Patent Document ID: 10164820
Application ID: 15393845
Patent Status: 1

Claim One:
1. A device for detecting radio communication anomalies, the device being capable of communicating with a sensor node via radio waves, the device comprising: a memory; and a processor coupled to the memory and configured to: gather and store different parameters in a storage unit, the different parameters indicating a quality of radio communication with the sensor node; classify parameter sets into a plurality of clusters, each of the parameter sets containing specific parameters gathered during a prescribed time period among the parameters stored in the storage unit; estimate that a rapid radio quality degradation has occurred during the prescribed time period when there is a cluster of which all average values of specified parameters among the different parameters degrade more than those of another cluster; perform a trend analysis of each of the different parameters for a time period during which it is not estimated that the rapid radio quality degradation has occurred to determine whether each of the different parameters gathered during the time period exhibits a trend of degradation, the trend analysis analyzing a trend of change in each of the different parameters for the time period; and estimate that a slow radio quality degradation has occurred when there is a parameter exhibiting a trend of degradation among the different parameters.