Nec Corporation

Takashi Konashi

Satoru Yamano

Kazuhiko Isoyama

Yoshiaki Sakae

Jun Nishioka

Shohei Mitani

A vehicle monitoring system according to the present disclosure includes: an optical fiber for sensing () laid on a road (); a vehicle passage detection unit () configured to detect that a vehicle () has passed a predetermined location on the road (); an identification unit () configured to identify the vehicle () that has passed the predetermined location as a vehicle-to-be-monitored; and a reception unit () configured to receive sound information unique to the vehicle-to-be-monitored detected by the optical fiber for sensing (), in which the identification unit () identifies the vehicle-to-be-monitored based on the sound information unique to the vehicle-to-be-monitored.

Vehicle monitoring system, vehicle monitoring method, and vehicle monitoring apparatus

A time-series data processing systemaccording to the present invention includes a comparison unitconfigured to compare a feature amount of each of pieces of partial time-series data in a plurality of specific periods at different positions on a time axis in first time-series data and a feature amount of each of pieces of partial time-series data in a plurality of periods located in correspondence with a positional relationship among the plurality of specific periods in second time-series data, and a detection unitconfigured to detect a specific state in the second time-series data based on a result of the comparison.

Time-series data processing method, time-series data processing device, time-series data processing system, and recording medium

A policy evaluation apparatus () acquires, with respect to each of a plurality of control groups () including an evaluation target group, control policies (). Each of the control policy () indicates execution permission/non-permission of an application. Further, the policy evaluation apparatus () compares an evaluation target policy being the control policy () of the evaluation target group with other plurality of control policies (), and generates evaluation information () based on the comparison result.

Policy evaluation apparatus, control method, and program

An abnormality detection apparatus () detects a start of a predetermined operation in a terminal (). The abnormality detection apparatus () acquires reference information () representing a reference of abnormality detection of the terminal () after the predetermined operation is started. After it is detected that the predetermined operation is started, the abnormality detection apparatus () detects abnormality of the terminal () by using the acquired reference information ().

Abnormality detection apparatus, control method, and program

A surveillance device according to the present invention includes: a memory; and at least one processor coupled to the memory. The processor performs operations. The operations includes: calculating, based on a value of a parameter that is contained in a received data frame and represents a state of an apparatus, a change in the state of the apparatus; and determining whether the change is included in an allowable range determined in accordance with the state of the apparatus before the change.

Surveillance device, learning device, surveillance method and storage medium

An extraction device includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: sort each set of frames that have the same identifier associated with a node, into frames maintaining a cycle and frames out of the cycle; and extract, as an event rule, a feature of a bit change in a data field related to an event occurrence, from the frames that have the same identifier and are out of the cycle.

Growing community of inventors

Tokyo, Japan

Takashi Konashi