CN109799202A - A kind of device and method carrying out species analysis using reflection of electromagnetic wave image - Google Patents
A kind of device and method carrying out species analysis using reflection of electromagnetic wave image Download PDFInfo
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- CN109799202A CN109799202A CN201910038991.5A CN201910038991A CN109799202A CN 109799202 A CN109799202 A CN 109799202A CN 201910038991 A CN201910038991 A CN 201910038991A CN 109799202 A CN109799202 A CN 109799202A
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Abstract
The invention discloses a kind of device and methods that species analysis is carried out using reflection of electromagnetic wave image, according to the difference of absorbing wavelength between target substance and the other materials that may be coexisted with it, using one or more kinds of different wave lengths or the light source of wave band, and the filter for filtering out unnecessary wave band light of arranging in pairs or groups；Before measurement, lens cap is closed, all light sources are subjected to one or many photosensitive shootings to object of reference coating, the noise zero of basis of formation is referring to data；Lens cap is removed, measured matter is put into the filter front end of shell inner sensor, all light sources are successively irradiated measured matter, and sensor receives back wave of each light source on measured matter and forms image data；Cloud server receives image data and carries out species analysis.It is widely distributed to spectrum range requirement that the present invention solves existing spectral analysis apparatus, needs high-grade light source, sensor and software that equipment price height is caused to be unfavorable for the technical issues of promoting the use of.
Description
Technical field
The present invention relates to species analysis field more particularly to a kind of species analysis is carried out using reflection of electromagnetic wave image
Device and method.
Background technique
In the fields such as medicine, criminal investigation, scientific research, food, agricultural and routine use, all exists and different material is determined
The demand of property and quantitative analysis, wherein spectrum analysis is one of the method being in daily use, by using the electromagnetic wave of different wave length, especially
It is to pass through ultraviolet light, it is seen that the reflection of light or near infrared light wave band or excitation spectrum analysis can determine substance kind
Class.Existing spectral analysis technique central principle is that substance when by recording each different wave length is grown in wave section as far as possible
The curve optics map that target substance is drawn to the absorptivity of the wavelength, by extract characteristic point peak load and database information into
Row comparison, Lai Jinhang species analysis.
There are different wave crests and curve of spectrum shape for different substances, therefore by comparison database model, can be right
Substance carries out qualitative.The high section (FWHM) of the physics overall with of common light source and sensor half is in 10nm or so, correspondence image
About 130/cm, if directly very poor using visible resolution, it is therefore desirable to which complicated element and software approach compensation cause whole
Body equipment valuableness is huge.
As widely distributed as possible due to requiring spectrum range, used light source is expensive, such as close red
In outside line section, conventional spectrometers must generate the wave band point of 900-2500nm or more using special light sources such as tungsten halogen lamp
Cloth can just be effectively formed above-mentioned map, other cheap and small-sized light source such as LED light, can not be traditional since wave band is too narrow
Equipment application.
On a sensor, the requirement for the wavelength band that conventional method detects sensor is very high, causes common cheap
Sensor can not be used, for example the sample range of charcoal based sensor (CCD) can only detect the infrared wave of 1100nm upwards
Section, is approximately equal to 9100/cm, is not used to the drafting of above-mentioned map, it is necessary to use rare indium gallium arsenic (InGaSn) sensor
Deng thousands of times that, complexity and price are often the former.
In addition it is influenced by design principle, it is necessary to which, using light splitting design, relatively inexpensive scheme includes that use is based on
The method that the Fourier filter disc of MEMES carries out light splitting timesharing, but error is big between system, for traditional approach precision and resolution
It is fatal defect for supreme requirement, remaining high-end beam splitting system then produces complicated expensive, for example LVF is linearly gradually
Become optical filter, needs to carry out tens of up to a hundred layers of plated films by various compounds, price is the former hundreds times.
Device analysis method currently used in the market is all the spectrogram for creating complete tie substance as far as possible, and is led to
The resolution ratio for improving full figure spectrum is crossed, qualitative analysis is carried out to substance, although this method has wide spectrum adaptability, can detecte
With thousands of kinds of substances of difference, but equipment volume is huge, expensive, and most equipment arrive millions of people hundreds of thousands of
People's coin is not suitable as just sieve apparatus and is widely used in First Line.
Summary of the invention
It is widely distributed to spectrum range requirement in order to solve existing spectral analysis apparatus, need high-grade light source, sensing
Device and software cause equipment price height to be unfavorable for the technical issues of promoting the use of, and utilize reflection of electromagnetic wave the invention proposes a kind of
The device and method of image progress species analysis.
The present invention adopts the following technical scheme:
A kind of device carrying out species analysis using reflection of electromagnetic wave image, including shell, sensor, light source, control module
And communication module, the shell are made of impermeable photoresist magnetic material, the front end of the shell includes openable lens cap, described
The material of lens cap is identical as shell, and side is coated with one layer of object of reference coating, the object of reference in the lens cap corresponding housing
Coating is used for system zero, and the sensor is installed on the enclosure interior, and the sensor is for acquiring required electromagnetism
Electromagnetic wave signal in wave wavelength band, the light source are mounted on the sensor perimeter, and the control module is for controlling light
Source output light, sensor acquire reflected waveband, and the communication module is sent to cloud service for receiving sensor Data Concurrent
In device, the cloud server is for being analyzed and being exported the image data that sensor acquires.
Preferably, the quantity of the light source be it is a plurality of, a plurality of light sources are for emitting different-waveband or wavelength
's
Light.
Preferably, the transmitting terminal of the sensor signal receiving end and light source is additionally provided with filter, the filter is used for
Filter extra electromagnetic wave bands.
Preferably, the sensor, light source, control module, communication module are also connected with power supply module.
Preferably, the control module, communication module, power supply module are located at outside shell.
A method of carrying out species analysis using above-mentioned apparatus, the step of the method is as follows: according to target substance with
And between the other materials that may be coexisted with it absorbing wavelength difference, use one or more kinds of different wave lengths or the light of wave band
Source, and the filter for filtering out unnecessary wave band light of arranging in pairs or groups；Before measurement, lens cap is closed, all light sources apply object of reference
Layer carries out one or many photosensitive shootings, and the noise zero of basis of formation is referring to data；Lens cap is removed, measured matter is put
Enter the filter front end of shell inner sensor, all light sources are successively irradiated measured matter, and sensor receives each light source
Back wave on measured matter simultaneously forms image data；Cloud server receives image data and carries out species analysis.
Preferably, the step of cloud server progress species analysis, is as follows: in advance by the pure sample of measured matter
The various samples that this and measured matter and other mixtures that may be present are mixed with mode in varing proportions, carry out respectively
Repeatedly test, basis of formation database purchase is in cloud server；Cloud server by the image data of sensor collection with
Pixel is that unit carries out region segmentation, and the image data after segmentation is compared cloud server with basic data；It will be different
General image reflectivity, unit area reflectivity and basic data compare under wave band, determine the highest basic data pair of similarity
Measured matter carries out qualitative analysis；By general image reflectivity, form the unit area quantity reflected and basic data comparison
Obtain the quantitative analysis of measured matter.
Preferably, can also simply be positioned to measured matter by the regional location that general image forms reflection.
The beneficial effects of the present invention are: the image disclosed by the invention using reflection of electromagnetic wave is to the qualitative of known substance
It with quantitative analytical device and method, is directed to used in specific one or several kinds of known substances, using different material to spy
Catoptric imaging figure obtained by the difference of the long electro-magnetic wave absorption degree of standing wave, cooperates calculation method, carries out to unknown materials qualitative
The method of quantitative analysis can also carry out qualitative and quantitative analysis to predetermined substance in the mixture of several substances, and can pass through
Fast replacing light source or filter repack rapidly the equipment suitable for other substances into, have the wide spectrum characteristic reached the same goal by different routes.
Detailed description of the invention
Fig. 1 is the spectrogram for the typical IR wave band that the present invention is shown；
Fig. 2 is the structural schematic diagram of apparatus of the present invention；
Fig. 3 is the control schematic diagram of apparatus of the present invention；
Fig. 4 is the flow diagram that the present invention uses species analysis device；
Fig. 5 is the flow diagram that the present invention carries out species analysis；
Fig. 6 is the absorption of UV curve graph of cocainehydrochloride in the embodiment of the present invention；
Fig. 7 is the absorption of UV curve graph of fentanyl citrate in the embodiment of the present invention；
Fig. 8 is the different-waveband ultraviolet imaging figure of cocainehydrochloride in the embodiment of the present invention, fentanyl citrate mixt.
