Intelligent water meter

Abstract

The utility model provides a kind of intelligent water meter, it is related to water gauge field, the scheme used is: including water gauge base table and control component, the water gauge base table includes dial, the dial is rotatably provided with number of acquisition pointer, two magnetic blocks are oppositely arranged on the number of acquisition pointer, two the magnetic blocks are oppositely arranged, the control component includes electrically connected controller and number of acquisition circuit board, two magnetic switches are provided on the number of acquisition circuit board, two the magnetic switches oppositely arranged two and are respectively arranged in the both sides of the number of acquisition pointer.The utility model can identify the rotation direction of pointer.

Description

Technical Field

[0001] This utility model relates to the field of water meters, and in particular to a smart water meter. Background Technology

[0002] Smart water meters, distributed throughout urban areas as user terminals, are a crucial component and key element of smart water networks. Beyond simply reading meters and collecting bills, and providing data analysis for water management and production, smart water meters can also offer data services to users via the network and provide a network monitoring platform for after-sales service.

[0003] In existing technologies, the electromechanical separation structure of integrated smart water meters has become a development trend. This means that the mechanical part of the water meter—the valve-controlled water meter base—is independent of the electronic part—the outer casing assembly. Both parts can be manufactured simultaneously during production and finally fixed together with multiple screws. Data acquisition in smart valve-controlled electronic water meters typically uses reed switches or Hall effect sensors. A magnet is placed on the circumference of a rotating shaft at a certain stage of the water meter's mechanism. The shaft drives the magnet to rotate. When the magnet closes the switch, the controller collects an electronic signal; that is, one electronic signal is collected for each rotation of the shaft. This serves as one electronic meter reading for the smart electronic water meter and is transmitted to the backend via a communication module for billing.

[0004] Using the above technical solution, regardless of whether the shaft rotates forward or backward, the magnet will always cause the sensor to send an electrical signal for counting, making the smart water meter unable to recognize forward or reverse rotation, resulting in measurement distortion, inaccurate billing in the background, and also unable to recognize installation errors such as the water meter being installed backward. Utility Model Content

[0005] To address the technical problem in the prior art that smart water meters cannot identify the direction of pointer rotation, this utility model provides a smart water meter that can identify the direction of pointer rotation.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a smart water meter, including a water meter base and a control component. The water meter base includes a dial, on which a data acquisition pointer is rotatably mounted. Two magnetic blocks are arranged opposite each other on the data acquisition pointer. The control component includes a controller and a data acquisition circuit board that are electrically connected. Two magnetic switches are arranged opposite each other on both sides of the data acquisition pointer. The controller is also equipped with a wireless communication module.

[0007] This invention, by setting two magnetic switches and two magnetic blocks, can determine the rotation direction of the data acquisition pointer by observing the signal changes of the two magnetic switches during the forward and reverse rotation of the pointer, thus achieving accurate and reliable identification of the pointer's direction of rotation. It also sends corresponding information to the backend via a wireless communication module to avoid billing distortion and to identify installation abnormalities.

[0008] Furthermore, the data acquisition pointer has a disc-shaped structure, the magnetic block is embedded on the back of the data acquisition pointer, the two magnetic blocks are set at both ends of the same diameter of the data acquisition pointer, and the data acquisition pointer is connected to a gear shaft of the water meter base.

[0009] This invention uses a disc-shaped pointer, which facilitates the installation of the magnetic block, improves the connection strength, and at the same time ensures that the disc is subjected to balanced force, reduces rotational wear, and improves the stability and sensitivity of rotation.

[0010] Furthermore, the gear shaft is the gear shaft corresponding to the rising scale of the water meter base.

[0011] This invention reduces the sampling frequency by setting the data acquisition pointer at the ascending scale, thereby avoiding high-frequency operation of the data acquisition circuit board, reducing maintenance costs, and filtering out minor interference caused by pipeline fluctuations, thus reducing false triggering.

[0012] Furthermore, the data collection pointer is provided with a water volume scale, and an indicator is provided on the dial at the position corresponding to the data collection pointer.

[0013] This invention facilitates manual reading by setting water volume scales and indicator marks.

[0014] Furthermore, the magnetic switch employs a Hall element.

[0015] Furthermore, the control component includes an upper housing, the water meter base includes a lower housing, the upper housing and the lower housing are connected by bolts, and a sealing gasket is provided between the upper housing and the lower housing.

