CN107389160A - A kind of detection means and detection method for detecting gas meter, flow meter card table - Google Patents
A kind of detection means and detection method for detecting gas meter, flow meter card table Download PDFInfo
- Publication number
- CN107389160A CN107389160A CN201710756887.0A CN201710756887A CN107389160A CN 107389160 A CN107389160 A CN 107389160A CN 201710756887 A CN201710756887 A CN 201710756887A CN 107389160 A CN107389160 A CN 107389160A
- Authority
- CN
- China
- Prior art keywords
- flow
- meter
- gas meter
- gas
- detection
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/10—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with alarm or warning devices, e.g. indicating the interrupting of the supply
Abstract
The present invention relates to a kind of detection means and detection method for detecting gas meter, flow meter card table.It is characterized in that the gas meter, flow meter including mating connection, IC-card controller, flow detection module and valve, IC-card controller includes MCU, metering communication interface, flow detection interface, power supply, Valve controlling, data storage, display alarm and wireless communication module.The present invention is not to influence the metering of gas meter, flow meter normal discharge and without maloperation as principle, monitoring and metering to user's gas is completed by the way of gas meter, flow meter is combined using flow detection module, gas meter, flow meter is judged when flow detection module has monitored flow and gas meter, flow meter does not walk several and performs relevant action.
Description
Technical field
The present invention relates to a kind of detection means and detection method for detecting gas meter, flow meter card table.
Background technology
Natural gas, coal gas and liquefied gas have been widely used in social every field, as dedicated for measurement combustion gas body
The diaphragm gas meter of product flow, because its accuracy of measuring is high, cost-effective, technology maturation, the reliable, steady quality of metering etc. are excellent
Point turns into that Current production is maximum, most widely used and most representational gas metering instrument.And diaphragm gas meter number wheel is stuck
It is common table tool failure, commonly referred to as " card table ".The reason for card table failure occur mainly following several respects：
1. because transport, carry, install when collision etc. reason, make guiding valve bonnet tilt；
2. toggle has and come off or there is displacement in bearing；
3. screw pitches, the stuck transmission mechanism of exotic；
4. occurrence count running part abrasion in use causes.
During generation card table failure, mechanical number wheel is stuck to be found in time, while the north source that can not also get to the bottom of it, it will to combustion
Gas company brings very big tolerance loss and trade dispute.
For gas meter, flow meter user, this failure can only could be found when registering one's residence meter reading；It is usually logical for intelligent gas meter
Cross monitoring table tool and do not measure number of days to judge whether that " card table " occurs.By pre-setting " card table number of days " in controller, when
Monitor that stem-winder number wheel does not produce metrical pulse signal for a long time, when the time exceedes " the card table number of days " set, then controller is sent out
Go out and close valve signal, cut-out table inner valve stops supply.User can only allow gas company personnel after sale to visit maintenance side by reporting for repairment
It can continue to use gas.Many gas users may stay out for a long time, therefore to avoid impacting the just conventional gas of user, and reduce and sell
The maintenance workload of visiting of personnel afterwards, " card table number of days " can typically set larger, and this also just brings necessarily to gas company
Tolerance loss.
The phenomenon of diaphragm gas meter card table is the sector existing technological difficulties jointly, and its feature has：It is unpredictable, no
Can monitor, can not get to the bottom of it north source the features such as.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of detection for detecting gas meter, flow meter card table
The technical scheme of device and detection method.
The detection means of described a kind of detection gas meter, flow meter card table, it is characterised in that gas meter, flow meter, IC including mating connection
Card controller, flow detection module and valve, IC-card controller include MCU, metering communication interface, flow detection interface, power supply
Control, Valve controlling, data storage, display alarm and wireless communication module, it is responsible for the gas meter, flow meter that user is measured with gas and passes through arteries and veins
Punching or digital communication mode are connected with metering communication interface, and by real-time volume flow information transmission to MCU, meter is performed by MCU
Take, show, data storage or communication；Flow detection module by way of communication respectively with power supply and flow detection interface
It is connected, is responsible for flow monitoring, when MCU needs to obtain flow monitoring information, gives flow detection module by power supply first
Power supply, now flow detection module normal operation and flow status information now is transmitted data by flow detection interface
To MCU, IC-card controller judges whether card performance occur as storing current shape first if having after flow monitoring information is obtained
State information, and by display or built-in buzzer prompting alarm, notify user to safeguard in time, while pass through built-in wireless telecommunications
Module sends this information to gas company control centre in time, if not fixed a breakdown in time within the time of agreement, valve
Gate control obtains MCU and closes valve instruction, and valve is performed and closes valve events, and operation of recording information；The responsible normal metering of data storage,
Simultaneously recording system information each status information and can be obtained by external data line.
The detection means of described a kind of detection gas meter, flow meter card table, it is characterised in that the flow detection module passes through body
The arrival end of valve is placed on, body is connected by flange with valve, and connection pedestal is provided with body, and flow detection module leads to
Connection pedestal is crossed to be arranged on body；The flow detection module includes flow detection sensor, signal conditioning circuit plate, metal
Cover shell and data wire, flow detection sensor are connected with signal conditioning circuit plate, signal conditioning circuit plate by data wire with
IC-card controller is connected, flow detection sensor through connection pedestal stretch into body, signal conditioning circuit plate by with signal
The metal cap shell that modulate circuit plate is engaged is fixedly installed on connection pedestal.
The detection means of described a kind of detection gas meter, flow meter card table, it is characterised in that the flow detection module is built in valve
In door, flow detection module includes flow detection sensor, signal conditioning circuit plate, connecting rod and data wire, and flow detection passes
Sensor is arranged on signal conditioning circuit plate, and signal conditioning circuit plate is connected with connecting rod, and connecting rod is coordinated by seal inserts
Enter in valve, and connecting rod is located at the center of valve inlet or outlet, the data wire that connecting rod is drawn controls with IC-card
Device is connected.
