CN109269578A - A kind of intellectual water meter - Google Patents
A kind of intellectual water meter Download PDFInfo
- Publication number
- CN109269578A CN109269578A CN201811357698.7A CN201811357698A CN109269578A CN 109269578 A CN109269578 A CN 109269578A CN 201811357698 A CN201811357698 A CN 201811357698A CN 109269578 A CN109269578 A CN 109269578A
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- Prior art keywords
- resistance
- water meter
- counter
- gear
- intellectual water
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
-
- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention provides a kind of intellectual water meters, belong to field of mechanical technique, it solves the problems, such as that existing intellectual water meter using effect is poor.This intellectual water meter includes: ontology, and inside offers accommodating cavity；Impeller is embedded in accommodating cavity, and counter is equipped with above impeller, and counter is connected by central gear with impeller, and counter side is provided with worm gear shaft, and worm gear shaft bottom is arranged with the induction gear being connected with central gear, is equipped with magnet steel on induction gear；Sense connector, partially protrude into accommodating cavity, the Hall sensor IC being correspondingly arranged with magnet steel is installed on sensing connector, and Hall sensor IC is matched with the magnet steel that subsidiary induction gear rotates and Hall circuit is connected, the output end of Hall circuit transmits signals to metering single-chip microcontroller；Anti- magnetic sheet, is connected on counter, and above-mentioned sensing connector passes through anti-magnetic sheet and extends to above induction gear；Protective cover is fastened and connected above counter and with ontology.The present invention has the characteristics that using effect is good.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of intellectual water meter, especially a kind of intelligent water that can precisely measure
Table.
Background technique
Water meter in the market is widely used various intelligent water meters, and the products such as water meter reading system also start to rise,
It is worked based on electromagnetism or electrical principles, different from traditional mechanical water meter, intellectual water meter electricity is often used at present
Magnetic flowmeter or ultrasonic flowmeter or electronic flow sensor are operated.
At work, water flow is by water meter inner cavity, and the impeller assembly with magnet ring generates rotation, with electricity for general intelligence water meter
The moving link that subflow quantity sensor is embedded with magnet ring is reached under non-contacting state to be coupled and synchronous rotary, and magnetic field amount is generated
Variation, to accurately obtain electronic signal by sensing element, and signal is connected to the control circuit.Control circuit is to signal
Calculation processing is carried out, realizes the purpose of metering.
In addition to this, existing intellectual water meter matches wireless remote function, by data acquisition concentrator, transmission network and
Computer system after converting signal, is dynamically acquired and is stored by data collector, then focused in corresponding system,
Unified processing is carried out by computer software, i.e., continuous data is transformed into wireless radio frequency modules, realizes wireless remote transmission
Function, to achieve the purpose that management of the use of water.
But since the magnetic field generated in water meter will affect the data of flowmeter, long-time service be easy to cause water meter degree inaccurate
Really, or occur phenomena such as leak, being unfavorable for normal use.
In conclusion to solve the deficiency in existing intellectual water meter structure, the present invention devise it is a kind of it is structurally reasonable, make
With the good intellectual water meter of effect.
Summary of the invention
The present invention in order to solve the problems existing in the prior art, provides a kind of intelligent water structurally reasonable, using effect is good
Table.
The purpose of the present invention can be achieved through the following technical solutions: a kind of intellectual water meter, comprising:
Ontology, inside offer accommodating cavity, and ontology side offers the mounting hole with accommodating cavity connection；
Impeller is embedded in accommodating cavity, and counter is equipped with above impeller, and the counter passes through central gear and impeller
It is connected, counter side is provided with worm gear shaft, and worm gear shaft bottom is arranged with the induction gear being connected with central gear, incudes tooth
Magnet steel is installed on wheel；
Connector is sensed, penetrating mounting holes simultaneously partially protrude into accommodating cavity, sense to be equipped on connector and are correspondingly arranged with magnet steel
Hall sensor IC, and Hall sensor IC is matched with the magnet steel that subsidiary induction gear rotates and Hall circuit is connected, suddenly
You transmit signals to metering single-chip microcontroller by the output end of circuit；
Anti- magnetic sheet, is connected on counter, and above-mentioned sensing connector passes through anti-magnetic sheet and extends to above induction gear；
Protective cover is fastened and connected above counter and with ontology, glass is also equipped between protective cover and counter
Glass plate.
As the further improvement of this case, the anti-magnetic sheet includes base portion, offers on base portion and passes through for sensing connector
Through-hole, two sides bending extends to form two clamping portions to base portion up and down, and two clamping portions are respectively engaged on worm gear shaft and induction gear position
Between both sides.
Another step as this case is improved, and is outward extended with protection department, isolation part, the isolation respectively at left and right sides of base portion
Portion is bent towards worm gear shaft to be arranged, and protection department side is provided with several zigzag sections.
As the further improvement of this case, reinforcing rib is respectively set at left and right sides of base portion.
Another step as this case is improved, and sensing connector is made close to the position of Hall sensor IC of pure iron.
As the further improvement of this case, several transmission shafts are installed in counter, are arranged with biography on each transmission shaft
Moving gear, each transmission gear are successively engaged, and two transmission gears of head and the tail are mutually nibbled with central gear, induction gear respectively
It closes.
As this case another step improve, worm gear shaft, each gear shaft top be fixed with pointer.
As the further improvement of this case, the pin 1 of Hall sensor IC is grounded, and pin 3 is connect with supply voltage VCC,
The one end resistance R1 is connect with pin 3, and the other end is as output end, and pin 2 is connect with output end, the one end capacitor C1 and power supply electricity
Press VCC connection, other end ground connection.
Another step as this case is improved, and the pin 1 of Hall sensor IC is grounded, and pin 3 is connect with supply voltage VCC,
It is connected with capacitor C2 on supply voltage VCC and capacitor C2 is grounded, has been sequentially connected in series resistance R2, resistance R3, and resistance R3 on pin 2
It is connect with supply voltage VCC, the both ends resistance R2 are parallel with capacitor C3, and resistance R2 is output end close to the one end resistance R3.
As the further improvement of this case, the pin 1 of Hall sensor IC is grounded, and pin 3 is connect with supply voltage VCC,
It is connected with capacitor C4 on supply voltage VCC and capacitor C4 is grounded, has been sequentially connected in series resistance R4, resistance R5, and resistance R5 on pin 2
It is connect with supply voltage VCC, the both ends resistance R4 are parallel with capacitor C5, and the grid of PMOS tube is connect with resistance R4, source electrode and voltage
VCC connection drains as output end, and is connected with resistance R6, resistance R6 ground connection in drain electrode.
Compared with prior art, structure of the invention setting rationally, is felt by installing Hall sensor IC in water meter casing
It answers the magnetic field signal of magnet steel that water flow measurement signal is transferred to metering single-chip microcontroller outward to calculate, while being clamped the anti-magnetic sheet of setting
Avoid signal from being interfered every magnetic and influence the accuracy counted, reading is caused not enough precisely to be unfavorable for water meter in turn
Normal use；In addition, Hall sensor IC can be applicable in a variety of circuits, use scope is wide.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the partial sectional view of Fig. 1.
Fig. 3 is the partial enlargement structural representation of Fig. 2.
Fig. 4 is the structural schematic diagram of anti-magnetic sheet in the present invention.
Fig. 5 is the anti-another form of structural schematic diagram of magnetic sheet in the present invention.
Fig. 6 is the structural schematic diagram of Hall circuit embodiment one.
Fig. 7 is the waveform diagram of Fig. 6.
Fig. 8 is the structural schematic diagram of Hall circuit embodiment two.
Fig. 9 is the waveform diagram of Fig. 8.
Figure 10 is the structural schematic diagram of Hall circuit embodiment three.
Figure 11 is the waveform diagram of Figure 10.
In figure, 10, ontology；11, accommodating cavity；12, impeller；13, connector is sensed；20, counter；21, worm gear shaft；22, feel
Answer gear；23, magnet steel；24, pointer；30, anti-magnetic sheet；31, base portion；311, through-hole；32, clamping portion；321, clamping groove；33, every
From portion；34, protection department；35, zigzag section；36, reinforcing rib；40, glass plate；50, protective cover.
Specific embodiment
Below with reference to examples and drawings, technical solution of the present invention is further elaborated.
