WO2021196252A1

WO2021196252A1 - Vibration signal generation method and apparatus, terminal, and storage medium

Info

Publication number: WO2021196252A1
Application number: PCT/CN2020/083653
Authority: WO
Inventors: 郑亚军
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-03-31
Filing date: 2020-04-08
Publication date: 2021-10-07
Also published as: CN111552378A; CN111552378B

Abstract

Disclosed is a vibration signal generation method. The method comprises: acquiring an input vibration signal design request, and determining at least one custom parameter included in the vibration signal request; determining an original vibration curve and a target envelope curve according to the custom parameter; generating a target vibration curve according to the original vibration curve and the target envelope curve; and according to an electromechanical coupling relationship corresponding to a vibration system, determining a target drive voltage signal corresponding to the target vibration curve, and driving, by means of the target drive voltage signal, an electric motor in the vibration system to vibrate. In addition, further disclosed are a vibration signal generation apparatus, a terminal, and a computer-readable storage medium. By means of the present invention, a vibration signal waveform of an electric motor can be designed according to a custom parameter, thereby realizing diversified and custom design of a tactile effect.

Description

Vibration signal generation method, device, terminal and storage medium

【Technical Field】

The present invention relates to the technical field of signal processing, and in particular to a method, device, terminal and storage medium for generating vibration signals.

【Background technique】

With the practicability and entertainment of the tactile feedback system being widely used in various fields and various devices, the design of rich tactile experience effects has become an important means to improve user experience. At present, most of the haptic effects are stored in the memory in the electrical signal library (that is, the haptic effect library) through the electrical signals pre-designed by the designer, and are called in actual applications. However, storing haptic effects in this way is limited, and it is difficult to meet the increasing demand for haptic experience of users.

In order to meet users’ increasing demand for tactile experience and provide more and more suitable tactile experiences for users, user-defined tactile designs can be adopted. However, when customizing tactile designs, it is likely to be due to the voltage output capability of the actual device and the vibration motor. The limitations of performance and the reasonableness of expected (vibration) waveforms are prone to problems such as excessive voltage, sudden changes in experience, and vibration and noise. These problems directly lead to the comfort of tactile experience and the richness of tactile experience that cannot meet user satisfaction. status.

[Summary of the invention]

In view of this, the present invention provides a vibration signal generation method, device, terminal, and storage medium, which are used to solve the problem that the vibration signal generation method in the prior art is relatively single, and the haptic effect that can be achieved is less, which cannot meet the needs of users. Make a custom question.

The specific technical solution of the embodiment of the present invention is:

In the first aspect, an embodiment of the present invention provides a method for generating a vibration signal, including:

Acquiring an input vibration signal design request, and determining at least one custom parameter included in the vibration signal request;

Determine the original vibration curve and the target envelope curve according to the custom parameters;

Generating a target vibration curve according to the original vibration curve and the target envelope curve;

The target driving voltage signal corresponding to the target vibration curve is determined according to the electromechanical coupling relationship corresponding to the vibration system, and the motor in the vibration system is driven to vibrate by the target driving voltage signal.

Further, the custom parameters include at least two of the frequency value, the duration of the startup section, the duration of the transition section, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate.

The determining the original vibration curve and the target envelope curve according to the custom parameters includes:

The original vibration curve is determined according to the frequency value, and the target envelope curve is determined according to the duration of the startup section, the duration of the transition section, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate.

Further, the target envelope curve includes an envelope curve of a start-up section, an envelope curve of a transition section, and an envelope curve of a decay section,

The determining the target envelope curve according to the duration of the startup section, the duration of the transition section, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate includes:

The startup section envelope curve is determined according to the startup section duration and the startup rate parameter value, the decay section envelope curve is determined based on the decay section duration and the decay rate parameter value, and the transition section duration is Determine the envelope curve of the transition section;

The target envelope curve is determined according to the envelope curve of the start-up section, the envelope curve of the transition section, and the envelope curve of the attenuation section.

Further, the process of determining the envelope curve of the startup section according to the duration of the startup section and the parameter value of the startup rate includes:

The envelope curve of the start-up section is generated according to the following formula:

Where e ₁ is the envelope curve of the start-up period, t is a preset time variable, T ₁ is the duration of the start-up period, and α is the parameter value of the start-up rate.

Further, the process of determining the envelope curve of the attenuation section according to the duration of the attenuation section and the parameter value of the attenuation rate includes:

The envelope curve of the attenuation section is generated according to the following formula:

e ₂ ＝cosθ

Wherein e ₂ is the envelope curve of the attenuation section, t is a preset time variable, T ₂ is the duration of the attenuation section, and β is the parameter value of the attenuation rate.

Further, the obtaining of the input vibration signal design request includes:

Display a preset vibration signal design interface through a preset device, and detect the vibration signal design request input on the vibration design definition interface;

The custom parameter is determined according to the vibration signal design request.

Further, the process of determining the original vibration curve further includes:

Obtain the preset vibration signal curve design template;

The original vibration curve is determined according to the vibration signal curve design template and/or the custom parameter.

In a second aspect, an embodiment of the present invention provides an apparatus for generating a vibration signal, including:

Obtaining module: Obtain the input vibration signal design request, and determine at least one custom parameter included in the vibration signal request;

The first determination module: used to determine the original vibration curve and the target envelope curve according to the custom parameters;

The second determining module: used to generate a target vibration curve according to the original vibration curve and the target envelope curve;

Drive module: used to determine the target drive voltage corresponding to the target vibration curve according to the electromechanical coupling relationship corresponding to the vibration system, and drive the motor in the vibration system to vibrate with the target drive voltage.

In a third aspect, an embodiment of the present invention also provides a terminal, including a memory, a processor, and a computer program stored on the memory and running on the processor. The processor executes the computer program when the computer program is executed. The steps of the vibration signal generation method as described above.

In a fourth aspect, an embodiment of the present invention also provides a computer-readable storage medium, including computer instructions, which when run on a computer, cause the computer to execute the steps of the method for generating vibration signals as described above.

Implementing the embodiments of the present invention will have the following beneficial effects:

After the vibration signal generation method, device, terminal, and storage medium are adopted, at least one custom parameter included in the vibration signal request is determined by acquiring the input vibration signal design request;

This embodiment obtains custom parameters, determines the original vibration curve and the target envelope curve according to the custom parameters, and finally generates the target vibration curve according to the target envelope curve and the original signal value, thereby generating the vibration signal waveform corresponding to the custom parameter In this way, the motor is driven to vibrate to achieve the corresponding custom haptic effect, thereby avoiding the existing problems of excessive voltage, sudden change in experience, and vibration and noise in the haptic effect design, and satisfying the user’s preference for diversity and reflecting their own preferences. The tactile design requirements have improved the user’s tactile feedback experience.

【Explanation of the drawings】

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

in:

Fig. 1 shows a flowchart of a method for generating a vibration signal in an embodiment;

Figure 2 shows a flowchart of determining custom parameters in an embodiment;

Figure 3 shows a flow chart of generating an original vibration curve in an embodiment;

Figure 4 shows a flow chart of determining the target envelope curve in an embodiment;

Figure 5 shows a schematic diagram of a vibration signal generating device in an embodiment;

Fig. 6 shows an internal structure diagram of a computer device in an embodiment.

【Detailed ways】

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to solve the custom design of haptic effects in traditional technology, there are certain limitations due to the voltage output capacity of the actual equipment, the performance of the vibration motor, and the reasonableness of the expected vibration waveform. These are the corresponding haptics of the custom-designed vibration signal The realization of the effect has caused limitations and obstacles, so that it is easy to have problems such as high driving voltage corresponding to the custom-designed vibration waveform, sudden changes in the tactile experience, and vibration and noise. These problems directly lead to the comfort of the tactile experience and the sense of touch. Experience the problem that the richness does not meet the ideal user needs.

Based on the above problems, in this embodiment, a method for generating a vibration signal is specially proposed. The implementation of the method can rely on a computer program, which can run on a computer system based on the von Neumann system.

The vibration signal generation method of this embodiment is applicable to a vibration system including a vibration motor, for example, electronic devices such as mobile phones, smart watches, notebook computers, etc., which are used to obtain vibration tactile sensation through the vibration of the vibration motor in the vibration system. The vibration signal generation method of this embodiment can determine the corresponding target vibration waveform according to the input custom parameters of the haptic design, so as to drive the motor to vibrate to achieve the corresponding custom haptic effect, thereby improving the design of the haptic feedback effect. Experience.

As shown in Fig. 1, Fig. 1 shows a flowchart of a method for generating a vibration signal in an embodiment. The method for generating a vibration signal provided in this embodiment at least includes steps S1022-S1028:

In step S1022, an input vibration signal design request is obtained, and at least one custom parameter included in the vibration signal request is determined.

First, consider that custom operators are generally users of devices with vibration functions such as mobile phones, smart watches, etc. Therefore, in order to facilitate users to design their own preferences or needs for vibration effects, in a specific embodiment, you can It displays a preset vibration signal design interface through a preset device, so that users can input custom parameters, adjust signal waveforms, try out the vibration of vibration signals and other custom operations related to tactile design on the design interface.

That is to say, the specific determination process of the custom parameter here may also include at least the steps S1032-S1034 shown in FIG. 2. Figure 2 shows a flow chart of determining custom parameters in an embodiment.

In step S1032, the preset vibration signal design interface is displayed through the preset device, and the vibration signal design request input on the vibration design definition interface is detected.

In a specific embodiment, it may be that the mobile phone user enters the personalized notification interface by opening the setting function of his mobile phone, and selects the sub-interface of tactile design. Alternatively, the user may open the downloaded tactile design APP , Enter the preset vibration signal design interface included in the APP to operate.

It should be noted that in the actual tactile design application, what the user needs to achieve is a tactile effect, which is also directly felt in the end. Therefore, in order to improve the user’s interactivity, when customizing the tactile effect to meet their own preferences, while providing the user with a vibration signal design interface and parameter input channel, it can be further, in an optional embodiment , It can also guide the user to generate and adjust this waveform in a visual form, and drive the preset motor module to vibrate after each custom parameter input and adjustment, so as to provide the expected tactile effect for trial and provide users with A perceptual experience of tactile effects designed by myself.

In step S1034, the custom parameter is determined according to the vibration signal design request.

First of all, the custom parameters here also include at least at least two of the frequency value, the duration of the startup period, the duration of the transition period, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate.

The meaning and function of the above parameters are explained below: In the actual vibration signal design, the parameter items based on frequency can include the fixed frequency value that does not change with time, and the gradual value that changes with time. Frequency determines The basic aspect of a vibration signal.

Furthermore, in order to further enhance the richness of the tactile experience when vibrating based on frequency, it is necessary to introduce certain signal fluctuations and strength changes, that is, various activation rates and decay rates. Specifically, different starting rate parameter values determine different starting rates; different decay rate parameter values determine different decay rates. The greater the value of the startup rate parameter, the shorter the time to reach the preset shock, and the shorter the waiting and prelude that the user feels. Correspondingly, the larger the value of the attenuation rate parameter, the shorter the time for the tremor to disappear, and the faster the time for the user to feel the absence of tremor.

In step S1024, the original vibration curve and the target envelope curve are determined according to the custom parameters.

First of all, in addition to the original vibration curve, the reason why the target envelope curve must be designed based on custom parameters is: because of the voltage output capacity of the actual equipment, the performance of the vibration motor, and the reasonableness of the expected vibration waveform (that is, the user design ) Has certain limitations, that is to say, if the custom parameters only include the basic frequency, amplitude, etc., then the vibration signal designed by the user may be too ideal, and the corresponding vibration effect may be relatively simple and inconsistent with the user’s sense of touch. Perceive the law.

For example, the user’s perception and reception of tactile feedback effects generally has a process that is gradually enhanced (started) to reach the wake-up effect and lasted for a period of time (transition) and then gradually attenuated. The difference between different tactile effects is in addition to the frequency. The reason is that the duration and slope of the three stages of start, transition, and attenuation are different. This is because different users are different in their sensitivity to changes in tremor and the level of wake-up threshold. Therefore, the envelope form of the vibration signal affects the sense of touch. An important factor in experience comfort and richness of tactile experience.

In step S1026, a target vibration curve is generated according to the original vibration curve and the target envelope curve.

In a specific embodiment where the original vibration curve is A1 and the target envelope curve is E1, the product of the original vibration curve and the target envelope curve, that is, A1*E1, can be taken as the target vibration curve.

In addition, it should be noted that the original vibration curve here can not only be generated according to the corresponding items (such as frequency) in the above-mentioned custom parameters, but also can be a vibration curve corresponding to a basic default vibration provided by the vibration system. template.

Take an example to illustrate, that is to say, for example, the corresponding tactile and vibration effects for incoming calls, cameras or text messages are generally different in order of magnitude. Follow common sense and conventions. When designing tactile effects corresponding to some events or operations, These users do not need to change their basis, and may only perform some fine-tuning of the signal change mode. Therefore, in an alternative embodiment, the original vibration curve generation process may further include steps S1042-S1044 shown in FIG. 3. Fig. 3 shows a flow chart of generating the original vibration curve in an embodiment.

In step S1042, a preset vibration signal curve design template is obtained.

Specifically, the curve design template here may be a basic vibration signal waveform diagram with a preset frequency value and amplitude value. Optionally, it may also be a filled template containing a series of parameters.

In step S1044, the original vibration curve is determined according to the vibration signal curve design template and/or the custom parameter.

On the one hand, the original vibration curve can be directly generated according to the default preset frequency value contained in the aforementioned vibration signal curve design template. On the other hand, it can also be filled in with custom parameters on the filling template to generate the corresponding response according to the preset calculation formula. As the original vibration curve.

In addition, it should be noted that in an optional embodiment, the vibration signal curve design template here can also be displayed through a preset interface. The design template here may itself contain a series of basic custom parameters that can be accepted. The vibration signal design request input by the user can modify the parameters in the template.

Or, in a specific embodiment, a graph of the original vibration signal can be directly displayed, so that the user can make adjustments on the basis of the graph to design the envelope graph. As mentioned above, in the specific operation It can be to provide users with editing operations of dragging and cutting graphs, which largely saves users from the time and thinking cost of dealing with technical parameters that they are not familiar with, and improves users' personal design of tactile experience. Interactive experience. According to the editing operations made by the user on the original vibration signal graph, the corresponding start-up period, transition period, decay period, start-up rate parameter value, decay rate parameter value and other parameter values can be determined here to generate the target envelope curve.

Considering that the user’s haptic effects generally have a process of gradual enhancement (activation) to reach the awakening effect and then lasting for a period of time (transition) and then gradually attenuating. The difference between different haptic effects lies in the activation, transition, and attenuation mentioned above. The duration and slope of the three stages are different, because different users are different in their sensitivity to changes in tremor and the level of arousal threshold.

Therefore, the specific target envelope curve may also include at least the startup section envelope curve, the transition section envelope curve, and the attenuation section envelope curve. The rate parameter value and the attenuation rate parameter value determine the target envelope curve, including steps S1052-S1054 shown in FIG. 4, which shows a flowchart of determining the target envelope curve in an embodiment.

In step S1052, the startup section envelope curve is determined according to the startup section duration and the startup rate parameter value, the attenuation section envelope curve is determined based on the attenuation section duration and the attenuation rate parameter value, and according to The duration of the transition section determines the envelope curve of the transition section.

Specifically, the process of first determining the envelope curve of the startup section according to the duration of the startup section and the parameter value of the startup rate may specifically include the following steps:

Wherein, e ₁ is the envelope curve of the starting section, t is a preset time variable, T ₁ is the duration of the starting section, and α is the starting rate parameter value.

The principle of the above formula is briefly explained below:

It can be seen from the above formula that the larger the value of the starting rate, the faster the starting speed of the envelope curve calculated by the above formula. For example, when α, the starting rate parameter value is set to 10, the envelope curve will grow to a preset value (such as the peak of the envelope curve transition section) at about 15 milliseconds, and when α is set to 3, the envelope curve will be at 25 milliseconds. Increase the left and right to the preset value, and this parameter difference leads to the difference in the speed of the front (at the beginning) of the shock felt by the user. If you want to achieve the tactile effect of waking up quickly, you can increase the value of the startup rate parameter here.

