CN105488913A - One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method - Google Patents
One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method Download PDFInfo
- Publication number
- CN105488913A CN105488913A CN201510943418.0A CN201510943418A CN105488913A CN 105488913 A CN105488913 A CN 105488913A CN 201510943418 A CN201510943418 A CN 201510943418A CN 105488913 A CN105488913 A CN 105488913A
- Authority
- CN
- China
- Prior art keywords
- module
- card
- ladder
- valve
- water
- 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
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
Abstract
The invention relates to a one-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and a charging method. The intelligent water meter comprises a valve driving circuit, a power management circuit, a display module, a read-write card module, a storage and a microprocessor; the read-write card module is used for reading a card; the microprocessor comprises an allocation module, a card information collection module, a total water consumption calculation module, a valve status monitoring module, a power judgment module, a flow collection module and a differential charging module; the allocation module is used for allocating limiting charge and charging differentials for the differential charging module; the card information collection module is used for reading and writing the recharge amount from the read-write card module; the total water consumption calculation module is used for sending a pulse signal according to a flow sensor to calculate the total dosage and sending the total dosage to the differential charging module. According to the one-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and the charging method, a one-card and multi-meter mode is adopted, only one user card is needed by old user transformation with multiple water meters, and the management difficulty to the users is reduced.
Description
Technical field
The present invention relates to a kind of multi-mode charge radio frequency card prepaid intellectual water meter and charging method of a card multilist.
Background technology
Because country strengthens gradually to the understanding of water resource importance, reasonable use of water, using water wisely have become the extensive common recognition of citizen, uniforma price pre-payment is effectively combined with ladder fee water, brand-new " post-pay paystation, rear water, ladder water ", the urban water supply Fare Collection System simple and direct, advanced, handling cost is low in the urgent need to.The type water meter can adopt uniforma price charging mode, also can adopt ladder charge method.For realizing the charging of urban water supply ladder and saving water measurement provides intelligentized water meter product.
Radio-frequency (RF) IC card as a kind of new technology, have contactless, be not afraid of pollution, humidity, easy to operate, the features such as accommodative ability of environment is strong.Radio frequency IC card water meter mainly adopts low-frequency radio frequency card on the market at present, and because card holds quantitative limitation, data volume can not be too large, can only realize control one table schema, and in table, charge mode is single.The many extending old building of China can not be adapted to and use polylith water meter situation; The service condition using multiple water charge mode to coexist can not be met the needs of.
Current water meter generally adopts powered battery, when battery electric quantity is not enough or people for after pulling out battery, water meter operation valve can not be closed, and affects the metering of the water yield.The data reliability of measuring products is most important, when data are wrong, often causes economic dispute.Power module is as the basis of whole electronic section, if can not ensure its reliability, system cannot normally work.
Summary of the invention
The present invention is in order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of multi-mode charge radio frequency card prepaid intellectual water meter and charging method of a card multilist, radio-frequency card adopts M1 card, and M1 card 1k byte EEPROM capacity can arrange greatly multiple table tool corresponding region, realizes a control multilist; Design multiple charge mode.
For achieving the above object, present invention employs following technical scheme:
A multi-mode charge radio frequency card prepaid intellectual water meter for one card multilist, its special character is: comprise valve driving circuit, electric power management circuit, display module, read-write card module, storer and microprocessor:
Read-write card module is used for Card Reader;
Described microprocessor comprises configuration module, card information acquisition module, water total amount computing module, valve state monitoring module, power supply judge module, flow collection module and ladder accounting module;
Described configuration module is used for the ladder accounting module configuration warning amount of money and charge ladder;
Described card information acquisition module is used for reading and writing recharge amount from read-write card module;
Described water total amount computing module is used for sending pulse signal according to flow sensor and calculates total consumption, and sends to ladder accounting module, after specified time intervals, real-time total consumption is sent to storer simultaneously.
Above-mentioned microprocessor is MSP430F4152 chip.
Above-mentioned clock module is chip PCF8563.
Above-mentioned flow sensor is one group of flow sensor.
The charging method of water meter, comprises the following steps:
1) parameter configuration: to the ladder accounting module configuration warning amount of money and charge ladder;
2) read card information, by the recharge amount stored in card, and send to ladder accounting module;
3) valve state on water pipe is detected, the battery level of electric power management circuit detection simultaneously:
If valve is open mode, battery level is normal, then keep valve open state;
If valve is open mode, battery level is little, then by-pass valve control closes, and sends simultaneously and reminds instruction;
If valve is closed condition and battery level is normal, then by-pass valve control is opened;
If valve is closed condition and battery level is little, then keep valve closing, and send prompting instruction;
4) water consumption real time measure:
Clock module tranmitting data register signal is to ladder accounting module;
Current are through flow sensor, pulse signal is sent to calculation of total module, calculation of total module makes total consumption add up, and real-time water consumption is sent to ladder accounting module by total Dosage calculation module, after specified time intervals, real-time total consumption is sent to storer simultaneously;
5) ladder accounting module is according to clock signal, in real time water consumption, judges charging ladder, and calculates the current water amount of money, and from recharge amount, deduction obtains remaining sum;
Remaining sum and the warning amount of money are compared:
If remaining sum is greater than the warning amount of money, then perform step 4);
If remaining sum is less than or equal to the warning amount of money, then perform step 6);
6) the valve-off while of warning.
Advantage of the present invention is:
1, the present invention adopts the form of a card multilist, and user can use a radio-frequency card to control polylith water meter, only need use a subscriber card, alleviate the management difficulty to user for many old user's transformations having polylith water meter.
2, intellectual water meter of the present invention adopts three kinds of charge mode (charge of single water price, monthly stepped water pricing and stepped water pricing charge per year), can carry out multiple charging mode for cell management user to different clients.
3, the present invention devises the special battery that pulls out and closes valve circuit, and the not enough or people of main battery electricity can be avoided to pull out the situation that valve that battery causes cannot close.
4, the present invention adopts data three redundancy techniques, and maximum possible ensures reliability, the consistance of intellectual water meter data.
5, the present invention adopts two-stage battery voltage detection mode, real-time monitoring power supply situation, and points out user to do corresponding process, hommization more, uses offer convenience to user.
6, the present invention can active detecting working environment, and note abnormalities process in time.There is fine reliability and security.
7, adopt high-frequency radio frequency IC-card, memory headroom is large, and read or write speed is fast.
Accompanying drawing explanation
Fig. 1 intellectual water meter general structure schematic diagram;
Fig. 2 schematic block circuit diagram of the present invention;
Fig. 3 pulls out battery and closes valve circuit diagram;
Fig. 4 radio-frequency (RF) IC card card reading circuit;
Fig. 5 intellectual water meter main program flow chart;
Fig. 6 ladder charge process program flow diagram;
Fig. 7 supply voltage trace routine process flow diagram.
Embodiment
As shown in Figure 1 and Figure 2, a kind of multi-mode charge radio frequency card prepaid intellectual water meter of a card multilist, comprises valve driving circuit, electric power management circuit, display module, read-write card module, storer and microprocessor: read-write card module is used for Card Reader; Microprocessor comprises configuration module, card information acquisition module, water total amount computing module, valve state monitoring module, power supply judge module, flow collection module and ladder accounting module; Configuration module is used for the ladder accounting module configuration warning amount of money and charge ladder; Card information acquisition module is used for reading and writing recharge amount from read-write card module; Water total amount computing module is used for sending pulse signal according to flow sensor and calculates total consumption, and sends to ladder accounting module, after specified time intervals, real-time total consumption is sent to storer simultaneously.
