CN107516397A - Optical detector of fire smoke - Google Patents
Optical detector of fire smoke Download PDFInfo
- Publication number
- CN107516397A CN107516397A CN201710901517.1A CN201710901517A CN107516397A CN 107516397 A CN107516397 A CN 107516397A CN 201710901517 A CN201710901517 A CN 201710901517A CN 107516397 A CN107516397 A CN 107516397A
- Authority
- CN
- China
- Prior art keywords
- pipe
- transmitting tube
- compensation
- light beam
- main control
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
Abstract
The present invention relates to fire detection technology field, there is provided a kind of optical detector of fire smoke, including housing, main control board, reception pipe, compensation pipe, at least one transmitting tube, barrier grid and diffuser.Detection window is offered on housing, diffuser is covered at detection window, main control board is stacked in housing and from top to bottom on diffuser with barrier grid, reception pipe, benefit pipe and transmitting tube may be contained within main control board, the accommodating cavity of accommodating transmitting tube is offered on barrier grid, the thang-kng passage of extraneous light is received for reception pipe and is connected for the compensation passage by the light conduction that compensation pipe is sent to reception pipe, compensation passage with thang-kng passage.So, in whole detection process, transmitting tube, reception pipe and compensation pipe can avoid the interference and influence of extraneous smog, therefore, it without taking optical detector of fire smoke apart carry out cleaning, need to only ensure the translucency of diffuser, reduce regular maintenance expense.
Description
Technical field
The present invention relates to fire detection technology field, especially provides a kind of optical detector of fire smoke.
Background technology
Traditional optical detector of fire smoke is manufactured based on infrared light scattering principle.When the infrared light that detector is sent
When signal runs into smoke particle, it may occur that the scattering of infrared light, the light of scattering are received by the receiver, with smokescope not
Together, the reception electric current of receiver is also different, and the change of such smokescope has been converted into receiving the change of electric current, reception
Current signal digitized smokescope data after signal amplification and digital-to-analogue conversion conditioning, pass through microcontroller can logarithm
According to analysis calculating is carried out, smoke condition is judged, reach the purpose of detection smog.And contain infrared light composition in ambient light, can be right
The analysis of the infrared signal of optical detector of fire smoke itself judges to produce severe jamming, make detector can not normal work, so
Based on this principle, manufactured optical detector of fire smoke needs optical dark room and set come isolation environment light, optical dark room mostly
The quality of meter directly determines the quality of optical detector of fire smoke performance.
The optical dark room of optical detector of fire smoke is not closing, and it is to be based on optics geometry and air channel fluid mechanics principle
And the cavity with special construction being designed to, it can be easy to allow while ambient direct projection is blocked tested smog with
Air-flow enters its inside.After longtime running, it will be covered with dust all over inside the optical dark room, although being currently based on this principle
And manufactured optical detector of fire smoke is all designed with dust backoff algorithm, but compensation ability be it is limited, over time,
The sensitivity of sensor will be more and more sensitiveer, so as to easily lead to report by mistake.On the other hand, the cleaning of optical dark room is usual
Need by manually carrying out disassembly, cleaning, so maintenance cost is also very high.
The content of the invention
It is an object of the invention to provide a kind of optical detector of fire smoke, it is intended to solves existing optical detector of fire smoke because adopting
It need to increase the technical problem of regular maintenance cost with optical dark room structure.
To achieve the above object, the technical solution adopted by the present invention is：A kind of optical detector of fire smoke, including housing, master
Circuit board, reception pipe, compensation pipe, at least one transmitting tube, barrier grid and diffuser are controlled, detecting window is offered on the housing
Mouthful, the diffuser is covered at the detection window, the main control board with the barrier grid in the housing and
It is stacked from top to bottom on the diffuser, the reception pipe, the compensation pipe and the transmitting tube may be contained within institute
State on main control board, offer the accommodating cavity of the accommodating transmitting tube on the barrier grid, receive outside for the reception pipe
The thang-kng passage of light and for by the light conduction that sends of compensation pipe to the compensation passage of the reception pipe, the benefit
Repay passage with the thang-kng passage to be connected, the transmitting tube sends the first light beam, and the reception pipe is in the upper half light-receiving cycle
First light beam is inside received, and the reception signal of first light beam is fed back into the main control board and is recorded as light
According to intensity A, the compensation pipe sends the second light beam, and the reception pipe receives second light within the lower half light-receiving cycle
Beam, and the reception signal of second light beam is fed back into the main control board and is recorded as intensity of illumination B, the master control electricity
Road plate compares the difference of the intensity of illumination A and intensity of illumination B in the light-receiving cycle to judge to whether there is cigarette in environment
Mist.
Specifically, the transmitting tube is infrared transmitting tube, and the light beam wavelength scope that the infrared transmitting tube is sent is 850nm
~940nm.
Specifically, the compensation pipe is infrared compensation pipe, and the light beam wavelength scope that the infrared compensation pipe is sent is 850nm
~940nm.
Specifically, the reception pipe is infrared receiving tube, and the light beam wavelength scope that the infrared receiving tube receives is 850nm
~940nm.
Specifically, the diffuser includes transparent body and annular nib, and the annular nib is by the transparent body
Sidewall horizontal protrude outward to be formed, the transparent body is placed in the detection window, and the annular nib is resisted against described
The outer rim of detection window.
Preferably, the diffuser is acrylic diffuser.
Specifically, the beam emissions mouth of the transmitting tube is set with the beam reception mouth of the reception pipe in angle.
Preferably, the quantity of the transmitting tube is three, and each transmitting tube is enclosed centered on the reception pipe located at institute
State the periphery of reception pipe.
Specifically, the main control board has the first mounting surface and the relative with first mounting surface second installation
Face, the transmitting tube offer first through hole, the first through hole on first mounting surface on the main control board
It is connected with the thang-kng passage, the reception pipe is on second mounting surface and corresponding with the first through hole.
Specifically, the second through hole is opened up on the main control board, second through hole is connected with the compensation passage,
The compensation pipe is on second mounting surface and corresponding with second through hole.
Beneficial effects of the present invention：The optical detector of fire smoke of the present invention, transmitting tube is placed in accommodating cavity, meanwhile,
Barrier grid are stacked the opening closure of accommodating cavity with diffuser, and therefore, transmitting tube is in the environment of closing；Furthermore connect
Closed tube is placed in thang-kng passage, and the opening of thang-kng passage is blocked by diffuser, and therefore, reception pipe is also in the environment of closing；
Similarly, compensation passage is connected with thang-kng passage, and the opening of thang-kng passage is blocked by diffuser, that is, the opening for compensating passage is sealed
It is stifled, then, compensation pipe is also in enclosed environment.The course of work of optical detector of fire smoke is as follows：When transmitting tube sends first
During light beam, reception pipe receives the first light beam within the upper half light-receiving cycle, and the reception signal of the first light beam is fed back to
Main control board is recorded as intensity of illumination A, and then, compensation pipe sends the second light beam, and reception pipe is inscribed in the lower half light-receiving cycle
The second light beam is received, and the reception signal of the second light beam is fed back into main control board and is recorded as intensity of illumination B, governor circuit
Plate then compares the intensity of illumination A of the first light beam in the light-receiving cycle and the intensity of illumination B of the second light beam difference to judge environment
In whether there is smog, when the difference between intensity of illumination A and intensity of illumination B is not zero, the control logic of main control board
Rapid control compensation pipe is launched the intensity of illumination B increases of the second light beam or reduced, make reception pipe receive intensity of illumination B constantly with
Change with intensity of illumination A, then governor circuit can be sentenced by reading the intensity of illumination B values that change with time of the second light beam
The change of disconnected smokescope.So, in whole detection process, transmitting tube, reception pipe and compensation pipe can avoid the external world
The interference and influence of smog, it is therefore not necessary to take optical detector of fire smoke apart carry out cleaning, only it need to ensure the saturating of diffuser
Photosensitiveness, reduce regular maintenance expense.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the structural representation of optical detector of fire smoke provided in an embodiment of the present invention；
Fig. 2 is the profile of optical detector of fire smoke provided in an embodiment of the present invention；
Fig. 3 is the main control board, barrier grid and diffuser of optical detector of fire smoke provided in an embodiment of the present invention
Profile；
Fig. 4 is the structural representation of the main control board of optical detector of fire smoke provided in an embodiment of the present invention.
