CN109724747A - Baroceptor batch calibration system - Google Patents
Baroceptor batch calibration system Download PDFInfo
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- CN109724747A CN109724747A CN201910132167.6A CN201910132167A CN109724747A CN 109724747 A CN109724747 A CN 109724747A CN 201910132167 A CN201910132167 A CN 201910132167A CN 109724747 A CN109724747 A CN 109724747A
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- baroceptor
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Abstract
The embodiment of the present invention provides a kind of baroceptor batch calibration system, belongs to sensor technical field.It include: subtending port, data manipulation equipment and the internal constant temperature and pressure equipment for being placed with baroceptor array；Wherein, data manipulation equipment can extend the baroceptor in baroceptor array by subtending port；Data manipulation equipment, for after baroceptor array reaches preset condition, obtaining temperature quantized value and pressure quantized value that baroceptor array measures, and according to temperature quantized value and pressure quantized value, and calibration algorithm is combined to carry out coefficient calibration, obtain calibration factor.Due to including subtending port in system, so as to more neatly carry out the calibration process that large batch of baroceptor is completed in cascade extension according to user demand.Secondly, dissatisfactory calibration environment can also be adapted to and provide relatively high calibration accuracy and calibration output-consistence.
Description
Technical field
The present embodiments relate to sensor technical field more particularly to a kind of baroceptor batch calibration systems.
Background technique
The voltage signal that sensing head exports in baroceptor can be converted to true pressure after correcting by algorithm
Value.Usually require calculate the sensing head algorithm parameter, so as to voltage value can based on algorithm parameter be converted to it is true and correct
Pressure value.Calibration for baroceptor usually carries out in the environment of constant temperature and pressure, and needs to carry out multiple temperature
The calibration of degree point and pressure spot, this requires temperature and pressure that can be measured and control.Due to the own physical characteristic of sensing head
The electrical characteristic difference of conditioning circuit, causes each baroceptor all to have differences in difference and baroceptor, thus often
One baroceptor is required to carry out separate calibrations.
Baroceptor requires pressure and temperature stable and can accurately control in calibration process, if in calibration process
Pressure and temperature has larger fluctuation, this will lead to, and calibration result is not ideal enough, calibrates the pressure value and true pressure value of output
Deviation can be larger, carries out influencing baroceptor output accuracy.Stable temperature and pressure environment need a longer waiting
Process, this needs biggish time cost.It is usually calibrated one by one in such a way that batch is calibrated with reducing single sensor at present
The time is stablized in waiting in the process, is calibrated with comparatively fast completing batch.But there are the following aspects for current batch phase different
The problem of: first is that automatic lot calibration system price is higher and is not easy to expand, user calibrates higher cost；Second is that semi-automatic batch
Amount user can not extend to the batch calibration of higher amount level easily.
Summary of the invention
To solve the above-mentioned problems, the embodiment of the present invention provides one kind and overcomes the above problem or at least be partially solved
State the baroceptor batch calibration system of problem.
One side according to an embodiment of the present invention, provides a kind of baroceptor batch calibration system, which includes:
Subtending port, data manipulation equipment and the internal constant temperature and pressure equipment for being placed with baroceptor array；Wherein, data manipulation is set
The standby baroceptor that can be extended by subtending port in baroceptor array, so that can be simultaneously to the air pressure sensing of extension
Device is calibrated, and the inside of constant temperature and pressure equipment is set to preset temperature and preset pressure；Data manipulation equipment, in gas
After pressure sensor array reaches preset condition, temperature quantized value and pressure quantized value that baroceptor array measures are obtained, and
According to temperature quantized value and pressure quantized value, and calibration algorithm is combined to carry out coefficient calibration, calibration factor is obtained, so that air pressure
Sensor array carries out calibration output according to calibration factor.
System provided in an embodiment of the present invention, due in system include subtending port, so as to more neatly according to
Family demand carries out the calibration process that large batch of baroceptor is completed in cascade extension.Secondly, can also adapt to dissatisfactory
Calibration environment and relatively high calibration accuracy and calibration output-consistence are provided, so that low cost can be realized, high-precision and high
Efficient Semi-automatic batch is calibrated.At the same time, calibration hardware cost is also reduced, is reduced because calibration needs accurate and stablizes
Temperature/pressure required for calibrate stablize the time.Finally, the system also has the function of power-off heavy duty, so as to ensure to use
Family acquires data in system accident power-off and does not lose.In addition, the system has external data to be loaded into function, the function by covering more
More calibration point parallel data acquisitions of system, can further reduce because of the waiting time required for equilibrium temperature/pressure, thus into
One step promotes batch calibration efficiency, to increase user's production capacity.
It should be understood that above general description and following detailed description be it is exemplary and explanatory, can not
Limit the embodiment of the present invention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of baroceptor batch calibration system provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of baroceptor batch calibration system provided in an embodiment of the present invention；
Fig. 3 is a kind of main frame structure signal of baroceptor batch calibration system provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of functional schematic of baroceptor batch calibration system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The voltage signal that sensing head exports in baroceptor can be converted to true pressure after correcting by algorithm
Value.Usually require calculate the sensing head algorithm parameter, so as to voltage value can based on algorithm parameter be converted to it is true and correct
Pressure value.Calibration for baroceptor usually carries out in the environment of constant temperature and pressure, and needs to carry out multiple temperature
The calibration of degree point and pressure spot, this requires temperature and pressure that can be measured and control.Due to the own physical characteristic of sensing head
The electrical characteristic difference of conditioning circuit, causes each baroceptor all to have differences in difference and baroceptor, thus often
One baroceptor is required to carry out separate calibrations.
Baroceptor requires pressure and temperature stable and can accurately control in calibration process, if in calibration process
Pressure and temperature has larger fluctuation, this will lead to, and calibration result is not ideal enough, calibrates the pressure value and true pressure value of output
Deviation can be larger, carries out influencing baroceptor output accuracy.Stable temperature and pressure environment need a longer waiting
Process, this needs biggish time cost.At present to reduce because in single calibration process usually in such a way that batch is calibrated
It waits and stablizes the time, calibrated with comparatively fast completing batch.But there is the following aspects in current batch phase different: one
It is that automatic lot calibration system price is higher and be not easy to expand, user calibrates higher cost；Second is that Semi-automatic batch user without
Method extends to the batch calibration of higher amount level easily.
For said circumstances, the embodiment of the invention provides a kind of baroceptor batch calibration systems.Wherein, air pressure transmission
The voltage signal that sensing head exports in sensor can be converted to true pressure value after correcting by algorithm.Air pressure calibration system
Effect be calculate the sensor head algorithm parameter, so that voltage value can be converted to true and correct pressure value through algorithm.
Calibration is usually to carry out under constant temperature and pressure environment, and need to carry out the calibration of multiple temperature spots and pressure spot, this requirement
Temperature and pressure can be measured and control.Referring to Fig. 1, which includes: that subtending port 1, data manipulation equipment 2 and inside are put
It is equipped with the constant temperature and pressure equipment 4 of baroceptor array 3；Wherein, data manipulation equipment 2 can extend air pressure by subtending port 1
Baroceptor in sensor array 3, so that can be calibrated simultaneously to the baroceptor of extension, constant temperature and pressure equipment
4 inside is set to preset temperature and preset pressure；Data manipulation equipment 2, for reaching default in baroceptor array 1
After condition, temperature quantized value and pressure quantized value that baroceptor array 1 measures are obtained, and according to temperature quantized value and pressure
Quantized value, and calibration algorithm is combined to carry out coefficient calibration, calibration factor is obtained, so that baroceptor array 1 is according to calibration
Coefficient carries out calibration output.
Wherein it is possible to which first setting constant temperature and pressure equipment 4 arrives defined temperature and pressure, until constant temperature and pressure equipment 4 reaches
After preset condition, data manipulation equipment 2, the temperature quantized value and pressure quantized value of the available array of baroceptor at this time 3,
To be calibrated for the later period to baroceptor array 3.It should be noted that after calibration, subsequent baroceptor battle array
Column 3 can directly calculate the pressure after output is calibrated according to calibration factor.
System provided in an embodiment of the present invention, due in system include subtending port, so as to more neatly according to
Family demand carries out the calibration process that large batch of baroceptor is completed in cascade extension.Secondly, can also adapt to dissatisfactory
Calibration environment and relatively high calibration accuracy and calibration output-consistence are provided, so that low cost can be realized, high-precision and high
Efficient Semi-automatic batch is calibrated.At the same time, calibration hardware cost is also reduced, is reduced because calibration needs accurate and stablizes
Temperature/pressure required for calibrate stablize the time.Finally, the system also has the function of power-off heavy duty, so as to ensure to use
Family acquires data in system accident power-off and does not lose.In addition, the system has external data to be loaded into function, the function by covering more
More calibration point parallel data acquisitions of system, can further reduce because of the waiting time required for equilibrium temperature/pressure, thus into
One step promotes batch calibration efficiency, to increase user's production capacity.
Content based on the above embodiment, as a kind of alternative embodiment, data manipulation equipment 2 is also used to air pressure transmission
The operating mode of baroceptor is adjusted to calibration mode in sensor array 3.Wherein, calibration mode refers to so that air pressure sensing
Device enters align mode, rather than carries out data acquisition state.
Content based on the above embodiment, as a kind of alternative embodiment, baroceptor array 3 is internally provided with deposit
Device is to carry out parameter configuration to baroceptor；Data manipulation equipment 2 includes: host computer 21 and data acquisition board 22；Host computer
21, for passing through the inner parameter of 22 configuration register of data acquisition board, by baroceptor in baroceptor array 3
Operating mode is adjusted to calibration mode.Correspondingly, air pressure calibration system middle rank connecting port 1, host computer 21, data acquisition board 22 and
The connection relationship that inside is placed between the constant temperature and pressure equipment 4 of baroceptor array 3 can refer to Fig. 2.Wherein, air pressure sensing
It is configured with register inside device array 3, also refers to each baroceptor in baroceptor array 3 and is each equipped with one
Register is also possible to the corresponding register of all baroceptor arrays 3.
Content based on the above embodiment, as a kind of alternative embodiment, data manipulation equipment 2 include: host computer 21 and
Data acquisition board 22；Data acquisition board 22, for obtaining baroceptor after baroceptor array 3 reaches preset condition
The temperature quantized value and pressure quantized value that array 3 measures；Host computer 21 is used for according to temperature quantized value and pressure quantized value, and
Coefficient calibration is carried out in conjunction with calibration algorithm, calibration factor is obtained, so that baroceptor array 3 carries out school according to calibration factor
Quasi- output.
Content based on the above embodiment, as a kind of alternative embodiment, baroceptor in baroceptor array 3
It is internally provided with register；Correspondingly, host computer 21, for calibration factor to be written in register by data acquisition board 22,
So that baroceptor is according to calibration factor progress pressure conversion in baroceptor array 3.
Content based on the above embodiment, as a kind of alternative embodiment, preset condition is the temperature of baroceptor array 3
Degree is consistent with preset temperature, and the pressure on 3 surface of baroceptor array is consistent with preset pressure.
Content based on the above embodiment, as a kind of alternative embodiment, host computer 21 is also used to baroceptor battle array
The gas pressure measurement of baroceptor is verified in column 3.
Content based on the above embodiment, as a kind of alternative embodiment, subtending port 1 is USB interface.
In order to make it easy to understand, now in conjunction with practical application scene, to baroceptor batch provided in an embodiment of the present invention school
The implementation process of Barebone is illustrated, specific as follows:
(1) parameter required for configuration batch is calibrated, and configuration batch calibration environment, initialize calibration system；
(2) it is arranged under constant temperature and pressure equipment to defined temperature and pressure, waits for a period of time, so as to pressure and chip inside and outside temperature
Reach consistent and stablizes；(3) data acquisition is carried out to all baroceptors for participating in calibration by host computer after stablizing.
By the storage of collected data into local data base, so that the later period carries out the batch calibration of baroceptor；(4) it jumps again
Step 2 sequentially executes, after the completion of the temperature spot and pressure point data that all calibrations need to acquire acquire, i.e., settable batch school
Barebone calls calibration algorithm to carry out Batch processing algorithm calibration to the data of acquisition, and the coefficient calibrated is stored in local data
In library；(5) after calibrating completion in batches and on-line testing passes through, obtained coefficient of efficiency will be calibrated in batches and passes through data acquisition board
Programming is into pressure sensor register.So that later period algorithm call parameters directly export the pressure after calibration；(6) programming is completed
Afterwards, online secondary air pressure measurement output verifying is carried out to the baroceptor of burning online, grasps and calibrates so as to clear verifying
Reality output effect.
It should be noted that in baroceptor batch calibration system provided in an embodiment of the present invention, each block number evidence
Collection plate can support the calibration access of maximum 64 baroceptors, data acquisition board can by USB mode and upper computer end into
Row data communication.In addition, batch calibration system allows data acquisition board to carry out system extension by USB cascade system, with
Just increase the disposable amount of calibration of system, to improve calibration efficiency, maximum can support primary calibration 1024.System is initial
Change, acquisition, calibration, burning and authentication function can enter in host computer main interface navigation bar, to avoid the frequency of Calibration interface
Numerous navigation jumps.Finally, the operation data of all functional modules can be reserved in local sql database, asked so as to subsequent
Topic, which can be recalled, checks.Calibrate simultaneously/burning/verification result can also separately be resident locally, so that user carries out reality after calibration
The data of border output are checked.
Using data acquisition board as hardware communications plate, for host computer is volume production system host computer, in conjunction with practical application scene,
Concrete function and main body frame in baroceptor batch calibration system provided in an embodiment of the present invention can refer to Fig. 3.This hair
The correlation function process that the baroceptor batch calibration system that bright embodiment provides provides can refer to Fig. 4.
Compared with conventional batch calibration system, baroceptor batch calibration system provided in an embodiment of the present invention has such as
Lower feature: (1) user can arbitrarily use data acquisition board as needed, and carry out cascade extension by USB to increase or decrease batch
The quantity of calibration.Every piece of database supports the calibration of maximum 64 baroceptors, the cascade that system could support up 16 blocks of plates (to press
16 pieces of plate cascades, maximum are supported 1024 and are calibrated simultaneously)；(2) system supports power-off Locale Holding, continues to calibrate after powering on, from
Lead to loss of data because of device systems accident power-off without existing, and needs the problem of resurveying data；(3) system
Support external calibration data to import, the functions of covering system in parallel calibration more.The temperature for needing to acquire due to same a collection of baroceptor
Degree point has multiple, and heats up and waiting temperature stabilizations is the process extremely grown slowly, and the present invention can be only right with every set system
It answers a temperature spot namely each preset temperature all to correspond to a set of baroceptor batch provided in an embodiment of the present invention to calibrate
System, can prepare in the actual implementation process cover baroceptor batch calibration systems provided in an embodiment of the present invention with into
Row parallel calibration, this just skips heating substantially and waits stable process.After set of system acquires one temperature spot of completion, it will adopt
The data collected import in the system that another specially acquires next temperature spot, accomplish acquisition and school that " zero " waits substantially
It is quasi-.
System embodiment described above is only schematical, wherein unit can be as illustrated by the separation member
Or may not be and be physically separated, component shown as a unit may or may not be physical unit, i.e.,
It can be located in one place, or may be distributed over multiple network units.It can select according to the actual needs therein
Some or all of the modules achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creative labor
In the case where dynamic, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (8)
1. a kind of baroceptor batch calibration system characterized by comprising subtending port, data manipulation equipment and inside
It is placed with the constant temperature and pressure equipment of baroceptor array；Wherein, the data manipulation equipment can be expanded by the subtending port
Baroceptor array described in exhibition, so that can be calibrated simultaneously to the baroceptor of extension, the constant temperature and pressure equipment
Inside be set to preset temperature and preset pressure；The data manipulation equipment, for being reached in the baroceptor array
To after preset condition, the temperature quantized value and pressure quantized value that the baroceptor array measures are obtained, and according to the temperature
Metrization value and the pressure quantized value, and calibration algorithm is combined to carry out coefficient calibration, calibration factor is obtained, so that the gas
Pressure sensor array carries out calibration output according to the calibration factor.
2. baroceptor batch calibration system according to claim 1, which is characterized in that the data manipulation equipment,
It is also used to the operating mode of baroceptor in the baroceptor array being adjusted to calibration mode.
3. baroceptor batch calibration system according to claim 1, which is characterized in that the baroceptor array
Middle baroceptor is internally provided with register to carry out parameter configuration to baroceptor；The data manipulation equipment includes:
Host computer and data acquisition board；The host computer will for configuring the inner parameter of the register by data acquisition board
The operating mode of baroceptor is adjusted to calibration mode in the baroceptor array.
4. baroceptor batch calibration system according to claim 1, which is characterized in that the data manipulation equipment packet
It includes: host computer and data acquisition board；The data acquisition board, for after the baroceptor array reaches preset condition,
Obtain the temperature quantized value and pressure quantized value that the baroceptor array measures；The host computer, for according to the temperature
Metrization value and the pressure quantized value, and calibration algorithm is combined to carry out coefficient calibration, calibration factor is obtained, so that the gas
Pressure sensor array is calibrated according to the calibration factor.
5. baroceptor batch calibration system according to claim 4, which is characterized in that the baroceptor array
Middle baroceptor is internally provided with register；Correspondingly, the host computer, being used for will be described by the data acquisition board
Calibration factor is written in the register, so that baroceptor is according to the calibration factor in the baroceptor array
Carry out pressure conversion.
6. baroceptor batch calibration system according to any one of claim 1 to 5, which is characterized in that described pre-
If condition is consistent with the preset temperature for the temperature of the baroceptor array, and the baroceptor array surface
Pressure is consistent with the preset pressure.
7. baroceptor batch calibration system according to claim 5, which is characterized in that the host computer is also used to
The gas pressure measurement of baroceptor in the baroceptor array is verified.
8. baroceptor batch calibration system according to claim 1, which is characterized in that the subtending port is USB
Interface.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111238724A (en) * | 2020-01-18 | 2020-06-05 | 天水逢泰科技有限责任公司 | High-precision pressure transmitter aging test system test device |
| CN111473912A (en) * | 2020-04-09 | 2020-07-31 | 海南省气象科学研究所 | Simple, convenient and efficient digital air pressure sensor adjusting method |
| CN114074913A (en) * | 2020-08-21 | 2022-02-22 | Geo科技有限公司 | Liquid distributor and precise calculation method for residual liquid amount in injector by using same |
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Application publication date: 20190507 |