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JPS54159569A - Control for number of operating apparatus - Google Patents

Control for number of operating apparatus

Info

Publication number
JPS54159569A
JPS54159569A JP6763578A JP6763578A JPS54159569A JP S54159569 A JPS54159569 A JP S54159569A JP 6763578 A JP6763578 A JP 6763578A JP 6763578 A JP6763578 A JP 6763578A JP S54159569 A JPS54159569 A JP S54159569A
Authority
JP
Japan
Prior art keywords
block
pumps
pump
decided
time
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
JP6763578A
Other languages
Japanese (ja)
Inventor
Yasuyuki Kuroda
Masahiko Kashiwagi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6763578A priority Critical patent/JPS54159569A/en
Publication of JPS54159569A publication Critical patent/JPS54159569A/en
Pending legal-status Critical Current

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  • Feedback Control In General (AREA)

Abstract

PURPOSE: To make operations of apparatus uniform by employing such a way: continous operation time of the apparatus is obtained, when the time exceeds a specified value, the corresponding apparatus is stopped, an apparatus which satisfies the expected requirement is run in place of the former.
CONSTITUTION: The pump plant of the waterworks feeds the original water stored the reservoir 1 to the water pipe 4 by means of a multiplicity of pumps 2 controlled by the control unit 3 for the number of apparatus. In the control unit 3, the number of pumps 2 in operation is obtained in the block 6 when the processing is started in the block 5, and the continuous operation time of the pumps 2 in operation is obtained in the block 12 when the fact that the number of running pumps is not modified is not modified is decided. Whether the pump operating time of which exceeds a fixed value is present is decided in the block 13, the pump to start or stop is determined through the block 14 if such a pump exceeding the fixed value is present.
COPYRIGHT: (C)1979,JPO&Japio
JP6763578A 1978-06-07 1978-06-07 Control for number of operating apparatus Pending JPS54159569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6763578A JPS54159569A (en) 1978-06-07 1978-06-07 Control for number of operating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6763578A JPS54159569A (en) 1978-06-07 1978-06-07 Control for number of operating apparatus

Publications (1)

Publication Number Publication Date
JPS54159569A true JPS54159569A (en) 1979-12-17

Family

ID=13350635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6763578A Pending JPS54159569A (en) 1978-06-07 1978-06-07 Control for number of operating apparatus

Country Status (1)

Country Link
JP (1) JPS54159569A (en)

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