Wherein, each reference in figure：
1-housing, 2-main control board, 31-reception pipe, 32-compensation pipe, 33-transmitting tube, 4-obstruct grid, 5-
Diffuser, 11-detection window, 41-accommodating cavity, 42-thang-kng passage, 43-compensation passage, 51-transparent body, 52-ring
The mounting surface of shape chimb, 1a-first, the mounting surfaces of 1b-second, 21-first through hole, the 22-the second through hole.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " length ", " width ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
It refer to Fig. 1 to Fig. 3, optical detector of fire smoke provided in an embodiment of the present invention, including housing 1, main control board
2nd, reception pipe 31, compensation pipe 32, at least one transmitting tube 33, barrier grid 4 and diffuser 5.Detection window is offered on housing 1
11, diffuser 5 is covered at detection window 11, and main control board 2 is interior located at housing 1 with barrier grid 4 and stacking from top to bottom is set
It is placed on diffuser 5, reception pipe 31, compensation pipe 32 and transmitting tube 33 may be contained within main control board 2, obstruct and opened on grid 4
Accommodating cavity 41 provided with accommodating transmitting tube 33, for reception pipe 31 receive extraneous light thang-kng passage 42 and for will compensation manage
32 light conductions sent compensate passage 43 and are connected with thang-kng passage 42 to the compensation passage 43 of reception pipe 31.Transmitting tube 33
The first light beam is sent, reception pipe 31 receives the first light beam within the upper half light-receiving cycle, and the reception of the first light beam is believed
Number feed back to main control board 2 and be recorded as intensity of illumination A, compensation pipe 32 sends the second light beam, and reception pipe 31 is in lower half light-receiving
The second light beam is received in cycle, and the reception signal of the second light beam is fed back into main control board 2 and is recorded as intensity of illumination
B, main control board 2 compare the value of intensity of illumination A and intensity of illumination B in the light-receiving cycle to judge to whether there is cigarette in environment
Mist.
Optical detector of fire smoke provided in an embodiment of the present invention, transmitting tube 33 is placed in accommodating cavity 41, meanwhile, barrier
Grid 4 are stacked the opening closure of accommodating cavity 41 with diffuser 5, and therefore, transmitting tube 33 is in the environment of closing；Furthermore
Reception pipe 31 is placed in thang-kng passage 42, and the opening of thang-kng passage 42 is blocked by diffuser 5, and therefore, reception pipe 31 is also at envelope
In the environment closed；Similarly, compensation passage 43 connects with thang-kng passage 42, and the opening of thang-kng passage 42 is blocked by diffuser 5, i.e.,
The opening of compensation passage 43 is blocked, then, compensation pipe 32 is also in enclosed environment.The course of work of optical detector of fire smoke
It is as follows：When transmitting tube 33 sends the first light beam, reception pipe 31 receives the first light beam within the upper half light-receiving cycle, and will
The reception signal of first light beam feeds back to main control board 2 and is recorded as intensity of illumination A, and then, compensation pipe 32 sends the second light beam,
Reception pipe 31 receives the second light beam within the lower half light-receiving cycle, and the reception signal of the second light beam is fed back into master control electricity
Road plate 2 is recorded as intensity of illumination B, and main control board 2 then compares the intensity of illumination A and the second light of the first light beam in the light-receiving cycle
The intensity of illumination B of beam difference is to judge to whether there is smog in environment.Difference between intensity of illumination A and intensity of illumination B
When being not zero, the control logic of main control board 2 controls rapidly compensation pipe 32 to launch the intensity of illumination B increases of the second light beam or subtract
It is small, reception pipe 31 is received intensity of illumination B and constantly follow intensity of illumination A and change, then governor circuit 2 is by reading second
The intensity of illumination B of the light beam values that change with time just can determine whether the change of smokescope.So, in whole detection process, hair
The interference and influence of extraneous smog can be avoided by penetrating pipe 33, reception pipe 31 and compensation pipe 32, it is therefore not necessary to by photoelectric smoke
Detector takes carry out cleaning apart, need to only ensure the translucency of diffuser 5, reduces regular maintenance expense.
It should be noted that upper half light-receiving cycle and lower half light-receiving cycle are short enough, that is, reception pipe 31 is avoided to connect
Receive after the first light beam with being disturbed in the time interval before the second light beam is received by ambient.
In the present embodiment, transmitting tube 33 and compensation pipe 32 are to send light beam in real time, and similarly, reception pipe 31 is also real
When receive light beam, i.e. main control board 2 is comparing the difference of intensity of illumination A and intensity of illumination B in the same light-receiving cycle in real time
Value, when even the difference of the two is continuously in values, then non smoke external environment occurs, and even the difference of the two is held
When outside continuous values, then there is smog appearance in environment, so, you can avoid intensity of illumination A and intensity of illumination B difference from going out
Existing great-jump-forward changes and false touch activating alarm.
In the present embodiment, transmitting tube 33 is infrared transmitting tube, and the light beam wavelength scope that infrared transmitting tube is sent is 850nm
~940nm.For example, the light beam wavelength scope that sends of infrared transmitting tube can be 850nm, 855nm, 860nm, 865nm, 870nm,
875nm、880nm、885nm、890nm、895nm、900nm、905nm、910nm、915nm、920nm、925nm、930nm、
935nm、940nm.Infrared transmitting tube 33 can send infrared ray, the wavelength of infrared ray between microwave and visible ray, energy compared with
Greatly, the scope that ripple penetrates is also larger, is easily caught by reception pipe 31.
In the present embodiment, compensate pipe 32 for it is red compensation manage, the light beam wavelength scope that infrared compensation pipe is sent be 850nm~
940nm.For example, the light beam wavelength scope that sends of infrared compensation pipe can be 850nm, 855nm, 860nm, 865nm, 870nm,
875nm、880nm、885nm、890nm、895nm、900nm、905nm、910nm、915nm、920nm、925nm、930nm、
935nm、940nm。
In the present embodiment, reception pipe 31 is infrared receiving tube, and the light beam wavelength scope that infrared receiving tube receives is 850nm
~940nm.For example, the light beam wavelength scope that sends of infrared receiving tube can be 850nm, 855nm, 860nm, 865nm, 870nm,
875nm、880nm、885nm、890nm、895nm、900nm、905nm、910nm、915nm、920nm、925nm、930nm、
935nm、940nm。
Specifically, Fig. 2 and Fig. 3 are refer to, in the present embodiment, diffuser 5 includes transparent body 51 and annular nib
52, annular nib 52 is protruded outward by the sidewall horizontal of transparent body 51 and formed, and transparent body 51 is placed in detection window 11, ring
Shape chimb 52 is resisted against the outer rim of detection window 11.So, detection window 11 is blocked using diffuser 5, avoids external flue dust from entering
Enter to influence transmitting tube 33, reception pipe 31 and the working environment for compensating pipe 32 in housing 1.
Preferably, in the present embodiment, diffuser 5 is acrylic diffuser.Acrylic diffuser translucency is preferable, when
So, the diffuser of other materials is also selected according to the actual requirements.
In the present embodiment, the beam emissions mouth of transmitting tube 33 is set with the beam reception mouth of reception pipe 31 in angle.It is excellent
Selection of land, in order to improve the receiving efficiency that reception pipe 31 receives light beam, the beam emissions mouth of transmitting tube 33 and the light beam of reception pipe 31
Angular range between receiving port is 30 °~45 °.For example, the beam emissions mouth of transmitting tube 33 and the beam reception of reception pipe 31
Mouthful between angle can be 30 °, 31 °, 32 °, 33 °, 34 °, 35 °, 36 °, 37 °, 38 °, 39 °, 40 °, 41 °, 42 °, 43 °, 44 °,
45°。
Preferably, Fig. 4 is refer to, in the present embodiment, in order to improve the efficiency that reception pipe 31 catches light beam, adds hair
Penetrate the quantity of pipe 33.The quantity of transmitting tube 33 is three, and each transmitting tube 33 is enclosed centered on reception pipe 31 located at reception pipe 31
Periphery.
Preferably, Fig. 2 and Fig. 3 be refer to, in the present embodiment, main control board 2 have the first mounting surface 1a and with
The second relative first mounting surface 1a mounting surface 1b, transmitting tube 33 offer on the first mounting surface 1a on main control board 2
First through hole 21, first through hole 21 are connected with thang-kng passage 42, and reception pipe 31 is led on the second mounting surface 1b and with first
Hole 21 is corresponding.So, in the vertical direction, transmitting tube 33 are in different positions from reception pipe 31, avoid transmitting tube 33
Remaining light interference reception pipe 31 is sent, and then influences the illumination intensity value that reception pipe 31 receives the light beam of transmitting tube 33.
Preferably, Fig. 2 and Fig. 3 are refer to, in the present embodiment, the second through hole 22 is opened up on main control board 2, second is logical
Hole 22 is connected with compensation passage 43, and compensation pipe 32 is on the second mounting surface 1b and corresponding with the second through hole 22.So, mend
The light beam that pipe 32 is sent is repaid to be connect by reception pipe 31 by first through hole 21 again after conducting by the second through hole 22, compensated passage 43
Receive.
Or in the present embodiment, compensation pipe 32 is on the first mounting surface 1a and in compensation passage 43.So,
Light beam can be equally sent to reception pipe 31.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. optical detector of fire smoke, it is characterised in that：Including housing, main control board, reception pipe, compensation pipe, at least one Individual transmitting tube, grid and diffuser are obstructed, offer detection window on the housing, the diffuser is covered on the detecting window At mouthful, the main control board is stacked in the housing and from top to bottom in the diffuser with the barrier grid On, the reception pipe, the compensation pipe and the transmitting tube may be contained within the main control board, be opened on the barrier grid Provided with housing the accommodating cavity of the transmitting tube, the thang-kng passage of extraneous light received for the reception pipe and for by the benefit Repay light conduction that pipe sends to the compensation passage of the reception pipe, the compensation passage with the thang-kng passage to be connected, institute To state transmitting tube and send the first light beam, the reception pipe receives first light beam within the upper half light-receiving cycle, and by institute The reception signal for stating the first light beam feeds back to the main control board and is recorded as intensity of illumination A, and the compensation pipe sends the second light Beam, the reception pipe receives second light beam within the lower half light-receiving cycle, and the reception of second light beam is believed Number feed back to the main control board and be recorded as intensity of illumination B, the main control board compares the illumination in the light-receiving cycle Intensity A and the intensity of illumination B difference are to judge to whether there is smog in environment.
- 2. optical detector of fire smoke according to claim 1, it is characterised in that：The transmitting tube is infrared transmitting tube, institute It is 850nm~940nm to state the light beam wavelength scope that infrared transmitting tube is sent.
- 3. optical detector of fire smoke according to claim 1, it is characterised in that：The compensation pipe is infrared compensation pipe, institute It is 850nm~940nm to state the light beam wavelength scope that infrared compensation pipe is sent.
- 4. the optical detector of fire smoke according to Claims 2 or 3, it is characterised in that：The reception pipe is infrared receiving tube, The light beam wavelength scope that the infrared receiving tube receives is 850nm~940nm.
- 5. optical detector of fire smoke according to claim 1, it is characterised in that：The diffuser include transparent body and Annular nib, the annular nib are protruded outward by the sidewall horizontal of the transparent body and formed, and the transparent body is placed in institute State in detection window, the annular nib is resisted against the outer rim of the detection window.
- 6. optical detector of fire smoke according to claim 5, it is characterised in that：The diffuser is acrylic diffuser.
- 7. according to the optical detector of fire smoke described in any one of claims 1 to 3, it is characterised in that：The light beam of the transmitting tube Emission port and the beam reception mouth of the reception pipe are set in angle.
- 8. according to the optical detector of fire smoke described in any one of claims 1 to 3, it is characterised in that：The quantity of the transmitting tube For three, each transmitting tube is enclosed centered on the reception pipe located at the periphery of the reception pipe.
- 9. according to the optical detector of fire smoke described in any one of claims 1 to 3, it is characterised in that：The main control board tool There are the first mounting surface and second mounting surface relative with first mounting surface, the transmitting tube is located at first mounting surface On, first through hole is offered on the main control board, the first through hole is connected with the thang-kng passage, the reception pipe It is on second mounting surface and corresponding with the first through hole.
- 10. optical detector of fire smoke according to claim 9, it is characterised in that：Second is opened up on the main control board Through hole, second through hole are connected with the compensation passage, the compensation pipe on second mounting surface and with it is described Second through hole is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901517.1A CN107516397B (en) | 2017-09-28 | 2017-09-28 | Photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710901517.1A CN107516397B (en) | 2017-09-28 | 2017-09-28 | Photoelectric smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107516397A true CN107516397A (en) | 2017-12-26 |
| CN107516397B CN107516397B (en) | 2023-04-07 |
Family
ID=60726774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710901517.1A Active CN107516397B (en) | 2017-09-28 | 2017-09-28 | Photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107516397B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493560A (en) * | 2018-11-12 | 2019-03-19 | 中国兵器装备集团上海电控研究所 | Piggyback pod optical detector pollution detection optical path based on extreme ultraviolet light detector |
| CN109712367A (en) * | 2019-02-20 | 2019-05-03 | 北大青鸟环宇消防设备股份有限公司 | Smoke detector and smoke detection method |
| CN110261314A (en) * | 2019-06-20 | 2019-09-20 | 华帝股份有限公司 | Smoke detection device for range hood, range hood and smoke detection method of range hood |
| CN111311881A (en) * | 2020-02-28 | 2020-06-19 | 北京航星网讯技术股份有限公司 | Gas alarm device with function of reminding user of replacing dust cover |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882968A (en) * | 2003-11-17 | 2006-12-20 | 报知机股份有限公司 | Smoke sensor using scattering light |
| CN101236684A (en) * | 2008-03-06 | 2008-08-06 | 中国人民解放军第二炮兵装备研究院第三研究所 | Fire disaster detector and detection positioning method |
| CN201374114Y (en) * | 2009-04-03 | 2009-12-30 | 郑州净瓶高科有限公司 | Explosion-proof fire detecting device |
| CN101859469A (en) * | 2010-05-14 | 2010-10-13 | 公安部沈阳消防研究所 | Obscuration-forward scatter composite spot-type photoelectric smoke fire detector and detection method thereof |
| CN101866524A (en) * | 2010-05-28 | 2010-10-20 | 公安部沈阳消防研究所 | Linear infrared beam smoke fire detector and detection method thereof |
| CN201698557U (en) * | 2009-12-28 | 2011-01-05 | 公安部沈阳消防研究所 | Air pipe smog sensing fire detector |
| CN102129755A (en) * | 2011-01-06 | 2011-07-20 | 中国科学技术大学 | Photoelectric smoke detector based on forward scattering in small angle |
| CN102460527A (en) * | 2009-05-01 | 2012-05-16 | 爱克斯崔里斯科技有限公司 | Improvements to particle detectors |
| CN103218887A (en) * | 2013-04-01 | 2013-07-24 | 深圳市广安消防装饰工程有限公司 | Fire detector capable of flashing to alarm |
| CN103456120A (en) * | 2013-06-25 | 2013-12-18 | 刘星 | Double-gas-line type temperature sensing fire detector and detection method thereof |
| CN103733049A (en) * | 2011-08-15 | 2014-04-16 | 奥林巴斯株式会社 | Photometric analysis device using single light emitting particle detection, photometric analysis method and computer program for photometric analysis, |
| CN103854428A (en) * | 2012-11-29 | 2014-06-11 | 西安博康中瑞船舶设备有限公司 | Novel laser smoke alarm |
| CN104200606A (en) * | 2014-07-18 | 2014-12-10 | 中国科学技术大学 | Point-shaped light scattering type smoke detector without optical labyrinth, and signal processing method |
| CN104574776A (en) * | 2015-01-20 | 2015-04-29 | 西安博康电子有限公司 | Point type proactive smoke detecting detector |
| CN204390398U (en) * | 2014-10-14 | 2015-06-10 | 宁波尚泰电子有限公司 | Smoke alarm |
| KR20150102425A (en) * | 2014-02-28 | 2015-09-07 | 주식회사 에스엔케이테크놀러지스 | Apparatus for detecting smoke |
| CN105448028A (en) * | 2015-11-19 | 2016-03-30 | 电子科技大学中山学院 | Optical detection type smoke detector based on plastic optical fiber conduction |
| CN207281963U (en) * | 2017-09-28 | 2018-04-27 | 深圳市泰和安科技有限公司 | Optical detector of fire smoke |
-
2017
- 2017-09-28 CN CN201710901517.1A patent/CN107516397B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1882968A (en) * | 2003-11-17 | 2006-12-20 | 报知机股份有限公司 | Smoke sensor using scattering light |
| CN101236684A (en) * | 2008-03-06 | 2008-08-06 | 中国人民解放军第二炮兵装备研究院第三研究所 | Fire disaster detector and detection positioning method |
| CN201374114Y (en) * | 2009-04-03 | 2009-12-30 | 郑州净瓶高科有限公司 | Explosion-proof fire detecting device |
| CN102460527A (en) * | 2009-05-01 | 2012-05-16 | 爱克斯崔里斯科技有限公司 | Improvements to particle detectors |
| CN201698557U (en) * | 2009-12-28 | 2011-01-05 | 公安部沈阳消防研究所 | Air pipe smog sensing fire detector |
| CN101859469A (en) * | 2010-05-14 | 2010-10-13 | 公安部沈阳消防研究所 | Obscuration-forward scatter composite spot-type photoelectric smoke fire detector and detection method thereof |
| CN101866524A (en) * | 2010-05-28 | 2010-10-20 | 公安部沈阳消防研究所 | Linear infrared beam smoke fire detector and detection method thereof |
| CN102129755A (en) * | 2011-01-06 | 2011-07-20 | 中国科学技术大学 | Photoelectric smoke detector based on forward scattering in small angle |
| CN103733049A (en) * | 2011-08-15 | 2014-04-16 | 奥林巴斯株式会社 | Photometric analysis device using single light emitting particle detection, photometric analysis method and computer program for photometric analysis, |
| CN103854428A (en) * | 2012-11-29 | 2014-06-11 | 西安博康中瑞船舶设备有限公司 | Novel laser smoke alarm |
| CN103218887A (en) * | 2013-04-01 | 2013-07-24 | 深圳市广安消防装饰工程有限公司 | Fire detector capable of flashing to alarm |
| CN103456120A (en) * | 2013-06-25 | 2013-12-18 | 刘星 | Double-gas-line type temperature sensing fire detector and detection method thereof |
| KR20150102425A (en) * | 2014-02-28 | 2015-09-07 | 주식회사 에스엔케이테크놀러지스 | Apparatus for detecting smoke |
| CN104200606A (en) * | 2014-07-18 | 2014-12-10 | 中国科学技术大学 | Point-shaped light scattering type smoke detector without optical labyrinth, and signal processing method |
| CN204390398U (en) * | 2014-10-14 | 2015-06-10 | 宁波尚泰电子有限公司 | Smoke alarm |
| CN104574776A (en) * | 2015-01-20 | 2015-04-29 | 西安博康电子有限公司 | Point type proactive smoke detecting detector |
| CN105448028A (en) * | 2015-11-19 | 2016-03-30 | 电子科技大学中山学院 | Optical detection type smoke detector based on plastic optical fiber conduction |
| CN207281963U (en) * | 2017-09-28 | 2018-04-27 | 深圳市泰和安科技有限公司 | Optical detector of fire smoke |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493560A (en) * | 2018-11-12 | 2019-03-19 | 中国兵器装备集团上海电控研究所 | Piggyback pod optical detector pollution detection optical path based on extreme ultraviolet light detector |
| CN109493560B (en) * | 2018-11-12 | 2020-10-16 | 中国兵器装备集团上海电控研究所 | Power cabin optical detector pollution detection light path based on far ultraviolet detector |
| CN109712367A (en) * | 2019-02-20 | 2019-05-03 | 北大青鸟环宇消防设备股份有限公司 | Smoke detector and smoke detection method |
| CN110261314A (en) * | 2019-06-20 | 2019-09-20 | 华帝股份有限公司 | Smoke detection device for range hood, range hood and smoke detection method of range hood |
| CN111311881A (en) * | 2020-02-28 | 2020-06-19 | 北京航星网讯技术股份有限公司 | Gas alarm device with function of reminding user of replacing dust cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107516397B (en) | 2023-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107516397A (en) | Optical detector of fire smoke | |
| CN106056830B (en) | A kind of labyrinth of optical detector of fire smoke | |
| CN106152211A (en) | A kind of real-time oil smoke concentration monitoring system and application have the lampblack absorber of this system | |
| CN205029942U (en) | Classroom lighting system based on singlechip | |
| CN110009863A (en) | A kind of vertical double light path smoke detection labyrinth and its detection method | |
| CN105448028B (en) | Optical detection type smoke detector based on plastic optical fiber conduction | |
| CN207503407U (en) | Smoke Detection circuit and device | |
| EP3472813B1 (en) | Smoke detection method | |
| CN102608010B (en) | Particulate matter (PM) detecting method and equipment | |
| CN207281963U (en) | Optical detector of fire smoke | |
| CN211309681U (en) | Induction device capable of detecting overflow degree of dustbin and dustbin applying same | |
| CN108007832A (en) | A kind of range hood of the real-time detection part of oil smoke concentration and the application component | |
| CN207263577U (en) | A kind of range hood of the real-time detection part of oil smoke concentration and the application component | |
| CN203673614U (en) | Optical darkroom and smoke-temperature composite fire detector | |
| CN207751833U (en) | A kind of oil smoke sensor | |
| CN2852113Y (en) | Upright bidirectional scattering smoke sensing detector labyrinth | |
| CN208271350U (en) | Smoke alarm | |
| CN206300873U (en) | A kind of optics dust concentration detection means | |
| CN105240953A (en) | Air treatment device | |
| CN205119275U (en) | Air treatment equipment | |
| CN109427170A (en) | Smoke alarm | |
| CN209068582U (en) | A kind of infrared facility applied to kitchen ventilator sense cigarette | |
| CN210777058U (en) | Dual-wavelength dual-light-path smoke detection labyrinth | |
| CN209495967U (en) | A kind of visualization electrical fire multistage automatic alarm device | |
| CN209070683U (en) | A kind of spot-type photoelectric smoke detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 East and fourth floors, building A1, xinjianxing science and Technology Industrial Park, Fengxin Road, Loucun, Gongming street, Guangming District, Shenzhen City, Guangdong Province Applicant after: TANDA TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong province Shenzhen Guangming New District Gongming Street Village Feng Xin Lu Xinjian Xing Technology Industrial Park A1 Building 1 floor, 3 floor, 4 East Building, 5 floor Applicant before: TANDA TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |