CN110088716B - Method for determining target operation, pressure detection device and terminal equipment - Google Patents
Method for determining target operation, pressure detection device and terminal equipment Download PDFInfo
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- CN110088716B CN110088716B CN201780079328.9A CN201780079328A CN110088716B CN 110088716 B CN110088716 B CN 110088716B CN 201780079328 A CN201780079328 A CN 201780079328A CN 110088716 B CN110088716 B CN 110088716B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
Abstract
A method for determining a target operation, a pressure detection device and a terminal device are provided, which can reduce the space size of the pressure detection device and reduce the cost of the pressure detection device. The method for determining the target operation comprises the following steps: if the piezoelectric ceramic (101) receives the first pressure and generates a first deformation amount (401), the piezoelectric ceramic (101) generates a first voltage (402) according to the first deformation amount; the controller (102) determines a pressure value (403) of the first pressure according to the first voltage; the controller (102) determines a target operation (404) based on a pressure value of the first pressure and a first preset relationship.
Description
Technical Field
The present application relates to the field of terminal devices, and in particular, to a method for determining a target operation, a pressure detection apparatus, and a terminal device.
Background
Because the physical key has single function and needs to occupy a certain space, the key function can be enriched by introducing the pressure sensor. The pressure sensor can detect the pressing force applied to the key, and then different application programs are triggered according to different pressing force, so that different key functions can be realized by the same key according to different pressing force.
The existing scheme combines a pressure sensor and a linear motor, the pressure sensor detects the pressing force applied to a key and outputs different driving voltages to the linear motor according to different pressing force degrees, so that a spring vibrator in the linear motor generates force under the control of different driving voltages and transmits the force to the key.
In the prior art scheme, linear motor itself has the characteristics that the structure is complicated and the size is big, in addition, present scheme still needs extra pressure sensor, places pressure sensor and linear motor in the terminal equipment and needs great size space, consequently, the size space that present pressure sensor combines linear motor scheme to occupy is great, leads to the installation design degree of difficulty great.
Disclosure of Invention
The embodiment of the application provides a method for determining target operation, a pressure detection device and a terminal device, which can reduce the space size of the pressure detection device and reduce the cost of the pressure detection device.
In a first aspect, an embodiment of the present application provides a method for determining a target operation, where the method is applied to a pressure detection device, and the pressure detection device includes: the pressure detection method comprises the following steps of:
when the piezoelectric ceramic is subjected to external pressure and generates a first deformation quantity, a first voltage corresponding to the first deformation quantity is generated; the controller connected with the piezoelectric ceramic can determine the pressure value of the first pressure according to the first voltage; the controller determines a target operation according to the pressure value of the first pressure, wherein the target operation is a preset operation to be executed corresponding to the pressure value of the first pressure.
According to the technical scheme, the embodiment of the application has the following advantages:
according to the method for determining the target operation, the piezoelectric ceramic is acted by the first pressure, so that the piezoelectric ceramic generates the first deformation amount, the piezoelectric ceramic generates the first voltage, the piezoelectric ceramic outputs the first voltage to the controller, the controller detects the first voltage to obtain the pressure value of the first pressure, the first pressure can be understood as the external pressure applied to the piezoelectric ceramic, and finally the target operation is selected according to the first pressure. The pressure detection method does not need to assist devices such as a linear motor, only needs to use a special pressure sensor such as piezoelectric ceramics, and it needs to be noted that the pressure sensors are matched with corresponding controllers for use, which is no exception in the prior art. Therefore, the embodiment of the application can effectively reduce the space size of the pressure detection device and save the cost of the pressure detection device.
In one possible implementation, the controller determines the target operation according to a pressure value of the first pressure, including:
the controller determines a target operation according to a pressure value of the first pressure and a first preset relationship, wherein the first preset relationship is a one-to-one correspondence relationship between each first pressure range and each preset operation, the controller determines that the first pressure is in one first pressure range of each first pressure range according to the pressure value of the first pressure, and further determines an operation corresponding to the first pressure range to which the first pressure belongs in each preset operation as the target operation.
