WO2022041346A1 - 线性马达的触控装置的振动量确定方法及相关设备 - Google Patents
线性马达的触控装置的振动量确定方法及相关设备 Download PDFInfo
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- 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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- the invention relates to the field of linear motor technology, and in particular, to a method for determining the vibration amount of a touch device of a linear motor and related equipment.
- Haptic feedback plays an important role in the interactive experience of electronic products, which can bring people an immersive and real experience.
- linear motors represented by linear motors, are more and more widely used in mid-to-high-end mobile phones. good user experience.
- linear motors are rarely used in the interaction of products such as automobiles.
- various tactile feedback application interaction scenarios on vehicles or other products such as the central control display of the car, various switch buttons, etc.
- the touch control party feedbacks the rules of structure design and motor selection, and there is no effective simulation guidance scheme, which affects the application of linear motors in automobiles and other products, and the research and development speed is slow and the research and development cost is high.
- the present invention provides a method, device, computer equipment and storage medium for determining the vibration amount of a touch control device of a linear motor, which can evaluate and predict the maximum output vibration amount of the linear motor in the structure in the early stage of product development, which is
- the design optimization of touch feedback structure and the selection of motor models provide simulation guidance, which can speed up the research and development process, reduce unnecessary research and development costs, and improve the haptic effect.
- an embodiment of the present invention provides a method for determining a vibration amount of a touch control device of a linear motor.
- the touch control device of the linear motor includes a touch screen and a linear motor for driving the touch screen to vibrate, comprising: :
- the maximum vibration amount of the touch control device is determined according to the limit steady-state acceleration, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch control device.
- determining the limit steady-state acceleration of the touch screen according to the relative displacement of the motor vibrator of the linear motor includes:
- the limit steady-state acceleration of the touch screen is determined according to the limit voltage.
- calculating the relative displacement of the motor vibrator of the linear motor according to the frequency domain response includes:
- the relative displacement is calculated according to the first absolute displacement and the second absolute displacement.
- calculating the limit voltage of the linear motor according to the limit displacement and the relative displacement determined based on the overtravel phenomenon includes:
- a ratio of the limit displacement determined based on the overtravel phenomenon to the relative displacement is calculated, and the ratio is used as the limit voltage of the linear motor.
- calculating the limit voltage of the linear motor according to the limit displacement and the relative displacement determined based on the overtravel phenomenon includes:
- the ratio is used as the limit voltage of the linear motor.
- the determining the limit steady-state acceleration of the touch screen according to the limit voltage includes:
- the limit steady-state acceleration is obtained by calculation according to the unit acceleration and the limit voltage.
- the determining the vibration amount of the touch control device according to the limit steady-state acceleration includes:
- the maximum steady-state vibration amount threshold of the vibration amount of the touch-control device is determined by using the limit steady-state acceleration and the preset gravitational acceleration.
- an embodiment of the present invention further provides a vibration amount determination device of a touch control device of a linear motor, the touch control device of the linear motor includes a touch screen and a linear motor for driving the touch screen to vibrate, include:
- a frequency-domain response acquisition module configured to acquire the simulated frequency-domain response of the touch screen of the linear motor driven by a unit voltage
- a displacement calculation module configured to calculate the relative displacement of the motor vibrator of the linear motor according to the frequency domain response
- an acceleration determination module configured to determine the limit steady-state acceleration of the touch screen according to the relative displacement of the motor vibrator of the linear motor
- the vibration amount determination module is configured to determine the maximum vibration amount of the touch control device according to the limit steady-state acceleration, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch control device.
- an embodiment of the present invention further provides a terminal, including a memory, a processor, and a computer program stored on the memory and running on the processor, and the processor implements the computer program when the processor executes the computer program.
- an embodiment of the present invention further provides a computer-readable storage medium, including computer instructions, which, when the computer instructions are executed on the computer, cause the computer to execute the method for determining the vibration amount of a touch device of a linear motor as described above A step of.
