A method, device, electronic governor and unmanned aerial vehicle for motor sound

Abstract

The embodiments of the present application relate to a method and a device for sounding by means of a motor, an electronic variator and an unmanned aerial vehicle, said method comprising: a motor controller controlling a motor driver to apply a pulse voltage to at least one phase winding of a motor, so as to cause the rotor of the motor to vibrate and cause the motor to play a piece of music, the piece of music being composed of a plurality of different sounds, each of the sounds being generated by applying, in at least one phase winding of the motor, a pulse voltage including at least two frequencies, the frequencies of the pulse voltages respectively being 1 / T1,..., 1 / TN, where N is a natural number and N≥2. In the embodiments of the present application, a motor driver is controlled to apply, into at least one phase winding of the motor, a pulse voltage including at least two frequencies, so as to cause the rotor of the motor to vibrate and cause the motor to make a sound, and the motor makes a plurality of different sounds to form a piece of rich-toned music with more pleasant sounds.

Description

technical field [0001] The embodiments of the present invention relate to the field of motor control, in particular to a motor sounding method, device, electronic governor and unmanned aerial vehicle. Background technique [0002] Motors are widely used in production and life. In some applications of motors, due to cost or application limitations, it is impossible to use common horns or buzzers to make sounds, but it is necessary for motors to make sounds in order to to the reminder effect. For example, for an unmanned aerial vehicle, in order to improve the user experience, when the unmanned aerial vehicle is turned on, it is necessary to give a prompt to the user by emitting a sound through the motor. [0003] During the process of implementing the present invention, the inventors found at least the following problems in related technologies: the current motor can only produce sound simply, so the timbre is relatively monotonous and jerky, the sound is harsh, and the user...

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the related technologies: the current motor can only produce sound simply, so the tone is relatively monotonous and jerky, the sound is harsh, and the user experience is not good

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