CN111553097A - Drive signal acquisition method of motor of touch display device and terminal equipment - Google Patents
Drive signal acquisition method of motor of touch display device and terminal equipment Download PDFInfo
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- CN111553097A CN111553097A CN201911397708.4A CN201911397708A CN111553097A CN 111553097 A CN111553097 A CN 111553097A CN 201911397708 A CN201911397708 A CN 201911397708A CN 111553097 A CN111553097 A CN 111553097A
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- 230000008878 coupling Effects 0.000 claims abstract description 71
- 238000010168 coupling process Methods 0.000 claims abstract description 71
- 238000005859 coupling reaction Methods 0.000 claims abstract description 71
- 238000013461 design Methods 0.000 claims abstract description 49
- 230000001133 acceleration Effects 0.000 claims abstract description 38
- 230000004044 response Effects 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims description 13
- 238000004088 simulation Methods 0.000 claims description 10
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- 230000006872 improvement Effects 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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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
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/032—Reciprocating, oscillating or vibrating motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/06—Linear motors
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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
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/014—Force feedback applied to GUI
Abstract
The invention discloses a method for acquiring a driving signal of a motor of a touch display device and terminal equipment, wherein the method comprises the following steps: establishing a finite element coupling model of the touch display device with the linear vibration motor; detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement or not; when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain acceleration data of the touch display device along the vibration direction of the linear vibration motor; and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of computers, in particular to a method for acquiring a driving signal of a motor of a touch display device and terminal equipment.
[ background of the invention ]
Compared with a traditional eccentric rotor motor, the linear vibration motor has the advantages of high response speed, controllable vibration frequency and amplitude and the like, and the mainstream tactile feedback solution of the mobile terminal such as a mobile phone is adopted at present. However, the application technology in touch display devices such as automobiles is still immature, because the touch screen of some touch display devices has a complex structure and a large mass, the touch display devices need to be repeatedly disassembled and assembled for many times to continuously improve the frequency response characteristic of the structure until a proper motor driving signal is obtained, so that the linear vibration motor can generate enough vibration under the driving of the motor driving signal, and comfortable tactile feedback and vibration experience are brought to users.
However, since the touch display device is repeatedly assembled and disassembled many times, it is not only time consuming and inefficient, but also it is difficult to quickly find the location of the problem symptom.
Therefore, it is necessary to provide a method for acquiring a driving signal of a linear vibration motor to solve the above problems.
[ summary of the invention ]
The invention aims to disclose a method for acquiring a driving signal of a motor of a touch display device and terminal equipment.
The purpose of the invention is realized by adopting the following technical scheme, and the method for acquiring the driving signal of the motor of the touch display device comprises the following steps:
establishing a finite element coupling model of the touch display device with the linear vibration motor;
detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement or not;
when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain acceleration data of the touch display device along the vibration direction of the linear vibration motor;
and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data.
Preferably, the method further comprises:
and when the structural mechanical property of the finite element coupling model does not meet the design requirement, modifying the finite element coupling model.
Preferably, the detecting whether the structural mechanical property corresponding to the finite element coupling model meets a preset design requirement includes:
performing structural mechanical simulation on the finite element coupling model to obtain structural mechanical property parameters corresponding to the finite element coupling model; and judging whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement or not according to the structural mechanical property parameters.
Preferably, the structural mechanical property parameters include a stress distribution parameter and a structural deformation parameter, and the determining whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement through the structural mechanical property parameters includes:
judging whether the stress distribution parameters and the structural deformation parameters both meet the design requirements;
when the stress distribution parameters and the structural deformation parameters both meet the design requirements, judging that the structural mechanical properties corresponding to the finite element coupling model meet the design requirements;
and when any one of the stress distribution parameter and the structural deformation parameter does not meet the design requirement, judging that the structural mechanical property corresponding to the finite element coupling model does not meet the design requirement. Preferably, the acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data includes: searching a pending driving signal corresponding to the acceleration data in a driving signal database corresponding to the linear vibration motor according to the acceleration data;
detecting whether the vibration parameter corresponding to the undetermined driving signal meets a preset condition;
and when the vibration parameter corresponding to the undetermined driving signal meets the preset condition, outputting the undetermined driving signal and taking the undetermined driving signal as the driving signal corresponding to the linear vibration motor.
Preferably, the method further comprises:
when the vibration parameter corresponding to the undetermined driving signal does not meet the preset condition, adjusting the corresponding relation between the acceleration parameter and the undetermined driving signal in the driving signal database to update the driving signal database, and searching the undetermined driving signal corresponding to the acceleration data in the updated driving signal database again according to the acceleration data.
Preferably, the method further comprises:
and when the vibration parameters corresponding to the undetermined driving signals acquired from the updated driving signal database do not meet the preset conditions, modifying the finite element coupling model.
The present invention also provides a terminal device, including:
a memory for storing a driving signal acquiring program executable by the computer; and
and the processor is used for calling the drive signal acquisition program executable by the computer to execute the drive signal acquisition method.
Compared with the prior art, the method for acquiring the driving signal of the motor of the touch display device provided by the invention has the advantages that a finite element coupling model of the touch display device with the linear vibration motor is established; detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement or not; when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain acceleration data of the touch display device along the vibration direction of the linear vibration motor; and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data. According to the method, the finite element coupling model of the touch display device is established, so that the linear vibration motor driving signal installed on the touch display device can be rapidly and accurately obtained, even if the touch display device is in a design stage and no entity prototype exists, the frequency response characteristic of the touch display device and the motor driving signal can be predicted and evaluated through simulation to meet the expected vibration sensation requirement, and simulation guidance and feedback are provided for the structural design and improvement of the touch display device, so that the research and development process can be accelerated, and unnecessary research and development cost can be reduced.
[ description of the drawings ]
Fig. 1 is a flowchart illustrating a method for acquiring a driving signal of a motor of a touch display device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a finite element coupling model of a touch display device of a linear vibration motor;
FIG. 3 is a flowchart illustrating sub-steps of step S2 of FIG. 1;
FIG. 4 is a flowchart illustrating sub-steps of step S22 of FIG. 3;
FIG. 5 is a flowchart illustrating sub-steps of step S4 of FIG. 1;
fig. 6 is a block diagram of a terminal device according to an embodiment of the present application.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
It should be noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the above-described drawings 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.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a method for acquiring a driving signal of a motor of a touch display device and terminal equipment, wherein the method comprises the following steps: establishing a finite element coupling model of the touch display device with the linear vibration motor; detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement or not; when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain acceleration data of the touch display device along the vibration direction of the linear vibration motor; and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data.
According to the method, the finite element coupling model of the touch display device is established, so that the linear vibration motor driving signal installed on the touch display device can be rapidly and accurately obtained, even if the touch display device is in a design stage and no entity prototype exists, the frequency response characteristic of the touch display device and the motor driving signal can be predicted and evaluated through simulation to meet the expected vibration sensation requirement, and simulation guidance and feedback are provided for the structural design and improvement of the touch display device, so that the research and development process can be accelerated, and unnecessary research and development cost can be reduced.
Referring to fig. 1, fig. 1 is a method for obtaining a driving signal of a motor of a touch display device, the method including:
step S1: and establishing a finite element coupling model of the touch display device with the linear vibration motor.
Referring to fig. 2, models corresponding to the linear vibration motor and the touch display device are established to obtain a finite element coupling model of the touch display device with the linear vibration motor.
Illustratively, the finite element coupling model 10 includes a linear vibration motor equivalent model 20 and a touch display device finite element model 30. As can be seen from the working principle of the linear vibration motor, it can be equivalent by using a simple mathematical model, i.e. the equivalent model 20 of the linear vibration motor includes a lumped mechanical model 201 and an equivalent circuit model 202. That is, the finite element coupling model 10 includes the lumped mechanical model 201, the equivalent circuit model 201 and the touch display device finite element model 30 which are coupled to each other.
The lumped mechanical model 201 and the equivalent circuit model 202 are coupled by the vibrator speed v in the motor mechanical system and the current i in the motor magnetic circuit system.
The lumped mechanical model 201 is coupled with the touch display finite element model 30 through the spring force F in the electromechanical system and the displacement s in the touch display finite element model 30.
The equivalent circuit model 202 is coupled with the touch display device finite element model 30 through the current i in the motor magnetic circuit system and the speed v in the touch display device finite element model 30.
Step S2: and detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement.
Referring to fig. 3, in some embodiments, the detecting whether the structural mechanical property corresponding to the finite element coupling model meets a preset design requirement includes:
step S21: performing structural mechanical simulation on the finite element coupling model to obtain structural mechanical property parameters corresponding to the finite element coupling model;
step S22: and judging whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement or not according to the structural mechanical property parameters.
Referring to fig. 4, the determining whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement according to the structural mechanical property parameters, where the structural mechanical property parameters include a stress distribution parameter and a structural deformation parameter, includes:
step S221: judging whether the stress distribution parameters and the structural deformation parameters both meet the design requirements;
step S222: when the stress distribution parameters and the structural deformation parameters both meet the design requirements, judging that the structural mechanical properties corresponding to the finite element coupling model meet the design requirements;
step S223: and when any one of the stress distribution parameter and the structural deformation parameter does not meet the design requirement, judging that the structural mechanical property corresponding to the finite element coupling model does not meet the design requirement. The structural mechanical property parameters comprise stress distribution parameters and structural deformation parameters, and the structural mechanical property parameters corresponding to structural mechanical design are met in the process of carrying out structural mechanical simulation by the preset finite element coupling model.
The structural mechanical property parameters output by simulation are obtained by carrying out structural mechanical simulation on the newly established finite element coupling model, and the output structural mechanical property parameters are compared with the structural mechanical property parameters which are preset to meet the design requirements, so that whether the structural mechanical property corresponding to the current finite element coupling model meets the design requirements can be analyzed.
When the structural mechanical property of the finite element coupling model meets the design requirement, step S3 is executed.
Step S3: and when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain the acceleration data of the touch display device along the vibration direction of the linear vibration motor.
The acceleration data comprise a real part and an imaginary part of the acceleration, and the acceleration data in the vibration direction of the linear vibration motor of the touch display device can be acquired by performing frequency response analysis on the finite element coupling model.
Step S4: and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data.
Referring to fig. 5, the obtaining of the driving signal corresponding to the linear vibration motor according to the acceleration data includes:
step S41: searching a pending driving signal corresponding to the acceleration data in a driving signal database corresponding to the linear vibration motor according to the acceleration data;
step S42: detecting whether the vibration parameter corresponding to the undetermined driving signal meets a preset condition;
step S43: and when the vibration parameter corresponding to the undetermined driving signal meets the preset condition, outputting the undetermined driving signal and taking the undetermined driving signal as the driving signal corresponding to the linear vibration motor.
Illustratively, a corresponding relation between acceleration data of the corresponding touch display device along the vibration direction of the linear vibration motor and a driving signal corresponding to the linear vibration motor is stored in a driving signal database, a corresponding undetermined driving signal can be searched from the driving signal database by inputting the acceleration data of the corresponding touch display device along the vibration direction of the linear vibration motor, whether a vibration parameter corresponding to the undetermined driving signal meets a preset condition is detected, if the vibration parameter is amplitude, and the preset condition is that the amplitude exceeds a preset value, it is indicated that the current undetermined driving signal meets the condition, and the undetermined driving signal can be used as the driving signal corresponding to the linear vibration motor.
In some embodiments, the method further comprises:
step S44: when the vibration parameter corresponding to the undetermined driving signal does not meet the preset condition, adjusting the corresponding relation between the acceleration parameter and the undetermined driving signal in the driving signal database to update the driving signal database, and searching the undetermined driving signal corresponding to the acceleration data in the updated driving signal database again according to the acceleration data.
Illustratively, when vibration parameters corresponding to pending driving signals obtained by one-time search are not consistent, the corresponding relation between the acceleration parameters and the pending driving signals in the driving signal database is adjusted to update the driving signal database, and the pending driving signals corresponding to the acceleration data are searched in the updated driving signal database again according to the acceleration data.
In some embodiments, the method further comprises:
step S45: and when the vibration parameters corresponding to the undetermined driving signals acquired from the updated driving signal database do not meet the preset conditions, modifying the finite element coupling model.
For example, if the effect cannot be obtained by multiple searches, it indicates that the corresponding finite element coupling model is incorrect, and the structure needs to be adjusted, and the finite element coupling model is modified correspondingly.
As shown in fig. 1, in some embodiments, when the structural mechanical property of the finite element coupling model does not satisfy the design requirement, step S5 is executed.
Step S5: and when the structural mechanical property of the finite element coupling model does not meet the design requirement, modifying the finite element coupling model.
And if the structural mechanical property of the finite element coupling model does not meet the design requirement, indicating that the corresponding finite element coupling model is wrong and needs structural adjustment, and correspondingly modifying the finite element coupling model.
Referring to fig. 6, the present application further provides a terminal device 100, and the foregoing method may be executed by the terminal device 100. The terminal device 100 includes a memory 101 and a processor 102 communicatively coupled to the memory 101.
The memory 101 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 101 may in some embodiments be an internal memory of the terminal device 100, e.g. a hard disk of the terminal device 100. The memory 101 may also be an external storage device of the terminal device 100 in other embodiments, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device 100.
The memory 101 may be used not only to store application software installed in the terminal device 100 and various types of data, such as codes of a computer-readable program, but also to temporarily store data that has been output or will be output, that is, the first memory may be used as a storage medium storing a computer-executable drive signal acquisition program.
The processor 102 may be a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip in some embodiments, and the processor 102 may call the driving signal obtaining program stored in the memory 101 to execute the aforementioned driving signal obtaining method steps.
Illustratively, the terminal device is a computer or a server.
The present invention also provides a storage medium storing a computer-executable drive signal acquisition program that, when called by a computer, causes the computer to execute the aforementioned drive signal acquisition method.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A method for obtaining a driving signal of a motor of a touch display device is provided, and the method comprises the following steps:
establishing a finite element coupling model of the touch display device with the linear vibration motor;
detecting whether the structural mechanical property corresponding to the finite element coupling model meets the preset design requirement or not;
when the structural mechanical property of the finite element coupling model meets the design requirement, carrying out frequency response analysis on the finite element coupling model to obtain acceleration data of the touch display device along the vibration direction of the linear vibration motor;
and acquiring a driving signal corresponding to the linear vibration motor according to the acceleration data.
2. The method of claim 1, further comprising:
and when the structural mechanical property of the finite element coupling model does not meet the design requirement, modifying the finite element coupling model.
3. The method according to claim 1, wherein the detecting whether the structural mechanical property corresponding to the finite element coupling model meets a preset design requirement includes:
performing structural mechanical simulation on the finite element coupling model to obtain structural mechanical property parameters corresponding to the finite element coupling model; and judging whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement or not according to the structural mechanical property parameters.
4. The method of claim 3, wherein the structural mechanical property parameters include a stress distribution parameter and a structural deformation parameter, and the determining whether the structural mechanical property corresponding to the finite element coupling model meets the design requirement according to the structural mechanical property parameters comprises:
judging whether the stress distribution parameters and the structural deformation parameters both meet the design requirements;
when the stress distribution parameters and the structural deformation parameters both meet the design requirements, judging that the structural mechanical properties corresponding to the finite element coupling model meet the design requirements;
and when any one of the stress distribution parameter and the structural deformation parameter does not meet the design requirement, judging that the structural mechanical property corresponding to the finite element coupling model does not meet the design requirement.
5. The method of claim 1, wherein the obtaining a corresponding driving signal of the linear vibration motor according to the acceleration data comprises: searching a pending driving signal corresponding to the acceleration data in a driving signal database corresponding to the linear vibration motor according to the acceleration data;
detecting whether the vibration parameter corresponding to the undetermined driving signal meets a preset condition;
and when the vibration parameter corresponding to the undetermined driving signal meets the preset condition, outputting the undetermined driving signal and taking the undetermined driving signal as the driving signal corresponding to the linear vibration motor.
6. The method of claim 5, further comprising:
when the vibration parameter corresponding to the undetermined driving signal does not meet the preset condition, adjusting the corresponding relation between the acceleration parameter and the undetermined driving signal in the driving signal database to update the driving signal database, and searching the undetermined driving signal corresponding to the acceleration data in the updated driving signal database again according to the acceleration data.
7. The method of claim 6, further comprising:
and when the vibration parameters corresponding to the undetermined driving signals acquired from the updated driving signal database do not meet the preset conditions, modifying the finite element coupling model.
8. A terminal device, characterized in that the terminal device comprises:
a memory for storing a driving signal acquiring program executable by the computer; and
a processor for calling the computer-executable drive signal acquisition program to perform the drive signal acquisition method according to any one of claims 1 to 7.
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