Patent ID: 9227793
Filing Date: 2016-01-05
CPC Classification: B65G

Claim Text:
1. A system for monitoring a condition of a conveyor belt arranged to rotate about at least a drive pulley and an idler pulley, where an electrical motor is arranged to drive the drive pulley, the system comprising: at least one data processing unit; at least one sensor unit arranged to determine at least one sensor signal representing at least one operating variable of an electrical motor, the at least one data processing unit being configured to: derive from the at least one sensor signal at least one corresponding time dependent data signal; detect irregularities in the at least one data signal which indicate that a splice region of a conveyor belt passes the drive pulley and/or the idler pulley; determine from a change in shape or frequency of the irregularities whether a condition of the conveyor belt has changed; and send a monitoring output signal which reflects a change in the condition of the conveyor belt to at least one of a display unit, a storage unit and/or a decision making unit.