JPS54108178A - Remote change over control system - Google Patents

Remote change over control system

Info

Publication number
JPS54108178A
JPS54108178A JP1612178A JP1612178A JPS54108178A JP S54108178 A JPS54108178 A JP S54108178A JP 1612178 A JP1612178 A JP 1612178A JP 1612178 A JP1612178 A JP 1612178A JP S54108178 A JPS54108178 A JP S54108178A
Authority
JP
Japan
Prior art keywords
branched
office
signal
master station
over
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
JP1612178A
Other languages
Japanese (ja)
Inventor
Takuro Iimura
Akira Nagai
Osamu Miura
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon Electric Co 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1612178A priority Critical patent/JPS54108178A/en
Publication of JPS54108178A publication Critical patent/JPS54108178A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To control the changing over a plurality of branched offices at the same time by chequing the transmitting line between a master station and the branched office, and by judging the operating status of the branched office side by a short time, by means of combining a simple signal and a mechanism which indicates the present operating status of the branched office to the master station side. CONSTITUTION:A branched office state sending command signal is sent by a master station signal sending part 12 for the purpose of informing the operating state of the branched office before the change-over on the branched side. The operating state of the branched side is sent to the master station side on the basis of the signal received by a branched office signal receiving part 15 on the branched office. The present state of the branched office is indicated by a state judging part 13 by means of receiving this signal on the master station side. Then, the master station sends an operation state changing-over command which is made by a signal making indicating part 11 to the branched office side. If a change-over control part 17 of the branched office may receive the change-over signal, the operating state of a branched office device body 18 is changed over, and at the same time, sends an operation state change command receive recognizing signal is sent to the master station.
JP1612178A 1978-02-14 1978-02-14 Remote change over control system Pending JPS54108178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1612178A JPS54108178A (en) 1978-02-14 1978-02-14 Remote change over control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1612178A JPS54108178A (en) 1978-02-14 1978-02-14 Remote change over control system

Publications (1)

Publication Number Publication Date
JPS54108178A true JPS54108178A (en) 1979-08-24

Family

ID=11907673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1612178A Pending JPS54108178A (en) 1978-02-14 1978-02-14 Remote change over control system

Country Status (1)

Country Link
JP (1) JPS54108178A (en)

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