As shown in Figures 1 to 4, this intellectual water meter includes:
Ontology 10, inside offer accommodating cavity 11, and 10 side of ontology offers the mounting hole with 11 connection of accommodating cavity (in figure
It is not shown)；
Impeller 12 is embedded in accommodating cavity 11, and counter 20 is equipped with above impeller 12, and counter 20 passes through central gear
(not shown) is connected with impeller 12, and 20 side of counter is provided with worm gear shaft 21, and 21 bottom of worm gear shaft is arranged with in
Heart gear connected induction gear 22 is equipped with magnet steel 23 on induction gear 22；
Connector 13 is sensed, through through-hole 311 and partially protrudes into accommodating cavity 11, it is right with magnet steel 23 to be equipped on sensing connector 13
The Hall sensor IC that should be arranged, and Hall sensor IC is matched with the magnet steel 23 that subsidiary induction gear 22 rotates and is made Hall
Circuit conducting, the output end of Hall circuit transmit signals to metering single-chip microcontroller (not shown)；
Anti- magnetic sheet 30, is connected on counter 20, and above-mentioned sensing connector 13 passes through anti-magnetic sheet 30 and extends to induction gear
22 tops；
Protective cover 50 is fastened and connected, between protective cover 50 and counter 20 above counter 20 and with ontology 10
It is also equipped with glass plate 40.
Intellectual water meter matches wireless remote function, is converted by magnetic field and generates signal, by signal data after conversion signal
It is collected into corresponding processing system, i.e., continuous data is transformed into wireless radio frequency modules, realizes the function of wireless remote transmission, from
And achieve the purpose that management of the use of water.But since the magnetic field generated in water meter will affect the data of flowmeter, long-time service is easy to make
At water meter degree inaccuracy, or there is phenomena such as leak, is unfavorable for normal use.
For this purpose, the present invention devises a kind of intellectual water meter, Hall sensor IC inductive magnetic steel 23 is installed in water meter casing
Magnetic field signal water flow measurement signal be transferred to metering single-chip microcontroller outward calculate, while being clamped the anti-magnetic sheet 30 of setting and carrying out
Every magnetic, it is ensured that the accuracy of counting.
Specifically, water meter overall structure uses more universal rotor water gauge, by water meter casing ontology 10 and fasten
Protective cover 50 on ontology 10 is constituted, and accommodating cavity 11 is opened up in ontology 10 convenient for the installation of impeller 12 and counter 20, glass
The setting of glass plate 40 can then play a certain protective role counter 20.
In use, water flow flows through the rotation of 12 impeller 12 of impeller, rotation is transmitted to by central gear by impeller 12, into
One step is transmitted to induction gear 22 and worm gear shaft 21 is driven to rotate, in the present embodiment preferably on induction gear 22 mounting magnetic steel 23,
Changing magnetic field is provided to Hall sensor IC when induction gear 22 rotates.
Wherein, mounting hole is opened up on ontology 10 to run through for sensing connector 13 into accommodating cavity 11, is sensed on connector 13
Setting and the matched Hall sensor IC of magnet steel 23, the magnetic field for the flux change that inductive magnetic steel 23 is formed during rotating, whereby, magnetic
Steel 23 controls the conducting and cut-off in Hall circuit as the Hall sensor IC of switch element, thus on Hall circuit
Output end forms square-wave signal and is transmitted to metering single-chip microcontroller progress calculation processing.
In this course, to avoid interference of the magnetic field to transmitting signal, in 20 periphery of counter, anti-magnetic sheet is arranged in clamping
30, the preferably related Hall sensor IC of above-mentioned sensing connector 13 pass through anti-magnetic sheet 30 and are correspondingly arranged with magnet steel 23, it is ensured that anti-tampering
Property it is good, and then guarantee the accurate measurement of water meter, the phenomenon that avoiding leak generation.
Preferably, anti-magnetic sheet 30 includes base portion 31, and the through-hole 311 passed through for sensing connector 13, base are offered on base portion 31
The bending of about 31 two sides of portion extends to form two clamping portions 32, and two clamping portions 32 are respectively engaged on worm gear shaft 21 and induction gear 22
Between both sides.
Preferred anti-magnetic sheet 30 includes base portion 31 and is arranged on the clamping portions 32 of about 31 two sides of base portion in the present embodiment,
It opens up through-hole 311 on base portion 31 to protrude into for sensing connector 13, preferably Hall sensor IC is located at sensing connector 13 towards induction tooth
Take turns 22 sides, more conducively inductive signal.
Clamping portion 32 is respectively engaged with the upper and lower ends of worm gear shaft 21, and induction gear 22 then turns between two clamping portions 32
It is dynamic, clamping groove 321 is opened up, on clamping portion 32 preferably convenient for being connected on worm gear shaft 21.
Further, the left and right sides of base portion 31 is outward extended with protection department 34, isolation part 33 respectively, and isolation part 33 is towards snail
The bending setting of wheel shaft 21,34 side of protection department is provided with multiple zigzag sections 35.
It is noted that be additionally provided with protection department 34, isolation part 33 at left and right sides of base portion 31, be preferably isolated portion 33 towards
Worm gear shaft 21 is bent, and two clamping portions 32 of cooperation are isolated by induction gear 22 (magnet steel 23) with other component, and protection department 34 is then
Extend along 20 periphery of counter, further increases isolation effect, reduce the interference in magnetic field, the setting of zigzag section 35 then can
It avoids interfering with other component, it is ensured that the normal work of water meter.
As shown in Figure 5, it is preferable that reinforcing rib 36 is respectively set at left and right sides of base portion 31.Anti- magnetic sheet 30 can also be arranged to
Another form is only cut on the magnetic field line of vertical direction by Hall sensor IC in this present embodiment, in addition to upper and lower two card
Except socket part 32, reinforcing rib 36 directly is set in 31 two sides of base portion, improves the structural strength of anti-magnetic sheet 30.
Further, sensing connector 13 is made close to the position of Hall sensor IC of pure iron.To improve entire water meter
Structure is preferably sensed in the present embodiment and installs the position of Hall sensor IC on connector 13 and use to the antimagnetic effect of external magnetic field
Pure iron material is made, other non-magnetic metal materials or nonmetallic materials can be used in sensing remaining position of connector 13, does not do herein
It limits.As shown in the figure, there is step surface using position made of pure iron material, the upper terrace of step surface is pacified for Hall sensor
Dress, the offset face of step surface is opposite with the side of induction gear, and the lower end in offset face is lower than the lower surface of induction gear.By
This, plays good anti-magnetic disturbance.
Preferably, multiple transmission shaft (not shown)s are installed in counter 20, are arranged with biography on each transmission shaft
Moving gear (not shown), each transmission gear are successively engaged, head and the tail two transmission gears respectively with central gear, induction
Gear 22 is intermeshed.
Multiple transmission shafts are mostly arranged in counter 20 in water meter, by intermeshing transmission gear by central gear
Rotation is successively transmitted, and central gear is that rotation is transferred to induction gear 22 by each transmission gear in real work.
Further, worm gear shaft 21, each gear shaft top be fixed with pointer 24.
Pointer 24 is provided at the top of worm gear shaft 21 and each transmission shaft, pointer 24 is corresponding by correspondingly rotating instruction
Number, one gear shaft of every transmitting, carry is primary, and when reading, the corresponding number of pointer 24 is according to corresponding standard, herein preferably
Corresponding pointer 24 is x0.1 pointer on worm gear shaft 21, convenient for the metering of water flow is transferred to metering single-chip microcontroller, measures single-chip microcontroller
Final number is obtained by the calculation procedure of setting, realizes teletransmission.
It is illustrated in figure 6 the Hall circuit figure of embodiment one, practical is a differential circuit figure, it is preferable that hall sensing
The pin 1 of device IC is grounded, and pin 3 is connect with supply voltage VCC, and the one end resistance R1 is connect with pin 3, and the other end is as output
End, and pin 2 is connect with output end, the one end capacitor C1 is connect with supply voltage VCC, other end ground connection.
It is illustrated in figure 8 the Hall circuit figure of embodiment two, practical is an integrating circuit figure, and further, Hall passes
The pin 1 of sensor IC is grounded, and pin 3 connect with supply voltage VCC, capacitor C2 is connected on supply voltage VCC and capacitor C2 connects
Ground has been sequentially connected in series resistance R2, resistance R3 on pin 2, and resistance R3 is connect with supply voltage VCC, and the both ends resistance R2 are parallel with
Capacitor C3, resistance R2 are output end close to the one end resistance R3.
As shown in Figure 10 it is the Hall circuit figure of embodiment three, an amplifying circuit is superimposed really on integrating circuit figure
Figure, further, the pin 1 of Hall sensor IC are grounded, and pin 3 connect with supply voltage VCC, connects on supply voltage VCC
It is connected to capacitor C4 and capacitor C4 is grounded, resistance R4, resistance R5 have been sequentially connected in series on pin 2, and resistance R5 and supply voltage VCC connects
It connects, the both ends resistance R4 are parallel with capacitor C5, and the grid of PMOS tube Q1 is connect with resistance R4, and source electrode is connect with voltage VCC, and draining is
Output end, and resistance R6, resistance R6 ground connection are connected in drain electrode.
Various forms of Hall circuit figures can be used in actual work, specifically be can according to need and are selected, are passed through
Hall circuit exports square wave level (as shown in Fig. 7, Fig. 9, Figure 11), and turn-on time is short, and standby energy consumption is low, is conducive to make for a long time
With.Wherein, in the third embodiment, can be by way of being superimposed amplifying circuit, and then use relatively low supply voltage.
It is preferred that the voltage value in above-mentioned Hall circuit is 2.5~5V, each resistance is both preferably several megaohms, and average current is
5uA (min=1.5uA, max=10uA).
Above-mentioned Hall sensor IC is really formed by Hall element and NMOS tube are integrated.The Hall matched with magnet steel 23
Element controls the conducting and cut-off of N-channel MOS pipe, correspondingly, Hall sensor IC makes as switching component in circuit
With.It is understood that in 22 rotation process of induction gear, when magnet steel 23 is turned to specific position, Hall sensor
IC conducting, and in the rotation circumferential direction of induction gear 22, the angle that Hall sensor IC can be made in the conductive state is small, accordingly
, Hall circuit turn-on time is short, and therefore, the electricity of consumption is few, so that stand-by time is long.
In the present embodiment, term " magnet steel " is magnet structure.
In the present embodiment, the model of Hall sensor IC are as follows: MTS111.
This intellectual water meter structure setting is reasonable, by the magnetic for installing Hall sensor IC inductive magnetic steel 23 in water meter casing
Water flow measurement signal is transferred to metering single-chip microcontroller outward and calculated by field signal, at the same be clamped the anti-magnetic sheet 30 of setting carry out every
Magnetic avoids signal from being interfered and influences the accuracy counted, and reading is caused not enough precisely to be unfavorable for normally making for water meter in turn
With；In addition, Hall sensor IC can be applicable in a variety of circuits, use scope is wide.
Described herein is only the preferred embodiment of the present invention, but protection scope of the present invention is not limited to
This.The similar side of the modify or supplement or adopt that those skilled in the art in the invention carry out described specific embodiment
Formula replacement, should all be covered by within protection scope of the present invention.
Claims (10)
1. a kind of intellectual water meter characterized by comprising
Ontology, inside offer accommodating cavity, and ontology side offers the through-hole with accommodating cavity connection；
Impeller is embedded in accommodating cavity, and counter is equipped with above impeller, and the counter passes through central gear and impeller phase
Even, counter side is provided with worm gear shaft, and worm gear shaft bottom is arranged with the induction gear being connected with central gear, induction gear
On magnet steel is installed；
Connector is sensed, through through-hole and partially protrudes into accommodating cavity, the Hall for being equipped on connector and being correspondingly arranged with magnet steel is sensed and passes
Sensor IC, and Hall sensor IC is matched with the magnet steel that subsidiary induction gear rotates and Hall circuit is connected, Hall circuit
Output end transmit signals to metering single-chip microcontroller；
Anti- magnetic sheet, is connected on counter, and above-mentioned sensing connector passes through anti-magnetic sheet and extends to above induction gear；
Protective cover is fastened and connected above counter and with ontology, glass plate is also equipped between protective cover and counter.
2. a kind of intellectual water meter according to claim 1, which is characterized in that the anti-magnetic sheet includes base portion, is opened on base portion
Equipped with the through-hole passed through for sensing connector, two sides bending extends to form two clamping portions to base portion up and down, and two clamping portions are respectively engaged with
On worm gear shaft and induction gear is between both sides.
3. a kind of intellectual water meter according to claim 2, which is characterized in that be outward extended with respectively at left and right sides of base portion anti-
Shield portion, isolation part, the isolation part is bent towards worm gear shaft to be arranged, and protection department side is provided with several zigzag sections.
4. a kind of intellectual water meter according to claim 2, which is characterized in that reinforcing rib is respectively set at left and right sides of base portion.
5. a kind of intellectual water meter according to claim 1 or 2 or 3 or 4, which is characterized in that sensing connector is passed close to Hall
The position of sensor IC is made of pure iron.
6. a kind of intellectual water meter according to claim 1, which is characterized in that be equipped with several transmission shafts in counter, often
Transmission gear is arranged on a transmission shaft, each transmission gear is successively engaged, head and the tail two transmission gears respectively with center
Gear, induction gear intermeshing.
7. a kind of intellectual water meter according to claim 6, which is characterized in that worm gear shaft, the top of each gear shaft are connected
There is pointer.
8. a kind of intellectual water meter according to claim 1, which is characterized in that the pin 1 of Hall sensor IC is grounded, pin
3 connect with supply voltage VCC, and the one end resistance R1 is connect with pin 3, and the other end is as output end, and pin 2 and output end connect
It connects, the one end capacitor C1 is connect with supply voltage VCC, other end ground connection.
9. a kind of intellectual water meter according to claim 1, which is characterized in that the pin 1 of Hall sensor IC is grounded, pin
3 connect with supply voltage VCC, and capacitor C2 is connected on supply voltage VCC and capacitor C2 is grounded, has been sequentially connected in series electricity on pin 2
R2, resistance R3 are hindered, and resistance R3 is connect with supply voltage VCC, the both ends resistance R2 are parallel with capacitor C3, and resistance R2 is close to resistance R3
One end is output end.
10. a kind of intellectual water meter according to claim 1, which is characterized in that the pin 1 of Hall sensor IC is grounded, and is drawn
Foot 3 is connect with supply voltage VCC, and capacitor C4 is connected on supply voltage VCC and capacitor C4 is grounded, has been sequentially connected in series on pin 2
Resistance R4, resistance R5, and resistance R5 is connect with supply voltage VCC, the both ends resistance R4 are parallel with capacitor C5, the grid of PMOS tube with
Resistance R4 connection, source electrode are connect with voltage VCC, are drained as output end, and are connected with resistance R6, resistance R6 ground connection in drain electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357698.7A CN109269578A (en) | 2018-11-15 | 2018-11-15 | A kind of intellectual water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811357698.7A CN109269578A (en) | 2018-11-15 | 2018-11-15 | A kind of intellectual water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109269578A true CN109269578A (en) | 2019-01-25 |
Family
ID=65189845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811357698.7A Pending CN109269578A (en) | 2018-11-15 | 2018-11-15 | A kind of intellectual water meter |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289216Y (en) * | 1996-10-21 | 1998-08-26 | 厦门仪表厂 | Liquid crystal and mechanical double display telemetering water meter |
| CN1527034A (en) * | 2003-09-24 | 2004-09-08 | 郭建国 | Prepaying intelligent water meter terminal in DCPL network |
| RU2337320C1 (en) * | 2007-02-28 | 2008-10-27 | Общество с ограниченной ответственностью "Росита ДМД" | Water meter |
| CN107806908A (en) * | 2017-11-30 | 2018-03-16 | 泰安市山虎仪表科技有限公司 | A kind of electromechanical separate type IC-card water meter with transmission inducing function |
| CN108426619A (en) * | 2018-06-04 | 2018-08-21 | 魏松涛 | High-precision bidirectional measuring electronic water meter |
| CN208887699U (en) * | 2018-11-15 | 2019-05-21 | 嘉兴市威昌机电有限责任公司 | A kind of intellectual water meter |
-
2018
- 2018-11-15 CN CN201811357698.7A patent/CN109269578A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2289216Y (en) * | 1996-10-21 | 1998-08-26 | 厦门仪表厂 | Liquid crystal and mechanical double display telemetering water meter |
| CN1527034A (en) * | 2003-09-24 | 2004-09-08 | 郭建国 | Prepaying intelligent water meter terminal in DCPL network |
| RU2337320C1 (en) * | 2007-02-28 | 2008-10-27 | Общество с ограниченной ответственностью "Росита ДМД" | Water meter |
| CN107806908A (en) * | 2017-11-30 | 2018-03-16 | 泰安市山虎仪表科技有限公司 | A kind of electromechanical separate type IC-card water meter with transmission inducing function |
| CN108426619A (en) * | 2018-06-04 | 2018-08-21 | 魏松涛 | High-precision bidirectional measuring electronic water meter |
| CN208887699U (en) * | 2018-11-15 | 2019-05-21 | 嘉兴市威昌机电有限责任公司 | A kind of intellectual water meter |
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Application publication date: 20190125 |
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