CN110400423A - A kind of multi-functional flowmeter of integral type Internet of Things and control method - Google Patents
A kind of multi-functional flowmeter of integral type Internet of Things and control method Download PDFInfo
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- CN110400423A CN110400423A CN201910713893.7A CN201910713893A CN110400423A CN 110400423 A CN110400423 A CN 110400423A CN 201910713893 A CN201910713893 A CN 201910713893A CN 110400423 A CN110400423 A CN 110400423A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012937 correction Methods 0.000 claims abstract description 38
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 11
- 239000000567 combustion gas Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 10
- 239000013589 supplement Substances 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000003034 coal gas Substances 0.000 claims description 8
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 5
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 4
- 239000001282 iso-butane Substances 0.000 claims description 4
- 235000013847 iso-butane Nutrition 0.000 claims description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 4
- 102100038591 Endothelial cell-selective adhesion molecule Human genes 0.000 claims description 3
- 101000882622 Homo sapiens Endothelial cell-selective adhesion molecule Proteins 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000001273 butane Substances 0.000 claims 1
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- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims 1
- 238000007726 management method Methods 0.000 description 9
- 239000003345 natural gas Substances 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
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- 238000011002 quantification Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- 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
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
A kind of multi-functional flowmeter of integral type Internet of Things and control method, integrated unit is corrected including at least flow measurement, background server, advance payment module is provided in the flow measurement amendment integrated unit, the connection of background server described in the advance payment module, the background server carries out payment management to the advance payment module, mark condition correction module in the flow measurement amendment integrated unit is according to the collected operating condition flow of flow base table and operating condition volume, the collected temperature of temperature collecting module and the collected pressure of pressure acquisition module carry out mark condition flow, mark the amendment of condition volume.The present invention have the advantages that can to correct with throughput and volume and integrated level it is high.
Description
Technical field
The present invention relates to gas meter technical fields, and in particular to a kind of multi-functional flowmeter of integral type Internet of Things and control
Method.
Background technique
Existing natural gas measurement scheme is
Intelligent volume correction instrument is the intelligent secondary meter designed for gas flowmeter, and correction instrument can realize temperature, pressure
Power amendment, directly temperature, pressure, operating condition volume flow and the total amount, mark condition volume flow and total amount of detection display medium, and have
There are many signals to export, and constitutes Web-based Service System.
Volume correction instrument is by temperature, pressure detecting digital channel, flow detection digital channel and microprocessor unit, liquid crystal
Driving circuit and other auxiliary circuits form.And it is furnished with outer defeated signaling interface, the multiple signals sent from each sensor are converted
Formula operation is substituted into according to equation of gaseous state by microprocessor after processing, realizes display and multi-signal teletransmission on the spot.
Summary of the invention
The object of the present invention is to provide a kind of volume correction instrument with pre paid functionality and GPRS or NB-lot transfer function,
It is connected directly with flow sensor, by microprocessor acquire the traffic pulse of flow sensor, gas pressure signal,
Gas temperature signal, the correction-compensation for carrying out flow and volume.To compensated mark condition volume, the mode or GPRS of IC card are used
Or NB-lot remote mode is monitored and accounting management.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of more function of integral type Internet of Things
Energy flow meter includes at least flow measurement and corrects integrated unit, background server, and the flow measurement is corrected in integrated unit
It is provided with advance payment module, the connection of background server described in the advance payment module, the background server is to described
Advance payment module carries out payment management, and the mark condition correction module in the flow measurement amendment integrated unit is according to flow base table
Collected operating condition flow and the collected temperature of operating condition volume, temperature collecting module and pressure acquisition module are collected
Pressure carries out mark condition flow, mark condition volume amendment.
As a preference of the present invention, the advance payment module is supplemented with money by IC card seated connection mouth and/or payment platform.
As a preference of the present invention, the flow base table passes through three kinds of signals below microprocessor samples: normal burst
Signal, positive and negative rotaring signal and magnetic disturbance signal.
As a preference of the present invention, being provided with safety circuit module, the safety circuit in the advance payment module
Module is ESAM hardware platform.
As a preference of the present invention, further include valve control unit, when user supplements with money and detained in the advance payment module
To when closing threshold values, then valve control unit closes electronic valve.
As a preference of the present invention, having two between the pre-payment plate and the valve positioner of the valve control unit
Anti- trimming, two outer electric wires, two 485 communication lines.After any line is cut, then the valve positioner closes the electricity
Control valve.
As a preference of the present invention, further including pressure regulator, the pressure regulator is set to the inlet end of the flow base table
Connection, the control terminal of the pressure regulator are connect with the background server.
As a preference of the present invention, it is provided with pressure relief device between the pressure regulator and the flow base table, it is described
Pressure relief device include relief valve and coal gas detection sensor, the pressure relief device and the coal gas detection sensor are distinguished
It is connect with the background server.
A kind of control method of the multi-functional flowmeter of integral type Internet of Things, includes the following steps,
Step 1 powers on and pre-payment module and mark condition correction module in flow measurement amendment integrated unit is made to establish and lead to
Letter carries out GPRS or NB-lot with background server and communicates, and communicates with valve control unit foundation；
Step 2, the microprocessor in the mark condition correction module acquire operating condition flow and operating condition by flow base table
Volume, the absolute temperature that measured flux is acquired by temperature collecting module and the local atmospheric pressure of pressure acquisition module acquisition；
Step 3 determines the national standard classification that compressibility factor calculation method uses, according to 17747.2 " natural gas compressing of GB/T
The calculating part 2 of the factor: calculated with mole composition " need to microprocessor input setting methane, ethane, propane,
The combustion gas mole fraction value such as normal butane, iso-butane, CO2, N2, H2；According to " the calculating of gas deviation factor of GB/T 17747.3
Third portion: calculated with physics value " then need to microprocessor input setting combustion gas high position calorific capacity, relative density and
The mole fraction value of CO2, H2；
Step 4, the mark condition correction module is by corrected Calculation thus by the operating condition flow and the operating condition body
Product is modified to corresponding mark condition flow and mark condition volume；
The mark condition flow and the mark condition volume are input to pre-payment by step 5, the mark condition correction module
Module, pre-payment module carries out expense deduction according to the mark condition flow and the mark condition volume, when the prepayment
User supplements with money by button to when closing threshold values in money module, then valve control unit closes electronic valve.
As a preference of the present invention, taking flow measurement amendment integrated unit with backstage in the step one
Business device carries out GPRS or NB-lot communication；
In the step two, the microprocessor is by GPRS or NB-lot by the operating condition flow, described
Operating condition volume, the absolute temperature of the measured flux, the local atmospheric pressure are sent to background server；
In the step four, the background server passes through synchronous corrected Calculation with the mark condition correction module
To which the operating condition flow and the operating condition volume are modified to corresponding calibration mark condition flow and calibration mark condition
Volume；
In the step 5, the background server is according to calibration mark condition flow and calibration mark condition
Volume carries out expense and calculates to obtain calibration value of deducting fees, and before pre-payment module progress expense deduction, will need
The expense of deduction is compared with the calibration with value of deducting fees, as a result equal, is normally deducted fees；As a result the unequal then described backstage
The multi-functional flowmeter of integral type Internet of Things where server pre-payment module described to this carries out fault flag, and enters step
Six；
Step 6, the calibration is sent to the pre-payment module with value of deducting fees by the background server, described pre-
Payment module is deducted fees according to the calibration with value of deducting fees.
In conclusion the invention has the following beneficial effects:
The present invention have the advantages that can to correct with throughput and volume and integrated level it is high.
