feature information of the water meter; Acquire preset meter replacement information, wherein the preset meter replacement information includes information that the water meter after the meter replacement needs to meet; match the preset meter replacement information respectively according to the image feature information and the character feature information; In response to the image feature information and the character feature information both matching the preset meter replacement information, issuing a prompt message indicating that the water meter is correctly replaced; The image feature information at least includes the model and caliber of the water meter, and the character feature information at least includes the parameters and meter base number of the water meter; The method further includes: identifying the water meter image before the meter is replaced, and obtaining the model and caliber of the water meter before the meter is replaced; identifying the water meter image before the meter is replaced, and obtaining the parameters and meter base number before the meter is replaced; Construct a replaceable water meter information database, wherein the replaceable water meter information database includes the correspondence between different models of water meters and different calibers; determine the replaceable water meter model and caliber from the replaceable water meter information database according to the water meter model and caliber before the meter is replaced; summarize the replaceable water meter model, caliber and the parameters and meter base number of the water meter before the meter is replaced to determine the preset meter replacement information.

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