JPS6473494A - Fire alarm system - Google Patents

Fire alarm system

Info

Publication number
JPS6473494A
JPS6473494A JP22970387A JP22970387A JPS6473494A JP S6473494 A JPS6473494 A JP S6473494A JP 22970387 A JP22970387 A JP 22970387A JP 22970387 A JP22970387 A JP 22970387A JP S6473494 A JPS6473494 A JP S6473494A
Authority
JP
Japan
Prior art keywords
occurrence
extracted
sensor
abnormality
memory device
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.)
Pending
Application number
JP22970387A
Other languages
Japanese (ja)
Inventor
Mitsunori Katagiri
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 JP22970387A priority Critical patent/JPS6473494A/en
Publication of JPS6473494A publication Critical patent/JPS6473494A/en
Pending legal-status Critical Current

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  • Fire-Detection Mechanisms (AREA)

Abstract

PURPOSE:To pursue a correcter cause by converting a continuous detected signal obtained from a sensor before and after the occurrence of an abnormality into an approximate expression, and extracting its characteristics, comparing the extracted characteristics with those of a basic signal change, and selecting and displaying the most similar basic characteristics. CONSTITUTION:When a central device 1 detects the occurrence of the abnormality and operates, in order to analyze the cause of the occurrence, accumulated data registered to a memory device 14 are converted into the approximate expression, and its characteristics are extracted. The extracted characteristics are compared with those in the condition of plural basic signal changes registered in the memory device 14 beforehand, and the most similar basic data are selected. Further, a selected result obtained in such a way is displayed. Thus, a manager, etc., can easily know an environmental change in a sensor circumference after the sensor operation.
JP22970387A 1987-09-16 1987-09-16 Fire alarm system Pending JPS6473494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22970387A JPS6473494A (en) 1987-09-16 1987-09-16 Fire alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22970387A JPS6473494A (en) 1987-09-16 1987-09-16 Fire alarm system

Publications (1)

Publication Number Publication Date
JPS6473494A true JPS6473494A (en) 1989-03-17

Family

ID=16896376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22970387A Pending JPS6473494A (en) 1987-09-16 1987-09-16 Fire alarm system

Country Status (1)

Country Link
JP (1) JPS6473494A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223896A (en) * 1983-06-03 1984-12-15 能美防災株式会社 Fire alarm with sensor
JPS61237194A (en) * 1985-04-12 1986-10-22 ホーチキ株式会社 Fire alarm
JPS6292097A (en) * 1985-10-17 1987-04-27 ホーチキ株式会社 Smoke detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59223896A (en) * 1983-06-03 1984-12-15 能美防災株式会社 Fire alarm with sensor
JPS61237194A (en) * 1985-04-12 1986-10-22 ホーチキ株式会社 Fire alarm
JPS6292097A (en) * 1985-10-17 1987-04-27 ホーチキ株式会社 Smoke detector

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