In a possible implementation manner, the method further includes:
the controller determines second voltages according to pressure values of the first pressure and a second preset relationship, the second preset relationship is a corresponding relationship between each second pressure range and each second voltage, the pressure value of the first pressure is in one of the second pressure ranges, and the second voltage is one of the second voltages.
In a possible implementation manner, the method further includes:
if the piezoelectric ceramic receives the second voltage output by the controller, the piezoelectric ceramic generates a second type of variable according to the second voltage.
In addition, it can be understood that the controller may not only detect the external pressure but also give feedback to the external pressure by the pressure detection means by detecting the first voltage generated by the piezoelectric ceramic due to the external pressure and feeding back the second voltage to the piezoelectric ceramic to cause the piezoelectric ceramic to generate the second deformation amount.
In one possible implementation, the pressure detection apparatus further includes: the fingerprint sensor is attached to the piezoelectric ceramic; the piezoelectric ceramic receives a first pressure to generate a first deformation quantity, and comprises:
the piezoelectric ceramic receives a first pressure and generates a first deformation amount based on a force applied to the fingerprint sensor.
Secondly, conduct the exogenic action through fingerprint sensor, not only can be with external pressure conduction to piezoceramics, can also realize fingerprint sensor's fingerprint verification function.
In a possible implementation manner, the pressure detection apparatus further includes a housing, the piezoelectric ceramic is attached to an inner side of the housing, the controller is located in the housing, and the piezoelectric ceramic receives the first pressure to generate a first deformation amount, including:
the piezoelectric ceramic receives a first pressure to generate a first deformation amount based on a force applied to the outside of the case.
In a second aspect, an embodiment of the present application provides a pressure detection apparatus, including:
the controller is connected with the piezoelectric ceramics;
the piezoelectric ceramic is used for receiving a first pressure and generating a first deformation quantity;
the piezoelectric ceramic generates a first voltage according to the first deformation;
the controller is used for determining a pressure value of the first pressure according to the first voltage;
the controller is further configured to determine a target operation according to the pressure value of the first pressure, where the target operation is a preset operation to be executed corresponding to the pressure value of the first pressure.
From above technical scheme, can see that the pressure measurement device in this application has following advantage:
the pressure detection device comprises the controller and the piezoelectric ceramics, so that the pressure detection method does not need to assist devices such as a linear motor, only needs to use a special pressure sensor such as the piezoelectric ceramics, and the pressure sensor needs to be matched with a corresponding controller for use, which is no exception in the prior art. Therefore, the embodiment of the application can effectively reduce the space size of the pressure detection device and save the cost of the pressure detection device.
In one possible implementation, the controller is specifically configured to:
and determining a target operation according to the pressure value of the first pressure and a first preset relationship, wherein the first preset relationship is a corresponding relationship between each first pressure range and each preset operation, the pressure value of the first pressure is in one first pressure range of the first pressure ranges, and the target operation is one operation of the preset operations.
In one possible implementation, the controller is further configured to perform the following steps:
and determining second voltages according to the pressure value of the first pressure and a second preset relationship, wherein the second preset relationship is a corresponding relationship between each second pressure range and each second voltage, the pressure value of the first pressure is in one of the second pressure ranges, and the second voltage is one of the second voltages.
In one possible implementation, the piezoelectric ceramic is further configured to perform the following steps:
a second shape variable is generated based on the second voltage.
In one possible implementation, the pressure detection apparatus includes: one surface of the fingerprint sensor is attached to the piezoelectric ceramic; piezoelectric ceramics are used in particular for:
receiving the first pressure generates the first deformation amount based on a force exerted on the fingerprint sensor.
In one possible implementation, the pressure detection apparatus further includes: the surface of the first shell is provided with a through hole, the fingerprint sensor is positioned in the through hole, and the piezoelectric ceramic and the controller are positioned in the first shell.
In one possible implementation, the pressure detection apparatus further includes: a second housing; the fingerprint sensor is located in the second shell, the other face of the fingerprint sensor is attached to the second shell, and the piezoelectric ceramic and the controller are located in the second shell.
In one possible implementation, the pressure detection apparatus further includes: the piezoelectric ceramic is attached to the inner side of the third shell, and the controller is located in the third shell;
the piezoelectric ceramics are particularly useful for: receiving the first pressure generates the first amount of deformation based on a force exerted on an outside of the housing.
In one possible implementation, the pressure detection apparatus further includes: the fourth shell is provided with a through hole, the key is attached to the piezoelectric ceramic and is arranged in the through hole, the piezoelectric ceramic is positioned in the fourth shell, and the controller is also positioned in the third shell;
the piezoelectric ceramics are particularly useful for: receiving the first pressure generates the first deformation amount based on a force applied to the key.
In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device includes: at least one pressure detection device as described in the second aspect and any one implementation manner of the second aspect.
In a fourth aspect, the present application provides a computer-readable storage medium for storing computer software instructions for the pressure detection apparatus, which when executed on a computer, enable the computer to perform the method for determining a target operation according to any one of the first aspect.
In a fifth aspect, embodiments of the present application provide a computer program product containing instructions, which when run on a computer, enable the computer to perform the method for determining a target operation according to any one of the first aspect.
In addition, the technical effects brought by any one of the design manners of the fourth aspect to the fifth aspect can be referred to the technical effects brought by different design manners of the first aspect, and are not described herein again.
Drawings
FIG. 1 is a system architecture framework diagram of a method of determining a target operation in an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a positive piezoelectric effect of a piezoelectric ceramic according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating a negative piezoelectric effect of a piezoelectric ceramic according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an embodiment of a method for determining a target operation in an embodiment of the present application;
FIG. 5 is a graph of the perception of different cells in skin tissue versus frequency and amplitude in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a pressure detecting device according to an embodiment of the present application;
FIG. 7 is a schematic structural diagram of another pressure detecting device in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a mobile phone terminal using four piezoelectric ceramics in the embodiment of the present application;
fig. 9 is a schematic diagram of an operation principle of the pressure detection device in the embodiment of the present application.
Detailed Description
The embodiment of the application provides a method for determining target operation, a pressure detection device and a terminal device, which can reduce the space size of the pressure detection device and reduce the cost of the pressure detection device.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of understanding, a system framework corresponding to the method for determining a target operation in the present application will be described below with reference to fig. 1. As shown in fig. 1, includes: piezoelectric ceramic 101 and controller 102, wherein controller 102 is connected to piezoelectric ceramic 101. As is well known, piezoelectric ceramics are functional ceramics having a piezoelectric effect, which is a phenomenon in which polarization (or an electric field) is induced by stress, or stress (or strain) is induced by an electric field, and is called a positive piezoelectric effect, and is called a negative piezoelectric effect, both of which are called piezoelectric effects. In addition, the piezoelectric ceramic has a positive piezoelectric effect as shown in fig. 2, and the piezoelectric ceramic itself vibrates due to an external force applied to the piezoelectric ceramic, and induces the piezoelectric ceramic to generate an electric field (or electric power), and the piezoelectric ceramic has a negative piezoelectric effect as shown in fig. 3, and applies an electric field (or electric power) to both surfaces of the piezoelectric ceramic, so that the piezoelectric ceramic is deformed (or vibrated) due to mutagenesis.
With the above system architecture in mind, the method for determining the target operation in the present application will be described with reference to specific embodiments, which are described below:
it should be noted that, the method for determining a target operation in the present application is applied to a pressure detection device, the pressure sensor includes a controller and a piezoelectric ceramic, as shown in fig. 4, and an embodiment of the method for determining a target operation in the present application includes:
401. the piezoelectric ceramic receives the first pressure and generates a first deformation quantity.
In this embodiment, the piezoelectric ceramic receives a first pressure applied to the piezoelectric ceramic from the outside, and then the piezoelectric ceramic generates a first deformation amount.
