CN107167207A - Water meter device - Google Patents
Water meter device Download PDFInfo
- Publication number
- CN107167207A CN107167207A CN201710527675.5A CN201710527675A CN107167207A CN 107167207 A CN107167207 A CN 107167207A CN 201710527675 A CN201710527675 A CN 201710527675A CN 107167207 A CN107167207 A CN 107167207A
- Authority
- CN
- China
- Prior art keywords
- water meter
- water
- box body
- circuit board
- meter device
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 9
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 2
- 239000012173 sealing wax Substances 0.000 claims 1
- 230000008014 freezing Effects 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004078 waterproofing 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
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a kind of water meter device, including water pipe and for monitoring the water meter component of water flow in water pipe, water meter component includes the box body with opening being fixed on water pipe, it is articulated with box body and the enclosing cover of the opening can be covered, it is arranged at the circuit board in box body, it is arranged at the chip on circuit board and being connected electrically, electrically connected with circuit board and be inserted into the graphene flow sensor in water pipe, the display screen electrically connected in box body and with circuit board is arranged at, and is arranged at the outer hatch emergency release cock for covering and being electrically connected with circuit board.The water meter device that the present invention is provided, by setting box body loading circuit plate, chip and display screen on water pipe, and electrically connected by the graphene flow sensor stretched into water pipe with circuit board, so, it ensure that accurately measuring for water flow in water pipe, and user's account day freezing water quantity is realized, and the water meter installation cost is low, low in energy consumption.
Description
Technical field
It is to be related to a kind of water meter device more specifically the present invention relates to family water meter technical field.
Background technology
China is the country of a water resource famine, and more than 550 urban water shortages, stepped water pricing is used as the own nothing of state basic policy
Objection, but implementation stepped water pricing must obtain user's account day freezing water quantity.It is well known that current family is mechanical with water meter
The world of water meter, its cost is low, low precision, and be can be only achieved without the ability for freezing water consumption, it is necessary to install character wheel direct-reading device additional
Related request, causes with high costs and poor reliability.
At present, the all-electronin water meter of account day freezing water quantity is easily realized on the market mainly ultrasonic water meter and electromagnetic type water
Table, but such water meter all exist cost it is high (family with table 250 yuan/only more than), power consumption big (more than 2.5Ah/), family surveyed with table
The shortcomings of accuracy of measurement is poor, it is impossible to comprehensively into family.
The content of the invention
It is an object of the invention to provide a kind of water meter device, it is intended to solves in the prior art, existing easily to realize the account day
There is cost height, the technical problem that power consumption is big, measurement accuracy is poor in the all-electronin water meter of freezing water quantity.
The embodiments of the invention provide a kind of water meter device, including water pipe and for monitoring water flow in the water pipe
Water meter component, the water meter component includes the box body with opening being fixed on the water pipe, is articulated with the box body simultaneously
The enclosing cover of the opening can be covered, the circuit board in the box body is arranged at, is arranged on the circuit board and is connected electrically
Chip, electrically connected with the circuit board and be inserted into the graphene flow sensor in the water pipe, be arranged at the box body
Display screen that is interior and being electrically connected with the circuit board, and be arranged at it is described it is outer cover and with uncapping that the circuit board is electrically connected
Switch.
Further, the water meter device also includes the data-interface for being used to be connected with meter-copy device, and the data-interface is set
It is placed on the circuit board and is connected electrically.
Further, external tapping is offered on the box body, the external tapping, which is located on the box body, is right against the number
According to the position of interface.
Further, the water meter device also includes the wireless communication module for being used to be connected with external device communication, described
Wireless communication module is arranged on the circuit board and is connected electrically.
Further, have on the side wall of the water pipe and installation lid is provided with detection mouth, the detection mouth, it is described to install
Base portion is connected with the mounting seat being arranged in the detection mouth and stretch into the water pipe, and the graphene flow sensor connects
It is connected in the mounting seat.
Further, the water meter device also includes wire, and one end of the wire is connected to the graphene flow and passed
Sensor, the other end of the wire is stretched into the box body after lid and electrically connected with the circuit board through described install.
Further, sealing ring is arranged with the mounting seat, the sealing ring seals the mounting seat and the detection
Gap between mouthful.
Further, lid is additionally provided with the box body, the display screen is fixed on the upper lid；It is described it is upper lid with
The box body, which is enclosed, is formed with accommodating cavity, and the circuit board is located in the accommodating cavity.
Further, it is provided with the power supply electrically connected with the circuit board in the box body.
Further, it is coated with underwater paint on the circuit board surface.
Based on above-mentioned technical proposal, compared with prior art, the water meter device that the embodiment of the present invention is proposed, by water pipe
Upper setting box body loading circuit plate, chip and display screen, and by stretching into graphene flow sensor and circuit board in water pipe
Electrical connection, so, it is ensured that water flow is accurately measured in water pipe, and realizes user's account day freezing water quantity, and the water
Meter apparatus cost is low, low in energy consumption.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the decomposition texture schematic diagram for the water meter device that the embodiment of the present invention is proposed；
Fig. 2 is the control schematic diagram for the water meter device that the embodiment of the present invention is proposed.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.
In addition, it should also be noted that, the orientation or position relationship of the instruction such as left and right, upper and lower in the embodiment of the present invention
For based on orientation shown in the drawings or position relationship, be for only for ease of description the present invention and simplify description, rather than indicate or
Specific orientation must be had, with specific azimuth configuration and operation by implying the device or element of meaning, therefore it is not intended that
Limitation of the present invention.
In addition, the term " first ", " second " in the embodiment of the present invention are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " are defined
One or more this feature can be expressed or be implicitly included to feature.In the description of the invention, the implication of " multiple "
It is two or more, unless otherwise specifically defined.The realization of the present invention is carried out below in conjunction with specific embodiment
Detailed description.
As shown in Fig. 1 to 2, the embodiment of the present invention proposes a kind of water meter device, and the water meter device includes water pipe 1 and water meter
Component 2, water pipe 1 is used in the pipeline of registering one's residence of accessing user, and water meter component 2 is used for the stream for monitoring the current flowed through in the water pipe 1
Amount.Specifically, the water meter component 2 may include box body 21, enclosing cover 22, circuit board 23, chip 24, graphene flow sensor 25,
Display screen 26 and hatch emergency release cock 27, box body 21 are fixed on water pipe 1, and circuit board 23 is arranged in the box body 21, and chip 24 is set
On circuit board 23 and it is connected electrically, display screen 26 is preferably liquid crystal display, the display screen 26 is also disposed in the box body 21 simultaneously
Electrically connected with circuit board 23.In addition, the top of the box body 21 has an opening, enclosing cover 22 is articulated with the box body 21 and can covered
The opening, hatch emergency release cock 27 is arranged on enclosing cover 22 and electrically connected with circuit board 23.In addition, the graphene flow sensor 25 is excellent
Elect graphene net flow sensor as, the graphene flow sensor 25 is inserted into water pipe 1 and electrically connected with circuit board 23.
In the present invention, when the water meter device works, chip 24 enters working condition, and graphene flow sensor 25 is intermittently powered,
Simultaneously by gathering the parameter of graphene flow sensor 25, chip 24 is according to collection value, with correlation formula and coefficient (school when dispatching from the factory
It is accurate) outflow is calculated, it is integrated and obtains water consumption, accumulation water is more than 0.0001 cubic inch toward the FLASH in the chip 24
Preserve a sub-value.When receive hatch emergency release cock 27 uncap signal when, light the backlight of display screen 26 and show real-time water consumption.Herein,
Chip 24 can refer to prior art acquisition.The present invention on water pipe 1 by setting the loading circuit plate 23 of box body 21, chip 24 and showing
Display screen 26, and electrically connected by the graphene flow sensor 25 stretched into water pipe 1 with circuit board 23, it is ensured that the reclaimed water of water pipe 1
Accurately measuring for flow is flowed, and realizes user's account day freezing water quantity, and the water meter installation cost is low, low in energy consumption.
Further, in one embodiment of this invention, above-mentioned water meter device also includes being used for meter-copy device (in accompanying drawing not
Draw) data-interface 231 of connection, the data-interface 231 is arranged on foregoing circuit plate 23 and is connected electrically.Herein, should
Data-interface 231 is preferably USB interface, and user connects the interface and meter-copy device by data wire, and by opening above-mentioned enclosing cover
22 realize that hatch emergency release cock 27 is opened, and water usage data can be transferred in meter-copy device, so complete meter reading.In addition, can also lead to
Cross the data-interface 231 to be electrically connected with external power source, be that whole water meter device is powered by external power source.Certainly,
According to actual conditions and real needs, in other embodiments of the invention, water usage data can be also exported by other means,
It can be also powered by other means for whole water meter device, not make unique restriction herein.
Further, in one embodiment of this invention, external tapping 210 is offered on the above-mentioned side wall of box body 21, this is external
Mouth 210 is located at the position just to above-mentioned data-interface 231 on box body 21.User connects meter-copy device by data wire one end, another
End is through the external tapping 210 and accesses data-interface 231 and realizes data cube computation.
Further, in one embodiment of this invention, above-mentioned water meter device also includes being used for and external equipment channel radio
Believe the wireless communication module (being not drawn into accompanying drawing) of connection, the wireless communication module is arranged on foregoing circuit plate 23 and electric with it
Connection.Herein, the wireless communication module can be the communication mould such as infrared, RF, bluetooth, zigbee, NB-lot, RS485, MBus
Block, its can conveniently carry out data remote copying and parameter it is remotely located, also can easily access four tables unification etc it is each
Plant platform of internet of things.
Further, in one embodiment of this invention, there is detection mouth 10, the detection mouth on the side wall of above-mentioned water pipe 1
Installation lid 28 is provided with 10, the bottom of the installation lid 28 is connected with mounting seat 29, and the mounting seat 29 is arranged in detection mouth 10
And stretch into water pipe 1.Above-mentioned graphene flow sensor 25 is connected in the mounting seat 29.Herein, it is arranged with mounting seat 29
Sealing ring 291, the gap between the sealed installing seat 29 of sealing ring 291 and detection mouth 10.Certainly, in other implementations of the present invention
In example, graphene flow sensor 25 can be also placed in water pipe 1 by other means, not make unique restriction herein.
Further, in one embodiment of this invention, above-mentioned water meter device also includes being used to electrically connect above-mentioned graphene
The wire (being not drawn into accompanying drawing) of flow sensor 25 and foregoing circuit plate 23, herein, above-mentioned installation lid 28 and mounting seat 29 are
Hollow, one end of wire is connected to graphene flow sensor 25, and the other end of the wire passes through mounting seat 29 and installed
Stretch into above-mentioned box body 21 and electrically connected with circuit board 23 after lid 28.Certainly, according to actual conditions and real needs, in the present invention
Other embodiment in, graphene flow sensor 25 and circuit board 23 can be also electrically connected by other means, is not made herein only
One limits.
Further, in one embodiment of this invention, lid 211, above-mentioned display screen are additionally provided with above-mentioned box body 21
26 are fixed on this on lid 211；Lid 211 encloses with box body 21 and is formed with accommodating cavity 20 on this, foregoing circuit plate 23 and setting
Miscellaneous part thereon is respectively positioned in the accommodating cavity 20.
Further, in one embodiment of this invention, above-mentioned water meter device may also include power supply M, and power supply M is preferably
Disposable lithium cell, power supply M is arranged in the accommodating cavity 20 of above-mentioned box body 21, and electrically connected with foregoing circuit plate 23.Certainly,
Can be also whole water meter device by other means in other embodiments of the invention according to actual conditions and real needs
It is powered, does not make unique restriction herein.
Further, in one embodiment of this invention, it is coated with underwater paint on the surface of foregoing circuit plate 23.Pass through spray
Apply underwater paint so that circuit board 23 possesses moistureproof and waterproof function, it is to avoid because wet water causes the short circuit of circuit and damages, improve
Device lifetime.Certainly, according to actual conditions and real needs, in other embodiments of the invention, its other party can also be passed through
Formula carries out water-proofing treatment, does not make unique restriction herein.
For water meter device proposed by the present invention, it has two kinds of working conditions, specific as follows：
One kind is, by data-interface 231, and outside provides power supply, now, and the disposable lithium cell in box body 21 is (i.e. electric
Source M) do not power.In this case, chip 24 is operated in normal condition, and once per second is powered to graphene flow sensor 25,
The parameter of graphene flow sensor 25 is gathered simultaneously, is seen whether its parameter changes, if changing, acquisition rate is brought up to per second
It is secondary, and according to collection value, calculate outflow with correlation formula and coefficient (being calibrated when dispatching from the factory), be integrated and obtain water consumption,
Accumulation water is more than 0.0001 cubic inch, and the FLASH toward chip 24 preserves a sub-value.When the signal of uncapping for receiving hatch emergency release cock 27
When, light the backlight of display screen 26 and show real-time water consumption 30 seconds.When receiving the order that data-interface 231 is transmitted, receive
Real-time water is copied and accepted, monthly freezes the orders such as water consumption, key change table number, date/time, meter reading day setting in 1 year and answers
Answer.Usually, related setting task is performed according to RTC clock in chip 24.
Another to be, outside does not provide power supply, now, is powered in box body 21 by disposable lithium cell (i.e. power supply M).Herein
In state, chip 24 is operated in micro energy lose state, it is per second it is secondary powered to graphene flow sensor 25, while gathering graphene
The parameter of flow sensor 25, sees whether its parameter changes, if changing, and acquisition rate brought up into once per second, and according to adopting
Set value, calculates outflow with correlation formula and coefficient (being calibrated when dispatching from the factory), is integrated and obtains water consumption, accumulation water exceedes
0.0001 cubic inch, the FLASH toward chip 24 preserves a sub-value.When receive hatch emergency release cock 27 uncap signal when, make display screen
26 show real-time water consumption 10 seconds, and response daily uncaps display no more than 10 times.It is not responding to the life that any data-interface 231 is transmitted
Order, but usually perform related setting task according to RTC clock in chip 24.Herein, 3400mAh disposable lithium cell, it is contemplated that can
Worked 8 years without dispatch from foreign news agency, its service life meets demand.
The water meter device proposed based on above-mentioned technical proposal, the embodiment of the present invention, its measurement accuracy can reach B grades of water meter water
Flat, far above mechanical water meter, and its cost is less than direct reading character mechanical water meter, the ultrasonic water meter carried out now, due to the water
Device is few in meter apparatus so that product reliability is high.
Embodiment described above, the only specific embodiment of the invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, various equivalent repair can be readily occurred in
Change, replace and improve etc., these modifications, replacement and improvement should be all included within the scope of the present invention.Therefore, this hair
Bright protection domain should be defined by scope of the claims.
Claims (10)
1. water meter device, including water pipe and the water meter component for monitoring water flow in the water pipe, it is characterised in that described
Water meter component includes the box body with opening being fixed on the water pipe, is articulated with the box body and can cover the opening
Enclosing cover, be arranged at the circuit board in the box body, be arranged at the chip on the circuit board and being connected electrically, with the electricity
Road plate electrically connects and is inserted into the graphene flow sensor in the water pipe, be arranged in the box body and with the circuit board
The display screen of electrical connection, and it is arranged at the outer hatch emergency release cock for covering and being electrically connected with the circuit board.
2. water meter device as claimed in claim 1, it is characterised in that the water meter device also includes being used to be connected with meter-copy device
Data-interface, the data-interface is arranged on the circuit board and is connected electrically.
3. water meter device as claimed in claim 2, it is characterised in that external tapping, the external tapping are offered on the box body
The position of the data-interface is right against on the box body.
4. water meter device as claimed in claim 1, it is characterised in that the water meter device also includes being used to lead to external equipment
Believe the wireless communication module of connection, the wireless communication module is arranged on the circuit board and is connected electrically.
5. the water meter device as described in any one of claim 2 to 4, it is characterised in that there is detection on the side wall of the water pipe
Mouthful, be provided with installation lid in the detection mouth, installation base portion be connected be arranged in the detection mouth and stretch into it is described
Mounting seat in water pipe, the graphene flow sensor is connected in the mounting seat.
6. water meter device as claimed in claim 5, it is characterised in that the water meter device also includes wire, the wire
One end is connected to the graphene flow sensor, and the other end of the wire is stretched into the box body after being covered through the installation
And electrically connected with the circuit board.
7. water meter device as claimed in claim 5, it is characterised in that sealing ring, the sealing are arranged with the mounting seat
Circle seals the gap between the mounting seat and the detection mouth.
8. water meter device as claimed in claim 5, it is characterised in that lid, the display screen are additionally provided with the box body
It is fixed on the upper lid；The upper lid is enclosed with the box body is formed with accommodating cavity, and the circuit board is located at the accommodating cavity
It is interior.
9. the water meter device as described in any one of Claims 1-4, it is characterised in that be provided with the box body and the electricity
The power supply of road plate electrical connection.
10. the water meter device as described in any one of Claims 1-4, it is characterised in that be coated with the circuit board surface anti-
Sealing wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527675.5A CN107167207B (en) | 2017-06-30 | 2017-06-30 | Water meter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527675.5A CN107167207B (en) | 2017-06-30 | 2017-06-30 | Water meter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107167207A true CN107167207A (en) | 2017-09-15 |
| CN107167207B CN107167207B (en) | 2023-08-22 |
Family
ID=59827597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527675.5A Active CN107167207B (en) | 2017-06-30 | 2017-06-30 | Water meter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167207B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627626A (en) * | 2018-05-24 | 2018-10-09 | 湖南国盛石墨科技有限公司 | A kind of water purity detecting device with graphene |
| CN115527502A (en) * | 2022-08-04 | 2022-12-27 | 浙江迪元仪表有限公司 | Infrared induction-based intelligent water meter backlight control system and method |
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| CN203489925U (en) * | 2013-09-02 | 2014-03-19 | 佛山市广华合志科技有限公司 | Passive intelligent water meter |
| CN103985197A (en) * | 2014-04-18 | 2014-08-13 | 东莞市新弘高科智能仪表有限公司 | Prepaid intelligent water meter system |
| EP2848591A1 (en) * | 2013-09-09 | 2015-03-18 | Paul Van Welden | Process and apparatus for the treatment of fluids by means of electrical induction |
| CN205785397U (en) * | 2016-07-06 | 2016-12-07 | 泰安市智慧能源科技有限公司 | A kind of electronic long-distance transmission heavy-caliber intelligent water meter |
| CN106225858A (en) * | 2016-08-01 | 2016-12-14 | 吉林吉大地球科学与地质开发股份有限公司 | A kind of based on graphene nano material as the liquid volume flow measurement apparatus of detecting electrode |
| CN206876242U (en) * | 2017-06-30 | 2018-01-12 | 深圳龙电电气股份有限公司 | Water meter device |
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2017
- 2017-06-30 CN CN201710527675.5A patent/CN107167207B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203489925U (en) * | 2013-09-02 | 2014-03-19 | 佛山市广华合志科技有限公司 | Passive intelligent water meter |
| EP2848591A1 (en) * | 2013-09-09 | 2015-03-18 | Paul Van Welden | Process and apparatus for the treatment of fluids by means of electrical induction |
| CN103985197A (en) * | 2014-04-18 | 2014-08-13 | 东莞市新弘高科智能仪表有限公司 | Prepaid intelligent water meter system |
| CN205785397U (en) * | 2016-07-06 | 2016-12-07 | 泰安市智慧能源科技有限公司 | A kind of electronic long-distance transmission heavy-caliber intelligent water meter |
| CN106225858A (en) * | 2016-08-01 | 2016-12-14 | 吉林吉大地球科学与地质开发股份有限公司 | A kind of based on graphene nano material as the liquid volume flow measurement apparatus of detecting electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627626A (en) * | 2018-05-24 | 2018-10-09 | 湖南国盛石墨科技有限公司 | A kind of water purity detecting device with graphene |
| CN115527502A (en) * | 2022-08-04 | 2022-12-27 | 浙江迪元仪表有限公司 | Infrared induction-based intelligent water meter backlight control system and method |
| CN115527502B (en) * | 2022-08-04 | 2024-04-05 | 浙江迪元仪表有限公司 | Intelligent water meter backlight control system and method based on infrared induction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107167207B (en) | 2023-08-22 |
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Address after: 518000 Guangdong city of Shenzhen province Nanshan District Nanyou 107 first industrial zone 3 Applicant after: Shenzhen Longdian Huaxin Holding Group Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Nanyou 107 first industrial zone 3 Applicant before: SHENZHEN LONDIAN ELECTRICS Co.,Ltd. |
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Effective date of registration: 20230714 Address after: 518000 5 T2, South District, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Applicant after: Ma Jian Address before: 518000 Nanshan Nanyou No.1 Industrial Zone, Shenzhen, Guangdong Province, 107 buildings and 3 floors Applicant before: Shenzhen Longdian Huaxin Holding Group Co.,Ltd. |
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Effective date of registration: 20240201 Address after: 518000 Nanshan Nanyou No.1 Industrial Zone, Shenzhen, Guangdong Province, 107 buildings and 3 floors Patentee after: Shenzhen Longdian Huaxin Holding Group Co.,Ltd. Country or region after: China Address before: 518000 5 T2, South District, Nanshan District hi tech Industrial Park, Shenzhen, Guangdong Patentee before: Ma Jian Country or region before: China |