CN101789164A - Manual fire alarm device - Google Patents
Manual fire alarm device Download PDFInfo
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- CN101789164A CN101789164A CN200910056855A CN200910056855A CN101789164A CN 101789164 A CN101789164 A CN 101789164A CN 200910056855 A CN200910056855 A CN 200910056855A CN 200910056855 A CN200910056855 A CN 200910056855A CN 101789164 A CN101789164 A CN 101789164A
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Abstract
The invention discloses a manual fire alarm device, which comprises a button arranged on a shell, a structure capable of maintaining an unchanged button state from a changed button state to a to-be-reset button state, an optical fiber for signal transmission, an induction structure which is connected with a fiber bragg grating and can induce the change of the button state, the fiber bragg grating arranged on the optical fiber, a fiber bragg grating signal processor and an alarm confirming lamp; after the button state is changed, the central wavelength of a reflected light signal of the fiber bragg grating is changed; the fiber bragg grating signal processor judges the variable quantity of the wavelength of the fiber bragg grating, and when the variable quantity of the wavelength exceeds a preset wavelength change threshold value, the fiber bragg grating signal processor judges that the button state is changed and generates an alarm; and when the alarm confirming lamp is lightened, an alarm signal is confirmed. In the manual fire alarm device, the fiber bragg grating is adopted as a sensing element, the signal transmission is carried out by adopting the optical fiber, and the signal transmission quality and capacity of resisting interference and severe environment are improved greatly.
Description
Technical field
The present invention relates to the fire alarm installation in Fibre Optical Sensor and warning field, relate in particular to a kind of manual fire alarm system.
Background technology
Up to now, the signal of manual fire alarm system and power supply are all finished by cable, generally when distance when 1.5km-3km is above, quality of signals can obviously descend, this moment, signal must carry out the relaying amplification.When the transmission of signal demand through longer distance, its signal quality will descend greatly.In addition because the signal of the manual fire alarm system in the prior art and power supply all finish by cable, so the interference performance of its anti lightning etc. also a little less than, adverse environment resistant (as abilities such as humidity, pollutions) is also relatively poor simultaneously.
Summary of the invention
Technical matters to be solved by this invention provides a kind of manual fire alarm system, increases the alerting signal transmission quality, and improves the ability of the anti-interference and adverse environment resistant of signal.
For solving the problems of the technologies described above, the technical scheme of manual fire alarm system of the present invention is to comprise
Be arranged on the button on the shell, also comprise making button state constant structure of hold button state before being changed the back and being reset to button state;
The optical fiber of transmission signals;
Be connected with fiber grating and can change the induction structure that make induction button state;
Be arranged on the fiber grating on the optical fiber, after button state changed, the reflected light signal centre wavelength of fiber grating changed;
The fiber grating signal processor, survey button in a state of nature the time optical fiber optical grating reflection light signal centre wavelength and button state change back fiber grating reflected light signal centre wavelength, judge the amount of wavelength variations, when wavelength variable quantity surpasses predefined wavelength variations threshold value, judge that then button state changes, report to the police;
The warning alarm lamp determines that when the warning alarm lamp is lighted alerting signal is identified.
Manual warning device of the present invention and method employing fiber grating are as sensing element and adopt optical fiber to carry out the signal transmission, its signal transmission quality and anti-interference and adverse environment resistant ability improve greatly, be particularly useful for growing the application of distance and rugged surroundings situation, as growing apart from tunnel, petrochemical industry plant area, waiting under water.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and Examples:
Fig. 1 Fig. 2 is a structural representation of the present invention;
Fig. 3 passes through optical fiber cascade synoptic diagram for the warning alarm lamp;
Fig. 4 passes through power supply cascade synoptic diagram for the warning alarm lamp;
Fig. 5 is the embodiment of the invention one synoptic diagram;
Fig. 6 is the vertical view of Fig. 5 middle part sub-unit;
Fig. 7 is the embodiment of the invention two synoptic diagram;
Fig. 8 is the embodiment of the invention three synoptic diagram;
Fig. 9 is the embodiment of the invention four synoptic diagram.
Among the figure in the Reference numeral; 1 is shell, and 2 is fiber grating, and 3 is induction structure; 4 is the optical fiber of transmission signals; 5 are warning alarm lamp, 5-1; 5-2; 5-3 is the assembly of optical fiber connector and lenslet or cover glass formation, and 5c1 5c2 5c3 is an optical fiber splitter; * be tie point; 5-d1; 5-d2; 5-d3 is the light source and the driven unit thereof of LED or other power supply light emitting, and 5e is total supply lines, 5e1; 5e2; 5e3 is cable branch joint or circuit board solder joint; 6 is power lead; 7 for having the button that recovers spring, and 8 for recovering spring, 9; 11 is magnet; 10 is screw rod; 12 is the distance adjustment piece, and 13 is nut, and 14 is shunt.
Embodiment
As shown in Figure 1, 2, the principle of work of the manual warning device of the present invention is as follows: the fiber grating signal processor reaches fiber grating 2 with wideband light source light wherein by the optical fiber among Fig. 14, when the state of button does not change, fiber grating 2 is with the light reflected back optical fiber grating signal processor of its wavelength, after button state changes, because induction structure 3 has been responded to the change of button state, be encapsulated in its fiber grating outside or inner and that induction structure is connected thereby have influence on, and then make the reflecting light long hair of fiber grating 2 give birth to change.The fiber grating signal processor passes through the wavelength after detection optical fiber grating 2 virgin state reflected light wavelength and the state variation thereof, and and predefined wavelength variable quantity threshold value compare, in general predefined wavelength variable quantity threshold value is at least 1pm, when wavelength variable quantity surpasses this threshold value, judge that then button state changes, report to the police.Can light warning alarm lamp 5 this moment simultaneously.
As shown in Figure 1,1 is the shell of manual warning device, is provided with button (not having the Show Button among the figure) on shell, also comprises making button state constant structure of hold button state before being changed the back and being reset to button state.4 is the optical fiber of transmission signals.Be provided with fiber grating 2 on optical fiber 4, fiber grating 2 is connected with induction structure 3, and induction structure 3 can be made induction to button state is changed.After button state changed, the reflected light signal centre wavelength of fiber grating 2 took place and will change.Fiber grating signal processor among Fig. 2 survey button in a state of nature the time optical fiber optical grating reflection light signal centre wavelength and button state change back fiber grating reflected light signal centre wavelength, judge the amount of wavelength variations, when wavelength variable quantity surpasses predefined wavelength variations threshold value, judge that then button state changes, report to the police.Also comprise the warning alarm lamp, determine that when the warning alarm lamp is lighted alerting signal is identified.Button and warning alarm lamp also can be compound one.
The warning alarm lamp can be connected with optical fiber, and the fiber grating signal processor sends transmission of visible light and delivers to the optical fiber connector at warning alarm lamp place and light the warning alarm lamp.Perhaps, also comprise the shielding plate that the optical fiber connector front that is arranged in the warning alarm lamp shelters from the light signal of optical fiber, this shielding plate is removed by linkage when taking place to report to the police, and lights the warning alarm lamp.The warning alarm lamp also can be the LED lamp, perhaps by the power drives luminous light source.
As shown in Figure 3, warning alarm lamp 5 pass through the optical fiber cascade, wherein 5-1,5-2,5-3 are the assembly that optical fiber connector and lenslet or cover glass constitute, 5c1 5c2 5c3 is an optical fiber splitter, * be tie point.
As shown in Figure 4, warning alarm lamp 5 is by the power lead cascade.Wherein 5-d1,5-d2,5-d3 are the light source and the driven unit thereof of LED or other power supply light emitting, and 5e is total supply lines, and 5e1,5e2,5e3 are cable branch joint or circuit board solder joint, * for connecting switch.
During the manual fire alarm system cascade, can be that each optic fiber grating wavelength is inequality, can also be that one section regional inner fiber grating wavelength is identical, and the regional optic fiber grating wavelength of different sections is inequality, can also be that whole optic fiber grating wavelengths are identical, thus form independently part is identical or complete with the manual fire alarm system of optical wavelength coding.
Shown in Fig. 5,6, in first embodiment of the invention, fiber grating 2 is glued on the unitary elasticity girder cantilever crossbeam 3 as induction structure, is fixed on the shell 1 as 3 on the unitary elasticity beam of induction structure, and 1 can be round, the side or other shapes.When having the button 7 that recovers spring 8 and press, semi-girder is bent downwardly the generation stretching strain, cause that optic fiber grating wavelength is elongated, the grating signal processor judges that by the measurement of optic fiber grating wavelength it changes above threshold value, can learn that 7 are in down state, the fiber-optic signal processor powers on for LED lamp 5 by power lead 6 immediately, make it luminous, the Show Button is pressed, and does not show among the locking mechanism figure that button is pressed.Fig. 6 is the vertical view of semi-girder 3 and fiber grating 2 and 4 building blocks of tail optical fiber.The @ place is button 7 roof pressure places among the figure.
As shown in Figure 7, similar with Fig. 5 in second embodiment of the invention, fiber grating 2 is glued on the combined elastic girder cantilever crossbeam 3, and 3 are fixed on the shell 1, and 1 can be round, the side or other shapes.When having the button 7 that recovers spring 8 and press, semi-girder is bent downwardly the generation stretching strain, cause that optic fiber grating wavelength is elongated, the grating signal processor is by the measurement of optic fiber grating wavelength, judge that it changes above threshold value, can learn that 7 are in down state, the fiber-optic signal processor powers on for LED lamp 5 by power lead 6 immediately, makes it luminous.
As shown in Figure 8, in third embodiment of the invention, in button 7 bottoms a magnet 9 is arranged, and another piece magnet 11 is housed on semi-girder 3, be fixed on the semi-girder 3 (or be fixed to semi-girder 3 with additive method) by screw rod 10 and nut 13, middle 12 is the distance adjustment piece, magnet 11 can directly be bonded on the semi-girder 3, perhaps be welded on the semi-girder 3 by stainless steel outer packed, the magnetic of magnet 9 and magnet 11 can be inhaled or repel each other mutually, thereby drive semi-girder 3 tension and compression, cause that fiber grating 2 wavelength are elongated.Shell 1 can be by being separated into two individual cavity between magnet 9 and the magnet 11 in addition, and 9 and 11 respectively put wherein respectively.As shell 1, warning alarm lamp 5, power lead 6, button 7, spring 8, magnet 9 are in the above in cavity, and screw rod 10, magnet 11, distance adjustment piece 12, nut 13, fiber grating 2, semi-girder 3, optical fiber 4 is at another cavity.This helps making corresponding waterproof sealing structure.Magnet in the present embodiment also can adopt other contactless assemblies to replace.
As shown in Figure 9, in fourth embodiment of the invention, fiber grating 2 is glued on the unitary elasticity girder cantilever crossbeam 3, and 3 are fixed on the shell 1, and 1 can be round, the side or other shapes.When having the button 7 that recovers spring 8 and press; semi-girder is bent downwardly the generation stretching strain; cause that optic fiber grating wavelength is elongated; the grating signal processor judges that by the measurement of optic fiber grating wavelength it changes above threshold value, can learn that 7 are in down state; warning alarm lamp 5 assembly for constituting by optical fiber connector and lenslet or cover glass; optical fiber 6 one ends are connected with shunt 14, an output terminal connected components 5 of shunt 14, the optical fiber 6 of another next warning device of output termination.
When utilizing the manual warning device of the present invention, its job step is generally as follows:
The first step, the fiber grating signal processor is transmitted through the fiber to fiber grating with light signal;
In second step, fiber grating is with the light signal reflected back optical fiber grating signal processor that receives, and when button state did not change, the reflection wavelength of fiber grating was constant, and when button state changed, the reflecting light long hair of fiber grating was given birth to and changed;
In the 3rd step, fiber grating signal processor detection optical fiber grating reflection optical wavelength is calculated this reflected light wavelength and light signal wavelength change amount, and this wavelength variable quantity and predefined wavelength variable quantity threshold value are compared;
The 4th step, judge according to the comparative result in the 3rd step whether button state changes, if the wavelength variable quantity of measuring is greater than predefined wavelength variable quantity threshold value, judge that then button state changes, report to the police, and light the warning alarm lamp simultaneously, if the wavelength variable quantity of measuring is less than predefined wavelength variable quantity threshold value, judge that then button state does not change, then do not report to the police.When taking place to report to the police, send the luminous warning alarm lamp of lighting of optical fiber connector that transmission of visible light is delivered to warning alarm lamp place by the fiber grating signal processor.
The manual warning device of the present invention comes the state variation of induction alarm button by fiber grating, thereby has increased the sensitivity level of reporting to the police, and has more increased the antijamming capability of signal by Optical Fiber Transmission information.The present invention not only can be applied to fire alarm, and is applicable to other any occasions that needs warning.
Claims (10)
1. a manual fire alarm system is characterized in that, comprising:
Be arranged on the button on the shell, also comprise making button state constant structure of hold button state before being changed the back and being reset to button state;
The optical fiber of transmission signals;
Be connected with fiber grating and can change the induction structure that make induction button state;
Be arranged on the fiber grating on the optical fiber, after button state changed, the reflected light signal centre wavelength of fiber grating changed;
The fiber grating signal processor, survey button in a state of nature the time optical fiber optical grating reflection light signal centre wavelength and button state change back fiber grating reflected light signal centre wavelength, judge the amount of wavelength variations, when wavelength variable quantity surpasses predefined wavelength variations threshold value, judge that then button state changes, report to the police;
The warning alarm lamp determines that when the warning alarm lamp is lighted alerting signal is identified.
2. manual fire alarm system according to claim 1 is characterized in that, predefined wavelength variations threshold value is 1pm at least.
3. manual fire alarm system according to claim 1 is characterized in that, described fiber grating be bragg grating or long period fiber grating.
4. manual fire alarm system according to claim 1, it is characterized in that, warning alarm lamp place is connected with optical fiber, when taking place to report to the police, the fiber grating signal processor sends the optical fiber connector that transmission of visible light is delivered to warning alarm lamp place, light the warning alarm lamp, button and warning alarm lamp are compound one, perhaps are what separate.
5. manual fire alarm system according to claim 4, it is characterized in that, also comprise the shielding plate that the optical fiber connector front that is arranged in the warning alarm lamp shelters from the light signal of optical fiber, this shielding plate is removed by linkage when taking place to report to the police, and lights the warning alarm lamp.
6. manual fire alarm system according to claim 1 is characterized in that, the warning alarm lamp is LED lamp or power drives luminous light source, when take place reporting to the police, connects the LED lamp or by the power drives luminous light source.
7. manual fire alarm system according to claim 1 is characterized in that, described induction mechanism is single elastic beam, and perhaps Zu He elastic beam perhaps can stretch-draw or the mechanism of compression.
8. manual warning device according to claim 7, it is characterized in that, described induction mechanism by direct pressure or draw or turn round or curved or realize deformation or displacement by magnetic force or hydraulic pressure or air pressure, thereby changes the wavelength of fiber grating after the induction button state changes.
9. manual warning device according to claim 8, it is characterized in that, when described induction mechanism is realized deformation or displacement by magnetic force, comprise that at least one pair of is used for the magnetic mechanism assembly that the perception button state changes, when button state changes, encapsulation thereon or fiber grating generation microstrain wherein causes optic fiber grating wavelength to change, and shell is by being separated into two individual cavity between the magnetic mechanism assembly.
10. manual fire alarm system according to claim 1, it is characterized in that, the fiber grating manual fire alarm system is by the cascade of optical signal transmission optical fiber, the optic fiber grating wavelength of the fiber grating manual fire alarm system of cascade is inequality, perhaps the part optic fiber grating wavelength is identical, perhaps all optic fiber grating wavelengths are identical, thereby form independently or the manual fire alarm system of the identical or all identical optical wavelength coding of part, and the warning alarm lamp is with optical fiber or cable cascade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910056855A CN101789164A (en) | 2009-01-22 | 2009-01-22 | Manual fire alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910056855A CN101789164A (en) | 2009-01-22 | 2009-01-22 | Manual fire alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN101789164A true CN101789164A (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910056855A Pending CN101789164A (en) | 2009-01-22 | 2009-01-22 | Manual fire alarm device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680161A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Fiber brag grating atmospheric pressure sensing system |
| CN102680162A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Atmospheric pressure meter based on fiber bragg grating |
| CN103218901A (en) * | 2013-04-01 | 2013-07-24 | 深圳市广安消防装饰工程有限公司 | Manual fire alarm button capable of flashing to alarm |
| CN105807281A (en) * | 2016-04-27 | 2016-07-27 | 武汉理工大学 | Stage suspender height monitoring system and monitoring method thereof |
| CN109147291A (en) * | 2018-08-30 | 2019-01-04 | 深圳晶点光科有限公司 | A kind of optical fiber manual fire alarm call point and its application method |
| CN109274364A (en) * | 2018-09-06 | 2019-01-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Pressing detection method, detection device and storage medium for magnetic control knob |
-
2009
- 2009-01-22 CN CN200910056855A patent/CN101789164A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680161A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Fiber brag grating atmospheric pressure sensing system |
| CN102680162A (en) * | 2012-06-07 | 2012-09-19 | 北京航空航天大学 | Atmospheric pressure meter based on fiber bragg grating |
| CN102680161B (en) * | 2012-06-07 | 2014-01-15 | 北京航空航天大学 | Fiber brag grating atmospheric pressure sensing system |
| CN102680162B (en) * | 2012-06-07 | 2014-09-03 | 北京航空航天大学 | Atmospheric pressure meter based on fiber bragg grating |
| CN103218901A (en) * | 2013-04-01 | 2013-07-24 | 深圳市广安消防装饰工程有限公司 | Manual fire alarm button capable of flashing to alarm |
| CN105807281A (en) * | 2016-04-27 | 2016-07-27 | 武汉理工大学 | Stage suspender height monitoring system and monitoring method thereof |
| CN109147291A (en) * | 2018-08-30 | 2019-01-04 | 深圳晶点光科有限公司 | A kind of optical fiber manual fire alarm call point and its application method |
| CN109147291B (en) * | 2018-08-30 | 2024-02-27 | 浙江东方职业技术学院 | Optical fiber manual fire alarm button and use method thereof |
| CN109274364A (en) * | 2018-09-06 | 2019-01-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Pressing detection method, detection device and storage medium for magnetic control knob |
| CN109274364B (en) * | 2018-09-06 | 2022-08-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Pressing detection method and device for magnetic control knob and storage medium |
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Application publication date: 20100728 |