CN207850951U - A kind of optics fire detector window pollution detection device - Google Patents
A kind of optics fire detector window pollution detection device Download PDFInfo
- Publication number
- CN207850951U CN207850951U CN201721482913.7U CN201721482913U CN207850951U CN 207850951 U CN207850951 U CN 207850951U CN 201721482913 U CN201721482913 U CN 201721482913U CN 207850951 U CN207850951 U CN 207850951U
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- Prior art keywords
- window
- tube
- pollution
- reflecting plate
- fire detector
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- Expired - Fee Related
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- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a kind of optics fire detector window pollution detection device, its structure is to be provided with pollution indicator light on pcb board in detection window shell, receive photosensitive tube and reflection source transmitting tube, reflecting plate is installed in front of hull outside window glass side, wherein reflecting plate face reflection source transmitting tube, it is provided with concave Iy curved on the reflecting plate, for giving the tube-launched signal reflex of reflection source to reception photosensitive tube.The utility model provides corresponding pollution alarm signal by the detection to optics fire detector window pollution, and the window that can accurately grasp optics fire detector in real time is got dirty situation, to improve system functional reliability.
Description
Technical field
The utility model is related to field of fire fighting equipment more particularly to detection field, in particular to a kind of optics fire
Detector window pollution detection device.
Background technology
Optics fire detector is the important component of self-extinguishing explosion suppression system, because its have be exceedingly fast it is corresponding when
Between, it has been widely used in the fields such as military armor vehicle, fuel store, gunpowder production line, ammunition depot.By the hair of decades
Exhibition, multiple types have had been developed in optics fire detector at present, include outside single ultraviolet, how ultraviolet, Shan Hong, is how infrared, purple
The flame detector of infrared, single ultraviolet types such as how infrared, and be obtained in different fields should have extensively respectively.
Optics fire detector used at present, one problem of generally existing, i.e. detection window are contaminated, can influence light
Visual field is learned, the accuracy of fire is detected so as to cause detector, the case where failing to report police or even direct failure occurs to fire；It is special
It is not to be easier that the window of optics fire detector is caused to be contaminated in the case of installation environment is more severe, such as coal mine
Under, dust atmosphere etc..
Utility model content
Technical problem to be solved in the utility model is：Current various types of optics fire detectors are jointly existing
Window pollution problem will directly affect the normal work of entire fire extinguishing and explosion restraining system, very once the window of detector is contaminated
It may lead to irremediable serious consequence, cause great economy and life and property loss.
In order to solve the above technical problems, technical solution provided by the utility model is：A kind of optics detection is provided
Device window pollution detection device, structure are to be provided with pollution indicator light on pcb board in detection window shell, receive photosensitive tube
And reflection source transmitting tube, reflecting plate are installed in front of hull outside window glass side, wherein reflecting plate face reflection source is sent out
Pipe is penetrated, concave Iy curved is provided on the reflecting plate, for the tube-launched signal reflex of reflection source is photosensitive to receiving
Pipe；The circuit structure of the pollution detection device is to be separately connected two driving circuits based on CPU interface circuits, one
Signal conditioning circuit and a serial communication circuit；One of driving circuit is connect with transmitting tube, another driving circuit with
Pollution indicator light is attached；Signal conditioning circuit is connect with reception pipe, and window telecommunication circuit is attached with host computer.
The reflecting surface of the reflecting plate should be inner concave type curve,
Light source transmitting tube is mounted on photosensitive tube is received in shell on pcb board, and reflecting plate is installed on hull outside window
In front of glass side, processor can control at interval of a period of time and carry out primary pollution detection, and specific steps and process are as follows：
a）Processor control light source transmitting tube lights 0.2s~1s；
b）Light source is irradiated on reflecting plate curved-surface reflection side and is reflected through window glass, converged；
c）Reflection source is again passed through window glass and is incident on reception photosensitive tube photosurface；
d）It receives photosensitive tube and signal conditioning circuit converts the luminous intensity received to level signal；
e）Processor acquires level signal, and the light for receiving photosensitive tube and receiving is extrapolated by the size of level signal
Intensity, and then calculate the light transmittance of window glass.
When judging that window glass is contaminated, pollution indicator light is lighted in processor control, while through serial communication circuit
Polluted information is reported into host computer.
Due to through transmit twice and primary event after luminous intensity it is more faint, receive photosensitive tube to make to be incident on
Luminous intensity maximizes, and improves signal-to-noise ratio, and the reflecting surface of reflecting plate should be inner concave type curve, have reached the work for converging reflected light
With.When window glass is contaminated, light transmittance reduces, so this programme judges according to the size of window glass light transmittance
The situation of getting dirty of window glass.Relative to penetrating transmission principle, the principle of reflection that this programme uses is more conducive to ensure optics fire
The leakproofness of fire detector shell.When judging that window glass is contaminated, pollution indicator light is lighted in processor control, is passed through simultaneously
Polluted information is reported host computer by serial communication circuit.
Due to through transmit twice and primary event after luminous intensity it is more faint, receive photosensitive tube to make to be incident on
Luminous intensity maximizes, and improves signal-to-noise ratio, and the reflecting surface of reflecting plate should be inner concave type curve, have reached the work for converging reflected light
With.
The utility model has the beneficial effects that：By the detection to optics fire detector window pollution, and provide corresponding
Pollution alarm signal, the window that can accurately grasp optics fire detector in real time is got dirty situation, to improve system work
Make reliability.Controller can be accurately positioned the detector that window is got dirty according to pollution alarm signal, then can be individually to getting dirty
The detector window of dye is cleaned, and the inspection of artificial situation of periodically frequently getting dirty to each detector window in system is avoided
It looks into, saves maintenance cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the high-level schematic functional block diagram of the utility model；
Fig. 3 is the reflecting plate schematic diagram of the utility model；
Wherein：1：Detection window, 2：Pollution indicator light, 3：Reception photosensitive tube, 4：Reflection source transmitting tube, 5：Reflecting plate.
Specific implementation mode
As shown in Figure 1, the utility model provides a kind of optics fire detector window pollution detection device, structure be
Pollution indicator light 2 is provided in 1 shell of detection window on pcb board, receives photosensitive tube 3 and reflection source transmitting tube 4, reflecting plate 5
It is installed in front of hull outside window glass side, wherein 5 face reflection source transmitting tube 4 of reflecting plate, is arranged on the reflecting plate 5
There is concave Iy curved, reception photosensitive tube 3, reflection board structure such as Fig. 3 institutes are given in the signal reflex for emitting reflection source transmitting tube 4
Show；As shown in Fig. 2, the circuit structure of pollution detection device is based on CPU interface circuits, it is separately connected two driving electricity
Road, a signal conditioning circuit and a serial communication circuit；One of driving circuit is connect with transmitting tube, another driving
Circuit is attached with pollution indicator light；Signal conditioning circuit is connect with reception pipe, and window telecommunication circuit is connected with host computer
It connects.
Optical texture is the core of the utility model, thus reflection source transmitting tube 4, reflecting plate 5 and receive photosensitive tube 3 it
Between installation site it is particularly important, if installation site is improper, will result directly in receive photosensitive tube 3 do not receive reflected light
Source.Reflection source transmitting tube 4, reflecting plate 5 and receive the installation site of photosensitive tube 3 should be according to the size of actual detection window, anti-
The gradient for 5 reflecting surface of difference in height and reflecting plate penetrated between plate 5 and reception photosensitive tube 3 makes the appropriate adjustments, it is therefore an objective to make anti-
Penetrate light source that light source transmitting tube 4 is sent out after the reflecting curved surface reflecting focal of reflecting plate 5 can more as possible being incident on receive it is photosensitive
In pipe 5.
Two light transmittance threshold values can be setWith, when processor detects that light transmittance is less thanWhen, it is determined as window glass
Glass has been contaminated, and detector is in pollutional condition, should carry out cleaning treatment to window glass at this time.When processor detects
Light rate is higher thanWhen, it is determined as that window glass is not affected by pollution, detector is in clean conditions.
If infrared photodiode is used in detection, such as purple infrared optics fire detector, more infrared optics fire detectors
Deng, it is contemplated that it will be multiplexed for the infrared photodiode of detection and pollution detection.In addition, fire lamp also can be with window dirt
Indicator light multiplexing is contaminated, different alarm conditions is indicated with different dispaly states.Be conducive to reduce optics fire detector in this way
Size.
Claims (1)
1. a kind of optics fire detector window pollution detection device, it is characterised in that：Structure is the PCB in detection window shell
It is provided with pollution indicator light, reception photosensitive tube and reflection source transmitting tube, reflecting plate on plate and is installed on hull outside window glass
In front of side, wherein reflecting plate face reflection source transmitting tube, it is reflecting surface to be provided with inner concave type curve on the reflecting plate, is used for
Give the tube-launched signal reflex of reflection source to reception photosensitive tube；
The circuit structure of pollution detection device is to be separately connected two driving circuits, a letter based on CPU interface circuits
Number modulate circuit and a serial communication circuit；One of driving circuit is connect with transmitting tube, another driving circuit and dirt
Dye indicator light is attached；Signal conditioning circuit is connect with reception pipe, and window telecommunication circuit is attached with host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482913.7U CN207850951U (en) | 2017-11-09 | 2017-11-09 | A kind of optics fire detector window pollution detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721482913.7U CN207850951U (en) | 2017-11-09 | 2017-11-09 | A kind of optics fire detector window pollution detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207850951U true CN207850951U (en) | 2018-09-11 |
Family
ID=63422579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721482913.7U Expired - Fee Related CN207850951U (en) | 2017-11-09 | 2017-11-09 | A kind of optics fire detector window pollution detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207850951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941818A (en) * | 2017-11-09 | 2018-04-20 | 西安惠迪诺华电子科技股份有限公司 | A kind of optics fire detector window pollution detection device |
-
2017
- 2017-11-09 CN CN201721482913.7U patent/CN207850951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941818A (en) * | 2017-11-09 | 2018-04-20 | 西安惠迪诺华电子科技股份有限公司 | A kind of optics fire detector window pollution detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20201109 |