Correspondingly, the process of determining the attenuation section envelope curve according to the attenuation section duration and the attenuation rate parameter value here may specifically include the following steps:

e ₂ ＝cosθ

The principle of the above formula is briefly explained below:

It can be seen from the above formula that the larger the value of the attenuation rate, the faster the attenuation speed of the envelope curve calculated by the above formula. For example, when β, the decay rate parameter value is set to 5, the envelope curve decays to a preset value (such as zero for stopping vibration) within 15 milliseconds, and when β is set to 1, the envelope curve decays to a value within 30 milliseconds The preset value, such a parameter difference leads to the difference in the speed of the attenuation of the shock sensation experienced by the user in the later stage. If you want to achieve the tactile effect that the shock disappears quickly, you can increase the value of the attenuation rate parameter.

In step S1054, the target envelope curve is determined according to the envelope curve of the start-up section, the envelope curve of the transition section, and the envelope curve of the attenuation section.

According to the function principle of the envelope curve and the characteristics and meaning of each segment, the specific generation method can be seamless splicing in sequence, that is, connecting together to form a complete section according to the sequence of the start section, the transition section, and the attenuation section. The target envelope curve.

In step S1028, the target driving voltage signal corresponding to the target vibration curve is determined according to the electromechanical coupling relationship corresponding to the vibration system, and the target driving voltage signal is used to drive the motor in the vibration system to vibrate.

The electromechanical coupling relationship here refers to the coupling relationship between the mechanical model and the electrical model of the vibration system. When the relative parameters of the vibration curve such as displacement, speed or acceleration are used as mechanical input, the electrical output-voltage can be obtained through the inclusion and coupling relationship of the vibration model, and the preset motor device can be driven to vibrate with this voltage. The vibration is fed back to the user.

Based on the same inventive concept, an embodiment of the present invention provides an apparatus 1060 for generating a vibration signal, as shown in FIG. A custom parameter; the first determination module 1064 is used to determine the original vibration curve and the target envelope curve according to the custom parameters; the second determination module 1066 is used to determine the original vibration curve and the target envelope curve according to the Generate a target vibration curve; a driving module 1068, configured to determine the target driving voltage corresponding to the target vibration curve according to the electromechanical coupling relationship corresponding to the vibration system, and drive the motor in the vibration system to vibrate with the target driving voltage.

Specifically, the vibration signal generation device 1060 of this embodiment obtains the input vibration signal design request through the obtaining module 1062, determines at least one custom parameter included in the vibration signal request, and then the first determining module 1064 determines the parameters according to the The custom parameters determine the original vibration curve and the target envelope curve, and then the second determination module 1066 generates the target vibration curve according to the original vibration curve and the target envelope curve determined by the first determination module 1064, so that the drive module 1068 is used for The target driving voltage corresponding to the target vibration curve is determined according to the electromechanical coupling relationship corresponding to the vibration system, and the motor in the vibration system is driven to vibrate with the target driving voltage, so as to realize a custom tactile design.

It should be noted that the realization of the vibration signal generation device in this embodiment is consistent with the realization idea of the vibration signal generation method described above, and its realization principle will not be repeated here. For details, please refer to the corresponding content in the above method.

Fig. 6 shows an internal structure diagram of a computer device in an embodiment. The computer device may specifically be a server or a terminal. As shown in Figure 6, the computer device includes a processor, a memory, and a network interface connected through a system bus. Among them, the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor can realize the vibration signal generation method. A computer program may also be stored in the internal memory. When the computer program is executed by the processor, the processor can execute the vibration signal generation method. Those skilled in the art can understand that the structure shown in FIG. 6 is only a block diagram of part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may It includes more or fewer components than shown in FIG. 6, or combines certain components, or has a different component arrangement.

In an embodiment, the method for generating vibration signals provided in the present application can be implemented in the form of a computer program, and the computer program can be run on a computer device as shown in FIG. 6. The memory of the computer device can store various program modules that make up the vibration signal generating device. For example, the first determining module 1064 and so on.

In one embodiment, a computer device is provided, including a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the following steps: Obtain input A vibration signal design request for determining at least one custom parameter included in the vibration signal request;

In one embodiment, a computer-readable storage medium is provided that stores a computer program, and when the computer program is executed by a processor, the processor executes the following steps:

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing relevant hardware through a computer program. The program can be stored in a non-volatile computer readable storage medium. Here, when the program is executed, it may include the procedures of the above-mentioned method embodiments. Wherein, any reference to memory, storage, database, or other media used in the embodiments provided in this application may include non-volatile and/or volatile memory. Non-volatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not a limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Channel (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

The above-disclosed are only the preferred embodiments of the present invention, which of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

A method for generating a vibration signal, characterized in that the method is based on a vibration system, and the method includes:

Acquiring an input vibration signal design request, and determining at least one custom parameter included in the vibration signal request;

Determine the original vibration curve and the target envelope curve according to the custom parameters;

Generating a target vibration curve according to the original vibration curve and the target envelope curve;

The target driving voltage signal corresponding to the target vibration curve is determined according to the electromechanical coupling relationship corresponding to the vibration system, and the motor in the vibration system is driven to vibrate by the target driving voltage signal.
The method for generating a vibration signal according to claim 1, wherein the custom parameters include at least one of frequency value, start-up period, transition period, decay period, start-up rate parameter value, and decay rate parameter value. two,

The determining the original vibration curve and the target envelope curve according to the custom parameters includes:

The original vibration curve is determined according to the frequency value, and the target envelope curve is determined according to the duration of the startup section, the duration of the transition section, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate.
The method for generating a vibration signal according to claim 2, wherein the target envelope curve comprises an envelope curve of a start section, an envelope curve of a transition section, and an envelope curve of a decay section,

The determining the target envelope curve according to the duration of the startup section, the duration of the transition section, the duration of the decay section, the parameter value of the startup rate, and the parameter value of the decay rate includes:

The startup section envelope curve is determined according to the startup section duration and the startup rate parameter value, the decay section envelope curve is determined based on the decay section duration and the decay rate parameter value, and the transition section duration is Determine the envelope curve of the transition section;

The target envelope curve is determined according to the start-up section envelope curve, the transition section envelope curve, and the attenuation section envelope curve.
The method for generating a vibration signal according to claim 3, wherein the process of determining the envelope curve of the start-up section according to the duration of the start-up section and the parameter value of the start-up rate comprises:

The envelope curve of the start-up section is generated according to the following formula:

Wherein, e 1 is the envelope curve of the starting section, t is a preset time variable, T 1 is the duration of the starting section, and α is the starting rate parameter value.
The method for generating a vibration signal according to claim 3, wherein the process of determining the envelope curve of the attenuation section according to the duration of the attenuation section and the attenuation rate parameter value comprises:

The envelope curve of the attenuation section is generated according to the following formula:

e 2 ＝cosθ

Wherein e 2 is the envelope curve of the attenuation section, t is a preset time variable, T 2 is the duration of the attenuation section, and β is the parameter value of the attenuation rate.
The method for generating a vibration signal according to claim 1, wherein said obtaining the input vibration signal design request comprises:

Display a preset vibration signal design interface through a preset device, and detect the vibration signal design request input on the vibration design definition interface;

The custom parameter is determined according to the vibration signal design request.
The method for generating a vibration signal according to claim 1, wherein the process of determining the original vibration curve further comprises:

Obtain the preset vibration signal curve design template;

The original vibration curve is determined according to the vibration signal curve design template and/or the custom parameter.
A device for generating vibration signals, characterized in that the device comprises:

Obtaining module: used to obtain the input vibration signal design request, and determine at least one custom parameter included in the vibration signal request;

The first determination module: used to determine the original vibration curve and the target envelope curve according to the custom parameters;

The second determining module: used to generate a target vibration curve according to the original vibration curve and the target envelope curve;

Drive module: used to determine the target drive voltage corresponding to the target vibration curve according to the electromechanical coupling relationship corresponding to the vibration system, and drive the motor in the vibration system to vibrate with the target drive voltage.
A readable storage medium storing a computer program, and when the computer program is executed by a processor, the processor executes the steps of the method according to any one of claims 1 to 7.
A computer device, comprising a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the method according to any one of claims 1 to 7 A step of.