JPH0519198B2 - - Google Patents

Info

Publication number
JPH0519198B2
JPH0519198B2 JP61054915A JP5491586A JPH0519198B2 JP H0519198 B2 JPH0519198 B2 JP H0519198B2 JP 61054915 A JP61054915 A JP 61054915A JP 5491586 A JP5491586 A JP 5491586A JP H0519198 B2 JPH0519198 B2 JP H0519198B2
Authority
JP
Japan
Prior art keywords
power supply
sensor
line
detection signal
receiver
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.)
Expired - Lifetime
Application number
JP61054915A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62229394A (ja
Inventor
Tetsuo Kimura
Akihiro Kobayashi
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.)
Nittan Co Ltd
Original Assignee
Nittan 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP61054915A priority Critical patent/JPS62229394A/ja
Priority to US07/001,978 priority patent/US4725821A/en
Priority to GB8702328A priority patent/GB2187870B/en
Publication of JPS62229394A publication Critical patent/JPS62229394A/ja
Publication of JPH0519198B2 publication Critical patent/JPH0519198B2/ja
Granted legal-status Critical Current

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
    • G08B25/04—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 using a single signalling line, e.g. in a closed loop

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
JP61054915A 1986-03-14 1986-03-14 異常警報装置 Granted JPS62229394A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP61054915A JPS62229394A (ja) 1986-03-14 1986-03-14 異常警報装置
US07/001,978 US4725821A (en) 1986-03-14 1987-01-09 Device for generating an alarm signal
GB8702328A GB2187870B (en) 1986-03-14 1987-02-03 Alarm device for detecting abnormality

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61054915A JPS62229394A (ja) 1986-03-14 1986-03-14 異常警報装置

Publications (2)

Publication Number Publication Date
JPS62229394A JPS62229394A (ja) 1987-10-08
JPH0519198B2 true JPH0519198B2 (en]) 1993-03-16

Family

ID=12983901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61054915A Granted JPS62229394A (ja) 1986-03-14 1986-03-14 異常警報装置

Country Status (3)

Country Link
US (1) US4725821A (en])
JP (1) JPS62229394A (en])
GB (1) GB2187870B (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962373A (en) * 1989-05-01 1990-10-09 General Signal Corporation Scheme for power conservation in fire alarm system
US4956634A (en) * 1989-05-01 1990-09-11 General Signal Corporation City tie line connection for fire alarm system
US5471194A (en) * 1993-03-23 1995-11-28 Aritech Corporation Event detection system with centralized signal processing and dynamically adjustable detection threshold
DE69428173T2 (de) * 1993-09-30 2002-03-28 Nittan Co., Ltd. Sensorvorrichtung und elektronische Anlage mit eingebauter Sensorvorrichtung
CN106155861A (zh) * 2015-04-22 2016-11-23 鸿富锦精密工业(武汉)有限公司 电子设备报警电路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136119B1 (en]) * 1971-04-15 1976-10-06
JPS5737265Y2 (en]) * 1976-07-07 1982-08-17
CH629905A5 (de) * 1978-07-17 1982-05-14 Cerberus Ag Gas- und/oder brandmeldeanlage.
DE2939462C2 (de) * 1979-09-28 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Verfahren und Einrichtung zur Identifizierung einzelner Melder in Einbruch- oder Brandmeldeanlagen
US4377808A (en) * 1980-07-28 1983-03-22 Sound Engineering (Far East) Limited Infrared intrusion alarm system
US4538137A (en) * 1983-01-20 1985-08-27 Nittan Company, Limited Fire detector

Also Published As

Publication number Publication date
GB2187870B (en) 1990-01-17
GB2187870A (en) 1987-09-16
US4725821A (en) 1988-02-16
JPS62229394A (ja) 1987-10-08
GB8702328D0 (en) 1987-03-11

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