CN109115293A - A kind of electronic counting-type water meter - Google Patents
A kind of electronic counting-type water meter Download PDFInfo
- Publication number
- CN109115293A CN109115293A CN201810974897.6A CN201810974897A CN109115293A CN 109115293 A CN109115293 A CN 109115293A CN 201810974897 A CN201810974897 A CN 201810974897A CN 109115293 A CN109115293 A CN 109115293A
- Authority
- CN
- China
- Prior art keywords
- module
- hall sensor
- magnetic
- sensor
- annular magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 230000001419 dependent effect Effects 0.000 claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 230000005389 magnetism Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 229910052742 iron Inorganic materials 0.000 claims 2
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 7
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241001269238 Data Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to water meter fields, and in particular to a kind of electronic counting-type water meter, including essentic-water-meter, power module, metering sampling module, data processing module, magnetic attack detection module, LCD MODULE and communication module；Essentic-water-meter includes pedestal and an impeller；Power module is powered to data processing module；Metering sampling module includes magneto-dependent sensor and annular magnet, and annular magnet is arranged on wheel rotation axis top；The one side of the pedestal opposite with annular magnet is arranged in magneto-dependent sensor, positioned at the surface of annular magnet, for by the reversal of magnetism signal of annular magnet be converted to electric signal；Magnetic attack detection module includes to the tetchy Hall sensor of magnetic N one, to the tetchy Hall sensor of magnetic S two, Hall sensor one and Hall sensor two are arranged outside pedestal, the present invention provide it is a kind of with measuring accuracy height, water meter long service life, high reliablity, measurement range is wide, thermal stability is high and water meter easy to maintain.
Description
Technical field
The present invention relates to water meter fields, and in particular to a kind of electronic counting-type water meter.
Background technique
Water meter is the instrument for measuring water flow, is the integrated flow measurement of water mostly, is generally divided into volumetric water meter and speed
Two class of degree formula water meter should first estimate the size and range of flow of used flow under normal conditions when selecting water meter specification.Existing rank
The water meter overwhelming majority used in section life remains as mechanical water meter, and mechanical water meter has inconvenience when in use, due to
Using great number of driving gear, in the lesser situation of water flow, flow number or stream are disregarded since the resistance of mechanical part will lead to
The phenomenon of meter amount inaccuracy；And will lead to mechanical part abrasion after long-time use makes the accuracy of measuring further by shadow
It rings；Mechanical water meter is not easy to find, is unfavorable for managing and safeguard when breaking down.Secondly intellectual water meter used at present, be
Sensing element is installed additional on original mechanical water meter, without departing from the traditional mode of original mechanical water meter, not from basic
On solve the above problems.
Summary of the invention
It is serious for mechanical part abrasion present in prior art problem, measuring accuracy is low and disregard flow technology lack
It falls into.The present invention provides a kind of new electronic counting-type water meter, which there is measuring accuracy height, water meter to use the longevity
Life length, high reliablity, measurement range is wide, thermal stability is high and performance easy to maintain.
The purpose of the present invention is achieved through the following technical solutions:
To solve above-mentioned technological deficiency, the present invention provides a kind of electronic counting-type water meter, including essentic-water-meter, power supply mould
Block, metering sampling module, data processing module, communication module and LCD MODULE；The essentic-water-meter includes pedestal, leaf
Wheel；The power module is powered to data processing module；The metering sampling module includes magneto-dependent sensor and annular magnet, institute
Annular magnet is stated to be arranged on wheel rotation axis top；The one of the pedestal opposite with annular magnet is arranged in the magneto-dependent sensor
Face, positioned at the surface of annular magnet, for the reversal of magnetism signal of the annular magnet to be converted to electric signal；The magnetic
Attack detection module includes to the tetchy Hall sensor of magnetic N one, to the tetchy Hall sensor of magnetic S two, the Hall
Sensor one and Hall sensor two are arranged outside pedestal；The data processing equipment is connect with liquid crystal display device, at data
Reason device is also connect with communication device；The communication module is communicated by Mbus, GPRS is communicated, one kind or more of NB-TOT communication
Kind transmits a signal to administrative center, and communication device is connect with data processing equipment serial ports.
As a further improvement, the longitudinal center line of the longitudinal center line of the pedestal and impeller shaft is the same as always
Line.
As a further improvement, magneto-dependent sensor >=2.
