CN203630871U - IC (integrated circuit) card intelligence gas meter with fuel gas alerter interface - Google Patents
IC (integrated circuit) card intelligence gas meter with fuel gas alerter interface Download PDFInfo
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- CN203630871U CN203630871U CN201320877998.4U CN201320877998U CN203630871U CN 203630871 U CN203630871 U CN 203630871U CN 201320877998 U CN201320877998 U CN 201320877998U CN 203630871 U CN203630871 U CN 203630871U
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- card
- circuit
- connects
- gas meter
- fuel gas
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- 239000007789 gas Substances 0.000 title claims abstract description 65
- 239000002737 fuel gas Substances 0.000 title claims abstract description 38
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 4
- 230000006870 function Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Disclosed is an IC (integrated circuit) card intelligence gas meter with a fuel gas alerter interface. The IC card intelligence gas meter with the fuel gas alerter interface solves the problem that no fuel gas alerter interface is arranged on a large amount of existing IC card intelligence gas meters, and an electronic control valve in linkage with an alerter is additionally arranged in a gas pipeline for achieving a valve shutdown function when the alerter sends an alarm. The IC card intelligence gas meter with the fuel gas alerter interface is composed of an IC card intelligence gas meter base meter (1), wherein a main control circuit board (2) is installed in the IC card intelligence gas meter base meter, and the card intelligence gas meter base meter is connected with an electric valve (3), a flow signal collection device (4), a battery compartment (5) and an IC card signal collection device (6). The IC card intelligence gas meter with the fuel gas alerter interface is used on an intelligence gas meter.
Description
Technical field
the utility model relates to a kind of IC-card intelligent gas meter with fuel gas alarm interface.
Background technology
existing IC-card intelligent gas meter major part is without fuel gas alarm input interface, closing valve function when realizing alarm equipment alarm and being additionally in gas pipeline increases an electric control valve and alarm interlock, the result of doing is like this to have increased cost, and increased pipe joint, easily cause joint to occur revealing; The interface adopting with the IC-card intelligent gas meter of alarm interface in the market can only receive a kind of alerting signal, and the output form of the present fuel gas alarm with output function has two kinds of level output, switching value outputs, its use has certain limitation.
Summary of the invention
the purpose of this utility model is to provide one can realize safe use gas, reduces to greatest extent people life property loss's the IC-card intelligent gas meter with fuel gas alarm interface.
above-mentioned object realizes by following technical scheme:
a kind of IC-card intelligent gas meter with fuel gas alarm interface, its composition comprises: IC-card intelligent gas meter base table, in described IC-card intelligent gas meter base table, main control board is housed, described IC-card intelligent gas meter base table connects electrically operated valve, flow rate signal pick device, battery compartment, IC-card signal pickup assembly.
the described IC-card intelligent gas meter with fuel gas alarm interface, described main control board comprises microprocessor, and described microprocessor connects LCD display circuit, buzzer alarm circuit, valve treatment circuit, dual-supply voltage testing circuit, electric power management circuit, flow detection circuit, fuel gas alarm input interface circuit, IC-card control circuit, memory processes circuit.
the described IC-card intelligent gas meter with fuel gas alarm interface, described IC-card intelligent gas meter base table connects control panel, the bottom of described control panel connects IC-card seat, described IC-card seat connects IC-card circuit board, and the middle part of described control panel connects described main control board, valve wire harness plug receptacle, switching value plug receptacle, battery wire harness plug receptacle, pulsed quantity plug receptacle, sensor wire harness plug receptacle; Described sensor wire harness plug receptacle connecting sensor, described sensor linkage counter.
the described IC-card intelligent gas meter with fuel gas alarm interface, described flow rate signal pick device is in-built described flow detection circuit, described flow detection circuit comprises power supply DVCC and connector CN1, described power supply DVCC contact resistance R24 and resistance R 23, described resistance R 23 series capacitance C21, described resistance R 24 series capacitance C20, described connector CN1 contact resistance R31 and resistance R 32, described resistance R 31 connects the pin P1.3 of described microprocessor, and described resistance R 32 connects the pin P1.4 of described microprocessor.
the described IC-card intelligent gas meter with fuel gas alarm interface, in described IC-card signal pickup assembly, IC-card circuit board is housed, described IC-card circuit board comprises power supply DVCC, described power supply DVCC connecting triode Q2, described triode Q2 contact resistance R16 and R19, described R16 connects the pin P6.3 of described microprocessor, described R19 connects capacitor C 18 and capacitor C 16, described capacitor C 16 described capacitor C 18 in parallel, described R19 connects CARD, described CARD contact resistance R17 and capacitor C 17, described CARD contact resistance R18, described resistance R 17 connects power supply DVCC.
beneficial effect:
1. the utility model can receive the output signal of fuel gas alarm, and valve-off in the time that IC-card intelligent gas meter receives alerting signal is driven valve by plug-in card in the time that alerting signal is removed, and guarantees security.
the utility model has adopted two kinds of remote alarm interface circuit, can receive switching value signal and the level signal of fuel gas alarm output.
the utility model has prevented that the not enough valve that closes of system power supply from causing the inconvenience in use to user, has designed dual-supply voltage testing circuit, detects respectively two different voltages.In the time first voltage being detected, main control board is by sound alerting signal pointing out on liquid crystal display of hummer, and now user can continue use gas, and in the time second voltage being detected, just valve-off, guarantees the time of changing in time battery to user.
the utility model has been realized the combination of fuel gas alarm and IC-card intelligent gas meter, can, gas leakage or combustion gas does not have valve-off in clean-burning situation occurs, realize safe use gas.
valve interlock in the utility model fuel gas alarm and IC-card intelligent gas meter, has cancelled outside valve, has reduced joint quantity, to avoiding gas leakage to have certain guarantee.
the utility model uses IC-card can realize pre paid functionality, reduces the occupation of capital amount of gas company, avoids user's malicious owing fee, improves the management level of gas company.
accompanying drawing explanation:
accompanying drawing 1 is illustrative view of functional configuration of the present utility model.
accompanying drawing 2 is the block diagram of main control board in accompanying drawing 1.
accompanying drawing 3 is dual-supply voltage testing circuit figure in accompanying drawing 2.
accompanying drawing 4 is fuel gas alarm input interface circuit figure in accompanying drawing 2.
accompanying drawing 5 is flow detection circuit diagram in accompanying drawing 2.
accompanying drawing 6 is IC-card control circuit figure in accompanying drawing 2.
accompanying drawing 7 is memory circuitry figure in accompanying drawing 2.
accompanying drawing 8 is electrically operated valve control circuit figure in accompanying drawing 2.
embodiment:
embodiment 1:
a kind of IC-card intelligent gas meter with fuel gas alarm interface, its composition comprises: IC-card intelligent gas meter base table 1, in described IC-card intelligent gas meter base table, main control board 2 is housed, described IC-card intelligent gas meter base table connects electrically operated valve 3, flow rate signal pick device 4, battery compartment 5, IC-card signal pickup assembly 6.
dual-supply voltage testing circuit as shown in Figure 3, that dual-supply voltage detects respectively is 3.5V and 3.7V, that adopt is S80835 and the S80837 of Seiko, the input end of two voltage checking chip all comes from that battery provides via a diode, their output terminal is connected respectively to microprocessor P1.5 and P1.6 port, in the time 3.7V voltage being detected, main control board is by sound alerting signal pointing out on liquid crystal display of hummer, now user can continue use gas, in the time 3.5V voltage being detected, just valve-off, guarantee to change in time to user the time of battery.
fuel gas alarm input interface circuit as shown in Figure 4, this circuit is divided into two kinds, a kind of be can receiving key amount alerting signal circuit, in circuit, diode D8 shields, and can prevent because the alarm output of pulse signal that error causes is connected to the main control board that burns causing on switching value interface; Another kind be can received pulse alerting signal interface circuit, circuit has adopted light-coupled isolation design, can prevent the interference of pulse signal to main control board.
flow detection circuit theory diagrams as shown in Figure 5, this flow detection circuit comprises antimagnetic and counting two parts circuit, in the time that there is strong magnetic interference in the external world, main control board by hummer sound alerting signal and control electrically operated valve close and point out on liquid crystal display; Counting circuit can also play inflow-rate of water turbine and close the function of valve except having the function of normal counting, when twice gate time interval is less than the gas time used of walking 0.1m3 when this table is worked with maximum flow, represent super flow, now main circuit board control electrically operated valve is closed, and prevents from occurring because the improper factor in the external world causes the situation of counting of abnormal.。
card control circuit as shown in Figure 6, this circuit is to control IC-card read-write, in the time that normal insertion IC-card card carries out data storage and reads, first this circuit is card power supply, in the time of EO, can signal to microcontroller by I/O mouth, control hummer and send prompt tone, and stop as card power supply.
as shown in Figure 7, the storer that the design selects is the CAT24C02 chip of ON Semiconductor company to memory processes circuit, and memory capacity is 2K, and it can store all information about table.
as shown in Figure 8, this electrically operated valve adopts classical H bridge control to valve treatment circuit.When P6.7 mouth is high level, when P6.6 port is low level, triode Q4, Q6, Q8 conducting, Q5, Q7, Q9 cut-off, so b level for height a level be low, motor rotates counterclockwise, valve leaves; When P6.7 port is low level and P6.6 port while being high level, triode Q5, Q7, Q9 conducting, Q4, Q6, Q8 cut-off, therefore motor clockwise rotates, and valve closes.By the control circuit of motor valve, can single-chip computer control system can be controlled user easily use gas, effectively realizes pre paid functionality.
electrically operated valve is arranged on gas meter, flow meter inside, and it is the critical component of realizing gas meter, flow meter pre paid functionality and cutting off in time source of the gas.In the time that this IC-card intelligent gas meter with fuel gas alarm input interface receives the alerting signal that fuel gas alarm transmits, close rapidly table valve-embedded, cut off in time the function of source of the gas.Guarantee user's security of the lives and property, reduce dangerous.
after external alarm signal is removed, user can realize out valve, continuation gas by inserting subscriber card.Embodiment 2:
the IC-card intelligent gas meter with fuel gas alarm interface described in embodiment 1, described main control board comprises microprocessor 7, and described microprocessor connects LCD display circuit 8, buzzer alarm circuit 9, valve treatment circuit 10, dual-supply voltage testing circuit 11, electric power management circuit 12, flow detection circuit 13, fuel gas alarm input interface circuit 14, IC-card control circuit 15, memory processes circuit 16.
that dual-supply voltage testing circuit detects respectively is 3.5V and 3.7V, that adopt is S80835 and the S80837 of Seiko, the input end of two voltage checking chip all comes from that battery provides via a diode, their output terminal is connected respectively to microprocessor P1.5 and P1.6 port, in the time 3.7V voltage being detected, main control board is by sound alerting signal pointing out on liquid crystal display of external buzzer, now user can continue use gas, in the time 3.5V voltage being detected, just valve-off, the time of battery is changed in assurance in time to user.
fuel gas alarm input interface circuit is divided into two kinds, a kind of be can receiving key amount alerting signal circuit, in circuit, diode D8 shields, and can prevent because the alarm output of pulse signal that error causes is connected to the main control board that burns causing on switching value interface; Another kind be can received pulse alerting signal interface circuit, circuit has adopted light-coupled isolation design, can prevent the interference of pulse signal to main control board.
valve treatment circuit adopts classical H bridge control.When P6.7 port is high level, when P6.6 port is low level, triode Q4, Q6, Q8 conducting, Q5, Q7, Q9 cut-off, so b end level is low for height a holds level, motor rotates counterclockwise, valve leaves; When P6.7 port is low level and P6.6 port while being high level, triode Q5, Q7, Q9 conducting, Q4, Q6, Q8 cut-off, therefore motor clockwise rotates, and valve closes.By the control circuit of motor valve, can single-chip computer control system can be controlled user easily use gas, effectively realizes pre paid functionality.
embodiment 3:
the IC-card intelligent gas meter with fuel gas alarm interface described in embodiment 1, described IC-card intelligent gas meter base table connects control panel 17, the bottom of described control panel connects IC-card seat 18, described IC-card seat connects IC-card circuit board 19, and the middle part of described control panel connects described main control board, valve wire harness plug receptacle 21, switching value plug receptacle 22, battery wire harness plug receptacle 23, pulsed quantity plug receptacle 24, sensor wire harness plug receptacle 25; Described sensor wire harness plug receptacle connecting sensor 26, described sensor linkage counter 20.
embodiment 4:
the IC-card intelligent gas meter with fuel gas alarm interface described in embodiment 1 or 2, described flow rate signal pick device is in-built described flow detection circuit, described flow detection circuit comprises power supply DVCC and connector CN1, described power supply DVCC contact resistance R24 and resistance R 23, described resistance R 23 series capacitance C21, described resistance R 24 series capacitance C20, described connector CN1 contact resistance R31 and resistance R 32, described resistance R 31 connects the pin P1.3 of described microprocessor, described resistance R 32 connects the pin P1.4 of described microprocessor.
embodiment 5:
the IC-card intelligent gas meter with fuel gas alarm interface described in embodiment 1 or 2, in described IC-card signal pickup assembly, IC-card circuit board is housed, described IC-card circuit board comprises power supply DVCC, described power supply DVCC connecting triode Q2, described triode Q2 contact resistance R16 and R19, described R16 connects the pin P6.3 of described microprocessor, described R19 connects capacitor C 18 and capacitor C 16, described capacitor C 16 described capacitor C 18 in parallel, described R19 connects CARD, described CARD contact resistance R17 and capacitor C 17, described CARD contact resistance R18, described resistance R 17 connects power supply DVCC.
Claims (5)
1. the IC-card intelligent gas meter with fuel gas alarm interface, its composition comprises: IC-card intelligent gas meter base table, it is characterized in that: in described IC-card intelligent gas meter base table, main control board is housed, described IC-card intelligent gas meter base table connects electrically operated valve, flow rate signal pick device, battery compartment, IC-card signal pickup assembly.
2. the IC-card intelligent gas meter with fuel gas alarm interface according to claim 1, it is characterized in that: described main control board comprises microprocessor, described microprocessor connects LCD display circuit, buzzer alarm circuit, valve treatment circuit, dual-supply voltage testing circuit, electric power management circuit, flow detection circuit, fuel gas alarm input interface circuit, IC-card control circuit, memory processes circuit.
3. the IC-card intelligent gas meter with fuel gas alarm interface according to claim 1, it is characterized in that: described IC-card intelligent gas meter base table connects control panel, the bottom of described control panel connects IC-card seat, described IC-card seat connects IC-card circuit board, and the middle part of described control panel connects described main control board, valve wire harness plug receptacle, switching value plug receptacle, battery wire harness plug receptacle, pulsed quantity plug receptacle, sensor wire harness plug receptacle; Described sensor wire harness plug receptacle connecting sensor, described sensor linkage counter.
4. the IC-card intelligent gas meter with fuel gas alarm interface according to claim 1 and 2, it is characterized in that: described flow rate signal pick device is in-built described flow detection circuit, described flow detection circuit comprises power supply DVCC and connector CN1, described power supply DVCC contact resistance R24 and resistance R 23, described resistance R 23 series capacitance C21, described resistance R 24 series capacitance C20, described connector CN1 contact resistance R31 and resistance R 32, described resistance R 31 connects the pin P1.3 of described microprocessor, described resistance R 32 connects the pin P1.4 of described microprocessor.
5. the IC-card intelligent gas meter with fuel gas alarm interface according to claim 1 and 2, it is characterized in that: in described IC-card signal pickup assembly, IC-card circuit board is housed, described IC-card circuit board comprises power supply DVCC, described power supply DVCC connecting triode Q2, described triode Q2 contact resistance R16 and R19, described R16 connects the pin P6.3 of described microprocessor, described R19 connects capacitor C 18 and capacitor C 16, described capacitor C 16 described capacitor C 18 in parallel, described R19 connects CARD, described CARD contact resistance R17 and capacitor C 17, described CARD contact resistance R18, described resistance R 17 connects power supply DVCC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877998.4U CN203630871U (en) | 2013-12-30 | 2013-12-30 | IC (integrated circuit) card intelligence gas meter with fuel gas alerter interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320877998.4U CN203630871U (en) | 2013-12-30 | 2013-12-30 | IC (integrated circuit) card intelligence gas meter with fuel gas alerter interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203630871U true CN203630871U (en) | 2014-06-04 |
Family
ID=50817328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320877998.4U Expired - Fee Related CN203630871U (en) | 2013-12-30 | 2013-12-30 | IC (integrated circuit) card intelligence gas meter with fuel gas alerter interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203630871U (en) |
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2013
- 2013-12-30 CN CN201320877998.4U patent/CN203630871U/en not_active Expired - Fee Related
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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: 20140604 |