CN109253837A - The processing method of pressure calibration device and pressure gauge calibration information - Google Patents
The processing method of pressure calibration device and pressure gauge calibration information Download PDFInfo
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- CN109253837A CN109253837A CN201710574039.8A CN201710574039A CN109253837A CN 109253837 A CN109253837 A CN 109253837A CN 201710574039 A CN201710574039 A CN 201710574039A CN 109253837 A CN109253837 A CN 109253837A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
- G01L27/005—Apparatus for calibrating pressure sensors
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Abstract
The present invention provides the processing method of a kind of pressure calibration device and pressure gauge calibration information, belong to pressure tool metering instrument calibration field, the device includes pressure calibration unit, main control unit and communication module, main control unit is electrically connected with pressure calibration unit and communication module respectively, pressure calibration unit is external by school pressure gauge, and communication module passes through network insertion remote data base；The device is additionally provided with the photomoduel for being electrically connected to main control unit.The present invention can make communication module and remote data base establish connection, can be realized as in industry spot by the processing of correction power calibrating indicating instrument information, suitable for being calibrated to industry spot by school pressure gauge.
Description
Technical field
The invention belongs to pressure tool metering instruments to calibrate field, and being related to one kind can be with data-base remote real time communication
The processing method of pressure calibration device and pressure gauge calibration information.
Background technique
Pressure gauge used in the fields such as industrial production, pressure measurement needs to carry out periodic check, to guarantee pressure
Instrument detects the accuracy of pressure, guarantees that press device uses in safe range.For a large amount of existing pressure of industry spot
Instrument needs to implement to calibrate to pressure gauge using site pressure calibrating installation.And for different types of pressure gauge, it need to adopt
With different calibration programs.
The more advanced calibration method of existing pressure gauge is usually that calibrating installation is carried to laboratory and incited somebody to action first
It is connected on the computer in laboratory, downloads information needed from database by computer, information needed includes by correction
Calibration program, historical calibration data and the other attributes of power instrument.Or operator can record in use for laboratory paper pen
Lower information needed is simultaneously carried to industry spot；It reaches by after the industry spot where the pressure gauge of school, to by school pressure gauge
Calibration operation is carried out, the calibration data that will acquire and other data are stored into calibrating installation or are recorded on paper, return
Laboratory is uploaded in database by computer.
Above method needs are hurried back and forth back and forth between laboratory and industry spot, cannot be in industry spot to by correction power
Instrument carries out calibration and uploads data in real time.Method using paper pen record data can also be involved in the problems, such as data reliability.
In addition, occur that pressure calibration device is connected to the solution of database by telecommunication medias such as mobile phones at present,
Network is respectively configured on mobile phone and pressure calibration device in program needs, is attached setting, often comparatively laborious, complicated,
Some industry spots, general technical staff are unable to complete operation.
It therefore, can it is necessory to provide the processing method of a kind of pressure calibration device and pressure gauge calibration information
Connect with database real time communication, industry spot realize by school pressure gauge historical calibration data and calibration program it is real-time under
The real-time upload of load and this calibration data.
Summary of the invention
The purpose of the present invention is to solve the above problem, provide it is a kind of it is easy to operate, easy to use, can be with long-range number
According to the pressure calibration device of library real time communication, the device can industry spot to by school pressure gauge carry out calibration and with it is remote
Journey database carries out real-time information interaction.
Above-mentioned purpose of the invention is realized by following solution:
A kind of pressure calibration device is used to be calibrated scene by school pressure gauge (100), including pressure calibration unit
(1) and with pressure calibration unit (1) main control unit (2) and communication module (3) being electrically connected, pressure calibration unit (1) are external
By school pressure gauge (100), the communication module (3) passes through network (200) access remote data base (300).
In above-mentioned pressure calibration device, the communication module (3) is the signal procedure being integrated in main control unit (2), main
Control unit (2) is provided with network interface, and communication module (3) accesses remote data base by network (200) via the network interface
(300)。
In above-mentioned pressure calibration device, the communication module (3) is the hardware cell with connection plug and network interface,
Communication module (3) is connected through plug and is mechanically connected and is electrically connected with main control unit (2), accesses network by its network interface
(200) and remote data base (300) are connected.
Above-mentioned pressure calibration device further includes a photomoduel for being electrically connected to main control unit (2), the photomoduel packet
It includes camera (4), be arranged in the camera (5) on camera (4) and the image recognition program being implanted in main control unit (2), institute
Camera (5) face is stated by the front appearance of school pressure gauge (100), captured photo is transferred to master control via camera (4)
Unit (2), image recognition is carried out to captured photo by described image recognizer to obtain by correction power mter model and
By school pressure gauge essential information.
Above-mentioned pressure calibration device further includes the power supply (9) and/or display screen (10) for being electrically connected to main control unit (2), institute
Stating power supply (9) is replaceable battery group or rechargeable battery pack or external power supply；Display screen (10) is that touch screen or LED are shown
Device.
In above-mentioned pressure calibration device, the pressure calibration unit (1) includes being occurred by the pressure that gas piping is connected to
Unit (13), pressure control module (11), pressure measuring module (12) and pressure interface module (14), pressure measuring module (12)
Main control unit (2) are electrically connected respectively to pressure control module (11)；Pressure interface unit (14) is external by school pressure gauge
(100), pressure measuring module (12) provides pressure criteria data, and the high pressure gas that pressure generating unit (13) generates passes through gas
Pipeline enters pressure control module (11), and reaches via pressure interface module (14) by school pressure gauge (100).
Above-mentioned pressure calibration device further includes temperature correction unit (6) and the electric signal school for being electrically connected to main control unit (2)
Quasi- unit, the electric signal calibration unit include correcting current unit (7) and/or voltage calibration unit (8).
The present invention also provides a kind of processing method of pressure gauge calibration information, this method is filled using above-mentioned pressure calibration
It sets and is operated, realized in industry spot by the real-time information interaction of school pressure gauge and remote data base, comprising the following steps:
Acquisition of information: it will be connect by school pressure gauge (100) with pressure calibration unit (1), communication module (3) is linked into net
In network (200), and connection is established with database (300), is obtained in real time in database (300) and by school pressure gauge (100)
The corresponding calibration information of model, including by school pressure gauge essential information, historical calibration data and calibration program；
Calibration and data transmission: main control unit (2) is generated according to obtained calibration program by the sheet of school pressure gauge (100)
This calibration data is uploaded to database (300) by communication module (3) by secondary calibration data, main control unit (2) in real time.
It, will be by school pressure gauge (100) in the information acquiring step of the processing method of above-mentioned pressure gauge calibration information
Type information is passed in the main control unit (2) of the pressure calibration device, and main control unit (2) will be by school pressure gauge (100)
Type information is sent to communication module (3).
In the processing method of above-mentioned pressure gauge calibration information, the type information by school pressure gauge (100) is incoming
Mode is to be inputted by the display screen (10) mentioned in claim 5 or be loaded by configuration file, or passed through in claim 4
The camera (4) mentioned takes pictures the image recognition program in image and main control unit (2) to obtaining after the image recognition of taking pictures.
In the processing method of above-mentioned pressure gauge calibration information, the historical calibration data includes this by school pressure gauge institute
Have the pressure indicating value of pressure calibration point, the pressure indicating value of the pressure error of indication or all pressure calibrations point, the pressure error of indication,
Current value, the electric current error of indication；The calibration program includes the automatic calibration procedure for implementing calibration operation；It is described by school Instrument for Pressure
Table essential information includes by the range of school pressure gauge, precision, number and manufactory's information.
The present invention has a characteristic that communication module is integrated into device by apparatus of the present invention due to taking the above design
Portion can establish connection with remote data base by being simply provided, and eliminate intermediate communication medium and cumbersome network connects
It connects setting up procedure, can be realized as in industry spot by the processing of correction power calibrating indicating instrument information, i.e., it is real-time from remote data base
The calibration data of generation is simultaneously uploaded to remote data base by downloading historical calibration information in real time；By being carried out with historical calibration data
Comparison, can evaluate steadily in the long term pressure gauge；Believed substantially using photomoduel by model of school pressure gauge etc.
Breath carries out automatic identification, eliminates and presets step, improves operating efficiency.
Detailed description of the invention
Fig. 1 is the structural block diagram of pressure calibration device of the present invention；
Fig. 2 is the structural block diagram of the embodiment one of pressure calibration device of the present invention；
Fig. 3 is the structural block diagram of the embodiment two of pressure calibration device of the present invention.
Major Symbol:
1: pressure calibration unit；
11: pressure control module, 111: intake valve, 112: buffer, 113: minute-pressure regulating mechanism, 114: pressure controlling drives
Dynamic circuit；
12: pressure measuring module, 121: valve transfer circuit, 122,123: solenoid valve, 124,125: modular pressure, 126:
Compression fittings, 127: standard scale；
13: pressure generation module, 131: motor, 132: the pump housing；
14: pressure interface module, 141: normal pressure input terminal, 142: compression fittings, 144: exhaust valve, 145: noise reduction
Device；
2: main control unit, 21: control chip, 21-1: main control board；22: modular pressure switching element, 22-1: interface
Circuit board；23: Interface for digital communication, 24: display interface device, 25: keyboard interface, 27: keyboard；
29: electrical signal detection circuit；
3: communication module；
4: camera；5: camera；
6: temperature correction unit；7: correcting current unit；8: voltage calibration unit；87: external electrical measurement interface；
9: power supply；10: display screen；
100: by school pressure gauge；200: network；300: database.
Specific embodiment
Processing below in conjunction with the drawings and specific embodiments, to pressure calibration device of the present invention and pressure gauge calibration information
Method is described in detail.
Device
Existing pressure calibration device is general to be detected or calibrated behaviour using pressure gauge of the offline mode to scene
Make, the data information of acquisition cannot upload to database in real time, although upload to database by telecommunication medias such as mobile phones,
Often network configuration, connection setting are comparatively laborious, and general operation personnel are unable to complete operation；Pressure calibration provided by the present invention
Device uses modularized design, is integrated with telecommunications functions, and the connection, configuration with database are simple, can be realized in industry
Field calibration and download by school pressure gauge by school pressure gauge essential information (including by the range of school pressure gauge, precision,
Number and the information such as manufactory), historical calibration data, calibration program and upload the calibration data generated in real time, be more convenient, be fast
Prompt and intelligence.
As shown in Figure 1, pressure calibration device of the invention includes pressure calibration unit 1, main control unit 2 and communication module 3,
Main control unit 2 is electrically connected with pressure calibration unit 1 and communication module 3 respectively, and pressure calibration unit 1 is external by school pressure gauge
100, communication module 3 is connected to database 300 by network 200, and main control unit 2 is sent out to pressure calibration unit 1 and communication module 3
Control command is sent to control the movement of each element in pressure calibration unit 1 and communication module 3, receives the working condition of each element
Information realizes that pressure calibration equipment safety works in an orderly manner.
Wherein, pressure calibration unit 1 includes pressure generating unit 13, the pressure control module being connected to by gas piping
11, pressure measuring module 12 and pressure interface module 14, pressure measuring module 12 and pressure control module 11 are electrically connected respectively to
Main control unit 2 (thick line indicates air circuit connection in Fig. 1, and filament indicates electrical connection).Pressure interface unit 14 is external by school Instrument for Pressure
Table 100, pressure measuring module 12 provide pressure criteria data, and the high pressure gas that pressure generating unit 13 generates passes through gas piping
It into pressure control module 11, reaches via pressure interface module 14 by school pressure gauge 100, and contrasts pressure measuring module 12
Pressure criteria data, calibration operation is carried out under the control of main control unit 2.
Pressure calibration device of the invention further includes temperature correction unit 6 and the electric signal school for being electrically connected to main control unit 2
Quasi- unit, electric signal calibration unit include correcting current unit 7 and voltage calibration unit 8, temperature correction unit 6, correcting current
Unit 7 and voltage calibration unit 8 can be external by school instrument, realize by the calibration of school instrument output electric signal.
The mainly current/voltage detecting signal unit including high accuracy and the temperature/electric signal conversion of temperature correction unit 6
Unit.Different temperatures is corresponded to by the output end of school instrument and exports corresponding current/voltage signal, which passes through electrical interface (mould
Quasi- current/voltage input interface or digital current/voltage signal input interface) access current/voltage detecting signal unit, it carries out
Measurement is compared (compared with normal temperature, current/voltage signal value) and temperature conversion, to realize the school of tested thermometric instrument
It is quasi-.
Correcting current unit 7 mainly includes the current signal detection unit of high accuracy.It is corresponding by the output end of school instrument
Different electric current show values export corresponding current signal, which passes through electrical interface (analog current input interface or digital current
Signal input interface) access current signal detection unit, it measures and compares (compared with standard current value), to realize by school
The calibration of instrument output current signal.
Voltage calibration unit 8 mainly includes the voltage signal detection unit of high accuracy, corresponds to different voltages by school instrument
Show value exports corresponding voltage signal, which passes through electrical interface (analog voltage input interface or digital voltage signal input
Interface) access voltage signal detection unit, it measures and compares (compared with standard voltage value), exported to realize by school instrument
The calibration of voltage signal.
Main control unit 2 includes main control chip and its peripheral circuit, is typically implanted corresponding control algolithm inside main control chip,
Main control unit 2 respectively with the pressure generating unit 13 of pressure calibration unit 1, pressure control module 11, pressure measuring module 12 and
Pressure interface module 14 is electrically connected, and is sent control command to each module and is controlled the movement of each module and receive each module status and believes
Breath.Main control unit 2 is also electrically connected with power supply 9 and display screen 10, and power supply 9 can be replaceable battery group or rechargeable battery pack,
It is also possible to external power supply, for other units power supply to apparatus of the present invention；Display screen 10 can show for touch screen or LED
Device shows data result and/or data and curves for setting or input service parameter.
Communication module 3 completes the data interaction between main control unit 2 and remote data base 300, has telecommunications functions.
From way of realization, one section of signal procedure being integrated in main control unit 2 can be, main control unit 2 is provided with network and connects at this time
Mouth is also possible to independent hardware module to access network 200, for example, communication module 3 has connection plug and network interface,
Connection plug with main control unit 2 for being coupled to realize the mechanical connection between communication module 3 and main control unit 2 and be electrically connected
Connect, network interface is connected in network 200, pass through network 200 access database 300, wherein network 200 be based on
The Industrial Ethernet of Internet is also possible to support other wireless networks of Internet connection, telecommunication may be implemented
Function.
Apparatus of the present invention further include a photomoduel for being electrically connected to main control unit 2, which includes camera 4, sets
It sets in the camera 5 on camera 4 and the image recognition program being implanted in main control unit 2, the camera face is by correction power
The front appearance of instrument 100, can take the data shown on the dial plate by school pressure gauge 100, type information (including
By the unique identity information (ID coding) of school pressure gauge 100) and its external appearance characteristic, captured photo is via the transmission of camera 4
To main control unit 2, the image recognition program being previously implanted in main control unit 2 carries out image recognition to captured photo, from
And obtain by correction power mter model and by school pressure gauge essential information, for example, by the range of school pressure gauge, precision, volume
Number and the information such as manufactory.
In apparatus of the present invention, communication module 3 is integrated in inside device, so that the device has telecommunications functions, is saved
Intermediate communication medium as long as the device is accessed its network supported can connect to teledata by being simply provided
Library 300, can in real time from database downloading it is pre-stored by school pressure gauge essential information (including by the amount of school pressure gauge
The information such as journey, precision, number and manufactory), by historical calibration data (including all pressure calibrations point of school pressure gauge 100
Pressure indicating value, the pressure indicating value of the pressure error of indication or all pressure calibrations point, the pressure error of indication, current value, electric current show
It is worth error etc.) and calibration program (the automatic calibration procedure including implementing calibration operation), to realize by 100 school of school pressure gauge
Quasi- data automatically generate, and calibration data is uploaded to database by network 200 in real time.
The combination of pressure calibration unit 1 and main control unit 2 constitutes normal pressure calibrating installation, and normal pressure calibration cartridge is equipped with
Different ways of realization, can realize the purpose of pressure calibration, and apparatus of the present invention will be by that by communication module 3 or will communicate mould
Block 3 and photomoduel be integrated in the pressure calibration device of standard formed it is more intelligent, using more convenient and fast pressure calibration device, under
Face describes implementation process of the invention with two embodiments, but is not limited to following implementation.
Embodiment one:
In the embodiment shown in Figure 2, pressure generating unit 13 occurs to generate gas pressure, gas by gas pressurized pump
Pressure force (forcing) pump is directly communicated with the atmosphere, and generates gas pressure by compressed air, is not necessarily to external gas cylinder.Theoretically, Ren Heneng
It can be all used in the present invention by the air pump that compressed air generates gas pressure, preferential request for utilization people is voluntarily in the present invention
The gas pressurized of exploitation pumps, i.e. high-pressure bidirectional miniature power-driven air pump (micro pressure pump), gas pressurized pump with Self-pressurizing agri,
The functional characteristic of moulding pressure height and high efficiency pressurization, and use high pressure check valve technology.Embodiment one shown in Fig. 2
In, pressure generating unit 13 includes the pump housing 132 and the motor 131 for driving the work of the pump housing 132, drive of the pump housing 132 in motor 131
Dynamic lower constantly repetition breathing process and exhaust process, gas are constantly compressed, and high pressure gas is generated, and specific structure and work are former
Reason is the description as described in this content in the patent of CN102252805B referring to the notification number of applicant.
Pressure control module 11 controls gas pressure, and air path part includes gas circuit connection (with thick lines in Fig. 2
Indicate) intake valve 111, buffer 112 and minute-pressure regulating mechanism 113, intake valve 111 be connected to 13 middle pump body of pressure generating unit
Pressure input of 132 gas export line as pressure control module 11, minute-pressure regulating mechanism 113 and pressure interface module
The connection of 114 gas circuits, buffer 112 are the figurate pressure vessel of tool, are mainly used for filtering and are entered by intake valve 111
Airflow fluctuation, stablize and storage gas pressure；Enter minute-pressure regulating mechanism 113 by the gas of buffer 112, for realizing
Pressure accurately controlling and adjusting.The control section of pressure control module 11 includes pressure controlling driving circuit 114, pressure controlling
Driving circuit 114 respectively with the exhaust valve 144 of power supply 9, intake valve 111, minute-pressure regulating mechanism 113, pressure interface module 14 with
And the main control chip 21 of main control unit 2 is electrically connected (indicating in Fig. 2 with hachure), the control function of pressure controlling driving circuit 114
Can be completed by the driving of main control chip 21 of main control unit 2, mainly the switch state of intake valve 111, exhaust valve 144 is implemented
The pressure controlling that gas is flowed into or discharged is realized in electric control, and output pressure is realized in the control passed through to minute-pressure regulating mechanism 113
Fine tuning control.In addition, pressure controlling driving circuit 114 is gone back and motor when using pressure generating unit 13 used in Fig. 2
131 electrical connections are run in order with controlling it.
Pressure interface module 14 includes exhaust valve 144 and normal pressure input terminal 141, normal pressure input terminal 141 and pressure
113 gas circuit of minute-pressure regulating mechanism of power control module 11 is connected to, and external by school pressure gauge 100 by compression fittings 142,
Exhaust valve 144 is communicated with the atmosphere by a muffler 145.
Pressure measuring module 12 includes that the pressure being connected to 141 gas circuit of normal pressure input terminal of pressure interface module 14 connects
First 126, the compression fittings and compression fittings 142 are parallel-connected on normal pressure input terminal 141, for connecting pressure criteria
Device, when pressure standard meter is standard scale 127, which is connected directly between on the compression fittings 126, and by manual
Mode replace the standard scale 126 of different ranges to calibrate to the tested pressure gauge 100 of corresponding range；And work as pressure criteria
When device is modular pressure (pressure sensor), compression fittings 126 are connected to modular pressure by multiple solenoid valves 122 or 123 respectively
124 or 125, and pass through the modular pressure 124 or 125 that a valve transfer circuit 121 switches different ranges, wherein each pressure mould
Block is communicated to compression fittings 126 by corresponding electromagnetic valve gas circuit, and each solenoid valve is electrically connected with valve transfer circuit 121.
Main control unit 2 includes control chip 21 and display interface device 24, the keyboard interface 25 for being connected to control chip 21
And data communication interface 23, it controls and is implanted into control algolithm (dedicated self-adaptive PID pressure control calculation well known to such as in chip 21
Method and voltage, electric current related algorithm), it is the brain of whole device, for issuing control instruction；Data communication interface 23 is electrically connected
It is connected to main control chip 21, when the pressure standard meter of pressure measuring module 12 uses standard scale 127, data communication interface 23 can be with
It is directly connected to the pressure value that standard scale 127 is used to receive standard scale 127, and is transmitted on main control chip 21；When pressure mark
When quasi- device is multiple modular pressures (range is different), Interface for digital communication 23 is by a modular pressure switching element 22 (as positioned
Device) by the pressure value of oriented modular pressure 124 or 125 by Interface for digital communication 23 be transmitted to control chip 21, lead to
It crosses and is compared with preset pressure value in control chip 21, pressure control algorithm carries out control amount calculating according to difference,
And the control amount of calculating is conveyed to pressure controlling driving circuit 114 again, it is realized by pressure controlling driving circuit 114 to intake valve
111, the feedback control that pressure accurately occurs is implemented in the control of exhaust valve 144 and minute-pressure regulating mechanism 113；It is logical to control chip 21
25 external connection keyboard 27 of keyboard interface is crossed, by 24 external-connection displayer 26 of display interface device, setting pressure and journey are inputted by keyboard 27
Operation data parameter is controlled, pressure control result and curve are shown by standard scale 127 or display screen 26.
The control chip 21 of main control unit 2 is also connected with an electrical signal detection circuit 29, to by school pressure gauge 100 into
While row calibration, testing calibration can also be carried out to its electric signal, implement the integrated calibration of pressure and electric signal；It can also be right
Other electric currents, voltage meter carry out electrical signal detection calibration.After accessing electrical signal detection circuit 29 by the electric signal of school instrument,
It is converted to digital signal and inputs to control chip 21 connected to it, in control chip 21, defaulted in control chip 21
Calculation formula calculate, obtain the status information of the electrical signal data of detection or the on-off of pressure switch, and pass through display screen 10
Display.At this point, electrical signal detection numerical value, can be used as the electric signal show value exported by school instrument, or as by school Instrument for Pressure
The calibration value of the output signal of table 100 exports the order of accuarcy that value of electrical signals is differed with standard value by school instrument for judging, or
Person is for judging whether export value of electrical signals by school pressure gauge 100 is consistent with specified value.Electric signal calibration data will be kept in
In the memory of control chip 21, it can be uploaded in database 300 by communication module 3.
Communication module 3 or communication module 3 and photomoduel are directly electrically connected to the control chip 21 of main control unit 2, and with
Control chip 21 directly carries out data interaction.Wherein, 3 supporting industry ethernet communication protocol of communication module, wireless network protocol,
Internet network can be accessed.
Embodiment two:
In embodiment two shown in Fig. 3, main control unit 2 includes main control board 21-1 and interface card 22-1,
In, interface card 22-1 is the circuit integration plate of the gas path component of pressure calibration unit 1, the pressure control of pressure calibration unit 1
Molding block 11, pressure control module 11, pressure interface module 14, pressure measuring module 12 are connected to interface card 22-
1, the interface card plug being mounted thereon is passed through by interface card 22-1 and is connect with main control board 21-1, master control electricity
Road plate 21-1 carries out intelligent control to gas circuit by interface card 22-1.Main control board 21-1 is circuit integration plate, thereon
Core control panel is distributed with, and (central control unit installs commercialized system controlling software and the mating algorithm of pressure checking, electrical measurement additional
Amount calculates algorithm software), memory, measuring circuit (connect external electrical measurement interface) and display screen socket, USB interface etc..
Main control board 21-1 is also connected with tension measuring circuit 71 and tension measuring circuit 81, and the two passes through a pair of of dispatch from foreign news agency
It surveys interface 87 and connects the external electrical interface by school instrument, which can be the output electrical interface of ammeter, voltmeter,
It can be by the electrical signal of school pressure gauge 100, the integrated calibration operation of pressure and electric signal may be implemented.
Method
The present invention provides a kind of processing method of pressure gauge calibration information, this method using above-mentioned pressure calibration device into
Row operation, comprising the following steps:
Acquisition of information: will be connect by school pressure gauge 100 with pressure calibration unit 1, and communication module 3 is linked into network 2,
And connection is established with database 300, it is obtained in real time in database 300 and by the corresponding letter of the type information of school pressure gauge 100
Breath, including by school pressure gauge essential information, historical calibration data and calibration program；Wherein, by the model of school pressure gauge 100
Information includes by the unique identity information of school pressure gauge 100, i.e. ID coding.
Calibration and data transmission: main control unit 2 is generated according to obtained calibration program by this school of school pressure gauge 100
This calibration data is uploaded to database 300 by communication module 3 by quasi- data, main control unit 2 in real time.
In above- mentioned information obtaining step, the master control of pressure calibration device is passed to by the type information of school pressure gauge 100
In unit 2, main control unit 2 will be sent to communication module 3 by the type information of school pressure gauge 100.Wherein, by school pressure gauge
100 type information is passed to mode and is divided into following three kinds according to the configuration difference of above-mentioned pressure calibration device:
(1) it when being not provided with photomoduel in above-mentioned pressure calibration device, is manually entered by display screen 10, i.e., by correction
The type information of power instrument 100 is manually entered by display screen 10 and is passed to main control unit 2.
(2) it when being not provided with photomoduel in above-mentioned pressure calibration device, is loaded by configuration file, i.e., configured with by school
The configuration file of the type information of pressure gauge 100 is loaded into main control unit 2, is extracted by main control unit 2 by school pressure gauge 100
Type information.
(3) when above-mentioned pressure calibration device setting photomoduel, camera 4 is taken pictures the image in image and main control unit 2
To obtaining after taken pictures image recognition, i.e., 4 pairs of the camera of photomoduel are taken pictures recognizer by school pressure gauge (100),
The image recognition program being previously implanted in main control unit (2) carries out image recognition to the photo taken, and obtains by school pressure gauge
(100) type information.
This calibration information obtained in the above method can judge this by school Instrument for Pressure compared with historical calibration information
The long-time stability of table 100.Anywhere judgement of stability can carry out, i.e., by connection database 300 to download this
Calibration data and historical calibration data, judged by comparing or statisticalling analyze by the long-time stability of school pressure gauge 100,
For example, by the methods of regression analysis, variance analysis in statistical analysis technique to by the long-time stability of school pressure gauge 100 into
Row judgement.
The calibration program that apparatus of the present invention obtain refers to the automatic calibration procedure for implementing calibration operation.Apparatus of the present invention according to
The step of calibration program of acquisition is calibrated automatically is as follows:
According to the calibration program of acquisition, i.e., automatic calibration procedure control pressure calibration module 11 generates calibrates main control unit 2
Pressure is simultaneously supplied to pressure calibration circuit, by output current signal after the reception normal pressure of school pressure gauge 100, passes through electrical interface
It is connected to correcting current unit 7, main control unit 2 controls correcting current unit 7 by automatic calibration procedure again, reads by school Instrument for Pressure
The output current value of table.
According to the different alignment requirements by school pressure gauge, different calibration points is set in calibration program (such as: high precision
Degree is by 10 calibration points of school pressure gauge, and low accuracy is by 5 calibration points of school pressure gauge), as a result, by setting calibration points
Amount, main control unit 2 implement calibration operation control, carry out point-by-point calibration operation to by school pressure gauge 100, obtain each calibration point
Calibration data.
When being not provided with photomoduel in above-mentioned pressure calibration device, historical calibration data is obtained in the acquisition of information
It is followed the steps below with calibration program needs:
It is preset, and is deposited into main control unit 2 by display screen 10 by the type information of school pressure gauge 100, it is main
Control unit 2 communication module 3 will be sent to by the type information of school pressure gauge 100, then communication module 3 via network 200 from
It is downloaded in real time in database 300 by the essential information, historical calibration data and calibration program of school pressure gauge.
It will be appreciated by those skilled in the art that these embodiments or embodiment are merely to illustrate the present invention without limiting this
Invention, the various equivalent variations and modification made to the present invention belong to the disclosure of invention.
Claims (11)
1. a kind of pressure calibration device is used to be calibrated scene by school pressure gauge (100), including pressure calibration unit
(1) and with pressure calibration unit (1) main control unit (2) being electrically connected, pressure calibration unit (1) are external by school pressure gauge
(100), which is characterized in that the pressure calibration device is also integrated with communication module (3), and the communication module (3) is electrically connected to
Main control unit (2), and pass through network (200) access remote data base (300).
2. pressure calibration device according to claim 1, which is characterized in that the communication module (3) is to be integrated in master control
Signal procedure in unit (2), main control unit (2) are provided with network interface, and communication module (3) passes through net via the network interface
Network (200) accesses remote data base (300).
3. pressure calibration device according to claim 1, which is characterized in that the communication module (3) is to insert with connection
The hardware cell of head and network interface, communication module (3) are connected through plug and are mechanically connected and are electrically connected with main control unit (2)
It connects, by its network interface access network (200) and connects remote data base (300).
4. pressure calibration device according to any one of claims 1 to 3, which is characterized in that further include one being electrically connected to master
The photomoduel of unit (2) is controlled, the photomoduel includes camera (4), the camera (5) being arranged on camera (4) and plants
Enter to the image recognition program in main control unit (2), camera (5) face by the front appearance of school pressure gauge (100),
Captured photo is transferred to main control unit (2) via camera (4), is carried out by described image recognizer to captured photo
Image recognition is to obtain by correction power mter model and by school pressure gauge essential information.
5. pressure calibration device according to any one of claims 1 to 4, which is characterized in that further include being electrically connected to master control
The power supply (9) and/or display screen (10) of unit (2), the power supply (9) are replaceable battery group or rechargeable battery pack or external
Power supply；Display screen (10) is touch screen or light-emitting diode display.
6. pressure calibration device according to any one of claims 1 to 5, which is characterized in that the pressure calibration unit (1)
Including pressure generating unit (13), pressure control module (11), pressure measuring module (12) and the pressure being connected to by gas piping
Power interface module (14), pressure measuring module (12) and pressure control module (11) are electrically connected respectively to main control unit (2)；Pressure
Interface unit (14) is external by school pressure gauge (100), and pressure measuring module (12) provides pressure criteria data, and pressure occurs single
The high pressure gas that first (13) generate is entered pressure control module (11) by gas piping, and is arrived via pressure interface module (14)
Up to by school pressure gauge (100).
7. pressure calibration device according to any one of claims 1 to 6, which is characterized in that further include being electrically connected to master control
The temperature correction unit (6) and electric signal calibration unit of unit (2), the electric signal calibration unit include correcting current unit
(7) and/or voltage calibration unit (8).
8. a kind of processing method of pressure gauge calibration information, using the described in any item pressure calibration devices of claim 1-7
It is operated, comprising the following steps:
Acquisition of information: it will be connect by school pressure gauge (100) with pressure calibration unit (1), communication module (3) is linked into network
(200) in, and connection is established with database (300), is obtained in real time in database (300) and by the type of school pressure gauge (100)
Number corresponding calibration information, including by school pressure gauge essential information, historical calibration data and calibration program；
Calibration and data transmission: main control unit (2) is generated according to obtained calibration program by this school of school pressure gauge (100)
This calibration data is uploaded to database (300) by communication module (3) by quasi- data, main control unit (2) in real time.
9. the processing method of pressure gauge calibration information according to claim 8, which is characterized in that
In the information acquiring step, the pressure calibration device will be passed to by the type information of school pressure gauge (100)
In main control unit (2), main control unit (2) will be sent to communication module (3) by the type information of school pressure gauge (100).
10. the processing method of pressure gauge calibration information according to claim 9, which is characterized in that
It is the display screen (10) by mentioning in claim 5 that the type information by school pressure gauge (100), which is passed to mode,
Input is taken pictures image and main control unit (2) by configuration file loading, or the camera by mentioning in claim 4 (4)
In image recognition program to being obtained after the image recognition of taking pictures.
11. according to the processing method of the described in any item pressure gauge calibration informations of claim 8 to 10, which is characterized in that institute
Stating historical calibration data includes pressure indicating value, the pressure error of indication or all by all pressure calibration points of school pressure gauge
Pressure indicating value, the pressure error of indication, current value, the electric current error of indication of pressure calibration point；The calibration program includes implementing school
The automatic calibration procedure of quasi- operation；Described by school pressure gauge essential information includes by the range of school pressure gauge, precision, number
With manufactory's information.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710574039.8A CN109253837B (en) | 2017-07-14 | 2017-07-14 | Pressure calibration device and processing method of pressure instrument calibration information |
| PCT/CN2018/105370 WO2019011353A1 (en) | 2017-07-14 | 2018-09-13 | Pressure calibration apparatus and pressure instrument calibration information processing method |
| US16/613,676 US11209332B2 (en) | 2017-07-14 | 2018-09-13 | Pressure calibration apparatus and pressure instrument calibration information processing method |
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| CN201710574039.8A CN109253837B (en) | 2017-07-14 | 2017-07-14 | Pressure calibration device and processing method of pressure instrument calibration information |
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