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Apparatus and method for monitoring abnormal state of vehicle using clustering technique

  • US 9,075,701 B2
  • Filed: 04/30/2013
  • Issued: 07/07/2015
  • Est. Priority Date: 05/04/2012
  • Status: Expired due to Fees
First Claim
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1. A method for monitoring an abnormal state of a vehicle using a clustering technique, comprising:

  • transforming, using a hardware computing device, Control Area Network (CAN) data collected from an Electronic Control Unit (ECU) mounted on the vehicle, into coordinates on a distribution map in a multidimensional space, in accordance with a range of the coordinates on the distribution map;

    analyzing, using the hardware computing device, the distribution map to thereby determine a number of clusters to be formed, and selecting the determined number of initial center points for forming the clusters;

    clustering, using the hardware computing device, the coordinates on the distribution map based on the initial center points, to thereby generate the clusters;

    extracting, using the hardware computing device, at least one piece of data from each of the clusters, and calculating, for each cluster, a state feature using a difference between maximum and minimum values of an attribute of the at least one piece of data; and

    monitoring, using the hardware computing device, a current state of the vehicle based on current CAN data of the vehicle and the state features of the generated clusters, includingfinding, using the hardware computing device, one of the generated clusters that has a state feature identical to a state feature of a cluster corresponding to coordinates transformed from the current CAN data; and

    determining, using the hardware computing device, whether the state feature of the found cluster corresponds to a normal state,upon determining that the state feature of the found cluster corresponds to the normal state, terminating the monitoring; and

    upon determining that the state feature of the found cluster corresponds to an abnormal state, notifying a vehicle driver of a danger.

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