NL7115165A - - Google Patents

Info

Publication number
NL7115165A
NL7115165A NL7115165A NL7115165A NL7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A NL 7115165 A NL7115165 A NL 7115165A
Authority
NL
Netherlands
Application number
NL7115165A
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 filed Critical
Publication of NL7115165A publication Critical patent/NL7115165A/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Alarm Systems (AREA)
NL7115165A 1970-11-12 1971-11-03 NL7115165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7015288A SE402660B (en) 1970-11-12 1970-11-12 FIREPLACE FACILITY

Publications (1)

Publication Number Publication Date
NL7115165A true NL7115165A (en) 1972-05-16

Family

ID=20300437

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7115165A NL7115165A (en) 1970-11-12 1971-11-03

Country Status (10)

Country Link
US (1) US3832678A (en)
BE (1) BE775169A (en)
CH (1) CH540539A (en)
DE (1) DE2154537A1 (en)
DK (1) DK129069B (en)
FI (1) FI53762C (en)
GB (1) GB1338690A (en)
NL (1) NL7115165A (en)
NO (1) NO131693C (en)
SE (1) SE402660B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991413A (en) * 1975-06-23 1976-11-09 Berger Philip H Constant current detector system
DE2638068C3 (en) * 1976-08-24 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Fire alarm system with several detectors that can be operated via a message loop
DE2641489C2 (en) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Method for the transmission of measured values in a fire alarm system
US4110683A (en) * 1977-07-08 1978-08-29 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus including a plurality of spaced transformers for locating short circuits in cables
US4287515A (en) * 1979-04-27 1981-09-01 Baker Industries, Inc. Fire detection system with multiple output signals
JPS595955B2 (en) * 1979-07-27 1984-02-08 ホーチキ株式会社 fire alarm
DE2935335C2 (en) * 1979-08-31 1985-08-08 Siemens AG, 1000 Berlin und 8000 München DC alarm system
DE3043357C2 (en) * 1980-11-17 1985-01-17 Siemens AG, 1000 Berlin und 8000 München Method and device for measuring resistance on a signal line
EP0072187A1 (en) * 1981-02-06 1983-02-16 Institute For Industrial Research And Standards Method and apparatus for identifying the location of a change in state of a part of an electrical circuit
JPS58134392A (en) * 1982-02-04 1983-08-10 ニツタン株式会社 Fire alarm
EP0224819B1 (en) * 1985-11-26 1991-01-30 Siemens Aktiengesellschaft Danger-signalling system
DE3719988A1 (en) * 1987-06-15 1988-12-29 Total Feuerschutz Gmbh INDIVIDUAL IDENTIFICATION
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
US9467141B2 (en) 2011-10-07 2016-10-11 Microchip Technology Incorporated Measuring capacitance of a capacitive sensor with a microcontroller having an analog output for driving a guard ring
US9257980B2 (en) 2011-10-06 2016-02-09 Microchip Technology Incorporated Measuring capacitance of a capacitive sensor with a microcontroller having digital outputs for driving a guard ring
US9071264B2 (en) 2011-10-06 2015-06-30 Microchip Technology Incorporated Microcontroller with sequencer driven analog-to-digital converter
US9437093B2 (en) * 2011-10-06 2016-09-06 Microchip Technology Incorporated Differential current measurements to determine ION current in the presence of leakage current
US8847802B2 (en) 2011-10-06 2014-09-30 Microchip Technology Incorporated Microcontroller ADC with a variable sample and hold capacitor
US9252769B2 (en) 2011-10-07 2016-02-02 Microchip Technology Incorporated Microcontroller with optimized ADC controller
US9207209B2 (en) 2011-12-14 2015-12-08 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9176088B2 (en) 2011-12-14 2015-11-03 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9189940B2 (en) 2011-12-14 2015-11-17 Microchip Technology Incorporated Method and apparatus for detecting smoke in an ion chamber
US9823280B2 (en) 2011-12-21 2017-11-21 Microchip Technology Incorporated Current sensing with internal ADC capacitor
US8884771B2 (en) 2012-08-01 2014-11-11 Microchip Technology Incorporated Smoke detection using change in permittivity of capacitor air dielectric
CA3006178C (en) 2018-05-25 2021-02-02 Stephen D. Ainsworth Fire alarm testing device and method
US10210747B1 (en) * 2018-05-25 2019-02-19 Stephen David Ainsworth Fire alarm testing device and method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268881A (en) * 1963-08-01 1966-08-23 Alfred W Vasel Detection device
CH468682A (en) * 1967-06-26 1969-02-15 Cerberus Ag Fire alarm system
GB1178957A (en) * 1968-04-29 1970-01-28 Goodwin Alfred George Ive Improvements in and relating to Electrical Protective Systems
US3611362A (en) * 1969-03-19 1971-10-05 Gen Signal Of Canada Ltd Alarm sensing and indicating systems
US3653025A (en) * 1969-08-04 1972-03-28 Caswell Equipment Co Inc Signalling system
US3676877A (en) * 1970-04-18 1972-07-11 Mittan Co Ltd Fire alarm system with fire zone locator using zener diode voltage monitoring
US3716834A (en) * 1971-10-07 1973-02-13 H Adams Data transmission system with immunity to circuit faults
US3711854A (en) * 1971-10-19 1973-01-16 Federal Sign And Signal Corp Parallel alarm circuit having series supervision

Also Published As

Publication number Publication date
NO131693B (en) 1975-04-01
DE2154537A1 (en) 1972-05-18
FI53762C (en) 1978-07-10
SE402660B (en) 1978-07-10
DK129069B (en) 1974-08-12
US3832678A (en) 1974-08-27
GB1338690A (en) 1973-11-28
FI53762B (en) 1978-03-31
BE775169A (en) 1972-03-01
CH540539A (en) 1973-08-15
NO131693C (en) 1975-07-09

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Legal Events

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BB A search report has been drawn up
BV The patent application has lapsed