- the device, terminal and storage medium for determining the vibration amount of the touch control device of the linear motor After adopting the method, device, terminal and storage medium for determining the vibration amount of the touch control device of the linear motor, obtain the frequency domain response of the touch screen of the linear motor driven by unit voltage obtained by simulation; calculate the linear motor according to the frequency domain response According to the relative displacement of the motor oscillator of the linear motor, the limit steady-state acceleration of the touch screen is determined; according to the limit steady-state acceleration, the maximum vibration amount of the touch device is determined, and the vibration amount is regarded as the maximum vibration amount of the touch device.
- Steady-state vibration threshold by determining the maximum vibration of the linear motor on the system structure in the early stage of product development, to provide simulation guidance for the design optimization of the touch feedback structure and motor selection, which can speed up the research and development process and reduce the cost of necessary R&D costs.
- FIG. 1 is a schematic flowchart of a method for determining a vibration amount of a touch device of a linear motor according to an embodiment
- FIG. 2 is a schematic flowchart of the method for determining the limit steady-state acceleration in one embodiment
- 3 is a schematic flowchart of the relative displacement calculation method described in one embodiment
- FIG. 5 is a schematic flowchart of the method for determining the limit steady-state acceleration in one embodiment
- FIG. 6 is a schematic structural diagram of a vibration amount determination device of the touch control device of the linear motor according to an embodiment
- FIG. 7 is a schematic diagram of the internal structure of a computer device that runs the method for determining the vibration amount of a touch device of a linear motor according to an embodiment.
- a method for determining the vibration amount of a touch device of a linear motor is proposed.
- the implementation of the method can rely on a computer program that can run on a computer system based on the von Neumann architecture.
- the method for determining the vibration amount of a touch device of a linear motor in this embodiment is applicable to a touch device of a linear motor.
- the touch device of a linear motor includes a touch screen and a touch screen for driving the touch screen.
- a vibrating linear motor, the method for determining the vibration amount of the touch device of the linear motor specifically includes the following steps:
- Step 102 Obtain the frequency domain response of the touch screen of the linear motor driven by the simulation and driven by a unit voltage.
- the frequency domain response refers to the characteristic that the amplitude and phase of the system signal are changed by the frequency change, and specifically, it can be described in the form of a system function. Specifically, by establishing a finite element simulation model of the structural system of the touch device, and then performing frequency domain simulation calculation in the simulation software, the frequency domain response of the structural system driven by the motor unit voltage (1V) can be obtained.
- Step 104 Calculate the relative displacement of the motor vibrator of the linear motor according to the frequency domain response.
- the relative displacement is the amount of change of a section of displacement relative to the reference displacement.
- the relative displacement of the motor vibrator of the linear motor in this embodiment refers to the difference between the absolute displacement of the touch screen in the motor movement direction and the absolute displacement of the motor vibrator. amount of change.
- the acceleration a 1 of the structural system in the vibration direction of the linear motor and the acceleration a 2 of the motor vibrator of the linear motor can be extracted from the frequency domain response, and the touch screen in the motor movement direction can be calculated according to the accelerations a 1 and a 2 respectively.
- the absolute displacement u 1 of the motor vibrator and the absolute displacement u 2 of the motor vibrator and then determine the relative displacement according to the absolute displacement u 1 of the touch screen in the motor movement direction and the absolute displacement u 2 of the motor vibrator.
- Step 106 Determine the limit steady-state acceleration of the touch screen according to the relative displacement of the motor vibrator of the linear motor.
- the limit steady-state acceleration refers to the constant acceleration of the structural system when the limit displacement is reached. Since the steady-state acceleration is the limit steady-state acceleration of the touch screen when the motor vibrator of the linear motor reaches the limit displacement, it can be used to determine the touch screen.
- Step 108 Determine the maximum vibration amount of the touch device according to the limit steady-state acceleration, and use the vibration amount as a threshold value of the maximum steady-state vibration amount of the touch device.
- the maximum vibration amount of the touch device can be obtained by calculating the limit steady-state acceleration and the acceleration of gravity, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch device.
- the maximum vibration amount of the linear motor on the system structure is determined, and simulation guidance is provided for the design optimization of the touch feedback structure and the selection of the motor, which can speed up the research and development process and reduce unnecessary research and development costs.
- the frequency domain response of the touch screen of the linear motor driven by a unit voltage obtained by simulation is obtained; the relative displacement of the motor vibrator of the linear motor is calculated according to the frequency domain response; The relative displacement of the motor vibrator of the motor determines the limit steady-state acceleration of the touch screen; the maximum vibration amount of the touch device is determined according to the limit steady-state acceleration, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch device.
- the maximum vibration amount of the linear motor in the system structure is determined, and simulation guidance is provided for the design optimization of the touch feedback structure and the selection of the motor, which can speed up the research and development process and reduce the research and development cost.
- the limit steady-state acceleration of the touch screen is determined according to the relative displacement of the motor vibrator of the linear motor, including:
- Step 106A Calculate the limit voltage of the linear motor according to the limit displacement and relative displacement determined based on the overtravel phenomenon
- Step 106B Determine the limit steady-state acceleration of the touch screen according to the limit voltage.
- the limit displacement refers to the critical value of the frequency domain voltage when the linear motor overtravel phenomenon occurs. Assuming that the limit displacement uc of a certain type of linear motor is exceeded, the linear motor will appear overtravel when the limit displacement is uc . Therefore, the limit voltage under this structural system can be expressed as u c /ur , and ur is expressed as the relative displacement. Then, the limit steady-state acceleration of the touch screen can be determined based on the limit voltage.
- the relative displacement of the motor oscillator of the linear motor is calculated according to the frequency domain response, including:
- Step 104A extracting the first absolute displacement of the touch screen in the vibration direction of the linear motor and the second absolute displacement of the motor vibrator of the linear motor from the frequency domain response;
- Step 104B Calculate the relative displacement according to the first absolute displacement and the second absolute displacement.
- the first absolute displacement of the touch screen in the vibration direction of the linear motor and the second absolute displacement of the motor vibrator of the linear motor are extracted from the frequency domain response, and then the difference between the first absolute displacement and the second absolute displacement is calculated. Difference, the absolute value of the difference is the relative displacement.
- the first absolute displacement and the second absolute displacement are u 1 and u 2 respectively, then abs(u 1 -u 2 ) is the relative displacement of the motor vibrator of the linear motor.
- the limit voltage of the linear motor is calculated according to the limit displacement and the relative displacement determined based on the overtravel phenomenon, including:
- the limit voltage of the linear motor is the ratio between the limit displacement and the relative displacement.
- the limit voltage of the linear motor is calculated according to the limit displacement and relative displacement determined based on the overtravel phenomenon, including:
- Step 106A1 Calculate the ratio of the limit displacement and the relative displacement determined based on the overtravel phenomenon
- Step 106A2 when the ratio is greater than the preset maximum driving voltage, determine the limit voltage of the linear motor as the maximum driving voltage;
- Step 106A3 When the ratio is less than or equal to the maximum driving voltage, use the ratio as the limit voltage of the linear motor.
- the ratio between the limit displacement and the relative displacement determined based on the overtravel phenomenon is first calculated. According to the ratio The magnitude relationship between the preset maximum drive voltage and the limit voltage of the linear motor is calculated. When the ratio is greater than the preset maximum drive voltage, the limit voltage of the linear motor is the maximum drive voltage. When the ratio is less than or equal to the maximum drive voltage , the ratio is used as the limit voltage of the linear motor, thereby further improving the accuracy of calculating the limit voltage of the linear motor, so that further processing can be performed based on the limit voltage subsequently.
- the limit steady-state acceleration of the touch screen is determined according to the limit voltage, including:
- Step 106B1 Acquire the unit acceleration corresponding to the touch screen when the limit displacement is reached;
- Step 106B2 Calculate and obtain the limit steady-state acceleration according to the unit acceleration and the limit voltage.
- the unit acceleration refers to the acceleration when the linear motor reaches the limit displacement under the drive of unit voltage. Specifically, the result of multiplying the unit acceleration and the limit voltage is determined as the limit steady-state acceleration.
- the determining the vibration amount of the touch device according to the limit steady-state acceleration includes:
- the maximum steady-state vibration threshold of the vibration of the touch device is determined by using the limit steady-state acceleration and the preset gravitational acceleration.
- the result of dividing the limit steady-state acceleration and the preset gravitational acceleration is determined as the maximum steady-state vibration amount threshold of the vibration amount of the touch device.
- an embodiment of the present invention provides a vibration amount determination device 600 of a touch control device of a linear motor, as shown in FIG. 6 , including: a frequency domain response acquisition module 602 for acquiring the linear motor obtained by simulation The frequency domain response of the touch screen driven by the unit voltage; the displacement calculation module 604 is used to calculate the relative displacement of the motor vibrator of the linear motor according to the frequency domain response; the acceleration determination module 606 is used to calculate the relative displacement according to the The relative displacement of the motor vibrator of the linear motor determines the limit steady-state acceleration of the touch screen; the vibration amount determination module 608 is configured to determine the maximum vibration amount of the touch-control device according to the limit steady-state acceleration, the The vibration amount is used as the maximum steady-state vibration amount threshold of the touch device.
- the apparatus 600 for determining the vibration amount of the touch control device of the linear motor in this embodiment includes: a frequency domain response acquisition module 602, configured to acquire the simulation result that the linear motor is driven by a unit voltage The frequency domain response of the touch screen; the displacement calculation module 604 is used to calculate the relative displacement of the motor vibrator of the linear motor according to the frequency domain response; the acceleration determination module 606 is used to calculate the relative displacement of the motor vibrator of the linear motor according to the The relative displacement of The maximum steady-state vibration threshold of the touch device.
- a frequency domain response acquisition module 602 configured to acquire the simulation result that the linear motor is driven by a unit voltage The frequency domain response of the touch screen
- the displacement calculation module 604 is used to calculate the relative displacement of the motor vibrator of the linear motor according to the frequency domain response
- the acceleration determination module 606 is used to calculate the relative displacement of the motor vibrator of the linear motor according to the The relative displacement of The maximum steady-state vibration threshold of the touch device.
- the realization of the device for determining the vibration amount of the touch device of the linear motor in this embodiment is consistent with the realization idea of the method for determining the vibration amount of the touch device of the linear motor described above, and the realization principle will not be repeated here.
- the realization principle please refer to the corresponding content in the above method for details.
- Figure 7 shows an internal structure diagram of a computer device in one embodiment.
- the computer device may be a server or a terminal.
- the computer device 700 includes a processor 710, a memory 720 and a network interface 730 connected through a system bus.
- the memory 720 includes a non-volatile storage medium and an internal memory.
- the non-volatile storage medium of the computer device stores an operating system, and also stores a computer program, which, when executed by the processor, enables the processor to implement a method for determining the vibration amount of the touch device of the linear motor.
- a computer program can also be stored in the internal memory, and when the computer program is executed by the processor, the processor can execute the method for determining the vibration amount of the touch device of the linear motor.
- FIG. 7 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. Include more or fewer components than shown in Figure 7, or combine some components, or have a different arrangement of components.
- the method for determining the vibration amount of a touch control device of a linear motor can be implemented in the form of a computer program, and the computer program can be executed on a computer device as shown in FIG. 7 .
- the memory of the computer device may store various program modules of the device for determining the vibration amount of the touch control device of the linear motor. For example, the filtering module 602 , the threshold obtaining module 604 , the determining module 606 , and the vibration amount determining module 608 .
- a computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor performs the following steps:
- the maximum vibration amount of the touch control device is determined according to the limit steady-state acceleration, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch control device.
- a computer-readable storage medium stores a computer program, characterized in that, when the computer program is executed by a processor, the following steps are implemented:
- the maximum vibration amount of the touch control device is determined according to the limit steady-state acceleration, and the vibration amount is used as the maximum steady-state vibration amount threshold of the touch control device.
- Nonvolatile 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.
- RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Road (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
- SRAM static RAM
- DRAM dynamic RAM
- SDRAM synchronous DRAM
- DDRSDRAM double data rate SDRAM
- ESDRAM enhanced SDRAM
- SLDRAM synchronous chain Road (Synchlink) DRAM
- SLDRAM synchronous chain Road (Synchlink) DRAM
- Rambus direct RAM
- DRAM direct memory bus dynamic RAM
- RDRAM memory bus dynamic RAM
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Abstract
一种线性马达的触控装置的振动量确定方法，通过获取仿真得到的线性马达在单位电压驱动下触控屏的频域响应（102）；根据频域响应计算线性马达的马达振子的相对位移（104）；根据线性马达的马达振子的相对位移，确定触控屏的极限稳态加速度（106）；根据极限稳态加速度确定触控装置的最大的振动量，振动量作为触控装置的最大稳态振动量阈值（108），通过在产品前期开发阶段确定线性马达在系统结构上的最大的振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低不必要的研发成本。此外，还提出了一种线性马达的触控装置的振动量确定装置、计算机设备及存储介质。
Description
本发明涉及线性马达术领域，尤其涉及一种线性马达的触控装置的振动量确定方法及相关设备。
触觉反馈在电子产品的交互体验中起着重要作用，可以给人带来一种身临其境的真实体验，尤其以线性马达为代表在中高端手机中的应用越来越广泛，获得了很好的用户体验。
然而，线性马达在汽车等产品的交互中还鲜有应用，针对车载或其他产品上的各种触觉反馈应用交互场景，如汽车中控显示屏，各种开关按钮等，目前还没有较好的触控方反馈结构设计和马达选型的规则，且不存在有效的仿真指导方案，影响了线性马达在汽车等产品中的应用，且研发速度慢，研发成本较高。
有鉴于此，本发明提供了一种线性马达的触控装置的振动量确定方法、装置、计算机设备及存储介质，可在产品前期开发阶段评估预测线性马达在结构上的最大输出振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低不必要的研发成本，提升触觉效果。
本发明实施例的具体技术方案为：
第一方面，本发明实施例提供一种线性马达的触控装置的振动量确定方法，所述线性马达的触控装置包括触控屏及用于驱动所述触控屏振动的线性马达，包括：
获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；
根据所述频域响应计算所述线性马达的马达振子的相对位移；
根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；
根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
进一步地，所述根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度，包括：
根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压；
根据所述极限电压确定所述触控屏的极限稳态加速度。
进一步地，所述根据所述频域响应计算所述线性马达的马达振子的相对位移，包括：
从所述频域响应中提取所述触控屏在所述线性马达的振动方向上的第一绝对位移和所述线性马达的马达振子的第二绝对位移；
根据所述第一绝对位移和所述第二绝对位移计算得到所述相对位移。
进一步地，所述根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压，包括：
计算基于超行程现象确定的极限位移与所述相对位移的比值，将所述比值作为所述线性马达的极限电压。
进一步地，所述根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压，包括：
计算基于超行程现象确定的极限位移与所述相对位移的比值；
当所述比值大于预设的最大驱动电压时，确定所述线性马达的极限电压为所述最大驱动电压；
当所述比值小于或等于所述最大驱动电压时，将所述比值作为所述线性马达的极限电压。
进一步地，所述根据所述极限电压确定所述触控屏的极限稳态加速度，包括：
获取所述触控屏在达到所述极限位移时对应的单位加速度；
根据所述单位加速度和所述极限电压计算得到所述极限稳态加速度。
进一步地，所述根据所述极限稳态加速度确定所述触控装置的振动量，包括：
利用所述极限稳态加速度和预设的重力加速度确定所述触控装置的振动量的最大稳态振动量阈值。
第二方面，本发明实施例还提供一种线性马达的触控装置的振动量确定装置，所述线性马达的触控装置包括触控屏及用于驱动所述触控屏振动的线性马达，包括：
频域响应获取模块，用于获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；
位移计算模块，用于根据所述频域响应计算所述线性马达的马达振子的相对位移；
加速度确定模块，用于根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；
振动量确定模块，用于根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
第三方面，本发明实施例还提供一种终端，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如上所述线性马达的触控装置的振动量确定方法的步骤。
第四方面，本发明实施例还提供一种计算机可读存储介质，包括计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行如上所述线性马达的触控装置的振动量确定方法的步骤。
实施本发明实施例，将具有如下有益效果：
采用了上述线性马达的触控装置的振动量确定方法、装置、终端及存储介质之后，通过获取仿真得到的线性马达在单位电压驱动下触控屏的频域响应；根据频域响应计算线性马达的马达振子的相对位移；根据线性马达的马达振子的相对位移，确定触控屏的极限稳态加速度；根据极限稳态加速度确定触控装置的最大的振动量，振动量作为触控装置的最大稳态振动量阈值，通过在在产品前期开发阶段确定线性马达在系统结构上的最大的振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低不必要的研发成本。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1为一个实施例中所述线性马达的触控装置的振动量确定方法的流程示意图；
图2为一个实施例中所述极限稳态加速度确定方法的流程示意图；
图3为一个实施例中所述所述相对位移计算方法的流程示意图；
图4为一个实施例中所述极限电压确定方法的流程示意图；
图5为一个实施例中所述极限稳态加速度确定方法的流程示意图；
图6为一个实施例中所述述线性马达的触控装置的振动量确定装置的结构示意图；
图7为一个实施例中运行上述线性马达的触控装置的振动量确定方法的计算机设备的内部结构示意图。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为解决目前还没有较好的触控方反馈结构设计和马达选型的规则，且不存在有效的仿真指导方案，影响了线性马达在汽车等产品中的应用，导致研发速度慢，研发成本较高。
基于上述问题，在本实施例中，特提出了一种线性马达的触控装置的振动量确定方法。该方法的实现可依赖于计算机程序，该计算机程序可运行于基于冯诺依曼体系的计算机系统之上。
如图1所示，本实施例的线性马达的触控装置的振动量确定方法适用于线性马达的触控装置，该线性马达的触控装置包括触控屏及用于驱动所述触控屏振动的线性马达，该线性马达的触控装置的振动量确定方法具体包括以下步骤：
步骤102：获取仿真得到的线性马达在单位电压驱动下触控屏的频域响应。
其中，频域响应是指系统信号的振幅和相位受频率变化而变化的特性，具体地，可以通过系统函数的形式描述。具体地，可以通过建立触控装置的结构系统的有限元仿真模型，在然后在仿真软件中进行频域仿真计算，获得结构系统在马达单位电压（1V）驱动下的频域响应。
步骤104：根据频域响应计算线性马达的马达振子的相对位移。
其中，相对位移是一段位移相对于参考位移的变化量，本实施例中的线性马达的马达振子的相对位移是指触控屏在马达运动方向上的绝对位移与马达振子的绝对位移之间的变化量。具体地，可以从频域响应中提取结构系统在线性马达振动方向上的加速度a
1和线性马达的马达振子的加速度a
2，分别根据加速度a
1和a
2计算触控屏在马达运动方向上的绝对位移u
1和马达振子的绝对位移u
2，然后根据触控屏在马达运动方向上的绝对位移u
1和马达振子的绝对位移u
2确定相对位移。
步骤106：根据线性马达的马达振子的相对位移，确定触控屏的极限稳态加速度。
其中，极限稳态加速度是指结构系统在达到极限位移下的恒定加速度，由于该稳态加速度为线性马达的马达振子达到极限位移下触控屏极限稳态加速度，因此，可作为确定该触控屏的最大稳态振动量阈值的基础数据。具体地，可以根据线性马达的马达振子的相对位移以及频域极限电压计算得到触控屏的极限稳态加速度，以便后续基于该稳态加速度确定触控装置的最大的振动量。
步骤108：根据极限稳态加速度确定触控装置的最大的振动量，振动量作为触控装置的最大稳态振动量阈值。
具体地，可以通过极限稳态加速度和重力加速度计算得到触控装置的最大的振动量，且该振动量作为触控装置的最大稳态振动量阈值，本实施例中，通过在在产品前期开发阶段确定线性马达在系统结构上的最大的振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低不必要的研发成本。
上述线性马达的触控装置的振动量确定方法中，通过获取仿真得到的线性马达在单位电压驱动下触控屏的频域响应；根据频域响应计算线性马达的马达振子的相对位移；根据线性马达的马达振子的相对位移，确定触控屏的极限稳态加速度；根据极限稳态加速度确定触控装置的最大的振动量，振动量作为触控装置的最大稳态振动量阈值，通过在在产品前期开发阶段确定线性马达在系统结构上的最大的振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低研发成本。
如图2所示，在一个实施例中，根据线性马达的马达振子的相对位移，确定触控屏的极限稳态加速度，包括：
步骤106A：根据基于超行程现象确定的极限位移和相对位移，计算线性马达的极限电压；
步骤106B：根据极限电压确定触控屏的极限稳态加速度。
其中，极限位移是指线性马达发生超行程现象时频域电压的临界值。假设某一型号的线性马达的极限位移u
c，当超过该极限位移为u
c，线性马达就会出现超行程现象。因此该结构系统下的极限电压可表示为u
c/u
r，u
r表示为相对位移。然后，基于极限电压可以确定触控屏的极限稳态加速度。
如图3所示，在一个实施例中，根据频域响应计算线性马达的马达振子的相对位移，包括：
步骤104A：从频域响应中提取触控屏在线性马达的振动方向上的第一绝对位移和线性马达的马达振子的第二绝对位移；
步骤104B：根据第一绝对位移和第二绝对位移计算得到相对位移。
具体地，从频域响应中提取触控屏在线性马达的振动方向上的第一绝对位移和线性马达的马达振子的第二绝对位移，然后计算第一绝对位移和第二绝对位移之间的差值，该差值的绝对值即为相对位移。例如，第一绝对位移和第二绝对位移分别为u
1和u
2，则abs(u
1-u
2)为线性马达的马达振子的相对位移。
在一个实施例中，根据基于超行程现象确定的极限位移和相对位移，计算线性马达的极限电压，包括：
计算基于超行程现象确定的极限位移与相对位移的比值，将比值作为线性马达的极限电压。
具体地，线性马达的极限电压为极限位移与相对位移两者之间的比值。
如图4所示，在一个实施例中，根据基于超行程现象确定的极限位移和相对位移，计算线性马达的极限电压，包括：
步骤106A1：计算基于超行程现象确定的极限位移与相对位移的比值；
步骤106A2：当比值大于预设的最大驱动电压时，确定线性马达的极限电压为最大驱动电压；
步骤106A3：当比值小于或等于最大驱动电压时，将比值作为线性马达的极限电压。
在这个实施例中，由于受限于线性马达的硬件电路的驱动能力，在实际应用中往往会存在最大驱动电压，因此，首先计算基于超行程现象确定的极限位移与相对位移的比值，根据比值与预设的最大驱动电压之间的大小关系，计算线性马达的极限电压，当比值大于预设的最大驱动电压时，线性马达的极限电压为最大驱动电压，当比值小于或等于最大驱动电压时，将比值作为线性马达的极限电压，从而进一步提高了线性马达的极限电压计算得准确性，以便后续基于该极限电压进行进一步处理。
如图5所示，在一个实施例中，根据极限电压确定触控屏的极限稳态加速度，包括：
步骤106B1：获取触控屏在达到极限位移时对应的单位加速度；
步骤106B2：根据单位加速度和极限电压计算得到极限稳态加速度。
其中，单位加速度是指线性马达在单位电压驱动下达到极限位移时的加速度。具体地，将单位加速度与极限电压进行乘法运算后的结果确定为极限稳态加速度。
在一个实施例中，所述根据所述极限稳态加速度确定触控装置的振动量，包括：
利用所述极限稳态加速度和预设的重力加速度确定触控装置的振动量的最大稳态振动量阈值。
具体地，将极限稳态加速度与预设的重力加速度进行除法运算后的结果确定为触控装置的振动量的最大稳态振动量阈值。
基于同一发明构思，本发明实施例提供一种线性马达的触控装置的振动量确定装置600，如图6所示，包括：频域响应获取模块602，用于获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；位移计算模块604，用于根据所述频域响应计算所述线性马达的马达振子的相对位移；加速度确定模块606，用于根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；振动量确定模块608，用于根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
具体地，本实施例的线性马达的触控装置的振动量确定装置600，如图6所示，包括：频域响应获取模块602，用于获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；位移计算模块604，用于根据所述频域响应计算所述线性马达的马达振子的相对位移；加速度确定模块606，用于根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；振动量确定模块608，用于根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。通过在在产品前期开发阶段确定线性马达在系统结构上的最大的振动量，为触控反馈结构设计优化和马达选型等提供仿真指导，从而可以加快研发进程，降低不必要的研发成本。
需要说明的是，本实施例中线性马达的触控装置的振动量确定的装置的实现与上述线性马达的触控装置的振动量确定的方法的实现思想一致，其实现原理在此不再进行赘述，可具体参阅上述方法中对应内容。
图7示出了一个实施例中计算机设备的内部结构图。该计算机设备具体可以是服务器，也可以是终端。如图7所示，该计算机设备700包括通过系统总线连接的处理器710、存储器720和网络接口730。其中，存储器720包括非易失性存储介质和内存储器。该计算机设备的非易失性存储介质存储有操作系统，还可存储有计算机程序，该计算机程序被处理器执行时，可使得处理器实现线性马达的触控装置的振动量确定的方法。该内存储器中也可储存有计算机程序，该计算机程序被处理器执行时，可使得处理器执行线性马达的触控装置的振动量确定的方法。本领域技术人员可以理解，图7中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图7中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
