F. Yamanaka et T. Nishiya, APPLICATION OF THE INTELLIGENT ALARM SYSTEM FOR THE PLANT-OPERATION, Computers & chemical engineering, 21, 1997, pp. 625-630
A new alarm system which provides a qualitative description of process
data trends is presented in this paper. This description is based on
a method of marking process data with significant words. The objective
s of this system are (1) automatically to recognize a punctuation on a
process instead of plant operators, and (2) to develop a fundamental
technique for data trends monitoring systems by using a qualitative de
scription. Recently, this system was used to catch a fluctuation on a
real process before it became dangerous situation. Finally, more appli
cations of using a qualitative description for the plant operators whi
ch will be developed in the near future, and the method of detecting a
reasonable fluctuations are presented.