US 12,250,237 B2
Anomaly detection device, anomaly detection method, and recording medium
Hajime Tasaki, Osaka (JP); and Takamitsu Sasaki, Osaka (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Feb. 15, 2022, as Appl. No. 17/671,781.
Application 17/671,781 is a continuation of application No. PCT/JP2020/042426, filed on Nov. 13, 2020.
Claims priority of application No. 2020-007096 (JP), filed on Jan. 20, 2020.
Prior Publication US 2022/0174084 A1, Jun. 2, 2022
Int. Cl. G07C 5/08 (2006.01); H04L 9/40 (2022.01)
CPC H04L 63/1425 (2013.01) [G07C 5/0808 (2013.01); G07C 5/0816 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An anomaly detection device, comprising:
a communication interface that obtains vehicle information related to a status of a vehicle and including location data indicating a location of the vehicle;
a model storage that stores, for each of a plurality of cells of a grid imposed on a map, an evaluation model for evaluating the vehicle information of the vehicle located at a first cell of the plurality of cells; and
a processor that calculates, based on the vehicle information and evaluation models each being the evaluation model, an anomaly level indicating a degree of anomaly of the vehicle information, determines, based on the anomaly level, whether the vehicle information is anomalous, and outputs a determination result, the evaluation models corresponding to evaluation cells including the first cell including the location of the vehicle indicated in the location data and one or more second cells each having a predetermined positional relationship with the first cell.