Motor vibration signal generation method, device, computer equipment and storage medium

Abstract

The embodiment of the present invention discloses a motor vibration signal generation method. By obtaining the initial data of the motor, the initial data includes the target center frequency, boundary condition values ​​and nonlinear parameters of the motor vibrator; according to the target center frequency, initial displacement starting point, initial displacement For the end point and nonlinear parameters, the target displacement signal of the motor is calculated by using the nonlinear forward model of the motor; based on the target displacement signal and nonlinear parameters, the target excitation voltage signal of the motor is calculated by using the nonlinear inverse model of the motor. Since the target excitation voltage signal is based on the target center frequency, it is calculated through the nonlinear inverse model of the motor, which ensures the accuracy of the calculation of the target excitation voltage signal. Vibration makes the vibration signal of the motor short, the vibration sense is strong and the frequency is diversified, the tactile effect of the motor is improved, and the precise control of the vibration of the motor is realized.

Description

【Technical field】 [0001] The present invention relates to the technical field of vibration motors and signal processing, and in particular, to a method, device, computer equipment and storage medium for generating a motor vibration signal. 【Background technique】 [0002] With the wide use of various smart devices and electronic touch screens, the application of tactile feedback in electronic products has received more and more attention. For example, the diversity of application scenarios requires rich tactile effects to distinguish different scenarios, so as to improve the tactile feedback. The design of the effect poses a great challenge, especially the short signal with short time, strong vibration and various frequencies is highly praised in electronic products. How to design short signals with different frequencies of strong seismic sensation is also the goal that designers are constantly pursuing. [0003] However, in the pursuit of low cost and high performance, the ...

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Problems solved by technology

[0003] However, in the process of pursuing low cost and high performance of the motor, the nonlinearity of the motor is getting higher and higher, and it is limited by the motor capacity and voltage output capacity constraints, resulting in long vibration signal time, weak vibration feeling and single frequency of the motor. , which makes the motor vibration signal less effective and reduces the tactile effect

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