Patent ID: 7624857

Claim:
A device for monitoring a conveyor, comprising: a conveyor belt made of elastomer material, having a carrying side for the goods to be conveyed, and a running side, wherein the conveyor belt has an embedded strength support; an optoelectronic system that optically detects at least one of the carrying side and the running side, said optoelectronic system recognizing damage during operation, and if a critical state of the conveyor belt is reached, triggering at least one alarm selected from the group consisting of an acoustical alarm and an optical alarm; a process computer coupled with the optoelectronic system for evaluating all data, wherein the process computer is connected with at least one of the at least one alarm and a drive control; and other system parts selected from the group consisting of contact drums, support rollers, and support scaffolding; wherein the device is additionally equipped with at least one structure-borne noise sensor, anchored in a bore of at least one of the contact drum and the support rollers, with a non-positive lock, said at least one structure-borne noise sensor detecting deviations from a reference frequency, wherein the process computer is connected with the structure-borne noise sensor, evaluates a change in frequency using reports from the optoelectronic system, and triggers at least one of the at least one alarm and an automatic shut-down of the conveyor even when the optoelectronic system does not report a critical state.