CN106875577A - A kind of intellectual water meter with leakage proof function - Google Patents
A kind of intellectual water meter with leakage proof function Download PDFInfo
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- CN106875577A CN106875577A CN201510913916.0A CN201510913916A CN106875577A CN 106875577 A CN106875577 A CN 106875577A CN 201510913916 A CN201510913916 A CN 201510913916A CN 106875577 A CN106875577 A CN 106875577A
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- 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
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Abstract
The present invention discloses a kind of intellectual water meter with leakage proof function, including hardware system and software systems, and hardware system is included with lower module：Mixed signal microcontroller, IC-card, IC-card interface, liquid crystal display, electrically-controlled valve control interface, water flux gather and monitoring assembly, motor and audible alarm circuit；Software systems employ modularized processing, are made up of primary control program and function subprogram, and the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC-card, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.The intellectual water meter with leakage proof function integrates pre-payment, stepped water pricing charging, fault detect, alarm function, leakage proof function.
Description
Technical field
The present invention relates to a kind of waterworks automation field, more particularly to a kind of intellectual water meter with leakage proof function.
Background technology
With the high speed development of social science and technology, shortage of resources phenomenon is increasingly serious, especially the water resource closely bound up with human survival.Water is valuable environmental resource, is also the important substance basis of China's strategy of sustainable development.But, China is one of very poor country of water resource owning amount per capita in the world, saves and water conservation is that China works as the highly important Strategic Measure of previous item.
With urbanization degree more and more higher, by taking medium-sized city as an example, there are about all be unableing to do without water in million family resident livings, but through there is drainage of metalling run out often in many resident families of investigation, such as forget to turn off the tap, lower water is not smooth, water pipe steam heating pipe is damaged etc. it is various the reason for, the life to resident brings very big puzzlement.The especially building of more than 5 years, annual about 5 ‰ drainage according to statistics, if being lost in terms of 1000 yuan by each household, the direct family's property loss for causing is 5000 family × 1000 yuan/family=5,000,000 yuan.The Socie-economic loss for thereby resulting in is very big, if being generalized to the whole nation, that must have more than one hundred million losses.Not only oneself is damaged, and can also bring disaster to neighbourhood, and the neighborhood relationship anxiety that also therefore causes having has gone on court, increases unharmonious factor.
The content of the invention
In order to solve the problems, such as existing water meter unitary function, cannot find automatically and anti-antipriming pipe metal run out, leak, the present invention provides one kind and integrates pre-payment, stepped water pricing charging, fault detect, alarm function, leakage proof function, the intellectual water meter with leakage proof function.
The technical solution adopted for the present invention to solve the technical problems is：A kind of intellectual water meter with leakage proof function, including hardware system and software systems, hardware system are included with lower module：Mixed signal microcontroller, IC cards, IC-card interface, liquid crystal display, electrically-controlled valve control interface, water flux gather and monitoring assembly, motor and audible alarm circuit；Software systems employ modularized processing, are made up of primary control program and function subprogram, and the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC cards, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.
The operation principle of the intellectual water meter with leakage proof function of the invention：Intellectual water meter with leakage proof function is by metering and controls the volume total amount for flowing through water supply pipe water come work.When there is metrical pulse to arrive, single-chip microcomputer switchs to work state by sleeping, and corresponding charging treatment is carried out by mixed signal microcontroller：Both prescribed a time limit when user reaches certain ton in unit interval (typically monthly calculating) with water, change was risen as the increase water price lattice of water consumption are stepped, water consumption was more, and the water price for being used is higher.The correlation that water meter receives stepped water pricing uses water parameter, current (ladder) unit price inside real-time adjustment water meter, and calculates the water data such as the remaining sum in water meter in real time according to the water consumption in water parameter and this month.When the surplus of user's water reaches default alarm amount (alarm amount is set by water meter management department), water meter meeting valve-closing alarm is reminded the user that and purchases water as early as possible.When being supplemented with money in the IC-card insertion water meter that will have been supplemented with money, in IC-card water meter single-chip microcomputer recognize first IC-card password and confirm it is errorless after, read in that institute's water purchasing amout is simultaneously cumulative with remaining sum in water meter, water meter is according to the stepped water pricing of Shou Shui departments, real time billing, term settlement.Current water consumption zero after clearing, total water consumption is real-time accumulated, and write IC-card water meter built-in storage, and then control magnetic valve to open, supplement with money and finish the working condition and recharge amount of water meter and can show on a liquid crystal display, when artificial dismounting water meter or surplus water are less than setting value, water meter is alarmed and turns off valve in time, while in saving the data in internal Flash.
The mixed signal microcontroller is the core of whole intellectual water meter, and it is responsible for information judgement, identification, computing, the work for the treatment of.Mixed signal microcontroller selects MSP430F413 single-chip microcomputers.The single-chip microcomputer is a kind of 16 RISC instruction set single-chip microcomputers of super low-power consumption Flash types, with abundant piece inner peripheral, operating voltage is 1.8V~3.6V, 24 × 4 sections of built-in LCD drivers, volume, reduces cost can be reduced, it is particularly suitable for applications in the place of various requirement low-power consumption, such as applies on battery or handheld device.
The water flux gather and monitoring assembly are made up of magnet and tongue tube, and using three dry reed-pipe structures, it is 60 ° that three tongue tubes install angle, and water is gathered using three tongue tube sensors；Tongue tube is made up of the glass shell and iron-nickel alloy reed for evacuating.
Water flux gather and monitoring assembly are made up of magnet and tongue tube, and water is measured with three tongue tube sensors more effectively can prevent from disturbing the counting error for causing, it is clear that antijamming capability is more strengthened compared with two tongue tubes, can effectively judge the direction of current.Just to the flow direction for judging water outlet during tongue tube action, because if the adhesive reaction before tongue tube action is that tongue tube causes, then expression is forward flow, if an adhesive before tongue tube action is that tongue tube causes that explanation to be Flow Injection Chemiluminescence Method.Judge whether discharge reduction with the action of tongue tube, judge whether that water increases with the action of tongue tube.So, measuring water with three tongue tubes just can clearly distinguish the direction of current.
Magnetic disturbance that can also be to external world during many tongue tubes measurements is detected.In the case where there is strong magnetic disturbance in the external world, each tongue tube in many tongue tube systems all will accordingly may determine that abnormal state in same state.
The time supervision module uses the time relay.
The IC-card interface uses FM4442 storage cards, low cost.It uses 0.6 micrometre CMOS EEPROM techniques, and there are 256 byte user memories, 32 byte write-protected zones and 3 bytes programming safety certification code in inside.Peripheral interface follows ISO7816 consensus standards (synchronous transfer).Make full use of its inside and outside resource, user memory storage user's water;The programming of protection memory block and encrypted memory is capable of achieving the personalized designs of IC, the security that raising is used.
The liquid crystal display as water meter output interface, Main Function is the various running statuses for exporting water meter, and related data;Additionally there is the function of user's prompting.In order to reduce power consumption, cost-effective, the liquid crystal display of custom-made is used in design.Liquid crystal display as water meter output interface, except showing remaining sum in the on off state of electromagnetic valve, table (representing that water meter is in overdraw state when remaining sum is shown as negative), accumulation water consumption, battery status, this month accumulation water consumption, segmentation (during stepped water pricing, the ton limit of every kind of water price water) outside display, univalent (current water price) display, current date and current time, also have the information and error message for reminding user to supplement with money in time concurrently.
The software systems employ modularized processing, are made up of primary control program and function subprogram, and the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC cards, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.
The system initialization includes storehouse, each port, interruption, the setting of LCD control registers to MSP430F413, so that CPU can normal work;After system initialization, into low-power consumption mode, until there are various interruption situations to be waken up, respective interrupt service routine is entered back into.
The interface module of the IC-card includes the decryption of IC-card Effective judgement, read/write and IC-card and encryption.
The charging processing module includes that stepped water pricing block meter rate judges and processes.
The intellectual water meter with leakage proof function, it is external in one except collecting pre-payment, stepped water pricing charging, fault detection capability, also have following functions concurrently：
(1) auto-alarming function：When surplus water is with to the alarm amount for setting, water meter cuts off the water supply valve-closing, reminds user's purchase water；
(2) leakage proof function；
(3) overdraw function：When surplus water is with to the overdraw amount for setting, water meter cuts off the water supply valve-closing；Now, " subscriber card " is only supplemented into money purchase water again, water meter valve can just opens；
(4) automatic protection functions：When water meter meets with magnetic disturbance, water meter is by valve-closing；Meanwhile, water meter places various disturbance states on record.Water meter is provided with antiwithdrawal device, when the situation of Dismountable is run into, will be into lock-out state；
(5) battery undervoltage prompt facility：When the batteries are low, controller cuts off the water supply valve-closing, to remind user to change battery；The record data of surplus water and actual used water amount is locked simultaneously, after more renewing battery, original is constant with water information data；
(6) accumulative water consumption, this water consumption per month and water volume that can be utilized can be provided at any time.For the ease of user's regimen condition of grasp in time, " subscriber card " can use to check " cumulative volume ", " surplus ", " unit price ", " of that month consumption " at any time in use.
The beneficial effect of the intellectual water meter with leakage proof function of the invention：Integrate pre-payment, stepped water pricing charging, fault detect, alarm function, leakage proof function, with clear reading, accurate measurement, manage it is easy to control the characteristics of.And water meter inside has with the price parameter (such as current unit price, stepped water pricing) and accurate real-time clock (being used as the time standard that multi tariff is adjusted) of water, it is for unit is supplemented with money by the amount of money when supplementing with money that more important point is, rather than what is filled by water, the trouble in the presence of mutual phase transformation and small change when supplementing with money is avoided, the modernization level of urbanite water consumption meterage management is effectively raised.This paper innovative points：Progressive price for water charging, fault detect, leakage proof function are realized on the basis of original intellectual water meter, difficult charge and water-saving problem is effectively solved.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the hardware system of the intellectual water meter with leakage proof function of the invention.
Fig. 2 is the flow chart of the software systems of the intellectual water meter with leakage proof function of the invention.
Fig. 3 is the structural representation of tongue tube of the invention.
Fig. 4 is three tongue tube scheme of installations in water flux gather of the invention and monitoring assembly.
In figure, 1, tongue tube.
Specific embodiment
Embodiment one
Fig. 1 and Fig. 2, this specific embodiment, a kind of intellectual water meter with leakage proof function, including hardware system and software systems are refer to, hardware system is included with lower module：Mixed signal microcontroller, IC cards, IC-card interface, liquid crystal display, electrically-controlled valve control interface, water flux gather and monitoring assembly, motor and audible alarm circuit；Software systems employ modularized processing, are made up of primary control program and function subprogram, and the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC cards, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.
Mixed signal microcontroller.Mixed signal microcontroller is the core of whole intellectual water meter, and it is responsible for information judgement, identification, computing, the work for the treatment of.Mixed signal microcontroller selects MSP430F413 single-chip microcomputers.The single-chip microcomputer is a kind of 16 RISC instruction set single-chip microcomputers of super low-power consumption Flash types, with abundant piece inner peripheral, operating voltage is 1.8V~3.6V, 24 × 4 sections of built-in LCD drivers, volume, reduces cost can be reduced, it is particularly suitable for applications in the place of various requirement low-power consumption, such as applies on battery or handheld device.
Time supervision module uses the time relay.
Fig. 3 and Fig. 4 is refer to, water flux gather and monitoring assembly are made up of magnet and tongue tube, using three dry reed-pipe structures, it is 60 ° that three tongue tubes install angle, and water is gathered using three tongue tube sensors；Tongue tube is made up of the glass shell and iron-nickel alloy reed for evacuating.When magnet is near tongue tube, reed is magnetized, and equivalent to one block of magnet, one end is N poles to the reed after magnetization, and one end is S poles.There is suction to produce during the opposite polarity sensed at reed contact, when suction is more than the restoring moment of reed, the closing of contact.When magnet is away from tongue tube, reed demagnetization, suction disappears, contact release.
Refer to Fig. 3 and Fig. 4, water flux gather and monitoring assembly are made up of magnet and tongue tube, water is measured with three tongue tube sensors more effectively can prevent from disturbing the counting error for causing, it is clear that antijamming capability is more strengthened compared with two tongue tubes, can effectively judge the direction of current.Just to the flow direction for judging water outlet during tongue tube action, because if the adhesive reaction before tongue tube action is that tongue tube causes, then expression is forward flow, if an adhesive before tongue tube action is that tongue tube causes that explanation to be Flow Injection Chemiluminescence Method.Judge whether discharge reduction with the action of tongue tube, judge whether that water increases with the action of tongue tube.So, measuring water with three tongue tubes just can clearly distinguish the direction of current.
Magnetic disturbance that can also be to external world during many tongue tubes measurements is detected.In the case where there is strong magnetic disturbance in the external world, each tongue tube in many tongue tube systems all will accordingly may determine that abnormal state in same state.
IC-card interface uses FM4442 storage cards, low cost.It uses 0.6 micrometre CMOS EEPROM techniques, and there are 256 byte user memories, 32 byte write-protected zones and 3 bytes programming safety certification code in inside.Peripheral interface follows ISO7816 consensus standards (synchronous transfer).Make full use of its inside and outside resource, user memory storage user's water;The programming of protection memory block and encrypted memory is capable of achieving the personalized designs of IC, the security that raising is used.
Liquid crystal display as water meter output interface, Main Function is the various running statuses for exporting water meter, and related data;Additionally there is the function of user's prompting.In order to reduce power consumption, cost-effective, the liquid crystal display of custom-made is used in design.Liquid crystal display as water meter output interface, except showing remaining sum in the on off state of electromagnetic valve, table (representing that water meter is in overdraw state when remaining sum is shown as negative), accumulation water consumption, battery status, this month accumulation water consumption, segmentation (during stepped water pricing, the ton limit of every kind of water price water) outside display, univalent (current water price) display, current date and current time, also have the information and error message for reminding user to supplement with money in time concurrently.
Software systems employ modularized processing, are made up of primary control program and function subprogram, and the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC cards, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.
System initialization includes storehouse, each port, interruption, the setting of LCD control registers to MSP430F413, so that CPU can normal work;After system initialization, into low-power consumption mode, until there are various interruption situations to be waken up, respective interrupt service routine is entered back into.
The interface module of IC cards includes the decryption of IC cards Effective judgement, read/write and IC cards and encryption.
Charging processing module includes that stepped water pricing block meter rate judges and processes.
Embodiment two
Refer to Fig. 1 and Fig. 2, what the present embodiment and the difference of embodiment one were that mixed signal microcontroller selects is that the LPC2132 embedded scms and IC cards of high integration selects non-contact IC card.
What mixed signal microcontroller was selected is the LPC2132 embedded scms of high integration.
LPC2132 embedded scms are available free and two low-power consumption modes of power down, by indivedual enables can forbid external function and reduce external clock optimizing power consumption, are powered by single power supply, operating voltage range：3.0 ~ 3.6V, meets requirement of the system to low-power consumption.
IC cards select non-contact IC card, and non-contact IC card data communication uses radio-frequency recognition system, refers to object is identified using radio frequency identification signal, and it is by radiofrequency signal automatic identification destination object and obtains related data.Radio-frequency recognition system is made up of two parts of transponder and reader, in, transponder is attached on article to be identified, reader is used for when the article to be identified for adhering to transponder passes through its read range, it is automatic in a contactless manner to take out the agreement identification information in transponder, so as to realize automatic identification article or the automatic function of collecting article identification information.The space of radiofrequency signal is realized between transponder and reader by coupling element（It is contactless）Coupling, in coupling channel, according to sequential relationship, realize transmission, the exchange of data of energy.Using communication inductively and energy transmission means between the read write line and transponder of radio-frequency recognition system.
Exemplary description has been carried out to the present invention above in conjunction with accompanying drawing; obviously realization of the invention is not subject to the restrictions described above; as long as employing the various improvement that technical solution of the present invention is carried out; or it is not improved say it is of the invention design and technical scheme be applied to other occasions, within the scope of the present invention.
Claims (10)
1. a kind of intellectual water meter with leakage proof function, including hardware system and software systems, it is characterised in that hardware system is included with lower module：Mixed signal microcontroller, IC cards, IC-card interface, liquid crystal display, electrically-controlled valve control interface, motor and audible alarm circuit；Software systems employ modularized processing,
It is to be made up of primary control program and function subprogram, the primary control program includes:The treatment of system initialization, condition adjudgement, flow pulse and water consumption, alarm and low-power consumption mode treatment, the function subprogram include:The interface module of IC cards, power detecting module, flow monitoring module, flow judge module, time supervision module, charging processing module and valve control module.
2. a kind of intellectual water meter with leakage proof function according to claim 1, it is characterised in that the mixed signal microcontroller selects MSP430F413 single-chip microcomputers.
3. a kind of intellectual water meter with leakage proof function according to claim 1, it is characterized in that, what the mixed signal microcontroller was selected is the LPC2132 embedded scms of high integration, and the LPC2132 embedded scms are provided with idle and two low-power consumption modes of power down.
4. a kind of intellectual water meter with leakage proof function according to claim 1, it is characterized in that, the IC cards select non-contact IC card, non-contact IC card data communication uses radio-frequency recognition system, radio-frequency recognition system is made up of two parts of transponder and reader, using communication inductively and energy transmission means between the read write line and transponder of radio-frequency recognition system.
5. according to a kind of any described intellectual water meter with leakage proof function of claims 1 to 3, it is characterised in that the time supervision module is by the time relay.
6. according to a kind of any described intellectual water meter with leakage proof function of claims 1 to 3, it is characterised in that the water flux gather and monitoring assembly are made up of magnet and tongue tube, and tongue tube is made up of the glass shell and iron-nickel alloy reed for evacuating.
7. a kind of intellectual water meter with leakage proof function according to claim 6, it is characterised in that the water flux gather and monitoring assembly use three dry reed-pipe structures, and it is 60 ° that three tongue tubes install angles.
8. according to a kind of any described intellectual water meter with leakage proof function of claims 1 to 3, it is characterised in that the IC-card interface uses FM4442 storage cards.
9. according to a kind of any described intellectual water meter with leakage proof function of claims 1 to 3, it is characterised in that the interface module of the IC cards includes the decryption of IC cards Effective judgement, read/write and IC cards and encryption.
10. according to a kind of any described intellectual water meter with leakage proof function of claims 1 to 3, it is characterised in that the charging processing module includes that stepped water pricing block meter rate judges and processes.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108198344A (en) * | 2018-02-08 | 2018-06-22 | 宁夏隆基宁光仪表股份有限公司 | The wireless intelligent water meter of counterflow-preventing |
| CN109427186A (en) * | 2017-09-05 | 2019-03-05 | 辽宁思凯科技股份有限公司 | A kind of intellectual water meter die for special purpose group based on NB-IOT modem |
| CN109903539A (en) * | 2017-12-11 | 2019-06-18 | 辽宁思凯科技股份有限公司 | A kind of narrowband NB-IOT communication module group and its application method for ultrasonic water meter |
| CN110597141A (en) * | 2019-09-27 | 2019-12-20 | 中国地震局地震研究所 | Intelligent control system for preventing water tap from running out |
| CN112393779A (en) * | 2020-11-19 | 2021-02-23 | 张翠川 | Drinking water centrifugal purification type intelligent water meter |
| CN113671874A (en) * | 2021-08-20 | 2021-11-19 | 青岛鼎信通讯股份有限公司 | Intelligent water meter valve control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109427186A (en) * | 2017-09-05 | 2019-03-05 | 辽宁思凯科技股份有限公司 | A kind of intellectual water meter die for special purpose group based on NB-IOT modem |
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| CN112393779A (en) * | 2020-11-19 | 2021-02-23 | 张翠川 | Drinking water centrifugal purification type intelligent water meter |
| CN113671874A (en) * | 2021-08-20 | 2021-11-19 | 青岛鼎信通讯股份有限公司 | Intelligent water meter valve control method |
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Application publication date: 20170620 |