CN101281667A - Multi-point sampling, non-contact type IC card intellectual water meter - Google Patents
Multi-point sampling, non-contact type IC card intellectual water meter Download PDFInfo
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- CN101281667A CN101281667A CNA2008100252543A CN200810025254A CN101281667A CN 101281667 A CN101281667 A CN 101281667A CN A2008100252543 A CNA2008100252543 A CN A2008100252543A CN 200810025254 A CN200810025254 A CN 200810025254A CN 101281667 A CN101281667 A CN 101281667A
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Abstract
The invention discloses a multipoint sampling and non-contact type smart card intelligent water meter, characterized by including a water meter body (1), a main controler IC2, a readwrite card circuit, a control circuit, a sampling circuit and a display (2), wherein the sampling circuit is composed of a magnet arranged on the corresponding code wheel required to sample in the water meter body (1) and a magneto-dependent sensor arranged on one side of the code wheel without the magnet; the output of the sampling circuit is connected with the corresponding input end of the main controler IC2; the readwrite card circuit is inductively connected with the non-contact type IC card; the output of the readwrite card circuit is connected with the input end of the main controler IC2, the signal output end of which is connected with the input end of the control circuit; the output end of the control circuit controls the onoff of the valve on the intake pipe of the water meter body (1). The invention has strong anti-aggressivity, good stability and high reliability.
Description
Technical field
The present invention relates to a kind of water meter, particularly a kind of stable, reliable multi-point sampling, non-contact type IC card intellectual water meter.
Background technology
At present, along with the continuous growth of human society population, the continuous quickening of process of industrialization and the fast development of urban construction, urban water supply and management of the use of water systems face unprecedented pressure.Therefore, freshwater resources rationally, the effective development and use important topic that become international.Many at home cities all seriously lack under the situation of water resource, and a lot of areas all are faced with water rate and take over difficult problem, and people are not high to the consciousness of paid utilization water resource, and the input that city domestic sewage is handled continues to increase, and water use disputes are on the rise.Be to alleviate water and supply with contradiction, science, control water rationally, accurately, safely, realize standardization, automatic management, so the novel prepayment formula intellectual water meter and the demand of selling water management system are seemed very urgent.Though intellectual water meter has in the market also solved the problem of pre-payment to a certain extent, it is not strong in use also to exist anti-aggressiveness, and problems such as stable, poor reliability have brought new problem for urban water supply and management of the use of water system.
Summary of the invention
The objective of the invention is at existing intellectual water meter problems such as anti-aggressive not enough, stable, poor reliability, provide a kind of stable, multi-point sampling, sender reliably, multi-point sampling, the non-contact type IC card intellectual water meter of multichannel I/O input, output.
Technical scheme of the present invention is:
A kind of multi-point sampling, non-contact type IC card intellectual water meter, it is characterized in that it includes water gauge body, master controller IC2, the read-write card circuit, control circuit, valve, sample circuit and display, sample circuit is made of magnetite and magneto-dependent sensor, magnetite is arranged on the corresponding code-disc of required sampling in the water gauge body, magneto-dependent sensor is arranged on code-disc one side that is provided with magnetite, the output of sample circuit links to each other with the corresponding input end of master controller IC2, the read-write card circuit is connected with the non-contact IC card induction, the output of read-write card circuit links to each other with the input end of master controller IC2, the signal output part of master controller IC2 links to each other with the input end of control circuit, the break-make of valve on the output control water gauge body water inlet pipe pipeline of control circuit, the demonstration output terminal of master controller IC2 is connected with the display on being positioned at water gauge body.
Beneficial effect of the present invention:
1, the present invention has pre-payment, automatic charging function, realize pre-payment with contactless IC card as media, after the input water rate, the user can normally use, charge by the pairing reasonable price of each water yield section of of that month consumption, the user can check at any time that it is clear, clear to consume, reliable operation of the present invention, stability is high.
2, the present invention has the prompting warning function, and (system default is: 2m to be lower than the default warning water yield in surplus water
3) time, the self-closing valve door alarm can remind the user in time to supplement with money.
3, good confidentiality of the present invention is opened an account in case password dynamically arranges, and water system fuzzy control complete monitoring is sold in all invalid and prompting of other cards, a table one card, and not reproducible, security is good.
4, the present invention has the under-voltage protection function, when cell voltage during, display prompts low-voltage less than 3.0V, and storage running data automatically, valve-off is changed the battery late gate and is opened automatically, and the data of former storage remain valid.
5, anti-aggressiveness of the present invention is strong, and non-contact IC card adopts the wireless mode data transmission, does not have any exposed electrode, and outside highfield can not be attacked it, thoroughly solves waterproof, protection against the tide, an attack protection difficult problem.
6, the error of indication of the present invention is little, does not extremely comprise low district ± 5% of the flow of demarcating from minimum flow; From comprising that the boundary flow is to height district ± 2% that comprised current-carrying capacity.
7, working temperature of the present invention is at 0 ℃-40 ℃, work water pressure is that the 0.01-1.6Mpa pressure loss is less than 0.1MPa, the hydraulic pressure of high energy tolerance 1.6MPa, do not reveal in 15 minutes, internal circuit all adopts epoxy sealing, but all soak operate as normal in the water, thoroughly solve waterproof, leakproof problem.
8, reading accuracy height of the present invention, scope are wide, least count: 0.0001m
3, full-scale reading: 9999.9999m
3
9, the data retention period limit was greater than 50 years in the card of the present invention, and access times are greater than 100000 times, and magneto sensor magnetic damped cycle was greater than 50 years in the card.
Description of drawings
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is a water gauge body schematic surface of the present invention.
Fig. 3 is an electrical schematic diagram of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Multi-point sampling of the present invention, non-contact type IC card intellectual water meter, its principle as Figure 1-3, it includes water gauge body 1, master controller IC2 (model can be MSP430F413), the read-write card circuit, control circuit, valve, sample circuit and display, sample circuit is made of magnetite and magneto-dependent sensor, magnetite is arranged on the corresponding code-disc of required sampling in the water gauge body 1, magneto-dependent sensor is arranged on code-disc one side that is provided with magnetite, the output of sample circuit links to each other with the corresponding input end of master controller IC2, the read-write card circuit is connected with the non-contact IC card induction, the output of read-write card circuit links to each other with the input end of master controller IC2, the signal output part of master controller IC2 links to each other with the input end of control circuit, the break-make of valve on the output of the control circuit control water gauge body 1 water inlet pipe pipeline, the demonstration output terminal of master controller IC2 are connected with display 2 on being positioned at water gauge body 1 (sees Fig. 1,2).
Among the present invention, magneto-dependent sensor can be selected tongue tube, Hall element or Wei Gen etc. for use, and they can be used alone, but also also mix together, and the magneto-dependent sensor among Fig. 2,3 all is example with the tongue tube.
Magnetite off-centre of the present invention is installed on the corresponding code-disc of required sampling in the water gauge body 1.
As Fig. 2,3, the present invention is at the 0.001m of water gauge body 1
3 Bit code dish 3,0.01m
3 Bit code dish 4 and 0.1m
3The both sides of bit code dish 5 all are provided with tongue tube 6,7,8 in pairs, and the output terminal of tongue tube 6,7,8 links to each other with the corresponding input end of master controller IC2.Resistance R 19, capacitor C 10, resistance R 20, capacitor C 11, resistance R 21, capacitor C 12 constitute tongue tube 6,7 respectively, and 8 weakening circuit prevents the switching signal shake of tongue tube.
As Fig. 3, read-write card circuit of the present invention comprises the promotion circuit, the vibration sensor circuit, peak-detector circuit and shaping circuit, promote circuit by triode U1 (model can be 9014), U2 (model can be 9015), current-limiting resistance R6, R7 and resistance R 5 constitute, the vibration sensor circuit is by inductance L, resistance R 17 and capacitor C 8 constitute, it is a series connection resonant circuit, frequency range is 125KHz ± 5%, peak-detector circuit is by diode D1, resistance R 18 and capacitor C 9 constitute, shaping circuit is by amplifier ic chip 1 (model can be LM393), resistance R 8-R16 and capacitor C 2-C7 constitute, the input that promotes circuit is that the input of read-write card circuit is drawn the signal output part that meets master controller IC2 from an end of resistance R 5, the output that promotes circuit is from triode U1, the emitter resistance R6 of U2, it is an end of inductance L that the tie point of R7 is drawn the signal input part that connects the vibration sensor circuit, the induction of vibration sensor circuit receives the signal of non-contact IC card, the signal output part of vibration sensor circuit is from capacitor C 8, the tie point of resistance R 17 and inductance L is drawn the anode that the signal input part that connects peak-detector circuit is diode D1, the output terminal of peak-detector circuit is drawn the end that the input end that connects shaping circuit is R16 from the negative electrode of diode D1, and the output terminal of shaping circuit is drawn the corresponding input end that meets master controller IC2 from the pin 1 of amplifier ic chip 1.
Control circuit of the present invention as shown in Figure 3, it includes field effect transistor T1 (model can be W04), T2 (model can be T06), T3 (model can be T06), T4 (model can be W04), T5 (model can be W04), T6 (model can be W04), resistance R 1-R4, capacitor C 1 and motor M, the input signal of control circuit is introduced the signal output part that meets master controller IC2 by resistance R 1 and R4, the output of control circuit links to each other with motor M, motor M is by speed gear by-pass valve control location switch 10,11 break-make, valve location switch 10,11 output links to each other with master controller IC2, and valve is positioned on the pipeline of water meter water inlet pipe.Valve also can adopt solenoid valve, and correspondent control circuits adopts the circuit of control electromagnetic valve break-make.
The induction syndeton of read-write card circuit of the present invention and non-contact IC card is, in the read-write card circuit vibration sensor circuit inductance L near be provided with tongue tube 9, the output of tongue tube 9 links to each other with the corresponding input/output terminal of master controller IC2, resistance R 24, capacitor C 13 constitute the weakening circuit of tongue tube 9, prevent the switching signal shake (see figure 3) of tongue tube 9.
During concrete enforcement:
Power unit of the present invention, battery-powered (3.6V lithium battery) R311H301C (power supply low voltage monitoring chip) monitoring voltage such as user's battery electric quantity deficiency will and be told master controller IC2 by its monitoring.Master controller IC2 gave a signal opening power of P2.0 low voltage monitoring chip (R311H301C) work every one minute, R311H301C delivers to the master controller (see figure 3) with the voltage condition of monitoring by P1.7 (I/O) mouth of master controller IC2.
The display 2 that the present invention is positioned on the water gauge body 1 adopts 24 sections LCD that directly promoted by master controller IC2.
Sample circuit of the present invention divides three points to gather the code-disc signal of water gauge body 1.Code-disc divides 0.0001m
3, 0.001m
3, 0.01m
3, 0.1m
3Four needle dials, 0.001m therein
3, 0.01m
3, 0.1m
3Setting-up eccentricity magnetite respectively on three pointer code- discs 3,4,5, when the eccentric magnetite on the work code-disc during near its corresponding tongue tube, this corresponding tongue tube is with closure.When magnetite leaves, this corresponding tongue tube will disconnect, and produce switching signal thus.This switching signal is delivered to the corresponding input end of master controller IC2 (when working as tongue tube 6, deliver to the input end P1.1 mouth of master controller IC2, during tongue tube 7 work, deliver to the input end P1.0 mouth of master controller IC2, during tongue tube 8 work, deliver to the input end P2.1 mouth of master controller IC2).Owing to adopted multi-point sampling, and the pulse value of sampling between 3 has 10 times relation, therefore can effectively count the filtering malicious interference by the analyzing and processing of master controller IC2.
The present invention is in the electric weight deficiency, and mistake is swiped the card, and when stealing operation such as water, can carry out audible alarm.
The audible alarm circuit comprises hummer Y, field effect transistor T7 and resistance R 25, passes through promotion field effect transistor T7 by the input/output port P2.5 output signal of master controller IC2 and promotes to make hummer Y warning (see figure 3).
Control circuit of the present invention, when user's water yield uses up automatic-closing valve, master controller IC2 is by input/output port P6.6, and P6.7 output control signal (opening or closing) is through the control circuit of six field effect transistor T1-T6 compositions, and pushing motor M opens or valve-off.The location switch 10,11 whether valve is closed or opened by valve internal detects, and delivers to the input/output port P6.4 of master controller IC2, P6.5 (see figure 3) respectively.
When user card punching, by the inductance L in the induction of the induction magnetite in the non-contact IC card read-write card circuit, and warp " Card Reader switch " (being tongue tube 9) delivered to signal in the P1.5 mouth of master controller IC2, notice master controller IC2 user begins to have swiped the card, master controller IC2 is from P1.2 mouth outputting oscillation signal, by triode U1 (model can be 9014), the promotion circuit that U2 (model can be 9015) forms, oscillator signal is promoted to amplify, by triode U1, the emitter-base bandgap grading of U2 is through current-limiting resistance R6, R7 delivers on the telefault L (antenna), and telefault L begins to launch radio frequency electromagnetic field.Therefore the coil in the non-contact IC card has been sensed electric flux in electromagnetic field, and electric flux is offered inside " read-write controller (chip) " makes its work.Inner " read-write controller " with canned data in the subscriber card (such as user's card number, supplement the water yield with money, supplement number of times etc. with money) by the coil-induced coil L that gives in the read-write card circuit in the non-contact IC card.Coil L in the read-write card circuit carries out detection by peak-detector circuit after sensing information, the waveform that detects is delivered to shaping circuit and is carried out shaping (being shaped to square wave), deliver to master controller IC2 then and carry out information processing, and user profile is presented on the display 2.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (8)
1, a kind of multi-point sampling, non-contact type IC card intellectual water meter, it is characterized in that it includes water gauge body (1), master controller IC2, the read-write card circuit, control circuit, sample circuit and display (2), sample circuit is made of magnetite and magneto-dependent sensor, magnetite is arranged on the corresponding code-disc of required sampling in the water gauge body (1), magneto-dependent sensor is arranged on code-disc one side that is provided with magnetite, the output of sample circuit links to each other with the corresponding input end of master controller IC2, the read-write card circuit is connected with the non-contact IC card induction, the output of read-write card circuit links to each other with the input end of master controller IC2, the signal output part of master controller IC2 links to each other with the input end of control circuit, the break-make of valve on the output of control circuit control water gauge body (1) the water inlet pipe pipeline, the demonstration output terminal of master controller IC2 is connected with display (2) on being positioned at water gauge body (1).
2, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter is characterized in that described magnetite off-centre is installed on the corresponding code-disc of required sampling in the water gauge body (1).
3, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter, it is characterized in that described magneto-dependent sensor is two, they are symmetricly set on the code-disc opposite side that has magnetite, and the output terminal of magneto-dependent sensor links to each other with the corresponding input end of master controller IC2.
4, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter is characterized in that the 0.001m in described water gauge body (1)
3Bit code dish (3), 0.01m
3Bit code dish (4) and 0.1m
3The both sides of bit code dish (5) all are provided with magneto-dependent sensor in pairs.
5, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter is characterized in that selecting tongue tube, Hall element or Wei root for use at described magneto-dependent sensor.
6, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter, it is characterized in that described read-write card circuit comprises the promotion circuit, the vibration sensor circuit, peak-detector circuit and shaping circuit, promote circuit by triode U1, U2, current-limiting resistance R6, R7 and resistance R 5 constitute, the vibration sensor circuit is by inductance L, resistance R 17 and capacitor C 8 constitute, peak-detector circuit is by diode D1, resistance R 18 and capacitor C 9 constitute, shaping circuit is by amplifier ic chip 1, resistance R 8-R16 and capacitor C 2-C7 constitute, the input that promotes circuit is that the input of read-write card circuit is drawn the signal output part that meets master controller IC2 from an end of resistance R 5, the output that promotes circuit is from triode U1, the emitter resistance R6 of U2, it is an end of inductance L that the tie point of R7 is drawn the signal input part that connects the vibration sensor circuit, the induction of vibration sensor circuit receives the signal of non-contact IC card, the signal output part of vibration sensor circuit is from capacitor C 8, the tie point of resistance R 17 and inductance L is drawn the anode that the signal input part that connects peak-detector circuit is diode D1, the output terminal of peak-detector circuit is drawn the end that the input end that connects shaping circuit is R16 from the negative electrode of diode D1, and the output terminal of shaping circuit is drawn the corresponding input end that meets master controller IC2 from the pin 1 of amplifier ic chip 1.
7, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter, it is characterized in that described control circuit includes field effect transistor T1, T2, T3, T4, T5, T6, resistance R 1-R4, capacitor C 1 and motor, the input signal of control circuit is introduced the signal output part that meets master controller IC2 by resistance R 1 and R4, the output of control circuit links to each other with motor, motor is by the break-make of speed gear by-pass valve control location switch (10), (11), and the output of valve location switch (10), (11) links to each other with master controller IC2.
8, multi-point sampling according to claim 1, non-contact type IC card intellectual water meter, the induction syndeton that it is characterized in that described read-write card circuit and non-contact IC card is, be provided with magneto-dependent sensor near the inductance L in the read-write card circuit, this magneto-dependent sensor output links to each other with the corresponding input/output terminal of master controller IC2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100252543A CN101281667B (en) | 2008-05-07 | 2008-05-07 | Multi-point sampling, non-contact type IC card intellectual water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100252543A CN101281667B (en) | 2008-05-07 | 2008-05-07 | Multi-point sampling, non-contact type IC card intellectual water meter |
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| Publication Number | Publication Date |
|---|---|
| CN101281667A true CN101281667A (en) | 2008-10-08 |
| CN101281667B CN101281667B (en) | 2010-09-22 |
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|---|---|---|---|
| CN2008100252543A Expired - Fee Related CN101281667B (en) | 2008-05-07 | 2008-05-07 | Multi-point sampling, non-contact type IC card intellectual water meter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794004A (en) * | 2014-03-03 | 2014-05-14 | 徐州君兴电子科技有限公司 | Water meter, with M_bus data remote transmission function, used for tiered pricing |
| CN104075765A (en) * | 2014-07-21 | 2014-10-01 | 江苏赛达电子科技有限公司 | Triple impulse sampling remote water meter |
| CN104751572A (en) * | 2015-04-04 | 2015-07-01 | 西安维斯达仪器仪表有限公司 | Handheld IC card reading-writing device for gas meter |
| CN105488913A (en) * | 2015-12-16 | 2016-04-13 | 西安航天计量测试研究所 | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method |
| CN105869291A (en) * | 2016-05-24 | 2016-08-17 | 南宁市茂百科技有限公司 | Intelligent water meter with automatic meter reading function |
-
2008
- 2008-05-07 CN CN2008100252543A patent/CN101281667B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794004A (en) * | 2014-03-03 | 2014-05-14 | 徐州君兴电子科技有限公司 | Water meter, with M_bus data remote transmission function, used for tiered pricing |
| CN103794004B (en) * | 2014-03-03 | 2016-03-09 | 徐州君兴电子科技有限公司 | A kind of water meter with M_bus bus data transporting function for ladder valuation |
| CN104075765A (en) * | 2014-07-21 | 2014-10-01 | 江苏赛达电子科技有限公司 | Triple impulse sampling remote water meter |
| CN104751572A (en) * | 2015-04-04 | 2015-07-01 | 西安维斯达仪器仪表有限公司 | Handheld IC card reading-writing device for gas meter |
| CN105488913A (en) * | 2015-12-16 | 2016-04-13 | 西安航天计量测试研究所 | One-card and multi-meter multi-mode charging radio frequency card prepaid intelligent water meter and charging method |
| CN105869291A (en) * | 2016-05-24 | 2016-08-17 | 南宁市茂百科技有限公司 | Intelligent water meter with automatic meter reading function |
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|---|---|
| CN101281667B (en) | 2010-09-22 |
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Effective date of registration: 20161205 Address after: 221400 Xinyi City, Jiangsu Province Economic and Technological Development Zone, Xuzhou Patentee after: Jiangsu third occasion Electronics Co., Ltd. Address before: 221400 Jiangsu city of Xuzhou province Xinyi economic and Technological Development Zone Jiangsu Xuzhou Bingchen Electronics Co. Ltd. Patentee before: Wu Xingzhong |
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Granted publication date: 20100922 Termination date: 20190507 |
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