Broken belt detection method and device for belt conveyor

The invention discloses a belt conveyor belt breakage detection method and device. The belt breakage detection method for the belt conveyor comprises the steps that running speed rising amount data or running speed falling amount data of a conveying belt are obtained; acquiring driving motor torque rise data or driving motor torque drop data; belt tension rising amount data or belt tension falling amount data are obtained; extracting the characteristic of the running speed rising quantity data or the running speed falling quantity data of the conveying belt as a first characteristic; extracting the characteristic of the driving motor torque rising quantity data or the driving motor torque falling quantity data as a second characteristic; extracting the characteristic of the belt tension rising quantity data or the belt tension falling quantity data as a third characteristic; a trained belt conveyor broken belt model is obtained; the obtained features are input into the belt conveyor broken belt model, so that