JPS52103998A - Smoke detection device - Google Patents
Smoke detection deviceInfo
- Publication number
- JPS52103998A JPS52103998A JP2036676A JP2036676A JPS52103998A JP S52103998 A JPS52103998 A JP S52103998A JP 2036676 A JP2036676 A JP 2036676A JP 2036676 A JP2036676 A JP 2036676A JP S52103998 A JPS52103998 A JP S52103998A
- Authority
- JP
- Japan
- Prior art keywords
- detection device
- smoke detection
- component
- light
- sticking
- 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
Links
Landscapes
- Fire-Detection Mechanisms (AREA)
Abstract
PURPOSE: To prevent wrong warning caused by sticking of dust to light emitting component or light receiving component, by selecting the time constant after installing the differentiation circuit on back of the light sensing component.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2036676A JPS52103998A (en) | 1976-02-26 | 1976-02-26 | Smoke detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2036676A JPS52103998A (en) | 1976-02-26 | 1976-02-26 | Smoke detection device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52103998A true JPS52103998A (en) | 1977-08-31 |
Family
ID=12025073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2036676A Pending JPS52103998A (en) | 1976-02-26 | 1976-02-26 | Smoke detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52103998A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110942583A (en) * | 2018-09-21 | 2020-03-31 | 中国移动通信有限公司研究院 | Method, device and terminal for reporting smoke alarm |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4864977A (en) * | 1971-12-09 | 1973-09-07 |
-
1976
- 1976-02-26 JP JP2036676A patent/JPS52103998A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4864977A (en) * | 1971-12-09 | 1973-09-07 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110942583A (en) * | 2018-09-21 | 2020-03-31 | 中国移动通信有限公司研究院 | Method, device and terminal for reporting smoke alarm |
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