JPS5351998A - Fire alarm unit - Google Patents
Fire alarm unitInfo
- Publication number
- JPS5351998A JPS5351998A JP12695876A JP12695876A JPS5351998A JP S5351998 A JPS5351998 A JP S5351998A JP 12695876 A JP12695876 A JP 12695876A JP 12695876 A JP12695876 A JP 12695876A JP S5351998 A JPS5351998 A JP S5351998A
- Authority
- JP
- Japan
- Prior art keywords
- alarm unit
- fire alarm
- fire
- misalarm
- alarming
- 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
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE: To prevent the misalarm due to such as an open-air fire in a close distance, and to detect the fire over entirely broad district, by only alarming if an object in high temperature and having a large area is detected.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12695876A JPS5931117B2 (en) | 1976-10-21 | 1976-10-21 | fire detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12695876A JPS5931117B2 (en) | 1976-10-21 | 1976-10-21 | fire detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5351998A true JPS5351998A (en) | 1978-05-11 |
JPS5931117B2 JPS5931117B2 (en) | 1984-07-31 |
Family
ID=14948097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12695876A Expired JPS5931117B2 (en) | 1976-10-21 | 1976-10-21 | fire detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931117B2 (en) |
-
1976
- 1976-10-21 JP JP12695876A patent/JPS5931117B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5931117B2 (en) | 1984-07-31 |
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