CN110443972A - Labyrinth structure of smoke alarm and labyrinth background value control method - Google Patents
Labyrinth structure of smoke alarm and labyrinth background value control method Download PDFInfo
- Publication number
- CN110443972A CN110443972A CN201910863709.7A CN201910863709A CN110443972A CN 110443972 A CN110443972 A CN 110443972A CN 201910863709 A CN201910863709 A CN 201910863709A CN 110443972 A CN110443972 A CN 110443972A
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- Prior art keywords
- labyrinth
- light
- transmitting tube
- background value
- reflecting segment
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- 239000000779 smoke Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 15
- 230000002708 enhancing effect Effects 0.000 claims description 14
- 230000001154 acute effect Effects 0.000 claims description 9
- 239000000428 dust Substances 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000272 proprioceptive effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a labyrinth structure of a smoke alarm, which comprises a labyrinth body, a transmitting pipe assembly and a receiving pipe; the light emitting direction of the emitting tube assembly faces the inner wall of the labyrinth body, and the receiving tube receives light reflected by the labyrinth body; with the inner wall transmission light of emission tube subassembly orientation maze body, the inner wall of the maze body that makes is as the main contribution area of background value for even there is the dust accumulation condition in the bottom surface of maze body under, also can not produce the wrong report phenomenon very fast, prolong its life.
Description
Technical field
The present invention relates to smoke alarm technical field, more specifically to a kind of smog alarm labyrinth structure and
Labyrinth background value control method.
Background technique
When labyrinth works, transmitting tube can issue light beam, and pipe reception is received after labyrinth is reflected.No smog into
When entering to labyrinth, the value that the optical signal that reception pipe receives obtains after photoelectric conversion, referred to as background value.There is smog entrance
To labyrinth and when smokescope reaches detector alarm threshold value, referred to as fire alarm value.The design principle in labyrinth is to allow enter labyrinth
Interior smog participates in optical scattering as much as possible, i.e. fire alarm value can obtain maximum contribution.Background value is controlled simultaneously to the greatest extent may be used
It can do small, such labyrinth just has sufficient interval range to go to judge whether there is fire.
Very widely used today labyrinth, as shown in Figure of description 1, the light that transmitting tube 10 projects is mapped to the flat of labyrinth 11
On face 12, light is received pipe 13 by the reflection of plane 12 in labyrinth and receives, and labyrinth plane 12 is the main contributions area of background value
Domain.But in actual use, labyrinth is to stand upside down to be mounted on the ceiling of building, such as dust large particle meeting nature is heavy
Drop is accumulated in the lid plane of labyrinth.Due to having sharp-featured optical texture in the plane in labyrinth, dust is easily attached to
Face.Dust is cumulative as time goes by easily causes detector to be reported by mistake.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of smoke alarm
Labyrinth structure and labyrinth background value control method.
The technical solution adopted by the present invention to solve the technical problems is:
Construct a kind of smog alarm labyrinth structure, including labyrinth ontology, transmitting tube assembly and reception pipe；Wherein, described
Emit the light direction of the launch of tube assembly towards the inner wall of the labyrinth ontology, the reception pipe is received via the labyrinth ontology
Light after reflection.
Smog alarm labyrinth structure of the present invention, wherein the transmitting tube assembly is by the first single transmitting tube
It constitutes；The inner wall of the labyrinth ontology is provided with the second light of the first smooth reflecting segment for reducing light reflection or enhancing light reflection
Line reflection section；The light that first transmitting tube issues is towards the first light reflecting segment or the second light reflecting segment.
Smog alarm labyrinth structure of the present invention, wherein the first light reflecting segment is in longitudinal zigzag
Structure, and the wedge angle of sawtooth is acute angle.
Smog alarm labyrinth structure of the present invention, wherein the second light reflecting segment takes the form of inclined plane, and inclined-plane
Towards the reception pipe.
Smog alarm labyrinth structure of the present invention, wherein the transmitting tube assembly by wavelength it is different multiple the
Two transmitting tubes are constituted；The third light towards face that the inner wall of the labyrinth ontology is provided with each second transmitting tube is anti-
Penetrate section；Multiple third light reflecting segments are used to reduce light reflection or are used to the reflection of enhancing light or multiple institutes
It states in third light reflecting segment a part and reflects another part for enhancing light reflection for reducing light.
Smog alarm labyrinth structure of the present invention, wherein the third light for reducing light reflection is anti-
Section is penetrated in longitudinal zigzag structure, and the wedge angle of sawtooth is acute angle.
Smog alarm labyrinth structure of the present invention, wherein the third light for enhancing light reflection is anti-
It penetrates section to take the form of inclined plane or arc surfaced, and inclined-plane or cambered surface are towards the reception pipe.
A kind of labyrinth background value control method, according to above-mentioned smog alarm labyrinth structure, its implementation is as follows:
Step 1: setting angle for inner wall of the tube assembly towards labyrinth is emitted；
Step 2: obtaining the requirement background value of smoke alarm；
Step 3: calculating the real background value of smoke alarm and the difference of requirement background value；
If difference is positive, in labyrinth, the inner wall of ontology, which increases, reduces what light reflected towards face with transmitting tube assembly
Light reflecting segment, to reduce background value；
If difference is negative, in labyrinth, the inner wall of ontology, which increases, enhances what light reflected towards face with transmitting tube assembly
Light reflecting segment, to improve background value.
Background value control method in labyrinth of the present invention, wherein in the third step:
If the transmitting tube assembly is made of single transmitting tube, it is anti-that the difference according to background value is correspondingly arranged the light
Penetrate section；
If the transmitting tube assembly is made of the transmitting tube of multiple and different wavelength, according to each transmitting tube and the reception
The difference for the combined background value that pipe is constituted, is arranged in a one-to-one correspondence the light reflecting segment corresponding with the transmitting tube.
Background value control method in labyrinth of the present invention, wherein for reducing the light reflecting segment of light reflection
In longitudinal zigzag structure, and the wedge angle of sawtooth is acute angle；For enhancing the light reflecting segment of light reflection in inclined-plane
Shape or arc surfaced, and inclined-plane or cambered surface are towards the reception pipe.
The beneficial effects of the present invention are: interior wall emission light of the tube assembly towards labyrinth ontology, the labyrinth made will be emitted
Main contributions region of the inner wall of ontology as background value, so that even if having the case where dust accumulation in the bottom surface of labyrinth ontology
Under, wrong report phenomenon will not be generated soon, prolonged its service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below in conjunction with attached drawing and reality
Applying example, the invention will be further described, and the accompanying drawings in the following description is only section Example of the invention, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other accompanying drawings:
Fig. 1 is existing smog alarm labyrinth structural schematic diagram；
Fig. 2 is the smog alarm labyrinth structure structural schematic diagram of the embodiment of the present invention one；
Fig. 3 is the smog alarm labyrinth structure structural schematic diagram of the embodiment of the present invention two；
Fig. 4 is the labyrinth background value control method flow chart of present pre-ferred embodiments.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention
Technical solution in example carries out clear, complete description, it is clear that and described embodiment is section Example of the invention, and
It is not all of embodiment.Based on the embodiment of the present invention, those of ordinary skill in the art are not before making the creative labor
Every other embodiment obtained is put, protection scope of the present invention is belonged to.
Embodiment one
The smog alarm labyrinth structure of present pre-ferred embodiments, as shown in Fig. 2, including labyrinth ontology 2, transmitting tube group
Part 20 and reception pipe 21, emit tube assembly 20 the light direction of the launch towards labyrinth ontology 2 inner wall, reception pipe 21 receive via
Light after the proprioceptive reflex of labyrinth；Will emit interior wall emission light of the tube assembly 20 towards labyrinth ontology, the labyrinth ontology 2 made it is interior
Main contributions region of the wall as background value so that even if the bottom surface of labyrinth ontology 2 201 have dust accumulation in the case where,
Wrong report phenomenon will not be generated soon, prolonged its service life.
Preferably, transmitting tube assembly 20 is made of the first single transmitting tube 20；The inner wall of labyrinth ontology 2 has been provided with drop
First light reflecting segment 22 of low light reflection or the second light reflecting segment (not shown) of enhancing light reflection；First hair
Penetrate light direction the first light reflecting segment 22 or the second light reflecting segment (not shown) of the sending of pipe 20；
By the first light reflecting segment 22, reflection repeatedly is carried out to the light that the first transmitting tube 20 issues and is consumed, can be dropped
The low light intensity for being received pipe 21 and receiving, and then reduce background value；
And passing through the light of the second light reflecting segment reflection, fiber-loss is small, compared to existing smoke alarm
For the light of reflective surface, it can enhance and be received the light intensity that pipe 21 receives, and then improve background value；
Two ways needs the needs according to reality to background value, is configured.
Preferably, the first light reflecting segment 22 is in longitudinal zigzag structure, and the wedge angle of sawtooth is acute angle；So that injecting
Light reflected repeatedly in sawtooth, with reduce project light intensity；
Certainly can also be arranged to other it is existing loss light planform, as undaform, fold, it is multiple side by side
S type etc..
Preferably, the second light reflecting segment takes the form of inclined plane, and inclined-plane is towards reception pipe 21；Also the oblique of multistage can be set into
The reflective shape in face, inclined cambered surface etc., fiber-loss is small, and then compared to the reflective surface of existing smoke alarm
For light, intensity of reflected light can be enhanced.
Embodiment two
The present embodiment and a upper embodiment are essentially identical, and something in common repeats no more, as shown in figure 3, the difference is that:
Transmitting tube assembly is made of different multiple second transmitting tubes 23 of wavelength；The inner wall of labyrinth ontology 2 is provided with every one second transmitting
The third light reflecting segment towards face of pipe 23；Multiple third light reflecting segments are used to reduce light reflection or are used to increase
A part reflects another part for enhancing light for reducing light in strong light reflection or multiple third light reflecting segments
Reflection；201 dust accretions of bottom surface for reducing labyrinth ontology 2 influence wrong report, extend the service life, meanwhile, the second hair of a wavelength
It penetrates pipe 23 and reception pipe 21 constitutes a detection group, the labyrinth of double light path or even multi-pass, corresponding each inspection can be formed
Survey group has a corresponding background value, and the inner wall for changing the labyrinth ontology of the second transmitting tube direction is weakened to light, still avoids pair
Light weakens, so that it may change the background value of corresponding detection group.
Preferably, for reducing the third light reflecting segment 24 of light reflection in longitudinal zigzag structure, and sawtooth
Wedge angle is acute angle；So that the light injected reflects repeatedly in sawtooth, to reduce the light intensity projected；
Certainly can also be arranged to other it is existing loss light planform, as undaform, fold, it is multiple side by side
S type etc..
Preferably, it takes the form of inclined plane or arc surfaced for enhancing the third light reflecting segment 25 of light reflection, and inclined-plane or arc
Facing towards reception pipe；Also the inclined-plane of multistage, inclined cambered surface etc. reflective shape can be set into；Fiber-loss is small, Jin Erxiang
Than intensity of reflected light can be enhanced for the light of the reflective surface of existing smoke alarm.
Embodiment three
A kind of labyrinth background value control method, according to above-mentioned smog alarm labyrinth structure, as shown in figure 4, it is realized
Method is as follows:
S01: inner wall of the tube assembly towards labyrinth will be emitted, sets angle；
S02: the requirement background value of smoke alarm is obtained；
S03: the real background value of smoke alarm and the difference of requirement background value are calculated；
If difference is positive, in labyrinth, the inner wall of ontology, which increases, reduces what light reflected towards face with transmitting tube assembly
Light reflecting segment, to reduce background value；
If difference is negative, in labyrinth, the inner wall of ontology, which increases, enhances what light reflected towards face with transmitting tube assembly
Light reflecting segment, to improve background value.
Preferably, in S03:
As shown in Fig. 2, the difference according to background value is correspondingly arranged light if transmitting tube assembly is made of single transmitting tube
Reflecting segment；
As shown in figure 3, if transmitting tube assembly be made of the transmitting tube of multiple and different wavelength, according to each transmitting tube with connect
The difference for the combined background value that closed tube is constituted, is arranged in a one-to-one correspondence light reflecting segment corresponding with transmitting tube.
Preferably, for reducing the light reflecting segment of light reflection in longitudinal zigzag structure, and the wedge angle of sawtooth is
Acute angle；Light reflecting segment for enhancing light reflection takes the form of inclined plane or arc surfaced, and inclined-plane or cambered surface are towards the reception pipe.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (10)
1. a kind of smog alarm labyrinth structure, including labyrinth ontology, transmitting tube assembly and reception pipe；It is characterized in that, described
Emit the light direction of the launch of tube assembly towards the inner wall of the labyrinth ontology, the reception pipe is received via the labyrinth ontology
Light after reflection.
2. smog alarm labyrinth structure according to claim 1, which is characterized in that the transmitting tube assembly is by single
First transmitting tube is constituted；The inner wall of the labyrinth ontology is provided with the first smooth reflecting segment for reducing light reflection or enhancing light is anti-
The the second light reflecting segment penetrated；The light that first transmitting tube issues is anti-towards the first light reflecting segment or the second light
Penetrate section.
3. smog alarm labyrinth structure according to claim 2, which is characterized in that the first light reflecting segment is in vertical
To zigzag structure, and the wedge angle of sawtooth be acute angle.
4. smog alarm labyrinth structure according to claim 2, which is characterized in that the second light reflecting segment is in oblique
Planar, and inclined-plane is towards the reception pipe.
5. smog alarm labyrinth structure according to claim 1, which is characterized in that the transmitting tube assembly by wavelength not
Same multiple second transmitting tubes are constituted；The inner wall of the labyrinth ontology be provided with each second transmitting tube towards face
Third light reflecting segment；Multiple third light reflecting segments are used to reduce light reflection or are used to enhancing light reflection,
Or in multiple third light reflecting segments a part for reducing light reflect another part for enhance light reflection.
6. smog alarm labyrinth structure according to claim 5, which is characterized in that for reducing described in light reflection
Third light reflecting segment is in longitudinal zigzag structure, and the wedge angle of sawtooth is acute angle.
7. smog alarm labyrinth structure according to claim 5, which is characterized in that for enhancing described in light reflection
Third light reflecting segment takes the form of inclined plane or arc surfaced, and inclined-plane or cambered surface are towards the reception pipe.
8. a kind of labyrinth background value control method, smog alarm labyrinth structure according to claim 1, feature exist
In implementation method is as follows:
Step 1: setting angle for inner wall of the tube assembly towards labyrinth is emitted；
Step 2: obtaining the requirement background value of smoke alarm；
Step 3: calculating the real background value of smoke alarm and the difference of requirement background value；
If difference is positive, in labyrinth, the inner wall of ontology increases the light for reducing light reflection with transmitting tube assembly towards face
Reflecting segment, to reduce background value；
If difference is negative, in labyrinth, the inner wall of ontology increases the light reflected with the enhancing light of transmitting tube assembly towards face
Reflecting segment, to improve background value.
9. background value control method in labyrinth according to claim 8, which is characterized in that in the third step:
If the transmitting tube assembly is made of single transmitting tube, the difference according to background value is correspondingly arranged the light reflection
Section；
If the transmitting tube assembly is made of the transmitting tube of multiple and different wavelength, according to each transmitting tube and the reception pipe structure
At combined background value difference, be arranged in a one-to-one correspondence the light reflecting segment corresponding with the transmitting tube.
10. labyrinth background value control method according to claim 8 or claim 9, which is characterized in that for reducing light reflection
The light reflecting segment is in longitudinal zigzag structure, and the wedge angle of sawtooth is acute angle；For enhancing the light of light reflection
Line reflection section takes the form of inclined plane or arc surfaced, and inclined-plane or cambered surface are towards the reception pipe.
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| CN201910863709.7A CN110443972B (en) | 2019-09-12 | 2019-09-12 | Maze background value control method |
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| CN201910863709.7A CN110443972B (en) | 2019-09-12 | 2019-09-12 | Maze background value control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114550405A (en) * | 2020-11-24 | 2022-05-27 | 原相科技股份有限公司 | Smoke detector |
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| CN110443972B (en) | 2024-02-06 |
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