JPS5619256A - Centralized monitor control system - Google Patents

Centralized monitor control system

Info

Publication number
JPS5619256A
JPS5619256A JP9419279A JP9419279A JPS5619256A JP S5619256 A JPS5619256 A JP S5619256A JP 9419279 A JP9419279 A JP 9419279A JP 9419279 A JP9419279 A JP 9419279A JP S5619256 A JPS5619256 A JP S5619256A
Authority
JP
Japan
Prior art keywords
circuit
master station
station
slave
main
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.)
Granted
Application number
JP9419279A
Other languages
Japanese (ja)
Other versions
JPS6348211B2 (en
Inventor
Masahiro Fuda
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.)
Fuji Electric Co Ltd
Fuji Facom Corp
Original Assignee
Fuji Electric Co Ltd
Fuji Facom 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 Fuji Electric Co Ltd, Fuji Facom Corp filed Critical Fuji Electric Co Ltd
Priority to JP9419279A priority Critical patent/JPS5619256A/en
Publication of JPS5619256A publication Critical patent/JPS5619256A/en
Publication of JPS6348211B2 publication Critical patent/JPS6348211B2/ja
Granted 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)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To enhance the reliability of the control system, by securing the double link-type circuit connection among the main master station, the secondary master station and plural numbers of slave stations via the main and secondary circuits each and then carrying out the transfer of the data between the secondary master station and the slave station which detected the fault of the main circuit. CONSTITUTION:The connection is secured between master station 11 and slave stations 121-12N via main circuit 13, and at the same time each slave station is connected to secondary master station 14 via secondary circuit 15 to form the double link-type circuit. Slave station 12i (i=1-n) possesses demodulator 21i to be connected to circuit 13, demodulator 22i to be connected to circuit 15, changeover connection switches 23i and 24i, and receiving circuit 25i each. In the normal state, the data is transmitted and received between the main master station and each slave station via circuit 13. However, in case circuit 13 has a fault between slave stations 122 and 123, slave station 123 and its subsequent stations cannot receive the signal from master station 11. In this connection, circuit 25i changes over switches 23i and 24i and then carries out the data transfer to and from master station 14 via circuit 15. The main master station stops the transmission after master station 14 confirmed the faulty area. At the same time, slave stations 121 and 122 also carry out the communication to station 14 through changeover to circuit 15.
JP9419279A 1979-07-26 1979-07-26 Centralized monitor control system Granted JPS5619256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9419279A JPS5619256A (en) 1979-07-26 1979-07-26 Centralized monitor control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9419279A JPS5619256A (en) 1979-07-26 1979-07-26 Centralized monitor control system

Publications (2)

Publication Number Publication Date
JPS5619256A true JPS5619256A (en) 1981-02-23
JPS6348211B2 JPS6348211B2 (en) 1988-09-28

Family

ID=14103431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9419279A Granted JPS5619256A (en) 1979-07-26 1979-07-26 Centralized monitor control system

Country Status (1)

Country Link
JP (1) JPS5619256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6288800U (en) * 1985-11-21 1987-06-06
JPWO2013175811A1 (en) * 2012-05-22 2016-01-12 三菱電機株式会社 Supervisory control system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977084A (en) * 1972-11-30 1974-07-25
JPS5484403A (en) * 1977-12-19 1979-07-05 Hitachi Ltd Double system transmission line switching system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977084A (en) * 1972-11-30 1974-07-25
JPS5484403A (en) * 1977-12-19 1979-07-05 Hitachi Ltd Double system transmission line switching system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6288800U (en) * 1985-11-21 1987-06-06
JPH0133679Y2 (en) * 1985-11-21 1989-10-12
JPWO2013175811A1 (en) * 2012-05-22 2016-01-12 三菱電機株式会社 Supervisory control system

Also Published As

Publication number Publication date
JPS6348211B2 (en) 1988-09-28

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