CN109855794A - A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information - Google Patents
A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information Download PDFInfo
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- CN109855794A CN109855794A CN201811499809.8A CN201811499809A CN109855794A CN 109855794 A CN109855794 A CN 109855794A CN 201811499809 A CN201811499809 A CN 201811499809A CN 109855794 A CN109855794 A CN 109855794A
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Abstract
The present invention relates to a kind of pressure in-line calibration devices based on the fusion of multi-communication protocol information comprising standard pressure transducer, portable calibrating unit, automatic gauge component and environmental sensor；Standard pressure transducer is connected with working interface corresponding in tested pressure gauge pipeline, and standard pressure transducer output signal is acquired by serial ports/analog signals by portable calibrating unit, realizes the calibrating of the error of indication, indicating value repeatability；Automatic gauge component is connect with portable calibrating unit, and the property working properly of verifying functions of the equipments is controlled by portable calibrating unit, failure is encountered in process of self-test and is able to carry out warning note；Environmental sensor is used to measure the live temperature and humidity of calibrating, and measurement data is real-time transmitted in portable calibrating unit.The present invention can improve the automatization level of measurement verification and the reliability of metric results, and table in-line calibration is not torn in realization open, embody performance indicator of the tested pressure gauge at the scene under working environment.
Description
Technical field
The present invention relates to pressure measurement technical fields, specifically about a kind of pressure based on the fusion of multi-communication protocol information
In-line calibration device.
Background technique
With the extensive use of computer networking technology and comprehensive automated test technology (ATE), pressure measurement is just towards net
Network, generalization, synthesization, motorization direction develop, in the case where measuring instrument degree is higher and higher, to on-line metering
Demand will be more more and more intense.The metering method of traditional fixation station obviously can not adapt to this expection, it is therefore desirable to energetically
Develop on-line metering calibrating installation, realize fusion test, control, processing and communicates in the automatic gauge function of one.
In pressure measurement calibrating, traditional method is to remove pressure gauge, pressure sensor to be sent to related metrological service
It is examined and determine, but in the demolishing process of pressure gauge, internal duct and connector may be caused to damage, while after calibrating
Leakage hidden danger may be brought when installation；Pressure gauge, pressure sensor re-testing periods are shorter, and calibrating number is excessive, Yi Ji
In actual metered work, there is also great uncertainties, will cause measurement verification result inaccuracy；Pressure sensor is the same as acquisition
System (digital display meter) is measured as a whole, and it is more to be related to communication interface, including RS422 bus, CAN bus, PROFINET
Bus etc..
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of pressure based on the fusion of multi-communication protocol information to examine online
Determine device, it is suitable for the measurement verifications of all kinds of pressure gauges, pressure sensor, improve the automatization level and metering of measurement verification
As a result table in-line calibration is not torn in reliability, realization open, embodies performance indicator of the tested pressure gauge at the scene under working environment.
To achieve the above object, the present invention takes following technical scheme: a kind of pressure based on the fusion of multi-communication protocol information
Power in-line calibration device, it is characterised in that: including standard pressure transducer, portable calibrating unit, automatic gauge component and
Environmental sensor；The standard pressure transducer is connected with working interface corresponding in tested pressure gauge pipeline, the standard
Pressure sensor output signal is acquired by serial ports/analog signals by the portable calibrating unit, realizes that indicating value is missed
The calibrating of difference, indicating value repeatability；The automatic gauge component is connect with the portable calibrating unit, by the portable inspection
The property working properly of functions of the equipments is verified in the control of order member, is encountered failure in process of self-test and is able to carry out warning note；The ring
Border sensor is used to measure the live temperature and humidity of calibrating, and measurement data is real-time transmitted in the portable calibrating unit.
Further, the standard pressure transducer can cover tested pressure gauge, the range of pressure sensor and accuracy
Grade is able to maintain stable precision in temperature compensation range；Different selections according to checked object and pressure medium are corresponding
Standard pressure transducer.
Further, the portable calibrating unit includes controller module, data collecting card module, power module, serial ports
Card module, CAN communication card module, PROFINET communication module and rear panel module slot；Modules pass through PXI bus and are arranged
In the rear panel module slot.
Further, system architecture of the controller module based on Embedded computer system, built-in verification process control
Program examines and determine equipment according to pressure gauge, pressure sensor own characteristic, realizes the automation control and phase of verification process
Answer data acquisition, intelligent data processing, communication；The data collecting card module is straight for exporting to standard pressure transducer
Galvanic electricity pressure, electric current measure；The power module is that environmental sensor and standard pressure transducer are powered；The serial ports card mold
Block supports serial port protocol, for connecting the environmental sensor, tested equipment and standard pressure transducer, realizes to serial ports class pressure
The calibrating of the force snesor error of indication, repeatability；The CAN communication card module realizes that pressure sensor is obtained by CAN communication
Pressure sensor data；The PROFINET communication module realizes that pressure sensor is communicated by PROFINET and obtains pressure sensing
Device data.
Further, the portable calibrating unit uses portable design.
Further, the automatic gauge component includes selftest module, multi-communication protocol information fusion model and comprehensive inspection
Cover half block；The selftest module and multi-communication protocol information fusion model are by the controller module in the portable calibrating unit
It is controlled；The selftest module is used to verify the property working properly of functions of the equipments, encounters failure in process of self-test and is able to carry out
Warning note；The multi-communication protocol information fusion model is realized various protocols pressure sensor multi input data acquisition and is divided
Analysis；The comprehensive assay module calls multi-communication protocol information fusion model, is numbered according to recalls information product process, and control is held
The corresponding operation of the row number, calls corresponding parameter, realizes that the calculating to measurement verification data is analyzed, and call result determines
Whether export as a result, until completing measurement verification.
Further, the various protocols are RS-422 agreement, PROFINET agreement and CAN protocol.
Further, in the multi-communication protocol information fusion model, the pressure gauge of not communication interface is used manual
The mode of input forms complete recognition rule and strategy to the various kinds of sensors of same communication interface, covers a large amount of reusables
Verifying process flow information and data processing algorithm.
Further, the environmental sensor includes temperature sensor and humidity sensor.
The invention adopts the above technical scheme, which has the following advantages: the present invention using multi-information merging technology and
Method towards functional interface constructs a kind of pressure in-line calibration device based on the fusion of multi-communication protocol information, the device energy
It is enough to provide general calibrating channel to all kinds of pressure sensors, communication interface standard cover RS-422 agreement, PROFINET agreement,
The pressure sensors such as CAN protocol, same interface sensor are encapsulated as the particular bin with intellectual property, realize pressure data
Automatic gauge test, and the defect that previous calibrating efficiency is low, scalability is poor is efficiently solved, good, the carrying side with stability
Just, it is not required to the advantages such as field stripping.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of pressure in-line calibration device based on the fusion of multi-communication protocol information, packet
Include standard pressure transducer, portable calibrating unit, automatic gauge component and environmental sensor.Standard pressure transducer and quilt
It examines corresponding working interface connection, standard pressure transducer output signal in pressure gauge pipeline and passes through serial ports/analog signals
It is acquired by portable calibrating unit, realizes the calibrating of the error of indication, indicating value repeatability；Automatic gauge component with it is portable
Unit connection is examined and determine, the property working properly of verifying functions of the equipments is controlled by portable calibrating unit, encounters failure in process of self-test
It is able to carry out warning note；Environmental sensor is used to measure the live temperature and humidity of calibrating, and measurement data is real-time transmitted to just
It takes in formula calibrating unit.Wherein, standard pressure transducer and environmental sensor are powered by portable calibrating unit.
In a preferred embodiment, standard of the standard pressure transducer as each pressure gauge of calibrating, pressure sensor,
It being required according to traceability, standard pressure transducer can cover the range and class of accuracy of tested pressure gauge, pressure sensor,
Stable precision is able to maintain in temperature compensation range；Corresponding standard is selected according to the difference of checked object and pressure medium
Pressure sensor.
In a preferred embodiment, portable calibrating unit includes controller module, data collecting card module, power supply
Module, serial ports card module, CAN communication card module, PROFINET communication module and rear panel module slot；Modules pass through
PXI bus is arranged in rear panel module slot.Wherein:
System architecture of the controller module based on Embedded computer system, built-in verification process controls program, according to pressure
Power table, pressure sensor own characteristic examine and determine equipment, realize verification process automation control and corresponding data acquisition,
The functions such as intelligent data processing, communication；
Data collecting card module is for measuring DC voltage, the electric current that standard pressure transducer exports；
Power module is that environmental sensor and standard pressure transducer are powered；
Serial ports card module supports three kinds of common serial port protocol RS232, RS422 and RS485, senses for JA(junction ambient)
Device, tested equipment and standard pressure transducer, realize the calibrating to the serial ports class pressure sensor error of indication, repeatability；
CAN communication card module realizes that pressure sensor obtains pressure sensor data by CAN communication；
PROFINET communication module realizes that pressure sensor is communicated by PROFINET and obtains pressure sensor data.
In above-described embodiment, portable calibrating unit uses portable design, convenient for carrying out gage work to scene.
In a preferred embodiment, automatic gauge component includes selftest module, multi-communication protocol information fusion mould
Type and comprehensive assay module；Selftest module and multi-communication protocol information fusion model are by the controller mould in portable calibrating unit
Block is controlled.Wherein:
Selftest module is used to verify the property working properly of functions of the equipments, encounters failure in process of self-test and is able to carry out alarm and mentions
Show；
Multi-communication protocol information fusion model realizes the pressure sensors such as RS-422 agreement, PROFINET agreement, CAN protocol
Multi input data acquisition and analysis use the mode being manually entered for the pressure gauge of not communication interface, connect to same communication
The various kinds of sensors of mouth forms complete recognition rule and strategy, covers a large amount of reusable verifying process flow information and data processing
Algorithm has relatively independent, reusable feature；
Recognition rule and strategy are as follows: multi-communication protocol information fusion model uses dynamic and static identification layer structure, knows in dynamic
Other layer is allocated standard pressure transducer by unsupervised self study mode, by self-inspection data and characteristic identification pair
The parameters such as class of accuracy, the range answered are realized to the self-organizing of sensor states multiple features mode, adaptive；Know in static state
The data acquisition of other layer checked object use supervised learning method, state procedure information, feature mode, calibrating point distribution with
And verification result calculating etc. combines, and forms complete recognition rule and strategy.
Comprehensive assay module calls multi-communication protocol information fusion model, is numbered according to recalls information product process, control
The corresponding operation of the number is executed, corresponding parameter is called, realizes that the calculating to measurement verification data is analyzed, and call result is sentenced
It is fixed whether to export as a result, until completing measurement verification.
In a preferred embodiment, environmental sensor includes temperature sensor and humidity sensor.Environmental sensor
For being measured to the live temperature and humidity of calibrating.
Embodiment:
As shown in Figure 1, a kind of pressure in-line calibration apparatus structure based on the fusion of multi-communication protocol information of the present embodiment
Figure, including standard pressure transducer, portable calibrating unit, automatic gauge component and environmental sensor.
Standard pressure transducer is according to tested pressure gauge index and traceability requirement, the i.e. maximum allowable mistake of calibrating installation
Difference carries out the type selecting of standard pressure transducer no more than the 1/4 of the tested equipment limits of error, output signal by serial ports/
Analog signals are acquired by portable calibrating unit.
Portable calibrating unit includes controller module, data collecting card module, power module, serial ports card module, CAN logical
Interrogate card module, PROFINET communication module and rear panel module slot.Portable calibrating unit is total using data communication technology and PXI
Line technology has 6 PXI slots.Controller selects general COMe module to reduce as far as possible on the premise of ensuring performance
Power consumption, built-in validation program realize the on-line automaticization metrology and measurement of pressure data；Power module is Temperature Humidity Sensor and mark
Quasi- pressure sensor power supply；Data collecting card module realizes the measurement function of pressure sensor output DC voltage, electric current；Serial ports
Card module, CAN communication card module, PROFINET communication module realize that different communication interface pressure sensor expression values are (defeated respectively
Be worth out) acquisition, transmission, realize metering process from hand/semi to full-automatic transformation, reduce manual operation wind
Danger.
Automatic gauge component includes selftest module, multi-communication protocol information fusion model and comprehensive assay module.Self-test
Module is the property working properly for verifying functions of the equipments, including serial ports self-test, Temperature Humidity Sensor self-test, data collecting card are certainly
The self-tests items such as inspection, CAN communication card module encounter failure in process of self-test and are able to carry out warning note, it is ensured that each measurement of system
Channels operation is normal, and performance indicator is met the requirements.Multi-communication protocol information fusion model realizes RS-422 agreement, PROFINET association
The pressure sensors multi input data acquisition and analysis such as view, CAN protocol, form completely the various kinds of sensors of same communication interface
Recognition rule and strategy, cover a large amount of reusable verifying process flow information and data processing algorithm；Comprehensive assay module is called
Multi-communication protocol information fusion model is numbered by built-in algorithm product process, realizes that the calculating to measurement verification data is analyzed.
Verifying process flow has continuous checking functions, can interrupt process in the case where not completing verification task, have automatic reinspection function, i.e., a certain inspection
It carries out examining and determine for second automatically when pinpointing unqualified, most 3 times.
Environmental sensor is used to measure the live temperature and humidity of calibrating, temperature and humidity integrated transducer is selected, by just
Formula calibrating unit power supply is taken, measurement data is transferred to portable calibrating unit using serial port.
When calibrating, corresponding standard pressure transducer is selected according to the difference of checked object and pressure medium, by standard pressure
Force snesor is connected with corresponding metering interface in tested pressure gauge pipeline.Standard pressure transducer and portable calibrating unit
Data collecting card module or serial ports card module be connected, tested pressure gauge is adjusted by the related valve in operating line
The pressure of medium in pipeline, pressure is ascending to be adjusted, after pressure stabilisation, and the output signal of standard pressure transducer is logical
It crosses serial ports/analog signals to be acquired by portable calibrating unit, automatic gauge component can prompt operating procedure, and guidance makes
Carry out calibration operation with personnel.The signal of pressure sensor is carried out by RS-422, PROFINET or CAN bus and tested equipment
The automatic calibrating for obtaining pressure sensor signal, realizing to the tested pressure gauge error of indication, repeatability of communication.
The various embodiments described above are merely to illustrate the present invention, and structure and size, setting position and the shape of each component are all can be with
It is varied, based on the technical solution of the present invention, the improvement and wait that all principles according to the present invention carry out individual part
With transformation, should not exclude except protection scope of the present invention.
Claims (9)
1. a kind of pressure in-line calibration device based on the fusion of multi-communication protocol information, it is characterised in that: passed including normal pressure
Sensor, portable calibrating unit, automatic gauge component and environmental sensor；The standard pressure transducer and tested Instrument for Pressure
Corresponding working interface connection in table pipeline, the standard pressure transducer output signal is by serial ports/analog signals by institute
It states portable calibrating unit to be acquired, realizes the calibrating of the error of indication, indicating value repeatability；The automatic gauge component and institute
Portable calibrating unit connection is stated, by the property working properly of the portable calibrating unit control verifying functions of the equipments, self-test
Failure is encountered in journey is able to carry out warning note；The environmental sensor is used to measure the live temperature and humidity of calibrating, measures
In real-time data transmission to the portable calibrating unit.
2. device as described in claim 1, it is characterised in that: the standard pressure transducer can cover tested pressure gauge, pressure
The range and class of accuracy of force snesor, are able to maintain stable precision in temperature compensation range；According to checked object and
The difference of pressure medium selects corresponding standard pressure transducer.
3. device as described in claim 1, it is characterised in that: the portable calibrating unit includes that controller module, data are adopted
Collect card module, power module, serial ports card module, CAN communication card module, PROFINET communication module and rear panel module slot；Respectively
A module passes through PXI bus and is arranged in the rear panel module slot.
4. device as claimed in claim 3, it is characterised in that: system of the controller module based on Embedded computer system
Framework, built-in verification process control program, are examined and determine according to pressure gauge, pressure sensor own characteristic equipment, realize inspection
Determine automation control and the corresponding data acquisition, intelligent data processing, communication of process；
The data collecting card module is for measuring DC voltage, the electric current that standard pressure transducer exports；
The power module is that environmental sensor and standard pressure transducer are powered；
The serial ports card module supports serial port protocol, for connecting the environmental sensor, tested equipment and normal pressure sensing
Device realizes the calibrating to the serial ports class pressure sensor error of indication, repeatability；
The CAN communication card module realizes that pressure sensor obtains pressure sensor data by CAN communication；
The PROFINET communication module realizes that pressure sensor is communicated by PROFINET and obtains pressure sensor data.
5. device as described in claim 3 or 4, it is characterised in that: the portable calibrating unit uses portable design.
6. device as described in claim 1, it is characterised in that: the automatic gauge component includes selftest module, more communication protocols
Discuss information fusion model and comprehensive assay module；The selftest module and multi-communication protocol information fusion model are by described portable
Controller module in calibrating unit is controlled；
The selftest module is used to verify the property working properly of functions of the equipments, encounters failure in process of self-test and is able to carry out alarm and mentions
Show；
The multi-communication protocol information fusion model realizes various protocols pressure sensor multi input data acquisition and analysis；
The comprehensive assay module calls multi-communication protocol information fusion model, is numbered according to recalls information product process, control
The corresponding operation of the number is executed, corresponding parameter is called, realizes that the calculating to measurement verification data is analyzed, and call result is sentenced
It is fixed whether to export as a result, until completing measurement verification.
7. device as claimed in claim 6, it is characterised in that: the various protocols be RS-422 agreement, PROFINET agreement and
CAN protocol.
8. device as claimed in claim 6, it is characterised in that: in the multi-communication protocol information fusion model, for not leading to
The pressure gauge of letter interface forms complete recognition rule to the various kinds of sensors of same communication interface using the mode being manually entered
And strategy, cover a large amount of reusable verifying process flow information and data processing algorithm.
9. device as described in claim 1, it is characterised in that: the environmental sensor includes temperature sensor and humidity sensor
Device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811499809.8A CN109855794A (en) | 2018-12-09 | 2018-12-09 | A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information |
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| CN201811499809.8A CN109855794A (en) | 2018-12-09 | 2018-12-09 | A kind of pressure in-line calibration device based on the fusion of multi-communication protocol information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113848015A (en) * | 2021-09-27 | 2021-12-28 | 山东理工大学 | ZigBee-based pressure sensor online calibration system |
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Application publication date: 20190607 |