402. The piezoelectric ceramic generates a first voltage according to the first deformation amount.
In this embodiment, since the piezoelectric ceramic has a positive piezoelectric effect, the piezoelectric ceramic generates the first voltage according to the first deformation amount, and in the positive piezoelectric effect, the first deformation amount and the first voltage have a positive correlation, in short, the larger the first deformation amount is, the larger the first voltage generated by the piezoelectric ceramic is, the smaller the first deformation amount is, the smaller the first voltage generated by the piezoelectric ceramic is, and the piezoelectric ceramic outputs the first voltage to the controller, or the controller detects the first voltage generated by the piezoelectric ceramic.
Optionally, in a specific embodiment, the pressure detection apparatus further includes a fingerprint sensor, the fingerprint sensor is attached to the piezoelectric ceramic, and the piezoelectric ceramic generates a first deformation amount while pressing the fingerprint sensor, so as to generate the first voltage.
Optionally, in another specific embodiment, the pressure detection apparatus further includes a housing, the piezoelectric ceramic is attached to the inside of the housing, and the controller is also located inside the housing, and when the housing and the attached portion of the piezoelectric ceramic are pressed from the outside of the housing, the piezoelectric ceramic generates a first deformation amount, so as to generate the first voltage.
Optionally, in a further specific embodiment, the pressure detection device further comprises a fingerprint sensor and a housing, when the following two conditions exist:
firstly, a shell covers a fingerprint sensor and piezoelectric ceramics, specifically, one surface of the fingerprint sensor is attached to the inner side of the shell, the other surface of the fingerprint sensor is attached to the piezoelectric ceramics, a controller, the fingerprint sensor and the piezoelectric ceramics are all located on the inner side of the shell, and when the attached part of the shell and the fingerprint sensor is pressed from the outer side of the shell, the piezoelectric ceramics can generate a first deformation quantity, so that a first voltage is generated;
the second, the through-hole is seted up on the casing surface, and fingerprint sensor arranges in the through-hole and the surface exposes in the casing, and is concrete, and fingerprint sensor and piezoceramics laminate mutually, and at this moment, the fingerprint sensor in pressing the through-hole can make piezoceramics produce first deformation volume to generate first voltage.
The material of the housing may be glass or metal, and the present application is not limited in any way.
403. The controller determines a pressure value of the first pressure according to the first voltage.
In this embodiment, the piezoelectric ceramic outputs the first voltage generated by the piezoelectric ceramic to the controller, and the controller receives the first voltage, and obtains a pressure value of a first pressure according to the formula (1) and the first voltage, where the first pressure is a pressure that is directly or indirectly applied to the piezoelectric ceramic from the outside. The first voltage and the pressure value of the first pressure have positive correlation, and the specific relationship is shown as the following formula:
wherein U is a first voltage, h is the thickness of the piezoelectric ceramic, A is the stress area of the piezoelectric ceramic, F is a first pressure, g33The piezoelectric voltage constants are different for different piezoelectric ceramics.
From the above formula, it can be seen that the larger the first voltage is, the larger the pressure value of the detected first pressure is, and the smaller the first voltage is, the smaller the pressure value of the detected first pressure is.
404. The controller determines a target operation according to a pressure value of the first pressure.
In this embodiment, the controller determines a target operation according to the pressure value of the first pressure, where the target operation is an operation to be performed that is preset according to the pressure value of the first pressure.
Optionally, the controller determines the target operation according to the pressure value of the first pressure and a first preset relationship, where the first preset relationship is a one-to-one correspondence relationship between each first pressure range and each preset operation, and the controller determines, according to the first preset relationship, the preset operation corresponding to one first pressure range to which the pressure value of the first pressure belongs as the target operation.
It can be understood that the controller may determine, according to the pressure value of the first pressure, a pressure range to which the pressure value of the first pressure belongs, and determine, according to the first preset relationship, a preset operation corresponding to the pressure value of the first pressure as a target operation, in other words, the controller may determine different target operations according to different pressure values of the first pressure, and therefore, the present application may implement different operations according to different pressing force degrees.
For example, the pressure detection device is arranged in a mobile phone or wearable equipment, and the pressure range can be simply divided into a first pressure range and a second pressure range, wherein the first pressure range is F1 and F2, the second pressure range is F2 and F3, and F is the pressure value of the obtained first pressure. Suppose that the first pressure range is light press and the second pressure range is heavy press. The target operation corresponding to the first pressure range may be, for example, returning to the previous interface, and the target operation corresponding to the second pressure range may be, for example, returning to the main interface. When a first pressure is applied to the piezoelectric ceramic, the piezoelectric ceramic generates a first deformation amount and generates a first voltage according to the first deformation amount, at this time, the controller can obtain a pressure value F of the first pressure according to the first voltage, and if F is within a first pressure range, the controller executes an operation of returning to the previous interface; if F is in pressure range two, the controller performs an operation to return to the main interface.
It should be noted that, the specific pressure range of the first pressure range and the second pressure range may be set according to an actual application scenario, and the application is not limited at all. The pressure ranges can be divided into two pressure ranges, and more pressure ranges can be subdivided according to actual needs, so that the pressure values in different pressure ranges correspond to different target operations, the operation is more diversified, and the operation is not limited herein.
405. The controller determines a second voltage according to the pressure value of the first pressure and a second preset relation.
The second preset relationship is a corresponding relationship between each second pressure range and each second voltage, the frequency and amplitude of each second voltage are different, and each second pressure range in the second preset relationship may be the same as or different from each first pressure range in the first preset relationship.
After the controller determines the pressure value of the first pressure, a second voltage corresponding to a second pressure range to which the pressure value of the first pressure belongs is determined according to a second preset relation.
It is well known that human skin tissue consists of stratum corneum, stratum lucidum, etc., and that different layers are subdivided into different cells.
As shown in FIG. 5, curve 1 is the perceived frequency and amplitude of the Merck cell complex in skin tissue; curve 2 is the frequency and amplitude that meissner bodies in skin tissue can perceive; curve 3 is the frequency and amplitude that the brazilian corpuscles in the skin tissue can perceive; curve 4 is the frequency and amplitude that the ruffini corpuscles in the skin tissue can perceive; the four cells have different distributions (including depths) in human skin tissue, so vibrations of different frequencies and different amplitudes are perceived differently by humans.
The second preset relationship may be set according to the relationship between the frequency and the amplitude shown in fig. 5, so that the frequency and the amplitude of the second voltage correspond to the frequency and the amplitude shown in fig. 5, that is, according to the second voltage, the piezoelectric ceramic may generate vibration feedback that may be perceived by a user.
In addition, in some practical application scenarios, the second preset relationship may also be a corresponding relationship between each second pressure range and each second voltage group, and the controller may determine, according to the second preset relationship, one second voltage group corresponding to one second pressure range to which the pressure value of the first pressure belongs, that is, determine a plurality of second voltages with different frequencies and amplitudes, for example: the controller may generate a second voltage with frequency f and amplitude a, a voltage with frequency f/2 and amplitude a/2, and a voltage with frequency f/4 and amplitude a/4, and then the controller outputs all the three second voltages to the piezoelectric ceramic, thereby implementing multi-level feedback for user pressing.
It should be noted that the execution order of step 405 and step 404 is not limited.
406. The piezoelectric ceramic generates a second type variable according to the second voltage.
In this embodiment, the controller outputs the second voltage to the piezoelectric ceramic, and the piezoelectric ceramic generates the second variable according to the second voltage due to the negative piezoelectric effect, so that a user's finger or other parts pressed on the surface of the piezoelectric ceramic can feel the vibration feedback of the piezoelectric ceramic.
Alternatively, the first voltage is greater than the second voltage, and the second deformation amount of the piezoelectric ceramic generated according to the second voltage is smaller than the first deformation amount of the piezoelectric ceramic generated by receiving the first pressure, as can be seen from the characteristics of the piezoelectric ceramic.
