CN108287633A - A kind of calibration method and device of pressure sensor - Google Patents
A kind of calibration method and device of pressure sensor Download PDFInfo
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- CN108287633A CN108287633A CN201810066556.9A CN201810066556A CN108287633A CN 108287633 A CN108287633 A CN 108287633A CN 201810066556 A CN201810066556 A CN 201810066556A CN 108287633 A CN108287633 A CN 108287633A
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Abstract
The embodiment of the invention discloses a kind of calibration method of pressure sensor and devices, this method includes the first pressure value for the pressing operation of terminal screen by pressure sensor detection, first pressure value is calibrated according to predetermined target alignment parameter to obtain second pressure value, and is directed to the output pressure value of pressing operation using second pressure value as pressure sensor.The pressure value that pressure sensor detects can be calibrated automatically according to predetermined calibration parameter as it can be seen that implementing the embodiment of the present invention, without extraneous assisted calibration tool, simplifies calibration flow, improve the usage experience of user.
Description
Technical field
The present invention relates to electronic technology fields, and in particular to a kind of calibration method and device of pressure sensor.
Background technology
With the fast development of electronic technology, pressure sensor, mobile terminal are installed on more and more mobile terminals
Operational order input by user can be detected by pressure sensor, i.e. mobile terminal can detect user by pressure sensor
Pressing operation and the pressing operation pressure value, the pressing is then determined according to the correspondence of pressure value and operational order
The corresponding operational order of pressure value of operation.As it can be seen that being calibrated to pressure sensor so that pressure sensor accurately detects
Going out the pressure value of pressing operation is particularly important.
Currently, the calibration method of pressure sensor mainly calibrates pressure sensor by assisted calibration tool,
Such as by the pressure sensor calibrating apparatus that is made of tracheae, air gauge and data acquisition and procession component to pressure sensor
It is calibrated.As it can be seen that current pressure sensor calibration method there is a problem of it is cumbersome.
Invention content
The embodiment of the invention discloses a kind of calibration method of pressure sensor and devices, can be without assisted calibration
Tool conveniently realizes the calibration of the pressure value detected to pressure sensor.
First aspect of the embodiment of the present invention discloses a kind of calibration method of pressure sensor, the method includes：
By pressure sensor detection for the first pressure value of the pressing operation of terminal screen；
The first pressure value is calibrated to obtain second pressure value according to predetermined target alignment parameter；
The second pressure value is determined as the output pressure value that the pressure sensor is directed to the pressing operation.
In the first possible realization method of first aspect of the embodiment of the present invention, the target alignment parameter includes school
Quasi- coefficient and calibration offset；
It is described that the first pressure value is calibrated to obtain second pressure according to predetermined target alignment parameter
Value, including：
Calculate the product of the calibration factor and the first pressure value；
By the product and the calibration offset and be determined as second pressure value.
In conjunction with the first possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention
Second of possible realization method in, it is described by pressure sensor detection for terminal screen pressing operation first
It is described the first pressure value to be calibrated according to predetermined target alignment parameter to obtain the second pressure after pressure value
Before force value, the method further includes：
Determine target pressing position point of the pressing operation in the terminal screen；
The target pressing position point corresponding calibration ginseng is obtained in correspondence from pressing position point with calibration parameter
Number, and the corresponding calibration parameter of the target pressing position point is determined as target alignment parameter.
In conjunction with second of possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention
The third possible realization method in, it is described to obtain the target from pressing position point and the correspondence of calibration parameter and press
Before pressing the corresponding calibration parameter of location point, the method further includes：
1 pressing position points are detected in the terminal screen in third pressure value by the pressure sensor
Test the 4th pressure value under pressing operation；
Each pressing position o'clock in at least four pressing positions point is detected by the pressure sensor to press the 5th
The 6th pressure value under the test pressing operation of force value；
Described in the first difference and each pressing position point of the third pressure value and the 5th pressure value
The ratio of 4th pressure value and the second difference of the 6th pressure value of the pressing position point is determined as the pressing position point
Calibration factor；
The ratio of the third difference of each pressing position point and the 4th difference of the pressing position point is determined as this
The calibration offset of pressing position point, wherein the third difference of each pressing position point be equal to the 5th pressure value with
The 6th pressure of the product of the 4th pressure value of the pressing position point and the third pressure value and the pressing position point
4th difference of the difference of the product of force value, each pressing position point is equal to the 4th pressure value of the pressing position point
With the difference of the 6th pressure value of the pressing position point；
According to the calibration offset of the calibration factor of each pressing position point and the pressing position point, determine by
Press the correspondence of location point and calibration parameter.
In conjunction with the third possible realization method of first aspect of the embodiment of the present invention, in first aspect of the embodiment of the present invention
The 4th kind of possible realization method in, the third pressure value test pressing operation and the 5th pressure value test
Pressing operation is applied on the terminal screen by plane silica gel by normal pressure controller.
In conjunction with the embodiment of the present invention in a first aspect, first aspect of the embodiment of the present invention the 5th kind of possible realization method
In, after the first pressure value of the pressing operation for being directed to terminal screen by pressure sensor detection, the basis is advance
Determining target alignment parameter calibrates so that before obtaining second pressure value, the method is also wrapped the first pressure value
It includes：
Judge whether the terminal screen is in horizontality；
When the terminal screen is in the horizontality, execute described according to predetermined target alignment parameter pair
The first pressure value is calibrated to obtain the operation of second pressure value.
Second aspect of the embodiment of the present invention discloses a kind of calibrating installation of pressure sensor, and described device includes detection mould
Block, calibration module and the first determining module, wherein：
The detection module, for the first pressure by pressure sensor detection for the pressing operation of terminal screen
Value；
The calibration module, for according to predetermined target alignment parameter to the first pressure value calibrated with
Obtain second pressure value；
First determining module is directed to the pressing for the second pressure value to be determined as the pressure sensor
The output pressure value of operation.
In the first possible realization method of second aspect of the embodiment of the present invention, the target alignment parameter includes school
Quasi- coefficient and calibration offset；
The calibration module includes computational submodule and determination sub-module, wherein：
The computational submodule, the product for calculating the calibration factor and the first pressure value；
The determination sub-module, for by the product and the calibration offset and be determined as the second pressure
Value.
In conjunction with the first possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention
Second of possible realization method in, described device further includes the second determining module and acquisition module, wherein：
Second determining module is directed to terminal for executing described detected by pressure sensor in the detection module
It is executed after the operation of the first pressure value of the pressing operation of screen and in the calibration module described according to predetermined mesh
Before mark calibration parameter is calibrated the operation to obtain second pressure value to the first pressure value, the pressing operation is determined
Target pressing position point in the terminal screen；
The acquisition module presses position for obtaining the target from the correspondence of pressing position point and calibration parameter
Set a little corresponding calibration parameter；
First determining module is additionally operable to the corresponding calibration parameter of the target pressing position point being determined as the mesh
Mark calibration parameter.
In conjunction with second of possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention
The third possible realization method in, the detection module is additionally operable to execute in the acquisition module described from pressing position
Before the operation of point calibration parameter corresponding with the target pressing position point is obtained in the correspondence of calibration parameter, pass through institute
It states pressure sensor and detects in the terminal screen 1 pressing position points under the test pressing operation of third pressure value
The 4th pressure value, and pass through the pressure sensor and detect each pressing position point in at least four pressing positions point
The 6th pressure value under the test pressing operation of the 5th pressure value；
First determining module, be additionally operable to by the first difference of the third pressure value and the 5th pressure value with it is every
The ratio of the 4th pressure value of a pressing position point and the second difference of the 6th pressure value of the pressing position point
Value is determined as the calibration factor of the pressing position point, and by the third difference of each pressing position point and the pressing position
The ratio of 4th difference of point is determined as the calibration offset of the pressing position point, and according to the school of each pressing position point
The calibration offset of quasi- coefficient and the pressing position point, determines the correspondence of pressing position point and calibration parameter, wherein
The third difference of each pressing position point is equal to the 4th pressure value of the 5th pressure value and the pressing position point
Product and the third pressure value and the product of the 6th pressure value of the pressing position point difference, each pressing
4th difference of location point is equal to the 6th pressure of the 4th pressure value and the pressing position point of the pressing position point
The difference of value.
In conjunction with the third possible realization method of second aspect of the embodiment of the present invention, in second aspect of the embodiment of the present invention
The 4th kind of possible realization method in, the third pressure value test pressing operation and the 5th pressure value test
Pressing operation is applied on the terminal screen by plane silica gel by normal pressure controller.
In conjunction with second aspect of the embodiment of the present invention, in the 5th kind of possible realization method of second aspect of the embodiment of the present invention
In, described device further includes judgment module, wherein：
The judgment module is directed to terminal screen for executing described detected by pressure sensor in the detection module
Pressing operation first pressure value operation after and the calibration module execute it is described according to predetermined target school
Before quasi- parameter is calibrated the operation to obtain second pressure value to the first pressure value, whether the terminal screen is judged
In horizontality, when judging result is to be, it is described according to predetermined target alignment to trigger the calibration module execution
Parameter calibrates to obtain the operation of second pressure value the first pressure value.
In the embodiment of the present invention, the first pressure value of the pressing operation of terminal screen is directed to by pressure sensor detection,
First pressure value is calibrated according to predetermined target alignment parameter to obtain second pressure value, and by second pressure value
The output pressure value of pressing operation is directed to as pressure sensor.It can be automatically according to advance as it can be seen that implementing the embodiment of the present invention
Determining calibration parameter calibrates the pressure value that pressure sensor detects, without extraneous assisted calibration tool, letter
Change calibration flow, improves the usage experience of user.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of flow diagram of the calibration method of pressure sensor disclosed by the embodiments of the present invention；
Fig. 2 is the flow diagram of the calibration method of another pressure sensor disclosed by the embodiments of the present invention；
Fig. 3 is a kind of structural schematic diagram of the calibrating installation of pressure sensor disclosed by the embodiments of the present invention；
Fig. 4 is the structural schematic diagram of the calibrating installation of another pressure sensor disclosed by the embodiments of the present invention；
Fig. 5 is the structural schematic diagram of the calibrating installation of another pressure sensor disclosed by the embodiments of the present invention；
Fig. 6 is the structural schematic diagram of the calibrating installation of another pressure sensor disclosed by the embodiments of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of calibration method of pressure sensor and devices, can be automatically according to predetermined
Calibration parameter the pressure value that pressure sensor detects is calibrated, without extraneous assisted calibration tool, simplify
Flow is calibrated, the usage experience of user is improved.It is described in detail separately below.
Referring to Fig. 1, Fig. 1 is a kind of flow signal of the calibration method of pressure sensor disclosed by the embodiments of the present invention
Figure.Wherein, method shown in FIG. 1 can be applied to smart mobile phone (such as Android phone, iOS mobile phones), tablet computer, the palm
Upper computer and mobile internet device (MobileInternetDevices, MID), PAD etc. are provided with the end of pressure sensor
In end.As shown in Figure 1, the calibration method of the pressure sensor may comprise steps of：
S101, the first pressure value that the pressing operation for terminal screen is detected by pressure sensor.
In the embodiment of the present invention, pass through the first pressure for the pressing operation for terminal screen that pressure sensor detects
Value is more than or equal to preset pressure value, i.e., only when the first pressure value of the pressing operation for terminal screen is more than or equal to default pressure
When force value, pressing operation can be detected by pressure sensor, and then detect the first pressure value of pressing operation.
S102, above-mentioned first pressure value is calibrated to obtain second pressure according to predetermined target alignment parameter
Value.
In the embodiment of the present invention, target alignment parameter can be the calibration parameter being manually set, and can also be according to corresponding
The calibration parameter that analyzes of test pressing operation, the embodiment of the present invention do not limit.
S103, above-mentioned second pressure value is determined as to the output pressure value that pressure sensor is directed to above-mentioned pressing operation.
In the embodiment of the present invention, above-mentioned second pressure value is determined as the output that pressure sensor is directed to above-mentioned pressing operation
Pressure value realizes the calibration of the first pressure value detected to pressure sensor, and then terminal can be made second pressure value pair
The operational order answered is determined as the corresponding operational order of above-mentioned pressing operation and executes, and calibration flow is simple, improves user's
Usage experience.
As an alternative embodiment, above-mentioned target alignment parameter may include calibration factor (such as 0.9 or 1.1)
And/or calibration offset (such as 0.1N or 0.2N), and when above-mentioned target alignment parameter includes calibration factor, according to true in advance
Fixed target alignment parameter calibrates above-mentioned first pressure value may include to obtain second pressure value：
The product of calibration factor and above-mentioned first pressure value is calculated, and the product is determined as above-mentioned second pressure value.
When above-mentioned target alignment parameter includes calibration offset, according to predetermined target alignment parameter to above-mentioned
One pressure value is calibrated may include to obtain second pressure value：
Calculate above-mentioned first pressure value and target alignment parameter and, and result of calculation is determined as above-mentioned second pressure
Value.
When above-mentioned target alignment parameter includes calibration factor and calibration offset, according to predetermined target alignment
Parameter calibrates above-mentioned first pressure value may include to obtain second pressure value：
The product of calibration factor and above-mentioned first pressure value is calculated, and will be calculated product and calibration offset and true
It is set to above-mentioned second pressure value；Or
Calculate above-mentioned first pressure value and calibration offset and, and calculated and product with calibration factor is determined
For above-mentioned second pressure value.
In the optional embodiment, above-mentioned target alignment parameter is for indicating the actually detected pressure arrived of pressure sensor
Relationship between force value and the actual pressure value of pressing operation can make pressure sensor be directed to the output pressure of pressing operation in this way
Force value as close as or equal to pressing operation actual pressure value (i.e. theoretical pressure value), such as linear relationship nIt is practical=k*xDetection
+ b, wherein xDetectionFor the pressure value of the actually detected pressing operation arrived of pressure sensor, nIt is practicalIt is directed to the pressing for pressure sensor
The output pressure value of operation, k is calibration factor and b is calibration offset, for another example parabolic relation etc., and the embodiment of the present invention is not made
It limits.As an example it is assumed that the actual pressure of the pressure value and pressing operation of the actually detected pressing operation arrived of pressure sensor
Relationship between value is linear relationship, and the pressure value of the actually detected pressing operation arrived of pressure sensor is 4N, and calibration factor k is
1 and calibration offset b is 1N, then the pressure value of pressure sensor final output is (4*1+1) N.
As another optional embodiment, after the step S101 that is finished, and before executing step S102,
Following operation can also be performed：
Judge whether above-mentioned terminal screen is in horizontality, when above-mentioned terminal screen is in horizontality, triggering is held
Row is above-mentioned to calibrate to obtain the behaviour of second pressure value above-mentioned first pressure value according to predetermined target alignment parameter
Make.The accuracy of the first pressure value for the pressing operation that pressure sensor detects can not only be improved in this way, and can be prevented
The maloperation of user.
As another optional embodiment, after the step S101 that is finished, and before executing step S102,
Following operation can also be performed：
Judge whether above-mentioned terminal screen is in screen lock state, when above-mentioned terminal screen is not in screen lock state, judges
Whether above-mentioned terminal screen is in horizontality, and when above-mentioned terminal screen is in horizontality, it is pre- that triggering executes above-mentioned basis
First determining target alignment parameter calibrates to obtain the operation of second pressure value above-mentioned first pressure value.It can prevent in this way
The only maloperation of user thereby reduces electricity caused by due to the maloperation of user triggering executes corresponding operational order and damages
Consumption, improves the usage experience of user.
It should be noted that calibration method disclosed by the embodiments of the present invention can also be applied to be provided with the terminal of pressure membrane
In, to realize the calibration of the pressure value of the pressing operation detected to pressure membrane.
In the embodiment of the present invention, the first pressure value of the pressing operation of terminal screen is directed to by pressure sensor detection,
First pressure value is calibrated according to predetermined target alignment parameter to obtain second pressure value, and by second pressure value
The output pressure value of pressing operation is directed to as pressure sensor.It can be automatically according to advance as it can be seen that implementing the embodiment of the present invention
Determining calibration parameter calibrates the pressure value that pressure sensor detects, without extraneous assisted calibration tool, letter
Change calibration flow, improves the usage experience of user.
Referring to Fig. 2, Fig. 2 is the flow signal of the calibration method of another pressure sensor disclosed by the embodiments of the present invention
Figure.Wherein, method shown in Fig. 2 can be applied to smart mobile phone (such as Android phone, iOS mobile phones), tablet computer, the palm
Upper computer and mobile internet device (MobileInternetDevices, MID), PAD etc. are provided with the end of pressure sensor
In end.As shown in Fig. 2, the calibration method of the pressure sensor may comprise steps of：
S201, the first pressure value that the pressing operation for terminal screen is detected by pressure sensor.
In the embodiment of the present invention, pass through the first pressure for the pressing operation for terminal screen that pressure sensor detects
Value is more than or equal to preset pressure value, i.e., only when the first pressure value of the pressing operation for terminal screen is more than or equal to default pressure
When force value, pressing operation can be detected by pressure sensor, and then detect the first pressure value of pressing operation.
S202, target pressing position point of the above-mentioned pressing operation in terminal screen is determined.
The corresponding school of above-mentioned target pressing position point is obtained in S203, the correspondence from pressing position point with calibration parameter
Quasi- parameter.
In the embodiment of the present invention, different pressing position points correspond to different calibration parameters, can be realized in this way to above-mentioned
The differentiation of one pressure value and the calibration of precision.
S204, the corresponding calibration parameter of above-mentioned target pressing position point is determined as target alignment parameter.
In the embodiment of the present invention, which includes calibration factor and calibration offset.
S205, above-mentioned first pressure value is calibrated to obtain second pressure value according to above-mentioned target alignment parameter.
S206, above-mentioned second pressure value is determined as to the output pressure value that pressure sensor is directed to above-mentioned pressing operation.
In the embodiment of the present invention, above-mentioned second pressure value is determined as the output that pressure sensor is directed to above-mentioned pressing operation
Pressure value realizes the calibration of the first pressure value detected to pressure sensor, and then terminal can be made second pressure value pair
The operational order answered is determined as the corresponding operational order of above-mentioned pressing operation and executes, and calibration flow is simple, improves user's
Usage experience.
As an alternative embodiment, being carried out to above-mentioned first pressure value according to predetermined target alignment parameter
It calibrates to obtain second pressure value and may include：
The product of calibration factor and above-mentioned first pressure value is calculated, and will be calculated product and calibration offset and true
It is set to above-mentioned second pressure value；Or
Calculate above-mentioned first pressure value and calibration offset and, and calculated and product with calibration factor is determined
For above-mentioned second pressure value.
As another optional embodiment, before executing step S201, following operation can also be performed：
1 pressing position points are detected in above-mentioned terminal screen in the test of third pressure value by pressure sensor
The 4th pressure value under pressing operation；
Each survey of the pressing position o'clock in the 5th pressure value in 1 pressing position points is detected by pressure sensor
Try the 6th pressure value under pressing operation；
Third pressure value and the first difference and the 4th pressure value of each pressing position point of the 5th pressure value are pressed with this
The ratio of the second difference of the 6th pressure value of location point is pressed to be determined as the calibration factor of the pressing position point；
The ratio of the third difference of each pressing position point and the 4th difference of the pressing position point is determined as the pressing
The calibration offset of location point, wherein the third difference of each pressing position point is equal to the 5th pressure value and the pressing position point
The 4th pressure value product and third pressure value and the product of the 6th pressure value of the pressing position point difference, it is each to press
4th difference of location point is equal to the difference of the 4th pressure value of the pressing position point and the 6th pressure value of the pressing position point；
According to the calibration offset of the calibration factor of each pressing position point and the pressing position point, pressing position is determined
Set the correspondence a little with calibration parameter.
In the optional embodiment of the another kind, 1 pressing position points are determined from terminal screen in advance,
Such as it is located at the pressing position point in four apex angles of terminal screen and the pressing position point positioned at the center of terminal screen
Deng, for another example first by terminal screen be evenly dividing into preset quantity screen area and using the center of each screen area as
The 1 pressing position points determined, wherein preset quantity is the even number more than or equal to 4, and the embodiment of the present invention does not limit
It is fixed.
It is further alternative, the test pressing operation of above-mentioned third pressure value and the test pressing of above-mentioned 5th pressure value
Operation can be applied to by plane silica gel on terminal screen by normal pressure controller.
In actual alignment operation, one can be placed on and be bonded completely with terminal by being provided with the terminal of pressure sensor
Groove in, in this way can either fixed terminal, and terminal screen can be kept to be in horizontality, then by one and end panel
The equirotal plane silica gel of curtain is laid on terminal screen, and applies third pressure to terminal screen by normal pressure tester
The test pressing operation of force value and the test pressing operation of the 5th pressure value, detect at least according to by pressure sensor
Four pressing position points are in the 4th pressure value of third pressure value tested under pressing operation and in the test of the 5th pressure value
The 6th pressure value under pressing operation determine each pressing position point for indicating the pressing operation that pressure sensor detects
Pressure value and the actual pressure value for testing pressing operation between relationship calibration parameter, and by the school of each pressing position point
Quasi- parameter is stored, subsequently directly to be grasped to the pressing of the pressing position point according to the calibration parameter of each pressing position point
The pressure value of work is calibrated.
As another optional embodiment, after the S201 that is finished, and before executing step S202, may be used also
To execute following operation：
Judge whether above-mentioned terminal screen is in horizontality, when above-mentioned terminal screen is in horizontality, triggering is held
Row step S202；Or
Judge whether above-mentioned terminal screen is in screen lock state, when above-mentioned terminal screen is not in screen lock state, judges
Judge whether above-mentioned terminal screen is in horizontality, when above-mentioned terminal screen is in horizontality, triggering executes step
S202。
It should be noted that calibration method disclosed in the embodiment of the present invention can also be applied to be provided with the end of pressure membrane
In end, to realize the calibration of the pressure value of the pressing operation detected to pressure membrane.
Implement the pressure that the embodiment of the present invention can detect pressure sensor automatically according to predetermined calibration parameter
Force value is calibrated, and without extraneous assisted calibration tool, is simplified calibration flow, is improved the usage experience of user.
Referring to Fig. 3, Fig. 3 is a kind of structural representation of the calibrating installation of pressure sensor disclosed by the embodiments of the present invention
Figure.Wherein, the calibrating installation of pressure sensor shown in Fig. 3 may be mounted at smart mobile phone (such as Android phone, iOS mobile phones
Deng), tablet computer, the settings such as palm PC and mobile internet device (MobileInternetDevices, MID), PAD
Have in the terminal of pressure sensor.As shown in figure 3, the calibrating installation of the pressure sensor may include detection module 301, calibration
Module 302 and the first determining module 303, wherein：
Detection module 301 is used for the first pressure value for the pressing operation of terminal screen by pressure sensor detection.
Calibration module 302 be used for according to predetermined target alignment parameter to detection module 301 detect it is above-mentioned by
The first pressure value of press operation is calibrated to obtain second pressure value.
First determining module 303, which is used to calibration module 302 calibrating obtained second pressure value, is determined as pressure sensor
For the output pressure value of above-mentioned pressing operation.
As an alternative embodiment, above-mentioned target alignment parameter may include calibration factor and calibrated offset
Amount, and calibration module 302 may include computational submodule 3021 and determination sub-module 3022, at this point, the pressure sensor
The structure of calibrating installation can with as shown in figure 4, Fig. 4 be another pressure sensor disclosed by the embodiments of the present invention calibrating installation
Structural schematic diagram.Wherein：
Computational submodule 3021 is used to calculate the product of above-mentioned calibration factor and above-mentioned first pressure value, and calculates this and multiply
Product with above-mentioned calibration offset and；
Determination sub-module 3022 be used for by 3021 calculated product of computational submodule with it is above-mentioned calibration offset and true
It is set to above-mentioned second pressure value.
Further alternative in the optional embodiment, the calibrating installation of the pressure sensor can also include the
Two determining modules 304 and acquisition module 305, at this point, the structure of the calibrating installation of the pressure sensor can with as shown in figure 5,
Fig. 5 is the structural schematic diagram of the calibrating installation of another pressure sensor disclosed by the embodiments of the present invention.Wherein：
Second determining module 304 is used for the pressing by pressure sensor detection for terminal screen in detection module 301
First pressure value is carried out according to predetermined target alignment parameter after the first pressure value of operation and in calibration module 302
Calibration is before obtaining second pressure value, to determine the mesh of above-mentioned pressing operation that detection module 301 detects in terminal screen
Mark pressing position point.
Acquisition module 305 from pressing position point and the correspondence of calibration parameter for obtaining the second determining module 304
The corresponding calibration parameter of target pressing position point determined.
First determining module 303 can be also used for the corresponding school of target pressing position point for getting acquisition module 305
Quasi- parameter is determined as above-mentioned target alignment parameter, so that the target school that calibration module 302 is determined according to the first determining module 303
The first pressure value for the pressing operation that quasi- parameter detects detection module 301 is calibrated.
In the optional embodiment, further optionally, detection module 301 can be also used in acquisition module
Obtained in 305 correspondence from pressing position point with calibration parameter the corresponding calibration parameter of above-mentioned target pressing position point it
Before, by 1 pressing position points in pressure sensor detection terminal screen under the test pressing operation of third pressure value
The 4th pressure value, and each pressing position o'clock is detected in 1 pressing position points in the 5th pressure by pressure sensor
The 6th pressure value under the test pressing operation of force value.
First determining module 303 can be also used for by the first difference of above-mentioned third pressure value and above-mentioned 5th pressure value with
The ratio of the 4th pressure value and the second difference of the 6th pressure value of the pressing position point of each pressing position point is determined as this
The calibration factor of pressing position point, and by the 4th difference of the third difference of each pressing position point and the pressing position point
Ratio is determined as the calibration offset of the pressing position point, and according to the calibration factor of each pressing position point and the pressing position
Calibration offset a little is set, determines the correspondence of pressing position point and calibration parameter, wherein the of each pressing position point
Three differences are equal to product and third pressure value and the pressing position of the 5th pressure value with the 4th pressure value of the pressing position point
The difference of the product of 6th pressure value of point, the 4th difference of each pressing position point are equal to the 4th pressure of the pressing position point
The difference of value and the 6th pressure value of the pressing position point.
Optionally, the test pressing operation of above-mentioned third pressure value and the test pressing operation of above-mentioned 5th pressure value can
Being applied on above-mentioned terminal screen by plane silica gel by normal pressure controller.
As another optional embodiment, on the architecture basics of the calibrating installation of pressure sensor shown in Fig. 3,
The calibrating installation of the pressure sensor can also include judgment module 306, at this point, the structure of the calibrating installation of the pressure sensor
Can with as shown in fig. 6, Fig. 6 be another pressure sensor disclosed by the embodiments of the present invention calibrating installation structural schematic diagram.
Wherein：
Judgment module 306 is used for the pressing operation by pressure sensor detection for terminal screen in detection module 301
First pressure value after and calibration module 302 according to predetermined target alignment parameter to first pressure value calibrated with
Before obtaining second pressure value, judge whether terminal screen is in horizontality, when the test results is yes, triggers calibration module
302, which execute the predetermined target alignment parameter of above-mentioned basis, calibrates first pressure value to obtain the behaviour of second pressure value
Make.
It is provided in the terminal of pressure membrane it should be noted that above-mentioned calibrating installation can also be mounted on, for realizing
The calibration of the pressure value for the pressing operation that pressure membrane is detected.
Implement the pressure that the embodiment of the present invention can detect pressure sensor automatically according to predetermined calibration parameter
Force value is calibrated, and without extraneous assisted calibration tool, is simplified calibration flow, is improved the usage experience of user.
It should be noted that in the above-described embodiments, all emphasizing particularly on different fields to the description of each embodiment, in some embodiment
The part being not described in may refer to the associated description of other embodiment.Secondly, those skilled in the art should also know
It knows, embodiment described in this description belongs to preferred embodiment, involved action and module and submodule and differs
Surely it is necessary to the present invention.
The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
Module and submodule in device of the embodiment of the present invention can be merged, divide and be deleted according to actual needs
Subtract.
Module and submodule described in the embodiment of the present invention can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, application-specific integrated circuit) it realizes.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The calibration method and device of a kind of pressure sensor disclosed by the embodiments of the present invention are described in detail above,
Principle and implementation of the present invention are described for specific example used herein, and the explanation of above example is only used
Understand the present invention and its core concept in help；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention,
There will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as to this
The limitation of invention.
Claims (13)
1. a kind of calibration method of pressure sensor, which is characterized in that the method includes：
By pressure sensor detection for the first pressure value of the pressing operation of terminal screen；
The first pressure value is calibrated to obtain second pressure value according to predetermined target alignment parameter；
The second pressure value is determined as the output pressure value that the pressure sensor is directed to the pressing operation.
2. according to the method described in claim 1, it is characterized in that, the target alignment parameter includes calibration factor and calibration
Offset；
It is described the first pressure value to be calibrated according to predetermined target alignment parameter to obtain second pressure value, packet
It includes：
Calculate the product of the calibration factor and the first pressure value；
By the product and the calibration offset and be determined as second pressure value.
3. according to the method described in claim 2, it is characterized in that, described be directed to terminal screen by pressure sensor detection
It is described that school is carried out to the first pressure value according to predetermined target alignment parameter after the first pressure value of pressing operation
With before obtaining second pressure value, the method further includes standard：
Determine target pressing position point of the pressing operation in the terminal screen；
The corresponding calibration parameter of the target pressing position point is obtained in correspondence from pressing position point with calibration parameter, and
The corresponding calibration parameter of the target pressing position point is determined as target alignment parameter.
4. according to the method described in claim 3, it is characterized in that, the correspondence from pressing position point and calibration parameter
It is middle obtain the corresponding calibration parameter of the target pressing position point before, the method further includes：
1 pressing position points are detected in the terminal screen in the test of third pressure value by the pressure sensor
The 4th pressure value under pressing operation；
By each pressing position o'clock in the pressure sensor detection at least four pressing positions point in the 5th pressure value
Test pressing operation under the 6th pressure value；
By the first difference of the third pressure value and the 5th pressure value and the described 4th of each pressing position point the
The ratio of pressure value and the second difference of the 6th pressure value of the pressing position point is determined as the calibration of the pressing position point
Coefficient；
The ratio of the third difference of each pressing position point and the 4th difference of the pressing position point is determined as the pressing
The calibration offset of location point, wherein the third difference of each pressing position point is pressed equal to the 5th pressure value with this
Press the 6th pressure value of the product and the third pressure value and the pressing position point of the 4th pressure value of location point
Product difference, the 4th difference of each pressing position point be equal to the 4th pressure value of the pressing position point with should
The difference of the 6th pressure value of pressing position point；
According to the calibration offset of the calibration factor of each pressing position point and the pressing position point, pressing position is determined
Set the correspondence a little with calibration parameter.
5. according to the method described in claim 4, it is characterized in that, the test pressing operation of the third pressure value and described
The test pressing operation of 5th pressure value is applied on the terminal screen by plane silica gel by normal pressure controller.
6. according to the method described in claim 1 to 5 any one, which is characterized in that described to detect needle by pressure sensor
After the first pressure value of the pressing operation of terminal screen, it is described according to predetermined target alignment parameter to described first
Pressure value is calibrated with before obtaining second pressure value, and the method further includes：
Judge whether the terminal screen is in horizontality；
When the terminal screen is in the horizontality, execute it is described according to predetermined target alignment parameter to described
First pressure value is calibrated to obtain the operation of second pressure value.
7. a kind of calibrating installation of pressure sensor, which is characterized in that described device includes detection module, calibration module and
One determining module, wherein：
The detection module, for the first pressure value by pressure sensor detection for the pressing operation of terminal screen；
The calibration module, for being calibrated the first pressure value to obtain according to predetermined target alignment parameter
Second pressure value；
First determining module is directed to the pressing operation for the second pressure value to be determined as the pressure sensor
Output pressure value.
8. device according to claim 7, which is characterized in that the target alignment parameter includes calibration factor and calibration
Offset；
The calibration module includes computational submodule and determination sub-module, wherein：
The computational submodule, the product for calculating the calibration factor and the first pressure value；
The determination sub-module, for by the product and the calibration offset and be determined as the second pressure value.
9. device according to claim 8, which is characterized in that described device further includes the second determining module and acquisition mould
Block, wherein：
Second determining module is directed to terminal screen for executing described detected by pressure sensor in the detection module
Pressing operation first pressure value operation after and the calibration module execute it is described according to predetermined target school
Before quasi- parameter is calibrated the operation to obtain second pressure value to the first pressure value, determine the pressing operation in institute
State the target pressing position point in terminal screen；
The acquisition module, for obtaining the target pressing position point from the correspondence of pressing position point and calibration parameter
Corresponding calibration parameter；
First determining module is additionally operable to the corresponding calibration parameter of the target pressing position point being determined as the target school
Quasi- parameter.
10. device according to claim 9, which is characterized in that the detection module is additionally operable to hold in the acquisition module
The corresponding calibration parameter of the target pressing position point is obtained in the row correspondence from pressing position point with calibration parameter
Operation before, 1 pressing position points are detected in the terminal screen in third pressure value by the pressure sensor
Test pressing operation under the 4th pressure value, and pass through the pressure sensor and detect at least four pressing positions point
In sixth pressure value of each pressing position o'clock under the test pressing operation of the 5th pressure value；
First determining module is additionally operable to the first difference of the third pressure value and the 5th pressure value and each institute
The ratio for stating the 4th pressure value and the second difference of the 6th pressure value of the pressing position point of pressing position point is true
It is set to the calibration factor of the pressing position point, and by the third difference of each pressing position point and the pressing position point
The ratio of 4th difference is determined as the calibration offset of the pressing position point, and according to the calibration system of each pressing position point
The calibration offset of number and the pressing position point, determines the correspondence of pressing position point and calibration parameter, wherein each
The third difference of the pressing position point is equal to multiplying for the 5th pressure value and the 4th pressure value of the pressing position point
The difference of product and the third pressure value and the product of the 6th pressure value of the pressing position point, each pressing position
4th difference of point is equal to the 4th pressure value of the pressing position point and the 6th pressure value of the pressing position point
Difference.
11. device according to claim 10, which is characterized in that the test pressing operation of the third pressure value and institute
The test pressing operation for stating the 5th pressure value is applied on the terminal screen by plane silica gel by normal pressure controller
's.
12. according to the device described in claim 7 to 11 any one, which is characterized in that described device further includes judgment module,
Wherein：
The judgment module, it is described by pressure sensor detection pressing for terminal screen for being executed in the detection module
It is executed after the operation of the first pressure value of press operation and in the calibration module described according to predetermined target alignment ginseng
It is several the operation to obtain second pressure value is calibrated to the first pressure value before, judge whether the terminal screen is in
It is described according to predetermined target alignment parameter to trigger the calibration module execution when judging result is to be for horizontality
The first pressure value is calibrated to obtain the operation of second pressure value.
13. a kind of computer read/write memory medium, which is characterized in that the computer read/write memory medium is stored with calculating
Machine program, the computer program can be executed by processor, to realize the method described in claim 1 to 6 any one.
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| CN201810066556.9A CN108287633B (en) | 2015-10-08 | 2015-10-08 | Calibration method and device of pressure sensor |
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| CN201810066556.9A CN108287633B (en) | 2015-10-08 | 2015-10-08 | Calibration method and device of pressure sensor |
| CN201510649978.5A CN105224132B (en) | 2015-10-08 | 2015-10-08 | The calibration method and device of a kind of pressure sensor |
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| CN106294042B (en) * | 2016-07-29 | 2019-08-30 | 深圳市中兴移动软件有限公司 | A kind of detection method and detection device |
| EP3321786A4 (en) * | 2016-09-17 | 2018-08-08 | Shenzhen Goodix Technology Co., Ltd. | Pressure detection method, touch control chip and pressure detection module |
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| CN112445357B (en) * | 2019-08-28 | 2022-06-14 | 北京钛方科技有限责任公司 | Calibration method, calibration device and storage medium |
| CN111142691B (en) * | 2019-12-31 | 2021-09-14 | 联想(北京)有限公司 | Data processing method and electronic equipment |
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Also Published As
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| CN105224132A (en) | 2016-01-06 |
| CN105224132B (en) | 2018-01-23 |
| CN108287633B (en) | 2021-06-01 |
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