As a further improvement, the magneto-dependent sensor is tunnel magneto-resistive sensor, contactless tunnel magnetoresistive sensing
Device detects wheel rotation, substantially increases the sensitivity of flow detection.
As a further improvement, the output end of the magneto-dependent sensor is connect with the input terminal of data processing equipment,
The output end of the magnetic attack detection module and the input terminal of data processing module connect, the level shape that magneto-dependent sensor is exported
State correspondingly rotates circle number to be converted into water meter turbine, and then calculates the corresponding flow of water meter；Also achieve the positive and negative of water flow
Turn detection, solves the situation due to the geostrophic measuring accuracy shakiness of water flow.
As a further improvement, the Hall sensor one and Hall sensor two are bipolar latch-type magnetic switch sensing
Device, the Hall sensor one and Hall sensor two are used to detect external magnetic field, when external magnetic field strength is greater than hall sensing
When threshold value is arranged in device, Hall sensor one and Hall sensor two can generate impulse level signal.
As a further improvement, the data processing equipment is microprocessor.
As a further improvement, the annular magnet is the opposite ferrite lattice of a pair of of magnetic pole
Compared with prior art, the beneficial effects of the present invention are:
Effect one, the present invention use non-contacting magnetic field detection technology, avoid tradition machinery or magnetic reed switch uses
The problem of service life and anti-vibration are collided, using common dry-type meter base table part, eliminates traditional counting gear and magnetic red is opened
The easily worn parts such as pass, initial-flow of the invention is low, range ratio is wide, the pressure loss is small, it is big to cross current-carrying capacity, with existing scheme phase
Than being greatly improved in reliability and stability
Effect two, what the present invention can accurately measure water flow rotates and reverse water, even if in the case that meter instead fills,
User can correctly be read uses water information, there is magneto-dependent sensor when continuous several days of metric results and every few minutes
When the variation of state, then can determine that the water meter of the user, there are water leakage faults；
Effect three, the present invention by communication module can copy reading water amount information and user's water in real time exception information,
So that staff understands the use regimen condition of user in real time, while administrative center understands user according to the analysis to water data
Service condition, situations such as leak, magnetic disturbance are judged whether there is according to exception information content, reduce unnecessary loss, reach
To the purpose rationally managed；
Effect four, present invention employs contactless tunnel magneto-resistive sensors to detect wheel rotation, substantially increases flow
The sensitivity of detection；Using Hall sensor examine detection external magnetic field, avoid steathily water happen.
Detailed description of the invention
Fig. 1 is electronic counting-type water meter work flow diagram；
Fig. 2 is the structural schematic diagram of electronic counting-type water meter；
Fig. 3 is the output waveform diagram of two magneto-dependent sensors when impeller rotates forward；
Fig. 4 is the output waveform diagram of two magneto-dependent sensors when impeller inverts；
In figure, 1- pedestal, 2- Hall sensor one, 3- magneto-dependent sensor, 4- annular magnet, 5- rotation axis, 6- Hall biography
Sensor two, 7- impeller.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment
To solve above-mentioned technological deficiency, the present embodiment provides a kind of electronic counting-type water meters, as shown in Figure 1, being electrometer
Numerical expression water meter work flow diagram, including essentic-water-meter, power module, metering sampling module, data processing module, magnetic attack detecting
Module, LCD MODULE and communication module.Essentic-water-meter is the conversion of signal and the basis that acquisition provides, and power module is to number
It powers according to processing module, then the water flow signal of metering sampling module acquisition essentic-water-meter reaches this detection signal
Data processing module, which is changed into water data and is transmitted to display module by data processing module shows.Magnetic is attacked
It hits detection module and external magnetic field interference attack is converted into impulse level signal, the signal is then delivered to data processing mould
The signal is become warning message and the information is sent to data center by communication module by block, data processing module.Management
Department can be made a copy of by communication module copy reading water data, the place without staff to installation water meter.Essentic-water-meter
The lower half portion of watchcase, mechanical water meter machine core including mechanical water meter, lower half portion include and machine core top half
The annular magnet of transmission.Data processing unit includes microprocessor, use common micro-low power consumption MCU on the market.
