CN209927214U - Intelligent water meter sampling and signaling base meter - Google Patents
Intelligent water meter sampling and signaling base meter Download PDFInfo
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- CN209927214U CN209927214U CN201921089316.7U CN201921089316U CN209927214U CN 209927214 U CN209927214 U CN 209927214U CN 201921089316 U CN201921089316 U CN 201921089316U CN 209927214 U CN209927214 U CN 209927214U
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Abstract
The utility model relates to an intelligent water meter sampling and transmitting base meter, which comprises a base meter main body and a sampling and transmitting device, the sampling and signaling device comprises a shell, signaling magnetic steel, auxiliary magnetic steel, at least one Hall sensor and a circuit board, the shell comprises a first part sleeved on the base watch main body and a second part positioned on one side of the first part, the signaling magnetic steel is arranged on the pointer of the base watch main body, the auxiliary magnetic steel, the at least one Hall sensor and the circuit board are all arranged in the second part, wherein, the Hall sensor is positioned on the side surface of the base watch main body and is horizontally opposite to the signaling magnetic steel, the auxiliary magnetic steel is positioned at a certain distance from one side of the Hall sensor opposite to the signaling magnetic steel, and the circuit board is used for collecting signals detected by the Hall sensors and transmitting the signals to a remote data center.
Description
Technical Field
The utility model relates to an intelligence water gauge field specifically relates to an intelligence water gauge sampling transmission base table.
Background
With the gradual advance of national one-household one-meter policies, smart cities and the like, the intelligent water meters are increasingly used on various projects. Most of the existing intelligent water meters for pulse measurement and sampling are provided with a magnetic sensing module of a U-shaped structure above a dial plate of a base meter main body, and the magnetic sensing module is used for synchronously recording the reading of the water meter. The intelligent water meter with the structure has the following problems: the method comprises the following steps that 1, a magnetic sensing module with a U-shaped structure can shield reading, and automatic calibration equipment cannot correctly read dial reading in the production and third-party forced inspection processes of the water meter; 2. the problem that iron sheets or other parts can be inserted into a gap (or be strongly extruded) between a transparent protective window (generally toughened glass) and a U-shaped magnetic sensing module, so that the acquisition of water meter signals is influenced, and the water meter does not conform to the national standard 6.1.7 of GB/T778-2018.1 drinking cold water meters and hot water meters: the design, composition and structure of water meters should not facilitate the implementation of fraudulent terms; the method does not conform to the national metrological verification regulation 6.7.3.2b of JJG162-2009 cold water meter: where the water meter has interchangeable parts which can be separated by the user, it should be prevented from inserting any parts which might affect the measurement results.
In addition, the current water meter generally adopts a nodular cast iron shell, and the signaling magnetic steel is arranged on a pointer of a water meter movement, namely is fixed in the nodular cast iron shell and horizontally opposite to a magnetic induction device arranged on a plastic shell outside the nodular cast iron shell. Therefore, the magnetic steel with too large magnetic flux can not be selected, and the too large magnetic flux can generate action suction with the close nodular cast iron shell, increase the resistance of the gear transmission of the water meter movement counter and seriously affect the metering precision of the water meter. In addition, the opening threshold of the domestic Hall device is higher, so that the working distance between the signaling magnetic steel and the Hall device cannot be too far, and the working distance between the Hall device corresponding to the magnetic steel is shorter as the magnetic flux of the magnetic steel is smaller. This brings very big limitation to the design and manufacture of intelligent water gauge.
Disclosure of Invention
The utility model aims at providing an intelligence water gauge sampling signalling base table to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:
an intelligent water meter sampling and signaling base meter comprises a base meter main body and a sampling and signaling device, wherein the sampling and signaling device comprises a shell, signaling magnetic steel, auxiliary magnetic steel, at least one Hall sensor and a circuit board, the shell comprises a first part sleeved on the base watch main body and a second part positioned on one side of the first part, the signaling magnetic steel is arranged on the pointer of the base watch main body, the auxiliary magnetic steel, the at least one Hall sensor and the circuit board are all arranged in the second part, wherein, the Hall sensor is positioned on the side surface of the base watch main body and is horizontally opposite to the signaling magnetic steel, the auxiliary magnetic steel is positioned at a certain distance from one side of the Hall sensor opposite to the signaling magnetic steel, and the circuit board is used for collecting signals detected by the Hall sensors and transmitting the signals to a remote data center.
Further, the circuit board includes master control circuit board and sampling circuit board, hall sensor installs on the sampling circuit board, the sampling circuit board is used for gathering the signal that hall sensor detected and export extremely master control circuit board, master control circuit board is used for right the signal of sampling circuit board input is handled and is conveyed to remote data center.
Further, the number of the hall sensors is 2.
Furthermore, a mounting groove for mounting the sampling circuit board is arranged in the second part of the shell, so that the shell is convenient to encapsulate and is waterproof.
Still further, an auxiliary magnetic steel mounting seat is arranged on one side, away from the first part, of the mounting groove.
Furthermore, the main control circuit board is provided with an NB-IOT communication module.
Further, the distance between the auxiliary magnetic steel and the Hall sensor is 0.5-2 cm.
Further, a cylindrical battery compartment is provided in the second portion of the housing.
The utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses a set up supplementary magnet steel for the distance between hall sensor and the signaling magnet steel can increase, and then make the sampling signaling apparatus can adopt the side-mounted mode, therefore the dial plate can be totally sheltered from, can not influence the water gauge production and the third party and examine the data reading of the automatic check-up equipment in the process by force; and other metal sheets such as iron sheets or foreign matters can not contact and separate the interaction of the Hall sensor and magnetic lines of force of the magnetic steel, so that the sampling is ensured to be correct.
Drawings
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
Fig. 1 is a top view of an intelligent water meter sample signaling base meter with a cover removed from the housing to show internal structure;
figure 2 is a side view, partially in cross-section, of the smart water meter, shown in figure 1, with a signaling base meter.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1 and 2, an intelligent water meter sampling and transmitting base meter includes a base meter body 1 and a sampling and transmitting device 2. The base watch body 1 may include a water meter case, a metering mechanism, a transparent protection window, a metal cover, etc., and its structure is prior art and will not be described here.
The sampling and signaling device 2 comprises a shell 21, signaling magnetic steel 22, auxiliary magnetic steel 23, at least one hall sensor 24, a battery (not shown) and a circuit board. The case 21 includes a first portion 211 for being fitted over the base watch body 1 and a second portion 212 on the side of the first portion 211. The housing 21 may be integrally injection molded from plastic. The second part 212 is used to receive the auxiliary magnetic steel 23, the hall sensor 24, the battery and the circuit board. Specifically, the second portion 212 has therein a battery chamber 2121, a mounting cavity 2122 of the main control circuit board, a mounting groove 2123 of the sampling circuit board 25, and a mounting seat 2124 of the auxiliary magnetic steel 23. The batteries are mounted in a battery housing 2121. In the illustrated embodiment, the battery compartment 2121 is cylindrical, in which case the batteries are cylindrical. It should be understood that the shape of the battery case 2121 may be set according to the shape of the battery. The mounting slot 2123 is located on a side of the first portion 211 and the mounting seat 2124 is located on a side of the mounting slot 2123 remote from the first portion 211. A cover (not shown) is provided on the second portion 212 of the housing 21. The cover may be snapped or screwed onto the second portion 212 to facilitate removal. Therefore, metal sheets or foreign matters such as iron sheets cannot enter the shell 21, and the metal sheets or the foreign matters cannot contact and separate the interaction between the Hall sensor and magnetic lines of force of the magnetic steel, so that the sampling is ensured to be correct.
The signaling magnet 22 is mounted on the pointer of the base watch body 100, for example, at 0.1m3On the pointer of the gear. The auxiliary magnetic steel 23 and the hall sensor 24 are installed in the second portion 212, specifically, in the mount base 2124 and the mount groove 2123, respectively. The signaling magnet steel 22 is located on the side surface of the base watch main body 100 and horizontally opposite to the signaling magnet steel 22. The auxiliary magnetic steel 23 is located at a certain distance from one side of the hall sensor 24 opposite to the signaling magnetic steel 22, and has a different polarity from the signaling magnetic steel 22 acting on the hall sensor 24. Namely, the signaling magnetic steel 22 and the auxiliary magnetic steel 23 are respectively located at two sides of the hall sensor 24, and the magnetic poles of the signaling magnetic steel 22 and the auxiliary magnetic steel 23 are the same. The hall sensor 24 is always in the magnetic field preset by the auxiliary magnetic steel 23. The hall sensor 24 is driven to work together by utilizing the principle that the homopolar poles of the signaling magnetic steel 22 and the homopolar poles of the auxiliary magnetic steel 23 repel each other and the heteropolar poles attract each other, so that the hall sensor 24 can work normally when being installed on the side surface of the base meter main body 100. That is, the distance between the transmission magnet 22 and the hall sensor 24 is increased as compared with a conventional sampling device mounted above the dial. Because the Hall sensor 24 is arranged on the side surface of the base meter main body 100, the dial plate can not be shielded, and the data reading of the automatic calibration equipment in the water meter production and third-party forced inspection process can not be influenced. In the illustrated embodiment, the number of hall sensors 24 is 2. But it should be understood that of hall sensor 24The number is not limited to the illustrated embodiment. Whether the pointer is rotated is determined by signals detected by the two hall sensors 24.
