CN102706511B - Device for transferring pressure quantity value through internet in real-time environment - Google Patents

Device for transferring pressure quantity value through internet in real-time environment Download PDF

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CN102706511B
CN102706511B CN201210171176.4A CN201210171176A CN102706511B CN 102706511 B CN102706511 B CN 102706511B CN 201210171176 A CN201210171176 A CN 201210171176A CN 102706511 B CN102706511 B CN 102706511B
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pressure
standard
data table
pvc
transfer
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CN102706511A (en
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金承信
高正红
高永卫
惠增宏
焦予秦
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Northwestern Polytechnical University
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Northwestern Polytechnical University
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Abstract

The invention discloses a device for transferring a pressure quantity value through the internet in a real-time environment. A real-time environment measurement system transfers a real-time temperature value, an atmospheric pressure value and a moisture value to an environmental data table module through an internet server to obtain an environmental data table, a standard pressure source is generated into a standard data table in the environmental data table, and the standard data table is stored into a standard data table storage and carries out pressure quantity value transfer with the internet server through a standard data table output module. The device can generate the standard data table in the real-time environment, the precision and the reliability of transfer can be ensured, a large number of manpower and material waste is avoided, and the calibration cost is saved. The device has the advantages of simple method, low cost, higher efficiency and practical application prospect.

Description

Under a kind of real time environment, by internet, carry out the device of pressure magnitude transmission
Technical field
The present invention relates to pressure magnitude transmission and remote measurement and control technology field, under especially a kind of real time environment, utilize PVC tables of data by internet, to carry out the device of pressure magnitude transmission.
Background technology
Any measurement instrument, for various reasons, all has error in various degree.Transmission of quantity value is unified measurement instrument value and the important means that reduces error, is to guarantee metering result basis accurately and reliably.By calibrating, the measurement unit value that National primary standard is reappeared is delivered to work measurement instrument through measurement standard at different levels, to guarantee the accurate with consistent of the measured value of measurand.Transmission of quantity value is by high-class measurement standard going down.Pressure measurement utensil and pressure acquisition equipment more need the transmission of pressure magnitude, because the pressure measurement utensil through assay approval, after using after a while, because the factors such as internal soundness variation of the impact of environment or improper use, imperfect maintenance, parts change the meter characteristic that causes pressure measurement utensil, so need regularly examine and determine it by the measurement standard of regulation grade.The process of implementing transmission of quantity value is very strict to the requirement of environment (temperature value, atmospheric pressure value, humidity value), the variation of any environmental parameter all can affect the result that pressure transmits, the variation of environment in the time of need to recording metering process according to national metrological verification regulations.The method of pressure magnitude transmission is Transfer Standards source to be sent to the metrological service in high one-level (country, provinces and cities, area), use the generally acknowledged pressure criteria of country to calibrate or measure, then with Transfer Standards source, pressure survey or pressure acquisition equipment are calibrated or measured.All adopt both at home and abroad in this way pressure magnitude transmission is carried out in Transfer Standards source and pressure acquisition equipment at present.There is every year a large amount of Transfer Standards sources need to carry out pressure magnitude transmission, need to consume a large amount of human and material resources and funds like this.At present, both at home and abroad actively seeking the whole bag of tricks and change and reduce the present situation of this wasting of resources.For example: the Chinese patent that 1, application number is 200810220161.6 " a kind of remote calibration method and system thereof ", a kind of correcting mechanism that facilitates is provided, a large amount of instrument and equipments are carried out to remote monitoring, between the method calibration source, instrument to be calibrated and remote calibration main frame, must connect by DB9 cross cable or GPIB cable, the pressure magnitude that can not be undertaken between standard source and Transfer Standards source by internet is transmitted.2, the Chinese patent that application number is 201110332582.X " a kind of remote intelligent pressure sensor calibration system ", can enough tables of data pass through the precision of internet remote intelligent pressure sensor calibration, but cannot carry out the pressure magnitude transmission between standard source and Transfer Standards source, also not consider the impact of the variation of real time environment.3, the Chinese patent that application number is 201020189756.2 " a kind of device of converting pressure calibration data into data tables ", P-V-C tables of data under several standard environment parameters is provided, but can not carry out internet remote calibration press device, more cannot carry out according to real time environment the pressure magnitude transmission of PVC tables of data internet.
Summary of the invention
In order to overcome prior art, cannot carry out according to real time environment the deficiency of the pressure magnitude transmission of PVC tables of data internet, the invention provides the device that carries out pressure magnitude transmission under a kind of real time environment by internet, can utilize PVC tables of data by internet remote calibration press device, and carry out pressure magnitude transmission according to real time environment.
The technical solution adopted for the present invention to solve the technical problems is: comprise standard pressure generator, normal data table storer, normal data table output module, environmental parameter module, Internet Server, Transfer Standards source, pressure acquisition system, pressure acquisition industrial computer and real time environment measuring system.
Real time environment measuring system is passed to environmental data table module by real-time temperature value T, atmospheric pressure value P and humidity value R by Internet Server, obtains environmental data table T-P-R real time environment, standard pressure generator generates T-P-R real time environmentunder normal data table PVC standard N, N stable air pressure P of standard pressure generator output standard N, simultaneously to there being N magnitude of voltage V standard Nwith N calibration factor value C standard N, P standard N=V standard N* C standard N, by P standard N, V standard N, C standard Ncorresponding one by one, make normal data table PVC calibration N; By PV c standard Nstore in normal data table storer, and carry out pressure magnitude transmission by normal data table output module and Internet Server,
Pressure magnitude transmission has two kinds of modes:
1, PVC standard Nby Internet Server, transfer to Transfer Standards source, PVC standard Nin V standard Nby one-chip computer, transfer to DA converter, be converted to DC voltage, control pneumatic flowrate controller and drive peristaltic pump, output to standard transducer gas circuit input end, standard transducer obtains N atmospheric pressure value P transfer Standards source N, simultaneously to there being N magnitude of voltage V pass pass standard source Nwith N coefficient value C transfer Standards source N, P transfer Standards source N=V transfer Standards source N* C transfer Standards source N, respective production becomes Transfer Standards source data table PVC one by one transfer Standards source N, transfer to one-chip computer, PVC transfer Standards source Nby LAN (Local Area Network), transfer to pressure acquisition industrial computer, PVC standard Nalso by LAN (Local Area Network), transfer to pressure acquisition industrial computer, in pressure acquisition industrial computer, use PVC standard ndata are to PVC transfer Standards source Ndata are carried out precision verification, obtain accuracy class and the error in Transfer Standards source.
2, pressure acquisition system is formed and in the pressure transducer of ,Mei road, is stored pressure sensor data table PVC by L road pressure transducer sensor N, each PVC sensor Ncomprise N input air pressure P sensor N, a N voltage V sensor N, a N pressure coefficient C sensor N, P sensor N=V sensor N* C sensor N, the air pressure output P in Transfer Standards source transfer Standards source Nl road pressure transducer by gas circuit to pressure acquisition system, pressure transducer obtains N air pressure P calibrating sensors N, have N V one to one simultaneously calibrating sensors Nwith N C calibrating sensors coefficient Ndata, make L pressure sensor data table PVC calibrating sensors Nto pressure acquisition industrial computer, PVC transfer Standards source Nby LAN (Local Area Network), to pressure acquisition industrial computer, use PVC transfer Standards source NpVC to L road pressure transducer respectively calibrating sensors Ndata are carried out precision verification, obtain accuracy class and the error of pressure acquisition system L road pressure transducer.Described L is greater than 16 random natural number, and N is greater than 2 random natural number.
Described real time environment measuring system comprises temperature sensor, barometric pressure sensor, humidity sensor and environmental data table module.Measure in real time temperature value T, atmospheric pressure value P and the humidity value R of Transfer Standards source and pressure acquisition system environment of living in, transfer to respectively to environmental data table module, obtain environmental data table T-P-R real time environment.
Described Transfer Standards source comprises one-chip computer, DA converter, pneumatic flowrate controller, peristaltic pump and standard transducer.PVC standard Nin V standard Nby one-chip computer, transfer to DA converter, be converted to DC voltage, control pneumatic flowrate controller and drive peristaltic pump, output pressure is to standard transducer gas circuit input end, and standard transducer obtains N air pressure P transfer Standards source Ndata have N voltage V one to one simultaneously transfer Standards source Nwith N coefficient C transfer Standards source Ndata, make Transfer Standards source data table PVC transfer Standards source N, PVC transfer Standards source Nby one-chip computer, transfer to Internet Server.
The invention has the beneficial effects as follows: the present invention can generate the normal data table PVC under real time environment according to real time environment (temperature, atmospheric pressure, humidity) standard N, carry out pressure magnitude transmission between standard pressure generator and Transfer Standards source and the pressure magnitude transmission between Transfer Standards source and pressure acquisition system.Normal data table PVC standard Nthe precision of the transmission that pressure magnitude transmission can guarantee and reliability, saved a large amount of human and material resources wastes, saved the cost of calibration, and method is simple, with low cost, and efficiency is higher, has actual application prospect.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present invention (wherein thick line is LAN (Local Area Network), and dotted line is gas circuit);
Fig. 2 is real time environment measuring system schematic diagram;
Fig. 3 is Transfer Standards source schematic diagram (wherein thick line is LAN (Local Area Network), and dotted line is gas circuit).
Embodiment
The present invention adopts real time environment measuring system that real-time temperature value T, atmospheric pressure value P, humidity value R value are passed to respectively to environmental data table module, obtains real time environment tables of data T-P-R real time environment, by Internet Server and internet transmission, to the environmental parameter module of standard source side, inquire about T-P-R after inquiry real time environmentif standard environment parameter can directly be extracted the normal data table PVC under standard environment parameter from PVC data table stores device standard Ndata, if not standard environment parameter is created on real-time T-P-R by standard pressure generator real time environmentnormal data table PVC under environment standard N, by real time environment T-P-R real time environmentnormal data table PVC standard Nstore in PVC data table stores device, and carry out pressure magnitude transmission by normal data table output module to Internet Server.1, normal data table PVC standard Nby internet, Transfer Standards source is examined and determine and obtained Transfer Standards source accuracy class and error.2, the pressure magnitude transmission of Transfer Standards source and pressure acquisition system is examined and determine and is obtained pressure acquisition system pressure sensor data accuracy class and error.
The technical solution adopted for the present invention to solve the technical problems is: comprise standard pressure generator, PVC data table stores device, normal data table output module, environmental parameter module, Internet Server, Transfer Standards source, pressure acquisition system, pressure acquisition industrial computer, real time environment measuring system.
Apply the technology in Chinese granted patent CN201020189756.2 " a kind of device of converting pressure calibration data into data tables " by name, the normal data table PVC under the standard environment parameter that startup standard pressure generator generates standard Nwith PVC data table stores device, N stable air pressure P of standard pressure generator output standard N, simultaneously to there being V standard Nand C typical coefficient Noutput, and meet P standard N=V standard N* C typical coefficient N, wherein, P standard Nn atmospheric pressure value of standard pressure generator output, V mark accurate source Nn magnitude of voltage of standard pressure generator output, C typical coefficient Nn calibration factor value of high-precision pressure sensor in standard pressure generator, by P standard N, V standard N, C typical coefficient Nthree groups of data are corresponding one by one, make normal data table PVC calibration N, real time environment measuring system is passed to respectively environmental data table module by real time temperature value T, atmospheric pressure value P, humidity value R value, obtains environmental data table T-P-R real time environmentto Internet Server, by internet to the environmental parameter module of standard source side, inquire about T-P-R after inquiry real time environmentif standard environment parameter is directly extracted the normal data table PVC under standard environment parameter from PVC data table stores device standard Ndata, if not standard environment parameter starts standard pressure generator and generates (generative process of Chinese granted patent CN201020189756.2 " a kind of device of converting pressure calibration data into data tables " by name) T-P-R under real time environment real time environmentnormal data table PVC standard N, by real-time T-P-R real time environmentthe normal data table PVC of environment standard Nstore in PVC data table stores device, and carry out pressure magnitude transmission by normal data table output module, Internet Server, internet, pressure magnitude transmission has two kinds of modes: 1, normal data table PVC standard Nby internet, Transfer Standards pressure source is carried out to pressure magnitude transmission, by normal data table PVC standard Ndata are passed through Internet Server, internet to Transfer Standards source, normal data table PVC standard Nin V standard Ngroup output voltage data, are converted to output dc voltage value by one-chip computer to DA converter, then drive peristaltic pump to output to standard transducer gas circuit input end to pneumatic flowrate controller, and standard transducer obtains air pressure P transfer Standards source Ndata have V one to one simultaneously transfer Standards source Nand C transfer Standards source Ndata, make Transfer Standards source data table PVC transfer Standards source N, Transfer Standards source data table PVC transfer Standards source Nthere is P transfer Standards source N, V transfer Standards source N, C transfer Standards source coefficient Nthree groups of tables of data, meet P transfer Standards source N=V transfer Standards source N* C transfer Standards source coefficient N, P wherein transfer Standards source Nn atmospheric pressure value of tables of data output, V transfer Standards source Nn magnitude of voltage of tables of data output, C transfer Standards source coefficient Nn coefficient value of tables of data output, Transfer Standards source data table PVC transfer Standards source Nto one-chip computer by LAN (Local Area Network) to pressure acquisition industrial computer, normal data table PVC standard Nby LAN (Local Area Network) to pressure acquisition industrial computer, in pressure acquisition industrial computer, according to the normal data table PVC for vertification regulation in the metering Transfer Standards source of national regulation standard Ndata mutual transmission is passed standard source tables of data PVC transfer Standards source Ndata are carried out precision verification, obtain accuracy class and the error in Transfer Standards source; 2, the pressure magnitude transmission of Transfer Standards source and pressure acquisition system: in the storer that pressure acquisition system forms ,Mei road pressure transducer by L road pressure transducer, storage has the pressure transducer PVC of input characteristics sensor Ntables of data, each PVC sensor Ntables of data has three groups of P sensor N, V sensor N, C sensor coefficient Ntables of data data, every group of tables of data has N input data and meets P sensor N=V sensor N* C sensor coefficient N, P wherein sensor Npressure transducer N input air pressure data, V sensor Nn, pressure transducer two ends voltage datas, C sensor coefficient Npressure transducer N pressure coefficient data, the air pressure output P in Transfer Standards source transfer Standards source Nby gas circuit to 1 of pressure acquisition system ... the input end of the parallel gas circuit of L road pressure transducer, pressure transducer obtains N air pressure P calibrating sensors Ndata have N V one to one simultaneously calibrating sensors Nwith N C calibrating sensors coefficient Ndata, make 1 ... L, L road pressure sensor data table PVC calibrating sensors Nto pressure acquisition industrial computer, Transfer Standards source data table PVC transfer Standards source Nby LAN (Local Area Network) to pressure acquisition industrial computer, according to the manometric measurement verification regulations of national digital tables of data PVC transfer Standards source Ndata are respectively to L road pressure sensor data table PVC calibrating sensors Ndata are carried out precision verification and are obtained respectively pressure acquisition system L road pressure sensor data accuracy class and error.(L is greater than 16 random natural number, and N is greater than 2 random natural number).
Described real time environment measuring system comprises temperature sensor, barometric pressure sensor, humidity sensor, environmental data table module.Temperature value T, the atmospheric pressure value P of the transmission side's (Transfer Standards source, pressure acquisition system) of measurement in real time environment, humidity value R value, respectively to environmental data table module, obtain environmental data table T-P-R real time environmentby internet, be passed to standard source side to Internet Server.
Described Transfer Standards source comprises one-chip computer, DA converter, pneumatic flowrate controller, peristaltic pump, standard transducer.Normal data table PVC standard Nin V standard Ngroup output voltage data are converted to output dc voltage value by one-chip computer to DA converter, and to pneumatic flowrate controller driving peristaltic pump output pressure to standard transducer gas circuit input end, standard transducer obtains air pressure P transfer Standards source Ndata have V one to one simultaneously transfer Standards source Nand C transfer Standards source coefficient Ndata, and make Transfer Standards source data table PVC transfer Standards source N, Transfer Standards source data table PVC transfer Standards source Nthere is P transfer Standards source N, V transfer Standards source N, C transfer Standards source coefficient Nthree groups of tables of data, and meet P transfer Standards source N=V transfer Standards source N* C transfer Standards source coefficient N, P wherein transfer Standards source Nn atmospheric pressure value of tables of data output, V transfer Standards source Nn magnitude of voltage of tables of data output, C transfer Standards source coefficient Nn coefficient value of tables of data output, Transfer Standards source data table PVC transfer Standards source Nby one-chip computer to Internet Server.
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is device schematic diagram of the present invention, gets L=512, N=10.It is the environmental data table module of MSC1210-JCX to model respectively that real time environment measuring system measures temperature value T=16.5 ℃, atmospheric pressure value P=976.3hPa, humidity value RH value=52% in real time, obtains environmental data table 16.5 ℃-976.3hPa-52%.The environmental parameter module that be INTEL XEON E3-1230 Internet Server, internet transmission is JCX-23 to the model of standard source side to model is again inquired about, and after inquiry, 16.5 ℃-976.3hPa-52% is not standard environment parameter.The standard pressure generator that is CCM.P-K11 by model is created on the normal data table PVC under 16.5 ℃-976.3hPa-52% environment standard N.By the normal data table PVC under 16.5 ℃-976.3hPa-52% environment standard Nstoring model into is in the PVC data table stores device of MB85RC16, and by model, is that normal data table output module to Internet Server, the internet of MSC1210-JCX carries out pressure magnitude transmission.1, normal data table PVC standard Nby internet, pressure magnitude transmission is carried out in Transfer Standards source: by normal data table PVC standard Ndata by internet to Transfer Standards source, normal data table PVC standard Nin V standard Ngroup output voltage data are that one-chip computer to the model of HD64F2138VFA10 is that the DA converter of DA9238 is converted to output dc voltage value by model, the pneumatic flowrate controller driving model that is BAO-DE-8626 to model is again that the peristaltic pump of ISM834 is input to standard transducer gas circuit input end, and standard transducer obtains air pressure P transfer Standards source Ndata have V one to one simultaneously transfer Standards source Nand C transfer Standards source coefficient Ndata, and make Transfer Standards source data table PVC transfer Standards source N.It by LAN (Local Area Network) to model, is the pressure acquisition industrial computer of IPC610.Normal data table PVC standard Nby LAN (Local Area Network) to pressure acquisition industrial computer.In pressure acquisition industrial computer according to the vertification regulation of the metering pressure measurement and control instrument of national regulation, with normal data table PVC standard Ndata are to pressure testing and controlling instrument tables of data PVC pressure testing and controlling instrument Ndata are examined and determine, and obtain pressure testing and controlling instrument accuracy class and error.2, the pressure magnitude transmission of Transfer Standards source and pressure acquisition system: model is that the pressure acquisition system You512 road pressure transducer of PSI9816 forms, the air pressure output P of pressure testing and controlling instrument transfer Standards source Nby gas circuit, export 1 of pressure acquisition system to ... the input end of the parallel gas circuit of No. 512 pressure transducers, pressure transducer obtains 10 air pressure P calibrating sensors Ndata have 10 V one to one simultaneously calibrating sensors Nwith 10 C calibrating sensors coefficient Ndata, make 1 ... the tables of data PVC of 512 512 pressure transducers in tunnel calibrating sensors Nto pressure acquisition industrial computer, the tables of data PVC on while pressure testing and controlling Yi Jiang 512 tunnels pressure testing and controlling instrument Ndata to pressure acquisition industrial computer, according to the manometric measurement verification regulations of national digital, are used Transfer Standards source data table PVC by LAN (Local Area Network) pressure testing and controlling instrument Ndata are respectively to 512 pressure sensor data table PVC calibrating sensors Ndata are carried out precision verification, obtain respectively pressure acquisition system 512 tunnel pressure sensor data accuracy class and errors.
Fig. 2 is real time environment measuring system schematic diagram, comprises that model is the temperature sensor of PT100, the barometric pressure sensor that model is RPT410, the humidity sensor that model is HMW61Y, the environmental data table module that model is JCX-HJ-6.Real time environment measuring system measure in real time environmental data table module that temperature value T=16.5 ℃, atmospheric pressure value P=976.3hPa, humidity value RH value=52% are MSC1210-JCX to model respectively obtain environmental data table 16.5 ℃-976.3hPa-52% by Internet Server to internet.
Described Transfer Standards source comprises that model is the one-chip computer of HD64F2138VFA10, the DA converter that model is DA9238, the pneumatic flowrate controller that model is BAO-DE-8626, the peristaltic pump that model is ISM834, the standard transducer that model is BZ-YL-JCX.By normal data table PVC standard 10in V standard 10group output voltage data are converted to output dc voltage value by one-chip computer to DA converter, drive peristaltic pump to be input to standard transducer gas circuit input end to pneumatic flowrate controller, and standard transducer obtains air pressure P transfer Standards source 10data have V one to one simultaneously transmit standard source 10and C transfer Standards source coefficient 10data, make Transfer Standards source data table PVC transfer Standards source 10.Transfer Standards source data table PVC transfer Standards source 10there is P transfer Standards source 10, V transfer Standards source 10, C transfer Standards source coefficient 10three groups of tables of data, meet P transfer Standards source 10=V transfer Standards source 10* C transfer Standards source coefficient 10, P wherein transfer Standards source 1010 atmospheric pressure values of tables of data output, V transfer Standards source N10 magnitudes of voltage of tables of data output, C transfer Standards source N10 coefficient values of tables of data output, Transfer Standards source data table PVC transfer Standards source 10by one-chip computer to Internet Server.
The present invention compared with prior art has following significant advantage:
1) according to real time environment standard source, generate PVC tables of data, by internet, pressure magnitude transmission is carried out in Transfer Standards source.
2) pressure magnitude transmittance process has saved and will be equipped with peripherals such as using nitrogen cylinder, vacuum pump, high-precision pressure controller.
3) the various expenses of standard pressure generator being delivered to high one-level measurement unit metering have been saved.
4) method is simple, with low cost, efficiency is higher, has larger economic benefit and social benefit.
The course of work: real time environment measuring system is passed to respectively environmental data table module by real-time temperature value T, atmospheric pressure value P, humidity value R value, obtains real time environment tables of data T-P-R real time environment.Environmental parameter module by Internet Server to internet transmission to normal pressure source side is inquired about, T-P-R after inquiry real time environmentif standard environment parameter is directly extracted the normal data table PVC under standard environment parameter from PVC data table stores device standard Ndata.If not standard environment parameter starts standard pressure generator and generates (generative process of Chinese granted patent CN201020189756.2 " a kind of device of converting pressure calibration data into data tables " by name) at real-time T-P-R real time environmentnormal data table PVC under environment standard N, by real-time T-P-R real time environmentthe normal data table PVC of environment standard Nstore in PVC data table stores device, and to internet, carry out pressure magnitude transmission by normal data table output module, pressure magnitude transmission has two kinds of modes: 1, normal data table PVC standard Nby internet, Transfer Standards pressure source is carried out to pressure magnitude transmission, by normal data table PVC standard Ndata by internet to Transfer Standards source, normal data table PVC standard Nin V standard Ngroup output voltage data, are converted to output dc voltage value by one-chip computer to DA converter, drive peristaltic pump to be input to standard transducer gas circuit input end to pneumatic flowrate controller, and standard transducer obtains air pressure P transfer Standards source Ndata have V one to one simultaneously transfer Standards source Nand C transfer Standards source coefficient Ndata, make Transfer Standards source data table PVC transfer Standards source Nto one-chip computer by LAN (Local Area Network) to pressure acquisition industrial computer.Normal data table PVC standard Nby LAN (Local Area Network) to pressure acquisition industrial computer.In pressure acquisition industrial computer according to the vertification regulation in the metering Transfer Standards source of national regulation, with normal data table PVC standard Ndata mutual transmission is passed standard source tables of data PVC transfer Standards source Ndata are carried out precision verification, obtain accuracy class and the error in Transfer Standards source; 2, the pressure magnitude transmission of Transfer Standards source and pressure acquisition system: the air pressure output P in Transfer Standards source transfer Standards source Nby gas circuit to 1 of pressure acquisition system ... the input end of the parallel gas circuit of L road pressure transducer, pressure transducer obtains N air pressure P calibrating sensors Ndata have N V one to one simultaneously calibrating sensors Nwith N C calibrating sensors system number Ndata, make 1 ... L, L road pressure sensor data table PVC calibrating sensors N, to pressure acquisition industrial computer.Transfer Standards source data table PVC transfer Standards source Nby LAN (Local Area Network) to pressure acquisition industrial computer.According to the manometric measurement verification regulations of national digital, with Transfer Standards source data table PVC transfer Standards source Ndata are respectively to L pressure sensor data table PVC calibration sensor Ncarry out precision verification, obtain respectively pressure acquisition system L road pressure sensor data accuracy class and error.

Claims (4)

1. the device that carries out pressure magnitude transmission by internet under a real time environment, comprise standard pressure generator, normal data table storer, normal data table output module, environmental parameter module, Internet Server, Transfer Standards source, pressure acquisition system, pressure acquisition industrial computer and real time environment measuring system, it is characterized in that: real time environment measuring system is passed to environmental data table module by real-time temperature value T, atmospheric pressure value P and humidity value R by Internet Server, obtains environmental data table T-P-R real time environment, standard pressure generator generates T-P-R real time environmentunder normal data table PVC standard N, N stable air pressure P of standard pressure generator output standard N, simultaneously to there being N magnitude of voltage V standard Nwith N calibration factor value C standard N, P standard N=V standard N* C standard N, by P standard N, V standard N, C standard Ncorresponding one by one, make normal data table PVC calibration N; By PVC standard Nstore in normal data table storer, and carry out pressure magnitude transmission by normal data table output module and Internet Server; Described pressure magnitude transfer mode is: pressure acquisition system is formed and in the pressure transducer of ,Mei road, stored pressure sensor data table PVC by L road pressure transducer sensor N, each PVC sensor Ncomprise N input air pressure P sensor N, a N voltage V sensor N, a N pressure coefficient C sensor N, P sensor N=V sensor N* C sensor N, the air pressure output P in Transfer Standards source transfer Standards source Nl road pressure transducer by gas circuit to pressure acquisition system, pressure transducer obtains N air pressure P calibrating sensors N, have N V one to one simultaneously calibration sensor Nwith N C calibrating sensors coefficient Ndata, make L pressure sensor data table PVC calibrating sensors Nto pressure acquisition industrial computer, PVC transfer Standards source Nby LAN (Local Area Network), to pressure acquisition industrial computer, use PVC transfer Standards source NpVC to L road pressure transducer respectively calibrating sensors Ndata are carried out precision verification, obtain accuracy class and the error of pressure acquisition system L road pressure transducer; Described L is greater than 16 random natural number, and N is greater than 2 random natural number.
2. the device that carries out pressure magnitude transmission by internet under real time environment according to claim 1, is characterized in that described pressure magnitude transfer mode is: PVC standard Nby Internet Server, transfer to Transfer Standards source, PVC standard Nin V standard Nby one-chip computer, transfer to DA converter, be converted to DC voltage, control pneumatic flowrate controller and drive peristaltic pump, output to standard transducer gas circuit input end, standard transducer obtains N atmospheric pressure value P transfer Standards source N, simultaneously to there being N magnitude of voltage V transfer Standards source Nwith N coefficient value C transfer Standards source N, P transfer Standards source N=V transfer Standards source N* C transfer Standards source N, respective production becomes Transfer Standards source data table PVC one by one transfer Standards source N, transfer to one-chip computer, PVC transfer Standards source Nby LAN (Local Area Network), transfer to pressure acquisition industrial computer, PVC standard Nalso by LAN (Local Area Network), transfer to pressure acquisition industrial computer, in pressure acquisition industrial computer, use PVC standard Ndata are to PVC transfer Standards source Ndata are carried out precision verification, obtain accuracy class and the error in Transfer Standards source.
3. the device that carries out pressure magnitude transmission by internet under real time environment according to claim 1, it is characterized in that: described real time environment measuring system comprises temperature sensor, barometric pressure sensor, humidity sensor and environmental data table module, measure in real time temperature value T, atmospheric pressure value P and the humidity value R of Transfer Standards source and pressure acquisition system environment of living in, transfer to respectively to environmental data table module, obtain environmental data table T-P-R real time environment.
4. the device that carries out pressure magnitude transmission by internet under real time environment according to claim 1, is characterized in that: described Transfer Standards source comprises one-chip computer, DA converter, pneumatic flowrate controller, peristaltic pump and standard transducer, PVC standard Nin V standard Nby one-chip computer, transfer to DA converter, be converted to DC voltage, control pneumatic flowrate controller and drive peristaltic pump, output pressure is to standard transducer gas circuit input end, and standard transducer obtains N air pressure P transfer Standards source Ndata have N voltage V one to one simultaneously transfer Standards source Nwith N coefficient C transfer Standards source Ndata, make Transfer Standards source data table PVC transfer Standards source N, PVC transfer Standards source Nby one-chip computer, transfer to Internet Server.
CN201210171176.4A 2012-05-29 2012-05-29 Device for transferring pressure quantity value through internet in real-time environment Expired - Fee Related CN102706511B (en)

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