NL7609588A - Bewakings- en alarmeringsinrichting in een ringleidingstelsel. - Google Patents

Bewakings- en alarmeringsinrichting in een ringleidingstelsel.

Info

Publication number
NL7609588A
NL7609588A NL7609588A NL7609588A NL7609588A NL 7609588 A NL7609588 A NL 7609588A NL 7609588 A NL7609588 A NL 7609588A NL 7609588 A NL7609588 A NL 7609588A NL 7609588 A NL7609588 A NL 7609588A
Authority
NL
Netherlands
Prior art keywords
monitoring
ring
alarm device
line system
line
Prior art date
Application number
NL7609588A
Other languages
English (en)
Original Assignee
Sumitomo Chemical Co
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
Priority claimed from JP10463275A external-priority patent/JPS5228298A/ja
Priority claimed from JP50120006A external-priority patent/JPS5244655A/ja
Application filed by Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Publication of NL7609588A publication Critical patent/NL7609588A/nl

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/001—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel
    • G08B26/003—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel replying the identity and the state of the sensor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
NL7609588A 1975-08-28 1976-08-27 Bewakings- en alarmeringsinrichting in een ringleidingstelsel. NL7609588A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10463275A JPS5228298A (en) 1975-08-28 1975-08-28 Supervisory alarm unit by loop circuit system
JP50120006A JPS5244655A (en) 1975-10-03 1975-10-03 Centralized control unit for a gas leak

Publications (1)

Publication Number Publication Date
NL7609588A true NL7609588A (nl) 1977-03-02

Family

ID=26445071

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7609588A NL7609588A (nl) 1975-08-28 1976-08-27 Bewakings- en alarmeringsinrichting in een ringleidingstelsel.

Country Status (6)

Country Link
BR (1) BR7605636A (nl)
DE (1) DE2638529A1 (nl)
FR (1) FR2322411A1 (nl)
GB (2) GB1556062A (nl)
IT (1) IT1066426B (nl)
NL (1) NL7609588A (nl)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817089B2 (de) * 1978-04-19 1980-12-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Gefahrenmeldeanlage
DE2946169C2 (de) * 1979-11-15 1986-12-11 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren zum Ermitteln des Zustandes betimmter Alarmgeber einer Überwachungsanlage
CH651688A5 (de) * 1980-06-23 1985-09-30 Cerberus Ag Verfahren zur uebertragung von messwerten in einer brandmeldeanlage und einrichtung zur durchfuehrung des verfahrens.
DE3141624A1 (de) * 1980-10-20 1982-08-26 Ricoh Co., Ltd., Tokyo Zentrales alarmsystem
CA1178678A (en) * 1981-03-13 1984-11-27 John M. Wynne Bidirectional, interactive fire detection system
JPS58127292A (ja) * 1982-01-26 1983-07-29 ニツタン株式会社 火災感知システム
DE3336290A1 (de) * 1982-10-08 1984-06-07 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Verfahren zur fernuebertragung von daten einer heizungs- oder kuehlanlage
JPS5963792U (ja) * 1982-10-22 1984-04-26 ニツタン株式会社 光電式煙検出端末機
JPS5977594A (ja) * 1982-10-27 1984-05-04 ニツタン株式会社 火災警報システム
US4558319A (en) * 1982-12-07 1985-12-10 Westinghouse Electric Corp. Automated system monitoring using frequency and amplitude modulation
DE3405857A1 (de) * 1983-02-24 1984-08-30 Hochiki K.K., Tokio/Tokyo Feueralarmsystem
JPS59201193A (ja) * 1983-04-30 1984-11-14 松下電工株式会社 火報システム
JPS60117939A (ja) * 1983-11-30 1985-06-25 Matsushita Electric Works Ltd 情報伝送方式
GB8431883D0 (en) * 1984-12-18 1985-01-30 Gent Ltd Transmission system
GB2172175B (en) * 1985-02-15 1989-04-05 Hitachi Ltd Method for controlling ring network
DE3614692A1 (de) * 1986-04-30 1987-11-05 Nixdorf Computer Ag Gefahrenmeldeanlage
DE3744208A1 (de) * 1987-12-24 1989-07-06 Rieter Ag Maschf Verfahren und vorrichtung fuer die uebertragung von informationen bei einer eine vielzahl von produktionsstellen aufweisenden herstellungsmaschine

Also Published As

Publication number Publication date
FR2322411A1 (fr) 1977-03-25
DE2638529A1 (de) 1977-03-10
GB1556062A (en) 1979-11-21
IT1066426B (it) 1985-03-12
GB1556061A (en) 1979-11-21
FR2322411B1 (nl) 1980-07-04
BR7605636A (pt) 1977-08-09

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Legal Events

Date Code Title Description
BV The patent application has lapsed