JPS60140188U - Dimming smoke detector - Google Patents

Dimming smoke detector

Info

Publication number
JPS60140188U
JPS60140188U JP2771884U JP2771884U JPS60140188U JP S60140188 U JPS60140188 U JP S60140188U JP 2771884 U JP2771884 U JP 2771884U JP 2771884 U JP2771884 U JP 2771884U JP S60140188 U JPS60140188 U JP S60140188U
Authority
JP
Japan
Prior art keywords
smoke detector
light
reference value
received
light receiving
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
JP2771884U
Other languages
Japanese (ja)
Other versions
JPH0534075Y2 (en
Inventor
成宮　淳一
博 本間
Original Assignee
ホーチキ株式会社
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 ホーチキ株式会社 filed Critical ホーチキ株式会社
Priority to JP2771884U priority Critical patent/JPS60140188U/en
Publication of JPS60140188U publication Critical patent/JPS60140188U/en
Application granted granted Critical
Publication of JPH0534075Y2 publication Critical patent/JPH0534075Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は杢考案の一実施例を示す全体構成図、第２図は
第１図における受光部の回路構成を示す□　　　　Ｉ ブロック図、第３図は第２図における制御部のプログラ
ムフロー図である。 １：受信機、２：受光部、２ａ：受光素子、３：発光部
、３ａ：発光素子、４：検煙領域、。 ６．９，１１：定電圧電源、７．二発光制御部、８：制
御部、１０：クロック回路、１２：受信制−両部、１３
：受信回路、１５：電源電圧監視回路、１６　：　Ａ／
Ｄ変換回路、１７：基準電圧回路、１８：感度設定回路
、１９：モニタ信号出力部、２０：点検信号出力部、２
１：火災信号出力部。 ピ□ −　　　　　　　　＼ Ｌ ぐ　　　　　（ −ｌ、　　　　　　　　　　　　　　　　　　ｉｕ、３
ツFigure 1 is an overall configuration diagram showing one embodiment of Mokuri's invention, Figure 2 is a block diagram showing the circuit configuration of the light receiving section in Figure 1, and Figure 3 is a program flow diagram of the control unit in Figure 2. It is. 1: receiver, 2: light receiving section, 2a: light receiving element, 3: light emitting section, 3a: light emitting element, 4: smoke detection area. 6.9, 11: Constant voltage power supply, 7. Two light emission control sections, 8: Control section, 10: Clock circuit, 12: Reception system - both sections, 13
: Receiving circuit, 15: Power supply voltage monitoring circuit, 16: A/
D conversion circuit, 17: Reference voltage circuit, 18: Sensitivity setting circuit, 19: Monitor signal output section, 20: Inspection signal output section, 2
1: Fire signal output section. Pi □ − ＼ L gu ( -l, iu, 3
tsu

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発光部からの発射光を受光部で受光し、受光部からの最
初の受光出力を基準値として制御部に設定登録し正おき
、該基準値に基づいて閾値を演算し、煙により減衰した
受光出力と該閾値とを比較して火災判断を行なう減光式
煙感知器において１、前記制御部に設定登録された基準
値の値が正常であるかどうかを判別する判別手段を設け
たことを特徴とする減光式煙感知器。　　　　　−The light emitted from the light emitting part is received by the light receiving part, the first received light output from the light receiving part is set and registered in the control part as a reference value, and the threshold value is calculated based on the reference value, and the received light that has been attenuated by smoke is calculated. In a dimming type smoke detector that makes a fire judgment by comparing the output with the threshold value, 1. A discriminating means is provided for discriminating whether the reference value set and registered in the control section is normal or not. Features a dimming type smoke detector. −
JP2771884U 1984-02-28 1984-02-28 Dimming smoke detector Granted JPS60140188U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2771884U JPS60140188U (en) 1984-02-28 1984-02-28 Dimming smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2771884U JPS60140188U (en) 1984-02-28 1984-02-28 Dimming smoke detector

Publications (2)

Publication Number Publication Date
JPS60140188U true JPS60140188U (en) 1985-09-17
JPH0534075Y2 JPH0534075Y2 (en) 1993-08-30

Family

ID=30524927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2771884U Granted JPS60140188U (en) 1984-02-28 1984-02-28 Dimming smoke detector

Country Status (1)

Country Link
JP (1) JPS60140188U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4703586B2 (en) * 2007-02-16 2011-06-15 能美防災株式会社 Fire detector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133548U (en) * 1980-03-10 1981-10-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56133548U (en) * 1980-03-10 1981-10-09

Also Published As

Publication number Publication date
JPH0534075Y2 (en) 1993-08-30

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