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SYSTEM AND METHOD FOR MEASURING A HEALTH INDEX OF A PLANT

  • US 20160363928A1
  • Filed: 08/24/2016
  • Published: 12/15/2016
  • Est. Priority Date: 09/09/2011
  • Status: Active Grant
First Claim
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1. A system for measuring a health index of a plant, comprising:

  • a plant having a tree structure and includinga first level layer being a lowest level layer,a second level layer being a higher level layer than the first level layer, the second level layer including a plurality of components;

    at least one sensor disposed in the plant to collect actual measurement values from the components;

    a measuring unit connected to the plant via a wire or wireless communication manner and receiving the actual measurement values from the sensor to calculate the health index, the measuring unit includinga memory storing data including the actual measurement values and an operation history of the first level layer of the plant,an expected value calculation processor calculating an expected value of each of the components of the first level layer using data in the memory,an index value calculation processor calculating a tag index of said each of the components of the first level layer by comparing the expected value with an actual measurement value of said each of the components,a deviation average calculation processor calculating deviation values between the respective components of the first level layer and calculating a deviation average value by averaging the deviation values,a correction value calculation processor calculating a correction value of said each of the components of the first level layer based on the deviation average value of the components of the first level layer,a tag index average calculation processor calculating an tag index average value of the components of the first level layer by averaging tag indices of the components of the first level layer,an index calculation processor calculating an group index of a component of the second level layer to which the first level layer belongs, wherein the group index of the component of the second level layer is determined by selecting a greater one of;

    a first value obtained by multiplying the correction value and the tag index average value of the components of the first level layer, anda second value which is the lowest tag index among the tag indices of the components of the first level layer.

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