As shown in Fig. 2, being the structural schematic diagram of electronic counting-type water meter, metering sampling module includes two magneto-dependent sensors
3,
The essentic-water-meter includes pedestal 1, impeller 7；The metering sampling module includes magneto-dependent sensor 3 and annular magnet
4；The annular magnet is arranged on 5 top of wheel rotation axis；Described two magneto-dependent sensors are arranged in opposite with annular magnet 4
The one side of pedestal 1, positioned at the surface of annular magnet, for the reversal of magnetism signal of the annular magnet 4 to be converted to electricity
Signal；The magnetic attack detection module includes to the tetchy Hall sensor of magnetic N 1, to the tetchy Hall sensor of magnetic S
26, the Hall sensor 1 and Hall sensor 26 are arranged outside pedestal, the hall sensing being arranged in right above pedestal 1
Device 1 and Hall sensor 26 are not influenced by annular magnet 4, their real-time detection external magnetic fields, when external magnetic field strength mistake
When will affect the normal work of magneto-dependent sensor 3 greatly, which can generate impulse level signal.The annular magnet 4
It is the magnet of Ferrite Material using the multipole magnetization magnet of two pairs of magnetic poles；Two magneto-dependent sensors are sensed using tunnel magnetoresistive
Device, it is best that two magneto-dependent sensors obtain effect when setting angle is 90 ° or 270 °；Hall sensor 1 and Hall sensor 26
It is all made of " bipolar latch-type magnetic switch " sensor, 180 ° of setting angle proper, and avoids in vertical direction and magnetosensitive
Sensor overlapping.
Specific operation process are as follows: water flow drives the impeller 5 in essentic-water-meter to rotate, and the drive of impeller 5 is mounted on the transmission of impeller 5
Annular magnet 4 on axis rotates synchronously, and forms periodically variable magnetic field；It will by the magneto-dependent sensor 3 being mounted on pedestal 1
Changing magnetic field signal is converted into corresponding electric signal and reaches data processing module, because the revolving speed and wheel speed of water flow are at just
Than unit volume water flows through, one fixing turn of wheel rotation, so the microprocessor in data processing module is to these periodicity
The data of variation are handled, and are obtained the circle number of wheel rotation, are then calculated the metric results of water meter.If there are strong magnetic for outside
Interference attack, then must have an output electric signal in Hall sensor 2, data processing module generates alarm signal after receiving the signal
Breath.External magnetic-field direction and intensity, two Hall sensors can be judged in the present invention according to the output level of Hall sensor
One of them is extremely sensitive to N, another is extremely sensitive to S, no matter external magnetic-field direction, as long as intensity reaches certain value,
It can produce alarm signal.
As shown in Figure 3 and Figure 4, the output waveform diagram of two magneto-dependent sensors when impeller rotates and reverse, the present invention
The direction of rotation of annular magnet in essentic-water-meter can be judged according to the output level of two magneto-dependent sensors.When annular magnet
When N grades of close magneto-dependent sensors, magneto-dependent sensor exports high level, is denoted as 1；When the S grade of annular magnet is close to magneto-dependent sensor
When, magneto-dependent sensor exports low level, is denoted as 0.Since two magneto-dependent sensors differ certain angle and annular magnet N, S
It the pole quartering and is alternately present, so that two magneto-dependent sensors export 4 shapes altogether when double magnetic pole annular magnets rotate a circle
State.When the impeller direction of rotation of water meter is to rotate forward, water meter turbine often rotates a circle, and can obtain 4 status datas, i.e., 00,01,
11,10；When the impeller direction of rotation of water meter is reversion, machine core often rotates a circle, and can obtain another group of 4 status datas, i.e., 00,
10,11,01；Data processing module is respectively to rotating and reverse carry out water consumption measurement；It finally rotates forward water consumption and subtracts reversion water
Amount, can be obtained actual used water amount.Conversely, then inverting water consumption when water pump composite is at opposite direction and subtracting rotating forward water consumption, obtain
To actual used water amount.It is thus achieved that forward and backward judgement and the accurate measurement of water.Meanwhile water amount information being delivered to.
Claims (8)
1. a kind of electronic counting-type water meter, which is characterized in that at essentic-water-meter, power module, metering sampling module, data
Manage module, magnetic attack detection module, communication module and LCD MODULE；
The essentic-water-meter includes pedestal (1), impeller (7)；The metering sampling module includes magneto-dependent sensor (3) and annular magnetic
Iron (4), the annular magnet are arranged on wheel rotation axis (5) top；Magneto-dependent sensor setting with annular magnet (4) phase
Pair pedestal (1) one side, positioned at the surface of annular magnet, for by the reversal of magnetism signal of the annular magnet (4)
Be converted to electric signal；The magnetic attack detection module includes to magnetic N tetchy Hall sensor one (2), tetchy to magnetic S
Hall sensor two (6), the Hall sensor one (2) and Hall sensor two (6) are arranged outside pedestal；
The power module is powered to data processing module.
The connection of the display port of the LCD MODULE and data processing module, the communication of communication module and data processing module
Port connection；
The communication module is communicated by Mbus, GPRS is communicated, the one or more of NB-TOT communication transmit a signal to management
Center, communication module are connect with data processing module serial ports.
2. according to claim 1, which is characterized in that the longitudinal center line of the pedestal (1) and impeller (7) transmission shaft
Longitudinal center line is in same straight line.
3. according to claim 1, which is characterized in that magneto-dependent sensor >=2.
4. according to claim 3, which is characterized in that the magneto-dependent sensor is tunnel magneto-resistive sensor.
5. according to claim 4, which is characterized in that the output end of the magneto-dependent sensor with data processing module
Input terminal connection, the output end of the magnetic attack detection module and the input terminal of data processing module connect.
6. according to claim 1, which is characterized in that the Hall sensor one (2) and Hall sensor two (6) are double
Pole latch-type magnetic switch sensor, the Hall sensor one (2) and Hall sensor two (6) are used to detect external magnetic field, when
When external magnetic field strength is greater than Hall sensor setting threshold value, Hall sensor one (2) and Hall sensor two (6) can generate arteries and veins
Rush level signal.
7. according to claim 1, which is characterized in that the data processing module is microprocessor.
8. according to claim 1, which is characterized in that the annular magnet (4) is the opposite ferrite magnetic of a pair of of magnetic pole
Iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974897.6A CN109115293A (en) | 2018-08-24 | 2018-08-24 | A kind of electronic counting-type water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974897.6A CN109115293A (en) | 2018-08-24 | 2018-08-24 | A kind of electronic counting-type water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109115293A true CN109115293A (en) | 2019-01-01 |
Family
ID=64860134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810974897.6A Pending CN109115293A (en) | 2018-08-24 | 2018-08-24 | A kind of electronic counting-type water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109115293A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987105A (en) * | 2019-11-29 | 2020-04-10 | 重庆前卫克罗姆表业有限责任公司 | Code counting method based on double-pulse sampling and gas meter |
| CN112197824A (en) * | 2020-09-27 | 2021-01-08 | 江阴市立信智能设备有限公司 | Direct-reading water meter based on Hall sensing coding and implementation method thereof |
| CN113834538A (en) * | 2020-06-24 | 2021-12-24 | 上海凡宜科技电子有限公司 | Electronic water meter |
| CN114877956A (en) * | 2022-05-31 | 2022-08-09 | 浙江威星智能仪表股份有限公司 | Electromechanical separation intelligent water meter |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203163780U (en) * | 2012-12-29 | 2013-08-28 | 天津开发区翔龙网络设备有限公司 | Bi-directional detection sensor assembly for intelligent water meter |
| CN103344295A (en) * | 2013-07-16 | 2013-10-09 | 湖南威铭能源科技有限公司 | Electronic water meter |
| CN203323808U (en) * | 2013-07-16 | 2013-12-04 | 湖南威铭能源科技有限公司 | Water meter measurement module |
