CN2290892Y - Automatic monitoring and controlling device of intelligent IC card gasometer - Google Patents
Automatic monitoring and controlling device of intelligent IC card gasometer Download PDFInfo
- Publication number
- CN2290892Y CN2290892Y CN 97236092 CN97236092U CN2290892Y CN 2290892 Y CN2290892 Y CN 2290892Y CN 97236092 CN97236092 CN 97236092 CN 97236092 U CN97236092 U CN 97236092U CN 2290892 Y CN2290892 Y CN 2290892Y
- Authority
- CN
- China
- Prior art keywords
- link
- chip microcomputer
- circuit
- resistance
- triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model adopts an IC card as a carrier for buying gas for a user and monitoring information of a gasometer, and can realize the precise changes of the measuring signal of gasometers by an infrared pulse optical sensing circuit. The utility model is mainly composed of a pulse source circuit, a signal receiving circuit, a power supply control circuit for a single chip computer, a single chip computer, a drive circuit for an electrical control valve, a storage circuit, etc. The utility model has the functions of automatic metering and charging, surplus judgement, gas consumption control, self-diagnosis, alarm, etc. The utility model which can be matched with all gasometers has the advantages of simple structure, high safety, low cost and less electric power consumption.
Description
The utility model relates to that the gas meter automatic gauge charges and with gas control system device.
Look into the situation of gas meter charge in order to change manually to register one's residence, existing many new gas meters come out.But the existing device that can copy and accept gas using quantity automatically, in gas measurement signal transformation mode, power supply mode, antijamming capability, all there are many defectives in aspects such as the ratio of performance to price.
The purpose of this utility model provides the automatic accurate metering and billing of a kind of energy, judges surplus automatically, prompting is reported to the police, automatically send air feed, the control signal of dying, autodiagnosis, and can with the IC-card gas meter automatic measurement and control device of the supporting use dry cell of all gas meters.
Below in conjunction with accompanying drawing, the utility model is elaborated.
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is the structural drawing of gas meter signal transmitting device (15);
Fig. 3 is a pulse source circuit, the signal receiving circuit schematic diagram;
Fig. 4 is microcontroller power supply control circuit figure;
Fig. 5 is the single main circuit schematic diagram;
Fig. 6 is the electrically-controlled valve driving circuit figure that adopts the motor valve.
Structure of the present utility model is seen accompanying drawing 1: in the control of single-chip microcomputer (5) as whole Circuits System The heart, gas meter air inlet (1) connects electrically-controlled valve (2), connects electrically-controlled valve drive circuit (3) again, is connected to again Single-chip microcomputer (5); Gas measurement signal transmitting device (15) connects pulse source circuit (4), is connected to signal again and connects Receive circuit (11), be connected to again single-chip microcomputer (5); IC-card (14) inserts IC-card plug-in card testing circuit (13), Connect again IC-card read-write control circuit (12), insert again single-chip microcomputer (5); Data-storing circuit (6) inserts Single-chip microcomputer (5); The acousto-optic circuit (7) of warning inserts single-chip microcomputer (5); Battery voltage detection circuit (8) one Termination enters single-chip microcomputer (5), and the other end connects single-chip microcomputer power-supplying circuit (10); Power protection detects Circuit (9) one terminations enter single-chip microcomputer (5); The other end connects single-chip microcomputer power-supplying circuit (10); IC-card Plug-in card testing circuit (13), signal receiving circuit (11) all connect with single-chip microcomputer power-supplying circuit (10) Connect.
Accompanying drawing 3 is pulse source circuit of the present utility model and signal receiving circuit.
It is 15～30ms that pulse source circuit (4) is used for the generation cycle, and pulse duration ratio is bordering on 1000 continuous narrow pulse signal, and drives infraluminescence pipe (17) and send infrared light, and its circuit is: resistance (R
1) and diode (D
1) parallel connection, a termination d type flip flop (IC
1) Q end, the other end and electric capacity (C
1) link to each other, be attempted by the R end; Resistance (R
2) and diode (D
2) parallel connection, a termination (IC
1) Q end, the other end and electric capacity (C
2) link to each other, and be connected on the S end D end and electric capacity (C
1), (C
2) the equal ground connection of the other end.D type flip flop (IC
1) Q end and phase inverter (IC
2～4) link to each other (IC
2～4) output terminal and triode (T
1) base resistance (R
3) link to each other triode (T
1) collector resistance (R
4) link to each other by the negative pole of the infraluminescence pipe (17) in a lead and the gas measurement signal transmitting device (15).
Metering signal receiving circuit (11) is used to receive the pulsed light that infraluminescence pipe (17) sends, and sends single-chip microcomputer (5) to and carry out the step-by-step counting processing after shaping, and its circuit is: stake resistance (R
5) the other end by lead link to each other with infrared receiving tube (19) in the gas measurement signal transmitting device (15) while and coupling capacitance (C
3) link to each other electric capacity (C
3) the other end directly and triode (T
2) base stage link to each other pull down resistor (R
6) the connection base stage, triode (T
2) collector resistance be (R
7), triode (T
2) collector while and phase inverter (IC
2～5) link to each other phase inverter (IC
2～5) output terminal and with door (IC
3～2) input end link to each other; With door (IC
3～2) another input end and the phase inverter (IC in the pulse source circuit (4)
2～4) output terminal link to each other.
Accompanying drawing 2 is structural drawing of gas measurement signal transmitting device (15), and gas measurement signal transmitting device (15) is installed in the gas meter mechanical character wheel formula counter (22), is used for the metering signal of gas meter mechanical rotation is transformed into the infrared light pulse signal.Its structure is: have the signal transformation gear (18) and an interior measurement gear engagement of mechanical character wheel formula counter (22) of printing opacity mouth, signal transformation wheel (18) is fixed on axle (16) and goes up also and can rotate thereupon; Infraluminescence pipe (17) and receiving tube (19) are installed in the both sides of conversion wheel (18), and horizontal direction is relative, and all is fixed on the signal transmitting circuit board (21), and signal transmitting circuit board (21) is fixed on the counter (22).Signal transmitting circuit board (21) has four to draw lead: the power lead that a sending and receiving light pipe (17) is anodal, and a sending and receiving light pipe (17) negative signal line, other two are connected on receiving tube (19) two ends respectively.During work, under the drive of the measurement wheel that conversion wheel (18) is being engaged with, revolution moves a week, and the printing opacity mouth above the conversion wheel (18) is middle once through infraluminescence pipe (17) and receiving tube (19).
In order fully to reduce power consumption, the utility model has designed microcontroller power supply control circuit (10), can be when needs single-chip microcomputer (5) is worked by this circuit (10), the demand working power supply, when not needing power supply, single-chip microcomputer (5) sends control signal, cuts off the electricity supply.
Single chip machine controlling circuit (10), IC-card plug-in card testing circuit (13), power protection testing circuit (9), and the circuit of battery voltage detection circuit (8) is seen accompanying drawing 4.
The signal input part of microcontroller power supply control circuit (10) is divided into a four-input terminal and door (IC
3～1), should with gate output terminal and with door (IC
4) an input end link to each other, with door (IC
4) output terminal and triode (T
3) base resistance (R
11) link to each other, with door (IC
4) another input end and phase inverter (IC
2～3) output terminal link to each other phase inverter (IC
2～3) input end and single-chip microcomputer (IC
5) P
3.4Mouth links to each other, resistance (R
12) for connecting P
3.4The pull down resistor of mouth, triode (T
3) emitter and power supply (V
CC) link to each other triode (T
3) collector and single-chip microcomputer (IC
5) power end (V
DD) link to each other.
IC-card plug-in card testing circuit (13) is by resistance (R
8), (R
9) and closed type switch (K
1) form.Resistance (R
8) end connection power supply (V
CC), the other end connects switch (K
1), switch (K
1) the other end and stake resistance (R
9) link to each other, connect simultaneously and door (IC
3～1) an input end, when not having card and insert, because of switch (K
1) closure, resistance (R
9(the R of)＞＞
8So) with door (IC
3～1) continuous input end be high level, when card inserts, switch (K
1) disconnect, with door (IC
3～1) continuous input end resistance grounded, this moment be low level, can connect single-chip microcomputer (IC
5) power supply.
Power protection testing circuit (9) is by resistance (R
10) and switch (K
2) form resistance (R
10) a termination power (V
CC), another termination switch (K
2), simultaneously and with door (IC
3～1) an input end link to each other switch (K
2) other end ground connection, when battery is in place, switch (K
2) separate, make and door (IC
3～1) input end be high level; When battery does not put in place, switch (K
2) closure, make and door (IC
3～1) continuous input end be low level, thereby connect single-chip microcomputer (IC
5) power supply.
Battery voltage detection circuit (8) is mainly by little power consumption three port voltage comparer (IC
7) and diode (D
5) constitute comparer (IC
7) power end through buck diode (D
5) and power supply (V
CC) link to each other comparer (IC
7) output terminal directly and with door (IC
3～1) an input end link to each other, simultaneously, comparer (IC
7) output terminal and phase inverter (IC
2～1) input end link to each other phase inverter (IC
2～1) output terminal through resistance (R
13) and single-chip microcomputer (IC
5) P
1.3Mouth links to each other, electric capacity (C
4) for connecting single-chip microcomputer P
1.3Mouth and resistance (R
13) integrating capacitor, as power supply (V
CC) when voltage is lower than the protection value, comparer (IC
7) output low level, therefore with door (IC
3～1) input end that is attached thereto is low level, connects single-chip microcomputer (IC
5) power supply, comparer (IC
7) output signal also through phase inverter (IC
2～1) and resistance (R
13), electric capacity (C
4) integrating circuit formed sends single-chip microcomputer (IC to
5) P
1.3Mouth is used for the signal judgment processing.
Four inputs and door (IC
3～1) the 4th input end link to each other with the output terminal of metering signal receiving circuit (11), when with door (IC
3～1) when the input end that is attached thereto is low level, single-chip microcomputer (IC
5) be switched on power work.
IC-card read-write control circuit of the present utility model (12) is seen accompanying drawing 5, mainly by the IC-card socket, on draw with current-limiting resistance and form: the power end of IC-card socket is by resistance (R
38) and single-chip microcomputer (IC
5) power end (V
CC) link to each other, the clock cable of IC-card seat is by current-limiting resistance (R
23) and single-chip microcomputer (IC
5) P
3.6Mouth links to each other; The data signal line of IC-card seat is by current-limiting resistance (R
24) and single-chip microcomputer (IC
5) P
3.7Mouth links to each other, single-chip microcomputer (IC
5) P
3.6Mouth is connected with pull-up resistor (R
21), single-chip microcomputer (IC
5) P
3.7Mouth connects pull-up resistor (R
22).
Internal data storage circuit (6) is mainly by an EEPROM storaging chip (IC
6) and related resistors form, be used for that long-term storage is purchased tolerance and with data messages such as gas situation, storaging chip (IC
6) clock cable by current-limiting resistance (R
17) and single-chip microcomputer (IC
5) P
3.0Mouth links to each other, chip (IC
6) data signal line by current-limiting resistance (R
13) and single-chip microcomputer (IC
5) P
3.1Mouth links to each other, single-chip microcomputer (IC
5) P
3.0Mouth is connected with pull-up resistor (R
19); P
3.1Mouth is connected with pull-up resistor (R
20).
The acousto-optic circuit (7) of warning is by light-emitting diode display (24) resistance in series (R
25) and single-chip microcomputer (IC
5) P
2.5Mouth links to each other, as single-chip microcomputer (IC
5) when mouth was low level, light-emitting diode display (24) was luminous; Hummer (23) is by resistance in series (R
20) and single-chip microcomputer (IC
5) P
2.4Mouth links to each other, and works as P
2.4When mouth is low level, hummer (23) sounding.
Electrically-controlled valve driving circuit of the present utility model (3) has two kinds of forms: when adopting solenoid valve, and single-chip microcomputer (IC
5) P
2.6, P
2.7Two mouth line traffic controls are driven valve and are closed valve.Single-chip microcomputer (IC
5) P
2.5Mouth and triode (T
5) base resistance (R
28) link to each other resistance (R
29) for connecting the pull down resistor of base stage; Triode (T
5) collector and solenoid valve open valve drive coil (L
1) link to each other; Diode (D
3) and coil (L
1) parallel connection, as single-chip microcomputer (IC
5) P
2.6When mouth is high level, triode (T
5) saturation conduction, make coil (L
1) produce pulling force, open the electrically-controlled valve air feed, single-chip microcomputer (IC
5) P
2.7Mouth and triode (T
6) base resistance (R
30) link to each other resistance (R
31) for connecting the pull down resistor of base stage, triode (T
6) collector and the pass valve drive coil (L of solenoid valve
2) link to each other diode (D
4) and coil (L
2) parallel connection, as single-chip microcomputer (IC
5) P
2.7When mouth is high level, triode (T
6) saturation conduction, make coil (L
2) produce thrust, close electrically-controlled valve gas.
When adopting the motor valve, circuit as shown in Figure 6, single-chip microcomputer (IC
5) P
2.6Mouth and phase inverter (IC
2～2) input end links to each other, and be connected to pull down resistor (R
36), phase inverter (IC
2～2) output terminal and triode (T
7) base resistance (R
32) link to each other single-chip microcomputer (IC
5) P
2.7Mouth and phase inverter (IC
2～6) input end links to each other, and be connected to pull down resistor (R
37), phase inverter (IC
2～6) output terminal and triode (T
8) base resistance (R
33) link to each other triode (T
7) and (T
8) emitter all with battery supply (V
EE) link to each other triode (T
7) and (T
8) collector respectively with (T
9) and (T
10) collector link to each other (T
9) and (T
10) the equal ground connection of emitter, (T
9) base stage is by resistance (R
35) and (T
8) collector links to each other (T
10) base stage is by resistance (R
34) and triode (T
7) collector link to each other, two leads of motor valve respectively with triode (T
7) collector and (T
8) collector link to each other, as single-chip microcomputer (IC
5) P
2.6Mouth is a low level, P
2.7When mouth is high level, triode (T
8) and (T
9) conducting, (T
7) and (T
10) end, electric current is from (D
2) flow direction (D
1), electrically-controlled valve is turn-offed source of the gas.As single-chip microcomputer (IC
5) P
2.6Mouth is a high level, P
2.7When mouth is low level, triode (T
7) and (T
10) conducting, (T
a) and (T
9) end, electric current is from (D
1) flow direction (D
2), electrically-controlled valve is opened air feed.
During use, the user at first holds IC-card (14) is bought requirement to Gas Company coal gas, the operating personnel of Gas Company with computing machine sell the gas terminal with the user card number and this purchase information such as tolerance and write in the IC-card (14) with the password form, the user holds and returns to quarters, IC-card (14) is inserted in the IC-card seat, IC-card plug-in card testing circuit (13) is the output low level signal, control single chip computer (IC
5) power-supplying circuit (10).Connect the power supply of single-chip microcomputer (5), so single-chip microcomputer (5) promptly carries out read-write operation by IC-card read-write control circuit (12) to IC-card (14), storage in the card purchase data decryption such as tolerance after deposit in the data memory, when the user uses gas, every some of using, signal receiving circuit (11) just can receive the metering signal that gas measurement signal transmitting device (15) transmits, this signal makes control circuit (10) connect single-chip microcomputer main circuit powers such as (5) on the one hand, be sent to single-chip microcomputer (5) counting end on the other hand, single-chip microcomputer (5) but just can from present total gas consumption, deduct the tolerance of usefulness, and carry out surplus and judge.When finding that surplus is lower than the prompting value, single-chip microcomputer (5) can go to Gas Company to purchase gas to point out the user to hold by control sound device sounding again.When residue tolerance was zero, single-chip microcomputer (5) can turn-off the air feed path by electrically-controlled valve driving circuit (3) control, and up to there being the IC-card (14) of newly purchasing gas to insert the card socket, and after will newly purchasing tolerance and depositing data memory in, air supply channel just can be opened.In addition; be drawn out when detecting battery case by power protection testing circuit (9); or detect cell voltage by battery voltage detection circuit (8) and cross when low; single-chip microcomputer (5) power supply can be connected rapidly by power-supplying circuit (10); and send the pass valve signal by single-chip microcomputer (5); after single-chip microcomputer (5) disposes, can send control signal, cut off self power supply, to realize lowest power consumption by power-supplying circuit (10).
The utility model has the advantages that:
1. adopt and meet the carrier of the IC-card of ISO7816 international standard as gas measurement and control information; has metering and billing; automatic air feed; die; automatically prompting is reported to the police, the automatic vaporous condition of recording user, autodiagnosis circuit working situation; battery voltage detection, power protection and intelligent functions such as anti-fake encrpted.
2. Guan Jian gas measurement conversion of signals mode is accurately and reliably: owing to adopted the mode of infrared pulse light to carry out conversion to the gas measurement signal, it is simple in structure to make that this conversion has, can anti-electromagnetism, and interference such as veiling glare, conversion is contactless, essential safety.
3. low-power consumption, the utility model can be connected primary powers such as single-chip microcomputer automatically, also can the oneself cut off the electricity supply so that power consumption is reduced to minimum.Only need the general dry battery power supply to get final product long-term work, not only economy but also safety.
4. simple in structure, cost is low, can be supporting with the conventional gas meter that different manufacturers is produced.Production, installation and maintenance are all very convenient.
In a word, the utlity model has the good ratio of performance to price, be suitable for applying in enormous quantities.
Description of drawings:
1, gas meter air inlet; 2, electrically-controlled valve; 3, drive circuit; 4, pulse source circuit; 5, Single-chip microcomputer (IC5); 6, data-storing circuit; 7, the acousto-optic circuit of warning; 8, battery voltage detection electricity The road; 9, power protection testing circuit; 10, single-chip microcomputer power-supplying circuit; 11, metering signal Receiving circuit; 12, IC-card read-write control circuit; 13, IC-card plug-in card testing circuit; 14, IC-card; 15, gas measurement signal transmitting device; 16, conversion wheel fixed axis; 17, infraluminescence pipe; 18, Metering signal conversion wheel; 19, infrared receiving tube; 20, signal transmitting device holding wire; 21, metering The signal transmitting circuit board; 22, mechanical character wheel formula counter; 23, buzzer; 24, LED shows Device. D1～D
5, diode; R1～R
37, resistance; IC1, trigger; C1～C
8, electric capacity; T1
～T
10, triode; IC2～1～IC
2～6, phase inverter; IC7, comparator; IC3～1、IC
3～2、
IC
4, with the door; K1、K
2, switch; IC6, storaging chip; VCC, power supply; VEE, the battery electricity The source.
Claims (5)
1. intellective IC card gas meter automatic measurement and control device, it is characterized in that: gas meter air intake opening (1) connects electrically-controlled valve (2), connects electrically-controlled valve driving circuit (3) again, is connected to single-chip microcomputer (5) again; Gas measurement signal transmitting device (15) connects pulse source circuit (4), is connected to signal receiving circuit (11) again, is connected to single-chip microcomputer (5) again; IC-card (14) inserts IC-card plug-in card testing circuit (13), connects IC-card read-write control circuit (12) again, inserts single-chip microcomputer (5) again; Data-storing circuit (6) inserts single-chip microcomputer (5); The acousto-optic circuit (7) of warning inserts single-chip microcomputer (5); Battery voltage detection circuit (8) one terminations are gone into single-chip microcomputer (5), and the other end connects single-chip microcomputer power-supplying circuit (10); Power protection testing circuit (9) one terminations are gone into single-chip microcomputer (5); The other end connects single-chip microcomputer power-supplying circuit (10); IC-card plug-in card testing circuit (13), signal receiving circuit (11) all are connected with single-chip microcomputer power-supplying circuit (10).
2. gas meter automatic measurement and control device as claimed in claim 1 is characterized in that, described pulse power supply circuit (4) and signal receiving circuit (11) are:
A: resistance (R
1) and diode (D
1) parallel connection, a termination d type flip flop (IC
1) Q end, the other end and electric capacity (C
1) link to each other, be attempted by the R end; Resistance (R
2) and diode (D
2) parallel connection, a termination (IC
1) Q end, the other end and electric capacity (C
2) link to each other, and be connected on the S end D end and electric capacity (C
1), (C
2) the equal ground connection of the other end; D type flip flop (IC
1) Q end and phase inverter (IC
2～4) link to each other (IC
2～4) output terminal and triode (T
1) base resistance (R
3) link to each other triode (T
1) collector resistance (R
4) the negative pole of infraluminescence pipe (17) in lead and gas measurement signal transmitting device (15) links to each other;
B: metering signal receiving circuit: stake resistance (R
5) the other end link to each other with infrared receiving tube (19) in the gas measurement signal transmitting device (15) simultaneously and coupling capacitance (C through lead
3) link to each other electric capacity (C
3) the other end directly and triode (T
2) base stage link to each other pull down resistor (R
6) the connection base stage, triode (T
2) collector resistance be (R
7), triode (T
2) collector while and phase inverter (IC
2～5) link to each other phase inverter (IC
2～5) output terminal and with door (IC
3～2) input end link to each other; With door (IC
3～2) another input end and the phase inverter (IC in the pulse source circuit (4)
2～4) output terminal link to each other.
3. gas meter automatic measurement and control device as claimed in claim 1, it is characterized in that: described gas measurement signal transmitting device (15) is, have the signal transformation gear (18) and an interior measurement gear engagement of mechanical character wheel formula counter (22) of printing opacity mouth, signal transformation wheel (18) is fixed on axle (16) and goes up also and can rotate thereupon; Infraluminescence pipe (17) and receiving tube (19) are installed in the both sides of conversion wheel (18), and horizontal direction is relative, and all is fixed on the signal transmitting circuit board (21), and signal transmitting circuit board (21) is fixed on the counter (22); Signal transmitting circuit board (21) has four to draw lead: the power lead that a sending and receiving light pipe (17) is anodal, the signal wire of a sending and receiving light pipe (17) negative pole, other two two ends that are connected to receiving tube (19).
4. gas meter automatic measurement and control device as claimed in claim 1 is characterized in that, described single-chip microcomputer power-supplying circuit (10), IC-card plug-in card testing circuit (13), power protection testing circuit (9) and battery voltage detection circuit (8) are:
A: the signal input part of microcontroller power supply control circuit (10) is divided into a four-input terminal and door (IC
3～1), should with gate output terminal and with door (IC
4) an input end link to each other, with door (IC
4) output terminal and triode (T
3) base resistance (R
11) link to each other, with door (IC
4) another input end and phase inverter (IC
2～3) output terminal link to each other phase inverter (IC
2～3) input end and single-chip microcomputer (IC
5) P
3.4Mouth links to each other, resistance (R
12) for connecting P
3.4The pull down resistor of mouth, triode (T
3) emitter and power supply (V
CC) link to each other triode (T
3) collector and single-chip microcomputer (IC
5) power end (V
DD) link to each other;
B:IC card plug-in card testing circuit (13) is by resistance (R
8) end connection power supply (V
CC), the other end connects switch (K
1), switch (K
1) the other end and stake resistance (R
9) link to each other and connect and (an IC
3～1) an input end;
C: power protection detects road (9) by resistance (R
10) and switch (K
2) form: resistance (R
10) a termination power (V
CC), another termination switch (K
2), and and with door (IC
3～1) an input end link to each other switch (K
2) other end ground connection;
D: battery voltage detection circuit (8) is by comparer (IC
7) power end through diode (D
5) and power supply (V
CC) link to each other comparer (IC
7) output terminal and with door (IC
3～1) an input end link to each other comparer (IC
7) output terminal and phase inverter (IC
2～1) input end link to each other phase inverter (IC
2～1) output terminal through resistance (R
13) and single-chip microcomputer (IC
5) P
1.3Mouth links to each other, electric capacity (C
4) for connecting single-chip microcomputer P
1.3Mouth and resistance (R
13) integrating capacitor.
5. gas meter automatic measurement and control device as claimed in claim 1 is characterized in that:
A: described IC-card read-write control circuit (12), by the power end of IC-card socket by resistance (R
38) and single-chip microcomputer (IC
5) power end (V
CC) link to each other, the clock cable of IC-card seat is by current-limiting resistance (R
23) and single-chip microcomputer (IC
5) P
3.6Mouth links to each other; The data signal line of IC-card seat is by current-limiting resistance (R
24) and single-chip microcomputer (IC
5) P
3.7Mouth links to each other, single-chip microcomputer (IC
5) P
3.6Mouth is connected with pull-up resistor (R
21), single-chip microcomputer (IC
5) P
3.7Mouth connects pull-up resistor (R
23);
B: internal data storage circuit (6) is mainly by an EEPROM storaging chip (IC
6) and the related resistors composition;
C: the acousto-optic circuit (7) of warning is by light-emitting diode display (24) resistance in series (R
25) and single-chip microcomputer (IC
5) P
2.5Mouth links to each other, as single-chip microcomputer (IC
5) when mouth was low level, light-emitting diode display (24) was luminous; Hummer (23) is by resistance in series (R
26) and single-chip microcomputer (IC
5) P
2.4Mouth links to each other;
D: when electrically-controlled valve driving circuit (3) adopts solenoid valve: single-chip microcomputer (IC
5) P
2.5Mouth and triode (T
5) base resistance (R
28) link to each other resistance (R
29) for connecting the pull down resistor of base stage, triode (T
5) collector and solenoid valve open valve drive coil (L
1) link to each other diode (D
3) and coil (L
1) parallel connection, as single-chip microcomputer (IC
5) P
2.6When mouth is high level, triode (T
5) saturation conduction, make coil (L
1) produce pulling force, open the electrically-controlled valve air feed, single-chip microcomputer (IC
5) P
2.7Mouth and triode (T
6) base resistance (R
30) link to each other resistance (R
31) for connecting the pull down resistor of base stage, triode (T
8) collector and the pass valve drive coil (L of solenoid valve
2) link to each other diode (D
4) and coil (L
2) parallel connection; When adopting the motor valve: single-chip microcomputer (IC
5) P
2.5Mouth and phase inverter (IC
2～2) input end links to each other, and be connected to pull down resistor (R
35), phase inverter (IC
2～2) output terminal and triode (T
7) base resistance (R
32) link to each other single-chip microcomputer (IC
5) P
2.7Mouth and phase inverter (IC
2～5) input end links to each other, and be connected to pull down resistor (R
37), phase inverter (IC
2～5) output terminal and triode (T
8) base resistance (R
33) link to each other triode (T
7) and (T
8) emitter all with battery supply (V
EE) link to each other triode (T
7) and (T
8) collector respectively with (T
9) and (T
10) collector link to each other (T
9) and (T
10) the equal ground connection of emitter, (T
9) base stage is by resistance (R
35) and (T
8) collector links to each other (T
10) base stage is by resistance (R
34) and triode (T
7) collector link to each other, two leads of motor valve respectively with triode (T
7) collector and (T
8) collector link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236092 CN2290892Y (en) | 1997-05-16 | 1997-05-16 | Automatic monitoring and controlling device of intelligent IC card gasometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236092 CN2290892Y (en) | 1997-05-16 | 1997-05-16 | Automatic monitoring and controlling device of intelligent IC card gasometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2290892Y true CN2290892Y (en) | 1998-09-09 |
Family
ID=33947049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236092 Expired - Fee Related CN2290892Y (en) | 1997-05-16 | 1997-05-16 | Automatic monitoring and controlling device of intelligent IC card gasometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2290892Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441789A (en) * | 2008-12-25 | 2009-05-27 | 欧福代码技术(大连)有限公司 | Fault automatic detection method of code type pre-payment instrument |
| CN103712742A (en) * | 2013-12-18 | 2014-04-09 | 安徽睿联汽车传感器工程技术有限公司 | Pressure detection circuit |
-
1997
- 1997-05-16 CN CN 97236092 patent/CN2290892Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441789A (en) * | 2008-12-25 | 2009-05-27 | 欧福代码技术(大连)有限公司 | Fault automatic detection method of code type pre-payment instrument |
| CN103712742A (en) * | 2013-12-18 | 2014-04-09 | 安徽睿联汽车传感器工程技术有限公司 | Pressure detection circuit |
| CN103712742B (en) * | 2013-12-18 | 2015-12-02 | 安徽睿联汽车传感器工程技术有限公司 | A kind of pressure detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201867895U (en) | Card insertion type intelligent electric energy meter for single-phase cost control | |
| CN208351613U (en) | A kind of charging heap Charging Detail Record unit based on RS485 communication | |
| CN107009901A (en) | A kind of SCM Based electric automobile combination electronic instrument | |
| CN2290892Y (en) | Automatic monitoring and controlling device of intelligent IC card gasometer | |
| CN210454521U (en) | Self-service payment system of matrix type flexible charging pile | |
| CN2286864Y (en) | Gas intelligent controllor | |
| CN2554606Y (en) | Intelligent water meter | |
| CN221326562U (en) | Motor rotating speed prompting circuit of tracking trolley | |
| CN2266125Y (en) | IC card prepayment gas meter | |
| CN2488052Y (en) | IC card intelligent watermeter | |
| CN2270248Y (en) | Micro-watt consumption precharging controller for gas meter and water meter and its pipe shutting-off | |
| CN2569100Y (en) | Precharging water meter, gas meter without working power source | |
| CN201016986Y (en) | Automobile over-speed governor | |
| CN2264899Y (en) | Gas meter with IC card | |
| CN219618917U (en) | Novel intelligent charging pile and ground lock matching device | |
| CN2369220Y (en) | Intellectual water meter | |
| CN2297753Y (en) | Heat supply intelligent card and collecting fees device | |
| CN2254179Y (en) | Automatic gas metering controller | |
| CN106023448A (en) | Prepayment watthour meter with intelligent reminding function | |
| CN2249926Y (en) | In advance charging device with automatic valves for coke-oven gas supplied through pipes | |
| CN2324548Y (en) | IC card pre-payment electric energy meter | |
| CN2699251Y (en) | Infrared IC card pre-payment stepwise water meter | |
| CN2296044Y (en) | IC card charging device for water supply | |
| CN201667093U (en) | Mechanical intelligent flow controller | |
| CN2349552Y (en) | Inter-connected intelligent gas meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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 |