CN204203096U - Diffuse transmission type vehicle-mounted flue dust detection alarm device - Google Patents
Diffuse transmission type vehicle-mounted flue dust detection alarm device Download PDFInfo
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- CN204203096U CN204203096U CN201420298057.XU CN201420298057U CN204203096U CN 204203096 U CN204203096 U CN 204203096U CN 201420298057 U CN201420298057 U CN 201420298057U CN 204203096 U CN204203096 U CN 204203096U
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Abstract
The utility model discloses a kind of diffuse transmission type vehicle-mounted flue dust detection alarm device, comprise power module, diffuse transmission type optical-electric module, dust concentration calculating module, LCD MODULE and acousto-optic voice alarm module.Diffuse transmission type optical-electric module comprises LED infrarede emitting diode and photoelectric cell, the output terminal of described optical-electric module connects the input end of frequency-selecting amplifier, the input end that described amplifier calculates module with dust concentration after wave detector is connected, and the port output that described dust concentration calculates module connects LED infrarede emitting diode, LCD MODULE and acousto-optic voice alarm module respectively.This device adopts scattering method to measure dust concentration in car in real time, do not affect by soot dust granule size, measuring accuracy is high, testing result shows in real time, can sound and light alarm after transfiniting, prompting driver and crew take measures to reduce flue dust inlet, ensure that driver and crew are healthy, this device adopts supplying power for photovoltaic cell simultaneously, can using electricity wisely environmental protection.
Description
Technical field
The utility model relates to a kind of pick-up unit indicating vehicle interior flue dust state, the detection alarm device of flue dust situation in especially solar powered employing light scattering method inspection vehicle.
Background technology
In vehicle travel process, the smog etc. that dust granules in surrounding environment, the waste gas of other vehicular discharge, driver and crew smoke all can enter compartment, the existence of these soot dust granules can affect the ride comfort of occupant, even brings harmful effect to health.
Flue dust detects can be divided into two large classes according to measurement mechanism: sampling method and non-sampling method.Sampling method is from subject area, get the gas sample containing flue dust, will send into analytical measurement system to measure dust concentration from sample after particle separation.Its typical method has microbalance succusion, piezoelectric crystal method, filter membrane weight method etc.This method adopts the mode of off-line measurement usually, and vehicle operationally exists vibrations, is not therefore suitable for the real-time detection of vehicle interior flue dust situation.
The typical method of non-sampling method has blackness method, nephelometry, light scattering method etc., and it is that the phenomenon such as decay, scattering utilizing light, ray etc. to produce because soot dust granule exists carrys out indirect inspection dust concentration.After blackness method refers to that flue dust is carried out range estimation comparison from the glass sheet of different black area by monitoring personnel, obtain smoke dust discharge concentration according to lingemann blackness and the dust concentration table of comparisons.This off-line type that belongs to equally is measured, and is not suitable for the real-time detection of dust concentration in compartment.
Nephelometry installs flue both sides on the same line detector and light source, because the effect such as absorption, scattering of soot dust granule to light causes light intensity attenuation, by obtaining dust concentration to the detection of light intensity.The method technology maturation, principle are simple, and the transmitted light intensity received due to detector is relevant with concentration to the size of particle, has certain limitation.
Light scattering method based on light scattering principle, when light beam incide particle (no matter being solid particle, drop or bubble) upper time, will to space surrounding scattering, each scattering parameter of light and the concentration of soot dust granule closely related.Detector is arranged on a certain scattering angle place, after obtaining scattered light intensity data, can dust concentration be calculated based on scattering theory.Compare other metering system, light scattering method all can be measured solid, liquid and gas particles, and need not know its chemical composition, has applicability wide, grain diameter measurement wide ranges, measures the advantages such as accurate, precision is high, Repeatability is good.Be widely used and air quality today that the situation is tense at vehicle, flue dust situation in real-time detection display car, and send dust concentration overload alarm when concentration over-standard, prompting driver and crew take to close the measures such as vehicle window and have important practical significance.
For ensureing comfortableness and the health of driver and crew in compartment, the utility model provides a kind of diffuse transmission type automobile-used flue dust detection alarm device, adopt flue dust degree in the real-time detection display car of light scattering method, and send alarm driver and crew when concentration transfinites and take to close the measure such as vehicle window and outer circulation, thus avoid more flue dust to enter compartment, reduce its harm to human body.
Utility model content
For achieving the above object, the utility model proposes diffuse transmission type vehicle-mounted flue dust detection alarm device, comprise power module, diffuse transmission type optical-electric module, dust concentration calculating module, LCD MODULE and acousto-optic voice alarm module.Diffuse transmission type optical-electric module comprises LED infrarede emitting diode and photoelectric cell, the output terminal of described diffuse transmission type optical-electric module connects the input end of frequency-selecting amplifier, the input end that described amplifier calculates module with dust concentration after wave detector is connected, and the port output that described dust concentration calculates module connects LED infrarede emitting diode, LCD MODULE and acousto-optic voice alarm module respectively.
Power module is made up of solar panel and Voltage stabilizing module, and the input end of Voltage stabilizing module connects the output terminal of solar panel, and described Voltage stabilizing module is to power supplies such as microprocessor, liquid crystal display and digital audio chips.The employing of the program, avoid the line inconvenience of vehicle power power supply mode and inaesthetic problem, decrease and take interior space, the problem of battery frequently changed by the needs that simultaneously it also avoid powered battery mode, serves the effect of economical environment-protective.
Diffuse transmission type optical-electric module comprises LED infrarede emitting diode and photoelectric cell, the output terminal of described optical-electric module connects the input end of frequency-selecting amplifier, the input end that described amplifier calculates module with dust concentration after wave detector is connected, and the port output that described dust concentration calculates module connects LED infrarede emitting diode, LCD LCD MODULE and acousto-optic voice alarm module respectively.
Further, the LED infrarede emitting diode of diffuse transmission type optical-electric module is arranged on device top, photoelectric cell is placed in device right part and perpendicular with described LED infrarede emitting diode, flue dust is imported and exported and is placed in device bottom, one of them flue dust import and export with LED infrarede emitting diode be in same straight line, and this straight line and described photoelectric cell position perpendicular.During work, infrared LEDs light emitting diode sends 40kHz infrared light, if smoke dust in tested gas, infrared light penetrates from flue dust manhole appendix; Otherwise soot dust granule surface will scattering occur, thus cause some scattered light to inject infrasil photoelectric cell being converted into electric impulse signal frequently, this signal amplifies through 40kHz frequency-selecting amplifier and is converted to direct current output after detector.
Preferably, acousto-optic voice alarm module comprises LED group and digital audio chip, and the input termination smoke concentration meter of described alarm module calculates the output terminal of module.Dust concentration calculates and is completed by microprocessor, this modules A D sampling receives the direct current signal from diffuse transmission type optical-electric module, result is sent into Liquid Crystal Module and is shown in real time, if result exceeds set threshold value, then LED group is glimmered and is play built-in alarm voice by Single-chip Controlling digital audio chip, prompting dust concentration transfinites, and requires that closing vehicle window, outer circulation and stopping smokes, to reduce the fume amount entering interior.
The beneficial effects of the utility model are: scattering method measures dust concentration in car in real time not to be affected by soot dust granule size, and measuring accuracy is high, and sound and light alarm after transfiniting also adopts supplying power for photovoltaic cell, economical environment-protective again while guarantee driver and crew health.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is diffuse transmission type photoelectric module structure figure of the present utility model.
Fig. 2 is the circuit theory schematic diagram of diffuse transmission type vehicle-mounted flue dust detection alarm device.
In figure, 1. fume gases manhole appendix, 2.LED infrarede emitting diode, 3. infrasil photoelectric cell, 4. diffuse transmission type optoelectronic block, 5. frequency-selecting amplifier, 6. wave detector, 7. dust concentration calculates module, 8. LCD MODULE, 9. acousto-optic voice alarm module, 10. power module, 11. solar panels, 12. Voltage stabilizing modules
Embodiment
In FIG, diffuse transmission type optical-electric module 4 is made up of fume gases manhole appendix 1, LED infrarede emitting diode 2 and infrasil photoelectric cell 3.The LED infrarede emitting diode 2 of diffuse transmission type optical-electric module 4 is arranged on device top, photoelectric cell 3 is placed in device right part and perpendicular with described LED infrarede emitting diode 2, flue dust is imported and exported 1 and is placed in device bottom, one of them flue dust import and export with LED infrarede emitting diode 2 be in same straight line, and this straight line and described photoelectric cell 3 position perpendicular.During work, infrared LEDs light emitting diode 2 sends 40kHz infrared light, if smoke dust in tested gas, infrared light penetrates from flue dust manhole appendix; Otherwise soot dust granule surface scattering will occur, thus cause some scattered light to inject infrasil photoelectric cell 3 and be converted into electric impulse signal frequently, this signal amplifies through 40kHz frequency-selecting amplifier 5 and is converted to direct current output after wave detector 6 detection.In compartment, dust concentration is higher, then the infrared light reaching infrasil photoelectric cell 3 is stronger, otherwise, then more weak.
In the embodiment depicted in figure 2, power module 9 is made up of solar panel 11 and Voltage stabilizing module 12, the input end of the output termination Voltage stabilizing module 12 of solar panel 11, the input end of described Voltage stabilizing module 12 connects the output terminal of solar panel 11, and it exports to PIC16 single-chip microcomputer dust concentration calculating module 7, LCD12232 LCD MODULE 8 and uses the acousto-optic voice alarm module 8 of ISD1810 digital audio chip to power.The pwm pulse that dust concentration calculates module 7 control output 40kHz enters LED infraluminescence diode 2, and the infrared light pulse signal access to plant making it launch about 40kHz is inner, if smoke dust in tested gas, infrared light vertically penetrates from flue dust manhole appendix; Otherwise soot dust granule surface will scattering occur, thus cause some scattered light to inject infrasil photoelectric cell 3 being converted into electric impulse signal frequently, this signal amplifies through 40kHz frequency-selecting amplifier 5 and is converted to direct current output after wave detector 6 detection.PIC16 single-chip microcomputer dust concentration calculates module 7 sampling and receives this signal and the dust concentration calculated in gas, sends into LCD12232 LCD MODULE 8 and show in real time after data conversion.If survey concentration and exceed set threshold value, then dust concentration calculates the group flicker of module 7 control LED LED light lamp and by playing the built-in alarm voice of digital audio chip ISD1810LED, prompting dust concentration transfinites, require that closing vehicle window, outer circulation and stopping smokes, to reduce the fume amount entering interior.
Above content describes preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (4)
1. a diffuse transmission type vehicle-mounted flue dust detection alarm device, comprise power module, diffuse transmission type optical-electric module, dust concentration calculates module, LCD MODULE and acousto-optic voice alarm module, it is characterized in that: diffuse transmission type optical-electric module (4) comprises LED infrarede emitting diode (2) and photoelectric cell (3), the output terminal of described diffuse transmission type optical-electric module (4) connects the input end of frequency-selecting amplifier (5), the input end that described amplifier (5) calculates module (7) with dust concentration after wave detector (6) is connected, the port of described computing module (7) exports and connects LED infrarede emitting diode (2) respectively, LCD12232 LCD MODULE (8) and acousto-optic voice alarm module (9).
2. vehicle-mounted flue dust detection alarm device according to claim 1, it is characterized in that: the LED infrarede emitting diode (2) of diffuse transmission type optical-electric module (4) is arranged on device top, described photoelectric cell (3) is placed in device right part and perpendicular with described LED infrarede emitting diode (2), described flue dust is imported and exported (1) and is placed in device bottom, one of them flue dust is imported and exported (1) and LED infrarede emitting diode (2) and is in same straight line, and this straight line and described photoelectric cell (3) position perpendicular.
3. the warning device of vehicle-mounted flue dust detection according to claim 1, it is characterized in that: acousto-optic voice alarm module (9) comprises LED group and digital audio chip, the input termination smoke concentration meter of described alarm module (9) calculates the output terminal of module (7).
4. the warning device of vehicle-mounted flue dust detection as claimed in claim 1, it is characterized in that: power module (10) is made up of solar panel (11) and Voltage stabilizing module (12), the input end of the output termination Voltage stabilizing module (12) of solar panel (11), the output of described Voltage stabilizing module (12) calculates module (7), LCD MODULE (8) and the acousto-optic voice alarm module (9) containing digital audio chip to dust concentration and powers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298057.XU CN204203096U (en) | 2014-06-06 | 2014-06-06 | Diffuse transmission type vehicle-mounted flue dust detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298057.XU CN204203096U (en) | 2014-06-06 | 2014-06-06 | Diffuse transmission type vehicle-mounted flue dust detection alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN204203096U true CN204203096U (en) | 2015-03-11 |
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| CN201420298057.XU Expired - Fee Related CN204203096U (en) | 2014-06-06 | 2014-06-06 | Diffuse transmission type vehicle-mounted flue dust detection alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193688A1 (en) * | 2016-05-09 | 2017-11-16 | 黄方元 | Method for detecting automobile safety |
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2014
- 2014-06-06 CN CN201420298057.XU patent/CN204203096U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193688A1 (en) * | 2016-05-09 | 2017-11-16 | 黄方元 | Method for detecting automobile safety |
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| Date | Code | Title | Description |
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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: 20150311 Termination date: 20160606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |