CN112013952A - Vibration control method, tactile feedback device for vibration motor, and terminal device - Google Patents
Vibration control method, tactile feedback device for vibration motor, and terminal device Download PDFInfo
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- CN112013952A CN112013952A CN202011106504.3A CN202011106504A CN112013952A CN 112013952 A CN112013952 A CN 112013952A CN 202011106504 A CN202011106504 A CN 202011106504A CN 112013952 A CN112013952 A CN 112013952A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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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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Abstract
The invention discloses a vibration control method, a touch sense reproduction device of a vibration motor and a terminal device, wherein the vibration control method is applied to the touch sense reproduction device of the vibration motor and comprises the following steps: acquiring a vibration waveform to be output; converting the vibration waveform to be output according to vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal; the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the vibration feedback information is obtained after the vibration motor vibrates according to the motor driving signal. The invention combines the vibration feedback information of the vibration motor when converting the vibration waveform to be output into the motor driving signal, so that the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the accuracy of the vibration waveform output by the vibration motor is improved.
Description
Technical Field
The invention relates to the field of intelligent control, in particular to a vibration control method, touch replay equipment of a vibration motor and terminal equipment.
Background
The terminal equipment is often provided with a vibration motor to drive the terminal equipment so as to prompt a user, the vibration motor is generally driven by preset vibration waves when the vibration motor is controlled, and the vibration waves cannot be restored by the vibration motor according to the vibration generated by the vibration waves finally due to different characteristics of each motor, so that the output of the vibration waves is not accurate enough.
Disclosure of Invention
The invention mainly aims to provide a vibration control method, a touch reproducing device of a vibration motor and a terminal device, aiming to improve the accuracy of the vibration wave output by the vibration motor.
To achieve the above object, the present invention provides a vibration control method applied to a haptic playback apparatus of a vibration motor, comprising:
acquiring a vibration waveform to be output;
converting the vibration waveform to be output according to vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal;
the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the vibration feedback information is obtained after the vibration motor vibrates according to the motor driving signal.
Optionally, the vibration waveform to be output is an envelope waveform of vibration intensity;
or, the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output includes:
converting the vibration waveform to be output into an envelope waveform of vibration intensity;
and converting the envelope waveform according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output.
Optionally, the vibration strength includes at least one of vibration force, vibration displacement, vibration velocity, vibration acceleration, and vibration momentum.
Optionally, the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal includes:
and obtaining the motor driving signal matched with the vibration waveform to be output according to the vibration feedback information, the vibration waveform to be output and a preset conversion model so as to drive the vibration motor to vibrate according to the motor driving signal.
Optionally, the vibration control method further comprises:
and updating the conversion parameters of the conversion model according to the vibration feedback information.
Optionally, the step of updating the conversion parameter of the conversion model according to the vibration feedback information includes:
updating the conversion parameters of the conversion model according to the vibration feedback information when the touch sense playback equipment of the vibration motor is started;
or when the vibration feedback information is detected, updating the conversion parameters of the conversion model according to the vibration feedback information;
or updating the conversion parameters of the conversion model according to the vibration feedback information in a preset time interval at intervals of a preset time interval.
Optionally, the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal includes:
obtaining a target driving signal according to the vibration waveform to be output and a preset conversion model;
and adjusting the target driving signal according to the vibration feedback information to obtain the motor driving signal so as to drive the vibration motor to vibrate according to the motor driving signal.
Optionally, the vibration feedback information includes at least one of a counter electromotive force, a current, a vibration force, a vibration displacement, a vibration velocity, a vibration acceleration, and a vibration momentum of the vibration motor.
Further, to achieve the above object, the present invention also proposes a haptic playback apparatus of a vibration motor, the haptic playback apparatus including:
a memory storing a vibration control program;
a processor, the vibration control program in the memory implementing the vibration control method as described above when executed by the processor;
a vibration motor;
the motor driver receives the motor driving signal output by the processor, amplifies the motor driving signal and drives the vibration motor to vibrate;
and the detection device is connected with the processor and used for detecting the vibration feedback information of the vibration motor.
Optionally, the vibration motor is a linear resonant motor.
Furthermore, in order to achieve the above object, the present invention also proposes a terminal device characterized in that the terminal device includes the haptic playback device of the vibration motor as described above.
The vibration control method, the touch playback equipment of the vibration motor and the terminal equipment provided by the invention have the advantages that the vibration waveform to be output is obtained, the vibration waveform to be output is converted according to the vibration feedback information of the vibration motor to obtain the matched motor driving signal, the vibration motor is driven to vibrate according to the motor driving signal, and the obtained motor driving signal is more consistent with the characteristics of the vibration motor due to the fact that the vibration feedback information of the vibration motor is combined when the vibration waveform to be output is converted into the motor driving signal, so that the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the accuracy of the vibration wave output by the vibration motor is improved.
Drawings
Fig. 1 is a schematic diagram of a hardware architecture of a haptic playback device of a vibration motor to which a vibration control method of the present invention relates;
FIG. 2 is a schematic flow chart of a first exemplary embodiment of a vibration control method of the present invention;
FIG. 3 is a diagram illustrating a vibration waveform to be output by taking a vibration acceleration envelope as an example;
FIG. 4 is a schematic flow chart of a second exemplary embodiment of a vibration control method of the present invention;
FIG. 5 is a schematic flow chart of a third exemplary embodiment of a vibration control method of the present invention;
fig. 6 is a flowchart illustrating a fourth exemplary embodiment of the vibration control method according to the present invention.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware architecture of a haptic playback device of a vibration motor related to the vibration control method of the present invention.
As shown in fig. 1, the haptic playback device of the vibration motor according to the present embodiment may be applied to a terminal device that requires a vibration output, where the terminal device may be a wearable device, such as an earphone, glasses, and a VR device, or a mobile terminal, such as a mobile phone, or other electronic devices.
The terminal device in the present embodiment includes a memory 110 that stores a vibration control program; the processor 120 receives the vibration feedback information returned by the detection device 150, and calls and executes the vibration control program in the memory according to the vibration feedback information to generate a motor driving signal; a vibration motor 140; the motor driver 130 receives the motor driving signal output by the processor, amplifies the motor driving signal and drives the vibration motor to vibrate; and the detection device 150 is connected with the processor and is used for detecting the vibration feedback information of the vibration motor.
The vibration motor in this embodiment may be a linear resonance motor, or may be a coil driving motor, a driver driven by an electromagnetic principle, or a piezoelectric transducer. It is understood that the vibration feedback information may be detected by the detecting device 150, the detecting device 150 is connected to the processor 120, the vibration feedback information may include at least one of a counter electromotive force, a current, a vibration force, a vibration displacement, a vibration speed, a vibration acceleration, and a vibration momentum of the motor, and the corresponding detecting device 150 may be a feedback detecting circuit, a position sensor, an acceleration sensor, and a displacement sensor, and the vibration momentum is a product of the vibration speed and a mass of the vibration motor.
The memory 110 and the processor 120 in this embodiment may be integrated in the same chip, and in this embodiment, the amplification parameter of the motor driver 130 is matched with the vibration motor 140, so that the energy of the amplified motor driving signal output by the motor driver 130 is matched with the vibration motor 140.
In this embodiment, the vibration waveform to be output may be stored in the memory 110, or may be input through an external device, where the external device may input the vibration waveform to be output through a communication interface, for example, through an infrared mode, a bluetooth mode, an RS485 mode, or a WIFI mode, or may input the vibration waveform to be output through an analog signal mode, for example, through an electrical signal mode, a sound signal mode, or an optical signal mode.
In order to detect the vibration feedback information of the vibration motor 140, the detection device 150 may be disposed in a housing of the vibration motor or a casing of the vibration motor, or may be disposed on a terminal device where the vibration motor 140 is located.
The vibration control program in the memory 110, when executed by the processor 120, implements the steps of:
acquiring a vibration waveform to be output;
converting the vibration waveform to be output according to vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal;
the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the vibration feedback information is obtained after the vibration motor vibrates according to the motor driving signal.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first exemplary embodiment of a vibration control method according to the present invention, in this embodiment, the vibration control method includes:
step S10, obtaining a vibration waveform to be output;
step S20, converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal; the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the vibration feedback information is obtained after the vibration motor vibrates according to the motor driving signal.
The vibration feedback information in the embodiment includes at least one of counter electromotive force, current, vibration force, vibration displacement, vibration speed, vibration acceleration and vibration momentum of the motor, the counter electromotive force and the current are generated when the vibration motor vibrates, the vibration force, the vibration displacement, the vibration speed, the vibration acceleration and the vibration momentum can be detected by a detection device, and the detection device can be installed inside a vibration motor shell or on a terminal device where the vibration motor is located; the detection device can comprise at least one of a feedback detection circuit, a displacement sensor and an acceleration sensor, the counter electromotive force and the current can be detected by the feedback detection circuit, the vibration displacement can be detected by the displacement sensor, the vibration speed can be obtained by combining data detected by the displacement sensor with time conversion, the vibration acceleration can be detected by the acceleration sensor, and the momentum can be obtained by converting displacement data detected by the displacement sensor.
The motor driving signal in this embodiment is a waveform in which voltage changes with time, and actually converts the amplitude of the vibration intensity in the vibration waveform to be output into a voltage value.
In the embodiment, the amplitude, the frequency and the variation trend of the motor driving signal are adjusted according to the vibration feedback information of the vibration motor and the vibration waveform to be output; after the vibration motor is driven to vibrate by adopting the motor driving signal, the output of the vibration motor can restore the vibration waveform to be output; for example, when the vibration waveform to be output is an envelope waveform of vibration intensity, after the motor driving signal is adjusted, the envelope of the vibration intensity of the vibration motor is consistent with the vibration waveform to be output; or, when the waveform to be output is a waveform in which the vibration intensity changes with time, after the motor driving signal is adjusted, the envelope of the vibration intensity of the vibration motor is consistent with the envelope of the waveform to be output.
In this embodiment, the motor driving signal is adjusted in real time, for example, when the vibration waveform to be output is an envelope waveform of vibration intensity, an envelope of vibration intensity corresponding to each time point may be obtained according to the vibration waveform to be output, and a voltage corresponding to the time point is generated according to the envelope of vibration intensity at the current time point and the vibration feedback information, so as to serve as the motor driving signal; or, the vibration waveform to be output is a waveform of which the vibration intensity changes along with time, the vibration waveform to be output can be converted into an envelope waveform of the vibration intensity, and after the envelope waveform is converted, a motor driving signal is obtained according to the mode; because each time point obtains the vibration driving signal according to the envelope of the vibration intensity and the vibration feedback information, the real-time adjustment of the motor driving signal is realized.
The vibration waveform to be output in this embodiment may be an envelope waveform of vibration intensity, for example, fig. 3 is a schematic diagram of a vibration waveform to be output taking a vibration acceleration envelope as an example, where a vertical axis may be an envelope of vibration intensity (such as a vibration acceleration envelope), and a horizontal axis is time; the to-be-output vibration waveform may also be a waveform in which the vibration intensity varies with time, and when the to-be-output vibration waveform is a waveform in which the vibration intensity varies with time, step S20 includes:
converting the vibration waveform to be output into an envelope waveform of vibration intensity;
and converting the envelope waveform according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output.
The vibration strength may include at least one of vibration strength, vibration displacement, vibration velocity, vibration acceleration, and vibration momentum.
In this embodiment, an amplifier may be provided to amplify the motor driving signal, where the amplifier is a power amplifier, and the amplifier adjusts the voltage of the vibration motor after processing the motor driving signal, so that the vibration motor vibrates according to the motor driving signal.
In this embodiment, after obtaining the vibration feedback information, the vibration feedback information may be stored, and when storing the vibration feedback information, the vibration feedback information may be stored in a covering manner, and when receiving one vibration feedback information, the received vibration feedback information is used to cover the stored vibration feedback information; the vibration feedback information can be cleaned regularly, a preset amount of vibration feedback information is cleaned at intervals, and the collection time of the cleaned vibration feedback information is earlier than that of the vibration feedback information which is not cleaned.
According to the technical scheme disclosed by the embodiment, the vibration waveform to be output is obtained, the vibration waveform to be output is converted according to the vibration feedback information of the vibration motor to obtain a matched motor driving signal, the vibration motor is driven to vibrate according to the motor driving signal, and the vibration feedback information of the vibration motor is combined when the vibration waveform to be output is converted into the motor driving signal, so that the obtained motor driving signal is more consistent with the characteristics of the vibration motor, the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the accuracy of the vibration wave output by the vibration motor is improved; meanwhile, the vibration feedback information is acquired when the vibration motor vibrates at every time, namely the vibration feedback information is updated in real time, so that the motor driving signal can better accord with the state of the vibration motor.
Referring to fig. 4, a second embodiment of the vibration control method according to the present invention is provided based on the first embodiment, in which the step S20 includes:
and step S21, obtaining the motor driving signal matched with the vibration waveform to be output according to the vibration feedback information, the vibration waveform to be output and a preset conversion model, and driving the vibration motor to vibrate according to the motor driving signal.
In this embodiment, when the vibration waveform to be output is an envelope waveform of the vibration intensity, the envelope waveform of the vibration intensity and the vibration feedback information may be input into a preset conversion model to obtain a motor driving signal; or, when the vibration waveform to be output is a waveform with vibration intensity changing along with time, the vibration waveform to be output can be converted into an envelope waveform of the vibration intensity, and the envelope waveform and vibration feedback information are input into a preset conversion model to obtain a motor driving signal.
In this embodiment, after the motor driving signals are input to the vibration motor, vibration feedback information may be collected, each motor driving signal and the corresponding vibration feedback information line form a training array, and the conversion model is generated by a plurality of training arrays. And inputting the vibration feedback information and the vibration waveform to be output into a conversion model to obtain the motor driving signal.
In this embodiment, the vibration waveform to be output can be accurately and rapidly converted into the motor driving signal through the preset conversion model.
Referring to fig. 5, a third embodiment of the vibration control method according to the present invention is provided based on the second embodiment, and after step S21 in this embodiment, the method further includes:
and step S30, updating the conversion parameters of the conversion model according to the vibration feedback information.
In this embodiment, the conversion model may be calibrated through the vibration feedback information, and in the specific calibration process, the step of determining a difference between a vibration parameter in the vibration feedback information and a vibration intensity in a vibration waveform to be output after the vibration feedback information is obtained may be referred to, and the conversion parameter of the conversion model may be updated according to the difference, or the conversion parameter of the conversion model may be updated in other manners, which is not described herein again.
In this embodiment, the update timing of the conversion parameter may be set according to requirements, for example, when the haptic playback device of the vibration motor is powered on, the conversion parameter of the conversion model is updated according to the vibration feedback information; or when the vibration feedback information is detected, updating the conversion parameters of the conversion model according to the vibration feedback information; or updating the conversion parameters of the conversion model according to the vibration feedback information in a preset time interval at intervals of a preset time interval.
According to the technical scheme disclosed by the embodiment, the conversion parameters of the conversion model are continuously updated according to the vibration feedback information, so that the motor driving signals obtained by conversion according to the conversion model are more matched with the vibration motor, and the motor can more accurately restore the vibration waveform to be output.
