JP4996381B2 - 火災警報器 - Google Patents
火災警報器 Download PDFInfo
- Publication number
- JP4996381B2 JP4996381B2 JP2007189199A JP2007189199A JP4996381B2 JP 4996381 B2 JP4996381 B2 JP 4996381B2 JP 2007189199 A JP2007189199 A JP 2007189199A JP 2007189199 A JP2007189199 A JP 2007189199A JP 4996381 B2 JP4996381 B2 JP 4996381B2
- Authority
- JP
- Japan
- Prior art keywords
- fire alarm
- smoke
- value
- threshold
- threshold value
- 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.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 claims description 77
- 238000005259 measurement Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 238000012544 monitoring process Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 10
- 238000009833 condensation Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012538 light obscuration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Description
12 煙センサ
13 サンプルホールド回路(計測手段)
14 A/D変換回路(計測手段)
Claims (2)
- 設定された煙検出用のサンプリング周期で煙センサの出力を計測する計測手段と、該計測手段で得られた計測値が予め設定された閾値未満の安全域の場合には火災警報処理を行わずに、該計測値が上記安全域を越えた場合に火災警報処理を行う警報手段とを備えた火災警報器において、
前記安全域の上限を規定する前記閾値を第1閾値とするとともに、該第1閾値から所定幅大きい第2閾値が設定され、
前記サンプリング周期における計測値のうち今回の計測値と直前の計測値とを判定し、直前の計測値が前記安全域であり、かつ、今回の計測値が前記第2閾値以上であった場合に前記火災警報処理を規制するようにしたことを特徴とする火災警報器。 - 前記火災警報処理を規制する場合に、その後の計測値が連続して所定回数前記第2閾値以上となった場合に前記火災警報処理の規制を解除することを特徴とする請求項1に記載の火災警報器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007189199A JP4996381B2 (ja) | 2007-07-20 | 2007-07-20 | 火災警報器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007189199A JP4996381B2 (ja) | 2007-07-20 | 2007-07-20 | 火災警報器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009026110A JP2009026110A (ja) | 2009-02-05 |
JP4996381B2 true JP4996381B2 (ja) | 2012-08-08 |
Family
ID=40397853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007189199A Expired - Fee Related JP4996381B2 (ja) | 2007-07-20 | 2007-07-20 | 火災警報器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4996381B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5322884B2 (ja) * | 2009-10-19 | 2013-10-23 | 能美防災株式会社 | 警報器 |
JP6316711B2 (ja) * | 2014-09-01 | 2018-04-25 | 能美防災株式会社 | 減光式煙感知器及び減光式煙感知システム |
JP7336344B2 (ja) * | 2019-09-30 | 2023-08-31 | ニッタン株式会社 | 煙感知器および煙感知システム |
CN117854218B (zh) * | 2024-03-08 | 2024-05-31 | 山东洋利电气有限公司 | 一种高安全性配电柜火灾报警装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2622118B2 (ja) * | 1987-07-31 | 1997-06-18 | 能美防災株式会社 | 火災警報装置 |
JP3121386B2 (ja) * | 1991-08-27 | 2000-12-25 | 松下電工株式会社 | 火災警報システム |
JPH1063965A (ja) * | 1996-08-27 | 1998-03-06 | Nohmi Bosai Ltd | 火災報知設備 |
JP3941042B2 (ja) * | 2002-03-29 | 2007-07-04 | 能美防災株式会社 | 火災感知器 |
-
2007
- 2007-07-20 JP JP2007189199A patent/JP4996381B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2009026110A (ja) | 2009-02-05 |
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