CN205899745U - A general alarm module of portable digitization of ultraviolet for flame is surveyed - Google Patents
A general alarm module of portable digitization of ultraviolet for flame is surveyed Download PDFInfo
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- CN205899745U CN205899745U CN201620721604.XU CN201620721604U CN205899745U CN 205899745 U CN205899745 U CN 205899745U CN 201620721604 U CN201620721604 U CN 201620721604U CN 205899745 U CN205899745 U CN 205899745U
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- circuit board
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- power interface
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Abstract
The utility model discloses a general alarm module of portable digitization of ultraviolet for flame is surveyed, the system includes: the ultraviolet camera lens, lens cone, circuit board container, siC ultraviolet unit detector, detector setting up piece, light signal digital converter circuits, LED pilot lamp, digit power source. Provided is an advantage lies in: output signal full -digital, the interference killing feature is strong, reaches the fW magnitude to UVC wave band light -intensity signal's detection precision, the commonality is strong, and digital SPI interface does not have the requirement of driving frequency lower limit, adopting siC ultraviolet photovoltaic type detector, not needing the light filter, optical structure is simple, the appearance is small and exquisite light, and convenient change of each part is assembled, little consumption can be by battery powered, available LED is as the pilot lamp autonomous working, and also the control of the real -time intensity of a fire is done to the next machine of joinable, can be used for the calibration of other flame detectors as the standard.
Description
Technical field
This patent is related to a kind of flame detecting alarm, particularly to a kind of ultraviolet portable digital for flame detecting
Change Generic Alert module.
Technical background
In solar atmosphere day-old chick, be therefore otherwise known as the sensitive band of ultraviolet uvc detector day blind detector.
For natural flame detecting, temperature is relatively low, and fuel is Organic substance, generally utilizes the spectrum peak of Fire Radiation red
The spectral characteristic of exterior domain, is detected with Infrared Detectorss.But although passing when detecting to faint class black body radiation target (as flame)
The visible infrared band detector of system has higher photoelectric transformation efficiency to target, but result of detection is easily subject to daylight to do
Disturb, detect background and change with season, weather, detection time, geographical environment etc., for the small-signal in the range of environmental fluctuating not
Easily the response lag of selection target, limits the ability finding faint flame.
By research, in atmosphere, flame fringe can form low temperature plasma, causes the ionization of nitrogen, oxygen,
Its process can discharge the ultraviolet light higher than temperature radiation, can detect nature flame using ultraviolet non-solar-blind band in theory.And
And day blind detector can at utmost suppress background stray light, increase stability and the signal to noise ratio of detection device.
But the ultraviolet band intensity of flame is very weak, need the photoelectric transformation efficiency of detector very high, or rear class has very
Big amplification, could have enough certainties of measurement and signal screening ability to flame.For the former, industrial one kind adopts light
Electric multiplier tube, its resolution can reach photon level, but detector volume is big, power consumption is big；Another kind adopts switching diode, its spirit
Sensitivity is high, the flame ultraviolet detector series of products of small volume, such as shore pine, but just because of its switching characteristic, running voltage is high,
And function is only limited to find, and flame intensity can not be done with careful monitoring.For the latter, using uvc photovoltaic type ultraviolet detection
Device, by low noise circuit design, can adapt to the detection design requirement of low light intensity, and detector itself work do not need power supply,
The linearity is good, small volume, disclosure satisfy that the engineering demand of portable, long-time continuation of the journey.
In general, small-signal by external electromagnetic interference be limit detector sensitivity principal element it is therefore desirable to
The shielding of redundancy.So the little signal detection of high accuracy, distance, equipment volume is typically difficult to take into account simultaneously, this also limits
The reason made Portable ultraviolet detection precision.
And digitized ultraviolet flame detection device on the market, it is all data processing circuit to be placed in device as solely
Erection system uses, do so, even if control chip is in holding state and also is difficult to realize the requirement of Micro Energy Lose length continuation of the journey.Particularly
Ge great industrial circle enterprise tends to the control platform of modularity oneself in recent years, does not conveniently have the operator of technical background
To be applied in combination according to actual demand.In addition detection device of today typically also will not be only used as the presence of acquisition of information purpose, and
More it is that the linkage with other modules meets more complicated application, therefore low-power consumption, succinct modularized design more meets
Commercial Application demand.
The domestic related invention patent still not having UV detection module.The patent No. 201220426864.6, the patent No.
201320328585.0th, 201320566896.0 3 kinds of utility models of the patent No. each disclose a kind of detection dress of ultraviolet flame
Put it is achieved that low noise reads, but they are detector limited, light path design and voltage request are all higher, operation
Assembling is complicated, is unsuitable for portable use, and three kinds is all the design of autonomous system equipment it is impossible to meet versatility requirement.
Content of the invention
For improving the susceptiveness of ultraviolet flame detection device, the requirement of portability, versatility and long-distance transmission, this patent carries
Go out a kind of detector moduleization design, realize the portable digital Generic Alert module based on sic ultraviolet single-element detector.Should
Device is by sic ultraviolet single-element detector, ultraviolet lens, lens barrel and circuit board container, signal processing circuit board, led display lamp, number
Word power interface forms.Have that low in energy consumption, sensitivity is high, portable feature.
Device external form as shown in Figure 1, structure drawing of device as shown in Figure 2, device external form drawing such as accompanying drawing 3 institute
Show.Circuit printing plate designs as shown in Figure 4, is the system core of detecting module, for ultraviolet uvc optical signal is converted to number
Word signal and alarm signal.
A kind of ultraviolet portable digital Generic Alert module for flame detecting includes ultraviolet lens 1, lens barrel 2, electricity
Road plate container 3, sic ultraviolet single-element detector 4, setting-up piece 5, hardware circuit board 6, led display lamp 7, circuit board vessel bottom head
8, numeral-power interface 9, wherein:
Described ultraviolet lens 1 have anti-reflection film, have good light cut-off characteristicses to visible ray, and focal length is less than lens barrel 2 length,
Afterbody has outer installation screw thread；
Described lens barrel 2, material is aluminium alloy, cylindrical hole shape, and female thread is opened at two ends, in addition at the screw thread of two ends, its
Remaining part is divided and is all made insulation processing；
Described circuit board container 3, material is aluminium alloy, cylindrical hole shape, screw thread over one end, and the end face of whorl side is opened
Hole, both sides have semi arch installing hole empty, and in addition at the screw thread of two ends, remainder all makees insulation processing；
Described sic ultraviolet single-element detector 4 is ultraviolet sic unit photovoltaic detector, and sensitive band is uvc；
Described setting-up piece 5, material is polyimide resin, and installing hole is opened in pad both sides；
Described hardware circuit board 6, comprise linear power source circuit, current-to-voltage converting circuit, signal amplification circuit filter,
Bias voltage regulator circuit, differential comparison circuit, analog to digital conversion circuit and peripheral signal power interface, using high density fabric swatch,
Micro Energy Lose designs, and circuit board is circular, and diameter is less than 30mm；Described linear power source circuit adopts ti company Micro Energy Lose manostat core
Piece lp2950-n；Described current-to-voltage converting circuit, signal amplification circuit filter and bias voltage regulator circuit adopt ti public
Department cmos tetra- road Micro Energy Lose operational amplifier chip lmc6044；Described differential comparison circuit is recommended using microchip company
Output Micro Energy Lose chip mcp6541；Described analog to digital conversion circuit adopts ti company low-power consumption 8 Bits Serial ad chip tlc548；
Described led display lamp 7, is HONGGUANG led, its driving voltage 5v；
Described circuit board vessel bottom head 8, material aluminium alloy, circular, both sides are opened screw mounting hole, are opened led at partial center
7 holes of display lamp, 9 holes of numeral-power interface are opened in center；
Described numeral-power interface 9, is powered using battery or is powered using slave computer power interface.Power interface with
Grounded shield between digital interface；
Sic ultraviolet single-element detector 4, led display lamp 7, numeral-power interface 9 and the respective electric of hardware circuit board 6 connect
Mouth connects；Sic ultraviolet single-element detector 4 is installed on circuit board container 3 front by setting-up piece 5；Hardware circuit board 6 is installed on
Circuit board container 3 reverse side, its zero potential is connected with the zero potential of hardware circuit board 6.Led display lamp 7 is placed in circuit board container bottom
The eccentric in the hole of lid 8, numeral-power interface 9 passes through the centre bore of circuit board vessel bottom head 8, is screwed and holds in circuit board
On device 3；Ultraviolet lens 1, lens barrel 2, circuit board container 3 screw installation by screw thread.
Described sic ultraviolet single-element detector 4 is sglux company sg01xl-c5 photodiode detector.
The advantage of patent device is:
1. structure is simple, small volume, lightweight, and circuit adopts high density fabric swatch to design；Structure overall by camera lens, shank,
Container three part forms, and is easy to assemble, changes, carries, and can need condition for peace according to different detections, change detector and camera lens,
Adjustment flame detecting ability；
2. Micro Energy Lose design, can be powered with battery during autonomous working, cruise a few days, also can be directly connected to host computer and power；
3. digital design, at utmost can reduce interference, realize result of detection long-distance transmissions, change circuitous resistance
Parameter, can find candle light in 2 meters, by calibration, can differentiate fw magnitude light intensity signal in field range, therefore can also
For demarcating other flame detection devices；
4. select uvc wave band to be used for flame detecting, round-the-clock normal work can be not easily susceptible to environmental effect；
5.sic ultraviolet single-element detector good to ultraviolet light cut-off characteristicses it is not necessary to optical filter, optical texture is simple；
6. this device can be used independently as the approaching alarming device of flame, also can use as radiometer module.It is designed with
Tlc548 is serial line interface as modulus conversion chip, can access drive signal according to practical situation, with computer to programming
To result of detection Real-time Collection, monitoring；
7. highly versatile, the spi interface of tlc548 chip does not have minimum requirements to time sequence frequency, and driving frequency is less than khz
Computer software frequency it is also possible to reach the serial communication frequency of maximum 2mhz；
8. separate with slave computer, on the one hand save volume and power consumption, on the other hand design as independent UV detection module,
Work can be made not rely on control chip, be adapted to different operating modes.
Brief description
Fig. 1 is flame detecting module outward appearance.
Fig. 2 is flame detecting modular unit；Wherein:
1- ultraviolet lens 2- lens barrel 3- circuit board container
4- ultraviolet single-element detector 5- setting-up piece 6- hardware circuit board
7-led display lamp 8- circuit board vessel bottom head 9- numeral-power interface.
Fig. 3 is UV detection module drawing, wherein:
D: main diameter l: principal length w: body width.
Fig. 4 is hardware circuit board figure, and wherein figure (a) is front elevation, and figure (b) is reverse side figure；Wherein:
4-1- power interface 4-2- numeral and led interface 4-3- prober interface
The conversion of 4-4- current/voltage, amplification, tuningout circuits 4-5- differential comparison circuit
4-6- analog to digital conversion circuit 4-7- linear power source circuit.
Fig. 5 is hardware circuit principle figure.
Specific embodiment
It is described in detail below in conjunction with the accompanying drawings, so that architectural feature and the functional characteristics of this patent can be better described,
Rather than limit the protection domain of this patent.
Described module size parameter is as follows:
D=φ 36mm；L=92mm；W=50mm；
Module weight is less than 200g.
Operation principle is: by the power interface of numeral-power interface 9, through the linear power supply module of hardware circuit board
Running voltage is provided；Flame light focuses on ultraviolet single-element detector 4 by ultraviolet lens 1, and the uvc band of light of flame is converted to
Photo-signal, input hardware circuit board 6 amplifies filtration module by signal and photosignal is amplified, and it is pre- that signal exceedes comparator
If led display lamp 7 can be driven during threshold value, for the instruction of flame warning；Analog-to-digital conversion module is in the number of numeral-power interface 9
Under word interface driver, the voltage signal of amplification can be converted to digital signal, through numeral-power interface output；
Occupation mode is: for different lens focus, detector size, can be by adjusting lens barrel and circuit board container
Between mounting distance, so that detector is on camera lens focal plane, due to target generally from detector far it is believed that being equal to a distance from this
Lens focus, light school concrete grammar is: to module for power supply, controls plate interface to access numeral from slave computer (single-chip microcomputer, dsp etc.) and connects
Mouth is connected with detecting module, requires to drive signal according to the work schedule of tlc548, by the communication interface of panel, with meter
Calculation machine is connected, and by interface program, can obtain real-time UV radiation intensity data.Module access slave computer is made monitor in real time
Work, observes standard ultraviolet source such as deuterium lamp, in the case of observation relative position is constant, unscrews or screws lens barrel, so that output is tied
When fruit reaches maximum, detector is optimal with relative position of lens, fixes this relative position.Above ultraviolet flame detecting module light school
Complete.
After the completion of installation with light school, as long as providing the voltage more than 5v, mould to the power interface in numeral-power interface
Block just can work independently.When the ultraviolet light intensity in flame exceedes certain preset value, the led lamp of module will light, otherwise then can
Secretly.Can be powered with battery, Micro Energy Lose design can be continued a journey a couple of days.This detecting module accesses the digital control of slave computer and connects
Mouthful, after the intensity of a fire with code value calibration, intensity of a fire strength information can be shown on computers in real time.Due to its high sensitivity,
This device can serve as standard detector and is applied to fire-fighting equipment detection technique field, is specifically for use in and other ultraviolet flames are visited
Survey calibration and the maintenance of device.
Resistance parameter system of selection with regard to the detector module of this patent statement is briefly described below.Because this module is complete
Digitized, can ignore the impact to SNR degradation for the external disturbance, therefore only need to consider signal processing circuit and detector
Self-noise and amplitude.
The circuit theory diagrams of hardware circuit board used by this detector module are shown in accompanying drawing 5, and input source is sg01xl c5 ultraviolet
Uvc single-element detector, is powered using battery, and the equivalent of device current/voltage conversion across resistance is
Return to zero in circuit partial parameters r3=r12、r2=r13.Because amplifier useful signal is 0-5v, tlc548 is 8 Bits Serial ad, this meaning
The minimum photoelectric current that taste that this device can detect is:
Work as r1=1g ω, r5=1k ω, r6=1m ω, r3=1k ω, r2=50k ω can obtain r=1 [g ω] × 1001
× 50 transimpedance gain, that is, minimum current be
The maximum photoelectric transformation efficiency of ultraviolet single-element detector is 0.12a/w, dark current 25.3fa, typically requires signal to want
Quite could be detected that is to say, that this device is as radiometer with dark current, minimum can detect 210.8fw, differentiate
The optical signal of 3.2fw magnitude, makes the faint flare up fire of long-range detection be possibly realized, which reflects this device as siren
High sensitivity.
Analyze from noise, can obtain circuit output rms noise by simulation software is 2.23mv.It considers detection
Device noise current density inWith dark current id=25.3 relations areWith lmc6044 amplifier noise.Ad used by contrast
Chip tlc548 dynamic range 5v, 8 bit resolutions, its resolution is 19.5mv, and analogue signal noise peak-to-peak value is made an uproar for 6 times of rms
Sound about 12mv, the equivalent voltage resolution less than ad.It can be seen that changing the code value performance that parameter designing can take full advantage of ad.
Claims (2)
1. a kind of ultraviolet portable digital Generic Alert module for flame detecting, including ultraviolet lens (1), lens barrel (2),
Circuit board container (3), sic ultraviolet single-element detector (4), setting-up piece (5), hardware circuit board (6), led display lamp (7), electricity
Road plate vessel bottom head (8), numeral-power interface (9) it is characterised in that:
Described ultraviolet lens (1) have anti-reflection film, have good light cut-off characteristicses to visible ray, and focal length is less than lens barrel (2) length,
Afterbody has outer installation screw thread；
Described lens barrel (2), material is aluminium alloy, cylindrical hole shape, and female thread is opened at two ends, in addition at the screw thread of two ends, remaining
Partly all make insulation processing；
Described circuit board container (3), material is aluminium alloy, cylindrical hole shape, screw thread over one end, and the end face of whorl side is opened
Hole, both sides have semi arch installing hole empty, and in addition at the screw thread of two ends, remainder all makees insulation processing；
Described sic ultraviolet single-element detector (4) is ultraviolet sic unit photovoltaic detector, and sensitive band is uvc；
Described setting-up piece (5), material is polyimide resin, and installing hole is opened in pad both sides；
Described hardware circuit board (6), comprises linear power source circuit, current-to-voltage converting circuit, signal amplification circuit filter, partially
Put voltage regulator circuit, differential comparison circuit, analog to digital conversion circuit and peripheral signal power interface, using high density fabric swatch, micro-
Power dissipation design, circuit board is circular, and diameter is less than 30mm；Described linear power source circuit adopts ti company Micro Energy Lose voltage regulator chip
lp2950-n；Described current-to-voltage converting circuit, signal amplification circuit filter and bias voltage regulator circuit adopt ti company
Cmos tetra- road Micro Energy Lose operational amplifier chip lmc6044；Described differential comparison circuit is recommended defeated using microchip company
Go out Micro Energy Lose chip mcp6541；Described analog to digital conversion circuit adopts ti company low-power consumption 8 Bits Serial ad chip tlc548；
Described led display lamp (7), is HONGGUANG led, its driving voltage 5v；
Described circuit board vessel bottom head (8), material aluminium alloy, circular, both sides are opened screw mounting hole, are opened led and refer at partial center
Show lamp (7) position hole, numeral-power interface (9) position hole is opened in center；
Described numeral-power interface (9), is powered using battery or is powered using slave computer power interface.Power interface and number
Grounded shield between word interface；
Detector (4), led display lamp (7), numeral-power interface (9) are connected with the respective electric interface of hardware circuit board (6)；
Detector (4) is installed on circuit board container (3) front by setting-up piece (5)；Hardware circuit board (6) is installed on circuit board container
(3) reverse side, its zero potential is connected with the zero potential of hardware circuit board (6).Led display lamp (7) is placed in circuit board vessel bottom head (8)
Eccentric in the hole, numeral-power interface (9) pass through circuit board vessel bottom head (8) centre bore, be screwed in circuit board hold
On device (3)；Ultraviolet lens (1), lens barrel (2), circuit board container (3) screw installation by screw thread.
2. a kind of ultraviolet portable digital Generic Alert module for flame detecting as claimed in claim 1, its feature
It is, described sic ultraviolet single-element detector (4) is sglux company sg01xl-c5 photodiode detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721604.XU CN205899745U (en) | 2016-07-11 | 2016-07-11 | A general alarm module of portable digitization of ultraviolet for flame is surveyed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721604.XU CN205899745U (en) | 2016-07-11 | 2016-07-11 | A general alarm module of portable digitization of ultraviolet for flame is surveyed |
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| CN201620721604.XU Expired - Fee Related CN205899745U (en) | 2016-07-11 | 2016-07-11 | A general alarm module of portable digitization of ultraviolet for flame is surveyed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128009A (en) * | 2016-07-11 | 2016-11-16 | 中国科学院上海技术物理研究所 | A kind of ultraviolet portable digital Generic Alert module for flame detecting |
| CN114038152A (en) * | 2021-10-12 | 2022-02-11 | 漳州玖神网络科技有限公司 | Wisdom garden fire control early warning device |
-
2016
- 2016-07-11 CN CN201620721604.XU patent/CN205899745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128009A (en) * | 2016-07-11 | 2016-11-16 | 中国科学院上海技术物理研究所 | A kind of ultraviolet portable digital Generic Alert module for flame detecting |
| CN114038152A (en) * | 2021-10-12 | 2022-02-11 | 漳州玖神网络科技有限公司 | Wisdom garden fire control early warning device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |