CN2478081Y - IC card intelligent feeing rate and prefeeing industrial water meter - Google Patents
IC card intelligent feeing rate and prefeeing industrial water meter Download PDFInfo
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- CN2478081Y CN2478081Y CN 01234925 CN01234925U CN2478081Y CN 2478081 Y CN2478081 Y CN 2478081Y CN 01234925 CN01234925 CN 01234925 CN 01234925 U CN01234925 U CN 01234925U CN 2478081 Y CN2478081 Y CN 2478081Y
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Abstract
The utility model relates to an IC card intelligent multi-tariff prepaid industrial water meter, which is composed of an outdoor device and an indoor device; two devices are connected by a pair of twisted pair line for serial data communication; the outdoor device includes a vane-wheel industrial water meter and a signal gathering device, an electric valve and a controller, and the controller is based on single-chip computer; moreover, other circuit is also included, the indoor includes a controller based on single-chip computer, an IC card read-write circuit, an IC card, a real-time clock circuit, a storage circuit and a liquid crystal display circuit; the outdoor device and the indoor device are designed with a battery under-voltage measuring circuit. The utility model is provided with rational design, advantaged technology, complete function, fine performance and wide application.
Description
The utility model relates to a kind of industrial water meter, specifically is meant a kind of IC-card intelligent industrial water meter.
At present no matter industry or civilian water meter all are first waters, are regularly checked meter and charged by water supply department in the back, do not only formality trouble like this, need to drop into great amount of manpower, and water rate take over the input that lags behind water supply, even also often be in arrears with the phenomenon of water rate.And China is the country that water resource lacks, and many cities are the phenomenon of useful olighydria all, and using water wisely even water conservation have become the task of top priority with the protection water resource.Along with the deep development of market economy reform, water supply department presses for pay the fees the earlier way to manage of back water of implementation, to accelerate the withdrawal of currency from circulation of fund.In the place that water resource lacks, especially press for economic means saving and the water conservation amount of adopting, with the protection water resource.
The purpose of the utility model aims to provide a kind of manual metering, the pay the fees multiple rate pre-payment industry of IC-card intelligence water meter of quantitatively water, the different rates of different period Various Seasonal, scientific and reasonable, using water wisely of back, protection water resource, intelligent degree height, multiple functional, reliable operation earlier of need not.
Technical solution of the present utility model is: the multiple rate pre-payment industry of this IC-card intelligence water meter includes off-premises station and indoor set, carries out serial data communication so that twisted-pair feeder is connected between two machines, transmits various data and information mutually;
Off-premises station includes: on existing rotary wind type industry water meter measurement gear excircle a fritter permanent magnet is installed, the signal picker that sampling tongue tube and antimagnetic tongue tube are formed is installed on the next door of measurement gear; Electrically operated valve and controller, controller is based on one-chip computer, one-chip computer links to each other with the signal picker that includes sampling tongue tube and antimagnetic tongue tube by the anti-magnetic circuit of sampling, user's water consumption is measured, one-chip computer is by the Kai Heguan of either-rotation motor driving circuit control electrically operated valve, determine opening of electrically operated valve by the valve positioning circuit, close the position, one-chip computer carries out the both-way communication of various data and information by serial interface circuit and twisted-pair feeder and indoor set, one-chip computer is also made regular check on the voltage drop of lithium battery under the certain load electric current by the battery undervoltage detection circuit, judges whether to need to change battery;
Indoor set includes: be master controller with the one-chip computer; by the IC-card read/write circuit IC-card is carried out read-write operation; carry out multiple rate accounting by the time data that reads real time clock circuit in conjunction with the water consumption that off-premises station sends; one-chip computer sends various data and information to the liquid crystal display circuit demonstration; and make audible alarm by the buzzer circuit; the deposit data that the one-chip computer handle must be protected is at serial electrically rewritable read-only memory circuit; in outage; during under-voltage or fault; data can not lost; one-chip computer is by serial interface circuit and twisted-pair feeder and off-premises station communication; exchange various data and information mutually; one-chip computer is also made regular check on lithium battery by the battery undervoltage detection circuit, and brownout then needs to change battery.
