CH466761A - Installation de surveillance d'une grandeur - Google Patents

Installation de surveillance d'une grandeur

Info

Publication number
CH466761A
CH466761A CH1348265A CH1348265A CH466761A CH 466761 A CH466761 A CH 466761A CH 1348265 A CH1348265 A CH 1348265A CH 1348265 A CH1348265 A CH 1348265A CH 466761 A CH466761 A CH 466761A
Authority
CH
Switzerland
Prior art keywords
monitoring installation
monitoring
installation
Prior art date
Application number
CH1348265A
Other languages
English (en)
Inventor
Grant Rowell William
Original Assignee
Scully Signal 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
Application filed by Scully Signal Co filed Critical Scully Signal Co
Publication of CH466761A publication Critical patent/CH466761A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CH1348265A 1964-09-30 1965-09-30 Installation de surveillance d'une grandeur CH466761A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US400420A US3386087A (en) 1964-09-30 1964-09-30 Fail-safe checking system

Publications (1)

Publication Number Publication Date
CH466761A true CH466761A (fr) 1968-12-15

Family

ID=23583540

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1348265A CH466761A (fr) 1964-09-30 1965-09-30 Installation de surveillance d'une grandeur

Country Status (4)

Country Link
US (1) US3386087A (fr)
CH (1) CH466761A (fr)
DE (1) DE1499547C3 (fr)
GB (1) GB1124746A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445573A1 (fr) * 1978-12-27 1980-07-25 Guillemot Gilbert Commande electronique d'une sonnette a vibreur

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1552144A (en) * 1921-12-06 1925-09-01 Union Switch & Signal Co Railway-traffic-controlling apparatus
US1736993A (en) * 1928-11-09 1929-11-26 Westinghouse Electric & Mfg Co Light-relay system
GB557707A (en) * 1942-05-28 1943-12-01 Standard Telephones Cables Ltd Improvements in or relating to relay timing arrangements
US2798213A (en) * 1953-08-19 1957-07-02 Scully Signal Co Checking technique and system
US2838719A (en) * 1955-12-28 1958-06-10 Marconi Co Canada Photocell circuit control arrangement
US2978591A (en) * 1958-05-05 1961-04-04 American Electric Mfg Corp Control means for a street lighting system
US3176196A (en) * 1961-08-09 1965-03-30 Machinery Electrification Inc Photo-electric relay
US3240960A (en) * 1962-10-05 1966-03-15 Lewis J Woodward Photoelectric lighting control

Also Published As

Publication number Publication date
GB1124746A (en) 1968-08-21
US3386087A (en) 1968-05-28
DE1499547B2 (de) 1974-11-28
DE1499547C3 (de) 1975-07-10
DE1499547A1 (de) 1969-10-16

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