[0016] This invention facilitates modular production and maintenance by detaching and connecting the upper and lower shells, and achieves moisture and dust protection through sealing gaskets.

[0017] Furthermore, the upper housing comprises, from top to bottom, a cover, a top cover, a middle housing, and a bottom housing. The middle housing is connected to the bottom housing by bolts. The controller is disposed inside the middle housing. The middle housing is fitted onto the bottom housing. A receiving cavity is provided on the side of the middle housing near the dial. The data acquisition circuit board is disposed in the receiving cavity. A receiving groove is provided on the side of the data acquisition circuit board near the data acquisition pointer. The data acquisition pointer is located in the receiving groove. A motor is also disposed inside the middle housing. The motor drives the control ball valve of the water meter base meter through a transmission shaft. The motor is electrically connected to the controller. A battery is disposed inside the bottom housing. The battery is electrically connected to the data acquisition circuit board, the controller, and the motor.

[0018] This invention achieves a compact structure for the smart water meter by setting up a receiving cavity and a receiving groove, reducing space occupation and facilitating assembly.

[0019] Furthermore, a battery compartment is detachably connected to the lower part of the bottom shell, and the battery is disposed inside the battery compartment.

[0020] This invention installs the battery on the outside of the bottom shell by setting a battery compartment, which makes it easy for staff to replace the battery without disassembling the entire smart water meter.

[0021] Furthermore, the upper end of the battery compartment is threadedly connected to the mounting hole on the bottom shell.

[0022] Furthermore, a sealing ring is provided between the battery compartment and the bottom shell.

[0023] As can be seen from the above technical solutions, this utility model has the following advantages: This invention provides a smart water meter. By setting two magnetic switches and two magnetic blocks, the direction of rotation of the data acquisition pointer can be determined by the signal changes of the two magnetic switches during the forward and reverse rotation of the pointer, achieving accurate and reliable identification of the pointer's direction of rotation. Corresponding information is sent to the backend via a wireless communication module to avoid billing distortion and to identify installation abnormalities. The use of a disc-shaped pointer facilitates magnetic block installation, improves connection strength, ensures balanced force on the disc, reduces rotational wear, and enhances rotational stability and sensitivity. By placing the data acquisition pointer at the ascending scale, the sampling frequency is reduced, avoiding high-frequency operation of the data acquisition circuit board, lowering maintenance costs, and filtering out minor interference from pipeline fluctuations, reducing false triggering. The detachable connection of the upper and lower housings facilitates modular production and maintenance, and the sealing gasket provides moisture and dust protection. The inclusion of a receiving cavity and groove achieves a compact structure for the smart water meter, reducing space occupation and facilitating assembly. The battery compartment houses the battery on the outside of the bottom housing, allowing for easy battery replacement without disassembling the entire smart water meter. Attached Figure Description

[0024] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0026] Figure 2 This is a schematic diagram of the assembly structure of the data acquisition circuit board and the data acquisition pointer in an embodiment of this utility model.

[0027] Figure 3 This is an exploded view of the data acquisition circuit board and data acquisition pointer in an embodiment of this utility model.

[0028] Figure 4 This is an exploded view of the control component in an embodiment of this utility model.

[0029] Figure 5 This is an exploded view of the water meter base in an embodiment of this utility model.

[0030] Figure 6 This is a schematic diagram illustrating the principle of determining forward rotation in an embodiment of this utility model.

[0031] Figure 7 This is a schematic diagram illustrating the principle of determining reversal in an embodiment of this utility model.

[0032] In the diagram, 1. Water meter base; 2. Control components; 3. Data acquisition circuit board; 4. Magnetic switch; 5. Data acquisition pointer; 6. Magnetic block; 7. Receiving slot; 8. Top cover; 9. Bottom shell; 10. Battery compartment; 11. Motor; 12. Receiving cavity; 13. Meter cover; 14. Middle shell; 15. Meter cover; 16. Glass plate; 17. Dial; 18. Meter case; 19. Non-sensing area; 20. Sensing area; 21. Tens pointer; 22. Tens pointer; 23. Hundreds pointer; 24. Sealing ring; 25. Upper shell; 26. Lower shell. Detailed Implementation

[0033] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0034] like Figures 1 to 3 As shown, this embodiment provides a smart water meter, including a water meter base 1 and a control component 2. The water meter base 1 includes a dial 17, on which a data acquisition pointer 5 is rotatably mounted. Two magnetic blocks 6 are positioned opposite each other on the data acquisition pointer 5. The control component 2 includes a controller and a data acquisition circuit board 3 electrically connected. Two magnetic switches 4 are mounted on the data acquisition circuit board, positioned opposite each other and respectively on both sides of the data acquisition pointer 5. The controller also includes a wireless communication module. The working principle of this smart water meter is as follows: when the magnetic blocks 6 rotate to… The magnetic switch 4 has a sensing area 20. The magnetic switch 4 generates an electrical signal. The two magnetic switches 4 and the magnetic block 6 are set opposite each other. The sensing areas 20 of the two magnetic switches 4 are distributed differently, and there is also a non-sensing area 19 between them. When both magnetic blocks 6 are located in the non-sensing area 19, neither magnetic switch 4 can emit a signal. With this setting, the signal change sequence of the two magnetic switches 4 is completely different under different rotation directions of the data acquisition pointer. The controller analyzes the signal change process to determine whether the data acquisition pointer is rotating forward or backward, and transmits it to the back-end terminal through the wireless communication module to attract the attention of the staff and troubleshoot abnormalities.

[0035] This embodiment uses two magnetic switches 4 and two magnetic blocks 6 to determine the direction of rotation of the data acquisition pointer 5 by observing the signal changes of the two magnetic switches 4 during the forward and reverse rotation process. This enables accurate and reliable identification of the pointer's direction of rotation and sends corresponding information to the backend via a wireless communication module, thus avoiding billing distortion and identifying installation abnormalities.

[0036] In this embodiment, as Figures 2 to 3 As shown, the data acquisition pointer 5 has a disc-shaped structure, and the magnetic block 6 is embedded in the back of the data acquisition pointer 5. Two magnetic blocks 6 are set at both ends of the same diameter of the data acquisition pointer. The data acquisition pointer 5 is connected to a gear shaft of the water meter base 1. Specifically, the back of the data acquisition pointer is provided with three mounting slots. Two mounting slots are provided with corresponding magnetic blocks 6, and the magnetic blocks 6 are interference-fitted with the mounting slots. The middle mounting slot is used for interference-fitting with the gear shaft. After this arrangement, on the one hand, it ensures that the two magnetic blocks 6 are symmetrically distributed on the data acquisition pointer, avoiding uneven weight distribution that causes uneven wear of the gear shaft rotation, increases operating resistance, and affects sensitivity. On the other hand, it ensures the connection strength between the data acquisition pointer and the magnetic blocks 6, prevents them from falling off, and improves the reliability of direction judgment.

[0037] like Figure 1As shown, in this embodiment, the gear shaft is the gear shaft corresponding to the rising scale of the water meter base 1; by setting the data sampling pointer at the rising scale, the sampling frequency is reduced, avoiding high-frequency operation of the data sampling circuit board, reducing maintenance costs, and filtering out minor interference caused by pipeline fluctuations, reducing false triggering; furthermore, the data sampling pointer 5 is provided with a water volume scale, and the dial 17 is provided with an indicator at the position corresponding to the data sampling pointer 5, so that the indicator and scale facilitate manual reading by the staff.

[0038] The magnetic switch 4 can be a reed switch, a magnetoresistive sensor, etc. In this embodiment, the magnetic switch 4 uses a Hall element. The Hall element is set on the base plate of the data acquisition circuit board and is electrically connected to the resistors, capacitors and other components on the data acquisition circuit board.

[0039] like Figure 5 As shown, to facilitate the assembly and maintenance of the smart water meter, in this embodiment, the control component 2 includes an upper housing 25, and the water meter base 1 includes a lower housing 26. The upper housing 25 and the lower housing 26 are connected by bolts, and a sealing gasket is also provided between the upper housing 25 and the lower housing 26. By disassembling and connecting the upper housing 25 and the lower housing 26, modular production and maintenance are facilitated, and the sealing gasket provides moisture and dust protection. Specifically, the lower housing 26 includes, from top to bottom, a cover 15, a glass plate 16, a dial 17, and a housing 18. The cover 15 is provided with internal threads and... The watch case 18 is threaded and the glass plate 16 is pressed onto the watch case 18. The dial 17 is located inside the watch case 18. The dial 17 is provided with a tenths pointer 21, a number pointer, a tenths pointer 22, a hundredths pointer and corresponding scales. The tenths pointer 21, the number pointer, the tenths pointer 22, and the hundredths pointer 23 are respectively connected to the corresponding gear shafts. The watch case 18 is provided with a gear set and blades. The blades are provided with drive gears. The gear set includes a gear shaft. The gear set rotates under the action of the drive gears of the blades. The blades are also connected to an indicator pointer, which is located on the upper part of the dial 17.

[0040] like Figure 4As shown, to achieve a compact installation of the upper housing 25 and the lower housing 26, in this embodiment, the upper housing 25 includes, from top to bottom, a watch cover 13, an upper cover 8, a middle housing 14, and a bottom housing 9. The watch cover 13 is hinged to the upper cover 8. The upper cover 8 and the bottom housing 9 are respectively installed at the upper and lower ends of the middle housing 14. The middle housing 14 and the lower housing 26 are connected by bolts. The controller is located inside the middle housing 14. The middle housing 14 is fitted onto the watch cover 15 of the lower housing 26. The middle housing 14 has a protruding receiving cavity 12 on the side near the dial 17. The data acquisition circuit board 3 is fixedly installed in the receiving cavity 12 by screws. The data acquisition circuit board 3 has a receiving groove 7 on the side near the data acquisition pointer 5. The pointer 5 is located in the receiving groove 7. A motor 11 is also provided in the middle shell 14. The motor 11 is connected to a drive shaft, which extends into the meter case 18. The motor 11 drives the control ball valve of the water meter base 1 through the drive shaft. The motor 11 is electrically connected to the controller. A battery is provided in the bottom shell 9. The battery is electrically connected to the data acquisition circuit board, the controller, and the motor 11. Furthermore, to facilitate battery replacement, a battery compartment 10 is detachably connected to the lower part of the bottom shell 9. The battery is placed in the battery compartment 10. The upper end of the battery compartment 10 is threadedly connected to the mounting hole on the bottom shell 9. A sealing ring 24 is provided between the battery compartment 10 and the bottom shell 9 to prevent dust and moisture.

[0041] The working process of this smart water meter in recognizing forward and reverse rotation is as follows: To facilitate the explanation of the working principle, the two magnetic blocks 6 are defined as Magnetic One and Magnetic Two, respectively, and the two magnetic switches 4 are defined as Switch One and Switch Two, respectively; When the magnetic pointers Magnetic One and Magnetic Two are located in the sensing areas 20 of Switch One and Switch Two respectively, both magnetic switches 4 emit electrical signals. like Figure 6 As shown, when rotating clockwise: when magnet one leaves the sensing area 20 of switch one and enters the non-sensing area 19, while magnet two remains in the sensing area 20 of switch two, the signal state of magnetic switch 4 changes to no signal for switch one and a signal for switch two. Continuing to rotate clockwise, both magnet one and magnet two enter the non-sensing area 19, and the signal state of magnetic switch 4 changes to no signal for both switch one and switch two. Continuing to rotate, magnet one remains in the non-sensing area 19, while magnet two is in the sensing area 20 of switch one, and the signal state of magnetic switch 4 changes to a signal for switch one and no signal for switch two. Continuing to rotate, both magnet one and magnet two are in the sensing area 20, and both magnetic switches 4 emit electrical signals. When the signal changes of the two magnetic switches 4 conform to this pattern, it is determined to be clockwise rotation, i.e., forward rotation, as shown in the table below:

[0042] like Figure 7As shown, rotating counterclockwise: When magnet 2 leaves the sensing area 20 of switch 2 and enters the non-sensing area 19, magnet 1 remains in the sensing area 20 of switch 1. At this time, the signal state of magnetic switch 4 changes to switch 1 having a signal and switch 2 having no signal. Continuing to rotate counterclockwise, both magnet 2 and magnet 1 are located in the non-sensing area 19. At this time, the signal state of magnetic switch 4 changes to both switch 1 and switch 2 having no signal. Continuing to rotate, magnet 1 enters the sensing area 20 of switch 2, and magnet 2 is in the non-sensing area 19. At this time, the signal state of magnetic switch 4 changes to switch 1 having no signal and switch 2 having a signal. Continuing to rotate, both magnet 1 and magnet 2 are located in the sensing area 20, and both magnetic switches 4 emit electrical signals. When the signal changes of the two magnetic switches 4 conform to this pattern, it is determined to be counterclockwise rotation, i.e., reverse rotation, as shown in the table below:

[0043] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. By setting two magnetic switches 4 and two magnetic blocks 6, the direction of rotation of the data acquisition pointer 5 can be determined by the signal change process of the two magnetic switches 4 during the forward and reverse rotation process, so as to achieve accurate and reliable identification of the pointer direction. The corresponding information is sent to the background through the wireless communication module to avoid billing distortion, and at the same time, it can identify abnormal installation. 2. By adopting a disc-shaped pointer, it is easier to install the magnetic block 6, which improves the connection strength. At the same time, it can ensure that the disc is subjected to balanced force, reduce rotational wear, and improve the stability and sensitivity of rotation. 3. By setting the data acquisition pointer at the ascending scale, the sampling frequency is reduced, avoiding high-frequency operation of the data acquisition circuit board, reducing maintenance costs, and filtering out minor interference caused by pipeline fluctuations, thus reducing false triggering. 4. By detaching and connecting the upper housing 25 and the lower housing 26, modular production and maintenance are facilitated, and moisture and dust are prevented through sealing gaskets; 5. The compact structure of this smart water meter is achieved by setting up the receiving cavity 12 and the receiving groove 7, which reduces space occupation and facilitates assembly; 6. By setting up the battery compartment 10, the battery is installed on the outside of the bottom shell 9, which makes it easy for staff to replace the battery without disassembling the entire smart water meter.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smart water meter, comprising a water meter base (1) and a control component (2), characterized in that, The water meter base (1) includes a dial (17), on which a data acquisition pointer (5) is rotatably mounted. Two magnetic blocks (6) are arranged opposite each other on the data acquisition pointer (5). The control component (2) includes a controller and a data acquisition circuit board (3) that are electrically connected. Two magnetic switches (4) are arranged on the data acquisition circuit board (3). The two magnetic switches (4) are arranged opposite each other and are respectively located on both sides of the data acquisition pointer (5). The controller is also equipped with a wireless communication module.

2. The smart water meter as described in claim 1, characterized in that, The data acquisition pointer (5) has a disc-shaped structure. The magnetic block (6) is embedded in the back of the data acquisition pointer (5). Two magnetic blocks (6) are set at both ends of the same diameter of the data acquisition pointer (5). The data acquisition pointer (5) is connected to a gear shaft of the water meter base (1).

3. The smart water meter as described in claim 2, characterized in that, The gear shaft is the gear shaft corresponding to the rising position scale of the water meter base (1).

4. The smart water meter as described in claim 3, characterized in that, The data collection pointer (5) is provided with a water volume scale, and the dial (17) is provided with an indicator mark at the position corresponding to the data collection pointer (5).

5. The smart water meter according to any one of claims 1-4, characterized in that, The magnetic switch (4) uses a Hall element.

6. The smart water meter as described in claim 5, characterized in that, The control component (2) includes an upper housing (25), and the water meter base (1) includes a lower housing (26). The upper housing (25) and the lower housing (26) are connected by bolts, and a sealing gasket is provided between the upper housing (25) and the lower housing (26).

7. The smart water meter as described in claim 6, characterized in that, The upper housing (25) includes, from top to bottom, a cover (13), an upper cover (8), a middle housing (14), and a bottom housing (9). The middle housing (14) is connected to the lower housing (26) by bolts. The controller is located inside the middle housing (14). The middle housing (14) has a cavity (12) protruding from the side near the dial (17). The data acquisition circuit board (3) is located inside the cavity (12). The data acquisition circuit board (3) has a groove (7) near the data acquisition pointer (5). The data acquisition pointer (5) is located inside the groove (7). The middle housing (14) also has a motor (11). The motor (11) drives the control ball valve of the water meter base (1) through a transmission shaft. The motor (11) is electrically connected to the controller. The bottom housing (9) has a battery. The battery is electrically connected to the data acquisition circuit board (3), the controller, and the motor (11).

8. The smart water meter as described in claim 7, characterized in that, The bottom shell (9) is detachably connected to a battery compartment (10), and the battery is placed inside the battery compartment (10).

9. The smart water meter as described in claim 8, characterized in that, The upper end of the battery compartment (10) is threadedly connected to the mounting hole on the bottom shell (9).

10. The smart water meter as described in claim 9, characterized in that, A sealing ring (24) is provided between the battery compartment (10) and the bottom shell (9).

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