Title:
CONTROLLING SYSTEM FOR COPING WITH EMERGENCY
Document Type and Number:
Japanese Patent JPS595303
Kind Code:
A
Abstract:
PURPOSE:To detect an accident, also to execute automatically an emergency operation, and to secure the safety, by estimating a state in a plant by use of a process signal measured by the plant, and feeding back a quantity which is proportional to the estimated value. CONSTITUTION:An output variate of a plant 2 is inputted to a state estimating device 12 through a measuring instrument 4. An estimated value of an internal state of the plant 2, which is obtained by a state estimating device 12 is inputted to an abnormal time control device 16 and a circuit 19 having a reverse response characteristic of a measuring system 4. Abnormality is detected by an abnormality detecting device 20, and is provided to a switching circuit 17 by its output. The cause of abnormality or an accident is diagnosed by a diagnosing device 21 of abnormality or an accident. A guidance device 23 is prepared in order to execute an operation guidance for a safe system operation in accordance with said diagnostic result. An operation to be operated by an operator is displayed by a display 24. An output of the switching circuit 17 is fed back to an operating system 14.
Inventors:
FUKUNISHI HIROARI
Application Number:
JP11396982A
Publication Date:
January 12, 1984
Filing Date:
July 02, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B9/02; G05B23/02; (IPC1-7): G05B23/02
Attorney, Agent or Firm:
Akio Takahashi
Next Patent: JPS595304