CN202084104U - IC (Integrated Circuit) card intelligent gas meter capable of utilizing gas alarm switching valve - Google Patents
IC (Integrated Circuit) card intelligent gas meter capable of utilizing gas alarm switching valve Download PDFInfo
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- CN202084104U CN202084104U CN2011201172100U CN201120117210U CN202084104U CN 202084104 U CN202084104 U CN 202084104U CN 2011201172100 U CN2011201172100 U CN 2011201172100U CN 201120117210 U CN201120117210 U CN 201120117210U CN 202084104 U CN202084104 U CN 202084104U
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Abstract
The utility model relates to an IC card intelligent gas meter capable of utilizing a gas alarm switching valve, wherein the gas meter comprise a gas base meter (1); a control circuit board (4) is installed in the gas base meter; the control circuit board is respectively connected with a signal detector (2), a mechanical counter (3) and a gas alarm input interface (6); an IC card base (7) is installed in the gas base meter, and a battery case (8) is installed on the gas base meter. The IC card intelligent gas meter is used as an intelligent gas meter which can be connected with a gas alarm.
Description
Technical field:
The utility model relates to a kind of IC-card intelligent gas meter of available fuel gas alarm switch valve.
Background technology:
Some is not with combustion gas body warning input interface existing IC-card gas meter, flow meter, and some gas meter, flow meters have the fuel gas alarm input interface, also are the switching value input is only arranged, and only realize the function of reporting to the police.Promptly when fuel gas alarm was reported to the police, the relay contact in the alarm was connected, after gas meter, flow meter receives this signal, and valve-off.(alerting signal cancel back) in the time of need opening valve, needs plug-in card, or takes off battery, refill battery after, valve open.
Existing gas meter, flow meter product can not be realized being powered by combustion gas body alarm.
Summary of the invention:
The purpose of this utility model is to provide a kind of IC-card intelligent gas meter of available fuel gas alarm switch valve, fuel gas alarm is connected with gas meter, flow meter, and can use the motorized valve of IC-card gas meter, flow meter inside, close gas circuit, it connects signal realizes by coded system, and not only can realize reporting to the police and close the valve function, also can realize driving valve and being that gas meter, flow meter is powered with flammable gas alarm with fuel gas alarm control, save battery, prolong battery serviceable life.
Above-mentioned purpose realizes by following technical scheme:
The IC-card intelligent gas meter of available fuel gas alarm switch valve, its composition comprises: the combustion gas base table, control circuit board is installed in described combustion gas base table the inside, described control circuit board connects signal detector, mechanical counter and fuel gas alarm input interface respectively, the IC-card seat is installed in described combustion gas base table the inside, has battery case on the described combustion gas base table.
The IC-card intelligent gas meter of described available fuel gas alarm switch valve, described control circuit board comprises CPU, and described CPU connects power circuit, Measuring and testing circuit, valve controling circuit, Card Reader circuit, warning input circuit and liquid crystal display circuit respectively.
Beneficial effect:
1. the utility model is connected fuel gas alarm with gas meter, flow meter, and can use the motorized valve of IC-card gas meter, flow meter inside, close gas circuit, it connects signal and realizes by coded system, and pass valve function not only can realize reporting to the police, also can realize driving valve and, saving battery prolongation battery serviceable life with the power supply of flammable gas alarm position gas meter, flow meter with combustible gas alarm control.
2. the output signal of fuel gas alarm is that peak value is the square wave coded signal of 8V, and this crest voltage is higher than battery voltage, can give capacitor C 3 chargings of gas meter, flow meter, for gas meter, flow meter provides electric weight.
3. IC-card seat of the present utility model has used resistance R 20 ~ R24, and the IO mouth of CPU is protected, and damages electric elements after control IC-card seat inserts sheet metal.
4. the utility model uses diode D3, to the control circuit power supply, can be implemented under the situation of not using dry cell, and the IC-card gas meter, flow meter can operate as normal.
5. the low-power consumption mode is all adopted in the design of the utility model entire circuit, makes control circuit when static (CPU does not quit work when having incident to take place), and electric current is below 6uA.
Description of drawings:
Accompanying drawing 1 is a main TV structure synoptic diagram of the present utility model.
Accompanying drawing 2 is vertical views of the present utility model.
Accompanying drawing 3 is left views of the present utility model.
Accompanying drawing 4 is circuit theory diagrams of the present utility model.
Embodiment:
Embodiment 1:
As Figure 1-3, the IC-card intelligent gas meter of available combustible gas alarm switch valve, its composition comprises: combustion gas base table 1, control circuit board 4 is installed in described combustion gas base table the inside, described control circuit board connects signal detector 2, mechanical counter 3 and fuel gas alarm input interface 6 respectively, IC-card seat 7 is installed in described combustion gas base table the inside, has battery case 8 on the described combustion gas base table.
Embodiment 2:
As shown in Figure 4, the IC-card intelligent gas meter of described available fuel gas alarm switch valve, described control circuit board comprises CPU, and described CPU connects power circuit, Measuring and testing circuit, valve controling circuit, Card Reader circuit, warning input circuit and liquid crystal display circuit respectively.
The circuit description of each several part is as follows:
Power circuit: No. 5 dry cell power supplies of four joints are arranged, voltage 6V, through choked flow diode D2, to capacitor C 3 chargings, C3 is the large bulk capacitance of 10000uF, when taking off battery, the electric weight that C3 stores can guarantee the valve closing with gas meter, flow meter.After the voltage stabilizing of power supply process HT7133 integrated regulator, output 3.3V voltage uses for other circuit.
If external fuel gas alarm, the square wave ceiling voltage 8V of fuel gas alarm output charges to C3 by D1, for gas meter, flow meter provides power supply.
HT7050 is used to detect cell voltage, output high level when cell voltage is higher than 5.0V, output low level when cell voltage is lower than 5.0V is with this signal input CPU(EM78P469), when voltage was low, valve-off stopped air feed.When cell voltage is higher than 5.0V, just allow to open valve, use combustion gas.
The Measuring and testing circuit: the Measuring and testing circuit is made up of tongue tube K1, the K2 and auxiliary circuit R8, R9, R10, the R11 that are installed on the gas meter, flow meter counter.When gas-flow was crossed gas meter, flow meter, counter rotated, and permanent magnet is housed on the runner, when magnet turns near the tongue tube, and reed switch conduction, when magnet left tongue tube, tongue tube disconnected.K1, K2 are installed in the both sides of magnet runner respectively, and when magnet rotated, K1, K2 will take turns conducting, and this signal is input to CPU, and CPU carries out stored count to signal.The 52(OUT1 of CPU) pin and 54(OUT2) pin output high level, R8, R10 draws high voltage, R9, R11 is an input resistance, during the K1 conducting, 53(IN1) pin low level is when K1 disconnects, 53(IN1) pin high level, during same K2 conducting, 55(IN2) pin low level is when K2 disconnects, 55(IN2) pin high level, 53(IN1), 55(IN2) pin is the interruption of CPU, when K1 or K2 connect, makes the CPU generation interrupt corresponding, and CPU is waken up from dormant state, enter duty, to the input signal counting, after finishing, input state with IN1, export on OUT1, the state of IN2 is exported on OUT2, like this at R8, R9, R10, R11 is last to be passed through with regard to not having electric current, can reduce power consumption.CPU enters into dormant state then.
Valve controling circuit: valve controling circuit is made up of the bridge-type output circuit and the signal deteching circuit that puts in place.V1, V2, V5, V6 form the brachium pontis of output bridge, when 62 pin of CPU are exported high level, and V4, V1, V6 conducting, output forward current, valve open; If during 63 pin of CPU output high level, V3, V2, V5 conducting, output inverse current, valve closing.
Need to prove, the motor valve that this product uses, this valve pipe closes about 0.3s of time, and duration of valve opening was less than 3 seconds.After valve opened or closed and puts in place, motor-driven can be skidded automatically, the vexed car phenomenon of motor can not occur.
The Card Reader circuit: the Card Reader circuit adopts general card reading module, and triode V7 is to the card reading module powered switch, during 42 pin output low levels, and the V7 conducting, IC-card powers on, and 40,39,38 pin of CPU are control signals of IC-card.What this equipment used is IC-card 4428 cards.41 pin of CPU are that plug-in card detects, and after IC-card inserted deck, 41 pin of CPU became low level, and CPU receives the pin level variable signal, starts card reading module, and starts the Card Reader program, carry out the read-write card operation, after Card Reader is finished, close the IC-card power supply.R20, R21, R22, R23 resistance protection internal circuit at the IC-card groove, can protect internal circuit can not damage when inserting sheet metal.
Warning circuit: warning circuit is by alarm output square wave coded signal, and when 50 pin of CPU received alerting signal, gas meter, flow meter closed valve, and when receiving the exploitation signal, gas meter, flow meter (when the residue tolerance is arranged) is driven valve.At ordinary times, receive the connection signal, the electric current of this signal can make not consumes power of battery altogether to gas meter, flow meter work.
Liquid crystal display circuit and cpu circuit: LCD Controller and cpu circuit are formed: there is liquid crystal display drive circuit this single-chip microcomputer inside, and corresponding memory is put 1, and corresponding display segment is shown.The operation of the programmed control total system of CPU, data recording, counting accumulative total, data presentation, work such as Card Reader decoding.CPU is the core of water meter control system.
Claims (2)
1. the IC-card intelligent gas meter of an available fuel gas alarm switch valve, its composition comprises: the combustion gas base table, it is characterized in that: control circuit board is installed in described combustion gas base table the inside, described control circuit board connects signal detector, mechanical counter and fuel gas alarm input interface respectively, the IC-card seat is installed in described combustion gas base table the inside, has battery case on the described combustion gas base table.
2. the IC-card intelligent gas meter of available fuel gas alarm switch valve according to claim 1, it is characterized in that: described control circuit board comprises CPU, and described CPU connects power circuit, Measuring and testing circuit, valve controling circuit, Card Reader circuit, warning input circuit and liquid crystal display circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201172100U CN202084104U (en) | 2011-04-20 | 2011-04-20 | IC (Integrated Circuit) card intelligent gas meter capable of utilizing gas alarm switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201172100U CN202084104U (en) | 2011-04-20 | 2011-04-20 | IC (Integrated Circuit) card intelligent gas meter capable of utilizing gas alarm switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084104U true CN202084104U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201172100U Expired - Fee Related CN202084104U (en) | 2011-04-20 | 2011-04-20 | IC (Integrated Circuit) card intelligent gas meter capable of utilizing gas alarm switching valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169612A (en) * | 2011-04-20 | 2011-08-31 | 哈尔滨工程大学三金高新技术有限责任公司 | IC card intelligent gas meter capable of using gas alarm switch valve |
-
2011
- 2011-04-20 CN CN2011201172100U patent/CN202084104U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169612A (en) * | 2011-04-20 | 2011-08-31 | 哈尔滨工程大学三金高新技术有限责任公司 | IC card intelligent gas meter capable of using gas alarm switch valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20150420 |
|
| EXPY | Termination of patent right or utility model |