Calibration device for intelligent water meter
By using a verification device for water supply pipelines, image acquisition modules, and controllers, the problem of inconsistency between electronic and mechanical readings of smart water meters has been solved, enabling consistency verification and correction of readings and improving the scientific nature and accuracy of water management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI INSPECTION TESTING & CERTIFICATION INST
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
The electronic and mechanical readings of smart water meters often do not match, leading to confusion in water consumption statistics and water bill calculations, which is detrimental to the metering and management of water utilities.
A calibration device is provided, including a water supply pipeline, an image acquisition module, and a controller. It acquires mechanical readings by obtaining images of the smart water meter's dial and compares them with electronic readings. A reverse-write module is used to modify the electronic readings to ensure consistency.
It enables accurate judgment and correction of the electronic readings of smart water meters, ensuring the consistency of readings and providing a scientific basis for water departments to measure and manage.
Smart Images
Figure CN224175932U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment technology, and more specifically to a calibration device for smart water meters. Background Technology
[0002] Smart water meters, relying on accurate sensing and signal processing units (such as turbine flow sensors), built-in embedded computer systems and algorithms, various input / output interfaces, and electronic actuators, can monitor water meter data in real time, such as water consumption and usage duration. They provide convenience for water utilities' water supply management, avoiding the inconvenience of manual meter readings, and become an important channel for water departments and users to establish information-based services.
[0003] Besides traditional mechanical dials, smart water meters can conveniently obtain electronic readings of water consumption through built-in flow sensors. However, in practical applications, the electronic readings of smart water meters often differ from the mechanical readings displayed on the dial. This is because flow sensors primarily rely on electronic components (such as Hall effect, piezoelectric effect, and thermistors) to convert physical quantities (e.g., water consumption) into electrical signals, which are then processed by algorithms to output the results. However, electronic components are susceptible to environmental interference (e.g., electromagnetic fields, temperature fluctuations), and quantization errors may be introduced during signal processing. This inconsistency not only causes confusion for users in water consumption statistics and water bill calculations but also hinders metering and management by water utilities.
[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content
[0005] To address or improve, to some extent, the technical problem of inconsistencies between electronic and mechanical readings in existing smart water meters, this invention provides a verification device for smart water meters. The verification device includes: a water supply pipeline adapted to connect to the smart water meter to allow water flow through it; an image acquisition module adapted to acquire an image of the smart water meter's dial; and a controller connected to the image acquisition module to acquire the mechanical reading of the smart water meter based on the dial image. The controller is configured to establish a communication connection with the smart water meter to acquire its electronic reading and, based on the mechanical reading, determine whether the electronic reading is accurate.
[0006] Those skilled in the art will understand that the present invention's calibration device for smart water meters includes a water supply pipeline, an image acquisition module, and a controller. The water supply pipeline is connected to the smart water meter to be calibrated, allowing water to flow through it, thereby simulating the actual working state of the smart water meter. The image acquisition module acquires an image of the smart water meter's dial, providing image information for obtaining the mechanical reading. The controller is not only connected to the image acquisition module to obtain the smart water meter's mechanical reading based on the dial information, but also establishes a communication connection with the smart water meter to obtain its electronic reading, using the mechanical reading as a benchmark to determine the accuracy of the electronic reading. Therefore, the calibration device of this invention can conveniently and accurately determine whether there is an inconsistency between the electronic and mechanical readings of the smart water meter, thus providing a scientific basis for water utilities' metering and management.
[0007] In the preferred embodiment of the above-mentioned verification device for smart water meters, the verification device further includes a reverse-write module, which is built into the controller. This reverse-write module allows the electronic reading to be modified when the electronic reading differs from the mechanical reading, ensuring that the modified electronic reading matches the mechanical reading. The reverse-write module enables convenient and reliable modification of the electronic reading, achieving data reverse writing and ensuring the accuracy of the smart water meter's electronic readings.
[0008] In the preferred embodiment of the above-described verification device for smart water meters, multiple water supply pipelines are arranged in parallel, and each water supply pipeline is adapted to be connected to a corresponding smart water meter. The multiple parallel water supply pipelines can simultaneously verify multiple smart water meters, improving verification efficiency.
[0009] In the preferred embodiment of the above-mentioned calibration device for smart water meters, each water supply pipeline is equipped with an on / off valve, and each on / off valve is communicatively connected to the controller. The on / off valves allow for precise control of the opening and closing and flow rate of each water supply pipeline to meet the actual needs of different calibration processes.
[0010] In the preferred embodiment of the above-described verification device for smart water meters, the image acquisition module includes a high-speed camera, and each high-speed camera is adapted to be paired with a corresponding smart water meter. The high-speed camera is capable of capturing images at a frame rate far exceeding that of ordinary cameras (typically exceeding 1000 frames per second, and even reaching millions of frames per second) to clearly obtain images of the rapidly rotating pointers on the mechanical dial.
[0011] In the preferred embodiment of the above-described verification device for smart water meters, the verification device further includes a meter clamping mechanism, which comprises a driving component and a clamp connected to the driving component. The driving component is communicatively connected to the controller to control the clamp to hold the smart water meter. The meter clamping mechanism facilitates the clamping and fixing of the smart water meter, improving the efficiency and stability of the verification process.
[0012] In the preferred embodiment of the above-described verification device for smart water meters, the driving components include a first driving component and a second driving component that are opposite to each other. The clamps include a first clamp connected to the first driving component and a second clamp connected to the second driving component, wherein the first clamp and the second clamp are configured to be positioned on both sides of the smart water meter. The arrangement of the first driving component and the second driving component allows for convenient and flexible adjustment of the displacement of the first clamp and the second clamp, thereby improving the ease of clamping the smart water meter. Accordingly, the first clamp and the second clamp located on both sides of the smart water meter can conveniently and securely clamp the smart water meter.
[0013] In the preferred embodiment of the above-described calibration device for smart water meters, each of the first clamp and the second clamp is provided with a clearance hole allowing the water supply pipeline to pass through; and / or each of the first clamp and the second clamp is provided with a micro switch for detecting whether the smart water meter is properly clamped. The clearance hole optimizes the arrangement of the components of the calibration device. The micro switch accurately determines whether the smart water meter is properly clamped.
[0014] In the preferred embodiment of the above-described calibration device for smart water meters, the clamping mechanism further includes a connecting pipe connected to the clamp, wherein the connecting pipe is connected to the water supply pipeline, and the connecting pipe is adapted to be sleeved on at least one of the inlet and outlet pipes of the smart water meter. Through the above arrangement, the smart water meter can be stably and firmly clamped under the control of the driving component, and the connecting pipe can conveniently connect the water supply pipeline to the smart water meter.
[0015] In the preferred embodiment of the above-mentioned calibration device for smart water meters, the image acquisition module and the controller are connected via a USB interface to ensure efficient transmission of image information.
[0016] In the preferred embodiment of the above-mentioned calibration device for smart water meters, the controller is adapted to establish a communication connection with the smart water meter via an RS-485 interface or wireless Bluetooth to ensure a convenient and reliable communication connection between the controller and the smart water meter. Attached Figure Description
[0017] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:
[0018] Figure 1 This is a schematic diagram of an embodiment of the calibration device for smart water meters according to this utility model;
[0019] Figure 2 This is a schematic diagram of an embodiment of the image acquisition module and the meter clamping mechanism in the calibration device for smart water meters of this utility model;
[0020] Figure 3 This is a schematic diagram of the system structure of an embodiment of the calibration device for smart water meters according to this utility model.
[0021] List of reference numerals in the attached diagram:
[0022] 100. Calibration device; 110. Work box; 111. Operating table; 112. Casters; 113. Mounting bracket; 114. Handrail; 120. Water supply pipe; 121. Inlet pipe; 122. Outlet pipe; 123. On / off valve; 130. Image acquisition module; 131. Mounting base; 132. High-speed camera; 140. Control system; 141. Monitor; 142. Keyboard; 143. Mouse; 144. Control... Device; 150, Meter clamping mechanism; 151, Drive component; 1511, First drive component; 1512, Second drive component; 152, Clamp; 1521, First clamp; 1522, Second clamp; 153, Connecting pipe; 1531, First connecting pipe; 1532, Second connecting pipe; 160, Reverse writing module; 200, Smart water meter; 210, Inlet pipe; 220, Outlet pipe; 230, Dial; 240, Flip cover. Detailed Implementation
[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0024] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] To address or improve to some extent the technical problem of inconsistencies between electronic and mechanical readings in existing smart water meters, this invention provides a calibration device 100 for a smart water meter 200. The calibration device 100 includes: a water supply pipe 120 adapted to be connected to the smart water meter 200 to allow water flow through it; an image acquisition module 130 adapted to acquire an image of the smart water meter 200's dial; and a controller 144 connected to the image acquisition module 130 to acquire the mechanical reading of the smart water meter 200 based on the dial image. The controller 144 is also configured to establish a communication connection with the smart water meter 200 to acquire its electronic reading and determine the accuracy of the electronic reading based on the mechanical reading.
[0027] Figure 1 This is a schematic diagram of an embodiment of the calibration device for smart water meters according to this utility model. Figure 1 As shown, in one or more embodiments, the calibration device 100 for a smart water meter 200 of this invention includes components such as a work box 110, a water supply pipeline 120, an image acquisition module 130, and a control system 140. The work box 110 provides suitable installation space for functional components such as the water supply pipeline 120, the image acquisition module 130, the control system 140, and the meter clamping mechanism 150. Alternatively, the calibration device 100 may not include the work box 110, or other suitable components may be used to install the various functional components, such as a work cabinet or a workbench.
[0028] like Figure 1As shown, in one or more embodiments, the work box 110 has a generally rectangular box body. An operating platform 111 for placing the smart water meter 200 to be calibrated is provided on the top of the work box 110. The box body has a suitable height so that the user can easily assemble or disassemble the smart water meter 200 on the operating platform 111. In one or more embodiments, four casters 112 spaced apart from each other are provided at the bottom of the work box 110 to facilitate moving the position of the work box 110. Alternatively, the casters 112 may be provided in other suitable numbers, such as three, five, etc. In one or more embodiments, a mounting bracket 113 is provided on the upper part of the work box 110 to fix the image acquisition module 130. The fixing method between the mounting bracket 113 and the work box 110 includes, but is not limited to, screwing, welding, snap-fitting, etc. In one or more embodiments, a generally U-shaped handrail 114 is provided on the front side (the side closer to the user) of the work box 110 for the user to grip. It should be noted that the shape and arrangement of the handrail 114 can also be adjusted according to actual needs.
[0029] See also Figure 1 In one or more embodiments, four operating stations (not shown in the figure) spaced apart from each other in the left-right direction are provided on the operating console 111. Each operating station can be equipped with a corresponding smart water meter 200. Alternatively, the number of operating stations can be set to other suitable numbers, such as three or five. The setting of multiple operating stations allows multiple smart water meters 200 to be calibrated simultaneously, improving testing efficiency.
[0030] Figure 2 This is a schematic diagram of an embodiment of the image acquisition module 130 and the meter clamping mechanism 150 in the calibration device for smart water meters of this utility model. Figure 1 and Figure 2 As shown, in one or more embodiments, four sets of water supply pipelines 120 are arranged in parallel, and each set of water supply pipelines 120 is connected to a corresponding smart water meter 200 so as to independently control the water flow through any one or more smart water meters 200.
[0031] It should be noted that the specific structure and type of the smart water meter 200 are not limited. In one or more embodiments, the smart water meter 200 includes a water meter body, an inlet pipe 210 and an outlet pipe 220 located on both sides of the water meter body, a dial 230 located above the water meter body, and a flip cover 240 rotatably fixed to the dial 230, etc.
[0032] like Figure 2As shown, in one or more embodiments, each group of water supply pipelines 120 includes an inlet pipeline 121 and an outlet pipeline 122 spaced apart from each other. One end of the inlet pipeline 121 is connected to a water source (e.g., a tap water pipe, a water storage tank, etc.), and the other end is connected to the inlet pipe 210 of the corresponding smart water meter 200. One end of the outlet pipeline 122 is connected to the outlet pipe 220 of the corresponding smart water meter 200, and the other end is connected to a water storage tank, a drain pipe, or a suitable component. In one or more embodiments, each water supply pipeline 120 is provided with an on / off valve 123 to control the flow and flow rate of water in the water supply pipeline 120. The on / off valve 123 can be, but is not limited to, a solenoid valve, an electric valve, a pneumatic valve, etc. The on / off valve 123 is configured to connect to the controller 144 in the control system 140 (see...). Figure 3 A communication connection is established so that the on / off valve 123 can be automatically controlled using the controller 144.
[0033] like Figure 1 As shown, in one or more embodiments, four sets of image acquisition modules 130 are arranged at intervals on the mounting bracket 113. Each set of image acquisition modules 130 is paired with one smart water meter 200 to accurately acquire the dial image of the smart water meter 200. Alternatively, the number of image acquisition modules 130 may be set to more or less than four sets, such as three sets, five sets, etc., as long as they can be paired with the smart water meter 200. In addition, the verification device 100 of this utility model may also use a single set of image acquisition modules 130 to simultaneously acquire the dial images of multiple smart water meters 200, thereby reducing component costs.
[0034] like Figure 2 As shown, in one or more embodiments, each image acquisition module 130 includes a mounting base 131 and a high-speed camera 132. The mounting base 131 is fixed to a top bracket. Fixing methods include, but are not limited to, screwing, welding, and snap-fitting. The high-speed camera 132 is connected to the mounting base 131. The connection method can be screwing, snap-fitting, etc. Compared to ordinary cameras, the high-speed camera 132 has a higher frame rate (typically exceeding 1000 frames / second, and even reaching millions of frames / second), enabling it to quickly and clearly capture images of the rapidly rotating pointer in the mechanical dial 230 of the smart water meter 200. Alternatively, the image acquisition module 130 can also employ other suitable methods, such as eliminating the mounting base 131 and directly screwing or snap-fitting the high-speed camera 132 to the mounting bracket 113. Alternatively, the image acquisition module 130 can also use other suitable cameras, as long as they can clearly acquire images of the smart water meter 200's dial.
[0035] Figure 3 This is a schematic diagram of the system structure of an embodiment of the calibration device for smart water meters according to this utility model. Figure 1 and Figure 3As shown, in one or more embodiments, the control system 140 includes components such as a display 141, a keyboard 142, a mouse 143, and a controller 144. The display 141, keyboard 142, and mouse 143 are all communicatively connected to the controller 144. The display 141 is an output device that can visually present information acquired or processed by the controller 144 (such as the meter number of the smart water meter 200, dial image information, mechanical reading information, electronic reading information, etc.) to the user, and can also realize human-computer interaction, facilitating user feedback. The keyboard 142 and mouse 143 are input devices that facilitate user input of information, enabling human-computer interaction. Alternatively, the control system 140 can also adopt other suitable forms, such as tablet computers, smartphones, etc.
[0036] like Figure 3As shown, the controller 144 is the core component of the control system 140. It can communicate with various functional components to acquire, store, and process data. Specifically, the controller 144 is connected to the image acquisition module 130 to obtain the mechanical reading of the smart water meter 200 based on the dial image acquired by the image acquisition module 130. In one or more embodiments, an image recognition module (not shown) is built into the controller 144. This image recognition module can be trained using a certain number of dial image samples based on a deep learning framework to build a model that can accurately recognize mechanical readings, thereby accurately converting the dial image information acquired by the image acquisition module 130 into mechanical readings. In one or more embodiments, the controller 144 and the image acquisition module 130 are connected via a USB interface to ensure efficient transmission of image information. Alternatively, the controller 144 and the image acquisition module 130 can also communicate using other suitable methods, such as Bluetooth. In addition, the controller 144 is configured to communicate with the smart water meter 200 to obtain the electronic reading of the smart water meter 200. In one or more embodiments, the controller 144 and the smart water meter 200 establish a communication connection via an RS-485 interface. RS-485 uses differential signal transmission, representing the logic state through the voltage difference between two signal lines, and offers advantages such as long-distance operation, multiple nodes, anti-interference capabilities, and low cost. Alternatively, the controller 144 and the smart water meter 200 can also establish a communication connection via Bluetooth or other suitable methods. In one or more embodiments, the controller 144 has a built-in data receiving and parsing module (not shown in the figure). This module receives the electronic readings of the smart water meter 200 according to the communication protocol. Furthermore, the controller 144 compares the electronic readings and mechanical readings of the smart water meter 200 using a preset judgment program, thereby determining the accuracy of the electronic readings based on the mechanical readings. In one or more embodiments, the controller 144 also has a built-in reading comparison module (not shown in the figure). This module compares the identified mechanical readings with the parsed electronic readings. For example, when the percentage difference between the electronic reading and the mechanical reading (i.e., (electronic reading - mechanical reading) / mechanical reading × 100%) exceeds a preset threshold (e.g., 1%), the electronic reading is determined to be inconsistent with the mechanical reading; when the difference between the electronic reading and the mechanical reading does not exceed the preset threshold (i.e., less than or equal to the preset threshold), the electronic reading is determined to be consistent with the mechanical reading.
[0037] like Figure 3As shown, in one or more embodiments, the verification device 100 of this utility model further includes a reverse writing module 160 built into the controller 144. When the electronic reading does not match the mechanical reading, the reverse writing module 160 can modify the electronic reading so that the modified electronic reading matches the mechanical reading. The reverse writing module 160 allows for convenient and reliable modification of the electronic reading, realizing data reverse writing and ensuring the accuracy of the electronic reading of the smart water meter 200. In one or more embodiments, the reverse writing module 160 includes an instruction generation module and a communication control module (not shown in the figure). The instruction generation module generates a compliant reverse writing instruction data packet based on the correct mechanical reading and the communication protocol established with the smart water meter 200. The communication control module is responsible for sending the generated reverse writing instruction data packet to the smart water meter 200 through the communication interface and monitoring the execution status of the reverse writing operation.
[0038] like Figure 3 As shown, in one or more embodiments, the controller 144 is in communication with the on / off valve 123 on each water supply line 120 so as to control the opening, closing and opening degree of the on / off valve 123 according to input instructions (e.g. via keyboard 142 and mouse 143).
[0039] like Figure 2 As shown, in one or more embodiments, the verification device 100 of this utility model further includes a watch clamping mechanism 150. The watch clamping mechanism 150 includes a driving component 151 and a clamp 152 connected to the driving component 151. The driving component 151 forms a communication connection with the controller 144 (see...). Figure 3 The clamping mechanism 150 is designed to control the clamp 152 to hold the smart water meter 200. This mechanism facilitates the clamping and securing of the smart water meter 200, preventing it from shaking or slipping due to water flow during calibration, thus improving calibration efficiency and stability. The drive component 151 can be fixed to the operating table 111 to enhance its stability. The type of drive component 151 is not limited, and it can be, for example, a cylinder, a servo motor, or a stepper motor. The clamp 152 is fixed to the output end of the drive component 151, allowing the clamp 152 to move towards or away from the smart water meter 200 by controlling the output of the drive component 151, thereby clamping and securing the smart water meter 200. It should be noted that the specific shape of the clamp 152 is not limited, as long as it can be compatible with the smart water meter 200; for example, it can be a clamping plate or a gripper.
[0040] See also Figure 2In one or more embodiments, the drive component 151 includes a first drive component 1511 and a second drive component 1512 that are opposite to each other. Correspondingly, the clamp 152 includes a first clamp 1521 and a second clamp 1522 that are opposite to each other. The first clamp 1521 is connected to the first drive component 1511, and the second clamp 1522 is connected to the second drive component 1512. In the assembled state, the first clamp 1521 and the second clamp 1522 are respectively disposed on both sides of the smart water meter 200. By providing two sets of opposite drive components 151, the smart water meter 200 can be clamped more independently and flexibly. Alternatively, the drive component 151 may also include only one of the first drive component 1511 and the second drive component 1512, and correspondingly, the clamp 152 may also include only one of the first clamp 1521 and the second clamp 1522. In one or more embodiments, each of the first clamp 1521 and the second clamp 1522 is provided with a clearance hole (not shown in the figure) to allow the water supply pipe 120 to pass through, thereby optimizing the arrangement of the calibration device 100. In one or more embodiments, each of the first clamp 1521 and the second clamp 1522 is provided with a micro switch (not shown in the figure) for detecting whether the smart water meter 200 is clamped in place, to ensure the reliability of clamping. The micro switch can form a communication connection with the controller 144 to further improve the automation and precision of control.
[0041] See also Figure 2In one or more embodiments, the clamping mechanism 150 further includes a connecting pipe 153 connected to the clamp 152. The connecting pipe 153 is connected to the water supply pipe 120, and in the assembled state, the connecting pipe 153 is sleeved on the inlet pipe 210 or outlet pipe 220 of the smart water meter 200. It should be noted that the connecting pipe 153 and the water supply pipe 120 can be connected by sleeve or other suitable methods to form a sealed connection. In addition, the connection method between the connecting pipe 153 and the clamp 152 can be abutment, screw connection, snap connection, etc. In one or more embodiments, a sealing ring is also provided inside the connecting pipe 153, so that a stable and reliable sealed connection can be formed when the connecting pipe 153 is sleeved with the corresponding inlet pipe 210 or outlet pipe 220. Therefore, when the driving component 151 operates, the connecting pipe 153 can be driven by the clamp 152 to move towards the smart water meter 200, so that the connecting pipe 153 can be conveniently and stably sleeved onto the corresponding inlet pipe 210 or outlet pipe 220 in the smart water meter 200. In this way, the clamping mechanism 150 can not only stably and firmly clamp the smart water meter 200, but also conveniently and quickly connect the water supply pipeline 120 to the smart water meter 200 using the connecting pipe 153 to achieve fluid communication. In addition, by replacing the connecting pipe 153 with different diameters, the calibration device 100 of this utility model can also be connected to smart water meters 200 of different specifications, thereby better meeting the calibration needs. In one or more embodiments, the connecting pipe 153 includes a first connecting pipe 1531 and a second connecting pipe 1532 that are opposite to each other. The first connecting pipe 1531 is located between the first clamp 1521 and the smart water meter 200, and the first connecting pipe 1531 is connected to the inlet pipe 210 of the smart water meter 200. The second connecting pipe 1532 is located between the second clamp 1522 and the smart water meter 200, and the second connecting pipe 1532 is connected to the water outlet pipe 220 of the smart water meter 200. Alternatively, the connecting pipe 153 may include only one of the first connecting pipe 1531 and the second connecting pipe 1532, as long as it can be easily fitted with the clamp 152 to connect to the water inlet pipe 210 (or water outlet pipe 220) of the smart water meter 200.
