JPS64754B2 - - Google Patents

Info

Publication number
JPS64754B2
JPS64754B2 JP58233692A JP23369283A JPS64754B2 JP S64754 B2 JPS64754 B2 JP S64754B2 JP 58233692 A JP58233692 A JP 58233692A JP 23369283 A JP23369283 A JP 23369283A JP S64754 B2 JPS64754 B2 JP S64754B2
Authority
JP
Japan
Prior art keywords
circuit
detection
smoke
signal
counting
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
Application number
JP58233692A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60126798A (ja
Inventor
Tetsuo Kimura
Seiichi Tanaka
Takashi Suzuki
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 JP58233692A priority Critical patent/JPS60126798A/ja
Priority to AU34551/84A priority patent/AU553577B2/en
Priority to GB08430941A priority patent/GB2151384B/en
Priority to SE8406298A priority patent/SE8406298L/
Priority to US06/680,768 priority patent/US4638304A/en
Publication of JPS60126798A publication Critical patent/JPS60126798A/ja
Publication of JPS64754B2 publication Critical patent/JPS64754B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Fire Alarms (AREA)
JP58233692A 1983-12-13 1983-12-13 環境異常検出装置 Granted JPS60126798A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP58233692A JPS60126798A (ja) 1983-12-13 1983-12-13 環境異常検出装置
AU34551/84A AU553577B2 (en) 1983-12-13 1984-10-22 Alarm detector
GB08430941A GB2151384B (en) 1983-12-13 1984-12-07 Environmental alarms
SE8406298A SE8406298L (sv) 1983-12-13 1984-12-12 Anordning for detektering av onormala omgivningstillstand
US06/680,768 US4638304A (en) 1983-12-13 1984-12-12 Environmental abnormality detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58233692A JPS60126798A (ja) 1983-12-13 1983-12-13 環境異常検出装置

Publications (2)

Publication Number Publication Date
JPS60126798A JPS60126798A (ja) 1985-07-06
JPS64754B2 true JPS64754B2 (en]) 1989-01-09

Family

ID=16959044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58233692A Granted JPS60126798A (ja) 1983-12-13 1983-12-13 環境異常検出装置

Country Status (5)

Country Link
US (1) US4638304A (en])
JP (1) JPS60126798A (en])
AU (1) AU553577B2 (en])
GB (1) GB2151384B (en])
SE (1) SE8406298L (en])

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524886A1 (de) * 1985-07-12 1987-01-22 Vdo Schindling Messschaltungsanordnung fuer einen elektrischen messwertgeber
JPS62123595A (ja) * 1985-11-25 1987-06-04 ニツタン株式会社 環境異常警報装置
JPS62161042A (ja) * 1986-01-09 1987-07-17 Nittan Co Ltd 分離型減光式煙感知器
JPS62166425A (ja) * 1986-01-20 1987-07-22 Hitachi Ltd コマンド起動方式
JPH0632144B2 (ja) * 1987-04-08 1994-04-27 ニツタン株式会社 環境異常警報装置
US4797608A (en) * 1987-08-13 1989-01-10 Digital Equipment Corporation D.C. power monitor
AU652513B2 (en) * 1992-06-29 1994-08-25 Nohmi Bosai Ltd Smoke detecting apparatus for fire alarm
US5608384A (en) * 1992-10-23 1997-03-04 Sentech Corporation Method and apparatus for monitoring for the presence of a gas
GB2274333B (en) * 1993-01-07 1996-12-11 Hochiki Co Smoke detecting apparatus capable of detecting both smoke and fine particles
US6107925A (en) * 1993-06-14 2000-08-22 Edwards Systems Technology, Inc. Method for dynamically adjusting criteria for detecting fire through smoke concentration
US5767776A (en) * 1996-01-29 1998-06-16 Engelhard Sensor Technologies, Inc. Fire detector
US5592147A (en) * 1993-06-14 1997-01-07 Wong; Jacob Y. False alarm resistant fire detector with improved performance
GB9315779D0 (en) * 1993-07-30 1993-09-15 Stoneplan Limited Apparatus and methods
DE69428173T2 (de) * 1993-09-30 2002-03-28 Nittan Co., Ltd. Sensorvorrichtung und elektronische Anlage mit eingebauter Sensorvorrichtung
US5764142A (en) * 1995-09-01 1998-06-09 Pittway Corporation Fire alarm system with smoke particle discrimination
US5831538A (en) * 1997-03-18 1998-11-03 Schena; Robert G. Electrical fire hazard detector
US5831524A (en) * 1997-04-29 1998-11-03 Pittway Corporation System and method for dynamic adjustment of filtering in an alarm system
US5831537A (en) * 1997-10-27 1998-11-03 Slc Technologies, Inc. Electrical current saving combined smoke and fire detector
US6229439B1 (en) 1998-07-22 2001-05-08 Pittway Corporation System and method of filtering
US6222456B1 (en) 1998-10-01 2001-04-24 Pittway Corporation Detector with variable sample rate
US6392536B1 (en) 2000-08-25 2002-05-21 Pittway Corporation Multi-sensor detector
US6967582B2 (en) * 2002-09-19 2005-11-22 Honeywell International Inc. Detector with ambient photon sensor and other sensors
DE102015004458B4 (de) 2014-06-26 2016-05-12 Elmos Semiconductor Aktiengesellschaft Vorrichtung und Verfahren für einen klassifizierenden, rauchkammerlosen Luftzustandssensor zur Prognostizierung eines folgenden Betriebszustands
DE102014019773B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mittels des Displays eines Mobiltelefons
DE102014019172B4 (de) 2014-12-17 2023-12-07 Elmos Semiconductor Se Vorrichtung und Verfahren zur Unterscheidung von festen Objekten, Kochdunst und Rauch mit einem kompensierenden optischen Messsystem

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB800163A (en) * 1955-09-26 1958-08-20 Specialties Dev Corp An electrical circuit automatically responsive to a pre-determined change, or rate of change of a condition, e.g. temperature
JPS4854900A (en]) * 1971-11-09 1973-08-01
JPS5737916B2 (en]) * 1972-07-14 1982-08-12
CH570016A5 (en]) * 1973-03-30 1975-11-28 Cerberus Ag
JPS5166798A (ja) * 1974-12-05 1976-06-09 Omron Tateisi Electronics Co Keihosochi
CA1067597A (en) * 1975-06-23 1979-12-04 William J. Malinowski Smoke detector
GB1571488A (en) * 1975-12-19 1980-07-16 Svenska Rotor Maskiner Ab Fire detection apparatus in a preheater
JPS52142999A (en) * 1976-05-24 1977-11-29 Nohmi Bosai Kogyo Co Ltd Fire alarm facility
US4078156A (en) * 1977-01-03 1978-03-07 Avco Corporation Drift cancellation circuit for multiplexer amplifier
US4146750A (en) * 1977-12-29 1979-03-27 Honeywell Inc. Analog multiplexer control circuit
JPS583272B2 (ja) * 1978-06-07 1983-01-20 ホーチキ株式会社 火災感知器
US4414539A (en) * 1978-12-22 1983-11-08 The Boeing Company Built-in passive fault detection circuitry for an aircraft's electrical/electronic systems
US4254414A (en) * 1979-03-22 1981-03-03 The United States Of America As Represented By The Secretary Of The Navy Processor-aided fire detector
DE3120986A1 (de) * 1981-05-26 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur revision in einem gefahren-, insbesondere brandmeldesystem
JPS5812309U (ja) * 1981-07-15 1983-01-26 上尾精密株式会社 時計バンドの駒連結構造
DE3405857A1 (de) * 1983-02-24 1984-08-30 Hochiki K.K., Tokio/Tokyo Feueralarmsystem

Also Published As

Publication number Publication date
US4638304A (en) 1987-01-20
AU553577B2 (en) 1986-07-24
GB8430941D0 (en) 1985-01-16
GB2151384B (en) 1987-03-18
AU3455184A (en) 1985-06-20
JPS60126798A (ja) 1985-07-06
SE8406298D0 (sv) 1984-12-12
GB2151384A (en) 1985-07-17
SE8406298L (sv) 1985-06-14

Similar Documents

Publication Publication Date Title
JPS64754B2 (en])
GB2169401A (en) Light-attenuation type fire detector assembly
US7546223B2 (en) Process and system of energy signal detection
EP0108801A1 (en) Smoke detector of the ionization type
US4697172A (en) Fire alarm system
US3559196A (en) Fire alarm with bistable characteristics
US20040200968A1 (en) Apparatus and method for detecting alpha-ray
US20080218361A1 (en) Process and system of energy signal detection
JP2000074968A (ja) 信号検出装置
JPH07200960A (ja) 偽アラーム予防方法及び火災報知設備
US7279685B2 (en) Radiation detector
JP2951674B2 (ja) 放射線監視方法及びその装置
US4171490A (en) Photoelectric smoke detector
JP2001021654A (ja) 放射線計測システム
JP2637036B2 (ja) トリガー装置
US3628142A (en) Sliding interval event detector
JPS60192207A (ja) 防災用検出装置
CN112634575B (zh) 一种检测颗粒浓度自适应烟感探测方法、装置及系统
JP2704811B2 (ja) 環境異常検出装置
JP2841493B2 (ja) 放射線パイルアップ検出回路
CN85101339B (zh) 环境异常探测装置
RU2084002C1 (ru) Сигнализатор возникновения самоподдерживающейся цепной реакции
SU1372333A1 (ru) Статистический анализатор дл регулировани технологических процессов
JPS5784369A (en) Abnormality detecting system for circuit device
Brunson Applications of a versatile new instrument module