| CN104330119A (en) * | 2014-11-20 | 2015-02-04 | 福建智恒软件科技有限公司 | Intelligent electronic water meter and metering method thereof |
| CN104990597A (en) * | 2015-07-27 | 2015-10-21 | 山东精量仪表股份有限公司 | Magnetic pulse electronic water meter |
| RU156181U1 (en) * | 2015-02-12 | 2015-11-10 | Николай Владимирович Шенгур | METHOD FOR MEASURING LIQUID FLOWS PROTECTED FROM UNAUTHORIZED ACCESS |
| CN205506154U (en) * | 2016-04-20 | 2016-08-24 | 智恒科技股份有限公司 | Magnetism pulse count sensor |
| CN108151816A (en) * | 2016-12-06 | 2018-06-12 | 辽宁思凯科技股份有限公司 | A kind of magnetic passes electronic water meter and its metering method |
| CN210108453U (en) * | 2018-08-24 | 2020-02-21 | 浙江万胜智能科技股份有限公司 | Electronic counting type water meter |
-
2018
- 2018-08-24 CN CN201810974897.6A patent/CN109115293A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203163780U (en) * | 2012-12-29 | 2013-08-28 | 天津开发区翔龙网络设备有限公司 | Bi-directional detection sensor assembly for intelligent water meter |
| CN103344295A (en) * | 2013-07-16 | 2013-10-09 | 湖南威铭能源科技有限公司 | Electronic water meter |
| CN203323808U (en) * | 2013-07-16 | 2013-12-04 | 湖南威铭能源科技有限公司 | Water meter measurement module |
| CN104330119A (en) * | 2014-11-20 | 2015-02-04 | 福建智恒软件科技有限公司 | Intelligent electronic water meter and metering method thereof |
| RU156181U1 (en) * | 2015-02-12 | 2015-11-10 | Николай Владимирович Шенгур | METHOD FOR MEASURING LIQUID FLOWS PROTECTED FROM UNAUTHORIZED ACCESS |
| CN104990597A (en) * | 2015-07-27 | 2015-10-21 | 山东精量仪表股份有限公司 | Magnetic pulse electronic water meter |
| CN205506154U (en) * | 2016-04-20 | 2016-08-24 | 智恒科技股份有限公司 | Magnetism pulse count sensor |
| CN108151816A (en) * | 2016-12-06 | 2018-06-12 | 辽宁思凯科技股份有限公司 | A kind of magnetic passes electronic water meter and its metering method |
| CN210108453U (en) * | 2018-08-24 | 2020-02-21 | 浙江万胜智能科技股份有限公司 | Electronic counting type water meter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987105A (en) * | 2019-11-29 | 2020-04-10 | 重庆前卫克罗姆表业有限责任公司 | Code counting method based on double-pulse sampling and gas meter |
| CN113834538A (en) * | 2020-06-24 | 2021-12-24 | 上海凡宜科技电子有限公司 | Electronic water meter |
| CN112197824A (en) * | 2020-09-27 | 2021-01-08 | 江阴市立信智能设备有限公司 | Direct-reading water meter based on Hall sensing coding and implementation method thereof |
| CN114877956A (en) * | 2022-05-31 | 2022-08-09 | 浙江威星智能仪表股份有限公司 | Electromechanical separation intelligent water meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109115293A (en) | A kind of electronic counting-type water meter | |
| US4265127A (en) | Low meter system provided with a pulse generator | |
| CN203163780U (en) | Bi-directional detection sensor assembly for intelligent water meter | |
| US20160084632A1 (en) | Tamper detection through magnetic sensing | |
| CN103344295B (en) | Electric water meter | |
| CN103278218B (en) | A kind of flow monitoring device for mechanical water meter | |
| CN107024252A (en) | It is a kind of resist strong magnetic disturbance without magnetic remote transmitting water meter | |
| CN204286507U (en) | A kind of water meter of electronic measurement of self power generation | |
| CN202614292U (en) | Intelligent fluid flow meter | |
| CN104990597A (en) | Magnetic pulse electronic water meter | |
| CN108426619B (en) | High-precision bidirectional metering electronic water meter | |
| CN203323817U (en) | Electronic water meter | |
| CN100359294C (en) | High voltage-resistant bi-directional elliptic gear flow meter | |
| CN203323808U (en) | Water meter measurement module | |
| CN207502010U (en) | Inside is equipped with the intellectual water meter of two-way detection sensor component | |
| CN204286504U (en) | A kind of water meter without Magnetic testi electronic measurement | |
| CN210108453U (en) | Electronic counting type water meter | |
| CN204831436U (en) | Rotatory detection device of diaphragm type gas table core | |
| CN203364901U (en) | Flow monitoring device used for mechanical water meter | |
| EP3783319B1 (en) | Flow meter | |
| KR100993254B1 (en) | Flowmeter | |
| CN208588421U (en) | High-precision bidirectional measuring electronic water meter | |
| KR100497224B1 (en) | Low Power-Consuming Flow Sensing System | |
| CN114383682A (en) | Internet of things water meter based on magnetoresistive sensor | |
| CN207163506U (en) | A kind of intelligent flow meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |