JPS54105675A - Remote supervision system - Google Patents

Remote supervision system

Info

Publication number
JPS54105675A
JPS54105675A JP1276378A JP1276378A JPS54105675A JP S54105675 A JPS54105675 A JP S54105675A JP 1276378 A JP1276378 A JP 1276378A JP 1276378 A JP1276378 A JP 1276378A JP S54105675 A JPS54105675 A JP S54105675A
Authority
JP
Japan
Prior art keywords
alarm
state change
switch
alarm sound
produce
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
JP1276378A
Other languages
Japanese (ja)
Inventor
Mutsuo Tsunoda
Hiroshi Matsumoto
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 JP1276378A priority Critical patent/JPS54105675A/en
Publication of JPS54105675A publication Critical patent/JPS54105675A/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)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To improve the efficiency of maintenance with such an arrangement that a switch is controlled by a state change detection signal to decode a supervision signal and that an emergency indication item corresponding to the state change is extracted from the output signal and detection signal to produce an alarm sound. CONSTITUTION:When stage change information is detected from a supervision code input 1 by a state change detector 2 and coupled to a switching controller 4, a switch 5 is automatically switched, whereby a supervision code is led to a decoder 6 and decoded. The emergency indication item is extracted by an alarm item discriminator 8, and an alarm sound generation discriminator 9 discriminates the generation of various alarm sounds belonging to individual emergency indication item groups from the extracted information and state change information coupled to the state change detector 2 to cause an audio alarm generator 3 to produce an alarm. In case when state changes are simultaneously produced in two or more stations, a switch controller 4 selects a preference degree to control a switch 5, while at the same time control information is transmitted to the alarm sound generation discriminator 9 to produce an alarm sound for the selected station.
JP1276378A 1978-02-06 1978-02-06 Remote supervision system Pending JPS54105675A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1276378A JPS54105675A (en) 1978-02-06 1978-02-06 Remote supervision system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1276378A JPS54105675A (en) 1978-02-06 1978-02-06 Remote supervision system

Publications (1)

Publication Number Publication Date
JPS54105675A true JPS54105675A (en) 1979-08-18

Family

ID=11814430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1276378A Pending JPS54105675A (en) 1978-02-06 1978-02-06 Remote supervision system

Country Status (1)

Country Link
JP (1) JPS54105675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461200A (en) * 1987-08-31 1989-03-08 Nippon Telegraph & Telephone Communication control equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6461200A (en) * 1987-08-31 1989-03-08 Nippon Telegraph & Telephone Communication control equipment

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