It can be understood that, if a user applies a first pressure to the piezoelectric ceramic through a finger, the piezoelectric ceramic generates a first deformation amount, the controller determines the magnitude of the first pressure according to the first deformation amount and determines a second voltage, and the piezoelectric ceramic generates a second deformation amount according to the second voltage and feeds back the second deformation amount to the finger of the user, the user will feel a feedback vibration of the self-applied pressure.
The pressure detection method does not need to assist devices such as a linear motor, only needs to use a special pressure sensor such as piezoelectric ceramics, and it needs to be noted that the pressure sensors are matched with corresponding controllers for use, which is no exception in the prior art. Therefore, the embodiment of the application can effectively reduce the space size of the pressure detection device and save the cost of the pressure detection device.
The above-described embodiment describes in detail a method of determining a target operation in the present application, and the pressure detection apparatus in the present application will be described below.
In another embodiment, as shown in fig. 1, an embodiment of a pressure detecting device in the present application includes:
piezoelectric ceramic 101 and controller 102, and the connection mode between controller 102 and piezoelectric ceramic 101 is shown in fig. 1;
the piezoelectric ceramic 101 is used for receiving a first pressure, generating a first deformation amount and generating a first voltage according to the first deformation amount, wherein the first voltage and the first deformation amount have a positive correlation;
and a controller 102 configured to obtain a pressure value of the first pressure according to the first voltage, and determine a target operation according to the pressure value of the first pressure, where the target operation is an operation to be performed and is preset according to the pressure value of the first pressure.
Optionally, in one possible design, the controller 102 is specifically configured to: and determining a target operation according to the pressure value of the first pressure and a first preset relationship, wherein the first preset relationship is a corresponding relationship between each first pressure range and each preset operation, the pressure value of the first pressure is within one first pressure range of the first pressure ranges, and the target operation is one operation of the preset operations.
Optionally, in one possible design, the controller 102 is further configured to: detecting the first voltage to obtain a pressure value of the first pressure, and determining a second voltage by the controller according to the pressure value of the first pressure and a second preset relationship, wherein the second preset relationship is a corresponding relationship between each second pressure range and each second voltage; and outputs a second voltage to the piezoelectric ceramic 101.
Optionally, in one possible design, piezoelectric ceramic 101 is further used to: when the piezoelectric ceramic 101 receives the second voltage output by the controller 102, a second variable is generated according to the second voltage, and the second voltage and the second variable have a positive correlation.
In the second embodiment, the pressure detection device detects the first voltage output by the piezoelectric ceramic 101 through the controller 102 to obtain the first pressure, and the controller 102 determines the target operation according to the first pressure and the first preset relationship, it can be understood that if the person presses the piezoelectric ceramic 101 in the pressure detection device with a finger, the controller 102 may determine different target operations according to different pressing force degrees of the person, for example, re-pressing the corresponding target operation: returning to the main interface; lightly pressing a corresponding target in a screen locking state: and (4) unlocking. Therefore, the pressure detection device in the present application can effectively realize the method of determining the target operation, and the use of the piezoelectric ceramic as the detection element can effectively reduce the volume of the pressure detection device, and at the same time, the cost can be effectively saved without other additional devices such as a linear motor.
Optionally, as shown in fig. 6, the pressure detection apparatus in the present application further includes: glass cover 601, fingerprint sensor 603 and cell-phone casing 604, glass cover 601 for example can be the cell-phone casing 604 upper flank, and fingerprint sensor 603 one side is laminated with glass cover 601, and fingerprint sensor 603 another side is laminated with piezoceramics 602, and fingerprint sensor 603 is located the cell-phone casing 604 with piezoceramics 602 inside to fingerprint sensor 603 is covered by cell-phone casing 604 with piezoceramics 602.
Alternatively, as shown in fig. 7, a through hole is formed in the glass cover 601, and the fingerprint sensor 603 is disposed in the through hole, so that the fingerprint sensor 603 is exposed on the glass cover 601.
It should be noted that the glass cover 601 on the upper side of the mobile phone housing 604 may also be made of other materials, such as metal, and the application is not limited thereto.
