JPS5769401A - Automatic control system - Google Patents

Automatic control system

Info

Publication number
JPS5769401A
JPS5769401A JP14548580A JP14548580A JPS5769401A JP S5769401 A JPS5769401 A JP S5769401A JP 14548580 A JP14548580 A JP 14548580A JP 14548580 A JP14548580 A JP 14548580A JP S5769401 A JPS5769401 A JP S5769401A
Authority
JP
Japan
Prior art keywords
opening
extent
water level
target
gate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14548580A
Other languages
Japanese (ja)
Inventor
Kohei Takeno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14548580A priority Critical patent/JPS5769401A/en
Publication of JPS5769401A publication Critical patent/JPS5769401A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)
  • Control Of Non-Electrical Variables (AREA)

Abstract

PURPOSE:To exercise hunting-free stable control by obtaining a true value for a target water level, by providing a detector, which measures the extent of opening of gate facilities, to an automatic control system which obtains the target-value extent of opening by controlling a gate, a valve, etc. CONSTITUTION:A target water level set by a setter 1 and an actual water level by detector 5 are compared mutually to obtain the difference between the both, and at the same time, an opening-closure signal is obtained which corresponds to the fluctuations of the extent of opening inputted from a detector 6 to gate facilities 3. Therefore, a controller 2 is unable to know the extent of opening of the gate facillities 3 directly for the target water level, but the extent of opening corresponding to the target value exists between a maximum and a minimum value in a period right before the point in time, so it is able to approximate the actual water level to the target value by detecting the target-value extent of opening, thereby reducing waterlevel fluctuations due to hunting asymptotically. In the figure, 4 is controlled object (e.g. water level) controlled by the gate facillities.
JP14548580A 1980-10-16 1980-10-16 Automatic control system Pending JPS5769401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14548580A JPS5769401A (en) 1980-10-16 1980-10-16 Automatic control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14548580A JPS5769401A (en) 1980-10-16 1980-10-16 Automatic control system

Publications (1)

Publication Number Publication Date
JPS5769401A true JPS5769401A (en) 1982-04-28

Family

ID=15386343

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14548580A Pending JPS5769401A (en) 1980-10-16 1980-10-16 Automatic control system

Country Status (1)

Country Link
JP (1) JPS5769401A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544602A (en) * 1978-09-25 1980-03-29 Hitachi Ltd Gate opening data check method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544602A (en) * 1978-09-25 1980-03-29 Hitachi Ltd Gate opening data check method

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