在一个实施例中，本申请提供的线性马达的触控装置的振动量确定的方法可以实现为一种计算机程序的形式，计算机程序可在如图7所示的计算机设备上运行。计算机设备的存储器中可存储组成所述线性马达的触控装置的振动量确定的装置的各个程序模块。比如，滤波模块602，门限获取模块604，判定模块606，振动量确定模块608。
在一个实施例中，提出了一种计算机设备，包括存储器和处理器，所述存储器存储有计算机程序，所述计算机程序被所述处理器执行时，使得所述处理器执行以下步骤：
获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；
根据所述频域响应计算所述线性马达的马达振子的相对位移；
根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；
根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
在一个实施例中，提出了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如下步骤：
获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；
根据所述频域响应计算所述线性马达的马达振子的相对位移；
根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；
根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于一非易失性计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。
Claims (10)
- 一种线性马达的触控装置的振动量确定方法，其特征在于，所述线性马达的触控装置包括触控屏及用于驱动所述触控屏振动的线性马达，所述方法包括：获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；根据所述频域响应计算所述线性马达的马达振子的相对位移；根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
- 如权利要求1所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度，包括：根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压；根据所述极限电压确定所述触控屏的极限稳态加速度。
- 如权利要求1所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据所述频域响应计算所述线性马达的马达振子的相对位移，包括：从所述频域响应中提取所述触控屏在所述线性马达的振动方向上的第一绝对位移和所述线性马达的马达振子的第二绝对位移；根据所述第一绝对位移和所述第二绝对位移计算得到所述相对位移。
- 如权利要求2所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压，包括：计算基于超行程现象确定的极限位移与所述相对位移的比值，将所述比值作为所述线性马达的极限电压。
- 如权利要求2所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据基于超行程现象确定的极限位移和所述相对位移，计算所述线性马达的极限电压，包括：计算基于超行程现象确定的极限位移与所述相对位移的比值；当所述比值大于预设的最大驱动电压时，确定所述线性马达的极限电压为所述最大驱动电压；当所述比值小于或等于所述最大驱动电压时，将所述比值作为所述线性马达的极限电压。
- 如权利要求2所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据所述极限电压确定所述触控屏的极限稳态加速度，包括：获取所述触控屏在达到所述极限位移时对应的单位加速度；根据所述单位加速度和所述极限电压计算得到所述极限稳态加速度。
- 如权利要求1所述线性马达的触控装置的振动量确定方法，其特征在于，所述根据所述极限稳态加速度确定所述触控装置的振动量，包括：利用所述极限稳态加速度和预设的重力加速度确定所述触控装置的振动量的最大稳态振动量阈值。
- 一种线性马达的触控装置的振动量确定装置，其特征在于，所述线性马达的触控装置包括触控屏及用于驱动所述触控屏振动的线性马达，所述装置包括：频域响应获取模块，用于获取仿真得到的所述线性马达在单位电压驱动下所述触控屏的频域响应；位移计算模块，用于根据所述频域响应计算所述线性马达的马达振子的相对位移；加速度确定模块，用于根据所述线性马达的马达振子的相对位移，确定所述触控屏的极限稳态加速度；振动量确定模块，用于根据所述极限稳态加速度确定所述触控装置的最大的振动量，所述振动量作为所述触控装置的最大稳态振动量阈值。
- 一种计算机设备，其特征在于，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求1至7中任一项所述线性马达的触控装置的振动量确定方法的步骤。
- 一种计算机可读存储介质，包括计算机指令，当所述计算机指令在计算机上运行时，使得计算机执行如权利要求1至7中任一项所述的线性马达的触控装置的振动量确定方法的步骤。
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