CN212692975U - No magnetism detection device of NB water gauge - Google Patents
No magnetism detection device of NB water gauge Download PDFInfo
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- CN212692975U CN212692975U CN202021360203.9U CN202021360203U CN212692975U CN 212692975 U CN212692975 U CN 212692975U CN 202021360203 U CN202021360203 U CN 202021360203U CN 212692975 U CN212692975 U CN 212692975U
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- 238000001514 detection method Methods 0.000 title claims abstract description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 230000005389 magnetism Effects 0.000 title claims description 10
- 238000005070 sampling Methods 0.000 claims abstract description 29
- 230000005284 excitation Effects 0.000 claims abstract description 26
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 claims description 15
- 101100348617 Candida albicans (strain SC5314 / ATCC MYA-2876) NIK1 gene Proteins 0.000 claims description 15
- 101100234408 Danio rerio kif7 gene Proteins 0.000 claims description 15
- 101100221620 Drosophila melanogaster cos gene Proteins 0.000 claims description 15
- 101100007329 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) COS1 gene Proteins 0.000 claims description 15
- 101100007330 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) COS2 gene Proteins 0.000 claims description 15
- 101100398237 Xenopus tropicalis kif11 gene Proteins 0.000 claims description 15
- 150000003071 polychlorinated biphenyls Chemical class 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a water meter impeller detection technical field, in particular to a NB water meter non-magnetic detection device, a sampling impeller is a circular plastic disc which can be rotatably arranged in a detection area of the NB water meter, a multilayer PCB with the same radius as the sampling impeller is pasted on the sampling impeller, and a resonance circuit is arranged on the multilayer PCB; the sampling impeller is arranged on the sampling device, the sampling impeller is arranged on the sampling impeller, the control circuit board is provided with a control chip and a circuit, the control circuit board is provided with a detection coil and an excitation coil, the detection coil and the excitation coil are arranged in a circular area on the control circuit board, and the radius of the circular area is the same as that of the sampling impeller. The utility model has the advantages that: simple structure, the cost is reduced possesses the characteristics that the precision is high.
Description
Technical Field
The utility model relates to a water gauge impeller detects technical field, in particular to NB water gauge does not have magnetism detection device.
Background
In the prior art, the NB-IOT water meter has a remote transmission function, a meter reading person does not need to manually read the meter from home to home, and the reading of the water meter can be read and remotely transmitted to a computer only by a sensor arranged on the meter. The general water meter has the working principle that a flow detection device in the water meter is pushed by water flow, and the flow detection device drives a transmission device to enable an indicating pointer to rotate. The number of revolutions can be calculated and recorded by detecting the change in the angle of rotation. The rotation of the detection pointer usually adopts sensors such as a Hall sensor, a reed switch, a non-magnetic sensor and the like, but the existing sensors have the defects of complex structure, higher cost and low precision.
For this reason, this application has designed a novel no magnetism detection device of NB water gauge to solve above-mentioned problem.
Disclosure of Invention
The utility model discloses a remedy among the prior art water gauge impeller and detect the lower not enough of the higher precision of cost, provide a NB water gauge does not have magnetism detection device.
The utility model discloses a realize through following technical scheme:
the utility model provides a no magnetism detection device of NB water gauge, includes the sampling impeller, its characterized in that:
the sampling impeller is a circular plastic disc which can be rotatably arranged in a detection area of the NB water meter, a plurality of layers of PCBs with the same radius as the sampling impeller are adhered on the sampling impeller, and a resonant circuit is arranged on the plurality of layers of PCBs;
the sampling impeller's top is provided with the control scheme board, is equipped with control chip and circuit on the control scheme board, lay detection coil and excitation coil on the control scheme board, circular region on the control scheme board is laid to detection coil and excitation coil, and the radius in circular region is the same with the radius of sampling impeller.
Further, for better realization the utility model discloses, resonant circuit comprises first resonance inductance, second resonance inductance and resonance electric capacity parallel connection, has 60 contained angles between first resonance inductance and the second resonance inductance.
Further, for better realization the utility model discloses, the detection coil includes SIN1 detection coil, SIN2 detection coil, COS1 detection coil and COS2 detection coil, and wherein SIN1 detection coil and SIN2 detection coil are located the front of control scheme board, and COS1 detection coil and COS2 detection coil are located the back of control scheme board.
Further, for better realization the utility model discloses, be 180 angle interval between SIN1 detection coil and the SIN2 detection coil, be 180 angle interval between COS1 detection coil and COS2 detection coil, be 90 angle interval between SIN1 detection coil and COS1 detection coil, be 90 angle interval between SIN2 detection coil and the COS2 detection coil.
Further, for better realization the utility model discloses, excitation coil is including setting up at the positive front coil of control scheme board and setting up the back coil at the control scheme board back, and front coil and back coil pass through the via hole connection on the control scheme board.
Based on no magnetism detection device of above-mentioned NB water gauge, its detection method is:
s1, the excitation signal generates resonance in the resonance circuit through the excitation coil;
s2, removing the excitation signal and measuring the induced voltage generated in the induction coil by the resonant circuit:
and S3, calculating the impeller angle through the control chip.
Further, for better realization the utility model discloses, S1 specifically is, during operation, regularly applys excitation pulse on excitation coil, and excitation coil produces magnetic field, produces the oscillation in the resonant circuit that first resonance inductance, second resonance inductance and resonance electric capacity constitute.
Further, for better realization the utility model discloses, S2 specifically is:
s21, after the excitation pulse is cancelled, the magnetic field generated by the resonance circuit can generate induced voltage in the SIN1 detection coil, the SIN2 detection coil, the COS1 detection coil and the COS2 detection coil;
s22, when the impeller rotates, the angle of the detection coil relative to the resonance magnetic field changes, and different induced voltages are generated at different angles;
and S23, measuring the induction voltage generated by the SIN1 detection coil, the SIN2 detection coil, the COS1 detection coil and the COS2 detection coil in real time.
Further, for better realization the utility model discloses, S3 specifically does, and the rotation angle of impeller is calculated through the induced voltage of measuring change in S2 to the treater among the control circuit, calculates the number of revolutions of impeller through the periodic variation of measuring the angle.
The utility model has the advantages that:
the utility model discloses an excitation coil produces the resonance in resonance circuit, then removes excitation signal, measures the induced voltage that resonance circuit produced in induction coil, calculates the impeller angle through control chip, has replaced sensors such as hall, tongue tube, no magnetism that use in the traditional mode, simple structure, the cost is reduced, the utility model discloses a detection method possesses the characteristics that the precision is high.
Drawings
Fig. 1 is a sampling schematic diagram of the NB water meter non-magnetic detection device of the present invention;
fig. 2 is a schematic plan structure view of a sampling impeller of the NB water meter non-magnetic detection device of the present invention;
fig. 3 is a schematic front structural view of a control circuit board of the NB water meter non-magnetic detection device of the present invention;
fig. 4 is a schematic view of a back structure of a control circuit board of the NB water meter non-magnetic detection device of the present invention;
fig. 5 is the utility model discloses NB water gauge does not have magnetism detection device's detection method flow chart.
In the figure, the position of the upper end of the main shaft,
1. the device comprises a sampling impeller, 2, a plurality of layers of PCBs, 3, a first resonant inductor, 4, a second resonant inductor, 5, a resonant capacitor, 6, an SIN1 detection coil, 7, a front coil, 8, an SIN2 detection coil, 9, a COS1 detection coil, 10, a COS2 detection coil, 11 and a back coil.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the product of the present invention is usually placed in when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1-5 show an embodiment of the present invention, which is a NB water meter non-magnetic detection device and a detection method.
As shown in the sampling schematic diagram of fig. 1, the excitation signal resonates in the resonant circuit through the excitation coil, then the excitation signal is removed, the induced voltage generated in the induction coil by the resonant circuit is measured, and the impeller angle is calculated through the control chip.
As shown in fig. 2, the sampling impeller 1 is a circular plastic disk, the upper side of the sampling impeller is pasted with a plurality of layers of PCBs 2 having the same radius as the plastic disk, the plurality of layers of PCBs 2 are provided with a first resonant inductor 3, a second resonant inductor 4 and a resonant capacitor 5, and the first resonant inductor 3, the second resonant inductor 4 and the resonant capacitor 5 are connected in parallel to form a resonant circuit. An included angle of 60 degrees is formed between the first resonant inductor 3 and the second resonant inductor 4. A common water meter flow detection device drives a transmission device to enable a sampling impeller 1 to rotate, and the number of rotation turns represents the size of flow.
As shown in fig. 3 and 4, the control circuit board is provided with a control chip and a circuit, wherein a detection coil and an excitation coil are distributed on the control circuit board, the detection coil and the excitation coil are positioned in a circular area, the circular area is positioned above the sampling impeller, and the radius of the circular area is the same as that of the plastic disk of the impeller. The detection coils comprise an SIN1 detection coil 6 and an SIN2 detection coil 8, the detection coils are located on one surface of the control circuit board, COS1 detection coils 9 and COS2 detection coils 10 are distributed on the other surface of the control circuit board, and a coil 7 on the front surface of the control circuit board and a coil 11 on the back surface of the control circuit board are connected through a through hole in the control circuit board to form an excitation coil. Wherein 180 degree angular separation exists between the SIN1 detection coil 6 and the SIN2 detection coil 8, 180 degree angular separation exists between the COS1 detection coil 9 and the COS2 detection coil 10, 90 degree angular separation exists between the SIN1 detection coil 6 and the COS1 detection coil 9, and 90 degree angular separation exists between the SIN2 detection coil 8 and the COS2 detection coil 10.
As shown in fig. 5, the detection method of the present embodiment is: when the resonant inductor works, excitation pulses are applied to the excitation coil at fixed time, the excitation coil generates a magnetic field, and oscillation is generated in a resonant circuit formed by the first resonant inductor 3, the second resonant inductor 4 and the resonant capacitor 5. After the excitation pulse is cancelled, the magnetic field generated by the resonant circuit generates induced voltages in the SIN1 detection coil 6, the SIN2 detection coil 8, the COS1 detection coil 9 and the COS2 detection coil 10, and when the sampling impeller 1 rotates, the angles of the detection coils relative to the resonant magnetic field change, and different induced voltages are generated at different angles. The rotation angle of the impeller is calculated by a processor in the control circuit through measuring the induced voltage of the 4 groups of induction coils, and the rotation number of the impeller is calculated through measuring the periodic change of the angle.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. The utility model provides a no magnetism detection device of NB water gauge, includes sampling impeller (1), its characterized in that:
the sampling impeller (1) is a circular plastic disc which can be rotatably arranged in an NB water meter detection area, a plurality of layers of PCBs (2) with the same radius as the sampling impeller (1) are adhered to the sampling impeller (1), and a resonant circuit is arranged on the plurality of layers of PCBs (2);
the top of sampling impeller (1) is provided with the control scheme board, is equipped with control chip and circuit on the control scheme board, lay detection coil and excitation coil on the control scheme board, detection coil and excitation coil lay the circular region on the control scheme board, and the radius in circular region is the same with the radius of sampling impeller (1).
2. The NB water meter non-magnetic detection device of claim 1, characterized in that:
the resonant circuit is formed by connecting a first resonant inductor (3), a second resonant inductor (4) and a resonant capacitor (5) in parallel, and an included angle of 60 degrees is formed between the first resonant inductor (3) and the second resonant inductor (4).
3. The NB water meter non-magnetic detection device of claim 1, characterized in that:
the detection coils comprise an SIN1 detection coil (6), an SIN2 detection coil (8), a COS1 detection coil (9) and a COS2 detection coil (10), wherein the SIN1 detection coil (6) and the SIN2 detection coil (8) are located on the front face of the control circuit board, and the COS1 detection coil (9) and the COS2 detection coil (10) are located on the back face of the control circuit board.
4. The NB water meter non-magnetic detection device of claim 3, characterized in that:
180-degree angle intervals are formed between the SIN1 detection coil (6) and the SIN2 detection coil (8), 180-degree angle intervals are formed between the COS1 detection coil (9) and the COS2 detection coil (10), 90-degree angle intervals are formed between the SIN1 detection coil (6) and the COS1 detection coil (9), and 90-degree angle intervals are formed between the SIN2 detection coil (8) and the COS2 detection coil (10).
5. The NB water meter non-magnetic detection device of claim 1, characterized in that:
the exciting coil comprises a front coil (7) arranged on the front side of the control circuit board and a back coil (11) arranged on the back side of the control circuit board, and the front coil (7) and the back coil (11) are connected through a through hole in the control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360203.9U CN212692975U (en) | 2020-07-13 | 2020-07-13 | No magnetism detection device of NB water gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021360203.9U CN212692975U (en) | 2020-07-13 | 2020-07-13 | No magnetism detection device of NB water gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212692975U true CN212692975U (en) | 2021-03-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021360203.9U Active CN212692975U (en) | 2020-07-13 | 2020-07-13 | No magnetism detection device of NB water gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212692975U (en) |
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2020
- 2020-07-13 CN CN202021360203.9U patent/CN212692975U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A non-magnetic detection device for NB water meter Effective date of registration: 20220118 Granted publication date: 20210312 Pledgee: China Everbright Bank Ji'nan branch Pledgor: JINAN RICHNES ELECTRONIC Co.,Ltd. Registration number: Y2022370000014 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230214 Granted publication date: 20210312 Pledgee: China Everbright Bank Ji'nan branch Pledgor: JINAN RICHNES ELECTRONIC Co.,Ltd. Registration number: Y2022370000014 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A non-magnetic detection device for NB water meter Effective date of registration: 20230220 Granted publication date: 20210312 Pledgee: China Everbright Bank Ji'nan branch Pledgor: JINAN RICHNES ELECTRONIC Co.,Ltd. Registration number: Y2023370000039 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210312 Pledgee: China Everbright Bank Ji'nan branch Pledgor: JINAN RICHNES ELECTRONIC Co.,Ltd. Registration number: Y2023370000039 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A non-magnetic detection device for NB water meters Granted publication date: 20210312 Pledgee: China Everbright Bank Ji'nan branch Pledgor: JINAN RICHNES ELECTRONIC Co.,Ltd. Registration number: Y2024370000007 |