DATA MANAGEMENT APPARATUS, DATA MANAGEMENT METHOD AND DATA MANAGEMENT PROGRAM

摘要

An apparatus includes: a first range data storage section 21 for storing as first range data upper and lower limit values of process data, and a first reference point of time, while associating the upper and lower limit values with the first reference point of time; a second range data storage section 22 for storing as second range data upper and lower limit values of process data acquired in each second period, and a second reference point of time, while associating the upper and lower limit values with the second reference point of time; a sampling data storage section 113b for storing as sampling data process data including a chronological change, and an elapsed time from a reference point of time, while associating the process data with the elapsed time; and a storage controller 111a for storing the first range data, the second range data and the sampling data.

主权项

1. A data management apparatus comprising:
a first range data storage section configured to store, as first range data, an upper limit value and a lower limit value of process data acquired from a monitoring target in each first period from a reference point of time, and a first reference point of time which is a start time for the first period, while associating the upper and lower limit values with the first reference point of time; a second range data storage section configured to store, as second range data, an upper limit value and a lower limit value of the process data acquired from the monitoring target in each second period from the reference point of time, the second period being shorter than the first period, and a second reference point of time which is a start time for the second period, while associating the upper and lower limit values with the second reference point of time; a sampling data storage section configured to store, as sampling data, the process data acquired from the monitoring target and including a chronological change, and an elapsed time from the reference point of time, while associating the process data with the elapsed time; and a storage controller configured, on the basis of the process data acquired from the monitoring target, to generate the first range data and to store the generated first range data into the first range data storage section in each first period, to generate the second range data and to store the generated second range data into the second range data storage section in each second period, and to generate the sampling data and to store the generated sampling data into the sampling data storage section in each second period.