Early warning system capable of sending warning signal according to monitor data

摘要

An early warning system includes functional equipment, a first monitor unit, a second monitor unit, a calculation unit and a warning unit. The functional equipment is used to perform a functional operation. The first monitor unit is used to monitor the functional equipment so as to obtain a set of first data during a first period. The second monitor unit is used to monitor the functional equipment to obtain a set of second data during the first period. The calculation unit is used to receive the set of first data and the set of second data, obtain a correlation coefficient according to the set of first data and the set of second data, and compare the correlation coefficient with a threshold value. The warning unit is linked to the calculation unit and used to send a warning signal when at least the correlation coefficient reaches the threshold value.