It should be noted that the fingerprint sensor 603 is used for a sensor performing a fingerprint verification function, and may be replaced by another sensor having a similar function, which is not limited in this application.
Optionally, in a possible design, the pressure detection apparatus further includes: the casing, piezoceramics and the inboard laminating of casing, the controller is placed in the casing to the casing covers piezoceramics, and at this moment, based on the power of exerting on the casing outside, piezoceramics receives first pressure and produces first deformation volume.
Optionally, in a possible design, the pressure detection apparatus further includes: casing and button, there is the through-hole on the casing, button and piezoceramics laminating to when making to press the button, piezoceramics is also pressed and is produced first deformation, then places the button in the through-hole, makes the button expose in housing face and piezoceramics places in inside the casing, and in addition, the controller also is located inside the casing, and at this moment, based on the power of exerting on the button, piezoceramics receives first pressure and produces first deformation.
Fig. 8 is a schematic structural diagram of a mobile phone terminal using four piezoelectric ceramics, where the piezoelectric ceramics on the upper right edge are used to form a volume key on the mobile phone terminal; the three piezoelectric ceramics on the lower edge are used for forming three function keys on the mobile phone terminal. It should be noted that the pressure detection device in the present application may be used not only in a mobile phone terminal, but also in other terminal devices such as wearable devices; in addition, one terminal device may include at least one piezoelectric ceramic, and the setting may be performed according to an actual application scenario, which is not limited in this application.
It should be noted that, as shown in fig. 9, a schematic diagram of a working principle of the pressure detection apparatus is shown, and related operations and beneficial effects executed by the pressure detection apparatus are similar to those described in the first embodiment, and refer to the related description in the first embodiment, which is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (14)
1. A method of determining a target operation, the method being applied to a pressure detection device comprising: a controller and a piezoelectric ceramic, wherein the controller is coupled to the piezoelectric ceramic, wherein the method comprises:
the piezoelectric ceramic receives a first pressure and generates a first deformation quantity;
the piezoelectric ceramic generates a first voltage according to the first deformation;
the controller determines a pressure value of the first pressure according to the first voltage;
the controller determines a target operation according to the pressure value of the first pressure, wherein the target operation is a preset operation to be executed corresponding to the pressure value of the first pressure;
the controller determines a second voltage group according to a pressure value of the first pressure and a second preset relationship, the second preset relationship is a corresponding relationship between each second pressure range and each second voltage group, the pressure value of the first pressure is in one of the second pressure ranges, the second voltage group comprises a plurality of second voltages with different frequencies and amplitudes, and the frequency and the amplitude of the second voltage are determined according to an attenuation rule;
the piezoelectric ceramics sequentially generate a second type variable corresponding to a second voltage according to the second voltage in the second voltage group;
wherein the second shape variable corresponding to the second voltage of different frequency and amplitude is different.
2. The method of determining a target operation of claim 1, wherein the controller determining a target operation based on the pressure value of the first pressure comprises:
the controller determines a target operation according to the pressure value of the first pressure and a first preset relationship, wherein the first preset relationship is a corresponding relationship between each first pressure range and each preset operation, the pressure value of the first pressure is in one first pressure range of the first pressure ranges, and the target operation is one operation of the preset operations.
3. The method of determining a target operation of claim 1 or 2, the pressure detection device further comprising: the fingerprint sensor is attached to the piezoelectric ceramic;
the piezoelectric ceramic receives a first pressure and generates a first deformation quantity, and comprises:
the piezoelectric ceramic receives the first pressure to generate the first deformation amount based on a force applied to the fingerprint sensor.
4. The method of determining a target operation of claim 1 or 2, wherein the pressure detection device further comprises a housing, the piezoelectric ceramic is attached to an inner side of the housing, the controller is located in the housing, the piezoelectric ceramic receives the first pressure and generates a first deformation amount, and the method comprises:
the piezoelectric ceramic receives the first pressure to generate the first deformation amount based on a force applied to the outside of the housing.
5. A pressure detection device, comprising:
the controller is connected with the piezoelectric ceramics;
the piezoelectric ceramic is used for receiving a first pressure, generating a first deformation quantity and generating a first voltage according to the first deformation quantity;
the controller is used for determining a pressure value of the first pressure according to the first voltage, and determining a target operation according to the pressure value of the first pressure, wherein the target operation is a preset operation to be executed corresponding to the pressure value of the first pressure; the voltage control circuit is further configured to determine a second voltage group according to a pressure value of the first pressure and a second preset relationship, where the second preset relationship is a corresponding relationship between each second pressure range and each second voltage group, the pressure value of the first pressure is within one of the second pressure ranges, the second voltage group includes a plurality of second voltages with different frequencies and amplitudes, and the frequency and the amplitude of the second voltage are determined according to an attenuation rule;
the piezoelectric ceramics are also used for sequentially generating a second type variable according to a second voltage in the second voltage group;
wherein the second shape variable corresponding to the second voltage of different frequency and amplitude is different.
6. The pressure detection apparatus of claim 5, wherein the controller is specifically configured to:
and determining a target operation according to the pressure value of the first pressure and a first preset relationship, wherein the first preset relationship is a corresponding relationship between each first pressure range and each preset operation, the pressure value of the first pressure is in one first pressure range of the first pressure ranges, and the target operation is one operation of the preset operations.
7. The pressure detection apparatus according to claim 5 or 6, characterized by further comprising: one surface of the fingerprint sensor is attached to the piezoelectric ceramic;
the piezoelectric ceramics are particularly useful for: receiving the first pressure and generating the first deformation amount based on a force exerted on the fingerprint sensor.
8. The pressure detection apparatus according to claim 7, further comprising: the surface of the first shell is provided with a through hole, the fingerprint sensor is positioned in the through hole, and the piezoelectric ceramic and the controller are positioned in the first shell.
9. The pressure detection apparatus according to claim 7, further comprising: a second housing; the fingerprint sensor is located in the second shell, the other face of the fingerprint sensor is attached to the second shell, and the piezoelectric ceramic and the controller are located in the second shell.
10. The pressure detection apparatus according to claim 5, characterized by further comprising: the piezoelectric ceramic is attached to the inner side of the third shell, and the controller is located in the third shell; the piezoelectric ceramics are particularly useful for: receiving the first pressure and generating the first deformation amount based on a force exerted on an outside of the housing.
11. The pressure detection apparatus according to claim 5, characterized by further comprising: the fourth shell is provided with a through hole, the key is attached to the piezoelectric ceramic and is arranged in the through hole, and the piezoelectric ceramic and the controller are positioned in the fourth shell; the piezoelectric ceramics are particularly useful for: receiving the first pressure and generating the first deformation amount based on the force applied to the key.
12. A terminal device, comprising: at least one pressure detection device according to any one of the preceding claims 5 to 11.
13. A computer program product enabling a computer to perform the method of determining a target operation according to any one of the preceding claims 1 to 4 when the computer program product runs on the computer.
14. A computer-readable storage medium for storing computer software instructions for a pressure sensing device, the computer-readable storage medium, when executed on a computer, causing the computer to perform the method of determining a target operation of any of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110189680.6A CN113050824B (en) | 2017-08-10 | 2017-08-10 | Method for determining target operation, pressure detection device and terminal equipment |
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| PCT/CN2017/096754 WO2019028724A1 (en) | 2017-08-10 | 2017-08-10 | Target operation determining method, pressure detection apparatus, and terminal device |
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| CN113050824A (en) * | 2017-08-10 | 2021-06-29 | 荣耀终端有限公司 | Method for determining target operation, pressure detection device and terminal equipment |
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Also Published As
| Publication number | Publication date |
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| CN110088716A (en) | 2019-08-02 |
| WO2019028724A1 (en) | 2019-02-14 |
| CN113050824B (en) | 2022-05-31 |
| CN113050824A (en) | 2021-06-29 |
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