The detection means of described a kind of detection gas meter, flow meter card table, it is characterised in that in the flow detection module and valve
It is placed in inside gas meter, flow meter, flow detection module is connected with the IC-card controller on gas meter, flow meter by data wire.
The detection means of described a kind of detection gas meter, flow meter card table, it is characterised in that the flow detection sensor is MEMS
Thermal flow rate sensor or ultrasonic flow sensor.
A kind of detection means of described detection gas meter, flow meter card table, it is characterised in that the MEMS thermal flow rate sensors bag
A thermal source is included, two symmetrical detection resistances is provided with thermal source both sides, there are two environment temperature resistance respectively in downstream, wherein
One environment temperature resistance is formed by signal conditioning circuit and thermal source to be fed back so that thermal source is higher by one than external environment all the time
Fixed temperature value, another environment temperature resistance measurement medium temperature are used for the temperature-compensating of MEMS thermal flow rate sensors,
MEMS thermal flow rate sensors are connected by lead with the signal conditioning circuit plate of flow detection module.
A kind of detection means of described detection gas meter, flow meter card table, it is characterised in that the tune on the signal conditioning circuit plate
Reason circuit includes：
Reference power supply module：It is responsible for whole signal conditioning circuit and the power supply of MEMS thermal flow rate sensors；
Flow signal processing module：The differential voltage signal of a pair of detection resistances of MEMS thermal flow rate sensors and pipeline are situated between
The corresponding relation of mass flow amount transfers to 24 bit AD samples, voltage analog signal is changed after the pretreatment of signal filter amplification circuit
MCU processing is transferred to for data signal；
Flow sensor fault detection module：Detection MEMS thermal flow rate sensor each point of-state voltages in real time, are sampled by AD
After transfer to MCU processing differentiate MEMS thermal flow rate sensors whether normal work；
Temperature signal regulation module：Temperature sensor voltage signal on MEMS thermal flow rate sensors is handed over after AD is sampled
By MCU process temperature informations；
Analog power module and digital power module：Give the analog voltage sum of system respectively using independent voltage stabilizing chip respectively
Word power supply is powered；
Power control module：The switch of MEMS thermal flow rate sensor each several part power supplys is controlled respectively, is reduced system power dissipation and is kept away
Exempt from the interference between each sensor element.
The detection method of described a kind of detection gas meter, flow meter card table, it is characterised in that testing process is as follows：
1）IC-card controller obtains combustion gas meter reading by count pulse or digital communication mode, and performs counting, charging and letter
Cease the associative operation of storage；
1.1）It is default to timer 1 according to gas meter, flow meter table rated flow index after system electrification completes the initialization of IC-card controller
In the sampling period, then start timer 1, system enters resting state；
1.2）Then corresponding sampling period interrupt service routine when timer 1 produces spilling, system is waken up automatically, by resting state
Measured into gas meter, flow meter and obtain subprogram；
1.3）IC-card controller is performing above-mentioned 1.1）-1.2）Workflow obtain gas meter, flow meter reading information after, data are entered
Row respective handling, above-mentioned 1.1）-1.2）After the completion of workflow, system preserves correlating markings position information, is again introduced into dormancy shape
State, the arrival of next timing sampling cycle interruption is waited, repeat 1.1）-1.3）Operating process；
2）When user's gas, gas meter, flow meter normally counts and flow information is passed into IC-card controller, then judges gas meter, flow meter just
Card performance is not present as IC-card controller performs normal running operation in often operation；If during user's gas, gas meter, flow meter occur card table without
Method counts, then real flow information can not be passed into IC-card controller, and now IC-card controller judges there are 2 kinds of situations：With
With gas or there is not the performance of gas meter, flow meter card as now performing following circular flow monitoring flow in family：
2.1）When IC-card controller is previously given device 2 set sampling time t, then start timer 2, when timing to then calmly
When device 2 produce overflow and produce interrupt signal, system is automatically waken up, system by dormancy micro energy lose pattern enter MEMS flows inspection
Survey pattern；
2.2）Power-on control gives MEMS flow detections module power supply, MEMS flow detections module complete first initialization, from
Work is examined, the work of traffic detection at once if system is normal, and the flow signal Qv detected in real time is believed by numeral
Number interface closes MEMS flow detection module power supplys to reduce system power dissipation after passing to IC-card controller；
2.3）IC-card controller differentiates flow signal Qv ＞ gas meter, flow meters most after the flow signal of MEMS flow detection modules is obtained
Low discharge qmin, if judging that pipeline has flow more than if, at this moment it is repeated 2 times execution 2.1）-2.2）If now it is still flow letter
Number Qv ＞ gas meter, flow meter minimum discharge qmin, then explanation confirm that pipeline has flow really through repeatedly differentiating；
2.4）During IC-card controller confirms that pipeline has flow, still do not increase if reading the reading of gas meter, flow meter during this period,
Then illustrating pipeline has a gas flowing, and user is with gas, and gas meter, flow meter does not count, then judges card performance occur as if during this period
The reading for reading gas meter, flow meter has increase, then illustrates gas meter, flow meter normal operation, exit MEMS flow detection patterns at once；
3）If judge card performance occur as now record storage current state information, and carrying by display screen and buzzer first
Awake user is safeguarded in time, while information is passed to the processing of control centre of gas company in time by built-in wireless communication module；
4）Warning message starts timing after sending, if timely having handled failure within the time of setting, IC-card controller closes
Close alarm normal operation；If still there is no handling failure within the time set in advance, perform close valve events simultaneously at once
This action message of record storage, and close valve to the last item is sent to control centre of gas company by built-in wireless communication module
Enter low-power consumption mode after information；
5）IC-card controller needs gas company to send professional to in-situ processing after performing pass valve events and entering low-power consumption mode
After failure, valve can be opened again, perform normal mode of operation.
The present invention, as flow detection module, is installed in gas meter, flow meter by using micro energy lose MEMS thermal flow rate sensors
Portion is installed at outside as independent component, to pipeline gas carry out batch (-type) monitoring, when find gas meter, flow meter do not walk it is several and
When having traffic flow, prompt fault alarm and close valve, solve existing gas meter, flow meter in actual use, user is in just conventional gas
When do not count card performance as, avoid for a long time the metering loss brought is not measured with gas.
Brief description of the drawings
Fig. 1 is the structured flowchart of the present invention；
Fig. 2 is the block diagram that MEMS thermal flow rate sensors are connected with IC-card controller；
Fig. 3 is the schematic diagram that flow detection module is placed on valve；
Fig. 4 is the schematic diagram of flow detection module in Fig. 3；
Fig. 5 is the schematic diagram that flow detection module is built in valve；
Fig. 6 is the schematic diagram that IC-card controller, flow detection module and valve are built in gas meter, flow meter；
Fig. 7 is the schematic diagram of flow detection module in Fig. 6；
Fig. 8 is card table overhaul flow chart；
In figure：1- gas meter, flow meters, 2-IC card controllers, 3- flow detection modules, 4- valves, 5- bodys, 6- connection pedestals, 7- flows
Detection sensor, 8- signal conditioning circuit plates, 9- metal cap shells, 10- data wires, 11- sealing rings, 12- hexagon socket head cap screws,
13- connecting rods, 14- micro-channel structures.
Embodiment
With reference to Figure of description, the invention will be further described：
A kind of detection means for detecting gas meter, flow meter card table, including the gas meter, flow meter 1 of mating connection, IC-card controller 2, flow detection mould
Group 3 and valve 4, IC-card controller 2 include MCU, metering communication interface, flow detection interface, power supply, Valve controlling, number
According to storage, display alarm and wireless communication module, it is responsible for user and passes through pulse or digital communication mode with the gas meter, flow meter that gas measures
It is connected with metering communication interface, by real-time volume flow information transmission to MCU, charging, display, data storage is performed by MCU
Or communication；Flow detection module 3 by I2C, RS232 or RS485 communication modes using wire respectively with power supply and stream
Amount detection interface is connected, and is responsible for flow monitoring, when MCU needs to obtain flow monitoring information, first by power supply to stream
Amount detection module power supply, now flow detection module normal operation and passes through flow detection interface by flow status information now
MCU is transferred data to, IC-card controller judges whether card performance occur as if having first after flow monitoring information is obtained
Current state information is stored, and is alarmed by display or built-in buzzer prompting, notifies user to safeguard in time, while by built-in
Wireless communication module send this information to gas company control centre in time, if not excluded in time within the time of agreement
Failure, then the valve instruction of Valve controlling acquisition MCU passes, performs to valve and closes valve events, and operation of recording information；Data storage is responsible for
Normal metering while each status information of recording system information can simultaneously be obtained by external data line.
Flow detection module can be placed on valve, be specially：Flow detection module 3 is placed on valve 4 by body 5
Arrival end, without changing gas meter, flow meter or valve body structure, need to only use I2C, RS232 or RS485 by data wire, will be real-time
Flow status information passes to IC-card controller.Body 5 is connected by flange with valve, and connection pedestal is provided with body
6, flow detection module is arranged on body by connecting pedestal；Flow detection module includes flow detection sensor 7, signal is adjusted
Reason circuit board 8, metal cap shell 9 and data wire 10, flow detection sensor 7 are connected with signal conditioning circuit plate 8, signal condition
Circuit board 8 is connected by data wire 10 with IC-card controller 2, and flow detection sensor is stretched into body through connection pedestal, is believed
Number modulate circuit plate is fixedly installed on by the metal cap shell 9 being engaged with signal conditioning circuit plate to be connected on pedestal.Metal
Cover housing top end is provided with screwed hole, and screw thread is used to connect water-proof metal bellows, and data wire one end passes through water-proof metal bellows
It is connected to IC-card controller, the data wire other end and flow detection sensor（Such as MEMS flow sensor）It is connected, is responsible for processing
The analog signal of flow detection sensor；Metal cap shell uses to be combined with being connected the sealing ring 11 embedded on pedestal using accurate
Mode seals, and symmetrically shell is fixed with body base connecting seat using two hexagon socket head cap screws 12 in both sides.
When using MEMS thermal flow rate sensors, micro-channel structure and built-in MEMS flow sensor are placed in body
The heart, and it is parallel with flow velocity direction.Micro-channel structure and pipeline rectifier structure are combined simultaneously, improve flow sensor measurement
The Flow Field Distribution in region, improve the measurement accuracy and uniformity of product.
The function that flow detection module is completed includes：
(1) flow detection, computing, data storage, independent demarcation, calibrating；
(2) temperature survey, computing, compensation；
(3) Transducer fault detection；
(4) sensor and IC-card controller communication, are communicated to IC-card controller by information such as flow, temperature, states, receive simultaneously
The order of IC-card controller performs corresponding operation.
Flow detection module can be built in valve, and flow detection module includes flow detection sensor 7, signal condition electricity
Road plate 8, connecting rod 13 and data wire 10, flow detection sensor 7 are arranged on signal conditioning circuit plate 8, signal conditioning circuit
Plate 8 is connected with connecting rod 13, connecting rod 13 by seal coordinate is inserted in valve 4, and connecting rod be located at valve inlet or
The center of outlet, the data wire that connecting rod is drawn are connected with IC-card controller.When using MEMS thermal flow rate sensors,
Micro-channel structure 14 is integral with connecting rod, is put down respectively positioned at MEMS thermal flow rate sensors using the thick flake structures of 1mm
It is at the top and bottom of face and parallel with MEMS thermal flow rate sensors surface；To pass using epoxy resin embedding adhesive inside connecting rod
Sensor circuit board is integrated with component, reaches the purpose of pressure-resistant seal.
Flow detection module and valve can also be built in inside gas meter, flow meter, flow detection module and the IC on gas meter, flow meter
Card controller is connected by data wire.
The present invention flow detection sensor can use MEMS thermal flow rate sensors, ultrasonic flow sensor or its
It can realize the sensor of tiny flow quantity detection.
