CN2259650Y - Intelligent card gas meter - Google Patents
Intelligent card gas meter Download PDFInfo
- Publication number
- CN2259650Y CN2259650Y CN 95240746 CN95240746U CN2259650Y CN 2259650 Y CN2259650 Y CN 2259650Y CN 95240746 CN95240746 CN 95240746 CN 95240746 U CN95240746 U CN 95240746U CN 2259650 Y CN2259650 Y CN 2259650Y
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- CN
- China
- Prior art keywords
- pin
- valve
- integrated package
- circuit
- processing unit
- 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
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Abstract
The utility model relates to a meter belonging to the field of gas measurement, in particular to an intelligent card gas meter, which is mainly composed of a gas meter, an electromagnetic valve, a sensor, a CPU and an IC card. The utility model is characterized in that based on the prior gas meter, the sensor and the CPU are arranged to control work of the electromagnetic valve. After inserted in a socket, the sold IC card, as gas charging card, can trigger the start-up of the electromagnetic valve by the CPU. The utility model is the combination of advanced and new technology and civil product.
Description
The utility model relates to a kind of instrument in gas measurement field, especially smart card gas meter.
Existing gas meter is the mechanical type gas meter, is mainly assisted with the mechanical digital counter by drum to constitute precision height, accurate measurement, low price.But this table in use needs more managerial personnel, and the charge difficulty is big.
The purpose of this utility model provides a kind of precision height, accurate measurement, purchases behind the gas smart card gas meter with gas earlier.
The purpose of this utility model is achieved through the following technical solutions: a kind of watchcase that comprises, drum is assisted, digicounter, the smart card gas meter of turnover tracheae, it is characterized in that fixing on the watchcase control enclosure, the turnover tracheae stretches out control enclosure, be provided with battery case in the control enclosure and close the valve circuit, magnetoelectricity valve and control circuit thereof, IC-card and IC-card deck, cpu central processing unit (PIC57) and peripheral filtering shaping circuit, power-fail detection circuit, the acoustic alarm device, also be provided with sensor in the watchcase, the magnet steel of bonding sensor on the wheel disc of digicounter, an end of bonding sensor tongue tube on the wheel disc seat of digicounter, the peripheral filtering shaping circuit integrated package of the other end of tongue tube and cpu central processing unit U
4(4093) the 5th pin connects, and IC-card is by deck P
4The peripheral filtering shaping circuit integrated package of TEST pin (the 4th pin) and cpu central processing unit U
3(40106) the 5th pin connects, deck P
4SDA (the 2nd pin), SLC (the 3rd pin), CARDPOWER (the 1st pin) directly connect with the respective foot of cpu central processing unit, the input end of acoustic alarm device connects with the ALA-RMOUT of cpu central processing unit (the 10th pin), the VALVEA of cpu central processing unit (the 14th pin), VALVEB (the 16th pin) respectively with the magnetoelectricity valve controling circuit in two triode N
1, N
2Base stage connect the 20th pin of cpu central processing unit and power-fail detection circuit integrated package U
5(LM363) the 1st pin connects, and closes the normally closed contact of switch S 1 in the valve circuit and connects with relay in the valve controling circuit, is welded with magnetic core on the mild steel core of motion bar corresponding end in the magnetoelectricity valve.The magnetoelectricity valve is made of magnetic core, coil, motion bar, spring, rubber valve; The peripheral filtering shaping circuit of cpu central processing unit is by integrated package U
2(4093), U
3(40106), U
4(4093), resistance R
1～R
8, capacitor C
1～C
3Constitute; The magnetoelectricity valve controling circuit is by triode N
1, N
2, resistance R
10～R
11, capacitor C
5～C
7, the magnetoelectricity valve coil constitutes: power-fail detection circuit is by integrated package U
6(LM363), stabilivolt Z
1, resistance R
13, adjustable potentiometer W
1Constitute; Close valve electric routing switch S
1, electrochemical capacitor E
2Constitute.
The utility model is on the basis of original gas meter, application sensors and the work of cpu central processing unit technology control magnetoelectricity valve, adopt the IC smart card as each household gas rate card, IC-card is through commercial encryption, the user specially blocks special use, after selling IC-card behind the gas and inserting deck, start the unlatching of magnetoelectricity valve through cpu central processing unit, easy to use.The utility model is a new and high technology and the combining of the product for civilian use, and has very high social benefit.
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is a magnetoelectricity valve arrangement synoptic diagram in the utility model;
Accompanying drawing 3 is the utility model principle of work block scheme;
Accompanying drawing 4 is the utility model electrical schematic diagram;
In the accompanying drawing: the 1st, upper casing, the 2nd, threeway, the 3rd, magnetoelectricity valve, the 4th, microcomputer plate, the 5th, joint, the 6th, IC-card, the 7th, gas meter, the 8th, buzzer, the 9th, magnet steel, the 10th, tongue tube, the 11st, microswitch, the 12nd, battery, the 13rd, magnetic core, the 14th, coil, the 15th, motion bar, the 16th, spring, the 17th, rubber valve, integrated package U
1(PIC57), U
2(4093), U
3(40106), U
4(4093), U
5(2404), socket P
1～P
4, switch S
1, relay D
1～D
2, triode N
1～N
2, capacitor C
1～C
9, resistance R
1～R
13, stabilivolt Z
1, electrochemical capacitor E
1～E
2
Progressive in conjunction with the accompanying drawings and embodiments explanation the utility model, the utility model increases a upper casing 1 on the basis of gas meter 7, threeway 2 and joint 5 lengthenings also stretch out upper casing, magnet steel 9 in the sensor is bonded on the wheel disc of digicounter, bonding sensor tongue tube 10 on the wheel disc seat of digicounter, be provided with the magnetoelectricity valve that constitutes by magnetic core 13, coil 14, motion bar 15, spring 16, rubber valve 17 in the upper casing 1, battery 12, hummer 8 and circuit board and IC-card.The entire circuit course of work is: circle magnet steel 9 of rotating disk meets once with tongue tube 10, and tongue tube 10 adhesives this moment when rotating disk leaves, so, are given pulse signal of pulse input logic.There is a drop-down resistance R 4 the pulse input, and tongue tube 10 disconnects, and input end is low, and when meeting, tongue tube 10 is connected, and input end is high.Capacitor C
1, resistance R
3Constitute differentiating circuit and integrated package U
4(4093) form this schmitt trigger, the voltage stabilizing time is by capacitor C temporarily
1, resistance R
3Decision.Integrated package U
4: whether B exports pulse also is decided by 13 pin, U
4, the 13rd pin is connected to the output of circuit for cancelling pulse interference, if 13 pin are that height promptly allows pulse to pass through, when coming pulse, U
4: the B upset, if 13 pin are that inhibiting pulse passes through for hanging down, even come pulse, U
4: B output is always high and can not overturns.Circuit for cancelling pulse interference by 4 with non-this schmitt trigger, this schmitt trigger of not gate, two resistance, electric capacity is formed, pulse is from integrated package U
4The 5th pin input, the output control signal is from integrated package U
3(40106) the 2nd pin output is connected to U simultaneously
4The 6th pin, U
4The 13rd pin, whether gating pulse enters circuit for cancelling pulse interference and pulsed reset logical circuit.Suppose pulse input this moment effectively, i.e. integrated package U
3The 2nd pin be high level, come a pulse, integrated package U this moment
4The 5th pin uprise integrated package U then by low
4The 4th pin by high step-down, the 4th pin of integrated package is connected to integrated package U
4The 1st pin and the 2nd pin, integrated package U then
4The 3rd pin uprise by low, pass through resistance R
1To electrochemical capacitor E
1Charging, E
1Positive pole is connected to integrated package U
4The 9th pin, E
1Anodal level is raise by low level, when rising to threshold voltage Vth, and integrated package U
4The 10th pin by hypermutation Zhi, integrated package U
4The 10th pin be connected to integrated package U
2(4093) the 1st pin at this moment, is supposed integrated package U
2The 2nd pin be high (U
2.2By PIC control, if U
2.2For low, pulse input is invalid), integrated package U then
2The 3rd pin be high, integrated package U
2The 3rd pin be connected to integrated package U
3The 1st pin, integrated package U
3The 2nd pin be low, this shows, come a pulse after, through behind the 35ms, circuit for cancelling pulse interference is output as low, inhibiting pulse resets, after this, integrated package U
4The 5th pin keep high level, i.e. in the process that pulse came, integrated package U
3The 2nd pin be always low.The pulse past tense, integrated package U
1The 5th pin be low, integrated package U
4The 3rd pin step-down, electrochemical capacitor E
1On the electric charge that fills pass through resistance R
1, R
2Discharge, after 4 seconds, electrochemical capacitor E
1Cathode voltage is reduced to threshold values, integrated package U
4The 10th pin uprise integrated package U by low
2The 3rd pin by high step-down, integrated package U
3The 2nd pin uprise enabling pulse and reset by low, this shows, pulse is back (4 seconds are the back in the past) in the past, just allow next pulse effective, because disconnecting moment, tongue tube 10 can produce a string disturbing pulse, after 4 seconds, after not existing, disturbing pulse do not allow pulse effective again, so just prevent effectively that disturbing pulse from producing mistake to PIC and resetting.
The IC-card interface: (1) and cpu i/f, by integrated package U
1(PIC57) provide clock input SCL (the 24th pin), bidirectional data line SOA (25 pin), IC-card power supply are by PIC, and the Z/O mouth is exported, and PIC output driving force is 20mA.(2) plug-in card resets: the IC-card deck judges by such mechanism whether IC-card is plugged, and 2 contacts are arranged on the deck, when card is not plugged, and the contact of two contacts, card is plugged and is made its disconnection.Card is not inserted, the contact contact, and the TEST end is integrated package U
3The 5th pin is high, U
3The 6th pin is low, U
3The 13rd pin is low, U
3The 12nd pin is high.Card is plugged, and the contact disconnects, and the TEST end is U
3The 5th pin is by pull down resistor R
6Drag down U
3The 6th pin is high, produces a short pulse.(3) dialling card resets: dial card reset with insert only reset slightly different, integrated package U
3The 3rd pin connects and draws resistance, plug-in card to reset and dial the card output that resets and insert integrated package U
3.B, when having an action to produce, integrated package U
2The 4th pin is high, inserts integrated package U
2If the 9th pin is integrated package U
2The 8th pin is high, then integrated package U
2The 10th pin is low, integrated package U
2The 8th pin is the control signal of PIC57 output when being high, allows plug-in card or dials the card pulse and pass through, and when invalid, plug-in card or dial card and can not introduce PIC57 and reset.
CPU:(1) with integrated package U
5(2404) interface, by clock line, bidirectional data line, SCL (U
1The 24th pin) and SOA (U
1The 25th pin) interface, integrated package U
5(240) 4 power supplys are by PIC, and the I/O mouth provides, and are the same with above-mentioned IC-card interface herein.(2) the total following signal wire of CPU, a, warning output interface (U
1The 10th pin); B, power control line (U
1The 11st pin), provide the card power supply, (U
1The 12nd pin) provides E2POM power supply; C, the correct indication of card CARDRIGHT (U
1The 13rd pin); D, valve control VALVEA, VALVEB (U
1The 14th pin, the 15th pin); E, p-wire, PTEST pulse test (U
1The 19th pin), CTEST, card test (U
1The 18th pin), (U
1The 20th pin) low electrical testing; F, LCD transfer and survey interface (U
18th, 9 pin).
Detection of power loss: circuit is by amplifier chip U
6(LM353), the high adjustable potentiometer W of 2M precision
1, 4V stabilivolt Z
1Form.Amplifier power supply is provided by PIC, I/O, needs to detect opening power when whether hanging down electricity, does not power at ordinary times.Stabilivolt W
1The same route PIC of power supply and amplifier power supply provides voltage stabilizing at 4V, supplies with the amplifier negative pole.Amplifier anode is provided through dividing potential drop by power supply, and power supply just often potentiometer provides dividing potential drop to be higher than 4V, and when battery was used up soon, cell voltage descended, and dividing potential drop drops to and is lower than 4V, and amplifier is output as low.
Acoustic alarm hummer: a, when being lower than 5m with gas
2The time, every 0.1m that uses
2Hummer rings once, reminds the user to buy the gas plug-in card.B, when detecting battery and use up, hummer rings, and reminds the user to change battery.
Valve control: (1) normal switch valve, when driving valve, PIC57 output, VALEVA is high, triode N
1, N
2Conducting, relay D
1, D
2Closure makes positive source be connected to VANEAA, and negative pole is connected to VALVEBB, gives positive pulse of valve like this, and valve is opened.When closing valve, PIC output VALVEB is high, triode N
1, N
2Conducting makes relay D
2, D
2Closure makes positive source be connected to VALVEBB, and negative pole is connected to VALVEAA, gives negative pulse of valve like this, makes the valve closure.(2) valve is closed in power down: battery case has such mechanism, i.e. microswitch S
1, battery case lid is shut, microswitch S
1The normally opened contact closure, normally closed contact disconnects, 12 couples of electric capacity E of battery
2Charging.Battery case lid is opened, and normally closed contact disconnects, and battery 12 stops electric capacity E
2Charging, the normally closed contact closure, the closed control end of the capacitance cathode of the good electricity of Yan and valve is connected, and makes the valve closure.
Claims (6)
1, a kind of watchcase that comprises, drum is assisted, digicounter, the smart card gas meter of turnover tracheae, it is characterized in that fixing on the watchcase control enclosure, the turnover tracheae stretches out control enclosure, be provided with battery case in the control enclosure and close the valve circuit, magnetoelectricity valve and control circuit thereof, IC-card and deck, cpu central processing unit (PIC57) and peripheral filtering shaping circuit, power-fail detection circuit, the acoustic alarm device, also be provided with sensor in the watchcase, the magnet steel of bonding sensor on the wheel disc of digicounter, an end of bonding sensor tongue tube on the wheel disc seat of digicounter, the peripheral filtering shaping circuit integrated package of the other end of tongue tube and cpu central processing unit U
4(4093) the 5th pin connect, and IC-card is by deck P
4The peripheral filtering shaping circuit integrated package of TEST pin (the 4th pin) and cpu central processing unit U
3(40106) the 5th pin connects, deck P
4SDA (the 2nd pin), SLC (the 3rd pin), CARDPOWER (the 1st pin) directly connect with the respective foot of cpu central processing unit, the input end of acoustic alarm device connects with the ALARMOUT pin (the 10th pin) of cpu central processing unit, the VALVEA of cpu central processing unit (the 14th pin), VALVEB (the 16th pin) respectively with the magnetoelectricity valve controling circuit in two triode N
1, N
2Base stage connect, the 20th pin of cpu central processing unit connects with the 1st pin of power-fail detection circuit integrated package U6 (LM363), switch S in the valve circuit of pass
1Normally closed contact connect with relay in the valve controling circuit, be welded with magnetic core on the mild steel core of motion bar corresponding end in the magnetoelectricity valve.
2, smart card gas meter according to claim 1 is characterized in that the magnetoelectricity valve is made of magnet steel, coil, motion bar, spring, rubber valve.
3, smart card gas meter according to claim 1 is characterized in that the peripheral filtering shaping circuit of cpu central processing unit is by integrated package U
2(4093), U
3(40106), U
4(4093), resistance R
1～R
8, capacitor C
1～C
3Constitute.
4, smart card gas meter according to claim 1 is characterized in that the magnetoelectricity valve controling circuit is by triode N
1, N
2, resistance R
10～R
11, capacitor C
6～C
7, the magnetoelectricity valve coil constitutes.
5, smart card gas meter according to claim 1 is characterized in that power-fail detection circuit is by integrated package U
6(LM4363), stabilivolt Z
1, resistance R
13, adjustable potentiometer W
1Constitute.
6, smart card gas meter according to claim 1 is characterized in that closing valve electric routing switch S
1, electrochemical capacitor E
2Constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240746 CN2259650Y (en) | 1995-10-30 | 1995-10-30 | Intelligent card gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240746 CN2259650Y (en) | 1995-10-30 | 1995-10-30 | Intelligent card gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259650Y true CN2259650Y (en) | 1997-08-13 |
Family
ID=33882267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240746 Expired - Fee Related CN2259650Y (en) | 1995-10-30 | 1995-10-30 | Intelligent card gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259650Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099023C (en) * | 2000-06-14 | 2003-01-15 | 北京三金智能仪表有限公司 | Measuring and controlling method of gas meter and its device |
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN103324108A (en) * | 2013-06-26 | 2013-09-25 | 山东潍微科技股份有限公司 | Control device used for achieving intermittent service of single-chip microcomputer |
-
1995
- 1995-10-30 CN CN 95240746 patent/CN2259650Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099023C (en) * | 2000-06-14 | 2003-01-15 | 北京三金智能仪表有限公司 | Measuring and controlling method of gas meter and its device |
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN103324108A (en) * | 2013-06-26 | 2013-09-25 | 山东潍微科技股份有限公司 | Control device used for achieving intermittent service of single-chip microcomputer |
| CN103324108B (en) * | 2013-06-26 | 2016-07-06 | 山东潍微科技股份有限公司 | One is used for realizing single-chip microcomputer intermittently used and controls device |
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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 |