Further, it is understood that, in order to avoid the sudden change of the vibration intensity, in the modified embodiments of the second embodiment and the third embodiment, the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain the motor driving signal matched with the vibration waveform to be output includes:
sequentially inputting the envelope value of the vibration intensity and the vibration feedback information into a conversion model according to time variation according to the envelope waveform of the vibration intensity so as to obtain voltage which varies according to time;
when the envelope value of each vibration intensity is input, the conversion parameters of the conversion model are adjusted according to the change of the envelope value of the vibration intensity.
In this embodiment, the waveform to be output may be an envelope waveform of the vibration intensity, the waveform represents a correspondence between an envelope value of the vibration intensity and time, the envelope value of the vibration intensity and the vibration feedback information may be sequentially input to the conversion model according to a time axis to obtain a voltage, and since the envelope of the vibration intensity is time-varying and the correspondingly obtained voltage is time-varying, a motor driving signal of which the voltage is time-varying may be obtained; however, since there is a point with a large variation in the envelope value of the vibration intensity, the conversion parameter of the conversion model needs to be adjusted at the point, so that the motor driving signal changes smoothly, and the discontinuous situation is avoided when the motor vibrates.
Referring to fig. 6, a fourth embodiment of the vibration control method according to the present invention is provided based on the first embodiment, in which the step S20 includes:
step S22, obtaining a target driving signal according to the vibration waveform to be output and a preset conversion model;
and step S23, adjusting the target driving signal according to the vibration feedback information to obtain the motor driving signal, so as to drive the vibration motor to vibrate according to the motor driving signal.
The obtaining method of the conversion model in this embodiment may refer to the second embodiment, which is not described herein again, and when the to-be-output vibration waveform is an envelope waveform of vibration intensity, the to-be-output vibration waveform may be input into a preset conversion model to obtain the target driving signal, and then the target driving signal is adjusted according to the vibration feedback information to obtain the motor driving signal, for example, a voltage value corresponding to the motor driving signal obtained according to the conversion model is 5V, and an acceleration rate in the corresponding to-be-output vibration waveform is 20m/s2And the acceleration in the feedback information is 15m/s2The voltage value needs to be boosted to make the acceleration reach 20m/s2(ii) a It is understood that, when the vibration waveform to be output is a waveform in which the vibration intensity varies with time, the vibration waveform to be output may be converted into an envelope waveform of the vibration intensity, and then the envelope waveform is input into a preset conversion model to obtain the target driving signal.
It will be appreciated that the parameters in the conversion model may also be updated based on vibration feedback information.
In the technical scheme disclosed by the embodiment, the target driving signal is directly obtained according to the conversion of the vibration waveform to be output, the conversion model in the scheme is simpler, the conversion is quicker, and the conversion efficiency of the motor driving signal is improved.
The present invention also proposes a haptic playback device of a vibration motor, comprising:
a memory storing a vibration control program;
a processor, the vibration control program in the memory implementing the vibration control method as described in the above embodiments when executed by the processor;
a vibration motor;
the motor driver receives the motor driving signal output by the processor, amplifies the motor driving signal and drives the vibration motor to vibrate;
and the detection device is connected with the processor and used for detecting the vibration feedback information of the vibration motor.
Optionally, the vibration motor is a linear resonant motor.
The invention also proposes a terminal device comprising a haptic playback device of a vibrating motor as described in the above embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A vibration control method applied to a haptic playback apparatus of a vibration motor, comprising:
acquiring a vibration waveform to be output;
converting the vibration waveform to be output according to vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output, and driving the vibration motor to vibrate according to the motor driving signal;
the time length of the motor driving signal is the same as that of the vibration waveform to be output, and the vibration feedback information is obtained after the vibration motor vibrates according to the motor driving signal.
2. The vibration control method according to claim 1,
the vibration waveform to be output is an envelope waveform of vibration intensity;
or, the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output includes:
converting the vibration waveform to be output into an envelope waveform of vibration intensity;
and converting the envelope waveform according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output.
3. The vibration control method according to claim 2, wherein the vibration intensity includes at least one of a vibration force, a vibration displacement, a vibration velocity, a vibration acceleration, and a vibration momentum.
4. The vibration control method according to claim 1, wherein the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output so as to drive the vibration motor to vibrate according to the motor driving signal comprises:
and obtaining the motor driving signal matched with the vibration waveform to be output according to the vibration feedback information, the vibration waveform to be output and a preset conversion model so as to drive the vibration motor to vibrate according to the motor driving signal.
5. The vibration control method according to claim 4, further comprising:
and updating the conversion parameters of the conversion model according to the vibration feedback information.
6. The vibration control method according to claim 5, wherein the step of updating the conversion parameters of the conversion model according to the vibration feedback information comprises:
updating the conversion parameters of the conversion model according to the vibration feedback information when the touch sense playback equipment of the vibration motor is started;
or when the vibration feedback information is detected, updating the conversion parameters of the conversion model according to the vibration feedback information;
or updating the conversion parameters of the conversion model according to the vibration feedback information in a preset time interval at intervals of a preset time interval.
7. The vibration control method according to claim 1, wherein the step of converting the vibration waveform to be output according to the vibration feedback information of the vibration motor to obtain a motor driving signal matched with the vibration waveform to be output so as to drive the vibration motor to vibrate according to the motor driving signal comprises:
obtaining a target driving signal according to the vibration waveform to be output and a preset conversion model;
and adjusting the target driving signal according to the vibration feedback information to obtain the motor driving signal so as to drive the vibration motor to vibrate according to the motor driving signal.
8. The vibration control method according to any one of claims 1 to 7, wherein the vibration feedback information includes at least one of a counter electromotive force, a current, a vibration force, a vibration displacement, a vibration speed, a vibration acceleration, and a vibration momentum of the vibration motor.
9. A haptic playback device of a vibration motor, characterized in that the haptic playback device comprises:
a memory storing a vibration control program;
a processor, the vibration control program in the memory implementing the vibration control method of any one of claims 1-8 when executed by the processor;
a vibration motor;
the motor driver receives the motor driving signal output by the processor, amplifies the motor driving signal and drives the vibration motor to vibrate;
and the detection device is connected with the processor and used for detecting the vibration feedback information of the vibration motor.
10. A haptic playback device as recited in claim 9 wherein said vibration motor is a linear resonant motor.
11. A terminal device characterized in that it comprises a haptic playback device of a vibrating motor according to claim 9 or 10.
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| CN1963702A (en) * | 2005-11-11 | 2007-05-16 | 株式会社日立产机系统 | Automatic regulating method and device for electromotor control device |
| CN102354232A (en) * | 2011-07-14 | 2012-02-15 | 瑞声声学科技(深圳)有限公司 | Vibrating system and driving method thereof |
| US20130241849A1 (en) * | 2012-03-15 | 2013-09-19 | Alpine Electronics, Inc. | Touch screen device |
| CN109782894A (en) * | 2017-11-14 | 2019-05-21 | 夏普株式会社 | Input unit |
| CN207585833U (en) * | 2017-12-04 | 2018-07-06 | 交通运输部公路科学研究所 | A kind of low-frequency vibration experimental rig |
| CN108848257A (en) * | 2018-06-06 | 2018-11-20 | 北京小米移动软件有限公司 | The method and device of controlling terminal vibration |
| WO2020004841A1 (en) * | 2018-06-28 | 2020-01-02 | 주식회사 동운아나텍 | Actuator control device and method |
| CN110221101A (en) * | 2019-05-30 | 2019-09-10 | 浙江埃特斯力试验设备有限公司 | Low-frequency standard vibration platform based on overall-finished housing |
| CN111352509A (en) * | 2020-03-03 | 2020-06-30 | 瑞声科技(新加坡)有限公司 | Vibration control method, storage medium and equipment |
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