JP2012164112A5 - - Google Patents
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- JP2012164112A5 JP2012164112A5 JP2011023724A JP2011023724A JP2012164112A5 JP 2012164112 A5 JP2012164112 A5 JP 2012164112A5 JP 2011023724 A JP2011023724 A JP 2011023724A JP 2011023724 A JP2011023724 A JP 2011023724A JP 2012164112 A5 JP2012164112 A5 JP 2012164112A5
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Claims (7)
前記発光素子とは分離配置され、前記発光素子から投光された光線を受光する受光素子と、
前記受光素子による受光量の変化によって煙発生の有無を監視するコントローラと
を備えた光電式分離型感知器であって、
前記発光素子は、１つの主発光素子と、前記主発光素子の周囲に配置された２つ以上の副発光素子とで構成され、
前記コントローラは、煙発生の有無を監視する際に、前記主発光素子を点灯させ、前記主発光素子による受光量の減光率が、前記主発光素子に対してあらかじめ決められた許容減光率以上となった場合には、煙の発生した可能性が高いと判断して前記主発光素子を消灯させた後に前記２つ以上の副発光素子を順次点灯させ、全ての副発光素子によるそれぞれの受光量の減光率を求め、前記２つ以上の副発光素子のそれぞれについて求めた減光率に基づいて、前記主発光素子による受光量の低下の要因が煙の発生によるものか、光軸ずれによるものかを判別する
ことを特徴とする光電式分離型感知器。 A light emitting element;
A light receiving element that is separated from the light emitting element and receives a light beam projected from the light emitting element;
A photoelectric separation type sensor comprising: a controller for monitoring the presence or absence of smoke generation by a change in the amount of light received by the light receiving element;
The light emitting element is composed of one main light emitting element and two or more sub light emitting elements arranged around the main light emitting element,
The controller turns on the main light emitting element when monitoring the presence or absence of smoke generation, and the light attenuation rate of the amount of light received by the main light emitting element is an allowable dimming rate that is predetermined for the main light emitting element. In the case of the above, it is determined that there is a high possibility that smoke has been generated, and after the main light emitting element is turned off, the two or more sub light emitting elements are sequentially turned on. A light attenuation rate of the received light amount is obtained, and based on the light attenuation rate obtained for each of the two or more sub light emitting elements, whether the cause of the decrease in the light received amount by the main light emitting element is due to generation of smoke, A photoelectric separation type sensor characterized by discriminating whether it is caused by displacement.
前記コントローラは、前記２つ以上の副発光素子のそれぞれについて求めた減光率のすべてが、前記２つ以上の副発光素子のそれぞれに対してあらかじめ決められた許容減光率以上である場合には、前記主発光素子による受光量の低下の要因が煙の発生によるものであると判断し、それ以外の場合には、前記主発光素子による受光量の低下の要因が光軸ずれによるものであると判断する
ことを特徴とする光電式分離型感知器。 The photoelectric separation type sensor according to claim 1,
The controller is configured such that all of the light attenuation rates obtained for each of the two or more sub light emitting elements are equal to or greater than a predetermined allowable light attenuation rate for each of the two or more sub light emitting elements. Determines that the cause of the decrease in the amount of light received by the main light emitting element is due to the generation of smoke, and in other cases, the cause of the decrease in the amount of light received by the main light emitting element is due to an optical axis shift. It is judged that there is a photoelectric separation type sensor.
前記コントローラは、前記２つ以上の副発光素子のそれぞれについて求めた減光率のうち、受光量が増加したことにより減光率が負の値となるものがあった場合には、前記主発光素子による受光量の低下の要因が光軸ずれによるものであると判断し、それ以外の場合には、前記主発光素子による受光量の低下の要因が煙の発生によるものであると判断する
ことを特徴とする光電式分離型感知器。 The photoelectric separation type sensor according to claim 1,
The controller emits the main light emission when the light attenuation rate obtained for each of the two or more sub light emitting elements has a negative value due to an increase in the amount of received light. Judge that the cause of the decrease in the amount of light received by the element is due to the optical axis shift, otherwise, determine that the cause of the decrease in the amount of light received by the main light emitting element is due to the generation of smoke. A photoelectric separation type sensor characterized by.
前記コントローラは、光軸ずれと判断した後の光軸調整を行うための設定モードにおいては、前記２つ以上の副発光素子を順次点灯させ、前記２つ以上の副発光素子のそれぞれからの受光量があらかじめ定めた規定範囲内となることで光軸調整完了と判断する
ことを特徴とする光電式分離型感知器。 The photoelectric separation type sensor according to any one of claims 1 to 3,
In the setting mode for adjusting the optical axis after determining that the optical axis is shifted, the controller sequentially turns on the two or more sub-light emitting elements and receives light from each of the two or more sub-light emitting elements. A photoelectric separation type sensor characterized in that the optical axis adjustment is completed when the amount is within a predetermined range.
前記発光素子とは分離配置され、前記発光素子から投光された光線を受光する受光素子と、
前記受光素子による受光量の変化によって煙発生の有無を監視するコントローラと
を備えた光電式分離型感知器に用いられる受光量低下要因判別方法であって、
煙発生の有無を監視する際に、
前記主発光素子を点灯させ、前記主発光素子による受光量の減光率を算出する第１ステップと、
算出された前記減光率が前記主発光素子に対してあらかじめ決められた許容減光率以上となった場合には、煙の発生した可能性が高いと判断して前記主発光素子を消灯させた後に、前記２つ以上の副発光素子を順次点灯させる第２ステップと、
前記２つ以上の副発光素子を順次点灯させることで全ての副発光素子によるそれぞれの受光量の減光率を算出する第３ステップと、
前記２つ以上の副発光素子のそれぞれについて算出された減光率に基づいて、前記主発光素子による受光量の低下の要因が煙の発生によるものか、光軸ずれによるものかを判別する第４ステップと
を備えることを特徴とする光電式分離型感知器に用いられる受光量低下要因判別方法。 A light emitting device composed of one main light emitting device and two or more sub light emitting devices disposed around the main light emitting device;
A light receiving element that is separated from the light emitting element and receives a light beam projected from the light emitting element;
A method for determining a factor of decrease in received light amount used in a photoelectric separation type sensor, comprising: a controller that monitors the presence or absence of smoke generation by a change in the amount of light received by the light receiving element;
When monitoring the presence of smoke,
A first step of turning on the main light emitting element and calculating a dimming rate of the amount of light received by the main light emitting element;
If the calculated dimming rate is equal to or greater than a predetermined allowable dimming rate for the main light emitting element, it is determined that smoke is likely to be generated and the main light emitting element is turned off. A second step of sequentially lighting the two or more sub-light emitting elements,
A third step of calculating a dimming rate of each received light amount by all the sub light emitting elements by sequentially turning on the two or more sub light emitting elements;
Based on the dimming rate calculated for each of the two or more sub-light emitting elements, it is determined whether the cause of the decrease in the amount of light received by the main light emitting element is due to the generation of smoke or the deviation of the optical axis. And a step for determining the factor of decrease in received light amount used in the photoelectric separation type sensor.
光軸ずれと判断した後の光軸調整を行うための設定モードにおいては、
前記２つ以上の副発光素子を順次点灯させる第５ステップと、
前記発光素子の光軸が調整された結果として、前記２つ以上の副発光素子のそれぞれからの受光量があらかじめ定めた規定範囲内となることで光軸調整完了と判断する第６ステップと
を備えることを特徴とする光電式分離型感知器に用いられる受光量低下要因判別方法。 In the light reception amount decreasing factor determination method used for the photoelectric separation type sensor according to claim 5,
In the setting mode for adjusting the optical axis after determining that the optical axis has shifted,
A fifth step of sequentially lighting the two or more sub-light emitting elements;
As a result of adjusting the optical axis of the light emitting element, a sixth step of determining that the optical axis adjustment is completed when the amount of light received from each of the two or more sub light emitting elements is within a predetermined range. A method for determining a factor of decrease in received light amount used in a photoelectric separation type sensor.
前記発光素子とは分離配置され、前記発光素子から投光された光線を受光する受光素子と、A light receiving element that is separated from the light emitting element and receives a light beam projected from the light emitting element;
を備えた光電式分離型感知器であって、A photoelectric separation type sensor comprising:
前記発光素子は、１つの主発光素子と、前記主発光素子の周囲に、照射範囲をずらして配置される複数の副発光素子とで構成され、The light-emitting element is composed of one main light-emitting element and a plurality of sub-light-emitting elements arranged around the main light-emitting element at different irradiation ranges,
前記主発光素子および前記複数の副発光素子のそれぞれの点灯による受光量に基づき、前記主発光素子による受光量の低下の要因が煙の発生によるものか、光軸ずれによるものかを判別するBased on the amount of light received by lighting each of the main light-emitting element and the plurality of sub-light-emitting elements, it is determined whether the cause of the decrease in the amount of light received by the main light-emitting element is due to generation of smoke or optical axis misalignment.
ことを特徴とする光電式分離型感知器。A photoelectric separation type sensor characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011023724A JP5698996B2 (en) | 2011-02-07 | 2011-02-07 | Photoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011023724A JP5698996B2 (en) | 2011-02-07 | 2011-02-07 | Photoelectric sensor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012164112A JP2012164112A (en) | 2012-08-30 |
| JP2012164112A5 true JP2012164112A5 (en) | 2014-03-27 |
| JP5698996B2 JP5698996B2 (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011023724A Active JP5698996B2 (en) | 2011-02-07 | 2011-02-07 | Photoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5698996B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7452878B2 (en) | 2019-03-26 | 2024-03-19 | 日本電気株式会社 | Receiver, detection system and detection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63184041A (en) * | 1987-01-27 | 1988-07-29 | Matsushita Electric Works Ltd | Extinction type smoke sensor |
| JPH03218422A (en) * | 1989-11-20 | 1991-09-26 | Tokico Ltd | Sensor |
| DE19925196C2 (en) * | 1999-05-26 | 2001-12-13 | Inst Chemo Biosensorik | Gas sensor arrangement |
| JP2000356593A (en) * | 1999-06-16 | 2000-12-26 | Nohmi Bosai Ltd | Photoelectric separation type sensor |
| JP5280655B2 (en) * | 2007-07-12 | 2013-09-04 | ホーチキ株式会社 | Dimming sensor |
-
2011
- 2011-02-07 JP JP2011023724A patent/JP5698996B2/en active Active
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