The multi-mode charge prepayment intelligent water meter of a card multilist of the present invention, comprises microcontroller, flow sensor, valve driving circuit, LCD display, radio-frequency (RF) IC card reading and writing data and power management section composition.It is characterized in that: during system electrification, first water-meter reading relevant information (water consumption, surplus water, table constant etc.) from storer, if surplus water is greater than zero, by-pass valve control is in open mode, then system enters dormancy, reduces power consumption.Microcontroller detects the water consumption of flow sensor signal metering user, when the water yield flowing through water meter acquires a certain degree, flow sensor sends a signal to microcontroller, and the consumption of microcontroller his-and-hers watches and surplus process, keep in, often flow through 1m
3during water, temporary data write external memory storage.When user's remaining sum is less than the warning amount of money or zero, is driven by valve and close water meter valve.Microcontroller also can carry out exchange data by radio-frequency (RF) IC card module for reading and writing, and by data in LCD display module indicator gauge.
Principle of work: the workflow of IC-card intellectual water meter, first needs the corresponding relation setting up radio-frequency (RF) IC card and water meter in use, and user must buy IC-card (subscriber card) to selling water authority, and water meter and IC-card is mutually identified; Need user to carry IC-card to pay dues when user's amount of purchasing purchase water to selling water authority, staff will purchase in water relevant information write card.Card is placed on water meter reading card position by user, and water meter will read card information, if verify and confirm errorless after, will purchase in card in water information write water meter, and make the action of corresponding display or switch valve according to running status in table.
When water utilizing process, the pointer of carry magnet rotates under the impact of current, whenever water meter passes through 0.1m
3during the water yield, carry magnet pointer rotates a circle, and water meter sends a metrical pulse signal, and now, the effective impulse of input counts and calculates water consumption by single-chip microcomputer, and calculates and use the water amount of money.When user's remaining sum is lower than when arranging the warning amount of money, valve-off prompting user purchases water, and user can use IC-card to swipe the card on water meter, can reopen valve.When user's remaining sum is less than or equal to zero, water meter valve-off, until user's amount of purchasing, and stored in when in table, remaining sum is greater than zero, Open valve.
Ladder charge principle: system uses special clock chip PCF8563, and for system provides real time date and clock, charge is opened in any a day of can arrange in software between 1 ~ 28 day monthly.Charge principle flow chart as shown in Figure 5.Monthly ladder charge needs to arrange the ladder water yield, stepped water pricing first in software, water consumption per month is when being less than or equal to the first ladder water yield, water price is collected by the first ladder, water consumption is when the second ladder, by the second stepped water pricing charge, the like, three ladder water yields can be set at most, four stepped water pricings.If namely ladder charge needs to set annual water consumption per year, when water consumption is less than or equal to the first ladder water yield, water price is collected by the first ladder, the like.
Intelligent water meter system is primarily of functional module compositions such as microprocessor, electrically operated valve control, water consumption measurement, clock circuit module, power management, radio-frequency (RF) IC card module for reading and writing, liquid crystal display, warning circuit, storeies.
Electric power management circuit: adopt 3.6V lithium battery as power supply, for improving intellectual water meter reliability of operation and security, adopts supply voltage Real-Time Monitoring circuit in design.Use two XC61C series voltage detection chip, this chip is the voltage checking chip of a high precision, low-power consumption, supply voltage and 3V and 2.8V is compared respectively.Inquired about by single-chip microcomputer compared result, when supply voltage is lower than 3V high pressure 2.8V, single-chip microcomputer sends instruction, and prompting user changes battery; When supply voltage is lower than 2.8V, valve-off is until user changes battery late gate opens once again, and program circuit as shown in Figure 6.
Pull out battery and close valve circuit: adopt comparatively low capacity reserve battery ER14250, after adopting diode step-down, voltage is less than 3.6V, when main battery electricity is sufficient, this reserve battery does not externally discharge, when main battery voltage drop to be less than 2.8V time, reserve battery works, and is system power supply.Because lithium battery exists passivation phenomenon, so use high-power resistance regularly to do electric discharge to battery activate process, ensure that reserve battery can not lose efficacy due to passivation, single-chip microcomputer is by P15 port output signal, when P15 is high level, triode Q9 conducting, reserve battery is discharged by resistance R6 and activates.
Data storage circuitry: adopt the larger AT24C04 of memory capacity as data-carrier store, this memory data erasable 1,000,000 time, data can preserve 100 years.Preserve in storer three zoness of different when writing data.When read data, read from three regions storing data, three identical conducts of data finally read data, if three data are incomplete same, using two identical data as finally reading data.
Radio-frequency (RF) IC card interface circuit: this radio-frequency (RF) IC card read/write circuit mainly adopts MFRC522 chip, this chip a low-voltage that to be NXP company release for " three tables " application, low-power consumption, low cost, contactless read-write chip that volume is little are the better selections of intelligent instrument and handheld device research and development.Single-chip microcomputer is undertaken being connected radio-frequency (RF) IC card interface circuit as shown in Figure 4 by SPI connected mode and radio-frequency (RF) IC card read/write circuit.In figure, J1 is the web member of radio frequency circuit board and master control borad, the positive and negative level that P1 is RST, P2, P7 is power supply, and P6 is chip selection interface, and other four pin are SPI interface.C11, C12 are filter capacitor, and X2 is chip crystal oscillator, for chip provides 27.12MHz frequency of operation, for driving RC522 and being supplied to the carrier signal of antenna 13.56MHz.Chip TX1, TX2 are signal emission port, and L1, L2, C3 ~ C10 forms LC resonant circuit.When there being radio-frequency (RF) IC card to enter in Card Reader region, under electromagnetic excitation, the LC resonant circuit in card produces resonance, and when accumulated electric charge reaches 2V, integrated circuit operation in card, water meter and IC-card carry out exchanges data.
Pulse acquisition circuit: in native system, the base table of water meter adopts the rotary wind type cold-water meter meeting IS04064B standard.This table mechanical count mechanism and electronic counting, by magnetic coupling transmission, adopt tongue tube sensor element sender, often flow through 0.1m
3a pulse is produced during water.The many countings phenomenon produced to effectively prevent various possible interference from shaking, the Anti-shaking circuit input single-chip microcomputer counting of double dry-reed pipe dipulse by being made up of resistance is adopted in the design, an effective impulse counting is just produced when two Puled input ports have Puled input successively time, two pulse ports have during Puled input simultaneously and are judged to be magnetic interference, do not carry out burst process.
Valve controling circuit: utilize direct current generator to drive the mode of semisphere valve forward or reverse to carry out the opening and closing of by-pass valve control in the present invention.Utilize the positive and negative rotation of two of MSP430F4152 single-chip microcomputer port controlling valves, and whether switch puts to utilize three of single-chip microcomputer ports to carry out judging valve in place.When GONG port input high level, if KAI port is high level valve is opening, if GUAN port is high level valve is closed condition.
Real-time timepiece chip interface circuit: native system is not high to the accuracy requirement of clock, therefore adopt the PCF8563 chip that cost performance is high, this is the CMOS real-time clock/calendar chip of low-power consumption, in order to reduce power consumption, open clock chip timing function, interruption can be set in certain sky in 1 ~ monthly No. 28, flexibly more convenient.Setting timing cycle, as being January, then, when PCF8563 often measures one month, its INT port output low level, reminds single-chip microcomputer to do corresponding ladder process in cycle.Single-chip microcomputer carries out periodical balancing according to the look-at-me that clock chip provides and history consumption information is preserved.
Safety and reliability designs: security is mainly reflected in the selection of radio frequency card and manages, the design adopts M1 card, has double code and verifies, is encrypted data in card simultaneously, self checking is carried out to data simultaneously, prevent reading and writing data mistake.In radio-frequency card management, the design adopts card to arrange the authorization informations such as unique number and the amount of purchasing number of times, water meter is had and identifies pseudo-card function; Reliability is mainly reflected in the interference of flow sensor, and as disturbed water meter with magnet, water meter can judge magnetic interference, then takes safeguard measure.
Claims (5)
1. a multi-mode charge radio frequency card prepaid intellectual water meter for a card multilist, is characterized in that: comprise valve driving circuit, electric power management circuit, display module, read-write card module, storer and microprocessor:
Read-write card module is used for Card Reader;
Described microprocessor comprises configuration module, card information acquisition module, water total amount computing module, valve state monitoring module, power supply judge module, flow collection module and ladder accounting module;
Described configuration module is used for the ladder accounting module configuration warning amount of money and charge ladder;
Described card information acquisition module is used for reading and writing recharge amount from read-write card module;
Described water total amount computing module is used for sending pulse signal according to flow sensor and calculates total consumption, and sends to ladder accounting module, after specified time intervals, real-time total consumption is sent to storer simultaneously.
2. the multi-mode charge radio frequency card prepaid intellectual water meter of a card multilist according to claim 1, is characterized in that: described microprocessor is MSP430F4152 chip.
3. the multi-mode charge radio frequency card prepaid intellectual water meter of a card multilist according to claim 1 and 2, is characterized in that: described clock module is chip PCF8563.
4. the multi-mode charge radio frequency card prepaid intellectual water meter of a card multilist according to claim 3, is characterized in that: described flow sensor is one group of flow sensor.
5. based on the charging method of water meter according to claim 1, it is characterized in that: comprise the following steps:
1) parameter configuration: to the ladder accounting module configuration warning amount of money and charge ladder;
2) read card information, by the recharge amount stored in card, and send to ladder accounting module;
3) valve state on water pipe is detected, the battery level of electric power management circuit detection simultaneously:
If valve is open mode, battery level is normal, then keep valve open state;
If valve is open mode, battery level is little, then by-pass valve control closes, and sends simultaneously and reminds instruction;
If valve is closed condition and battery level is normal, then by-pass valve control is opened;
If valve is closed condition and battery level is little, then keep valve closing, and send prompting instruction;
4) water consumption real time measure:
Clock module tranmitting data register signal is to ladder accounting module;
Current are through flow sensor, pulse signal is sent to calculation of total module, calculation of total module makes total consumption add up, and real-time water consumption is sent to ladder accounting module by total Dosage calculation module, after specified time intervals, real-time total consumption is sent to storer simultaneously;
5) ladder accounting module is according to clock signal, in real time water consumption, judges charging ladder, and calculates the current water amount of money, and from recharge amount, deduction obtains remaining sum;
Remaining sum and the warning amount of money are compared:
If remaining sum is greater than the warning amount of money, then perform step 4);
If remaining sum is less than or equal to the warning amount of money, then perform step 6);
6) the valve-off while of warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943418.0A CN105488913A (en) | 2015-12-16 | 2015-12-16 | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510943418.0A CN105488913A (en) | 2015-12-16 | 2015-12-16 | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105488913A true CN105488913A (en) | 2016-04-13 |
Family
ID=55675875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510943418.0A Pending CN105488913A (en) | 2015-12-16 | 2015-12-16 | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105488913A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548564A (en) * | 2016-11-08 | 2017-03-29 | 西安航天计量测试研究所 | A kind of intellectual water meter time dissemination system and method |
| CN106895892A (en) * | 2017-04-19 | 2017-06-27 | 广州市兆基仪表仪器制造有限公司 | A kind of display methods of low power-consumption intelligent water meter |
| CN107145169A (en) * | 2017-06-15 | 2017-09-08 | 安徽银通物联有限公司 | A kind of intelligent water control machine |
| CN108428295A (en) * | 2018-02-22 | 2018-08-21 | 山东大学 | Domestic consumer's multiple-energy-source comprehensively utilizes the multiple-in-one system and method under scene |
| CN110447518A (en) * | 2019-08-15 | 2019-11-15 | 山东新元易方科技有限公司 | Well irrigation monitoring system and monitoring method |
| CN110544346A (en) * | 2019-08-15 | 2019-12-06 | 山东新元易方科技有限公司 | Motor-pumped well irrigation charging system and method based on multiple modes |
| CN110769551A (en) * | 2019-10-23 | 2020-02-07 | 连云港杰瑞自动化有限公司 | Active light source control circuit for explosion-proof occasion |
| CN111736495A (en) * | 2020-02-25 | 2020-10-02 | 济南沛华信息科技有限公司 | Intelligent instrument control method and device |
| CN112002066A (en) * | 2020-08-28 | 2020-11-27 | 湖北骏翔电子科技有限公司 | Double-reed-tube counting device based on timed interruption triggering |
| CN114492711A (en) * | 2022-01-25 | 2022-05-13 | 深圳安科高技术股份有限公司 | Syringe identification device, syringe equipment and syringe identification method |
| CN114639198A (en) * | 2022-02-17 | 2022-06-17 | 山东华特智慧科技有限公司 | M1 card read-write recharging method based on NFC for water selling |
| CN114764959A (en) * | 2021-01-13 | 2022-07-19 | 辽宁思凯科技股份有限公司 | Double-core intelligent water meter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281667A (en) * | 2008-05-07 | 2008-10-08 | 吴兴中 | Multi-point sampling, non-contact type IC card intellectual water meter |
| CN201796429U (en) * | 2010-09-28 | 2011-04-13 | 左晔 | IC card prepayment water meter control circuit |
| CN103295632A (en) * | 2013-05-28 | 2013-09-11 | 中国电子科技集团公司第十研究所 | Method for preventing accidental power failure from causing linear accumulated data mutation |
| CN203689615U (en) * | 2013-06-14 | 2014-07-02 | 深圳市常工电子计算机有限公司 | Magnetic M1 card triggering low-power-consumption water meter |
| CN203931006U (en) * | 2014-06-10 | 2014-11-05 | 上海至信实业股份有限公司 | A kind of non-contact IC card water meter |
| CN204270400U (en) * | 2014-08-21 | 2015-04-15 | 令平 | A kind of intellectual water meter electronic module |
| CN105118182A (en) * | 2015-09-29 | 2015-12-02 | 成都秦川科技发展有限公司 | IC card intelligent water meter with tiered pricing function |
-
2015
- 2015-12-16 CN CN201510943418.0A patent/CN105488913A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281667A (en) * | 2008-05-07 | 2008-10-08 | 吴兴中 | Multi-point sampling, non-contact type IC card intellectual water meter |
| CN201796429U (en) * | 2010-09-28 | 2011-04-13 | 左晔 | IC card prepayment water meter control circuit |
| CN103295632A (en) * | 2013-05-28 | 2013-09-11 | 中国电子科技集团公司第十研究所 | Method for preventing accidental power failure from causing linear accumulated data mutation |
| CN203689615U (en) * | 2013-06-14 | 2014-07-02 | 深圳市常工电子计算机有限公司 | Magnetic M1 card triggering low-power-consumption water meter |
| CN203931006U (en) * | 2014-06-10 | 2014-11-05 | 上海至信实业股份有限公司 | A kind of non-contact IC card water meter |
| CN204270400U (en) * | 2014-08-21 | 2015-04-15 | 令平 | A kind of intellectual water meter electronic module |
| CN105118182A (en) * | 2015-09-29 | 2015-12-02 | 成都秦川科技发展有限公司 | IC card intelligent water meter with tiered pricing function |
Non-Patent Citations (1)
| Title |
|---|
| 吴叶兰: "《智能卡表技术与应用》", 31 October 2012, 机械工业出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548564A (en) * | 2016-11-08 | 2017-03-29 | 西安航天计量测试研究所 | A kind of intellectual water meter time dissemination system and method |
| CN106895892A (en) * | 2017-04-19 | 2017-06-27 | 广州市兆基仪表仪器制造有限公司 | A kind of display methods of low power-consumption intelligent water meter |
| CN107145169A (en) * | 2017-06-15 | 2017-09-08 | 安徽银通物联有限公司 | A kind of intelligent water control machine |
| CN108428295A (en) * | 2018-02-22 | 2018-08-21 | 山东大学 | Domestic consumer's multiple-energy-source comprehensively utilizes the multiple-in-one system and method under scene |
| CN110447518A (en) * | 2019-08-15 | 2019-11-15 | 山东新元易方科技有限公司 | Well irrigation monitoring system and monitoring method |
| CN110544346A (en) * | 2019-08-15 | 2019-12-06 | 山东新元易方科技有限公司 | Motor-pumped well irrigation charging system and method based on multiple modes |
| CN110769551A (en) * | 2019-10-23 | 2020-02-07 | 连云港杰瑞自动化有限公司 | Active light source control circuit for explosion-proof occasion |
| CN111736495A (en) * | 2020-02-25 | 2020-10-02 | 济南沛华信息科技有限公司 | Intelligent instrument control method and device |
| CN112002066A (en) * | 2020-08-28 | 2020-11-27 | 湖北骏翔电子科技有限公司 | Double-reed-tube counting device based on timed interruption triggering |
| CN112002066B (en) * | 2020-08-28 | 2022-06-17 | 湖北骏翔电子科技有限公司 | Double-reed-tube counting device based on timed interruption triggering |
| CN114764959A (en) * | 2021-01-13 | 2022-07-19 | 辽宁思凯科技股份有限公司 | Double-core intelligent water meter |
| CN114492711A (en) * | 2022-01-25 | 2022-05-13 | 深圳安科高技术股份有限公司 | Syringe identification device, syringe equipment and syringe identification method |
| CN114639198A (en) * | 2022-02-17 | 2022-06-17 | 山东华特智慧科技有限公司 | M1 card read-write recharging method based on NFC for water selling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105488913A (en) | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method | |
| CN201465220U (en) | Ic card intelligent gas meter | |
| CN203931006U (en) | A kind of non-contact IC card water meter | |
| CN102081118B (en) | Real-time metering two-way communication intelligent ammeter | |
| CN101339682B (en) | CPU card three phase electronic type pre-payment step electricity price electrical energy meter | |
| CN203588377U (en) | IC (Integrated Circuit) card intelligent gas meter with GPRS (General Packet Radio Service) remote transmission function | |
| CN201796429U (en) | IC card prepayment water meter control circuit | |
| CN103985197A (en) | Prepaid intelligent water meter system | |
| CN102324144A (en) | Intelligent waterproof water meter with radio frequency (RF) card | |
| CN106875577A (en) | A kind of intellectual water meter with leakage proof function | |
| CN202512665U (en) | Mixed charging type prepayment electric energy meter for electronic type tiered pricing for electricity, and time-sharing electricity price | |
| CN101414399B (en) | Single-phase pre-payment electric energy control device and electric energy metering system | |
| CN202434049U (en) | Water meter data acquirer | |
| CN105279855A (en) | Intelligent gas meter with NFC radio frequency CPU card | |
| CN202948512U (en) | Acquisition controller for gas prepayment | |
| CN204270400U (en) | A kind of intellectual water meter electronic module | |
| CN207409058U (en) | A kind of gauge table and its charging valve control system | |
| CN203366437U (en) | Intelligent multifunctional IC (Integrated Circuit) card gas meter | |
| CN103150828A (en) | Local carrier single-phase fee-controlled intelligent electric energy meter | |
| CN108168641A (en) | A kind of intelligence pre-payment IC Card Water-Instrument | |
| CN207963985U (en) | A kind of intelligence pre-payment IC Card Water-Instrument | |
| CN102163349A (en) | IC card meter charging system | |
| CN201503611U (en) | Double-mode intelligent fuel gas meter | |
| CN202339602U (en) | Local single-phase cost control smart electric energy meter | |
| CN202042013U (en) | IC (integrated circuit) card meter charging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
|
| RJ01 | Rejection of invention patent application after publication |