CN2445300Y - Intelligent card water meter - Google Patents
Intelligent card water meter Download PDFInfo
- Publication number
- CN2445300Y CN2445300Y CN 00244869 CN00244869U CN2445300Y CN 2445300 Y CN2445300 Y CN 2445300Y CN 00244869 CN00244869 CN 00244869 CN 00244869 U CN00244869 U CN 00244869U CN 2445300 Y CN2445300 Y CN 2445300Y
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- water meter
- water
- card
- circuit
- valve
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- Expired - Fee Related
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Abstract
The utility model relates to an intelligent IC card prepaying cold and hot water meter, which comprises a meter body, a housing, a water inlet pipe, a water outlet pipe, a counter, a circuit box, and a circuit part. The intelligent IC card prepaying cold and hot water meter is characterized in that a single chip microprocessor is respectively in electrical connection with an iButton card socket, a valve off key, a water consumption sensor, a start key, an LCD display, and an electromagnetic valve; the single chip microprocessor is preferred to be also in electrical connection with a detection sensor of an external magnetic field and an under-voltage detection circuit. Because an iButton IC card is used, all circuit parts can be completely sealed, and all the circuit parts are moistureproof. The reliability of a water meter is enhanced, and the service life of the water meter is extended.
Description
The utility model is the hot and cold water meter of a kind of intelligent IC-card pre-payment.
The applicable IC-card of existing IC-card payment system (as ammeter, water meter, gas meter etc.) has three kinds: 1. Contact Type Ic Card system; The IC-card of the type at first contacts with the contact of IC by 8 electrical contacts of deck, carries out exchanges data with the reading and writing device then.The survivability of deck is poor, and the life-span is short, requires the environment for use condition good, be not suitable for working under dark, moist environment, otherwise electrical contact can come off in corrosion.2. contactless IC card system; The type IC-card does not have electrical contact, finishes exchanges data by electromagnetic wave and IC-card that special reading and writing device produces.Its emitting antenna can be installed in the casing, so survivability is strong, the life-span is long, can be operated in comparatively in the rugged environment.But owing to finish exchanges data by electromagnetic wave, so its equipment complexity, the reliability of antijamming capability and exchanges data, job stability, economy are not as the Contact Type Ic Card system.3. " i Button " card system; Belong to the Contact Type Ic Card type, but that its electrical contact mode designs is very ingenious, only needs a face contact just can finish exchanges data.The shape such as the coin of " i Button " IC-card, shell is encapsulated by stainless steel, and deck then is a corrosion resistant plate.Only IC-card need be placed on the deck during use and get final product.It has simultaneously the Contact Type Ic Card exchanges data reliable, be not afraid of and disturb and non-contact IC card physical construction is firm, survivability is strong, the life-span is long, can be operated in the inferior advantage of rugged environment." i Button " card is economical and practical, is that the ideal of IC-card water meter is selected.But there is not to use the water meter of " i Button " card so far.
The purpose of this utility model provides a kind of use " i Button " card, reliability height, long smart card water meter of life-span.
The utility model includes table body, shell, water inlet pipe, rising pipe, register, circuit box and circuit part, it is characterized in that: chip microprocessor respectively with " i Button " deck, close valve key, be electrically connected with water sensor, start key, LCD display and solenoid valve.Chip microprocessor preferably also is electrically connected with external magnetic field detecting sensor and undervoltage detection circuit.Above-mentioned electric component all has the commercial goods, as " i Button " deck, key, sensor, LCD display and solenoid valve electricity etc. and undervoltage detection circuit also is a prior art, just has ready-made available on general electronic circuit atlas.
Basic functional principle: with water sensor the flow of water meter is transformed to electric impulse signal, the microprocessor of delivering to control section is finished the metering of water.Control in the table is realized by highly integrated chip microprocessor, the built-in reset circuit of single-chip microcomputer, oscillator, FLASH program storage, eeprom memory, possess free time and power-down mode, in order to finish the accurate collection and the non-volatile recording of data on flows, the action of by-pass valve control topworks provides attended operations such as adding that man-machine interface finishes user data, inquiry.Can be provided with in the table illegally adding the mechanism that magnet, running down of battery situation detect, in case detect these situations, valve-off immediately, and at the liquid crystal display displays warning information.
" i Button " card after the user will supplement (purchasing water) with money is placed on the deck, and presses start key, and microprocessor begins reading and writing " i Button " card, and there is in the microprocessor amount of supplementing with money in elimination blocks simultaneously in the amount of supplementing with money in will blocking.If the amount of supplementing with money is effective, then the microprocessor driven LCD display shows the current amount of supplementing with money, if before in the table surplus is arranged, then shows surplus, the current amount of supplementing with money and total amount.Microprocessor sends control signal and makes the electromagnetic valve breakdown be that the user supplies water then.The water of the every usefulness of user one unit as 0.1 cubic metre of water, with switching signal of water sensor output, cuts 0.1 cubic metre from the amount of supplementing with money of microprocessor internal memory.When reducing to also surplus certain water yield, during as 5 cubic metres, whenever use up 0.5 cubic metre, the microprocessor controls solenoid valves door is closed certain hour once, as the shut-in time be 30 seconds, show on LCD display simultaneously and purchase the water prompt that the prompting user purchases water.When reducing to the amount of supplementing with money and equal 0, the microprocessor by-pass valve control is closed, and " i Button " card is supplemented with money again and starts water meter up to the user.
This water meter is interior except being equipped with the water sensor, also the external magnetic field detecting sensor can be housed, when the user places magnet attempt when disturbing water meter normally to measure with water sensor on water meter, the external magnetic field detecting sensor can be sent signal, and microprocessor then cuts out electromagnetic valve immediately and stops to supply water.After removing externally-applied magnetic field, water meter can resume water supply.
The power supply that this water meter is used is preferably battery, and the design effort time is more than 5 years.When the electric weight of battery is reduced to can not make the water meter operate as normal time, undervoltage detection circuit sends signal.The microprocessor by-pass valve control is closed, and shows the under-voltage prompt of battery on LCD display, and battery is changed in prompting.This water meter can be provided with to be forced to close valve key, and after pressing this key, water meter can valve-off.On user's pipeline, can save table prosthomere door like this, save spending on the one hand, make the user can not illegally remove water meter or straight-through water supply on the other hand, steal water to the user and be provided with obstacle.
In order to save electric energy, the display of this water meter is preferably the manual intervention display mode, does not promptly show at ordinary times, shows that if desired as long as press start key, display just begins to show certain hour, as the demonstration time be 1 minute.
Remarkable advantage of the present utility model is that reliability height, life-span are long: owing to use " i Button " IC-card, all circuit parts can seal fully, are not afraid of humidity, have improved the reliability of water meter and the serviceable life of prolongation water meter widely.
Fig. 1 is the physical construction synoptic diagram of embodiment.
Fig. 2 is an embodiment electricity block diagram.
Fig. 3 is the electrical schematic diagram of embodiment.
Embodiment: see Fig. 1-3.The numerical coding of frame of broken lines is corresponding with corresponding square frame among Fig. 2 among Fig. 3.This intellectuality IC-card prepay water meter is made up of control section and Machinery Ministry:
Components of machine such as the water meter 3 that mechanical part is redesigned by circuit box 1, water meter counter 2, process, water inlet pipe 4, rising pipe 5, electromagnetic valve 6, watermeter shell 7, foamed heat-insulating material 8 are formed.For make the IC-card water meter in mechanical dimension with the light water epiphase with, if common water meter is not shortened dimensionally, then on serial connection solenoid valve behind the door, the inevitable overlength of its mechanical dimension.Therefore under the situation that does not influence the water meter measurement precision, the housing of water meter is redesigned, make the water meter length of bore 20mm shorten to 120mm by original 195mm, after guaranteeing to be connected in series electromagnetic valve, the length of water meter still is 195mm.
With water sensor 9 flow of water meter is transformed to electric impulse signal, the microprocessor 10 of delivering to control section is finished the metering of water.Sensor 9 is made of fixing tongue tube and the permanent-magnet steel that is contained on the water meter counter character wheel.Magnet steel is installed on the gear shaft of X0.01 cubic meter position, so, whenever flow through 0.1 cubic metre of water, in the reed pipe contact once, so the minimum demonstration position of this water meter is 0.1 cubic metre.
Foamed heat-insulating material 8 is layers across the mature of filling between water gauge body 3, electromagnetic valve 6 and watermeter shell 7.When using as hot water gauge, with heat and the external isolation that hot water gauge discharges, guarantee to be installed in the outer control circuit environment temperature of watchcase and remain on below 60 ℃, make energy operate as normal such as circuit part and battery.
Watermeter shell 7 is as a whole with all parts sealings of water meter, and it plays two effects; 1. make water meter realize electromechanical integrated structure, protection water meter inner body is not damaged.2. heat sinking function, the part heat that water meter is given out dissipates.
This water meter machinery and electric on be divided into two independently modules, connect by the screw that is added with lead sealing between them, so that replacing battery and maintenance.
The control of table is realized by highly integrated chip microprocessor 10 (model is AT90S1200), these single-chip microcomputer 10 built-in reset circuits, oscillator, FLASH program storage, eeprom memory, possess free time and power-down mode, in order to finish the accurate collection and the non-volatile recording of data on flows, the action of by-pass valve control topworks provides attended operations such as adding that man-machine interface finishes user data, inquiry.Flow pulses, the mode of employing magnetic/tongue tube induction, reset count had both had strong anti-interference ability, possessed the characteristic of low-power consumption again.Reset circuit is selected special chip IMP811R for use, and antijamming capability is strong, and (only being 5 microamperes) low in energy consumption, it is reliable to reset.
Be provided with in the table illegally adding the testing agency of magnet, running down of battery situation, in case detect these situations, valve-off immediately, and at the liquid crystal display displays warning information.
In the selection of smart card, adopt " i Button " card, have superiority such as rugged surroundings such as moisture resistance wets, high security, nothing machinery wear-out life length.
" i Button " after the user will supplement (purchasing water) with money card 11 is placed on the deck 12, and press start key 13, microprocessor 10 beginning reading and writing " i Button " cards, and the amount of supplementing with money in will block exists in the microprocessor 10, eliminates the 11 interior amounts of supplementing with money of blocking simultaneously.If the amount of supplementing with money is effective, then microprocessor 10 drives LCD display 14, shows the current amount of supplementing with money, if before in the table surplus is arranged, then shows surplus, the current amount of supplementing with money and total amount.Microprocessor 10 sends control signal and makes electromagnetic valve 6 breakdowns be that the user supplies water then.0.1 cubic metre of water of the every usefulness of user with switching signal of water sensor 9 outputs, cuts 0.1 cubic metre from the amount of supplementing with money of microprocessor 10 internal memories.When reducing to also surplus 5 cubic metres, whenever use up 0.5 cubic metre, microprocessor 10 control electromagnetic valve doors 6 are closed once, and the shut-in time is 30 seconds, shows on LCD display 14 simultaneously and purchases the water prompt, and the prompting user purchases water.When reducing to the amount of supplementing with money and equal 0, microprocessor 10 by-pass valve controls 6 are closed, and " i Button " card 11 is supplemented with money again and start water meter up to the user.Use the water sensor 9 except being equipped with in this water meter, external magnetic field detecting sensor 15 also is housed, when the user placed magnet attempt interference water meter with water sensor 9 normal meterings on water meter, external magnetic field detecting sensor 15 can be sent signal, and 10 of microprocessors cut out electromagnetic valve 6 immediately and stop to supply water.After removing externally-applied magnetic field, water meter can resume water supply.
The power supply that this water meter is used is a lithium battery 16, and the design effort time is more than 5 years.When the electric weight of battery is reduced to can not make the water meter operate as normal time, undervoltage detection circuit 17 sends signal.Microprocessor 10 by-pass valve controls 6 are closed, and show the under-voltage prompt of battery on LCD display 14, and battery is changed in prompting.This water meter is provided with to be forced to close valve key 13, and after pressing this key, water meter can valve-off.On user's pipeline, can save table prosthomere door like this, save spending on the one hand, make the user can not illegally remove water meter or straight-through water supply on the other hand, steal water to the user and be provided with obstacle.
In order to save electric energy, the display 14 of this water meter is the manual intervention display mode, does not promptly show at ordinary times, shows if desired, as long as press start key 18, display 14 just begins to show that the demonstration time is 1 minute.To further specifying of important electric component and circuit unit: a, " i Button " deck
" i Button " deck is the interface arrangement of " i Button " card and control circuit, can reading and writing " i Button " block by " i Button " deck microprocessor, and there is in the microprocessor charge value in elimination blocks simultaneously in the amount of supplementing with money in will blocking.B, water sensor
Water sensor is the device that the water meter mechanical count is converted to the electric switch signal, and water meter whenever flows through 0.1 cubic metre of water, and with switching signal of water sensor output, microprocessor will reduce 0.1 cubic metre in the amount of supplementing with money of internal memory.C, external magnetic field detecting sensor
The effect of external magnetic field sensor is; Disturb water meter normally to measure with water sensor when the user places magnet attempt on water meter, or disassemble water meter lead sealing attempt is when fetching boiling water watch case, sensor can send signal, and microprocessor then cuts out electromagnetic valve immediately and stops to supply water.After removing externally-applied magnetic field, water meter can resume water supply.D, display
Display is liquid crystal display, and its content displayed has time the purchase water yield, surplus water, water total amount, battery is under-voltage, purchase the water prompting, faulty operation is pointed out.E, microprocessor
Microprocessor cooperates with peripheral circuit, finishes the management and the control of water meter.F, start key
Start key realizes that manual intervention shows in order manually to wake microprocessor up, and water meter with money such as is supplemented at operation.Valve key is closed in g, pressure
After pressing this key, water meter can valve-off.H, undervoltage detection circuit
When the electric weight of battery is reduced to can not make the water meter operate as normal time, undervoltage detection circuit sends signal, and the microprocessor by-pass valve control is closed.I, valve driving circuit
The control signal of microprocessor output is very faint, can not directly drive electromagnetic valve, by valve driving circuit the control signal of microprocessor output is amplified and the driving electromagnetic valve.M, battery circuit
Power supply is a lithium battery, and the design effort time is more than 5 years, and it constitutes battery circuit together with several filter capacitors.
The advantage of present embodiment:
1, reliability height, life-span are long: owing to use " i Button " IC-card, all circuit parts can seal fully, are not afraid of humidity, have improved the reliability of water meter widely and have prolonged serviceable life of water meter.
2, integrated structure design: by redesign, effectively shortened the length of water meter to the light water watch shell, be connected in series electromagnetic valve after, its physical dimension still with the light water epiphase with, have good interchangeability, be convenient to the old user and transform.
3, hot and cold water meter is general: owing to adopted advanced heat insulation means, make circuit and mechanical part have very high thermograde, when the actuating medium temperature is 100 ℃, still can satisfy the working temperature of circuit part.
4, mechanical counter and electronic counter show and deposit user friendly observation and comparison.
Each electric elements situation sees the following form among Fig. 3:
| U1 | AT90SI200 | Microprocessor |
| C12 | 33P | Electric capacity |
| C13 | 33P | Electric capacity |
| XTAL | 1MC | Crystal |
| Q2 | 2N7000 | Field effect transistor |
| D1 | 1N5242 | Stabilivolt |
| D2 | 1N5232 | Stabilivolt |
| R5 | 4.7K | Resistance |
| P1 | DS1307 | Deck |
| S4 | Thin film switch | |
| C3 | 33P | Electric capacity |
| R3 | 5.6M | Resistance |
| S3 | KJ-121 | Tongue tube |
| S2 | KJ-121 | Tongue tube |
| S1 | KJ-121 | Tongue tube |
| R2 | 5.6M | Resistance |
| R1 | 5.6M | Resistance |
| C1 | 0.47u | Electric capacity |
| C2 | 0.47u | Electric capacity |
| U2 | IMP811 | The uP manager |
| U3 | IMP811 | The uP manager |
| C10 | 0.47u | Electric capacity |
| S5 | Thin film switch | |
| Q1 | 9012 | Transistor |
| LCD | SMS0523 | LCD |
| U4 | TPS76038 | Power supervisor |
| C11 | 4700u | Electric capacity |
| BATTERY | 2CR5 | Lithium battery |
| C4 | 4700u | Electric capacity |
| C5 | 0.47u | Electric capacity |
| C6 | 0.47u | Electric capacity |
| C7 | 0.47u | Electric capacity |
| C8 | 0.47u | Electric capacity |
| C9 | 0.47u | Electric capacity |
| P2 | CD-PAN4 | Plug |
| U5 | SN75453B | Driver |
Claims (3)
1, a kind of smart card water meter, include table body, shell, water inlet pipe, rising pipe, register, circuit box and circuit part, it is characterized in that: chip microprocessor respectively with " i Button " deck, close valve key, be electrically connected with water sensor, start key, LCD display and solenoid valve.
2,, it is characterized in that chip microprocessor also is electrically connected with external magnetic field detecting sensor and undervoltage detection circuit as the said smart card water meter of claim 1.
3,, it is characterized in that between water gauge body, electromagnetic valve and watermeter shell, being filled with thermofin as the said smart card water meter of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00244869 CN2445300Y (en) | 2000-10-31 | 2000-10-31 | Intelligent card water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00244869 CN2445300Y (en) | 2000-10-31 | 2000-10-31 | Intelligent card water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2445300Y true CN2445300Y (en) | 2001-08-29 |
Family
ID=33604467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00244869 Expired - Fee Related CN2445300Y (en) | 2000-10-31 | 2000-10-31 | Intelligent card water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2445300Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279986A (en) * | 2011-04-20 | 2011-12-14 | 哈尔滨工程大学三金高新技术有限责任公司 | Long-life radio frequency integrated circuit (IC) card water gauge |
| CN104252744A (en) * | 2014-07-25 | 2014-12-31 | 安徽恩米特微电子股份有限公司 | Power supply device of intelligent water meter |
-
2000
- 2000-10-31 CN CN 00244869 patent/CN2445300Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279986A (en) * | 2011-04-20 | 2011-12-14 | 哈尔滨工程大学三金高新技术有限责任公司 | Long-life radio frequency integrated circuit (IC) card water gauge |
| CN104252744A (en) * | 2014-07-25 | 2014-12-31 | 安徽恩米特微电子股份有限公司 | Power supply device of intelligent water meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |