Title:
DATA MANAGEMENT DEVICE AND DATA MANAGEMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2017/002190
Kind Code:
A1
Abstract:
Provided is a data management device which accepts sensor data which a sensor has outputted, wherein the data management device: classifies the values of the sensor data into preset clusters, and generates cluster data which includes timestamps of the sensor data, identifiers of the sensors, and the clusters; generates a two-dimensional array which stores the clusters in array elements formed from a sensor axis with the identifiers of the sensors from the cluster data as elements, and a timestamp axis with the timestamps of the sensor data from the cluster data as elements; generates blocks in which the sensor axis array elements from the two-dimensional array are rearranged along the timestamp axis; generates a cluster block of sensor sets of the sensor identifiers for each timestamp set of the timestamps from one or more blocks with the cluster with the greatest appearance rate as a representative value; and stores the generated cluster blocks in cluster block data.
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Inventors:
NAKAGAWA HIROMITSU (JP)
MURO KEIRO (JP)
EGI MASASHI (JP)
MURO KEIRO (JP)
EGI MASASHI (JP)
Application Number:
PCT/JP2015/068784
Publication Date:
January 05, 2017
Filing Date:
June 30, 2015
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G06F17/30
Foreign References:
| JP2006330988A | 2006-12-07 | |||
| JP2015109028A | 2015-06-11 | |||
| US20110258203A1 | 2011-10-20 |
Attorney, Agent or Firm:
TOU-OU PATENT FIRM (JP)
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