Patent ID: 6674719
Filing Date: 2004-01-06
Classification: H04M,H04Q

Abstract:
A method for performing monitoring, controlled by a Quotient algorithm, of disturbances apt to occur at random or in bursts in a physical process, said method comprising the steps of:defining an abnormal event regarded to be a disturbance; defining a base against which disturbances are to be counted; designing the Quotient algorithm by setting a base-event threshold H and a disturbance threshold T; monitoring the disturbances of the physical process by counting base events, counting disturbances and using the Quotient algorithm to selectively raise an alarm; determining for the physical process, a value F of a peakedness factor defined as the ratio of the variance to mean of occurrences of disturbances in the physical process based on the disturbance-counting values acquired in the monitoring peakedness being used as a measure of how bursty the disturbances are; and adjusting at least one of said base-event threshold H and said disturbance threshold T of said Quotient algorithm based on at least said value F of the peakedness factor.