In Fig. 1-8: 1, shell, 2, light source, 3, filter, 4, object of reference coating, 5, sensor, 6, lens cap, 7, control mould
Block, 8, communication module, 9, power supply module, 10, cloud server.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention is further described:
Embodiment: existing spectral analysis technique central principle is grown in wave section as far as possible by recording each different waves
Substance draws the curve optics map of target substance to the absorptivity of the wavelength when long, by extracting characteristic point peak load and data
Library information compares, Lai Jinhang species analysis, is the spectrogram of a typical infrared band, abscissa as shown in Fig. 1
A centimetre wave number (1/cm), ordinate is absorption/reflection rate, different substances there are different wave crests and curve of spectrum shape,
Therefore by comparison database model, substance can be carried out qualitative.The physics overall with of common light source and sensor half is high
(FWHM) section is about 130/cm in 10nm or so, correspondence image, if it is directly very poor using visible resolution, therefore need
Complicated element and software approach compensation are wanted, causes integral device valuableness huge.
As widely distributed as possible due to requiring spectrum range, used light source is expensive, such as close red
In outside line section, conventional spectrometers must generate the wave band point of 900-2500nm or more using special light sources such as tungsten halogen lamp
Cloth can just be effectively formed above-mentioned map, other cheap and small-sized light source such as LED light, can not be traditional since wave band is too narrow
Equipment application, embodiment described in the present invention is to carry out species analysis according to the different of material absorbing UV resistance, also not
It excludes to carry out species analysis using the various electromagnetic wave bands such as visible light, infrared ray, microwave.
It is as illustrated in figs. 2-3 a kind of control of device and the device that species analysis is carried out using reflection of electromagnetic wave image
Schematic diagram processed, including shell 1, sensor 5, light source 2, control module 7 and communication module 8, the shell 1 is by impermeable photoresist magnetic material
Material is made, and the front end of the shell 1 includes openable lens cap 6, and the material of the lens cap 6 is identical as shell, the mirror
Side is coated with one layer of object of reference coating 4 in 6 corresponding housing 1 of skull, and the object of reference coating 4 is used for system zero, described
Sensor 5 is installed on inside the shell 1, and the sensor 5 is used to acquire the electromagnetic wave letter within the scope of required electromagnetic wave bands
Number, the transmitting terminal of 5 signal receiving end of sensor and light source 2 is additionally provided with filter 3, and the filter 3 is extra for filtering
Electromagnetic wave bands, the light source 2 are mounted on 5 periphery of sensor, the quantity of the light source 2 be it is a plurality of, it is described a plurality of
Light source 2 is used to emit the light of different-waveband or wavelength, according to required wavelength band, may be selected that specific band light can be emitted
The light source 2 of line also can choose the light source 2 of pervasive wider range, may be selected that corresponding filter is added between light source 2 and measured matter
Mirror 3 is realized and only has specific wave band light that can be irradiated to measured matter, withouyt filter 3 or can also use high transmittance
Material production filter 3 is to guarantee that light percent of pass, sensor 5, light source 2, filter 3 are placed in a shell 1,1 material of shell
Matter can prevent visible light and other electromagnetic waves that can interfere imaging, the shell 1 have a same material can open and
The lens cap 6 of closing, lens cap 6, which is coated with one layer to lumen portion, can be used as the object of reference coating 4 that system zero uses, ginseng used
It can be selected according to different application scene, the factors such as wave band or production cost according to object coating.
Sensor 5 is the sensor 5 sensitive to the electromagnetic wave signal in required wavelength band, includes but are not limited to charge
Coupled apparatus (CCD).The sensor 5 can be only sensitive to the wavelength band of needs, is also possible to pervasive to wider range wave band
Sensitive sensor 5.If sensor 5 is sensitive to the wave band of wider range, may be selected to add between sensor 5 and measured matter
Enter corresponding filter 3, filters unwanted wave band light intake, the susceptibility of wave band required for improving.It can also be withouyt filter 3
Or use high transmittance material production filter 3 to improve percent of pass.The pluggable replacement of filter 3, to meet sensor 5 for difference
The detection demand of wave band.
The control module 7 is for controlling 2 output light of light source, the acquisition reflected waveband of sensor 5, the communication module 8
It is sent in cloud server 10 for 5 Data Concurrent of receiving sensor, what the cloud server 10 was used to acquire sensor 5
Image data is analyzed and is exported, and the sensor 5, light source 2, control module 7, communication module 8 are also connected with power supply module
9, in the present embodiment, the control module 7, communication module 8, power supply module 9 are located at outside shell 1, the present invention be also not excluded for by
Power supply module 9 is set as the technical solution of built-in lithium battery or battery.
The charging modes of 9 pieces of mould of power supply can be fixed power supply line, or fixed electric source line interface, such as Android mobile phone
Standard charging mouth, charging process is completed by external wiring, can also be carried out by wireless charging mode contactless
Charging.Power supply module 9 is also possible to access data terminal smart phone, computer etc. by fixed USB line interface, from number
Power supply supply is obtained according to terminal device.
Communication module 8 can pass through the different channel radio such as GSM/GPRS, narrowband Internet of Things, bluetooth, Wi-Fi, Zigbee
News mode, collecting and sending for image data, communication module 8 can also be by way of bluetooth, wired connections and data
Terminal such as smart phone is connected, and transmits data to cloud server 10 by data terminal and carries out analysis and data life
At.
It is as shown in Fig. 4 a kind of method for carrying out species analysis using apparatus of the present invention, the step of the method is as follows:
S1, according to the difference of absorbing wavelength between target substance and the other materials that may be coexisted with it, using a kind of or
The light source 2 of a variety of different wave lengths or wave band, and the filter 3 for filtering out unnecessary wave band light of arranging in pairs or groups；
Before S2, measurement, lens cap 6 is closed, all light sources 2 are subjected to one or many photosensitive shootings, shape to object of reference coating 4
At the noise zero on basis referring to data；
S3, lens cap 6 is removed, measured matter is put into 3 front end of filter of 1 inner sensor 5 of shell, all light sources 2 are successively to quilt
It surveys substance to be irradiated, sensor 5 receives back wave of each light source 2 on measured matter and forms image data；
S4, cloud server 10 receive image data and carry out species analysis.
The step of carrying out species analysis as shown in Fig. 5 for cloud server 10:
S5, in advance by the purified sample of measured matter and measured matter and other mixtures that may be present in varing proportions
The various samples mixed with mode, are repeatedly tested respectively, and basis of formation database purchase is in cloud server 10；
The image data that S6, cloud server 10 collect sensor 5 carries out region segmentation, cloud server as unit of pixel
10 the image data after segmentation is compared with basic data；
S7, general image reflectivity, unit area reflectivity and basic data under different-waveband are compared, determines similarity highest
Basic data to measured matter carry out qualitative analysis；
S8, it compares to obtain measured matter by general image reflectivity, the unit area quantity of formation reflection and basic data
Quantitative analysis；
S9, measured matter is simply positioned by the regional location that general image forms reflection.
By whether containing fentanyl citrate illustrating the species analysis that illustrates of the present invention in analysis cocainehydrochloride
The concrete operation method of method:
In criminal investigation, fentanyl citrate be thousands of times stronger than common drugs can micro lethal addictive substance, therefore
It needs to verify and whether contains fentanyl citrate in tested cocainehydrochloride, the target substance under this scene is fentanyl
Citrate.Under ultra-violet bands, the absorptivity of cocainehydrochloride and fentanyl citrate is respectively such as attached drawing 6,7 institute of attached drawing
Show.
The wave band with particularity is picked out by screening:
1,280nm absorptivity: 0% cocainehydrochloride 27% of fentanyl citrate
2,260nm absorptivity: 40% cocainehydrochloride 20% of fentanyl citrate
3,245nm absorptivity: 45% cocainehydrochloride 100% of fentanyl citrate
4,240nm absorptivity: 80% cocainehydrochloride 100% of fentanyl citrate
According to the suitable light source 2 of the waveband selection of selection and sensor 5, or the filter 3 of change light source 2 and sensor.In shape
At the noise zero on basis referring to after data, by equipment to known pure fentanyl citrate, cocainehydrochloride and
The mixture of the two different proportion is repeatedly irradiated and is acquired, and input algorithm forms master pattern.In daily use,
The device is irradiated and acquires to the cocainehydrochloride that may include fentanyl citrate through the invention, input mark
Quasi-mode type compares, and carries out qualitative and quantitative analysis to fentanyl citrate, the cocainehydrochloride mixture of unknown ratio.
The rough carry out of the method that can also manually visualize of reference picture is qualitative and rational judgment by manually visualizing, such as attached
The cocainehydrochloride shown in Fig. 8, imaging picture of the fentanyl citrate mixt under different-waveband ultraviolet light,
Under the ultraviolet light irradiation of 280nm, the white bright spot that can visually form reflection has and occupies 10% or so region, and in 280-
Under the ultra-violet bands irradiation of 240nm, darkness deepens illustrates that the effect absorbed is become better and better for the color of picture, it can therefore be concluded that
It include fentanyl citrate in cocainehydrochloride, and content is substantially 10% or so.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (8)
1. a kind of device for carrying out species analysis using reflection of electromagnetic wave image, including shell, sensor, light source, control mould
Block and communication module, characterized in that the shell is made of impermeable photoresist magnetic material, and the front end of the shell includes openable
The material of lens cap, the lens cap is identical as shell, and side is coated with one layer of object of reference coating in the lens cap corresponding housing,
The object of reference coating is used for system zero, and the sensor is installed on the enclosure interior, and the sensor is for adopting
Electromagnetic wave signal within the scope of electromagnetic wave bands needed for collecting, the light source are mounted on the sensor perimeter, the control module
For controlling light source output light, sensor acquisition reflected waveband, the communication module is sent for receiving sensor Data Concurrent
Into cloud server, the cloud server is for being analyzed and being exported the image data that sensor acquires.
2. a kind of device for carrying out species analysis using reflection of electromagnetic wave image according to claim 1, characterized in that
The quantity of the light source be it is a plurality of, a plurality of light sources are used to emit the light of different-waveband or wavelength.
3. a kind of device for carrying out species analysis using reflection of electromagnetic wave image according to claim 1, characterized in that
The transmitting terminal of the sensor signal receiving end and light source is additionally provided with filter, and the filter is for filtering extra electromagnetic wave wave
Section.
4. a kind of device for carrying out species analysis using reflection of electromagnetic wave image according to claim 1, characterized in that
The sensor, light source, control module, communication module are also connected with power supply module.
5. a kind of device for carrying out species analysis using reflection of electromagnetic wave image according to claim 1 or 4, feature
It is that the control module, communication module, power supply module are respectively positioned on outside shell.
6. a kind of method for carrying out species analysis using above-mentioned apparatus, characterized in that the step of the method is as follows: according to target
Difference of absorbing wavelength, uses one or more kinds of different wave lengths or wave between substance and the other materials that may be coexisted with it
The light source of section, and the filter for filtering out unnecessary wave band light of arranging in pairs or groups；Before measurement, lens cap is closed, by all light sources to ginseng
One or many photosensitive shootings is carried out according to object coating, the noise zero of basis of formation is referring to data；Lens cap is removed, will be tested
Substance is put into the filter front end of shell inner sensor, and all light sources are successively irradiated measured matter, and sensor receives each
Back wave of a light source on measured matter simultaneously forms image data；Cloud server receives image data and carries out substance point
Analysis.
7. a kind of method for carrying out species analysis using above-mentioned apparatus according to claim 6, characterized in that the cloud
It is as follows that server carries out the step of species analysis: in advance may with other by the purified sample of measured matter and measured matter
The various samples that existing mixture is mixed with mode in varing proportions, are repeatedly tested respectively, basis of formation data inventory
It is stored in cloud server；The image data of sensor collection is carried out region segmentation, cloud by cloud server as unit of pixel
Image data after segmentation is compared end server with basic data；By general image reflectivity, unit under different-waveband
Region reflectivity and basic data compare, and determine that the highest basic data of similarity carries out qualitative analysis to measured matter；Pass through
General image reflectivity, the unit area quantity for forming reflection and basic data compare to obtain the quantitative analysis of measured matter.
8. a kind of method for carrying out species analysis using above-mentioned apparatus according to claim 7, characterized in that pass through entirety
The regional location that image forms reflection can also simply position measured matter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455408A (en) * | 2019-09-20 | 2019-11-15 | 广州星博科仪有限公司 | A kind of portable spectrum camera and control method of intelligent terminal control |
| CN111487244A (en) * | 2020-05-09 | 2020-08-04 | 青岛合启立智能科技有限公司 | PH value detection device based on color change |
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