Patent ID: 11891762
Assignee: CATERPILLAR PAVING PRODUCTS INC.
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E

Claim 11:
12. A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by one or more processors, causes the one or more processors to perform a method comprising:
receiving vibration data from a vibration sensor disposed relative to a rotor of a milling machine, the vibration sensor sensing vibration associated with a cutting operation of the rotor of the milling machine;
determining during the cutting operation that the cutting operation has transitioned from the rotor cutting a first material to the rotor cutting a second material that is harder than the first material by a predetermined hardness threshold amount; and
controlling cutting operations of the milling machine responsive to said determining indicating that the cutting operation has transitioned from the rotor cutting the first material to the rotor cutting the second material,
wherein said controlling the cutting operations of the milling machine includes controlling a speed of the milling machine moving in a cutting direction, a cutting level or a depth of the rotor, and/or a rotational speed of the rotor, and
wherein said determining that the cutting operation has transitioned from the rotor cutting the first material to the rotor cutting the second material occurs under a condition that spikes of vibration amplitude and/or spikes of vibration frequency above a predetermined vibration value are identified to be greater in number than a predetermined number of spikes.