The circuit board is mounted in the second section for collecting signals detected by the hall sensor 24 and transmitting to a remote data center. In the illustrated embodiment, the circuit boards include a master circuit board (not shown) and a sampling circuit board 25. Wherein, the main control circuit board is installed in the mounting cavity 2122, and is used for processing (for example, filtering, AD converting, etc.) and transmitting the signals input by the sampling circuit board 25 to the remote data center. The main control circuit board is integrated with a communication module, which can be a wireless communication module, such as an NB-IOT communication module or an LoRa wireless communication module, or a wired communication module. Preferably, the communication module adopts an NB-IOT wireless communication module. The NB-IOT wireless communication module has the characteristic of low power consumption, so that the service life of the battery can be relatively long. The sampling circuit board 25 is installed in the mounting groove 2123, and is configured to collect a signal (pulse signal) detected by the hall sensor 24 and transmit the signal to the main control circuit board. In particular, the hall sensor 24 is mounted on the sampling circuit board 25, for example soldered on corresponding contacts of the sampling circuit board 25.
In the illustrated embodiment, the mounting groove 2123 has a card slot into which the sampling circuit board 25 is inserted to be fixedly mounted in the mounting groove 2123. This makes it possible, on the one hand, to facilitate the mounting of the sampling circuit board 25 and, on the other hand, to ensure that the hall sensor 24 is horizontally opposite the signaling magnet 22.
The distance between the auxiliary magnetic steel and the Hall sensor is related to the following factors: the magnetic force of the auxiliary magnetic steel, the magnetic force of the signaling magnetic steel and the opening threshold value of the Hall sensor. Usually, the distance between the auxiliary magnetic steel and the hall sensor is between 0.5 and 2 centimeters, and the distance is suitable for most hall sensors.
The transparent protective window of the existing water meter is usually toughened glass. However the utility model discloses a transparent protection window of intelligent water meter adoption transmission basic table can be made by other elastic transparent material that have, for example elastic plastic. Therefore, when the water meter is frozen at low temperature and the volume of the water meter is expanded, the water meter cannot be broken and leak water like tempered glass; the transparent material can not deform and extrude to damage the magnetic sensing module when the water meter freezes and expands like the magnetic sensing module.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides an intelligence water gauge sampling basic meter that sends out, its characterized in that, includes basic meter main part and sampling signaling device, sampling signaling device includes casing, signaling magnet steel, supplementary magnet steel, at least one hall sensor and circuit board, the casing is including being used for cup jointing the first portion in the basic meter main part and the second portion that is located first portion one side, signaling magnet steel is installed on the pointer of basic meter main part, supplementary magnet steel, at least one hall sensor and circuit board are all installed in the second portion, wherein, hall sensor is located basic meter main part side, with signaling magnet steel level is relative, supplementary magnet steel be located with signaling magnet steel is opposite the certain distance department of one side of hall sensor, and with signaling magnet steel acts on hall sensor's polarity is different, the circuit board is used for gathering the signal that hall sensor detected and conveying to remote data center.
2. The intelligent water meter sampling transmitting-based meter according to claim 1, wherein the circuit board comprises a main control circuit board and a sampling circuit board, the hall sensor is installed on the sampling circuit board, the sampling circuit board is used for collecting signals detected by the hall sensor and outputting the signals to the main control circuit board, and the main control circuit board is used for processing the signals input by the sampling circuit board and transmitting the signals to a remote data center.
3. The intelligent water meter sampling transmitting-based meter of claim 2, wherein the number of hall sensors is 2.
4. The intelligent water meter sampling transmitting base meter of claim 2, wherein a mounting groove for mounting the sampling circuit board is formed in the second portion of the housing.
5. The intelligent water meter sampling signal-transmitting base meter of claim 4, wherein an auxiliary magnetic steel mounting seat is provided on a side of the mounting groove away from the first portion.
6. The intelligent water meter sampling transmitting-based meter of claim 2, wherein the master control circuit board is provided with an NB-IOT communication module.
7. The intelligent water meter sampling transmitting-based meter according to claim 1, wherein the distance between the auxiliary magnetic steel and the hall sensor is 0.5-2 cm.
8. The intelligent water meter-like transmitting base meter of claim 1, wherein a cylindrical battery compartment is disposed in the second portion of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089316.7U CN209927214U (en) | 2019-07-12 | 2019-07-12 | Intelligent water meter sampling and signaling base meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089316.7U CN209927214U (en) | 2019-07-12 | 2019-07-12 | Intelligent water meter sampling and signaling base meter |
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| Publication Number | Publication Date |
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| CN209927214U true CN209927214U (en) | 2020-01-10 |
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| CN201921089316.7U Active CN209927214U (en) | 2019-07-12 | 2019-07-12 | Intelligent water meter sampling and signaling base meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231067A (en) * | 2019-07-12 | 2019-09-13 | 厦门市诺特科技发展有限公司 | A kind of intellectual water meter sampling sender base table |
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2019
- 2019-07-12 CN CN201921089316.7U patent/CN209927214U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231067A (en) * | 2019-07-12 | 2019-09-13 | 厦门市诺特科技发展有限公司 | A kind of intellectual water meter sampling sender base table |
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