KR840002553A - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector Download PDF

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Publication number
KR840002553A
KR840002553A KR1019820005073A KR820005073A KR840002553A KR 840002553 A KR840002553 A KR 840002553A KR 1019820005073 A KR1019820005073 A KR 1019820005073A KR 820005073 A KR820005073 A KR 820005073A KR 840002553 A KR840002553 A KR 840002553A
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KR
South Korea
Prior art keywords
light
output
comparator
signal
inputs
Prior art date
Application number
KR1019820005073A
Other languages
Korean (ko)
Other versions
KR880000077B1 (en
Inventor
곡사이덴시기쥬즈껭큐쇼(내) 혼마 히로시 가부시기가이샤
Original Assignee
이이브지 시게루
호오치기 가부시기가이샤
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 GB8207518A external-priority patent/GB2097917B/en
Application filed by 이이브지 시게루, 호오치기 가부시기가이샤 filed Critical 이이브지 시게루
Publication of KR840002553A publication Critical patent/KR840002553A/en
Application granted granted Critical
Publication of KR880000077B1 publication Critical patent/KR880000077B1/en

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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

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  • 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)

Abstract

내용 없음.No content.

Description

광전식 연기 감지기Photoelectric smoke detector

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래의 광전식 연기 감지기의 일예를 보이는 블럭도.1 is a block diagram showing an example of a conventional photoelectric smoke detector.

제2도는 종래의 광전식 연기 감지기의 동작을 보이는 파형도.2 is a waveform diagram showing the operation of a conventional photoelectric smoke detector.

제3도는 본 발명 광전식 연기 감지기의 일실시예 회로도.3 is a circuit diagram of one embodiment of the photoelectric smoke detector of the present invention.

Claims (1)

간할적으로 발광구동되고 연기가 유입하는 검연부에 펄스광을 조사하는 발광다이오드와, 상기 검연부에 유입한 연기에 의한 산탄광을 수광하여 전기신호로 변환하는 수광다이오드와, 상기 수광다이오드의 출력신호를 일방의 입력단자에 입력함과 동시에, 미리 정한 기준전압을 타방의 입력단자에 입력하고, 상기 수광다이오드의 출력전압이 기준전압 이상으로 된 때에 출력하는 비교기와, 이 비교기의 출력을 축적하고, 비교기의 출력이 발광펄스에 동기하여 적어도 1회 연속하여 얻어진 때에 출력하는 측전회로와, 이 측적 회로의 출력에 의하여 도통하고, 수신기로부터 인출된 한쌍의 전원겸 신호선 간을 스위칭하는 발보신호를 송출하는 스위칭회로와를 구비하고, 상기 측적회로를 발광펄스의 후연의 타이밍으로 상기 비교기의 출력을 판독함과 동시에 이를 탓치하는 폴리플럽회로로서 구성됨을 특징으로 한 광전식 연기감지기.A light emitting diode for irradiating pulsed light to a spectroscopic section into which light is lightly driven and smoke flows; a light-emitting diode for receiving a shot coal light by smoke introduced into the screen section and converting the light into an electrical signal; and an output of the photodiode A comparator which inputs a signal to one input terminal, inputs a predetermined reference voltage to the other input terminal, and outputs when the output voltage of the light-receiving diode becomes equal to or higher than the reference voltage; And a measurement circuit for outputting when the output of the comparator is obtained at least once in synchronization with the light emission pulse, and a balun signal for switching between a pair of power supply and signal lines drawn from the receiver by conducting by the output of the measurement circuit. And a switching circuit configured to read the output of the comparator at the timing of the trailing edge of the light emitting pulse. Photoelectric smoke detector, characterized in that it is constructed as a polyflop circuit that blames it. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR8205073A 1982-03-15 1982-11-10 A smoke sensor KR880000077B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8207518 1982-03-15
GB8207518A GB2097917B (en) 1981-03-18 1982-03-15 Photoelectric smoke sensor

Publications (2)

Publication Number Publication Date
KR840002553A true KR840002553A (en) 1984-07-02
KR880000077B1 KR880000077B1 (en) 1988-02-22

Family

ID=19226025

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8205073A KR880000077B1 (en) 1982-03-15 1982-11-10 A smoke sensor

Country Status (1)

Country Link
KR (1) KR880000077B1 (en)

Also Published As

Publication number Publication date
KR880000077B1 (en) 1988-02-22

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