JPS61201193U - - Google Patents

Info

Publication number
JPS61201193U
JPS61201193U JP8396485U JP8396485U JPS61201193U JP S61201193 U JPS61201193 U JP S61201193U JP 8396485 U JP8396485 U JP 8396485U JP 8396485 U JP8396485 U JP 8396485U JP S61201193 U JPS61201193 U JP S61201193U
Authority
JP
Japan
Prior art keywords
fire
timer circuit
circuit
output
alarm system
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.)
Granted
Application number
JP8396485U
Other languages
Japanese (ja)
Other versions
JPH0353351Y2 (en
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
Priority to JP1985083964U priority Critical patent/JPH0353351Y2/ja
Publication of JPS61201193U publication Critical patent/JPS61201193U/ja
Application granted granted Critical
Publication of JPH0353351Y2 publication Critical patent/JPH0353351Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の火災報知機の一実施例の回
路図、第２図は火災センサの出力波形図である。 Ｓ……火災センサ、ＲＥ……受信機、ＩＣ１，
ＩＣ８……比較器、ＩＣ４……タイマ回路、ＩＣ
５……発振回路、ＩＣ６……スイツチング回路、
ＩＣ１４……微分回路。 FIG. 1 is a circuit diagram of an embodiment of the fire alarm of this invention, and FIG. 2 is an output waveform diagram of the fire sensor. S...Fire sensor, RE...Receiver, IC1,
IC8... Comparator, IC4... Timer circuit, IC
5...Oscillation circuit, IC6...Switching circuit,
IC14... Differential circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 火災感知器または火災センサと中継器あるいは
受信機とより構成された火災報知機において、タ
バコの煙や短時間の電気的ノイズで誤動作するの
を防止する蓄積回路と上記火災感知器または火災
センサの汚れを検出するために設けられるタイマ
回路とが共通のタイマ回路で構成され、このタイ
マ回路のリセツト入力には火災判別用の比較器の
出力により動作する微分回路の出力が接続された
ことを特徴とする火災報知機。 In a fire alarm system consisting of a fire detector or fire sensor and a repeater or receiver, a storage circuit for preventing malfunction due to cigarette smoke or short-term electrical noise, and The timer circuit provided for detecting dirt is composed of a common timer circuit, and the reset input of this timer circuit is connected to the output of a differentiating circuit operated by the output of a comparator for fire discrimination. fire alarm system.
JP1985083964U 1985-06-05 1985-06-05 Expired JPH0353351Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985083964U JPH0353351Y2 (en) 1985-06-05 1985-06-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985083964U JPH0353351Y2 (en) 1985-06-05 1985-06-05

Publications (2)

Publication Number Publication Date
JPS61201193U true JPS61201193U (en) 1986-12-17
JPH0353351Y2 JPH0353351Y2 (en) 1991-11-21

Family

ID=30633066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985083964U Expired JPH0353351Y2 (en) 1985-06-05 1985-06-05

Country Status (1)

Country Link
JP (1) JPH0353351Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624693A (en) * 1979-08-07 1981-03-09 Matsushita Electric Works Ltd Signal processor circuit for optical smoke sensor
JPS5657951A (en) * 1979-10-16 1981-05-20 Nittan Co Ltd Ionization smoke detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624693A (en) * 1979-08-07 1981-03-09 Matsushita Electric Works Ltd Signal processor circuit for optical smoke sensor
JPS5657951A (en) * 1979-10-16 1981-05-20 Nittan Co Ltd Ionization smoke detector

Also Published As

Publication number Publication date
JPH0353351Y2 (en) 1991-11-21

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