The utility model utilization microelectric technique and micro-computer technology, revolve spiral type industry water meter and the IC-card intelligent controller combines with common, can measure and realize Based Intelligent Control and management to user's water consumption by multiple rate or single rate, this has just saved numerous and diverse formality of charging by manual metering at present.And can carry out the planning management of limitation water-feeding in the area of water supply gets by the distribution IC-card.Adopt multiple rate accounting system can stabilize " peak " water, encourage " low ebb " water, help accomplishing balanced water, to improve the efficient of supply equipment.Carry out the way to manage of charge back water earlier, make water really become commodity.Be beneficial to increase economic efficiency, reach using water wisely again, the purpose of protection water resource.Owing to adopted the one-chip computer and the integrated circuit of low-power consumption, and the clock initial value of use real time clock circuit and the technology that the rate parameter is imported by IC-card, save usually by the circuit component of key in data and the data input operation of trouble, therefore can be in the hope of high precision, high reliability, the stability of product.Owing to adopt the frame mode of indoor set and off-premises station, and off-premises station is complete waterproof sealing, therefore goes for the environment of various abominable humidities, and the user only needs operate indoor set and gets final product, and is convenient for users to use and operate.
Fig. 1 is the utility model structural principle block diagram
Fig. 2 is the utility model off-premises station signal picker mounting structure synoptic diagram
Fig. 3 is the utility model off-premises station circuit theory diagrams
Fig. 4 is the utility model indoor set circuit theory diagrams
Below in conjunction with drawings and Examples the technical solution of the utility model is described in further detail
Because the domestic industrial water meter overwhelming majority all is to adopt rotor water gauge at present, so design philosophy of the present utility model, be the intelligent controller and the electrically operated valve of core by installing one additional with the microcomputer exactly, existing helical vane type water meter is transformed into the transmission media of purchasing the water yield with IC-card as pre-payment, charge and control the intelligent industrial water meter of water consumption by the rate of water supply department regulation, to satisfy the actual needs of society.
Because industrial water meter is installed in the yard piping well usually, and be stamped thick and heavy cast iron or cement well lid, if all be installed in the piping shaft with water meter intelligent controller, the various information that show for daily reading and writing IC card and observation intellectual water meter are brought operational inconvenience, when therefore the utility model designs, intellectual water meter is divided into indoor set and off-premises station.Off-premises station comprises spiral type industry water meter and electrically operated valve and corresponding controller; It is the control core device with the one-chip computer that indoor set only is one.Carry out data communication by a pair of twisted-pair feeder between indoor set and the off-premises station, transmit various controls and data message mutually.
Below narrate design proposal of the present utility model and principle of work by off-premises station and indoor set respectively.
Block diagram and signal picker structural representation referring to Fig. 1, the utility model indoor unit and outdoor unit shown in Figure 2.The design proposal of off-premises station is as follows:
It is combined by existing common rotary wind type industry water meter (11) and newly-designed controller (12 to 111) two large divisions.Referring to Fig. 2,10 liters of (or 100 liters) measurement gears at existing industrial water meter (11) have been installed a fritter permanent magnet (14) near the position of excircle, the signal picker (15) that sampling tongue tube and antimagnetic tongue tube are formed is installed on the next door of 10 liters of (or 100 liters) measurement gears, antimagnetic tongue tube should be far away slightly apart from magnet than the sampling tongue tube, 10 liters of (or 100 liters) measurement gears are whenever circled, sample tongue tube with regard to adhesive once, and the not adhesive of antimagnetic tongue tube.The two poles of the earth of sampling tongue tube and antimagnetic tongue tube are wired to the anti-magnetic circuit (16) of sampling of controller, the water consumption and the anti-magnetic signal of industrial water meter are become pulse digital signal, these pulse digital signals are transferred to two input I/O mouths of one-chip computer (13) respectively, are carried out the data processing of water consumption or anti-magnetic signal by one-chip computer (13).The effect of antimagnetic tongue tube is to attempt to make the sampling tongue tube normally during break-make with magnet near the sampling tongue tube as the people, the anti-magnetic dry-reed that nestles up the sampling tongue tube is also with adhesive, after one-chip computer 3 receives the adhesive signal of antimagnetic tongue tube, with valve-off, stop going up to end and supply water, and record and sending a warning, so just can prevent that the someone from attempting to steal water.After one-chip computer (13) whenever collects a certain amount of water data, just water usage data is sent to indoor set by serial communication interface circuit (111), carry out data processing by indoor set, sent by indoor set and close valve signal and send single-chip microcomputer (13) to through serial interface circuit (111) when the user uses up institute's water yield of purchasing, single-chip microcomputer stops water supply by either-rotation motor driving circuit (18) control electrically operated valve (19) valve-off.Either-rotation motor driving circuit (18) is a drive circuit in bi-directional, the Guan Hekai of may command electrically operated valve (19), when the motorized valve open and close put in place, signal put in place to single-chip microcomputer (13) by valve positioning circuit (110) output open and close valve, stop the work of either-rotation motor driving circuit (18) by single-chip microcomputer (13).Off-premises station is designed to low-power consumption type circuit, working current when static has only several microamperes, so just can power to off-premises station as the power supply (12) of complete machine by lithium battery, for whether the electric capacity of judging lithium battery (12) runs low, whether designed battery undervoltage detection circuit (17) can periodic testing battery cell voltage under certain load current low excessively, low excessively as cell voltage, then close electrically operated valve, and send under-voltage information to indoor set, show and change battery information, general battery can be used 8-10.
The structure of indoor set and principle of work
Referring to indoor machine structure block diagram among Fig. 1, the power supply of indoor set (21) is a lithium battery, and it is powered to complete machine, is master controller with one-chip computer (22), by the interface of IC-card read/write circuit (24) as IC-card (23) and single-chip microcomputer (22), single-chip microcomputer is realized IC-card (23) is gone up contained data write by IC-card read/write circuit (24), and these data comprise encrypted message, customer identification information, purchase water yield information, rate information and debugging and parameter setting information
In order to realize many rate accountings, off-premises station has designed real time clock circuit (25), and monolithic can read year, month, day, hour, min, second information of real time clock at any time, and look-at-me can be set regularly wake single-chip microcomputer up and carry out periodic every work.Indoor set also is provided with serial electrically rewritable read-only memory (E
2PROM) circuit (26), can be at battery under-voltage or deposit data necessary when changing battery.Information such as the various duties of off-premises station and surplus water show with liquid crystal display circuit (27), and are provided with buzzer circuit (28) and use as audible alarm.Indoor single-chip microcomputer (22) is by serial communication interface circuit (29), and a pair of twisted-pair feeder and off-premises station carry out serial and pass through, transmit relevant data and information mutually, when opening circuit or other faults owing to connection, when two machines can not normal communication, indoor set will show communication failure information and report to the police that off-premises station will be closed electrically operated valve, stop to supply water, recover normal until communication.Indoor set also is designed to the low-power consumption type, and the complete machine static working current has only tens microamperes, therefore can be by lithium battery power supply, the same identical battery undervoltage detection circuit (210) that also designed with off-premises station, when battery runs low, valve-off, and send the under-voltage warning message.
The course of work of complete machine
The utility model is made up of off-premises station and indoor set two parts, off-premises station is in the same place by ring flange and bolted by rotary wind type industry water meter (11) and electrically operated valve (19), control circuit is fixed on the electrically operated valve (19), and with an outer cover the complete water proof sealing of control circuit is covered.Outer cover is provided with the aviation socket of two waterproof, and socket is used to be mounted on sampling and the antimagnetic tongue tube (15) on the spiral type industry water meter, and a socket is used to connect a pair of communication twisted-pair feeder.Off-premises station tightens together by ring flange and water supply line, and electrically operated valve is closed during original state.Indoor set then can be placed on indoor convenient place, indoor set also is provided with an aviation socket and is used to connect the communication twisted-pair feeder, and LCD (27) and IC-card socket arranged, the user is after buying the water consumption IC-card, IC-card is inserted in the IC-card seat of indoor set, the single-chip microcomputer of indoor set (2 2) will be by IC-card read/write circuit (24), at first proofread the encrypted message on the IC-card, password is correct, again the purchasing water yield is read in and the water yield of purchasing on the IC-card is wiped, go up in LCD (27) simultaneously and show institute's water yield of purchasing and surplus water, and valve opening signal and beginning water measurement signal being passed to off-premises station by serial communication interface circuit (29), off-premises station receives promptly opens that valve supplies water and beginning water measurement amount after this information.If what the user inserted is dead card even metal card, then single-chip microcomputer is refused read-write card, and shows wrong card information.
Off-premises station promptly begins to detect water consumption after opening valve, the permanent magnet (14) on being installed in 10 liters in water meter (or 100 liters) measurement gear is when whenever turning around, and sampling tongue tube closure once illustrates has used 100 liters of (or 1M
3) water, off-premises station will send these water data to indoor set by serial communication interface (111), after indoor set receives water consumption information, just carry out data processing, read the temporal information of real time clock circuit (25) earlier, basis rate at that time deducts the water yield and the demonstration of the corresponding rate of having used up from the water yield of being bought (or surplus water) again.When surplus water is purchased the card water yield less than the prompting of setting, LCD (27) will show " please purchase card " information and with aural signal, submit to the user to buy the water IC-card again.When the user has used up institute when purchasing the water yield, the indoor set valve signal of will checking on is sent to off-premises station, and off-premises station is a valve-off after receiving shutdown signal, stops to supply water, and after the user purchases Ka Jing again and is input to indoor set, can open valve supply water again.When the user did not use up the water yield of purchasing as yet and buys neocaine again and import indoor set, single-chip microcomputer was newly purchased the water yield on can automatically surplus water being added up.When the people attempts to steal water near the sampling tongue tube with the operate as normal of destroying the sampling tongue tube with magnet, also can impel antimagnetic tongue tube closure near the sampling tongue tube, single-chip microcomputer in the off-premises station will cut out electrically operated valve and stop to supply water after receiving this signal, and this information is sent to indoor set shows, report to the police, and storage, drive magnet away even after this move, off-premises station can not resume water supply yet, just can resume water supply after must handling by water supply department, so just can prevent effectively that surreptitiously water is attempted.
The communication of indoor set and off-premises station is semiduplex, i.e. communication is two-way, but the same time is only transmitted the data of a direction.When whenever connection opens circuit because of artificial or other reasons, or because of interface circuit fault correctly during communication, off-premises station stops valve-off supplying water, indoor set will show communication failure information and with audible alarm, have only communication to recover normal, off-premises station just can reopen valve and resume water supply, and indoor set also could be removed alerting signal.
Indoor set all designs respectively with off-premises station identical battery voltage detection circuit, testing circuit is made up of voltage detecting integrated circuit and quantitative current driving circuit, in cycle regular hour, the specified rate current driving circuit passes to a fixed current, detect cell voltage by voltage detecting circuit then, when cell voltage is lower than regulation numerical value, the electric weight that battery is described runs low, if off-premises station, then off-premises station stops valve-off supplying water, and the under-voltage information of battery passed to indoor set, and show the under-voltage information of off-premises station and send acoustic alarm signal by indoor set, be replaced by new battery until off-premises station.If indoor set battery under-voltage, indoor set will show the under-voltage information of indoor set and send acoustic alarm signal, simultaneously the under-voltage information of indoor set be sent to off-premises station, and off-premises station also stops valve-off supplying water, until more finishing changing battery again.The life-span of general lithium battery can reach 8-10.
Indoor set is provided with real time clock circuit (25), and the setting of real time clock circuit initial value adopts special clock that card is set in the utility model, is used for real time clock is write initial value.Our specialized designs has been made a portable dingus of writing the clock setting card.This dingus has configured correct time.When needs are provided with initial time to indoor set, only need the clock setting card of special use is inserted in the deck of the dingus of writing Clock Card, then the clock setting of finishing writing time data is only transferred to, inserted the deck of indoor set immediately, can realize initial time setting the indoor set real time clock.The tariff period data are also imported by IC-card, and the input mode of this time data and multiple tariff data is accurately convenient, have saved common real time clock initial value and the multiple tariff data trouble by the keyboard input, also owing to save keyboard and also can simplify circuit and reduce cost.
The detailed description of off-premises station circuit
Be described in further detail below in conjunction with the circuit of drawings and Examples off-premises station of the present utility model:
Referring to Fig. 1 and Fig. 3: the power supply of off-premises station (12) is the lithium battery S of a 3.6V
1
Referring to Fig. 1 and Fig. 3: one-chip computer circuit (13) is by single-chip microcomputer U
2, crystal oscillator OC
1Reach and stablize capacitor C
1, C
2Form U
2Can adopt the one-chip computer of PIC16C63, this single-chip microcomputer fast operation, function is strong, low in energy consumption, I/O mouth driving force is big, and peripheral circuit is very simple, only needs by crystal oscillator and C
1, C
2Form the major clock oscillatory circuit and get final product, and asynchronous serial communication mouth and I are arranged
2The C bus interface.
Referring to Fig. 1 and Fig. 2: permanent magnet (14) is installed on the measurement gear that revolves spiral type industry water meter 10 liters (or 100 liters).
Referring to Fig. 1, Fig. 2 and Fig. 3: signal picker (15) is by sampling tongue tube J
1With antimagnetic tongue tube F
1Form 10 liters of measurement gear revolution 1 circles, sampling tongue tube J
1With regard to adhesive once, expression has 100 liters water consumption.Antimagnetic tongue tube F
1Be used for then preventing that the someone from attempting with magnet near J
1Allow J
1Keep adhesive and do not discharge, the metering of water consumption can not normally be carried out.This when attempting surreptitiously water behavior when occurring, because F
1Near J
1, work as J
1During adhesive, F
1Also, therefore just send surreptitiously water signal with adhesive.
Referring to Fig. 1, Fig. 3: the anti-magnetic circuit (16) of sampling is by pull-up resistor R
9, R
10Form, when tongue tube discharges, single-chip microcomputer U
2Corresponding input port be high level, when the tongue tube adhesive, single-chip microcomputer U
2Corresponding input port be low level, the saltus step meeting of this level is at single-chip microcomputer U
2Outside input I/O mouth produce look-at-me, wake the single-chip microcomputer U that is in dormant state up
2Carry out data processing.
Referring to Fig. 1, Fig. 3: undervoltage detection circuit (17) is by voltage inspection integrated circuit U
3, triode T
7And resistance R
11, R
12Form resistance R
11Be T
7Biasing resistance, be connected to single-chip microcomputer U
2I/O mouth RA0, R
12Be T
7Pull-up resistor.Single-chip microcomputer just makes I/O mouth RA every the regular hour
0The output high level, T
7With saturation conduction, the electric current that have a fixed amount this moment flows through R
12And T
7, the output voltage of battery will drop to and be lower than U when running low as the electric energy of battery 21 this moment
3Detection threshold voltage, U
3Output become low level by high level, single-chip microcomputer U
2I/O mouth R27 receive the negative saltus step of this level after, it is under-voltage just can to judge battery, can make under-voltage processing.
Referring to Fig. 1, Fig. 3: either-rotation motor driving circuit (18) is by triode T
1, T
2, T
3, T
4, T
5, T
6And resistance R
3, R
4, R
5, R
6, R
7, R
8Form, when the I/O of single-chip microcomputer mouth R11 output high level, R12 output low level, triode T
1, T
3, T
5Saturation conduction, triode T
2, T
4, T
6End, electric current is by the motor M of electrically operated valve (19)
11 end flow to 2 ends, motor is just changeing the pass valve, when electrically operated valve (19) is closed when putting in place valve positioning circuit (11
0) in pass valve position switch K
1Closure, single-chip microcomputer U
2I/O mouth RC
1After receiving low level signal, make its I/O mouth R11 output become low level, triode T
1, T
3, T
5Become and end, motor M
1Stop operating.Otherwise as single-chip microcomputer U
2I/O mouth R11 output low level, during R12 output high level, triode T
1, T
3, T
5End T
2, T
4, T
6Saturation conduction, electric current is by motor M
12 ends flow to 1 end, valve is left in motor counter-rotating, when driving valve and put in place, valve positioning circuit (11
0) in open valve position switch K
2Closure, single-chip microcomputer U
2I/O mouth RC
2After receiving low level signal, make its I/O mouth R12 output becoming low level triode T
2, T
4, T
6End M
1Stop operating.Valve positioning circuit (11
0) in R
1, R
2Be pull-up resistor.
Referring to Fig. 1, Fig. 3: serial interface circuit (111) is by integrated circuit U
1Form U
1Be the RS485 interface chip, U
1Transmission data-in port DI and receive data output end and be connected respectively to single-chip microcomputer U
2Serial asynchronous communication mouth RC
6And RC
7, U
1Transmission Enable Pin DE and receive Enable Pin RE then respectively by single-chip microcomputer U
2I/O mouth R21, R22 control.U
1Differential output, input end A, B via socket CZ
1Link to each other with communication cable, at single-chip microcomputer U
2Control realize down serial communication with indoor set.Off-premises station integrated circuit model: U1:RS485, U2:PIC16C63, U3:HT7033A.
The detailed description of indoor set circuit
Below in conjunction with drawings and Examples indoor set circuit of the present utility model is described in further detail:
Referring to Fig. 1, Fig. 4: the power supply of indoor set (21) is the lithium battery (S of 3.6V
1), (S
1) power to complete machine.
Referring to Fig. 1, Fig. 4: single chip circuit (22) is by one-chip computer U
2With crystal oscillator OC
1, stablize capacitor C
1, C
2Form one-chip computer U
2As the master controller of indoor set, commander's indoor set carries out operations.U
2Adopt the one-chip computer of same model with the single-chip microcomputer of off-premises station.Crystal oscillator OC
1Also use identical frequency with off-premises station.
Referring to Fig. 1, Fig. 4: IC-card (23) is loaded with various code datas, user profile, purchases water number certificate, various parameter setting information etc. as the media that transmits various data and information.IC-card is divided into the test chart of subscriber card and the setting of various tuning parameter, and IC-card read/write circuit (24) is by IC-card seat ICK
1And pull-up resistor row R
2And R
3Part resistance form, each pin of deck is connected to single-chip microcomputer U
2Corresponding I/O mouth.When IC-card inserts deck, by single-chip microcomputer U
2IC-card is carried out read-write operation.
Referring to Fig. 1, Fig. 4: real time clock circuit (25) is by serial realtime clock chip U
4With crystal oscillator OC
2Form crystal oscillator OC
2Be U
4Accurate oscillation frequency clock is provided.U
4Serial clock input end CLK and serial data mouth SDA be connected respectively to single-chip microcomputer U
2I/O mouth R23, R24, by single-chip microcomputer U
2Realization is to the real-time clock time data write.Real time clock U
4Interruption output connect single-chip microcomputer U
2I/O mouth R25, can regularly send look-at-me to single-chip microcomputer, wake up and be in dormant state single-chip microcomputer U
2Carry out operations necessary.Owing to be provided with real time clock, so the utility model can move the water consumption of different rates and charge according to the different periods, i.e. rate accounting again.
Referring to Fig. 1, Fig. 4: serial electrically rewritable read-only memory (26), by Serial E
2PROM chip U
5Form U
5Be a kind of I
2C bus chip 24LC01B, U
5Address wire A
0, 11,12 and OV join, make U
5The address be OOO, U
5I
2The C bus interface is connected to single-chip microcomputer U
2I
2C serial port RC
3, RC
4On, and by resistor chain R
2Pull-up resistor is provided.U
5Can store some data necessary, even remove power supply, the data that it is preserved can not lost yet.
Referring to Fig. 1, Fig. 4: LCD (27) is by Liquid Crystal Module LC
1Form LC
1Chip selection signal CS, serial clock input CLK, serial data line DI is connected respectively to single-chip microcomputer U
2Corresponding I/O mouth RC
1, RC
2And RC
4, by single-chip microcomputer U
2Control LC1 shows various data and information.
Referring to Fig. 1, Fig. 4, buzzer circuit (28) is by hummer F
1, triode T
1, resistance R
1Form.T
1The rate of doing work is amplified usefulness, R
1Be T
1Biasing resistance, be connected to single-chip microcomputer U
2I/O mouth R13 on, when R13 output high level, T
1Saturation conduction, aural signal is sent in the hummer energising.When the R13 output low level, T
1End hummer outage the stopping sound.
Referring to Fig. 1, Fig. 4: serial interface circuit (29), to form by U1, it and off-premises station are identical, please referring to the relative section of off-premises station.
Referring to Fig. 1, Fig. 4: undervoltage detection circuit (21
0) by voltage detecting integrated circuit U
3, triode T
7, resistance R
11, R
12Form, its circuit composition and principle of work and off-premises station are identical, just receive the different I/O mouth of single-chip microcomputer.Please referring to the related description of aforementioned off-premises station.
Indoor set integrated circuit model: U1:RS485, U2:PIC16C63, U3:HT7033A, U4:PCF85637, U5:24WCO1B/P.
Claims (4)
1, the multiple rate pre-payment industry of a kind of IC-card intelligence water meter is characterized in that including off-premises station and indoor set, carries out serial data communication with a pair of twisted-pair feeder connection between two machines, transmits various data and information mutually;
Off-premises station includes: on existing rotary wind type industry water meter measurement gear excircle a fritter permanent magnet is installed, the signal picker that sampling tongue tube and antimagnetic tongue tube are formed is installed on the next door of measurement gear; Electrically operated valve and controller, controller is based on one-chip computer, one-chip computer links to each other with the signal picker that includes sampling tongue tube and antimagnetic tongue tube by the anti-magnetic circuit of sampling, user's water consumption is measured, one-chip computer is by the Kai Heguan of either-rotation motor driving circuit control electrically operated valve, determine opening of electrically operated valve by the valve positioning circuit, close the position, one-chip computer carries out the both-way communication of various data and information by serial interface circuit and twisted-pair feeder and indoor set, one-chip computer is also made regular check on the voltage drop of lithium battery under the certain load electric current by the battery undervoltage detection circuit, judges whether to need to change battery;
Indoor set includes: be master controller with the one-chip computer; by the IC-card read/write circuit IC-card is carried out read-write operation; carry out multiple rate accounting by the time data that reads real time clock circuit in conjunction with the water consumption that off-premises station sends; one-chip computer sends various data and information to the liquid crystal display circuit demonstration; and make audible alarm by the buzzer circuit; the deposit data that the one-chip computer handle must be protected is at serial electrically rewritable read-only memory circuit; in outage; during under-voltage or fault; data can not lost; one-chip computer is by serial interface circuit and twisted-pair feeder and off-premises station communication; exchange various data and information mutually; one-chip computer is also made regular check on lithium battery by the battery undervoltage detection circuit, and brownout then needs to change battery.
2, the multiple rate pre-payment industry of IC-card intelligence according to claim 1 water meter, it is characterized in that off-premises station either-rotation motor driving circuit is the two-way contactless driving circuit of a kind of transistor, form by 6 transistors and 6 resistance, control motor and rotate and reverse.
3, the multiple rate pre-payment industry of IC-card intelligence according to claim 1 water meter, it is characterized in that indoor set has designed real time clock circuit, real time clock circuit is made up of serial real time clock integrated circuit (IC) chip and crystal oscillator, the time initial value of real time clock integrated circuit (IC) chip is controlled through one-chip computer by the clock setting IC-card of special use and is provided with, and the period and the rate of multiple rate also are provided with by the IC-card of special use.
4, the multiple rate pre-payment industry of IC-card intelligence according to claim 1 water meter, it is characterized in that off-premises station and indoor set have all been designed battery and owed testing circuit by lithium battery power supply, has identical circuit structure, by triode, the biasing resistance of triode, the transistor collector pull-up resistor, the voltage detecting integrated circuit is formed, I/O mouth by one-chip computer is regularly exported high level, drive the triode saturation conduction, flow through the electric current of some, the magnitude of voltage that whether is lower than regulation by voltage detecting integrated circuit detection battery both end voltage judges whether to need to change battery, and shows on liquid crystal display circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01234925 CN2478081Y (en) | 2001-04-19 | 2001-04-19 | IC card intelligent feeing rate and prefeeing industrial water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01234925 CN2478081Y (en) | 2001-04-19 | 2001-04-19 | IC card intelligent feeing rate and prefeeing industrial water meter |
Publications (1)
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| CN2478081Y true CN2478081Y (en) | 2002-02-20 |
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| CN 01234925 Expired - Fee Related CN2478081Y (en) | 2001-04-19 | 2001-04-19 | IC card intelligent feeing rate and prefeeing industrial water meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280086A (en) * | 2014-10-31 | 2015-01-14 | 成都秦川科技发展有限公司 | Gas meter provided with electronic temperature conversion device |
-
2001
- 2001-04-19 CN CN 01234925 patent/CN2478081Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280086A (en) * | 2014-10-31 | 2015-01-14 | 成都秦川科技发展有限公司 | Gas meter provided with electronic temperature conversion device |
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| 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 |