Normal and abnormal data partitioning method and system for multivariable alarming system
An alarm system and abnormal data technology, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve problems such as failure and unreachability, and achieve the effects of reducing false alarm rate, reducing noise, and high computing speed
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[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0037] like Figure 12 As shown, the embodiment of the present invention provides a method for dividing normal and abnormal data of a multivariable alarm system, comprising the following steps:
[0038] S1, select the minimum time length τ and the minimum deviation Δ for judging whether there is a change in the signal, and construct the change direction combination relationship matrix R of each variable in the normal state.
[0039] Specifically, select the appropriate minimum time length τ and minimum deviation Δ. These two variables are used to define and identify the phase of the signal. That is, the time interval is less than τ and the Euclidean distance ||x(t+Δt)-x(t)|| 2 Two data points less than Δ should b...
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