Motor rotation speed detection system and method and storage medium

Abstract

An embodiment of the invention discloses a motor rotation speed detection system and method and a storage medium. The system comprises a motor mounting base plate, a concave groove arranged on the motor mounting base plate, a blocking detection sensor component and a controller connected with the blocking sensor component, wherein the concave groove is used for forming the rotation channel of thepropeller blades of a to-be-detected motor; the blocking detection sensor component is arranged in the lateral wall of the concave groove and used for detecting the propeller blades passing the concave groove and transmitting the detection result to the controller; the control is used for calculating the rotation speed of the to-be-detected motor according to the received detection result. By thearrangement, the motor rotation speed detection system has the advantages that under the premise that the original mechanical structure and physical properties of the motor are not destroyed and no professional detection equipment is used, motor rotation speed calculation errors are eliminated, and motor rotation speed detection efficiency and accuracy are increased.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of motors, and in particular to a motor speed detection system, method and storage medium. Background technique [0002] With the development of science and technology, the application of motors has been involved in various application fields, such as security monitoring equipment, automatic control equipment and so on. In order to ensure the normal operation of the equipment, it is necessary to detect and control the speed of the motor. [0003] At present, the methods for testing the speed of the motor mainly include the following: (1), relying on the back electromotive force of the phase line to detect the speed of the motor: from the phase line connection to the oscilloscope to observe the voltage signal waveform to calculate the speed. (2) Use Hall sensor: Use its magnetic field-potential conversion relationship to detect the number of pulses to calculate the motor speed. (3)...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has the following defects: the method of detecting the motor speed by relying on the back electromotive force of the phase line depends on other hardware devices such as an oscilloscope, and the motor cannot be detected without an oscilloscope and other equipment. Speed ​​detection; the method of using Hall sensor to detect motor speed needs to install a Hall sensor on a certain position of the motor rotor, thus destroying the original mechanical structure and physical characteristics of the motor, and the calculated speed will introduce errors; grating method It is necessary to fix the disc on the motor shaft, which also destroys the original mechanical structure and physical characteristics of the motor, and the calculated speed will introduce errors

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