Specifically, MEMS thermal flow rate sensors include a thermal source, two symmetrical detection electricity are provided with thermal source both sides
Resistance, there are two environment temperature resistance respectively in downstream, one of environment temperature resistance passes through signal conditioning circuit and thermal source shape
Into feedback so that thermal source is higher by a fixed temperature value than external environment all the time, another environment temperature resistance measurement medium temperature
The temperature-compensating for MEMS thermal flow rate sensors is spent, MEMS thermal flow rate sensors pass through lead and flow detection module
Signal conditioning circuit plate is connected.
Modulate circuit on above-mentioned signal conditioning circuit plate includes：
Reference power supply module：It is responsible for whole signal conditioning circuit and the power supply of MEMS thermal flow rate sensors；
Flow signal processing module：The differential voltage signal of a pair of detection resistances of MEMS thermal flow rate sensors and pipeline are situated between
The corresponding relation of mass flow amount transfers to 24 bit AD samples, voltage analog signal is changed after the pretreatment of signal filter amplification circuit
MCU processing is transferred to for data signal；
Flow sensor fault detection module：Detection MEMS thermal flow rate sensor each point of-state voltages in real time, are sampled by AD
After transfer to MCU processing differentiate MEMS thermal flow rate sensors whether normal work；
Temperature signal regulation module：Temperature sensor voltage signal on MEMS thermal flow rate sensors is handed over after AD is sampled
By MCU process temperature informations；
Analog power module and digital power module：Give the analog voltage sum of system respectively using independent voltage stabilizing chip respectively
Word power supply is powered；
Power control module：The switch of MEMS thermal flow rate sensor each several part power supplys is controlled respectively, is reduced system power dissipation and is kept away
Exempt from the interference between each sensor element.
The power supply of flow detection module is mainly provided and controlled by IC-card controller, and passes through I2C, RS232 or RS485 etc.
Digital communication gives the information transmissions such as flow, state to IC-card controller.
A kind of detection method that can detect gas meter, flow meter card table, testing process are as follows：
1）IC-card controller obtains combustion gas meter reading by count pulse or digital communication mode, and performs counting, charging and letter
Cease the associative operation of storage；
1.1）It is default to timer 1 according to gas meter, flow meter table rated flow index after system electrification completes the initialization of IC-card controller
In the sampling period, then start timer 1, system enters resting state；
1.2）Then corresponding sampling period interrupt service routine when timer 1 produces spilling, system is waken up automatically, by resting state
Measured into gas meter, flow meter and obtain subprogram；
1.3）IC-card controller is performing above-mentioned 1.1）-1.2）Workflow obtain gas meter, flow meter reading information after, data are entered
Row respective handling, above-mentioned 1.1）-1.2）After the completion of workflow, system preserves correlating markings position information, is again introduced into dormancy shape
State, the arrival of next timing sampling cycle interruption is waited, repeat 1.1）-1.3）Operating process；
2）When user's gas, gas meter, flow meter normally counts and flow information is passed into IC-card controller, then judges gas meter, flow meter just
Card performance is not present as IC-card controller performs normal running operation in often operation；If during user's gas, gas meter, flow meter occur card table without
Method counts, then real flow information can not be passed into IC-card controller, and now IC-card controller judges there are 2 kinds of situations：With
With gas or there is not the performance of gas meter, flow meter card as now performing following circular flow monitoring flow in family：
2.1）When IC-card controller is previously given device 2 set sampling time t, then start timer 2, when timing to then calmly
When device 2 produce overflow and produce interrupt signal, system is automatically waken up, system by dormancy micro energy lose pattern enter MEMS flows inspection
Survey pattern；
2.2）Power-on control gives MEMS flow detections module power supply, MEMS flow detections module complete first initialization, from
Work is examined, the work of traffic detection at once if system is normal, and the flow signal Qv detected in real time is believed by numeral
Number interface closes MEMS flow detection module power supplys to reduce system power dissipation after passing to IC-card controller；
2.3）IC-card controller differentiates flow signal Qv ＞ gas meter, flow meters most after the flow signal of MEMS flow detection modules is obtained
Low discharge qmin, if judging that pipeline has flow more than if, at this moment it is repeated 2 times execution 2.1）-2.2）If now it is still flow letter
Number Qv ＞ gas meter, flow meter minimum discharge qmin, then explanation confirm that pipeline has flow really through repeatedly differentiating；
2.4）During IC-card controller confirms that pipeline has flow, still do not increase if reading the reading of gas meter, flow meter during this period,
Then illustrating pipeline has a gas flowing, and user is with gas, and gas meter, flow meter does not count, then judges card performance occur as if during this period
The reading for reading gas meter, flow meter has increase, then illustrates gas meter, flow meter normal operation, exit MEMS flow detection patterns at once；
3）If judge card performance occur as now record storage current state information, and carrying by display screen and buzzer first
Awake user is safeguarded in time, while information is passed to the processing of control centre of gas company in time by built-in wireless communication module；
4）Warning message starts timing after sending, if timely having handled failure within the time of setting, IC-card controller closes
Close alarm normal operation；If still there is no handling failure within the time set in advance, perform close valve events simultaneously at once
This action message of record storage, and close valve to the last item is sent to control centre of gas company by built-in wireless communication module
Enter low-power consumption mode after information；
5）IC-card controller needs gas company to send professional to in-situ processing after performing pass valve events and entering low-power consumption mode
After failure, valve can be opened again, perform normal mode of operation.
The present invention is not to influence the metering of gas meter, flow meter normal discharge and without maloperation as principle, using flow detection module and combustion
The mode that gas meter is combined completes the monitoring and metering to user's gas, when flow detection module monitored flow and gas meter, flow meter
Gas meter, flow meter is judged when not walking several and performs relevant action.
In order to reduce system Overall Power Consumption, flow detection module itself reduces oneself power consumption using intermittent duty,
The power-supply system is controlled by gas meter, flow meter main system or IC-card controller simultaneously, can arbitrarily change the cycle to pipeline according to being actually needed
Flow is monitored.
In order to prevent maloperation, flow detection module has self-checking function in itself, prevents the failure problems generation because of itself
False alarm, while the method that is compared using multiple repairing weld further improves accuracy.
The flow detection module of the present invention can be built in gas meter, flow meter using integrated design or be built in valve, can also be adopted
Stand-alone assembly is fabricated to separate mode with flowmeter pipeline to be connected.
The present invention is introduced using MEMS thermal flow rate sensors technical scheme to realize the monitoring of flow, while this hair
It is bright to be realized such as using the flow monitoring of other modes：Ultrasonic flow sensor etc..
The present invention introduces diaphragm gas meter application technology scheme, at the same the present invention also can operate with gas flowmeter and
Other all-electronin flow instruments.
Present invention employs detection means of the MEMS thermal flow rate sensors as fuel gas flow in detection gas meter, flow meter, have
Volume is small, fast response time, high sensitivity, it is low in energy consumption, close to zero initiating, without mechanical wear stability is good, cost performance is high etc.
Feature.The micro energy lose application characteristic of intelligent gas meter can be met, and can facilitates table tool add-assembly upgrading.
Due to detection sensitivity is high, close to zero initial-flow, mechanical stuck can be detected in time for different degrees of.
Using this scheme can be solved effectively because of stem-winder card table and metering that long-time gas can not be perceived and brought is damaged
Lose, prevented card table problem occur and cause the trade dispute of user and combustion gas operator long-standing problem.
Claims (8)
1. it is a kind of detect gas meter, flow meter card table detection means, it is characterised in that the gas meter, flow meter including mating connection, IC-card controller,
Flow detection module and valve, IC-card controller include MCU, metering communication interface, flow detection interface, power supply, valve
Control, data storage, display alarm and wireless communication module, it is logical by pulse or numeral with the gas meter, flow meter that gas measures to be responsible for user
News mode is connected with metering communication interface, and by real-time volume flow information transmission to MCU, charging, display, number are performed by MCU
According to storage or communication；Flow detection module is connected with power supply and flow detection interface respectively by way of communication, is responsible for
Flow monitoring, when MCU needs to obtain flow monitoring information, powered first by power supply to flow detection module, now
Flow status information now is simultaneously transferred data to MCU, IC by flow detection module normal operation by flow detection interface
Card controller judge whether after flow monitoring information is obtained occur card performance as, store current state information first if having,
And alarmed by display or built-in buzzer prompting, notify user to safeguard in time, while will by built-in wireless communication module
This information sends control centre of gas company in time, if not fixed a breakdown in time within the time of agreement, Valve controlling
Obtain MCU and close valve instruction, valve is performed and closes valve events, and operation of recording information；Data storage is responsible for normal metering and remembered simultaneously
Each status information of recording system information can simultaneously be obtained by external data line.
A kind of 2. detection means for detecting gas meter, flow meter card table according to claim 1, it is characterised in that the flow detection
Module is placed on the arrival end of valve by body, and body is connected by flange with valve, and connection pedestal is provided with body, stream
Amount detection module is arranged on body by connecting pedestal；The flow detection module includes flow detection sensor, signal is adjusted
Reason circuit board, metal cap shell and data wire, flow detection sensor are connected with signal conditioning circuit plate, signal conditioning circuit plate
It is connected by data wire with IC-card controller, flow detection sensor is stretched into body through connection pedestal, signal conditioning circuit
Plate is fixedly installed on by the metal cap shell being engaged with signal conditioning circuit plate and is connected on pedestal.
A kind of 3. detection means for detecting gas meter, flow meter card table according to claim 1, it is characterised in that the flow detection
Module is built in valve, and flow detection module includes flow detection sensor, signal conditioning circuit plate, connecting rod and data
Line, flow detection sensor are arranged on signal conditioning circuit plate, and signal conditioning circuit plate is connected with connecting rod, and connecting rod passes through
Seal, which coordinates, to be inserted in valve, and connecting rod is located at the center of valve inlet or outlet, the data that connecting rod is drawn
Line is connected with IC-card controller.
A kind of 4. detection means for detecting gas meter, flow meter card table according to claim 3, it is characterised in that the flow detection
Module and valve are built in inside gas meter, flow meter, and flow detection module is connected with the IC-card controller on gas meter, flow meter by data wire.
A kind of 5. detection means of detection gas meter, flow meter card table according to Claims 2 or 3 or 4, it is characterised in that the stream
Quantity detection sensor is MEMS thermal flow rate sensors or ultrasonic flow sensor.
A kind of 6. detection means for detecting gas meter, flow meter card table according to claim 5, it is characterised in that the MEMS hot types
Flow sensor includes a thermal source, is provided with two symmetrical detection resistances on thermal source both sides, has two environment respectively in downstream
Temperature and resistance, one of environment temperature resistance is formed by signal conditioning circuit and thermal source to be fed back so that thermal source is all the time than outer
Boundary's environment is higher by a fixed temperature value, and another environment temperature resistance measurement medium temperature is used for MEMS thermal flow rate sensors
Temperature-compensating, MEMS thermal flow rate sensors are connected by lead with the signal conditioning circuit plate of flow detection module.
A kind of 7. detection means for detecting gas meter, flow meter card table according to claim 6, it is characterised in that the signal condition
Modulate circuit on circuit board includes：
Reference power supply module：It is responsible for whole signal conditioning circuit and the power supply of MEMS thermal flow rate sensors；
Flow signal processing module：The differential voltage signal of a pair of detection resistances of MEMS thermal flow rate sensors and pipeline are situated between
The corresponding relation of mass flow amount transfers to 24 bit AD samples, voltage analog signal is changed after the pretreatment of signal filter amplification circuit
MCU processing is transferred to for data signal；
Flow sensor fault detection module：Detection MEMS thermal flow rate sensor each point of-state voltages in real time, are sampled by AD
After transfer to MCU processing differentiate MEMS thermal flow rate sensors whether normal work；
Temperature signal regulation module：Temperature sensor voltage signal on MEMS thermal flow rate sensors is handed over after AD is sampled
By MCU process temperature informations；
Analog power module and digital power module：Give the analog voltage sum of system respectively using independent voltage stabilizing chip respectively
Word power supply is powered；
Power control module：The switch of MEMS thermal flow rate sensor each several part power supplys is controlled respectively, is reduced system power dissipation and is kept away
Exempt from the interference between each sensor element.
