An intelligent meter reading method and system based on NFC and image recognition

Abstract

The present invention discloses an intelligent meter reading method and system based on NFC and image recognition, comprising the steps of: fixing a first NFC tag on each meter respectively, the meters being arranged side by side, and the first NFC tag including a unique id; obtaining the ids of multiple meters through the NFC module of the mobile meter reading device, and obtaining an image through the photographing module, the image including the readings of multiple meters; identifying the readings of each meter and the positions of the readings in the image from the image; associating the readings with the corresponding ids according to the positions, and uploading them to the meter reading server. The present invention can greatly improve the meter reading efficiency and accuracy, and can reduce the cost investment of the meter reading scheme.

Description

Technical Field

[0001] The present application relates to the field of intelligent meter reading, and in particular to an intelligent meter reading method and system based on NFC and image recognition. Background Art

[0002] Water meters, electric meters, etc. are common measuring tools in life. Existing water meters are generally installed in residential buildings, and the water company arranges personnel to read the meters regularly and collect water fees. Water meters are divided into traditional mechanical water meters and smart water meters. Among them, traditional water meter reading requires personnel to be on-site to read and summarize the meters. The traditional meter reading method is easy to read the wrong residents, and it is inevitable that the meter reader is lazy and does not go to the site to take the estimated reading method. Smart water meters are equipped with meter reading mechanisms and data transmission modules, so remote automatic meter reading can be realized. Although smart water meters can save the work of meter readers and solve the problem of meter reading, smart water meters require power supply and networking, so not only the installation cost is high, but also the installation cycle is long, the software update cycle is long, and regular maintenance by professionals is required. Therefore, smart water meters require a lot of manpower and funds.

[0003] Therefore, how to improve the efficiency and accuracy of meter reading and reduce the cost of meter reading has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] In view of the above problems, the present application provides an intelligent meter reading method and system based on NFC and image recognition, which is used to solve the technical problem that the efficiency, accuracy and cost investment of the above-mentioned existing meter reading methods cannot be taken into account at the same time.

[0005] To achieve the above object, the inventor provides an intelligent meter reading method based on NFC and image recognition, wherein the intelligent meter reading is performed through a mobile meter reading device, wherein the mobile meter reading device includes an NFC module and a camera module, and the intelligent meter reading method based on NFC and image recognition includes the following steps:

[0006] A first NFC tag is fixed to each table, the tables are arranged side by side, and the first NFC tag includes a unique ID;

[0007] Acquire the IDs of multiple meters through the NFC module of the mobile meter reading device, and acquire an image through a camera module, wherein the image includes the readings of multiple meters;

[0008] identifying from said image a reading of each of said meters and a location of each of said readings in said image;

[0009] The reading is associated with the corresponding ID according to the location and uploaded to the meter reading server.

[0010] In some technical solutions, the steps are also included:

[0011] Manually establish a look-up table for the correspondence between the IDs and the positions in advance, and the readings at different positions in the image are respectively associated with the table at the corresponding positions;

[0012] Send the look-up table to each of the mobile meter reading devices.

[0013] In some technical solutions, it further includes the steps of:

[0014] Set a second NFC tag at the meter reading point in advance, and the number of the meters and the corresponding IDs within the meter reading point are stored in the second NFC tag;

[0015] And read the second NFC tag through the NFC module, verify whether the reading of each of the first NFC tags within the meter reading point is incorrect, and verify whether the association between the reading and the ID is incorrect.

[0016] In some technical solutions, it further includes the steps of:

[0017] Set a direction identifier at the meter reading point for indicating the meter reading photographing direction;

[0018] Before "identifying the readings of each of the meters and the positions of the readings in the image", it further includes the steps of:

[0019] Verify whether the photographing direction when the photographing module acquires the image is consistent with the direction identifier, if not, then prompt an error message and prompt to acquire the image again.

[0020] In some technical solutions, it further includes the steps of:

[0021] Judge whether the network connection between the mobile meter reading device and the meter reading server is smooth, if not, then postpone sending the reading and the corresponding ID.

[0022] In some technical solutions, it further includes the steps of:

[0023] Replace some of the first NFC tags of the meters, and correspondingly modify the look-up table.

[0024] In some technical solutions, the meters include any one or more of a water meter, an electric meter, and a gas meter.

[0025] In some technical solutions, the first NFC tag is fixed to the meter by a cable tie, and the cable tie is provided with an anti-tampering structure.

[0026] To solve the above technical problems, the present invention also provides another technical solution:

[0027] An intelligent meter reading system based on NFC and image recognition, comprising: a first NFC tag, a mobile meter reading device, and a meter reading server;

[0028] The first NFC tag is fixed on the meter, the meters are arranged side by side, and the first NFC tag includes a unique id;

[0029] The mobile meter reading device is network-connected to the meter reading server, and the mobile meter reading device includes an NFC module and a photographing module;

[0030] The NFC module is used to obtain the ids of multiple meters; the photographing module is used to obtain an image of the meters, and the image includes the readings of multiple meters;

[0031] The mobile meter reading device is further used to identify the readings of each meter and the positions of the readings in the image from the image; associate the readings with the corresponding ids according to the positions, and upload them to the meter reading server.

[0032] In some technical solutions, a second NFC tag is further included. The second NFC tag is arranged at the meter reading point, and the second NFC tag stores the number of meters in the meter reading point and the corresponding ids;

[0033] The NFC module is further used to read the second NFC tag; the mobile meter reading device is further used to verify whether the reading of each first NFC tag in the meter reading point is incorrect, and verify whether the association between the reading and the id is incorrect.

[0034] Different from the prior art, the above technical solution integrates an NFC module, a photographing module, and a data sending module in the mobile meter reading device; the first NFC tag information of each meter can be collected through the NFC module, and images of multiple meters can be collected simultaneously through the photographing module; the mobile meter reading device identifies the readings of each meter and the positions of the readings in the image from the image, and associates the readings with the corresponding ids according to the positions, so as to realize automatic reading and filling into the corresponding meter, and finally upload to the meter reading server. During the whole meter reading process, the meter reader only needs to hold the mobile meter reading device to scan the first NFC tag and take pictures of the meters according to the steps, and then the mobile handheld device automatically performs reading recognition and association with the corresponding meters. The reading and filling process does not require human intervention, thus greatly improving the efficiency and accuracy of meter reading. And the present invention can read all meters with the first NFC tag through a mobile meter reading device, without setting a meter reading mechanism and a transmission module for each meter, so the cost investment and later maintenance are greatly reduced, thus combining meter reading efficiency, accuracy, and low cost investment.

[0035] In some embodiments, a second NFC tag is also provided at each meter reading point. The number of meters and the corresponding IDs within the meter reading point are stored in the second NFC tag. By scanning the second NFC tag, the mobile meter reading device can know the number of meters within the meter reading point, thereby verifying whether the reading of each of the first NFC tags within the meter reading point is incorrect, and verifying whether the association between the reading and the ID is incorrect, so as to avoid missing or misreading meters and further improve the accuracy of meter reading.

[0036] In some embodiments, a direction identifier indicating the meter reading photographing direction is also provided at each meter reading point; the mobile meter reading device automatically determines whether the photographing direction when the photographing module acquires an image is consistent with the direction identifier. If not, it indicates that the meter reading staff's photographing direction is incorrect, and thus it is very likely that the correspondence between the position of the reading in the image and the meter is incorrect. In this embodiment, when it is detected whether the photographing direction when the photographing module acquires an image is consistent with the direction identifier, an error message is prompted and the device is prompted to re-acquire the image, so as to avoid the incorrect correspondence between the recognized reading in the image and the meter and further improve the accuracy of meter reading.

[0037] The above relevant descriptions of the invention content are only an overview of the technical solutions of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solutions of this application, and then to be implemented according to the content recorded in the description and the drawings, and in order to make the above objects, other objects, features and advantages of this application more easily understood, the following is described in conjunction with the specific embodiments and drawings of this application. Description of the Drawings

[0038] The drawings are only used to illustrate the principles, implementation methods, applications, features and effects of the specific embodiments of the present invention and other related contents, and should not be considered as a limitation to this application.

[0039] In the drawings of the specification:

[0040] Figure 1 It is a flowchart of the intelligent meter reading method based on NFC and image recognition described in the specific embodiment;

[0041] Figure 2 It is a schematic diagram of the mobile meter reading device for meter reading described in the specific embodiment;

[0042] Figure 3 It is a flowchart of establishing the comparison table described in the specific embodiment;

[0043] Figure 4 It is a flowchart of the meter reading verification described in the specific embodiment;

[0044] Figure 5 It is a flowchart of the image photographing verification described in the specific embodiment;

[0045] Figure 6 It is a schematic diagram of the comparison table described in the specific implementation manner;

[0046] Figure 7 It is a schematic diagram of the meter reading data described in the specific implementation manner;

[0047] Figure 8 It is a functional module block diagram of the mobile meter reading device described in the specific implementation manner;

[0048] The descriptions of the reference numerals involved in the above-mentioned respective drawings are as follows:

[0049] 10. Mobile meter reading device;

[0050] 20. Meter reading server;

[0051] 101. NFC module;

[0052] 102. Photographing module;

[0053] 103. Data sending module; Specific implementation manner

[0054] To describe in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects, etc. of the present application, the following will be described in detail in combination with the listed specific examples and with reference to the accompanying drawings. The examples described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore are only used as examples and cannot be used to limit the protection scope of the present application.

[0055] Referring to "embodiment" in this text means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it particularly limited to the independence or relevance with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form the corresponding implementable technical solution.

[0056] Unless otherwise defined, the meanings of the technical terms used in this text are the same as those generally understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms in this text is only for describing specific embodiments and is not intended to limit the present application.

[0057] In the description of the present application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, A and / or B, which means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects.

[0058] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary or sequential relationship between these entities or operations.

[0059] Without further limitation, in this application, the open-ended expressions such as "comprising", "including", "having" or other similar expressions used in a statement are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the recited elements, such that a process, method or product including a series of elements may include not only those recited elements, but also other elements not expressly listed, or elements inherent to such process, method or product.

[0060] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the recited number; expressions such as "above", "below", "within" are understood to include the recited number. In addition, in the description of the embodiments of this application, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "multiple" are understood in the same way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0061] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the drawings, and is only for the convenience of describing the specific embodiments of this application or facilitating the understanding of the reader, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and thus should not be construed as a limitation on the embodiments of this application.

[0062] Unless otherwise clearly specified or limited, in the description of the embodiments of this application, the terms such as "installed", "connected", "coupled", "fixed", "arranged" should be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium; it may be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art to which this application pertains, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0063] In the prior art, the traditional meter reading is inefficient and error-prone, while the existing intelligent meter reading has high costs, inconvenient maintenance, and problems such as data loss. Please refer to Figures 1 to 8 , in order to improve the meter reading efficiency, accuracy, reduce the meter reading cost and facilitate maintenance, this embodiment provides an intelligent meter reading method based on NFC and image recognition. This implementation does not require a meter reading mechanism and a data sending module to be set on each meter. This implementation has developed a dedicated mobile meter reading device 10. All meters can be read by one mobile meter reading device 10, thereby reducing equipment investment and meter reading costs. And the mobile meter reading device 10 includes an NFC module and a photographing module. By scanning the first NFC tag of the meter and photographing to intelligently identify the reading of the meter, and automatically corresponding the reading with the meter, full-automatic meter reading is realized. The meter reader only needs to carry the mobile meter reading device to the meter reading point for NFC scanning and reading photographing, thereby avoiding the technical problems of low efficiency and easy error in manual meter reading, and greatly improving the meter reading efficiency and accuracy. The intelligent meter reading method based on NFC and image recognition can be applied to application scenarios that require meter reading, such as water meters, electricity meters, gas meters, etc.

[0064] As Figure 1 shown, an intelligent meter reading method based on NFC and image recognition performs intelligent meter reading through the mobile meter reading device 10. As Figure 2 and Figure 8 shown, the mobile meter reading device 10 includes an NFC module 101 and a photographing module 102. The intelligent meter reading method based on NFC and image recognition includes the following steps:

[0065] S101. Fix the first NFC tag on each meter respectively. The meters are arranged side by side, and the first NFC tag includes a unique id;

[0066] S102. Obtain the ids of multiple meters through the NFC module of the mobile meter reading device, and obtain an image through the photographing module. The image includes the readings of multiple meters;

[0067] S103. Identify the readings of each meter and the positions of the readings in the image from the image;

[0068] S104. Associate the readings with the corresponding ids according to the positions and upload them to the meter reading server.

[0069] Each meter corresponds to a first NFC tag. As Figure 6As shown, it is a comparison table of water meters and NFC tags. The table includes any one or more of water meters, electricity meters, and gas meters. In some embodiments, to prevent the first NFC tag from being damaged or misappropriated, the first NFC tag is fixed to the table by a cable tie, and the cable tie is provided with an anti-tampering structure. The anti-tampering structure can be a one-way locking cable tie with barbs, or the anti-tampering structure can be an irreversible disposable structure such as a lead seal or a laser label provided on the cable tie.

[0070] As Figure 8 shown, the mobile meter reading device 10 is provided with a display screen, a built-in battery, a photographing module 102, a data sending module 103, and an NFC module 101. Among them, the built-in battery supplies power to the mobile meter reading device 10, and the display screen is used for human-computer interaction and can display the id of the meter, the image, and the recognized reading, etc. during meter reading. As Figure 2 shown, during meter reading, the meter reader carries the mobile meter reading device 10 to scan the first NFC tag on the meter and takes a photo of the reading of the meter through the photographing module. Since the meters at the same meter reading point are centrally arranged (for example, the water meters on the same floor are centrally arranged in a water meter box), the images taken include all the meters at this meter reading point. After the meter reader performs NFC scanning and takes a photo, the mobile meter reading device can automatically correspond the reading with the meter according to the position of the reading in the image, that is, automatically fill the reading into the corresponding meter, and then send it to the meter reading server 20. As Figure 7 shown, it is the meter reading data of the water meter generated in the meter reading server 20, which includes the water meter id, the water meter reading, and the meter reading time.

[0071] In the above technical solution, the mobile meter reading device 10 integrates the NFC module 101, the photographing module 102, and the data sending module 103; the first NFC tag information of each meter can be collected through the NFC module 101, and the images of multiple meters can be collected simultaneously through the photographing module 102; the mobile meter reading device 10 recognizes the readings of each meter and the positions of the readings in the image from the image, and associates the readings with the corresponding ids according to the positions, so as to realize automatic reading and filling into the corresponding meters, and finally upload them to the meter reading server 20. During the whole meter reading process, the meter reader only needs to hold the mobile meter reading device 10 to scan the first NFC tag and take a photo of the meter according to the steps, and then the mobile handheld device automatically performs reading recognition and association with the corresponding meter. The reading and filling process does not require human intervention, thus greatly improving the efficiency and accuracy of meter reading. And in the present invention, all meters with the first NFC tag can be read by one mobile meter reading device 10, and there is no need to set up a meter reading mechanism and a transmission module for each meter, so the cost investment and later maintenance are greatly reduced, thus combining meter reading efficiency, accuracy, and low cost investment.

[0072] In some embodiments, the intelligent meter reading method based on NFC and image recognition further includes the steps of:

[0073] Determine whether the network connection between the mobile meter reading device 10 and the meter reading server 20 is smooth. If not, the transmission of the reading and the corresponding ID will be postponed.

[0074] As Figure 3 shown, in some embodiments, the intelligent meter reading method based on NFC and image recognition further includes the steps of:

[0075] S301. Manually establish a look-up table of the ID and the location in advance, and associate the readings at different locations in the image with the table at the corresponding location;

[0076] S302. Send the to each mobile meter reading device.

[0077] In step S301, the readings at different locations in the image are respectively associated with the table at the corresponding location. For example, in the image, from top to bottom are water meter 1, water meter 2, and water meter 3. Then, associate the reading at the upper part of the image with the ID of water meter 1, the reading at the middle part of the image with the ID of water meter 2, and the reading at the lower part of the image with the ID of water meter 3. Therefore, in the subsequent meter reading step S104, only according to the look-up table, the readings at different locations identified can be automatically associated with the corresponding table.

[0078] In some embodiments, the intelligent meter reading method based on NFC and image recognition further includes the steps of:

[0079] Replace the first NFC tags of some of the tables, and modify the look-up table correspondingly.

[0080] As Figure 4 shown, in some embodiments, the intelligent meter reading method based on NFC and image recognition further includes the steps of:

[0081] S401. Set a second NFC tag at the meter reading point in advance, and store the number of tables and the corresponding IDs in the meter reading point in the second NFC tag;

[0082] S402. Read the second NFC tag through the NFC module, and verify whether the reading of each first NFC tag in the meter reading point is incorrect, and verify whether the association between the reading and the ID is incorrect.

[0083] During meter reading, the second NFC tag can be scanned first, then the first NFC tag, and it is determined whether the first NFC tag at this meter reading point is missed. Finally, all the meters at this meter reading point are photographed in the same image. In this embodiment, a second NFC tag is also set at each meter reading point, and the number of meters and the corresponding id in this meter reading point are stored in the second NFC tag. By scanning the second NFC tag, the mobile meter reading device 10 can know the number of meters in this meter reading point, so as to verify whether the reading of each first NFC tag in this meter reading point is incorrect, and verify whether the association between the reading and the id is incorrect, thus avoiding missed or incorrect meter reading and further improving the accuracy of meter reading.

[0084] As Figure 5 shown, in some embodiments, the intelligent meter reading method based on NFC and image recognition further includes the steps:

[0085] S501. Preset a direction identifier for indicating the meter reading photographing direction at the meter reading point;

[0086] Before the step of "identifying the readings of each meter and the positions of the readings in the image" from the image, the following steps are further included:

[0087] S502. Verify whether the photographing direction when the photographing module acquires the image is consistent with the direction identifier. If not, prompt an error message and prompt to re-acquire the image.

[0088] In this embodiment, a direction identifier for indicating the meter reading photographing direction is also set at each meter reading point; the mobile meter reading device 10 automatically determines whether the photographing direction when the photographing module 102 acquires the image is consistent with the direction identifier. If not, it means that the photographing direction of the meter reader is incorrect, so it is very likely that the correspondence between the position of the reading in the image and the meter is incorrect. In this embodiment, when it is detected whether the photographing direction when the photographing module 102 acquires the image is consistent with the direction identifier, an error message is prompted and it is prompted to re-acquire the image, so as to avoid the incorrect correspondence between the identified reading and the meter in the image and further improve the accuracy of meter reading.

[0089] To solve the above technical problems, the present invention also provides another embodiment: an intelligent meter reading system based on NFC and image recognition.

[0090] As Figure 8 shown, the intelligent meter reading system based on NFC and image recognition includes: a first NFC tag, a mobile meter reading device 10, and a meter reading server 20;

[0091] The first NFC tag is fixed on the meter, the meters are arranged side by side, and the first NFC tag includes a unique id;

[0092] The mobile meter reading device 10 is network - connected to the meter reading server 20. The mobile meter reading device 10 includes an NFC module 101 and a photographing module 102;

[0093] The NFC module 101 is used to obtain the id of multiple meters; the photographing module 102 is used to obtain an image of the meters, and the image includes the readings of multiple meters;

[0094] The mobile meter reading device 10 is further used to identify the readings of each meter and the positions of the readings in the image from the image; associate the readings with the corresponding id according to the positions, and upload them to the meter reading server 20.

[0095] In some embodiments, a second NFC tag is further included. The second NFC tag is set at the meter reading point, and the number of meters and the corresponding id in the meter reading point are stored in the second NFC tag;

[0096] The NFC module 101 is further used to read the second NFC tag; the mobile meter reading device 10 is further used to verify whether the reading of each first NFC tag in the meter reading point is incorrect, and verify whether the association between the reading and the id is incorrect.

[0097] In the above - mentioned embodiment, the mobile meter reading device 10 integrates an NFC module 101, a photographing module 102 and a data sending module 103; the first NFC tag information of each meter can be collected through the NFC module 101, and the images of multiple meters can be collected simultaneously through the photographing module 102; the mobile meter reading device 10 identifies the readings of each meter and the positions of the readings in the image from the image, and associates the readings with the corresponding id according to the positions, so as to realize automatic reading and filling into the corresponding table, and finally upload them to the meter reading server 20. During the whole meter reading process, the meter reader only needs to hold the mobile meter reading device 10 and scan the first NFC tag and take pictures of the meters step by step, and then the mobile handheld device automatically performs reading identification and association with the corresponding meters. The reading and filling process does not require human intervention, thus greatly improving the efficiency and accuracy of meter reading. And in the present invention, all meters with the first NFC tag can be read by one mobile meter reading device 10, without setting a meter reading mechanism and a transmission module for each meter, so the cost investment and later maintenance are greatly reduced, thus combining meter reading efficiency, accuracy and low - cost investment.

[0098] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions resulting from equivalent structure or equivalent process substitution or modification made based on the essential concept of this application, using the content recorded in the text and drawings of the specification of this application, as well as those directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included within the patent protection scope of this application.

Claims

1. An intelligent meter reading method based on NFC and image recognition, characterized in that, intelligent meter reading is performed through a mobile meter reading device, the mobile meter reading device includes an NFC module and a photographing module, and the intelligent meter reading method based on NFC and image recognition includes the following steps: Fix a first NFC tag on each meter respectively, the meters are arranged side by side, and the first NFC tag includes a unique id; Obtain the ids of multiple meters through the NFC module of the mobile meter reading device, and obtain an image through the photographing module, and the image includes the readings of multiple meters; Identify the readings of each meter and the positions of the readings in the image from the image; Associate the readings with the corresponding ids according to the positions and upload them to the meter reading server; It further includes the steps: Pre-set a second NFC tag at the meter reading point, and the second NFC tag stores the number of meters in the meter reading point and the corresponding ids; Read the second NFC tag through the NFC module, and verify whether the reading of each first NFC tag in the meter reading point is incorrect, and verify whether the association between the reading and the id is incorrect; It further includes the steps: Preset a direction identifier at the meter reading point for indicating the meter reading photographing direction; Before the step of "identifying the readings of each meter and the positions of the readings in the image from the image", it further includes the steps: Verify whether the photographing direction when the photographing module obtains the image is consistent with the direction identifier, if not, then prompt an error message and prompt to re-obtain the image.

2. The intelligent meter reading method based on NFC and image recognition according to claim 1, characterized in that, It further includes the steps: Manually establish a comparison table of the id and the position in advance, and the readings at different positions in the image are respectively associated with the meters at the corresponding positions; Send the comparison table to each mobile meter reading device.

3. The intelligent meter reading method based on NFC and image recognition according to claim 1, characterized in that, It further includes the steps: Judge whether the network connection between the mobile meter reading device and the meter reading server is smooth, if not, then postpone sending the reading and the corresponding id.

4. The intelligent meter reading method based on NFC and image recognition according to claim 2, characterized in that, It further includes the steps: Replace the first NFC tags of some of the meters, and modify the comparison table correspondingly.

5. The intelligent meter reading method based on NFC and image recognition according to claim 1, characterized in that, The meters include any one or more of water meters, electricity meters, and gas meters.

6. The intelligent meter reading method based on NFC and image recognition according to claim 1, characterized in that, The first NFC tag is fixed on the meter through a cable tie, and the cable tie is provided with an anti-disassembly structure.

7. An intelligent meter reading system based on NFC and image recognition, characterized in that, including: A first NFC tag, a mobile meter reading device and a meter reading server; The first NFC tag is fixed on the meter, the meters are arranged side by side, and the first NFC tag includes a unique id; The mobile meter reading device is network-connected to the meter reading server. The mobile meter reading device includes an NFC module and a photographing module; The NFC module is used to obtain the id of multiple meters; the photographing module is used to obtain an image of the meters, and the image includes the readings of multiple meters; The mobile meter reading device is further used to identify the readings of each meter and the positions of the readings in the image from the image; associate the readings with the corresponding id according to the positions, and upload them to the meter reading server; It further includes a second NFC tag. The second NFC tag is set at the meter reading point, and the number of meters in the meter reading point and the corresponding id are stored in the second NFC tag; The NFC module is further used to read the second NFC tag; the mobile meter reading device is further used to verify whether the reading of each first NFC tag in the meter reading point is incorrect, and verify whether the association between the reading and the id is incorrect; A direction identifier for indicating the meter reading photographing direction is preset at the meter reading point; Before "identifying the readings of each meter and the positions of the readings in the image from the image", the following steps are further included: Verify whether the photographing direction when the photographing module obtains the image is consistent with the direction identifier. If not, prompt an error message and prompt to obtain the image again.

Images