CN107167206A - A kind of water meter and its metering circuit - Google Patents
A kind of water meter and its metering circuit Download PDFInfo
- Publication number
- CN107167206A CN107167206A CN201710526091.6A CN201710526091A CN107167206A CN 107167206 A CN107167206 A CN 107167206A CN 201710526091 A CN201710526091 A CN 201710526091A CN 107167206 A CN107167206 A CN 107167206A
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- China
- Prior art keywords
- control chip
- water meter
- water
- circuit
- graphene
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims description 28
- 238000005259 measurement Methods 0.000 claims description 23
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000007710 freezing Methods 0.000 abstract description 4
- 238000013480 data collection Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 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
Abstract
The invention belongs to metering water meter technical field there is provided a kind of water meter and its metering circuit, the circuit includes control chip, display unit, power module and graphene flow sensor；The power module is connected with the control chip；The graphene flow sensor is used to detect water-carrying capacity, and exports flow velocity signal to the control chip, the water data that the control chip is generated according to the flow velocity signal and storage；The display unit is connected with the control chip, for showing the water data.Circuit structure is simple, and electronic device is few, and reliability is high, reduces cost, and is easily achieved the Data Collection of user's account day freezing water quantity, and to implement in full stepped water pricing, there is provided technical guarantee.
Description
Technical field
The invention belongs to water meter measurement technical field, more particularly to a kind of water meter and its metering circuit.
Background technology
Water resource be the mankind depend on for existence, essential resource, using water wisely has become our common recognition.At present,
The multiple cities of China have begun to carry out stepped water pricing, to guide resident's using water wisely, alleviate the situation of shortage of water resources, carry out
Stepped water pricing needs to obtain the day freezing water quantity of user's account day, and this water meter to user proposes certain requirement.
At present, traditional water meter generally uses mechanical water meter, and this water meter needs to install character wheel direct-reading device, machinery knot additional
Structure complexity, low precision, poor reliability, and without the function of freezing water consumption.Existing electronic water meter such as ultrasonic water meter in industry
And electromagnetic water meter, although it can realize that daily settlement freezes the function of water consumption, but cost is of a relatively high, measurement accuracy is poor, nothing
Method realizes effective popularization.
The content of the invention
It is an object of the invention to provide a kind of water meter measurement circuit, it is intended to solves water present in traditional technical scheme
Telogenesis sheet is of a relatively high, measurement accuracy is poor, be difficult to daily settlement the problem of freeze the function of water consumption.
Circuit described in a kind of water meter measurement circuit includes control chip, display unit, power module and graphene flow and passed
Sensor；The power module is connected with the control chip；The graphene flow sensor is used to detect water-carrying capacity, and exports
Flow velocity signal gives the control chip, and the control chip generates water data according to the flow velocity signal and stored；It is described aobvious
Show that unit is connected with the control chip, for showing the water data.
In addition, additionally providing a kind of water meter, the water meter includes above-mentioned water meter measurement circuit.
Above-mentioned water meter measurement circuit controls the flow velocity of graphene flow sensor detection water supply line by control chip
Signal, and water data is calculated, management user uses water information, and circuit structure is simple, and electronic device is few, and reliability is high,
Cost is reduced, and is easily achieved the Data Collection of user's account day freezing water quantity, there is provided technology to implement in full stepped water pricing
Ensure.
Brief description of the drawings
The structural representation for the water meter measurement circuit that Fig. 1 provides for first embodiment of the invention；
The structural representation for the graphene flow sensor that Fig. 2 provides for this hair embodiment；
The structural representation for the water meter measurement circuit that Fig. 3 provides for second embodiment of the invention；
The structural representation for the water meter measurement circuit that Fig. 4 provides for third embodiment of the invention.
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.
Fig. 1 shows the structural representation for the water meter measurement circuit that present pre-ferred embodiments are provided, for convenience of description,
Part related to the present embodiment is illustrate only, details are as follows：
A kind of water meter measurement circuit, including control chip 1, graphene flow sensor 2, power module 3 and display unit
4。
Control chip 1 is other parts in programmable logic device, preferably low-power scm chip, control circuit
Operation.Graphene flow sensor 2 is connected with control chip 1, is believed for detecting the water flow velocity supplied water, and by the flow velocity detected
Number export to control chip 1, control chip 1 generates water data according to flow velocity signal and time.As shown in Fig. 2 graphene is passed
Sensor 3 includes graphene sensing element 21, and is separately positioned on two inspections of the opposite end of graphene sensing element 21
Survey electrode 22.Specifically, two detecting electrodes 22 are set on the flow direction of water along the two ends of graphene sensing element 21 are relative
Put, when water flows through graphene sensing element 21, electrical potential difference, i.e. flow velocity signal are produced between two detecting electrodes 22.In use,
Graphene sensing element 21 attaches the inner surface for being fixed on pipeline, and detecting electrode 22 is connected with control chip 1, graphene sensing element
Part 21 sends flow velocity signal to control chip 1 by detecting electrode 22.Wherein, in the two detecting electrodes 22 one be positive inspection
Survey electrode, another be negative detecting electrode.Preferably, the graphene sensing element 21 is preferably banding graphene mesh grid.
Wherein, circuit also includes memory cell, and the memory cell is integrated in the inside of control chip 1 or spread over described
The outside of control chip 1, the user's water data generated for storage control chip 1, control chip 1 is from graphene flow sensing
Device 2 receives flow velocity signal, the water data of user is obtained after treatment, and store in the memory unit.Specifically, accumulative use
When water reaches 0.0001 cubic metre, when a storage water data, i.e. user often uses 0.0001 cubic meter of water, memory cell
A water consumption is updated, the measuring accuracy of water meter is up to 0.0001 cubic metre.
Display unit 4 is connected with control chip 1, for showing water data, such as current water consumption, of that month water consumption per month
Deng control chip 1 calls current water data from memory cell, and is shown by the display unit 4, and user can be by this
Display unit 4 checks water data.Preferably, circuit also includes responding to switch, and responding to switch is connected with control chip 1, responds
During switch closure, display unit 4 shows current water consumption, and responding to switch is off under normal circumstances, and display is not turned on.
Specifically, water meter is provided with a dust cap, the dust cap is pivotally connected with water meter and covers display unit 4, when dust cap is closed, response
Switch is off, and display unit 4 is closed, when opening dust cap, and responding to switch closure, display unit 4 is turned on and shown
Show current water consumption, display unit 4 is only turned on when user needs to check current water consumption, save electric energy, it is unnecessary to reduce
Waste of energy.In the present embodiment, the display unit 4 is LCDs.
As shown in figure 3, power module 3 is connected with control chip 1, for providing the power supply needed for circuit, power module 3 is wrapped
Battery 31 and power supply circuit 32 are included, power supply circuit 32 is connected between battery 31 and control chip 1.The battery 31 is preferred
For disposable lithium cell, and the enough circuits of battery electric quantity are used for a long time, selected battery capacity, it is ensured that holding circuit is just
Often work more than 8 years.Power module 3 also includes power interface 33, and power interface 33 is connected with power supply circuit 32, while external
External power source.Wherein, power supply circuit 32 includes mu balanced circuit, voltage conversion circuit etc., and battery 31 or external power source are provided
Voltage conversion into the available voltage of unit in circuit.Specifically, power module 3 has two kinds of powering modes, one is to pass through
The external power source that power interface 33 is connected is powered, now, and control chip 1 is operated in normal condition, the control graphene of control chip 1
The signal acquisition frequency of flow sensor 2 is once per second, and graphene flow sensor 2 sends the flow velocity signal detected to
Control chip 1, control chip 1 generates water data according to flow velocity signal and Time Calculation, meanwhile, control chip 1 judges flow velocity
Whether signal changes, if changing, by signal acquisition frequency bring up to it is per second twice, and calculate and use water water data.Separately
A kind of power supply mode is powered by battery 31, and now control chip 1 is operated in low power consumpting state, the control stone of control chip 1
The signal acquisition frequency of black alkene flow sensor 2 be every two seconds once, graphene flow sensor 2 is by the flow velocity signal detected
Send control chip 1 to, control chip 1 generates water data according to flow velocity signal and Time Calculation, meanwhile, control chip 1 is sentenced
Whether disconnected flow velocity signal changes, if changing, and signal acquisition frequency is brought up into once per second, and calculate water data.
When circuit accesses external power source by power interface 33, circuit is in normal operating conditions, and power interface 33 does not access external electrical
During source, circuit is in low power consumpting state, prevents external power source failure or power failure from causing circuit not work, and in the work of battery 31
Make time province's power supply, extend circuit service life.
As shown in figure 4, further, circuit also includes communication interface, the communication interface is connected with control chip 1, by logical
Letter interface realizes the communication connection of control chip 1 and external equipment, and control chip 1 receives control signal by communication interface,
And perform corresponding actions.Specifically, the communication interface can be used for copying and accepting real-time water, and date, time, monthly freeze to use water
The setting of the parameters such as amount, key, meter reading day, facilitates setting of the user to circuit, and simplify meter reading flow, it is easy to manage.
In the present embodiment, communication interface includes communication terminal and power supply terminal, and communication terminal is used for signal of communication, and power supply terminal is used for
The power supply terminal of transmission power supply, i.e. communication interface can be used as above-mentioned power interface 33.Pass through the communication interface simultaneous transmission
Signal of communication and power supply, simplify interface circuit, wherein, the communication interface is USB interface.Preferably, circuit can also be provided with nothing
Line communication unit, wireless communication unit is electrically connected with control chip 1, for the remotely located of remote meter reading and parameter
Deng its function and Landline communication unit are essentially identical.Meanwhile, by the wireless communication unit, water meter is easily accessed corresponding thing
Networked platforms, realize the integrated management of water meter, water system, fare payment system, realize the intellectuality for management of supplying water.The radio communication
Unit can be bluetooth communication, RS485 communication modules, RF communication modules etc..
Further, the embodiment of the present invention additionally provides a kind of water meter, including above-mentioned water meter measurement circuit.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of water meter measurement circuit, it is characterised in that the circuit includes：Control chip, display unit, power module and stone
Black alkene flow sensor；The power module is connected with the control chip；The graphene flow sensor is used to detect water
Flow, and flow velocity signal is exported to the control chip, the water data that the control chip is generated according to the flow velocity signal
And store；The display unit is connected with the control chip, for showing the water data.
2. water meter measurement circuit as claimed in claim 1, it is characterised in that the graphene sensor is sensed including graphene
Element, and it is separately positioned on two detecting electrodes of the graphene sensing element opposite end.
3. water meter measurement circuit as claimed in claim 2, it is characterised in that the graphene sensing element is banding graphene
Mesh grid.
4. water meter measurement circuit as claimed in claim 1, it is characterised in that also including responding to switch, the responding to switch with
The control chip connection, the responding to switch controls the opening and closing of the display unit.
5. water meter measurement circuit as claimed in claim 1, it is characterised in that the power module includes battery and power supply electricity
Road, the power supply circuit is connected between the battery and the control chip.
6. water meter measurement circuit as claimed in claim 5, it is characterised in that the power module also includes power interface, institute
Power interface and power supply circuit connection are stated, external power source is can access.
7. water meter measurement circuit as claimed in claim 1, it is characterised in that also including communication interface, the communication interface with
The control chip connection.
8. water meter measurement circuit as claimed in claim 7, it is characterised in that the communication interface includes communication terminal and power supply
Terminal, the communication terminal is used for signal of communication, and the power supply terminal is used to transmit power supply.
9. water meter measurement circuit as claimed in claim 1, it is characterised in that also including wireless communication unit, the channel radio
Believe that unit is electrically connected with the control chip.
10. a kind of water meter, it is characterised in that the water meter includes the water meter measurement electricity as described in any one into power 9 of power 1
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526091.6A CN107167206A (en) | 2017-06-30 | 2017-06-30 | A kind of water meter and its metering circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526091.6A CN107167206A (en) | 2017-06-30 | 2017-06-30 | A kind of water meter and its metering circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167206A true CN107167206A (en) | 2017-09-15 |
Family
ID=59827738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526091.6A Pending CN107167206A (en) | 2017-06-30 | 2017-06-30 | A kind of water meter and its metering circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167206A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672014A (en) * | 2002-07-23 | 2005-09-21 | 施蓝姆伯格海外股份有限公司 | Compact device for measuring the speed and the direction of rotation of an object |
| US20100200208A1 (en) * | 2007-10-17 | 2010-08-12 | Cola Baratunde A | Methods for attaching carbon nanotubes to a carbon substrate |
| CN103928533A (en) * | 2014-04-04 | 2014-07-16 | 南京航空航天大学 | Application and energy collection and motion sensing method of graphene in motion liquid drop energy conversation |
| 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 |
| CN104891425A (en) * | 2015-06-12 | 2015-09-09 | 武汉飞恩微电子有限公司 | Flow sensor chip based on graphene and preparation method thereof |
| CN105547384A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Constantly magnetic type electromagnetic flowmeter |
| CN105948187A (en) * | 2016-06-07 | 2016-09-21 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Activated carbon filter coupling solar energy driven device for treating bitter salty water through membrane capacitive deionization and application method thereof |
| 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 |
| CN206876243U (en) * | 2017-06-30 | 2018-01-12 | 深圳龙电电气股份有限公司 | A kind of water meter and its metering circuit |
-
2017
- 2017-06-30 CN CN201710526091.6A patent/CN107167206A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1672014A (en) * | 2002-07-23 | 2005-09-21 | 施蓝姆伯格海外股份有限公司 | Compact device for measuring the speed and the direction of rotation of an object |
| US20100200208A1 (en) * | 2007-10-17 | 2010-08-12 | Cola Baratunde A | Methods for attaching carbon nanotubes to a carbon substrate |
| CN103928533A (en) * | 2014-04-04 | 2014-07-16 | 南京航空航天大学 | Application and energy collection and motion sensing method of graphene in motion liquid drop energy conversation |
| 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 |
| CN104891425A (en) * | 2015-06-12 | 2015-09-09 | 武汉飞恩微电子有限公司 | Flow sensor chip based on graphene and preparation method thereof |
| CN105547384A (en) * | 2015-12-31 | 2016-05-04 | 中国石油天然气股份有限公司 | Constantly magnetic type electromagnetic flowmeter |
| CN105948187A (en) * | 2016-06-07 | 2016-09-21 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Activated carbon filter coupling solar energy driven device for treating bitter salty water through membrane capacitive deionization and application method thereof |
| 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 |
| CN206876243U (en) * | 2017-06-30 | 2018-01-12 | 深圳龙电电气股份有限公司 | A kind of water meter and its metering circuit |
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| PB01 | Publication | ||
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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. |