8. a kind of detection method for detecting gas meter, flow meter card table, it is characterised in that testing process is as follows：
1）IC-card controller obtains combustion gas meter reading by count pulse or digital communication mode, and performs counting, charging and letter
Cease the associative operation of storage；
1.1）It is default to timer 1 according to gas meter, flow meter table rated flow index after system electrification completes the initialization of IC-card controller
In the sampling period, then start timer 1, system enters resting state；
1.2）Then corresponding sampling period interrupt service routine when timer 1 produces spilling, system is waken up automatically, by resting state
Measured into gas meter, flow meter and obtain subprogram；
1.3）IC-card controller is performing above-mentioned 1.1）-1.2）Workflow obtain gas meter, flow meter reading information after, data are entered
Row respective handling, above-mentioned 1.1）-1.2）After the completion of workflow, system preserves correlating markings position information, is again introduced into dormancy shape
State, the arrival of next timing sampling cycle interruption is waited, repeat 1.1）-1.3）Operating process；
2）When user's gas, gas meter, flow meter normally counts and flow information is passed into IC-card controller, then judges gas meter, flow meter just
Card performance is not present as IC-card controller performs normal running operation in often operation；If during user's gas, gas meter, flow meter occur card table without
Method counts, then real flow information can not be passed into IC-card controller, and now IC-card controller judges there are 2 kinds of situations：With
With gas or there is not the performance of gas meter, flow meter card as now performing following circular flow monitoring flow in family：
2.1）When IC-card controller is previously given device 2 set sampling time t, then start timer 2, when timing to then calmly
When device 2 produce overflow and produce interrupt signal, system is automatically waken up, system by dormancy micro energy lose pattern enter MEMS flows inspection
Survey pattern；
2.2）Power-on control gives MEMS flow detections module power supply, MEMS flow detections module complete first initialization, from
Work is examined, the work of traffic detection at once if system is normal, and the flow signal Qv detected in real time is believed by numeral
Number interface closes MEMS flow detection module power supplys to reduce system power dissipation after passing to IC-card controller；
2.3）IC-card controller differentiates flow signal Qv ＞ gas meter, flow meters most after the flow signal of MEMS flow detection modules is obtained
Low discharge qmin, if judging that pipeline has flow more than if, at this moment it is repeated 2 times execution 2.1）-2.2）If now it is still flow letter
Number Qv ＞ gas meter, flow meter minimum discharge qmin, then explanation confirm that pipeline has flow really through repeatedly differentiating；
2.4）During IC-card controller confirms that pipeline has flow, still do not increase if reading the reading of gas meter, flow meter during this period,
Then illustrating pipeline has a gas flowing, and user is with gas, and gas meter, flow meter does not count, then judges card performance occur as if during this period
The reading for reading gas meter, flow meter has increase, then illustrates gas meter, flow meter normal operation, exit MEMS flow detection patterns at once；
3）If judge card performance occur as now record storage current state information, and carrying by display screen and buzzer first
Awake user is safeguarded in time, while information is passed to the processing of control centre of gas company in time by built-in wireless communication module；
4）Warning message starts timing after sending, if timely having handled failure within the time of setting, IC-card controller closes
Close alarm normal operation；If still there is no handling failure within the time set in advance, perform close valve events simultaneously at once
This action message of record storage, and close valve to the last item is sent to control centre of gas company by built-in wireless communication module
Enter low-power consumption mode after information；
5）IC-card controller needs gas company to send professional to in-situ processing after performing pass valve events and entering low-power consumption mode
After failure, valve can be opened again, perform normal mode of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756887.0A CN107389160B (en) | 2017-08-29 | 2017-08-29 | Detection device and detection method for detecting gas meter card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710756887.0A CN107389160B (en) | 2017-08-29 | 2017-08-29 | Detection device and detection method for detecting gas meter card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107389160A true CN107389160A (en) | 2017-11-24 |
| CN107389160B CN107389160B (en) | 2023-07-04 |
Family
ID=60346527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710756887.0A Active CN107389160B (en) | 2017-08-29 | 2017-08-29 | Detection device and detection method for detecting gas meter card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107389160B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783531A (en) * | 2017-11-29 | 2018-03-09 | 廊坊新奥燃气设备有限公司 | It is a kind of to apply the tool in gas meter controller automatic checkout system, automatic checkout system and detection method |
| CN108225498A (en) * | 2018-01-26 | 2018-06-29 | 杭州先锋电子技术股份有限公司 | A kind of control system of civilian intelligent gas meter complete machine function detection equipment |
| CN109115314A (en) * | 2018-11-05 | 2019-01-01 | 廊坊新奥燃气设备有限公司 | Gas meter, flow meter ventilation operating system and test method |
| CN109975685A (en) * | 2017-12-27 | 2019-07-05 | 新智数字科技有限公司 | The detection method and detection system of GPRS domestic gas meter circuit board |
| CN111179509A (en) * | 2020-01-03 | 2020-05-19 | 广州燃气集团有限公司 | Energy-saving gas meter and implementation method and system thereof |
Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB782170A (en) * | 1954-06-30 | 1957-09-04 | Parkinson & Cowan Ltd | Improvements in or relating to coin mechanisms for gas or electricity meters |
| CN1093464A (en) * | 1992-10-05 | 1994-10-12 | 松下电器产业株式会社 | The pick-up unit of gas feeding apparatus abnormal conditions and detection method |
| JPH08167076A (en) * | 1994-12-12 | 1996-06-25 | Denjinia:Kk | Prepaid card type gas supply device |
| JPH08240473A (en) * | 1995-03-06 | 1996-09-17 | Seibu Gas Kk | Gas meter inspection device |
| JPH08278170A (en) * | 1995-04-07 | 1996-10-22 | Tokyo Gas Co Ltd | Gas meter |
| KR19990013114A (en) * | 1997-07-31 | 1999-02-25 | 유상열 | Electronic liquid meter and liquid passage detection method |
| CN2314408Y (en) * | 1997-11-21 | 1999-04-14 | 周亚非 | Intellectual integrated gas meter |
| CN2419578Y (en) * | 2000-05-22 | 2001-02-14 | 云南文通电子研究所 | IC card water meter |
| JP2001280693A (en) * | 2000-03-30 | 2001-10-10 | Mitsubishi Electric Corp | Water heater |
| JP2004205420A (en) * | 2002-12-26 | 2004-07-22 | Tokyo Gas Co Ltd | Gas meter |
| JP2007024511A (en) * | 2005-07-12 | 2007-02-01 | National Institute Of Advanced Industrial & Technology | Method and apparatus for precision flow rate measurement of gas mixture |
| JP2008134780A (en) * | 2006-11-28 | 2008-06-12 | Matsushita Electric Ind Co Ltd | Gas appliance monitoring device |
| CN201107071Y (en) * | 2007-11-20 | 2008-08-27 | 济南市长清计算机应用公司 | Intelligent gas meter |
| CN101308056A (en) * | 2007-05-20 | 2008-11-19 | 张旗 | Pipeline leakage monitoring device and technology |
| JP2009216408A (en) * | 2008-03-07 | 2009-09-24 | Panasonic Corp | Gas meter and gas metering system |
| JP2010127129A (en) * | 2008-11-26 | 2010-06-10 | Ihi Corp | Fuel gas supply device of gas engine and its tar deposit preventive method |
| CN101750118A (en) * | 2008-12-04 | 2010-06-23 | 泉州日新流量仪器仪表有限公司 | Complex type vane wheel impeller flowmeter |
| CN202012377U (en) * | 2011-04-06 | 2011-10-19 | 宁波宝虹信息技术有限公司 | Fault monitoring device for lubricating pipeline |
| CN202171841U (en) * | 2011-06-13 | 2012-03-21 | 欧福数控技术(大连)有限公司 | Intelligent anti-theft gas meter |
| CN202852428U (en) * | 2012-08-21 | 2013-04-03 | 天津市蓟县通一和管道设备制造有限公司 | Indoor gas safety and anti-theft system |
| CN203148480U (en) * | 2013-03-18 | 2013-08-21 | 武汉四方光电科技有限公司 | Ultrasound gas meter |
| CN103839391A (en) * | 2014-01-20 | 2014-06-04 | 清华大学 | Intelligent fuel gas safety metering system and control method thereof |
| CN203688023U (en) * | 2014-01-10 | 2014-07-02 | 宁波忻杰燃气用具实业有限公司 | Gas meter way locking device |
| CN104700504A (en) * | 2015-03-31 | 2015-06-10 | 成都秦川科技发展有限公司 | Safety cut-off type IC (integrated circuit) card intelligent mass flow rate gas meter and management system thereof |
| CN205642502U (en) * | 2016-05-30 | 2016-10-12 | 四川鹏翔电子科技有限责任公司 | Easily gas meter core of processing personally experiences sth. part of body |
| CN206097305U (en) * | 2016-10-10 | 2017-04-12 | 西安普瑞米特科技有限公司 | IC -card industry intelligent monitoring gas table controller |
| CN106843019A (en) * | 2015-12-03 | 2017-06-13 | 成都九十度工业产品设计有限公司 | A kind of IC-card gas meter, flow meter |
| CN106910290A (en) * | 2017-01-13 | 2017-06-30 | 成都中科慧源科技有限公司 | A kind of metering abnormality alarming system of intelligent gas meter |
| CN206363128U (en) * | 2017-01-11 | 2017-07-28 | 安徽汉威电子有限公司 | A kind of intelligent pre-payment water meter system |
| CN107036671A (en) * | 2017-06-03 | 2017-08-11 | 连云港脱普仪表有限公司 | A kind of intellectual water meter compensates sensor automatically |
-
2017
- 2017-08-29 CN CN201710756887.0A patent/CN107389160B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB782170A (en) * | 1954-06-30 | 1957-09-04 | Parkinson & Cowan Ltd | Improvements in or relating to coin mechanisms for gas or electricity meters |
| CN1093464A (en) * | 1992-10-05 | 1994-10-12 | 松下电器产业株式会社 | The pick-up unit of gas feeding apparatus abnormal conditions and detection method |
| JPH08167076A (en) * | 1994-12-12 | 1996-06-25 | Denjinia:Kk | Prepaid card type gas supply device |
| JPH08240473A (en) * | 1995-03-06 | 1996-09-17 | Seibu Gas Kk | Gas meter inspection device |
| JPH08278170A (en) * | 1995-04-07 | 1996-10-22 | Tokyo Gas Co Ltd | Gas meter |
| KR19990013114A (en) * | 1997-07-31 | 1999-02-25 | 유상열 | Electronic liquid meter and liquid passage detection method |
| CN2314408Y (en) * | 1997-11-21 | 1999-04-14 | 周亚非 | Intellectual integrated gas meter |
| JP2001280693A (en) * | 2000-03-30 | 2001-10-10 | Mitsubishi Electric Corp | Water heater |
| CN2419578Y (en) * | 2000-05-22 | 2001-02-14 | 云南文通电子研究所 | IC card water meter |
| JP2004205420A (en) * | 2002-12-26 | 2004-07-22 | Tokyo Gas Co Ltd | Gas meter |
| JP2007024511A (en) * | 2005-07-12 | 2007-02-01 | National Institute Of Advanced Industrial & Technology | Method and apparatus for precision flow rate measurement of gas mixture |
| JP2008134780A (en) * | 2006-11-28 | 2008-06-12 | Matsushita Electric Ind Co Ltd | Gas appliance monitoring device |
| CN101308056A (en) * | 2007-05-20 | 2008-11-19 | 张旗 | Pipeline leakage monitoring device and technology |
| CN201107071Y (en) * | 2007-11-20 | 2008-08-27 | 济南市长清计算机应用公司 | Intelligent gas meter |
| JP2009216408A (en) * | 2008-03-07 | 2009-09-24 | Panasonic Corp | Gas meter and gas metering system |
| JP2010127129A (en) * | 2008-11-26 | 2010-06-10 | Ihi Corp | Fuel gas supply device of gas engine and its tar deposit preventive method |
| CN101750118A (en) * | 2008-12-04 | 2010-06-23 | 泉州日新流量仪器仪表有限公司 | Complex type vane wheel impeller flowmeter |
| CN202012377U (en) * | 2011-04-06 | 2011-10-19 | 宁波宝虹信息技术有限公司 | Fault monitoring device for lubricating pipeline |
| CN202171841U (en) * | 2011-06-13 | 2012-03-21 | 欧福数控技术(大连)有限公司 | Intelligent anti-theft gas meter |
| CN202852428U (en) * | 2012-08-21 | 2013-04-03 | 天津市蓟县通一和管道设备制造有限公司 | Indoor gas safety and anti-theft system |
| CN203148480U (en) * | 2013-03-18 | 2013-08-21 | 武汉四方光电科技有限公司 | Ultrasound gas meter |
| CN203688023U (en) * | 2014-01-10 | 2014-07-02 | 宁波忻杰燃气用具实业有限公司 | Gas meter way locking device |
| CN103839391A (en) * | 2014-01-20 | 2014-06-04 | 清华大学 | Intelligent fuel gas safety metering system and control method thereof |
| CN104700504A (en) * | 2015-03-31 | 2015-06-10 | 成都秦川科技发展有限公司 | Safety cut-off type IC (integrated circuit) card intelligent mass flow rate gas meter and management system thereof |
| CN106843019A (en) * | 2015-12-03 | 2017-06-13 | 成都九十度工业产品设计有限公司 | A kind of IC-card gas meter, flow meter |
| CN205642502U (en) * | 2016-05-30 | 2016-10-12 | 四川鹏翔电子科技有限责任公司 | Easily gas meter core of processing personally experiences sth. part of body |
| CN206097305U (en) * | 2016-10-10 | 2017-04-12 | 西安普瑞米特科技有限公司 | IC -card industry intelligent monitoring gas table controller |
| CN206363128U (en) * | 2017-01-11 | 2017-07-28 | 安徽汉威电子有限公司 | A kind of intelligent pre-payment water meter system |
| CN106910290A (en) * | 2017-01-13 | 2017-06-30 | 成都中科慧源科技有限公司 | A kind of metering abnormality alarming system of intelligent gas meter |
| CN107036671A (en) * | 2017-06-03 | 2017-08-11 | 连云港脱普仪表有限公司 | A kind of intellectual water meter compensates sensor automatically |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107783531A (en) * | 2017-11-29 | 2018-03-09 | 廊坊新奥燃气设备有限公司 | It is a kind of to apply the tool in gas meter controller automatic checkout system, automatic checkout system and detection method |
| CN109975685A (en) * | 2017-12-27 | 2019-07-05 | 新智数字科技有限公司 | The detection method and detection system of GPRS domestic gas meter circuit board |
| CN108225498A (en) * | 2018-01-26 | 2018-06-29 | 杭州先锋电子技术股份有限公司 | A kind of control system of civilian intelligent gas meter complete machine function detection equipment |
| CN108225498B (en) * | 2018-01-26 | 2023-12-26 | 杭州先锋电子技术股份有限公司 | Control system of complete machine function detection equipment of civil intelligent gas meter |
| CN109115314A (en) * | 2018-11-05 | 2019-01-01 | 廊坊新奥燃气设备有限公司 | Gas meter, flow meter ventilation operating system and test method |
| CN111179509A (en) * | 2020-01-03 | 2020-05-19 | 广州燃气集团有限公司 | Energy-saving gas meter and implementation method and system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107389160B (en) | 2023-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107389160A (en) | A kind of detection means and detection method for detecting gas meter, flow meter card table | |
| CN1241082C (en) | Regulator flow measurement apparatus | |
| CN101561309B (en) | Online measurement device and measurement method thereof for pipeline flux instrument | |
| JP2020008549A (en) | Online monitoring method for metering performance of diaphragm gas meter | |
| CN105241528A (en) | Flow sensor detection platform and control method thereof | |
| CN201497548U (en) | On-line verification system of water meter | |
| US4953386A (en) | Method and apparatus for proving electronic gas meters | |
| CN207113982U (en) | A kind of detection means for detecting gas meter, flow meter card table | |
| CN209342180U (en) | A kind of Pi Tuoba flowmeter | |
| CN109855798A (en) | A kind of portable pressure in-line calibration device based on PXI bussing technique | |
| CN108709594A (en) | A kind of gas flowmeter and gas flow measurement method | |
| CN103344301B (en) | The Detection & Controling circuit of granular material material level | |
| CN202057360U (en) | Combined gas flow meter | |
| CN208953533U (en) | A kind of water pollution dnesity index auto testing instrument | |
| CN208568035U (en) | A kind of combined type alarm sensor on measuring instrument | |
| CN102645248B (en) | Self-correction heat type-precession vortex combined type gas flow measurement method | |
| CN209197985U (en) | A kind of pressure gauge with function of failure alarm | |
| CN204788587U (en) | Transient state oil consumption appearance calibration system | |
| CN108955839B (en) | Automatic flow calibrating device for electronic soap film | |
| CN209043399U (en) | A kind of orifice-plate type and hot type compound meter | |
| CN217654591U (en) | Electromechanical error detection device and system of water gauge | |
| CN208421073U (en) | A kind of instrument for measuring DC resistance with temperature precise measurement and automatic conversion function | |
| CN207741801U (en) | A kind of intelligent target type meter | |
| CN112525369A (en) | Platinum resistor temperature sensor packaging structure and temperature measurement using method thereof | |
| CN206387478U (en) | A kind of oiling machine flow meter performance testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |