FIRE ALARM SYSTEM AND TESTING METHOD THEREFOR

Title:

FIRE ALARM SYSTEM AND TESTING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2016/203607

Kind Code:

A1

Abstract:

[Problem] To enable an inspector, who is testing a fire sensor by using a testing tool, to grasp, easily and with certainty, test alarms triggered by detection of heat, smoke and gas by means of an alarm indication lamp without the inspector checking an alarm indication on the fire receiver side. [Solution] A composite fire sensor 12, which detects heat temperature, smoke concentration and gas concentration due to a fire, is connected to a transmission path 16, which extends from a fire receiver 10. A test mode is set in the fire sensor 12 when a fire test operation is detected by the fire receiver 10. The fire sensor 12 controls an alarm indication lamp 30 to present different indications in accordance with respective alarm tests when such alarm tests are performed by detecting heat temperature, detecting smoke concentration, and detecting gas concentration using a test tool 84 in a state where the test mode has been set. For example, the fire sensor 12 makes the alarm indication lamp 30 repeatedly flash once in heat detection, flash two times in smoke detection and flash three times in gas detection with a prescribed rest period between the flashes.

Inventors:

DAVID BROWN (GB)
DOI MANABU (JP)
KOYAMA KIYOAKI (JP)
TATSUNO HIROYUKI (JP)
KASE HIROYUKI (JP)

Application Number:

PCT/JP2015/067585

Publication Date:

December 22, 2016

Filing Date:

June 18, 2015

Export Citation:

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Assignee:

HOCHIKI CO (JP)
BROWN DAVID (GB)
DOI MANABU (JP)
KOYAMA KIYOAKI (JP)
TATSUNO HIROYUKI (JP)
KASE HIROYUKI (JP)

International Classes:

G08B17/00

Foreign References:

JP2005251037A	2005-09-15
JP2005208957A	2005-08-04
JP2004355110A	2004-12-16

Other References: