Instant Identification and Judgement on Engineering Project System States under Different Norm Value

Abstract

The problem of instant identification and judgement on engineering project system states brings disadvantageous affection to automatic analysis and diagnosis of the engineering project implement states diagnosis system. In order to solve the problem, the nonlinear systematic state and its evolution process is analyzed at first, and the inner relationship among information gain, Eulidean norm and systematic state change is found. Then, according to Lyapunov system stability theory, a new method to instant identify and judge by Euclidean norm to engineering project system state is put forward under the premise of information gain. Through simulation test by Matlab, the respective test effects to instant identify and judge engineering project system states are obtained when the norm is severally 1.0, 1.414 and 1.732. The result shows that system state will appear obvious changes after the system emerges three or more information asymmetries. Finally, it is proved by real engineering experiments that this new method can meet the practical using requirements and 1.732is a key threshold in the aspect of instant identification and judgement engineering project system states.