Vibration detection method based on millimeter wave radar and terminal

Abstract

The invention discloses a millimeter wave radar-based vibration detection method and terminal, and the method comprises the following steps: positioning and distinguishing a vibration object, and obtaining an original signal sequence; a curve segmentation fitting processing method is adopted on the IQ plane, the original signal sequence is divided into two segments on the IQ plane with a static point as a curve demarcation point, fitting is carried out respectively, positive and negative displacement is restored, and an original vibration signal is obtained; processing the time-frequency diagram of the original vibration signal by using a convolutional network with a jump connection layer, and removing additive noise and multiplicative noise to obtain an enhanced vibration signal; and the enhanced vibration signal is judged, and if abnormity occurs, a processing notice is sent out. According to the invention, a non-intrusive sensing technology is adopted, a machine does not need to be transformed, and vibration sensing is realized through millimeter wave wireless radio frequency signals.

Description

technical field [0001] The invention belongs to the technical field of millimeter-wave radar passive perception and industrial Internet, and in particular relates to a vibration detection method and terminal based on a millimeter-wave radar. Background technique [0002] Vibration is one of the most common phenomena in industrial scenarios. Since equipment damage or abnormality will directly lead to abnormal vibration characteristics of industrial equipment, the vibration of industrial equipment can usually clearly reflect the internal working state of the equipment. However, due to the complexity of the actual industrial scene, it is difficult to detect machine failures in time by relying only on regular inspections by the staff using listening and vibration measurement, resulting in major production accidents. Therefore, we need an intelligent automatic machine vibration detection system to notify and warn the staff in time when the machine produces abnormal vibration. ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a vibration detection method and terminal based on millimeter-wave radar, so as to solve the problem that it is difficult to detect in time only by the regular inspection of the staff in the existing machine vibration detection technology. The problem of dealing with unexpected situations; the invention adopts non-intrusive sensing technology, does not need to modify the machine, and realizes vibration sensing through millimeter wave wireless radio frequency signals

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