JPS57101451A - Remote monitoring control system - Google Patents

Remote monitoring control system

Info

Publication number
JPS57101451A
JPS57101451A JP55177905A JP17790580A JPS57101451A JP S57101451 A JPS57101451 A JP S57101451A JP 55177905 A JP55177905 A JP 55177905A JP 17790580 A JP17790580 A JP 17790580A JP S57101451 A JPS57101451 A JP S57101451A
Authority
JP
Japan
Prior art keywords
station
control stations
main station
monitored
leadership
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
JP55177905A
Other languages
Japanese (ja)
Inventor
Masaro Kawanishi
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
Original Assignee
NEC 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 Electric Co Ltd filed Critical NEC Corp
Priority to JP55177905A priority Critical patent/JPS57101451A/en
Publication of JPS57101451A publication Critical patent/JPS57101451A/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)
  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To limit the effect of failures of one monitor control station locally, by providing two or more monitoring control stations to a remote monitor control system and enabling the transfer of leadership between minotor control stations. CONSTITUTION:Control stations 2, 3, 4 to be monitored are monitored by taking one station 1 out of two monitor control stations 1, 5 as a main station and another station 5 as a slave station. At normal interrogation, a callout signal (solid lines) is transmitted from a main station 1 to control stations 2, 3, 4 to be monitored and a response signal (broken lines) corresponding to it is returned to the main station 1. Simultaneously, the same operation is made to the slave station 5. If a failure takes place in the main station 1, a leadership transfer request code is transmitted from the slave station 5 to the main station 1, and the slave station 5 plays a role of the main station by receiving a start code of the leadership inserted in a response signal from the main station 1. Thus, even if failures take place in one of monitor control stations, the effect can be limited locally.
JP55177905A 1980-12-16 1980-12-16 Remote monitoring control system Pending JPS57101451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55177905A JPS57101451A (en) 1980-12-16 1980-12-16 Remote monitoring control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55177905A JPS57101451A (en) 1980-12-16 1980-12-16 Remote monitoring control system

Publications (1)

Publication Number Publication Date
JPS57101451A true JPS57101451A (en) 1982-06-24

Family

ID=16039104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55177905A Pending JPS57101451A (en) 1980-12-16 1980-12-16 Remote monitoring control system

Country Status (1)

Country Link
JP (1) JPS57101451A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138735A2 (en) * 1983-10-07 1985-04-24 UNITED TECHNOLOGIES AUTOMOTIVE, Inc. Multiplex control system having enhanced integrity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0138735A2 (en) * 1983-10-07 1985-04-24 UNITED TECHNOLOGIES AUTOMOTIVE, Inc. Multiplex control system having enhanced integrity

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