METHOD, DEVICE AND PROGRAM FOR DETECTING RADIO COMMUNICATION ABNORMALITY
PROBLEM TO BE SOLVED: To reduce a processing load at radio fault analysis.SOLUTION: A gateway 10 includes: a valid parameter determination unit 40 which determines a valid parameter, on the basis of the values of a plurality of parameter types, indicative of radio quality with a sensor node, stored...
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Main Authors | , , , |
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Format | Patent |
Language | English Japanese |
Published |
11.01.2018
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To reduce a processing load at radio fault analysis.SOLUTION: A gateway 10 includes: a valid parameter determination unit 40 which determines a valid parameter, on the basis of the values of a plurality of parameter types, indicative of radio quality with a sensor node, stored in a radio state DB 32; and an analysis unit 42 which classifies the parameter values collected in a predetermined period, among the parameter values determined to be a valid parameter, into a plurality of clusters, so as to analyze radio quality deterioration on the basis of the plurality of classified clusters. The valid parameter determination unit includes: a representative value calculation unit 14 which divides each predetermined period into a plurality of sections to calculate the representative value of each parameter in each of the plurality of sections; and a determination unit 20 which determines a parameter, having the standard deviation of the representative values in the predetermined period is larger than a threshold, to be a valid parameter.SELECTED DRAWING: Figure 3
【課題】無線障害分析の際の処理負荷を低減する。【解決手段】ゲートウェイ10は、無線状況DB32に記憶されたセンサノードとの間の無線品質を示す複数種類のパラメータの値に基づいて、有効なパラメータを決定する有効パラメータ判定部40と、有効なパラメータと決定されたパラメータの値のうち所定期間内に収集されたパラメータの値を複数のクラスタに分類し、分類した複数のクラスタに基づいて無線品質の悪化を分析する分析部42と、を備えている。有効パラメータ判定部は、所定期間を複数区間に分け、複数区間それぞれの各パラメータの代表値を算出する代表値算出部14と、所定期間における代表値の標準偏差が閾値より大きいパラメータを、有効なパラメータと判定する判定部20と、を有している。【選択図】図3 |
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Bibliography: | Application Number: JP20160132051 |