FIRE ALARM

PROBLEM TO BE SOLVED: To provide a fire alarm capable of adjusting a determination condition of fire breakout based on composite occurrence degree of a phenomenon caused by a fire such as smoke and CO to discriminate between a non-fire such as smoking and a fire caused by careless handling of a ciga...

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1. Verfasser:	NISHIDA MITSUTERU
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
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creator	NISHIDA MITSUTERU
description	PROBLEM TO BE SOLVED: To provide a fire alarm capable of adjusting a determination condition of fire breakout based on composite occurrence degree of a phenomenon caused by a fire such as smoke and CO to discriminate between a non-fire such as smoking and a fire caused by careless handling of a cigarette butt as correctly and quickly as possible. SOLUTION: The fire alarm 1 includes an evaluating section 31 for evaluating CO concentration detected by a CO detecting section 10 and smoke density detected by a smoke detecting section 20 based on a fire alarm determining condition to output a fire alarm notification command, and a fire alarm determination condition adjusting section 33 for adjusting a fire alarm determination condition based on reference time representing elapsed time between a first time point when the CO concentration exceeds a CO concentration alarm threshold value and a second time point when the smoke density exceeds a smoke density alarm threshold value, and a reference detection value representing a detection value of the CO concentration on and after the second point of time. COPYRIGHT: (C)2009,JPO&INPIT
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SOLUTION: The fire alarm 1 includes an evaluating section 31 for evaluating CO concentration detected by a CO detecting section 10 and smoke density detected by a smoke detecting section 20 based on a fire alarm determining condition to output a fire alarm notification command, and a fire alarm determination condition adjusting section 33 for adjusting a fire alarm determination condition based on reference time representing elapsed time between a first time point when the CO concentration exceeds a CO concentration alarm threshold value and a second time point when the smoke density exceeds a smoke density alarm threshold value, and a reference detection value representing a detection value of the CO concentration on and after the second point of time. 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SOLUTION: The fire alarm 1 includes an evaluating section 31 for evaluating CO concentration detected by a CO detecting section 10 and smoke density detected by a smoke detecting section 20 based on a fire alarm determining condition to output a fire alarm notification command, and a fire alarm determination condition adjusting section 33 for adjusting a fire alarm determination condition based on reference time representing elapsed time between a first time point when the CO concentration exceeds a CO concentration alarm threshold value and a second time point when the smoke density exceeds a smoke density alarm threshold value, and a reference detection value representing a detection value of the CO concentration on and after the second point of time. COPYRIGHT: (C)2009,JPO&INPIT</description><subject>ALARM SYSTEMS</subject><subject>ORDER TELEGRAPHS</subject><subject>PHYSICS</subject><subject>SIGNALLING</subject><subject>SIGNALLING OR CALLING SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOBy8wxyVXD0cQzy5WFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgYGloZGRhYmZo7GRCkCAH4EHBw</recordid><startdate>20090604</startdate><enddate>20090604</enddate><creator>NISHIDA MITSUTERU</creator><scope>EVB</scope></search><sort><creationdate>20090604</creationdate><title>FIRE ALARM</title><author>NISHIDA MITSUTERU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2009122846A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>ALARM SYSTEMS</topic><topic>ORDER TELEGRAPHS</topic><topic>PHYSICS</topic><topic>SIGNALLING</topic><topic>SIGNALLING OR CALLING SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>NISHIDA MITSUTERU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NISHIDA MITSUTERU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>FIRE ALARM</title><date>2009-06-04</date><risdate>2009</risdate><abstract>PROBLEM TO BE SOLVED: To provide a fire alarm capable of adjusting a determination condition of fire breakout based on composite occurrence degree of a phenomenon caused by a fire such as smoke and CO to discriminate between a non-fire such as smoking and a fire caused by careless handling of a cigarette butt as correctly and quickly as possible. SOLUTION: The fire alarm 1 includes an evaluating section 31 for evaluating CO concentration detected by a CO detecting section 10 and smoke density detected by a smoke detecting section 20 based on a fire alarm determining condition to output a fire alarm notification command, and a fire alarm determination condition adjusting section 33 for adjusting a fire alarm determination condition based on reference time representing elapsed time between a first time point when the CO concentration exceeds a CO concentration alarm threshold value and a second time point when the smoke density exceeds a smoke density alarm threshold value, and a reference detection value representing a detection value of the CO concentration on and after the second point of time. COPYRIGHT: (C)2009,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record>
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subjects	ALARM SYSTEMS ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
title	FIRE ALARM
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