CN2286900Y

CN2286900Y - Intelligent IC card precharging type gas-flow charger

Info

Publication number: CN2286900Y
Application number: CN 96221546
Authority: CN
Inventors: 姜跃炜; 王成芳
Original assignee: Fu'an Anhui Instrument Development Co
Current assignee: Fu'an Anhui Instrument Development Co
Priority date: 1996-09-13
Filing date: 1996-09-13
Publication date: 1998-07-29
Anticipated expiration: 2006-09-13

Abstract

The utility model relates to an intelligent IC card precharging type gas-flow charger which is combined with a diaphragm type gas meter. The utility model is composed of a diaphragm type gas meter, a non-contact type magnetoelectric sampling circuit and a gas flow charging device; a permanent magnet and a dry reed tube are arranged in a counting scale of the diaphragm type gas meter; the non-contact samples of the counting scale of the diaphragm type gas meter by the magnetoelectric sampling circuit in the diaphragm type gas meter can be processed by the gas flow charging device, and information can be transferred between users and a management department through IC cards, so that the prepayment management of purchased gas flow for the users can be realized. The utility model has the functions of pre-alarm, automatic gas cut-off, alarm for gas leakage, self-power supply, etc., and can become a replacement for diaphragm type gas meters.

Description

Intelligent IC-card pre-payment type tolerance taximeter

The utility model relates to a kind of tolerance message accounting, particularly a kind of pre-payment type taximeter,

Occupy domestic gas at present and mostly adopt diaphragm type gas meter, flow meter metering gas consumption.User elder generation gas, gas company is regularly checked meter, is adjusted to the user place, collects gas expense again.Every household has an ammeter for resident (user), and taking that civil gas management department nuclear table is received is very heavy, and it is a great problem that gas expense is in arrears with, and seriously influenced the production again of combustion gas industry.The purpose of this utility model is exactly now popular in the world IC-card technology and original diaphragm type gas meter, flow meter are organically combined and to be improved, providing a kind of makes things convenient for administrative authority and user to use, it is normal to guarantee that gas expense reclaims, prevent gas leak phenomenon, and good reliability, cost is low, can show tolerance at any time, has pre-alarm and multifunctional intelligent type IC-card pre-payment type tolerance taximeter such as die automatically.

According to above-mentioned purpose, the utility model utilizes following technical scheme, and the utility model one-piece construction is by diaphragm type gas meter, flow meter M, magnetoelectricity sample circuit IC ₁, tolerance message accounting C, the R of mechanism and power supply (generator and electric power storage) the device P that dies constitute magnetoelectricity sample circuit IC ₁Be placed in the diaphragm type gas meter, flow meter M, magnet and tongue tube noncontact realize the revolution of gas meter, flow meter counting scale is measured.Microcontroller PC and peripheral function circuit are arranged in the tolerance message accounting C, and they are hummer F, IC-card seat IC ₅, tolerance display D and various pilot lamp LED1, LED2, LED3, LED4.When IC-card inserted the IC-card seat, tolerance information entered in the storer of microcontroller PC.Magnetoelectricity receiver IC ₁Current signal is converted to voltage signal and passes through waveform shaping circuit IC ₂Count pulse is delivered to the counting mouth P3.4 of microcontroller PC, can draw institute's gas consumption thus, residue tolerance.Hummer F can carry out pre-alarm; Remind user institute that gas consumption is near the tolerance of buying.The R of mechanism that dies can cut off the source of the gas of gas meter, flow meter when institute's gas consumption reaches the tolerance of purchase.

The involved IC-card data of the utility model write, and promptly sell gas station system and are mainly used in and finish user cipher and purchase that tolerance is encrypted to be stored on the IC-card.

The utility model utilizes IC-card to combine with each subscriber's meter with the Fare Collection System of gas management department, realizes with gas management scientificly, and has following function:

1. the air feed of limiting the quantity of, it be by administrative authority by purchasing IC-card, stipulate every month basic gas consumption by different users, can pre-alarm when limiting the quantity of when gas consumption, arrive and can die automatically when limiting the quantity of, wait for once more by IC-card input tolerance information.

2. the user holds IC-card and can purchase gas to selling the gas station at any time, and IC-card is a family one card, is provided with code in the card, can not exchange, otherwise stop to sell gas.IC-card has encryption function, and anti-counterfeit capability is very strong.

3. gas leak gas, tolerance taximeter detect in case excessive, can die automatically.

4. gas-robbery resistence function, no matter rotating disk is just changeing or the count pulse that reverses all can produce, tolerance reduces in the same old way, can't steal gas.

5. adopt numeral to show, the sharpness height, except that the counting of diaphragm type gas meter, flow meter can show the tolerance, the tolerance display of tolerance message accounting also can show residue tolerance, accumulative total usefulness gas, as long as insert IC-card, just can show at any time, shows that being distinguished as 0.1 spends.

6. noncontact sampling, the sampling pulse number is by pilot lamp LED1 indication, and counting does not accurately change the original precision of gas meter, flow meter.

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is the utility model structure principle chart

Accompanying drawing 2 is the utility model embodiment circuit diagrams

Accompanying drawing 3 is that the utility model software is realized block diagram

Referring to Fig. 1: permanent magnet is installed on the diaphragm type gas meter, flow meter counting rotating disk, by tongue tube sample circuit IC among Fig. 2 ₁Reach the counting rotating disk and carry out noncontact metering sampling, after the microcontroller PC in Fig. 2 handled, tolerance display D can digitally show various tolerance, as institute's gas consumption, residue tolerance, accumulative total gas consumption.When IC-card inserts IC-card seat IC ₅In time, link to each other with microcontroller PC among Fig. 2, and at this moment, the tolerance information in the IC-card enters in the storer of microcontroller PC, and the utility model powers on and automatically resets is operate as normal.

Referring to Fig. 2: the utility model is mainly by magnetoelectricity sample circuit IC ₁Constitute with tolerance message accounting C.Magnetoelectricity sample circuit IC ₁Be made up of permanent magnet and dried spring, they are installed in the counter of gas meter, flow meter, and when the permanent magnet rotation of gas meter, flow meter counter, tongue tube can receive the magnetic force adhesive, produces voltage pulse signal, delivers to microcontroller PC counter P3.4.One microcontroller PC is arranged among the tolerance message accounting C, it is the central component of whole device, the R of mechanism that dies is realized by bistable state low-power consumption electromagnetic valve door, its input is pressed among Fig. 1 through diaphragm type gas meter, flow meter M, the air inlet road 1N of gas delivery, output (OUT) connects the gas meter, flow meter user side, and its control end meets the P3.4 of microcontroller PC through triode, the P1.5 mouth is according to the air inlet of the quick break-make diaphragm type of the instruction of microcontroller PC gas meter, flow meter M.The V of power supply (generating and electric power storage) device P and microcontroller PC _D, GND links to each other.Reset terminal RST among Fig. 2 enters normal operating conditions through resistance, electric capacity realization when going up automatically reseting of gas.IC-card inserts IC-card seat IC in figure (2) ₅The time, the tolerance display shows various tolerance, when residue tolerance during less than setting, word of every consumption is reported to the police once, purchases gas to remind the user, up to using up, dies and is indicated by D.Surpass certain setting value if leak gas, the while D that also dies is indicated to load and is lower than setting value continuation power supply again after a period of time.Alarm is made up of hummer and triode, links to each other with the P1.0 mouth of microcontroller PC by resistance R 10.Insert the IC-card in the IC-card seat IC5, the card internal memory contains the user cipher of having encrypted that writes and purchases tolerance under computer management system control.The serial data I/O line SDA of card and serial time clock line SDA are respectively by the IC-card seat (IC among Fig. 2 ₅) link to each other with P1.6 with the P1.7 of microcontroller PC, the tolerance display is realized by serial port TXD and the RXD of microprocessor PC.When from IC-card seat (IC ₅) in extract IC-card after, the number of turns that umber of pulse pilot lamp LED1 indication counter dish turns over.

The course of work of the present utility model, each user arrives first with gas management department and applies for intelligent IC-card pre-payment type tolerance expense device, obtain IC-card, sell the gas station and compile upward code to IC-card, according to tolerance that the user purchases, write in the IC-card after selling gas station system encryption, the user can insert IC-card the IC-card socket (IC of tolerance message accounting C ₅) in, the tolerance of purchasing just writes in the microcontroller PC, and the utility model gets final product operate as normal, along with the increase of gas consumption, residue tolerance constantly reduces, during near setting, hummer F is can automatic forecasting alert, and the user should hold IC-card and went to sell the gas station and buy gas this moment, then IC-card was inserted IC-card seat (IC ₅) in, institute's tolerance of purchasing and the addition of residue tolerance, diaphragm type gas meter, flow meter M works on, and this moment, IC-card was done the zero clearing processing.For the user who does not remove to purchase gas after the pre-alarm, tolerance reaches when limiting the quantity of, and the diaphragm type gas meter, flow meter can be died automatically.

Referring to Fig. 3: be that the utility model software is realized block diagram, the function of its realization is as follows:

1. deposit the read-write of purchasing content (personal code work, purchase tolerance) in the realization IC-card;

2. utilize Serial E ²ROM realizes the power down preservation of data, 10 years time;

3. pulse collection automatically, software filtering, reliable counting.

4.IC when card inserted gas meter, flow meter, group of four figures pipe showed residue tolerance, institute's gas consumption.

5. use up to 10 when following when purchasing tolerance, the alarm of hummer sounding, word of later every consumption is reported to the police once, purchases gas to remind the user.

6. after purchasing tolerance and using up, die automatically.

7. when surpassing setting value, and cut off air feed,, continue air feed again up to limiting when leaking gas less than setting value.

Claims

1. one kind by diaphragm type gas meter, flow meter M, magnetoelectricity sample circuit IC ₁, tolerance message accounting C, the bistable state low-power consumption electromagnetic valve intelligent IC-card pre-payment type tolerance taximeter that the R of mechanism and power supply (generator and electric power storage) device P constitutes of dying is characterized in that:

1) in the diaphragm type gas meter, flow meter M counting scale permanent magnet and tongue tube are housed;

2) magnetoelectricity sample circuit IC ₁Be installed in the diaphragm type gas meter, flow meter M;

3) be connected with the diaphragm type gas meter, flow meter with the tolerance message accounting that the peripheral function circuit is formed by microcontroller PC;

4) intelligent IC-card pre-payment type tolerance taximeter, all power supply drives small generator by counter axis, uses for rechargeable battery and a complete set of circuit.

2. by the described intelligent IC-card pre-payment type tolerance taximeter of claim 1, it is characterized in that the magnetoelectricity sample circuit IC in the diaphragm type gas meter, flow meter M ₁, form by permanent magnet and tongue tube, along with the rotation of counting scale, can receive voltage pulse signal and pass through waveform shaping circuit IC ₂Deliver to the P3.4 of microcontroller PC.

3. by the described intelligent IC-card pre-payment type tolerance taximeter of claim 1, it is characterized in that the serial data I/O line SDA of IC-card and serial clock SCK pass through IC-card socket IC respectively ₅Link to each other with P1.7, the P1.6 of microcontroller PC, the IC-card internal memory contains the user cipher of having encrypted that writes and purchases tolerance under computer management system control.

4. by the described intelligent IC-card pre-payment type tolerance taximeter of claim 1, it is characterized in that the bistable state low-power consumption electromagnetic valve RTXD of mechanism that dies links to each other with the tolerance display with RXD.The P3.3 of microcontroller PC connects gas sensor, and P1.0 then links to each other with hummer F by triode T.

5. by the described intelligent IC-card pre-payment type tolerance taximeter of claim 1, it is characterized in that tolerance taximeter C powers on to automatically reset, and enter normal operating conditions.When IC-card inserts IC-card seat IC ₅The time, show institute's gas consumption, purchase tolerance.When IC-card is extracted IC-card seat IC ₅The time, tolerance taximeter C is operate as normal still, and shows count pulse by LED1.

6. by the described intelligent IC-card pre-payment type tolerance taximeter of claim 1, it is characterized in that the whole power supplys of circuit drive small generator by counter axis, use for rechargeable battery and a complete set of circuit.