Title:
FLAME DETECTOR
Document Type and Number:
Japanese Patent JP2020115097
Kind Code:
A
Abstract:
To realize a flame detector with high reliability which has no malfunction and no non-operation state.SOLUTION: A human body detection section outputs a human body detection signal to a human body determination section. The human body determination section determines whether or not a human body exists on the basis of the human body detection signal. When determining that the human body exists, the human body detection signal is output to an output determination section. An ultraviolet ray detection section outputs an ultraviolet ray detection signal to a flame determination section. The flame determination section determines whether or not flame exists on the basis of the ultraviolet ray detection signal. When determining that the flame exists, the flame detection signal is output to an output determination section. The output determination section outputs a threatening signal when the flame detection signal is input within preset first set time after inputting the human body detection signal or when the human body detection signal is input within preset second set time after inputting the flame detection signal. When the flame detection signal is input within preset third set time after outputting the threatening signal, the output determination section outputs a notification signal.SELECTED DRAWING: Figure 1
Inventors:
MURAKAMI KEISUKE
AZUMA KAZUHIKO
AZUMA KAZUHIKO
Application Number:
JP2019006348A
Publication Date:
July 30, 2020
Filing Date:
January 17, 2019
Export Citation:
Assignee:
TAKENAKA ENG CO LTD
International Classes:
G01J1/42; G08B13/19; G08B15/00; G08B17/12
Domestic Patent References:
| JP2010198616A | 2010-09-09 | |||
| JP2012009690A | 2012-01-12 | |||
| JP2013195187A | 2013-09-30 | |||
| JP2002214036A | 2002-07-31 | |||
| JP2010117895A | 2010-05-27 | |||
| JP2008004022A | 2008-01-10 |