CN2286864Y - Gas intelligent controllor - Google Patents

Abstract

The utility model relates to a gas intelligent controller for pipelines, which is particularly suitable for the controller on the existing civil leather film type gas meter. The utility model is characterized in that an intelligent card (IC) is used for purchasing in advance gases with definite quantity as an information carrier for aiding the gas sale and charging administration. The utility model belongs to the field of intelligent matching accessories for the gas meters. The utility model is mainly composed of a data collecting part, a counting part, a read-write part of the intelligent card (IC), a central control part, an actuator, a valve body, a casing, etc. The controller has the advantages of safety, strict and accurate operation, reliability, interference resistance and cheating resistance, which is suitable for the modernization of the gas sale management and the computer management platform for pipeline gas companies.

Description

The combustion gas intelligent controller

The utility model relates to a kind of device of pipe gas Based Intelligent Control, be specially adapted to existing civilian leather diaphragm gas meter, destiny by smart card (IC-card) forward purchasing some is an information carrier, and auxiliary coal gas is sold gas, toll administration, belongs to and the intelligent adapted field of components of gas meter.

At present, domestic most of cities, the pipe gas popularity rate is very high, the charge of combustion gas be still " the first gas of using; after check meter " traditional mode, the coal gas in each city, natural gas companies all have one for the number the no small troops that check meter, also there are many drawbacks in the manual metering charging mode in addition.In order to address this problem, produced the device of multiple auxiliary charging charge, mainly contain early stage coin-feed charging gas meter, magnetic card gas fee table, Lou Dong unit centralized automatic meter-reading formula taximeter are to adopting electronics cassette gas fee table recently.Though all adopt the forward purchasing electronic cards in Chinese patent 94244840.5 and 94220265.1 schemes, use powered battery, Single-chip Controlling, also have in addition certain tamper-proof, functions such as gas-robbery resistence.But still in following shortcoming: (1) is not discussed for the corrosive nature of the anti-coal gas of valve, (2) the control device volume is bigger, be unfavorable for the installation of gas meter, (3) adopt battery compartment, utilize interlinked mechanism to signal, battery-powered pass valve, bring possibility to user's cheating, (4) about dry cell (when energy will be used up) under limiting case, on the reliability of system guarantees, do not have good measure, when (5) are lower than 4.5V when dry cell voltage, can not guarantee that electronic cards (IC-card) read-write is correct.

In view of the prior art above shortcomings, the purpose of this utility model just provides a kind of safe, reliable abominable artificial coal gas makings that especially can be operated in, and adopt general dry battery, and the reliability of system does not rely on the state of battery.Under various abnormal conditions, solenoid valve can both close valve, the fault that may occur with the auditory tone cues user, in case do certain adjustment, operate as normal can be recovered again by system, adopts logical encrypt type I C card as information carrier, and the DV-DV voltage stabilizing power supplying circuit is arranged, guarantee system in the 2.7-5V scope, accurately signal in the read-write card.

The purpose of the utility model combustion gas intelligent controller realizes by following array structure and connected mode: intelligent controller is made up of valve body 1, shell 2, bistable electromagnetic valve 3, control circuit board 4, deck 5, battery case 6 and signal line (7,8,9,10,11), all member can be directly installed on and constitute one in the shell 2, its air intake opening and gas outlet are stretched out by the bottom surface and the end face of controller housing, the same side that the IC-card insertion mouth of housing and battery case place housing; Control circuit board comprises: central processing unit, data acquisition circuit, logical encrypt type IC-card feed circuit, bistable electromagnetic valve is driven valve, closes valve-driving circuit, power down, low power detection circuit, valve solenoid valve reserve feed circuit are closed in power down, cut off the signal wire identification circuit, the anti-interference testing circuit of extraneous high-intensity magnetic field, clock oscillation circuit, IC-card read/write circuit etc.; 1) oscillatory circuit of central processing unit provides clock signal by the crystal oscillator of 32.768K in conjunction with inverter trigger, has reduced the overall power of system widely; 2) logical encrypt type IC-card feed circuit, it is a DV--DV mu balanced circuit of forming by D5, V11, L1, V12, V14, C7, R27, R23, R25, R26, R22, C9, C8, R78, R29, R30, at the system works circuit in the 2.7--5.5V scope, its output voltage remains in the scope of 5V ± 0.25V, has guaranteed the correct read-write operation of controller to data in the logical encrypt type IC-card; 3) power down of forming by D3, V1, R5, R6, R19, R20, R21, low power detection circuit, detect the working condition of power supply, when the low electricity of power supply generation power down, power down, low power detection circuit produce look-at-me, central processing unit sends corresponding pass valve solenoid valve signal, guarantees security of system; 4) cut off the signal wire identification circuit by what three core signal wires 7, magnet steel 8, tongue tube 9, resistance 10 among Fig. 1 were formed, the collection of this controller gas consumption data is based on the mechanism 12 of having good luck of civilian leather diaphragm gas meter, there is a segment signal line 7 to be exposed to outside the housing, and metal hose protection arranged, when signal wire is cut off artificially or is destroyed, send corresponding look-at-me, central processing unit sends and closes the valve order, and setting is sheared sign, after cutting off signal wire, the user can not use gas again, and this fault needs the professional to repair; 5) the valve circuit working of being made up of V3, V4, V5, R7, R8, R9, R10, R11 of opening makes the valve opening solenoid valve, simultaneously data is deposited in D4 and preserves, and 2 human hair combing wastes of D1 go out the low level pulse signal.The signal that goes out to warn of 17 human hair combing wastes by D1 sends correct prompting by hummer G2, reminds the user to extract IC-card.Bistable electromagnetic valve is driven valve, is closed valve-driving circuit, only just works when changing valve opening solenoid, off status, is in not power consumption of static state state at ordinary times; 6) the extraneous high-intensity magnetic field disturbance detection circuit of forming by three core signal wires 7, magnet steel 8, tongue tube 9, anti-interference tongue tube 11 among Fig. 1, when the normal counting that interferes with controller when external magnetic field is gathered, when being the anti-interference tongue tube 11 of adhesive, this circuit start produces look-at-me, the System Halt gas supply removes the recovery operate as normal up to field intensity; 7) form to D1, D2 feed circuit by V9, V15, C3, R2, C6, R4, C2, by V10, C4 forms pass valve buffer circuit, when power fail or power down suddenly, these reserve feed circuit provide the enough energy, controller can cut out solenoid valve reliably, and after power supply was normal again, controller recovered operate as normal once more; All members are to support to fuse with the valve body, can be installed on the air intake opening of domestic gas meter or the gas outlet to use, and also can separate with gas meter in other position of gas piping and install and use; The air intake opening of valve body is coaxial with the gas outlet, is convenient to install on gas meter, and the valve closes face is vertically laid, but grit sedimentation in the combustion gas, and the open and close valve is reliable.The linkage interface of valve body and bistable electromagnetic valve seals with leather cup and stop-leak compound.

Below in conjunction with drawings and Examples, the utility model principle is described further.

Fig. 1 is installed in the gas meter for the structural representation and the sensor of the utility model combustion gas intelligent controller

Structural representation.

Fig. 2 is the circuit theory diagrams of the utility model combustion gas intelligent controller.

Fig. 3 is the circuit diagram of the utility model combustion gas intelligent controller.

Native system is by being that core is formed with single-chip microcomputer 89C2051 (D1).Peripheral circuit is by (D2, D3, D4, D5, R1, R2 ..., R30, C1, C2 ..., C10, V1, V2 ..., V17 and socket S1, X1 forms.

The principle of work of this device is: insert effective IC-card to controller, read the tolerance in the card automatically, and remain in the storer, remove card then and go up tolerance.At this moment, open bistable electromagnetic valve, can just use gas always, in with the gas process, be installed in the counter in the mechanism of having good luck, write down gas consumption (every usefulness 0.01 side's gas is just sent out the pulsatile once signal) automatically, Acquisition Circuit whenever detects a pulse signal, just send out once to CPU and interrupt, controller adds up, when using side's tolerance, just the numerical value in the storer is subtracted one, after this numerical value was less than certain value, controller will send alerting signal, and the prompting user purchases gas as early as possible, after, each a transducing signal is just sent out once and is reported to the police, and closes valve until using up tolerance, again hold and purchase gas, just can reuse.

Specifically when logical encrypt type IC-card inserted socket X1,9 pin, 10 pin that snap into a detector switch X1 disconnected, and 13 pin of D2 produce high level, were low through phase inverter to 12 pin of D2, made triode V2 conducting simultaneously and to single-chip microcomputer D1 generation look-at-me; The V2 conducting makes the IC-card feed circuit work of being made up of D5, V11, L1, V12, V14, C7, R27, R23, R25, R26, R22, C9, C8, R28, R29, R30, and generation+5V supply voltage is powered to IC-card on 1 pin of X1; Single-chip microcomputer D1 has no progeny in receiving, and sends a series of identifying informations by X1 and 2,3,4,7,8 pin to IC-card, and the IC-card internal information that reads back simultaneously after identification is correct, is read the coal gas number of being deposited in IC-card.When above process is correct, make the valve circuit working of being made up of V3, V4, V5, R7, R8, R9, R10, R11 of opening make the valve opening solenoid valve, simultaneously data are deposited in D4 and preserve, 2 human hair combing wastes of D1 go out the low level pulse signal.The signal that goes out to warn of 17 human hair combing wastes by D1 sends correct prompting by hummer G2, reminds the user to extract IC-card.

When the user uses coal gas, tongue tube by counting usefulness produces counting pulse signal through 8 pin of R3 to D1, D1 meter coal gas number formulary, and with D4 in the institute deposit data relatively, when data in the D4 are zero, 3 human hair combing wastes of D1 go out low level, and control is closed valve by the pass valve circuit that V6, V7, V8, R12, R13, R14, R15, R16 form, and sends caution sound by G2.

The power down of forming by D3, V1, R5, R6, R19, R20, R21, low power detection circuit, when low electricity of power supply or power down, produce look-at-me through D2 to 6 pin of D1 by the 8 pin output low level signals of D3, D1 goes out low level signal from 3 human hair combing wastes after detecting this look-at-me immediately, make and close valve circuit pass valve, send yowl sound from G2 simultaneously, remind low.

The D1 clock oscillation circuit is by 1 pin of G1, R1 and D2.2 pin are formed.For the operate as normal of D1 provides clock signal.

12 pin of R3 and D1,13 pin composition are cut off the signal wire identification circuit.When signal wire was cut off, no current passed through on the R3 resistance, can identify through 12 pin of D1, the comparer that 13 pin are formed, and send interruption to D1 internally, and control is simultaneously closed the valve circuit and closed valve at once.

When the outside had high-intensity magnetic field to disturb, it was low level that outside tongue tube closure makes 3 pin of D3, went out to interrupt to 6 human hair combing wastes of D1 by power down, low power detection circuit, made solenoid valve close valve.

V9, V15, C3, R2, C6, R4, C2 form to D1, D2 feed circuit, and C1 is the D1 reset capacitance.

V10, C4 form pass valve buffer circuit, and big capacitor C 4 provides back-up source, uses when power supply power-fail.

The scheme that the utility model provides is: adopt three joint dry cells as power supply energy, system power dissipation is extremely low, is in the QS state at ordinary times, only tens microamperes of power consumptions.Only when sending pulse moment and plug-in card read-write with gas sensor, need several milliamperes to tens milliamperes electric energy of consumption.Topworks---bistable bidirectional solenoid valve needs consuming electric power when also only the generation state switches under several situations, though electric current can reach the 0.3-0.6 peace, be Millisecond actuation time.Therefore, one group of new No. five homemade alkaline dry batteries of three joints actual measurement service time can surpass 10 months, reaches about 1 year, reaches the purpose that reduces customer using cost.

The utility model adopts the execution valve of bistable state gas electromagnetic valve as the pipe gas break-make, and taken into full account and the cooperating of valve body, the stronger anti-coal gas corrosion and the ability of impurity are arranged, and the connection interface of solenoid valve and valve body, valve body and gas meter all there is perfect seal approach.The linkage interface of solenoid valve and valve body seals with leather cup and stop-leak compound.

The logical encrypt type IC-card feed circuit that the utility model adopts, power down, low power detection circuit, bistable electromagnetic valve drive valve, close valve-driving circuit and valve reserve feed circuit are closed in power down, make the performance independence of system and battery.Promptly work as battery power in normal range, system normally moves, and when battery power was unusual, system guaranteed valve-off, the concurrent alarm that is out of order, and until changing battery, system can resume work again.The low electricity of battery, outage or short circuit all can not shone into damaging system.

The utility model has adopted cuts off the signal wire identification circuit, as individual user's malicious sabotage controller on information wire the time, controller can be discerned and detect, and close solenoid valve immediately, and irrecoverable, must repair by the professional of Gas Company, handle accordingly according to relevant regulations.

The utility model has adopted logical encrypt type IC-card as information carrier, utilizes cryptosystem of himself and Gas Company to sell the gas management system and combine, and realizes that industry specially blocks special use.Information in the IC-card can only be by the special-purpose read-write card operation of equipment of Gas Company, and its hetero-organization or individually can not illegally carry out read-write operation has per capita ensured whole safety of selling the gas management system.

The utlity model has in conjunction with several typical case in user's use, utilize various possible states of sound device prompting user and the respective handling that need do.

The utility model has fully used the incident method of driving on software design, program modularity, highly versatile.

The utility model has adopted certain anti-extraneous high-intensity magnetic field disturbance detection circuit, when the controller external world has high-intensity magnetic field close, detects and cut off gas circuit automatically, and after withdrew in magnetic field, it is normal that system can recover again.

This device has the advantages such as safety, tight, accurate, reliable and anti-interference, the anti-cheating of action, originally Contrive equipment can be directly installed on the air inlet of domestic gas meter or the gas outlet and use, and also can directly fill Use is separated with gas meter in other position at gas piping. Be specially adapted to pipe gas company and sell gas management Modernization and step into the computer management platform.

1---valve body; 2---controller housing; 3---bistable electromagnetic valve; 4---control circuit Plate; 5---deck; 6---battery case; 7---holding wire; 8---magnet steel; 9---tongue tube; 10---resistance; 11---anti-interference tongue tube.

Claims (4)

1, a kind of combustion gas intelligent controller, by valve body 1, shell 2, control circuit board 4, deck 5, battery case 6 and signal line [(7), (8), (9), (10), (11)] constitute, it is characterized in that bistable electromagnetic valve 3 is contained on the valve body of siphunculus between gas inlet and the gas outlet (1), mainly contain central processing unit (1) in the control circuit, be connected the data acquisition circuit (10) of energy input signal data with central processing unit (1), cut off signal wire identification circuit (11), the extraneous anti-interference testing circuit of high-intensity magnetic field (13), power down, low power detection circuit (5) and power supply (12); Be connected the clock oscillation circuit (2) that clock can be provided with central processing unit (1); Be connected the IC-card read/write circuit (3) of AC signal data mutually with central processing unit (1), also can connect logical encrypt type IC-card feed circuit (4) on IC-card read/write circuit (3): the pass valve that can receive central processing unit (1) output signal is carried out control circuit (7) and warning circuit (9), and can receive the bistable electromagnetic valve 3 that closes valve execution control circuit (7) and warning circuit (9) control signal, carry out also being connected to the reserve feed circuit (6) that the valve solenoid valve is closed in power down on the control circuit (7) at the pass valve.

2, combustion gas intelligent controller according to claim 1 is characterized in that:

1) oscillatory circuit of central processing unit provides clock signal by the crystal oscillator of 32.768K in conjunction with inverter trigger, has reduced the overall power of system widely.

2) logical encrypt type IC-card feed circuit, it is a DV--DV mu balanced circuit of forming by D5, V11, L1, V12, V14, C7, R27, R23, R25, R26, R22, C9, C8, R28, R29, R30, at the system works circuit in the 2.7-5.5V scope, its output voltage remains in the scope of 5V+0.25V, has guaranteed the correct read-write operation of controller to data in the logical encrypt type IC-card.

3) power down of forming by D3, V1, R5, R6, R19, R20, R21, low power detection circuit, detect the working condition of power supply, when the low electricity of power supply generation power down, power down, low power detection circuit produce look-at-me, central processing unit sends corresponding pass valve solenoid valve signal, guarantees security of system.

4) cut off the signal wire identification circuit by what three core signal wires 7, magnet steel 8, tongue tube 9, resistance 10 were formed; the collection of this controller gas consumption data is based on the mechanism 12 of having good luck of civilian leather diaphragm gas meter; there is a segment signal line 7 to be exposed to outside the housing; and metal hose protection arranged; when signal wire is cut off artificially or is destroyed; send corresponding look-at-me; central processing unit sends and closes the valve order; and setting is sheared sign; after cutting off signal wire; the user can not use gas again, and this fault needs the professional to repair.

5) the valve circuit working of being made up of V3, V4, V5, R7, R8, R9, R10, R11 of opening makes the valve opening solenoid valve, simultaneously data being deposited in D4 preserves, 2 human hair combing wastes of D1 go out the low level pulse signal, the signal that goes out to warn of 17 human hair combing wastes by D1, send correct prompting by hummer G2, remind the user to extract IC-card, bistable electromagnetic valve is driven valve, is closed valve-driving circuit, only when changing valve opening solenoid, off status, just work, be in not power consumption of static state state at ordinary times.

6) the extraneous high-intensity magnetic field disturbance detection circuit of forming by three core signal wires 7, magnet steel 8, tongue tube 9, anti-interference tongue tube 11, when the normal counting that interferes with controller when external magnetic field is gathered, when being the anti-interference tongue tube 11 of adhesive, this circuit start produces look-at-me, the System Halt gas supply is spread up to field intensity and to be recovered operate as normal;

7) form to D1, D2 feed circuit by V9, V15, C3, R2, C6, R4, C2, by V10, C4 forms pass valve buffer circuit, when power fail or power down suddenly, these reserve feed circuit provide the enough energy, controller can cut out solenoid valve reliably, and after power supply was normal again, controller recovered operate as normal once more.

3, combustion gas intelligent controller according to claim 1 and 2, it is characterized in that IC-card insertion mouth and battery case 6 in the housing place housing to be preferably in the same side, all accessory can be directly installed on and constitute one in the shell 2, and its air intake opening and gas outlet are preferably stretched out by bottom surface and end face from shell 1.

4, combustion gas intelligent controller according to claim 1 and 2, the air intake opening that it is characterized in that valve body (1) is coaxial with the gas outlet, be convenient on gas meter, install, the valve closes face is vertically laid in the valve body 1, but grit sedimentation in the combustion gas, valve body 1 seals with leather cup and stop-leak compound with the linkage interface of bistable electromagnetic valve 3.

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