Method and device for calculating the steady-state time point of a controller
AssigneeRohde & Schwarz GmbH & Co. KG
InventorThomas Kuhwald
Life of this patent
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Abstract
A device for calculating the steady state behavior of a controller includes an amount generating unit for generating the amount of deviation of the regulator, a first threshold value calculation unit that detects whether the amount of deviation of the regulator has fallen below a first threshold value and then starts a lag time delay unit, and a second threshold value calculation unit that detects whether the amount of deviation of the regulator has fallen below a second threshold value. A signal transmission unit transmits a ready message signal when the lag time delay unit has reached a predetermined lag time and the second threshold value calculation unit has detected that the amount of deviation of the regulator has fallen below the second threshold value.
Claims14
A method for calculating the time point at which a controller enters steady state, comprising:
- detecting whether an amount of deviation of the controller falls below a first threshold value;
- starting a lag time when the amount of deviation of the controller falls below the first threshold value for the last time;
- after the lag time has expired, detecting whether the amount of deviation of the controller falls below a second threshold value;
- and
- determining that the controller has entered steady state when, after the lag time has expired, the amount of deviation of the controller has fallen below the second threshold value for the first time.
A device for calculating the steady state time of a controller, comprising:
- an amount generating unit configured for generating an amount of deviation of the controller;
- a first threshold value calculation unit configured for calculating whether the amount of deviation of the controller has fallen below a first threshold value and then starting a lag time delay unit;
- a second threshold value calculation unit configured for calculating whether the amount of deviation of the controller has fallen below a second threshold value;
- and
- a first signal transmission unit configured for transmitting a ready message signal (when the lag time delay unit has attained a predetermined lag time and the second threshold value calculation unit has detected that the amount of deviation of the controller has fallen below the second threshold value.
Dependencies are inferred from the claim text.