CN104183080A - Smoke-sensing fire detection method and device - Google Patents
Smoke-sensing fire detection method and device Download PDFInfo
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- CN104183080A CN104183080A CN201410432571.2A CN201410432571A CN104183080A CN 104183080 A CN104183080 A CN 104183080A CN 201410432571 A CN201410432571 A CN 201410432571A CN 104183080 A CN104183080 A CN 104183080A
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Abstract
The invention discloses a smoke-sensing fire detection method and device. A smoke sensor and an air speed sensor are used for measuring a smoke concentration value and an air speed value of an environment respectively in real time, and the smoke concentration value and the air speed value are sent to a controller. The controller receives the smoke concentration value and the air speed value, a smoke concentration threshold value is adjusted according to the air speed value, the actual smoke concentration value is compared with the adjusted smoke concentration threshold value, and if the actual smoke concentration value is higher than the smoke concentration threshold value, the controller triggers a sound and light alarm module. The smoke concentration threshold value is adjusted dynamically according to obtained air speed values of the peripheral environment, and if the air speed sensor senses that peripheral air flows fiercely, the smoke concentration threshold value is reduced accordingly; otherwise, if the air speed sensor senses that the peripheral air flows gently, the smoke concentration threshold value is increased accordingly. The smoke-sensing fire detection method and device are suitable for wide-range air speed variation and can conduct accurate alarm on the situation that fires occur.
Description
Technical field
The present invention relates to fire protection field, relate in particular to a kind of cigarette sense fire detecting method and device.
Background technology
Photoelectric smoke sense fire detector is the main type photodetector using in current fire alarm system, and it utilizes smoke particle to scattering of light feature, by measuring the variation of the indirect perception smokescope of scattering light intensity.
In actual conditions, the smokescope of cigarette sense fire detector institute perception is subject to the mobile variable effect of ambient air obvious.When cigarette sense fire detector ambient air flows gently, the smoke particle rate of propagation of detector periphery is slow, and detector easily perceives smog and exists, and and then judges that fire occurs.When ambient air flows violently, the smoke particle rate of propagation of detector periphery is obviously accelerated, and the sensitivity that detector perception smog exists declines, and and then affects fire and judge precision.But existing photoelectric smoke sense fire detector often adopts single fixed threshold as judging fire generation foundation, cannot change and make dynamic response according to surrounding enviroment, therefore in the violent occasion of Air Flow, existing cigarette sense fire detector is difficult to dynamically adapting wind speed variation on a large scale, thus the generation that causes failing to report alert phenomenon.
Summary of the invention
For the defect of existing fire alarm technology, a kind of cigarette sense fire detecting method and device are provided, the smokescope threshold value of cigarette sense fire detecting arrangement changes and makes dynamic response according to surrounding enviroment wind speed, adapts to wind speed on a large scale and changes, and the situation of breaking out of fire is accurately reported to the police.
This cigarette sense fire detecting method comprises the following steps, and smoke transducer, air velocity transducer are set in area to be monitored, and smoke transducer, air velocity transducer are measured smokescope value, the air speed value of its region in real time, and are sent to controller; Controller is connected with smoke transducer, air velocity transducer, be used for receiving smokescope value, air speed value, regulate smokescope threshold value according to air speed value, and the actual smokescope value that smoke transducer is recorded with regulate after smokescope threshold value compare, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module, and sound and light alarm module is used for fire alarm.
By technique scheme, controller regulates smokescope threshold value to be specially according to air speed value, according to the range QUOTE of described air velocity transducer
?
and the air speed value QUOTE recording in real time
?
, the calculated threshold coefficient QUOTE that floats
?
; The standard smokescope threshold value QUOTE intrinsic according to smoke transducer used
?
, the air speed influence factor
, calculate according to ambient wind velocity definite smokescope threshold value QUOTE in real time
?
.
By technique scheme, the air speed influence factor
span is 0.1 ~ 0.3.
By technique scheme, described sound and light alarm module comprises hummer and LED alarm lamp.
By technique scheme, this controller also comprises mu balanced circuit.
Cigarette sense fire detecting arrangement provided by the invention comprises cabinet and is located at controller, smoke transducer, the sound and light alarm module of cabinet inside, above cabinet, is provided with air velocity transducer, and cabinet is provided with ventilating opening; Described smoke transducer, air velocity transducer, sound and light alarm module are connected with described controller respectively; Smokescope value, air speed value that controller records for receiving smoke transducer, air velocity transducer, regulate in real time smokescope threshold value according to air speed value, and the smokescope threshold value after actual smokescope value and adjusting is compared, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module.
By technique scheme, controller regulates smokescope threshold value to be specially according to air speed value, according to the range QUOTE of described air velocity transducer
?
and the air speed value QUOTE recording in real time
?
, the calculated threshold coefficient QUOTE that floats
?
; The standard smokescope threshold value QUOTE intrinsic according to smoke transducer used
?
, the air speed influence factor
, calculate according to ambient wind velocity definite smokescope threshold value QUOTE in real time
?
.
By technique scheme, the air speed influence factor
span is 0.1 ~ 0.3.
By technique scheme, described sound and light alarm module comprises hummer and LED alarm lamp.
By technique scheme, this controller also comprises mu balanced circuit.
The beneficial effect that the present invention produces is: the smokescope threshold value of cigarette sense fire detecting arrangement changes and makes dynamic response according to surrounding enviroment wind speed, adapts to wind speed on a large scale and changes, and the situation of breaking out of fire is accurately reported to the police.
?
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structured flowchart of embodiment of the present invention cigarette sense fire detecting arrangement;
Fig. 2 is the process flow diagram of embodiment of the present invention cigarette sense fire detecting method.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In the embodiment of the present invention, as shown in Figure 1, in embodiment of the present invention cigarette sense fire detecting arrangement, smoke transducer, air velocity transducer, sound and light alarm module are connected with controller respectively.In the present embodiment, described air velocity transducer can obtain periphery wind speed information, can measuring wind scope be 0 ~ 50m/s.Measuring accuracy is wind speed
1%, the analog voltage signal of output 0.4V ~ 2V is as wind velocity signal.Wind speed size is directly proportional to output analog voltage signal size.Smoke transducer is photoelectric smoke sensor, and static working current is 32 QUOTE
?
, the analog voltage signal of output 0 V ~ 5V is as smokescope signal.Smokescope size is directly proportional to output analog voltage signal size.Smokescope value, air speed value that controller records for receiving smoke transducer, air velocity transducer, regulate smokescope threshold value according to air speed value, and the smokescope threshold value after actual smokescope value and adjusting is compared, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module.In the present embodiment, controller adopts 8 single chip computer AT mega128L of AVR kernel as control core, ATmega128L adopts advanced RISC framework, can carry out nearly 133 work orders, 10,8 tunnel ADC and 53 programmable I/O interfaces are provided, in ensureing low-power consumption, there is powerful operational performance.Air velocity transducer is directly connected with the 2 road ADC of ATmega128L with 2 road analog voltage output signals of smoke transducer, through analog to digital conversion, judges as controller the foundation that fire occurs.In controller, comprise mu balanced circuit, it provides stable voltage for controller.
By technique scheme, controller regulates fire decision threshold according to air speed value, according to the range QUOTE of described air velocity transducer
?
and the air speed value QUOTE recording in real time
?
, the calculated threshold coefficient QUOTE that floats
?
; The standard smokescope threshold value QUOTE intrinsic according to smoke transducer used
?
, the air speed influence factor
, span is 0.1 ~ 0.3.Calculate according to ambient wind velocity definite smokescope threshold value QUOTE in real time
?
; The actual smokescope value QUOTE that smoke transducer is recorded
?
with described smokescope threshold value QUOTE
?
compare, if QUOTE
?
, controller triggers sound and light alarm module.The wherein range QUOTE of air velocity transducer
?
only relevant with the type selecting of air velocity transducer, be the air velocity transducer performance parameter of dispatching from the factory.Standard smokescope threshold value QUOTE
?
only relevant with the type selecting of smoke transducer, standard smokescope threshold value QUOTE
?
for wind speed is in zero situation, according to the relevant compulsory standard of country, smoke transducer judges the threshold value that fire occurs.Air speed influence factor Q UOTE
?
in order to characterize the weighing factor of wind speed to smokescope threshold value, conventional span is 0.1 ~ 0.3, can choose according to scene needs and Choice of Sensors.
Whether controller exceeds through the smokescope Threshold Detection fire of real-time adjusting and occurs according to obtained actual smokescope value.Smokescope threshold value is carried out dynamic adjustments according to obtained surrounding enviroment air speed value.If air velocity transducer perception ambient air flows violent, the corresponding reduction of smokescope threshold value.Otherwise, mild if air velocity transducer perception ambient air flows, the corresponding raising of smokescope threshold value.
Sound and light alarm module comprises hummer and LED alarm lamp, is all connected with controller, and after sound and light alarm module is triggered, hummer, in excited state, sends and continues high distribution audible alarm.LED alarm lamp is high frequency flicker state.If controller not perception fire occurs, sound and light alarm module is in dormant state, and hummer and LED all do not respond.
As shown in Figure 2, embodiment of the present invention cigarette sense fire detecting method comprises the following steps, smoke transducer, air velocity transducer smokescope value, the air speed value of real-time measurement environment respectively, and be sent to controller.Controller receives smokescope value, air speed value, regulate smokescope threshold value according to air speed value, and the smokescope threshold value after actual smokescope value and adjusting is compared, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module.
In the present embodiment, described air velocity transducer can obtain periphery wind speed information, can measuring wind scope be 0 ~ 50m/s.Measuring accuracy is wind speed
1%, the analog voltage signal of output 0.4V ~ 2V is as wind velocity signal.Wind speed size is directly proportional to output analog voltage signal size.Smoke transducer is photoelectric smoke sensor, and static working current is 32 QUOTE
?
, the analog voltage signal of output 0 V ~ 5V is as smokescope signal.Smokescope size is directly proportional to output analog voltage signal size.Smokescope value, air speed value that controller records for receiving smoke transducer, air velocity transducer, regulate smokescope threshold value according to air speed value, and the smokescope threshold value after actual smokescope value and adjusting is compared, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module.In the present embodiment, controller adopts 8 single chip computer AT mega128L of AVR kernel as control core, ATmega128L adopts advanced RISC framework, can carry out nearly 133 work orders, 10,8 tunnel ADC and 53 programmable I/O interfaces are provided, in ensureing low-power consumption, there is powerful operational performance.Air velocity transducer is directly connected with the 2 road ADC of ATmega128L with 2 road analog voltage output signals of smoke transducer, through analog to digital conversion, judges as controller the foundation that fire occurs.In controller, comprise mu balanced circuit, it provides stable voltage for controller.
By technique scheme, controller regulates fire decision threshold according to air speed value, according to the range QUOTE of described air velocity transducer
?
and the air speed value QUOTE recording in real time
?
, the calculated threshold coefficient QUOTE that floats
?
; The standard smokescope threshold value QUOTE intrinsic according to smoke transducer used
?
, the air speed influence factor
, span is 0.1 ~ 0.3.Calculate according to ambient wind velocity definite smokescope threshold value QUOTE in real time
?
; The actual smokescope value QUOTE that smoke transducer is recorded
?
with described smokescope threshold value QUOTE
?
compare, if QUOTE
?
, controller triggers sound and light alarm module.The wherein range QUOTE of air velocity transducer
?
only relevant with the type selecting of air velocity transducer, be the air velocity transducer performance parameter of dispatching from the factory.Standard smokescope threshold value QUOTE
?
only relevant with the type selecting of smoke transducer, standard smokescope threshold value QUOTE
?
for wind speed is in zero situation, according to the relevant compulsory standard of country, smoke transducer judges the threshold value that fire occurs.Air speed influence factor Q UOTE
?
in order to characterize the weighing factor of wind speed to smokescope threshold value, conventional span is 0.1 ~ 0.3, can choose according to scene needs and Choice of Sensors.
Whether controller exceeds through the smokescope Threshold Detection fire of real-time adjusting and occurs according to obtained actual smokescope value.Smokescope threshold value is carried out dynamic adjustments according to obtained surrounding enviroment air speed value.If air velocity transducer perception ambient air flows violent, the corresponding reduction of smokescope threshold value.Otherwise, mild if air velocity transducer perception ambient air flows, the corresponding raising of smokescope threshold value.
Sound and light alarm module comprises hummer and LED alarm lamp, is all connected with controller, and after sound and light alarm module is triggered, hummer, in excited state, sends and continues high distribution audible alarm.LED alarm lamp is high frequency flicker state.If controller not perception fire occurs, sound and light alarm module is in dormant state, and hummer and LED all do not respond.
In cigarette sense fire detecting method provided by the invention and device, the smokescope threshold value of cigarette sense fire detecting arrangement changes and makes dynamic response according to surrounding enviroment wind speed, adapts to wind speed on a large scale and changes, and the situation of breaking out of fire is accurately reported to the police.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a cigarette sense fire detecting method, it is characterized in that, the method comprises the following steps, and smoke transducer, air velocity transducer are set in area to be monitored, smoke transducer, air velocity transducer are measured smokescope value, the air speed value of its region in real time, and are sent to controller; Controller is connected with smoke transducer, air velocity transducer, be used for receiving smokescope value, air speed value, regulate smokescope threshold value according to air speed value, and the actual smokescope value that smoke transducer is recorded with regulate after smokescope threshold value compare, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module, and sound and light alarm module is used for fire alarm.
2. cigarette sense fire detecting method according to claim 1, is characterized in that, controller regulates smokescope threshold value to be specially according to air speed value, according to the range of described air velocity transducer
and the air speed value recording in real time
, the calculated threshold coefficient that floats
; The standard smokescope threshold value intrinsic according to smoke transducer used
, the air speed influence factor
, calculate according to ambient wind velocity definite smokescope threshold value in real time
.
3. cigarette sense fire detecting method according to claim 1, is characterized in that the air speed influence factor
span is 0.1 ~ 0.3.
4. cigarette sense fire detecting method according to claim 1, is characterized in that, described sound and light alarm module comprises hummer and LED alarm lamp.
5. cigarette sense fire detecting method according to claim 1, is characterized in that, this controller also comprises mu balanced circuit.
6. a cigarette sense fire detecting arrangement, is characterized in that, this device comprises cabinet and is located at the controller of cabinet inside, smoke transducer, sound and light alarm module, above cabinet, is provided with air velocity transducer, and cabinet is provided with ventilating opening; Described smoke transducer, air velocity transducer, sound and light alarm module are connected with described controller respectively; Smokescope value, air speed value that controller records for receiving smoke transducer, air velocity transducer, regulate in real time smokescope threshold value according to air speed value, and the smokescope threshold value after actual smokescope value and adjusting is compared, if actual smokescope value is greater than the smokescope threshold value after adjusting, controller triggers sound and light alarm module.
7. cigarette sense fire detecting arrangement according to claim 6, is characterized in that, controller regulates smokescope threshold value to be specially according to air speed value, according to the range of described air velocity transducer
and the air speed value recording in real time
, the calculated threshold coefficient that floats
; The standard smokescope threshold value intrinsic according to smoke transducer used
, the air speed influence factor
, calculate according to ambient wind velocity definite smokescope threshold value in real time
.
8. cigarette sense fire detecting arrangement according to claim 6, is characterized in that the air speed influence factor
span is 0.1 ~ 0.3.
9. cigarette sense fire detecting arrangement according to claim 6, is characterized in that, described sound and light alarm module comprises hummer and LED alarm lamp.
10. cigarette sense fire detecting arrangement according to claim 6, is characterized in that, this controller also comprises mu balanced circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432571.2A CN104183080B (en) | 2014-08-29 | 2014-08-29 | A kind of cigarette sense fire detecting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432571.2A CN104183080B (en) | 2014-08-29 | 2014-08-29 | A kind of cigarette sense fire detecting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104183080A true CN104183080A (en) | 2014-12-03 |
| CN104183080B CN104183080B (en) | 2016-08-24 |
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ID=51964085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410432571.2A Expired - Fee Related CN104183080B (en) | 2014-08-29 | 2014-08-29 | A kind of cigarette sense fire detecting method and device |
Country Status (1)
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| CN (1) | CN104183080B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106341911A (en) * | 2016-08-29 | 2017-01-18 | 无锡卓信信息科技股份有限公司 | Intelligent building firefighting monitoring system based on HIS-07 smoke sensors |
| CN109102672A (en) * | 2018-08-21 | 2018-12-28 | 中车南京浦镇车辆有限公司 | Useless row's linkage circuit based on rail vehicle fire cigarette sense detection |
| JP2019021020A (en) * | 2017-07-18 | 2019-02-07 | 能美防災株式会社 | Movable type smoke detection device |
| CN109406721A (en) * | 2018-09-26 | 2019-03-01 | 江苏史利姆智能测控技术有限公司 | A kind of gas detection method based on pneumatic detection |
| CN109406722A (en) * | 2018-09-26 | 2019-03-01 | 江苏史利姆智能测控技术有限公司 | A kind of gas detecting system based on pneumatic detection |
| CN110037525A (en) * | 2019-04-24 | 2019-07-23 | 福建工程学院 | A kind of Intelligent mobile paper money incinerates management system and method |
| CN110992615A (en) * | 2019-12-27 | 2020-04-10 | 中消云（北京）物联网科技研究院有限公司 | Smoke detection method and device and detector |
| CN111724562A (en) * | 2020-06-05 | 2020-09-29 | 珠海格力电器股份有限公司 | Smoke alarm and correction method thereof |
| CN112286048A (en) * | 2019-07-25 | 2021-01-29 | 上海长智系统集成有限公司 | Self-adaptive fire risk early warning method, device, equipment, system and medium |
| CN112614293A (en) * | 2020-12-04 | 2021-04-06 | 广东电力通信科技有限公司 | Electric power Internet of things safety early warning method and system based on edge calculation |
| CN112820062A (en) * | 2021-01-19 | 2021-05-18 | 武汉拓宝科技股份有限公司 | Fire occurrence probability prediction method and system |
| CN113484205A (en) * | 2021-06-22 | 2021-10-08 | 中国商用飞机有限责任公司 | Smoke detection system and aircraft with same |
| CN116106505A (en) * | 2023-04-13 | 2023-05-12 | 西南石油大学 | Concentration analysis system and analysis method for natural gas exploitation |
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| CN109406721A (en) * | 2018-09-26 | 2019-03-01 | 江苏史利姆智能测控技术有限公司 | A kind of gas detection method based on pneumatic detection |
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| CN110037525A (en) * | 2019-04-24 | 2019-07-23 | 福建工程学院 | A kind of Intelligent mobile paper money incinerates management system and method |
| CN112286048A (en) * | 2019-07-25 | 2021-01-29 | 上海长智系统集成有限公司 | Self-adaptive fire risk early warning method, device, equipment, system and medium |
| CN110992615A (en) * | 2019-12-27 | 2020-04-10 | 中消云（北京）物联网科技研究院有限公司 | Smoke detection method and device and detector |
| CN111724562A (en) * | 2020-06-05 | 2020-09-29 | 珠海格力电器股份有限公司 | Smoke alarm and correction method thereof |
| CN111724562B (en) * | 2020-06-05 | 2021-11-16 | 珠海格力电器股份有限公司 | Smoke alarm and correction method thereof |
| CN112614293A (en) * | 2020-12-04 | 2021-04-06 | 广东电力通信科技有限公司 | Electric power Internet of things safety early warning method and system based on edge calculation |
| CN112820062A (en) * | 2021-01-19 | 2021-05-18 | 武汉拓宝科技股份有限公司 | Fire occurrence probability prediction method and system |
| CN112820062B (en) * | 2021-01-19 | 2022-05-03 | 武汉拓宝科技股份有限公司 | Fire occurrence probability prediction method and system |
| CN113484205A (en) * | 2021-06-22 | 2021-10-08 | 中国商用飞机有限责任公司 | Smoke detection system and aircraft with same |
| CN116106505A (en) * | 2023-04-13 | 2023-05-12 | 西南石油大学 | Concentration analysis system and analysis method for natural gas exploitation |
| CN116106505B (en) * | 2023-04-13 | 2023-06-09 | 西南石油大学 | Concentration analysis system and analysis method for natural gas exploitation |
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|---|---|
| CN104183080B (en) | 2016-08-24 |
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