Detailed description of the invention
Fig. 1 is the system block diagram of the first embodiment of the invention；
Fig. 2 is the system block diagram of second of embodiment of the invention；
Fig. 3 is the flow chart of first method embodiment of the present invention；
Fig. 4 is the flow chart of second method embodiment of the present invention；
In figure: 1- flow base table；2- temperature collecting module；3- pressure acquisition module；4- marks condition correction module；5- valve control
Device processed；6- electric control valve；7- background server；8-LCD display screen；9- microprocessor；10- clock module；11- integrates key mould
Block；12- integrated power supply module；13- advance payment module；14- pressure regulator；15- relief valve；16- coal gas detection sensor.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, the first embodiment of the invention includes by flow base table 1, temperature collecting module 2, pressure acquisition
Flow measurement amendment integrated unit that module 3, mark condition correction module 4 form is made of valve positioner 5 and electric control valve 6
Valve control unit, the background server 7 for carrying out data monitoring and toll administration to user, the integral type of the present embodiment
The multi-functional flowmeter of Internet of Things integrates low-power consumption LCD display 8, and microprocessor 9 reads and writes LCD data by I2C.Instrument is carried out
Meter parameter, clock module 10: integral flux meter internal key standard can also be arranged by LCD display 8 in state and parameter query
Clock information, including date Hour Minute Second can pass through screen setting or inquiry；Integrated key module 11: integral flux meter
Built-in or extraneous 6 bit keyboards, can be configured and be inquired to instrument by keyboard；Integrated power supply module 12: instrument uses
3.6V battery is less than 90uA, stays 7.2V reserve battery interface all the way, and 9-24V external power all the way as main power source, operating current
Interface is established between valve positioner 5 and advance payment module 13 by the microprocessor 9 of mark condition correction module 4 in the present embodiment
Communication is provided with advance payment module 13 in flow measurement amendment integrated unit, advance payment module 13 and valve control unit and
Background server 7 is separately connected, and background server 7 carries out payment management to advance payment module 13, wherein advance payment module 13, valve
It is communicated between the valve positioner 5 of door control unit and microprocessor 9 with RS485 communication mode, advance payment module 13 and backstage
Server 7 is communicated by GPRS or NB-lot module, the MOSBUS work of wire communication module integration standard in the present embodiment
Industry control protocol is realized by external RS485 interface and the multi-signal of instrument is inquired and is arranged；Wireless communication module is integrated
GPRS or NB-lot far module, according to setting GPRS or NB-lot module can real-time online or timing to instrument multi-signal into
Row teletransmission and setting.It supports TCP or UDP parameter, given server can be connected to IP address or domain name.Flow measurement amendment one
Mark condition correction module 4 in body unit is according to the collected operating condition flow of flow base table 1 and operating condition volume, temperature collecting module
2 collected temperature and the collected pressure of pressure acquisition module 3 carry out mark condition flow, mark condition volume amendment, are both by work
After condition flow, operating condition volume, Current Temperatures, current gas pressure are input to mark condition correction module 4, by the micro- of mark condition correction module 4
Reason device 9 is brought correction formula into according to standard gaseous equation and is calculated, to obtain corresponding mark condition flow and mark condition body
Product.Flow base table 1 uses ultrasonic flowmeter or eddy-current flowmeter as traffic detection function in the present embodiment；Temperature acquisition
Module 2 is the external metal platinum resistance temperature sensor of 24 ADC conversion chips of a high-precision, and ADC uses outside reference, measurement
Shi Zidong compensates ADC internal current source error, and interior desuperheat degree phasing meter, using dichotomy comparison temperature, sampling precision be can reach
Positive and negative 0.1% degree Celsius；Pressure acquisition module 3I2C acquires digital sensor, or passes through the external 24 ADC acquisition of wire jumper connection
Analog pressure sensor, mark condition correction module 4 then have microprocessor 9 to be modified calculating implementation, correct publicity such as in the present invention
Under:
In formula: in formula:
Volumetric flow of gas under QN- standard state；Gas volume volume under V- standard state；
Volumetric flow of gas under QV- operating condition；Volumetric flow of gas volume under V- operating condition；
The meter pressure of Pg- flowmeter pressure hole measurement；The meter pressure of Pg- flowmeter pressure hole measurement；
The locality Pa- atmospheric pressure；The locality Pa- atmospheric pressure；
Atmospheric pressure under PN- standard state；Atmospheric pressure under PN- standard state；
Absolute temperature under TN- standard state；Absolute temperature under TN- standard state；
The absolute temperature of T- measured flux；The absolute temperature of T- measured flux；
Gas compressibility factor under ZN- standard state；Gas compressibility factor under ZN- standard state；
Gas compressibility factor under Zg- work condition state；Gas compressibility factor under Zg- work condition state；
Wherein ZN/Zg is both compressibility factor, compressibility factor by mark condition correction module 4 according to gas component, according to standard
Compressibility factor calculation method calculates the supercompressibility factor of different volumes, brings standard gaseous equation calculation mark condition volume and mark into
Condition flow.According to the setting to instrument, marks condition correction module 4 and include the following three types the mode for calculating compressibility factor: using physics value
Calculated (NX-19)；(SGERG-88) is calculated with physics value；(AGA-92) is calculated with a mole composition.Compression because
The calculation basis of son is that GB/T 17747.2-1999 " the calculating part 2 of gas deviation factor: is counted with a mole composition
Calculate " or " the calculating third portion of the right compressibility factor of GB/T 17747.3-2011 weather: being calculated with physics value ".The present embodiment
In signal output have it is following several, 4-20mA output: instrument integrate DAC dress mold changing block, collected pressure, temperature, operating condition
Flow, mark condition flow, 9 result of microprocessor control DAC chip after calculating, and export 4-20mA normalized current, for external secondary
Instrument uses；Rate-adaptive pacemaker: the exportable 0-2000HZ signal directly proportional to pressure, temperature, operating condition flow, mark condition flow of instrument
It is used for external secondary meter；Do not correct operating condition pulse output: the original signal of the exportable collected flowmeter of instrument supplies
External secondary meter uses；Operating condition pulse output: the operating condition volume that microprocessor 9 is calculated in instrument is corrected, using flat
Instrument coefficient is counter pushes away umber of pulse, is output to specified interface by duty ratio %50, uses for external secondary meter；Calibration pulse
Output: the mark condition volume that microprocessor 9 is calculated in instrument is calculated by pulse list amount and needs the pulse number that exports, by accounting for
Sky ratio %50 is output to specified interface, uses for external secondary meter；Quantitative pulse output: instrument calculates microprocessor 9
Obtained mark condition volume is output to specified interface by duty ratio %50, confession is external by every cube of how many a pulses of output of setting
Secondary meter use.
The standardized payment and clause of advance payment module 13 of the invention are made up of the clause in reference the following files
Clause as defined in this: " Measurement Law of the People's Republic of China and detailed rules for the implementation "；" detailed rules and regulations are punished in metering illegal activities " 1990；It is " former
Oily natural gas stable light hydrocarbon sale handover management through quantification regulation " 1991；" Measurement System of Natural Gas technical requirements " GB/T18603-
2001；" measurement criteria evaluation method " JJF1033-2001；" measurement verification personal management method "；" general metering term and fixed
Justice " JJF1001 998；" middle combustion management through quantification handbook " ZRQB-004-2004；" management through quantification regulation " ZRSC-006-2009
(V2.0)；" measurement shoutage regulation rule of management " ZRSC-007-2009 (V2.0)；" gas flow measures instrument selection regulation " ZRSC-
008-2009(V2.0)；" projects corporate device account fills in guide ", advance payment module 13 pass through IC card seated connection mouth and/or branch
It pays platform to be supplemented with money, wherein user purchases gas system and can manage by IC card or long-range progress electronics purchase gas management and price adjustment, counts
Amount mode can be divided into charge accounting and metering clearing, realization principle: when IC card plug-in type, waking up instrument and read IC card data.Root
According to different Card Types, microprocessor 9 executes different operations.After the completion of processing, related data retrography is being entered IC card, is allowing purchase
Gas system can inquire meter status, while advance payment module 13 can also be flat by the payment platform of gas company or third party
Platform is supplemented with money, has background server 7 to supplement advance payment module 13 with money, and being provided with power failure data in advance payment module 13 can
The eeprom memory of preservation records acquisition data.Including 3 months hours, 3 years day entries, the note of in the moon, 10
Record, price adjustment record are supplemented in record with money, and start and stop record, and being provided with power failure data in the advance payments such as parameter modification record module 13 can protect
The eeprom memory deposited records acquisition data.Including 3 months hours, 3 years day entries, record in the moon, 10,
Supplement record, price adjustment record, start and stop record, parameter modification record etc. with money.
Flow base table 1 samples following three kinds of signals by the microprocessor 9 implemented by single-chip microcontroller: normal burst signal, just
Reverse signal and magnetic disturbance signal.The sampling process of normal burst signal is to pass through 9 interrupt acquisition normal burst of microprocessor
The period of signal and number；Pulse frequency is then calculated according to collected pulse period and pulse number；Again to being calculated
Pulse frequency linearly calculate gas using the average instrument coefficient (umber of pulse/m3) or 9 sections of segmentation instrument coefficients of meter calibration
Body flows through the operating condition volume and operating condition flow of flowmeter.The sampling process of positive and negative rotaring signal is while acquiring the positive and negative transfering the letter of flowmeter
Number, it is cumulative to total operating condition volume collected in normal burst signal sampling process for positive rotaring signal.Operating condition flow is positive.
For reverse signal, total operating condition volume regressive collected to 1) item.Operating condition flow is negative.The sampling process of magnetic disturbance signal is
The malice magnetic disturbance to metering system is collected, max-flow is pressed to collected pulse in normal burst signal sampling process
Amount carries out punitive metering, while advance payment module 13 then measures according to punitive and carries out charging, and increase offending user uses gas
Expense is imposed a fine as punitive, and magnetic disturbance signal detection is then implemented using the detection circuit of existing electronics gas meter.Advance payment module
Safety circuit module is provided in 13, safety circuit module is that ESAM hardware platform uses hardware electricity matched with bright China's CPU card
Road and chip, have ROM the and EEPROM security control of safety, real random number generator RNG is optional, DES/3DES accelerator and
The optional equal safeguard constructions of superencipherment coprocessor ACE, hardware security performance reach ITSEC E4 grade standard, have anti-detection,
The hardware securities characteristic such as attack resistance, self-destruction.When user supplements with money by button to when closing threshold values in advance payment module 13, then valve control is single
Member, which closes electronic valve pass threshold values, can be 0, be also possible to the certain arrearage value being arranged according to user credit grade.Pre-payment
There are two anti-trimmings, two outer electric wires, two 485 communication lines between plate and the valve positioner 5 of valve control unit.When any
After line is cut, then valve positioner 5 closes electric control valve 6.Pre-payment plate is copied less than valve state, just using valve state as
Close valve state processing.
As shown in Fig. 2, second of embodiment of the invention adds pressure regulator 14, pressure regulation on the basis of the first embodiment
Device 14 is set to the inlet end connection of flow base table 1, and the control terminal of pressure regulator 14 is connect with background server 7, in the present embodiment
Valve control unit is then not added when being used in becomes metering sled, and valve control unit is then added when being only used in single home metering.
The relief tube of pressure release is set between pressure regulator 14 and flow base table 1, and relief tube is tap line, there is pressure release dress on relief tube
It sets, pressure relief device includes relief valve 15 and coal gas detection sensor 16, and relief valve 15 is mounted on relief tube, and coal gas detection passes
Sensor 16 is installed at the port of relief tube, and pressure relief device is connect with background server 7 respectively with coal gas detection sensor 16, when
When job failure occurs in pressure regulator 14, manifold pressure is excessive, after exception occurs in the reading of flow base table 1 at this time, passes through GPRS
Or NB-lot sends fault message to background server 7, background server 7 controls relief valve 15 and carries out release, when relief valve 15
After closing, the outlet side of 16 Ren Rancong relief valve 15 of coal gas detection sensor sends to background server 7 when detecting combustion gas and protects
Information is repaired, in order to which maintenance personnel safeguards.
As shown in figure 3, first method embodiment of the invention includes the following steps,
Step 1 powers on and pre-payment module and mark condition correction module 4 in flow measurement amendment integrated unit is established
Communication carries out GPRS or NB-lot with background server 7 and communicates, and communicates with valve control unit foundation；
Step 2, the microprocessor 9 marked in condition correction module 4 acquire operating condition flow and operating condition body by flow base table 1
Product acquires local atmospheric pressure by the absolute temperature and pressure acquisition module 3 of the acquisition measured flux of temperature collecting module 2；
Step 3 determines the national standard classification that compressibility factor calculation method uses, according to 17747.2 " natural gas compressing of GB/T
The calculating part 2 of the factor: calculated with mole composition " need to microprocessor 9 input setting methane, ethane, propane,
The combustion gas mole fraction value such as normal butane, iso-butane, CO2, N2, H2；According to " the calculating of gas deviation factor of GB/T 17747.3
Third portion: calculated with physics value " then need to microprocessor 9 input setting combustion gas high position calorific capacity, relative density and
The mole fraction value of CO2, H2；
Step 4, mark condition correction module 4 are modified calculating thus by operating condition flow and work by using correction formula
Condition volume is modified to corresponding mark condition flow and mark condition volume；
Step 5, mark condition correction module 4 will mark condition flow and mark condition volume is input to pre-payment module, pre-payment module
Expense deduction is carried out according to mark condition flow and mark condition volume, update is synchronized to background server 7 when deducting the fee and is kept
The remaining sum value of user account, when user supplements with money by button to when closing threshold values in advance payment module 13, then valve control unit closes electricity
Sub- valve.
As shown in figure 4, second method embodiment of the invention includes the following steps,
Step 1 powers on and pre-payment module and mark condition correction module 4 in flow measurement amendment integrated unit is established
Communication carries out GPRS or NB-lot with background server 7 and communicates, and communicates with valve control unit foundation, so that flow measurement is repaired
Positive integrated unit is communicated with the progress of background server 7 GPRS or NB-lot；
Step 2, the microprocessor 9 marked in condition correction module 4 acquire operating condition flow and operating condition body by flow base table 1
Product acquires local atmospheric pressure by the absolute temperature and pressure acquisition module 3 of the acquisition measured flux of temperature collecting module 2,
Microprocessor 9 passes through GPRS or NB-lot for operating condition flow, operating condition volume, the absolute temperature of measured flux, local atmospheric pressure
It is sent to background server 7；
Step 3 determines the national standard classification that compressibility factor calculation method uses, according to 17747.2 " natural gas compressing of GB/T
The calculating part 2 of the factor: calculated with mole composition " need to microprocessor 9 input setting methane, ethane, propane,
The combustion gas mole fraction value such as normal butane, iso-butane, CO2, N2, H2；According to " the calculating of gas deviation factor of GB/T 17747.3
Third portion: calculated with physics value " then need to microprocessor 9 input setting combustion gas high position calorific capacity, relative density and
The mole fraction value of CO2, H2；
Step 4, mark condition correction module 4 are modified calculating thus by operating condition flow and work by using correction formula
Condition volume is modified to corresponding mark condition flow and mark condition volume, background server 7 with mark condition correction module 4 by using repairing
The corrected Calculation that positive formula synchronizes is to be modified to corresponding calibration mark condition stream for operating condition flow and operating condition volume
Amount and calibration mark condition volume；
Step 5, mark condition correction module 4 will mark condition flow and mark condition volume is input to pre-payment module, background server
7, which carry out expense with mark condition volume according to calibration mark condition flow and calibration, calculates to obtain calibration value of deducting fees, and works as prepayment
Before taking module progress expense deduction, the expense deducted will be needed to be compared with calibration with value of deducting fees, it is as a result equal then normal
It deducts fees, is both pre-payment module according to mark condition flow and mark condition volume progress expense deduction, to background service when deducting the fee
Device 7 synchronizes the remaining sum value for updating and keeping user account, when user supplements with money by button to pass threshold values in advance payment module 13, then
Valve control unit closes electronic valve；As a result unequal then background server 7 is to the integral type object where the pre-payment module
Multi-functional flowmeter of networking carries out fault flag, and enters step 6；
Step 6, the mutatis mutandis value of deducting fees of 7 high-ranking officers of background server are sent to pre-payment module, and advance payment module 13 is according to calibration
With deducting fees, value is deducted fees.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of multi-functional flowmeter of integral type Internet of Things, it is characterised in that: include at least flow measurement amendment integrated unit, after
Platform server (7), the flow measurement is corrected to be provided with advance payment module (13) in integrated unit, the advance payment module
(13) background server (7) connection described in, the background server (7) carry out payment pipe to the advance payment module (13)
Reason, the flow measurement correct the mark condition correction module (4) in integrated unit according to the collected operating condition stream of flow base table (1)
Amount and operating condition volume, the collected temperature of temperature collecting module (2) and the collected pressure of pressure acquisition module (3) carry out
Mark condition flow, mark condition volume amendment.
2. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 1, it is characterised in that: the advance payment
Module (13) is supplemented with money by IC card seated connection mouth and/or payment platform.
3. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 1, it is characterised in that: the flow base
Table (1) samples following three kinds of signals: normal burst signal, positive and negative rotaring signal and magnetic disturbance signal by microprocessor (9).
4. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 1 or 2, it is characterised in that: described is pre-
Safety circuit module is provided in payment module (13), the safety circuit module is ESAM hardware platform.
5. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 1, it is characterised in that: further include valve control
Unit processed, when advance payment module (13) the interior user supplements with money by button to when closing threshold values, then valve control unit closes electronics
Valve.
6. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 5, it is characterised in that: the pre-payment plate
There are two anti-trimmings, two outer electric wires, two 485 communication lines between the valve positioner (5) of the valve control unit.When
After any line is cut, then the valve positioner (5) closes the electric control valve (6).
7. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 1, it is characterised in that: further include pressure regulator
(14), the pressure regulator (14) is set to the inlet end connection of the flow base table (1), the control of the pressure regulator (14)
End is connect with the background server (7).
8. a kind of multi-functional flowmeter of integral type Internet of Things according to claim 7, it is characterised in that: the pressure regulator
(14) pressure relief device is provided between the flow base table (1), the pressure relief device includes relief valve (15) and combustion
Gas detection sensor (16), the pressure relief device and the coal gas detection sensor (16) respectively with the background server
(7) it connects.
9. a kind of control method of the multi-functional flowmeter of integral type Internet of Things, it is characterised in that: include the following steps,
Step 1 powers on and pre-payment module and mark condition correction module (4) in flow measurement amendment integrated unit is made to establish and lead to
Letter carries out GPRS or NB-lot with background server (7) and communicates, and communicates with valve control unit foundation；
Step 2, microprocessor (9) in the mark condition correction module (4) by flow base table (1) acquire operating condition flow with
And operating condition volume, by temperature collecting module (2) acquire measured flux absolute temperature and pressure acquisition module (3) acquisition work as
Ground atmospheric pressure；
Step 3 determines the national standard classification that compressibility factor calculation method uses, according to 17747.2 " gas deviation factor of GB/T
Calculating part 2: calculated with mole composition " need to be to methane, ethane, the propane, just of the input setting of microprocessor (9)
The combustion gas mole fraction value such as butane, iso-butane, CO2, N2, H2；According to " the calculating of gas deviation factor the of GB/T 17747.3
3 parts: calculated with physics value " then need to microprocessor (9) input setting combustion gas high position calorific capacity, relative density and
The mole fraction value of CO2, H2；
Step 4, the mark condition correction module (4) is by corrected Calculation thus by the operating condition flow and the operating condition body
Product is modified to corresponding mark condition flow and mark condition volume；
The mark condition flow and the mark condition volume are input to pre-payment by step 5, mark condition correction module (4)
Module, pre-payment module carries out expense deduction according to the mark condition flow and the mark condition volume, when the prepayment
Money module (13) interior user supplements with money by button to when closing threshold values, then valve control unit closes electronic valve.
10. a kind of modification method of multi-functional flowmeter of integral type Internet of Things according to claim 9, it is characterised in that:
In the step one, lead to flow measurement amendment integrated unit with background server (7) progress GPRS or NB-lot
Letter；
In the step two, the microprocessor (9) passes through GPRS or NB-lot for the operating condition flow, the work
Condition volume, the absolute temperature of the measured flux, the local atmospheric pressure are sent to background server (7)；
In the step four, the background server (7) passes through synchronous amendment meter with the mark condition correction module (4)
It calculates the operating condition flow and the operating condition volume being modified to corresponding calibration mark condition flow and calibration mark
Condition volume；
In the step 5, the background server (7) is according to calibration mark condition flow and calibration mark condition
Volume carries out expense and calculates to obtain calibration value of deducting fees, and before pre-payment module progress expense deduction, will need
The expense of deduction is compared with the calibration with value of deducting fees, as a result equal, is normally deducted fees；As a result the unequal then described backstage
The multi-functional flowmeter of integral type Internet of Things where server (7) pre-payment module described to this carries out fault flag, and enters
Step 6；
The calibration is sent to the pre-payment module, the prepayment with value of deducting fees by step 6, the background server (7)
Money module (13) is deducted fees according to the calibration with value of deducting fees.
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| CN201910698770 | 2019-07-31 | ||
| CN2019106987700 | 2019-07-31 |
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| CN111693119A (en) * | 2020-07-29 | 2020-09-22 | 中国计量科学研究院 | High-precision flow calibration equipment |
| CN113570475A (en) * | 2021-07-26 | 2021-10-29 | 成都秦川物联网科技股份有限公司 | Cross-network sharing method and system for energy metering data of intelligent pipe network |
| CN117437722A (en) * | 2023-12-15 | 2024-01-23 | 西安旌旗电子股份有限公司 | Split type prepayment water meter system and management method thereof |
| US11979697B2 (en) | 2021-07-26 | 2024-05-07 | Chengdu Qinchuan Iot Technology Co., Ltd. | Methods and internet of things systems for obtaining natural gas energy metering component |
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