[0042] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A calibration device (100) for a smart water meter (200), characterized in that, The verification device (100) includes: A water supply line (120) adapted to be connected to the smart water meter (200) to allow water to flow through the smart water meter (200); Image acquisition module (130), the image acquisition module (130) being adapted to acquire an image of the dial (230) of the smart water meter (200); and A controller (144) is connected to the image acquisition module (130) to acquire the mechanical reading of the smart water meter (200) based on the image of the dial (230), and the controller (144) is configured to form a communication connection with the smart water meter (200) to acquire the electronic reading of the smart water meter (200), and to determine whether the electronic reading is accurate based on the mechanical reading.
2. The calibration device (100) for a smart water meter (200) according to claim 1, characterized in that, The verification device (100) further includes: A reverse writing module (160) is built into the controller (144) so that when the electronic reading does not match the mechanical reading, the electronic reading can be modified by the reverse writing module (160) so that the modified electronic reading matches the mechanical reading.
3. The calibration device (100) for a smart water meter (200) according to claim 1 or 2, wherein a plurality of the water supply lines (120) are arranged in parallel, and each of the water supply lines (120) is adapted to be connected to a corresponding smart water meter (200).
4. The calibration device (100) for a smart water meter (200) according to claim 3, characterized in that, Each of the water supply pipelines (120) is provided with an on / off valve (123), and each of the on / off valves (123) is connected in communication with the controller (144).
5. The calibration device (100) for a smart water meter (200) according to claim 1 or 2, characterized in that, The image acquisition module (130) includes a high-speed camera (132), and each of the high-speed cameras (132) is adapted to be paired with a corresponding smart water meter (200).
6. The calibration device (100) for a smart water meter (200) according to claim 1 or 2, characterized in that, The verification device (100) further includes: The meter clamping mechanism (150) includes a drive component (151) and a clamp (152) connected to the drive component (151), wherein the drive component (151) is in communication connection with the controller (144) to control the clamp (152) to clamp the smart water meter (200).
7. The calibration device (100) for a smart water meter (200) according to claim 6, characterized in that, The drive component (151) includes a first drive component (1511) and a second drive component (1512) that are opposite to each other. The clamp (152) includes a first clamp (1521) connected to the first drive component (1511) and a second clamp (1522) connected to the second drive component (1512), wherein the first clamp (1521) and the second clamp (1522) are configured to be positioned on both sides of the smart water meter (200).
8. The calibration device (100) for a smart water meter (200) according to claim 7, characterized in that, Each of the first clamp (1521) and the second clamp (1522) is provided with a clearance hole that allows the water supply pipe (120) to pass through; and / or Each of the first clamp (1521) and the second clamp (1522) is provided with a micro switch for detecting whether the smart water meter (200) is clamped in place.
9. The calibration device (100) for a smart water meter (200) according to claim 6, characterized in that, The clamping mechanism (150) further includes a connecting pipe (153) connected to the clamp (152), wherein the connecting pipe (153) is connected to the water supply pipeline (120), and the connecting pipe (153) is adapted to be sleeved on at least one of the water inlet pipe (210) and water outlet pipe (220) of the smart water meter (200).
10. The calibration device (100) for a smart water meter (200) according to claim 1, characterized in that, The image acquisition module (130) and the controller (144) are connected via a USB interface; and / or The controller (144) is adapted to establish a communication connection with the smart water meter (200) via an RS-485 interface or wireless Bluetooth.