Data processing device, control system, data processing method, and program

The invention provides a data processing apparatus, a control system, a data processing method, and a program. A data processing device (1), which estimates a limit [formula 140] G (infinity) in [formula 144] t = infinity of a controllability Gramer [formula 138] G (t) defined by [formula 2] (BB), when [formula 1] (AA) is established, where [formula 142] X (t) is an n-dimensional vector indicating a state of a control object, [formula 139] u (t) is an m-dimensional vector indicating a control input, A is an unknown n * n matrix, and B is a known n * m matrix, is provided with: a data acquisition unit (10) that acquires data from the data acquisition unit (10) when [formula 1] (AA) is established, and estimates the limit [formula 140] G (infinity) in [formula 144] t = infinity [formula 138] G (t); the state data acquisition unit acquires a group of time-series state data in q time intervals [formula 4] [ti1, ti2] (i = 1, 2,..., q) when [formula 39] u (t) Xi < 0] [formula 5] x ([t11, t12], x11), x ([t21, t22],