CN107860473A - A kind of intelligent handhold spectrometer based on cloud data - Google Patents
A kind of intelligent handhold spectrometer based on cloud data Download PDFInfo
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- CN107860473A CN107860473A CN201711007073.3A CN201711007073A CN107860473A CN 107860473 A CN107860473 A CN 107860473A CN 201711007073 A CN201711007073 A CN 201711007073A CN 107860473 A CN107860473 A CN 107860473A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 75
- 238000001228 spectrum Methods 0.000 claims description 36
- 238000012360 testing method Methods 0.000 claims description 22
- 239000004065 semiconductor Substances 0.000 claims description 17
- 238000004422 calculation algorithm Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
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- 238000013528 artificial neural network Methods 0.000 claims description 3
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- 235000013305 food Nutrition 0.000 description 2
- 230000002068 genetic effect Effects 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
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- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241000218606 Pinus contorta Species 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J2003/283—Investigating the spectrum computer-interfaced
- G01J2003/2833—Investigating the spectrum computer-interfaced and memorised spectra collection
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of Handheld spectrometer, including hardware device, mobile terminal system, server；Hardware device includes optical module, control module, shell framework and power supply module；Optical module is by obtaining the spectral information of sample, spectral information is converted into digital data transmission to mobile terminal system by control module, after mobile terminal system is handled spectral information, send data to server, server calls mathematical modeling carries out analysis and identification to the data received, and analysis result is back into mobile terminal system.Handheld spectrometer in the present invention can upload data, and analysis and identification is carried out to sample, real-time, detection is accurate, is easy to carry, easy to use, can be widely applied for every field.
Description
Technical field
The present invention relates to spectral detection analytical technology, and in particular to a kind of intelligent handhold spectrometer based on cloud data.
Background technology
Spectral method of detection is a kind of lossless, non-contact, high efficiency, high-precision detection method, is widely used in biology
The fields such as detection, medicine detection, food inspection and criminal investigation detection.Traditional light spectrum detecting apparatus is bench device, although
Function is strong, and precision is high, but is unfavorable for movement and can only be tested in locality.However, returned again to by outgoing collecting sample
Test cabinet, which carries out test, shortcomings：First, spectral information can not be obtained in time, whether can not be surveyed confirmatory sample spectrum in time
Examination is correct；Second, can not be to irremovable, it is impossible to which the sample for cutting off sampling measures, and transports sample over long distances and add
To the probability of damage of sample；3rd, bench device can not detect for special dimension, such as be led for food, medicinal material
Domain, counterfeit and shoddy goods can not be determined whether there is on the spot, difficulty is brought to law enforcement and evidence obtaining.Thus, develop portable spectrum inspection
Measurement equipment is extremely necessary.
In this year, with the development of technology, Handheld spectrometer product occurs successively, such as handheld Raman spectrometer, hand
Hold formula XRF etc..The patent and article and the spectrometer of sale reported disclosed in prior art lack network connection simultaneously
Realize the function of data transfer.This can cause that because sample data is excessive the situation in hand-held spectrometer can not be stored in,
Sample spectra information can not be shared with related personnel in time or long distance deposits and withdrawals, also once be broken down number there is spectrometer
According to the risk that will be unable to recover.Further, since the main control module data-handling capacity of spectrometer is limited, can not carry out complex
Computing, limit hand-held spectrometer self-ability.More it is essential that current Handheld spectrometer does not have spectrum analysis and mirror
Other function, only provide the user the spectral information of sample.If user does not have the related rudimentary knowledge and phase of spectrology
The cooperation of algorithm is answered, the species or property of sample can not be differentiated.
The content of the invention
To solve the above problems, the present invention provides a kind of intelligent handhold spectrometer based on cloud data, the device can be by number
According to upload, and analysis and identification is carried out to sample, it is real-time, detection is accurate, is easy to carry, it is easy to use, being capable of extensive use
In every field.
Handheld spectrometer concrete scheme in the present invention is, including hardware device, mobile terminal system and server；Firmly
Part equipment includes optical module, control module, shell framework and power supply module；Optical module obtains the spectral information of sample, controls mould
Spectral information is converted into digital data transmission to mobile terminal system, mobile terminal system and spectral information is handled by block
Afterwards, server is sent data to, server calls mathematical modeling carries out analysis and identification to the data received, by analysis result
It is back to mobile terminal system.
Further, shell framework is provided with semiconductor laser exit portal, micro spectral probe entrance port, white-light emitting
Diode exit portal, button and charging battery cartridge.
Further, it is long touch the button can starting device, short-press button can trigger measurement, the vice-minister again in the case of opening of device
Touch the button cut-off power supply.
Further, it is saturating to include semiconductor laser module, micro spectral probe, white LED module and optically focused for optical module
Mirror, semiconductor laser module and white LED module are arranged at white light LEDs positioned at micro spectral probe both sides, collector lens respectively
Between module and sample.
Further, micro spectral probe includes diaphragm, grating, imaging sensor；Diaphragm is arranged on front side of grating, diaphragm
On be provided with optical entrance, imaging sensor is arranged at grating side.
Further, control module includes microcontroller, and be connected with microcontroller electric power management circuit, light source driving
Circuit, sequential control circuit, level shifting circuit, charging circuit and wireless transport module.
Further, mobile terminal system can receive simultaneously display data information, have hand-held spectrometer gain, change light source
Type and the function of adjustment micro spectral probe time for exposure.
Further, mobile terminal system has data prediction function, and pretreatment includes Denoising disposal, overexposure inspection
Survey, low exposure tests or characteristic wave bands are extracted；Mobile terminal system has standard items spectral manipulation function, standard items spectral manipulation
Including by sample will be trained according to mathematical modeling and itself optimization.
Further, mathematical modeling is BP neural network algorithm, genetic algorithm or Fisher linear classification algorithms.
The method that sample spectra information is obtained using Handheld spectrometer as described above, this method are comprised the following steps：
Step 1：Start spectrometer, and make to be matched with spectrometer on mobile terminal system；
Step 2：Light source is selected on mobile terminal system, sets hand-held spectrometer yield value and adjustment micro spectral to visit
The time for exposure of head；
Step 3：Sample is detected using hand-held spectrometer, the spectrum of sample meets after requiring, is uploaded；
Step 4：Selection standard product spectrum meets test request and then clicks on upload button, and selects to upload species；If
Selection standard product spectrum types, mobile terminal system carry out standard items spectral manipulation to spectral information, processing terminate after by data
Upload onto the server；If select testing sample spectrum types, after mobile terminal uploads onto the server spectral information, server
Call mathematical modeling to carry out analysis and identification to the data received, analysis result is back to mobile terminal system.
The intelligent handhold spectrometer of the present invention possesses network connecting function, and mobile terminal system can be controlled hand-held by software
Spectrometer, the data that hand-held spectrometer is surveyed can be also sent to server end by wireless network.Server end is using adaptive
Answer algorithm to analyze the spectroscopic data of input, and final realization is compared according to the spectral information of database internal standard product
The differentiation of sample type and property, its result will return to terminal device and be shown to user.
Compared with traditional spectrometer, patent of the present invention has small volume, light, simple to operate.The present invention is advantageous to non-
Spectrum professional carries out detection and analysis work out of doors, real-time, detection is accurate, is easy to carry, easy to use, Neng Gouguang
It is general to be applied to every field.By Internet of Things technology, database collects the spectral information of all kinds of standard items of user's measurement, expands
Database, optimized mathematical model and then obtains more powerful discriminatory analysis ability.
Brief description of the drawings
Fig. 1 is hand-held spectrometer and mobile terminal system and the data transfer schematic diagram of Cloud Server.
Fig. 2 is that hand-held spectrometer forms structure chart.
Fig. 3 is hand-held spectrometer control module functional diagram.
Fig. 4 is display and the operation interface of mobile terminal system.
Fig. 5 is that mobile terminal system uploads flow chart of the data to server.
Fig. 6 is pollen samples spectral detection result.
Fig. 7 is the result classified using Fisher algorithms to sample.
Embodiment
With reference to embodiment and accompanying drawing, the present invention is described in further detail, but the embodiment of this patent is unlimited
In this.
In the present embodiment, the fluorescence of sample can be excited by semiconductor laser or white light LEDs or obtain sample
Reflected light.Reflected light is collected by collector lens enters spectroscopic probe head, and data are wirelessly transmitted to by spectroscopic probe head after obtaining data
Mobile terminal system.Mobile terminal system sends data to server.Server calls mathematical modeling after receiving the data
Analysis and identification is carried out, and result is back to mobile terminal system.
As shown in figure 1, a kind of Handheld spectrometer, including hardware device, mobile terminal system (5), server (6).
Hardware device includes optical module (1), control module (2), shell framework (3) and power supply module (4).Optical module (1),
Control module (2) and power supply module (4) are fixed in shell mechanism.
Shell framework (3) includes light source portion and handle portion.Light source portion is provided with semiconductor laser exit portal (301), micro-
Type spectroscopic probe head entrance port (302) and white light emitting diode exit portal (303)；Handle portion is provided with button (304) and filled
Electric battery case (305).
Button (304) is arranged to non-self-lock-ing light touch type button (304), can start, triggers and close hardware device.Long-press is pressed
Button (304) can starting device, short-press button (304) then triggers measurement, and length touches the button (304) then again in the case of opening of device
Pass hull closure, cut off the electricity supply, all modules of closing control module (2) and its control.
Optical module (1) include semiconductor laser module (101), micro spectral probe (102), white LED module (103) with
And collector lens (104).Semiconductor laser module (101) in optical module (1) can provide exciting light, excite fluorescent, lead to
Cross white LED module (103) for measurement sample reflectance spectrum wideband light source is provided, by micro spectral pop one's head in (102) detection sample
The fluorescence or reflectance spectrum of product.Semiconductor laser module (101) and white LED module (103) are visited positioned at micro spectral respectively
Head (102) both sides, collector lens (104) are arranged at white LED module (103) between sample.Sample is emitted at a certain angle
Product (105), and fluorescence caused by sample or reflected light will be collected by collector lens (104), be popped one's head in into micro spectral
(102).In the present embodiment, the light sent the photograph at an acute angle of semiconductor laser module (101) and white LED module (103)
It is mapped on sample.Spectral information is converted into data signal and is recorded and sent by the control module in optical module.
Described semiconductor laser module (101) is the shorter semiconductor laser module of output wavelength, effectively to excite
The fluorescence of sample；Its power should be milliwatt, in order to avoid causing to damage to sample, and prevent from damaging human eye.
The light of collector lens (104) noise spectra of semiconductor lasers launch wavelength has high reflection plated film, prevents Qiang Guangjin in a subtle way
Type spectroscopic probe head (102) disturbed test result.
In the present embodiment, semiconductor laser module (101) selection output wavelength is 410nm, and power output is 10mW's
Semiconductor laser is as fluorescence excitation light source；Selection shore pine C12666MA micro spectrals probe is made in micro spectral probe (102)
For spectrographic detection device；White LED module (103) selects white light LEDs lamp beads of the 200mW with prefocus cup as reflected light test light
Source；Collector lens (104) uses resin convex lens of the focal length for 44mm.
Micro spectral probe (102) is the core component of spectrographic detection, can obtain complete spectrum letter in a certain broadband
Breath.Micro spectral probe (102) includes diaphragm (10202), grating (10203), charge coupling device CCD image sensor
(10204).Diaphragm (10202) is arranged on front side of grating (10203), and optical entrance is provided with diaphragm (10202), and electric charge lotus root is closed
Device image sensor CCD is arranged at grating (10203) side.When incident light (10201) is incident by the light of diaphragm (10202)
Mouth enters probe, is irradiated on grating (10203), and is divided by grating (10203).Then, the light of different wave length is anti-by grating
It is mapped at the diverse location of CCD (10204), by detection of CCD (10204) each pixel to different wavelengths of light, records each
The intensity of wavelength light, so as to obtain the spectral information in whole wave band.
In the present embodiment, the main control chip of control module (2) microcontroller uses STM32 single-chip microcomputers, control circuit bag
Electric power management circuit, light source driving circuit, sequential control circuit, level shifting circuit, charging circuit and peripheral circuit are included, and
Built-in wireless transmission function, for spectral information to be transferred into mobile terminal system or is directly transferred to server.This reality
Apply in example, wireless transmission function uses bluetooth module.Control module (2) can be connected by mobile terminal system and cloud server
Connect, can also directly be linked by the modules such as 2G, 3G, 4G that are not limited to carried with Cloud Server.
The microcontroller of control module controls light source by light source driving circuit.Microprocessor control Timing driver electrical equipment control
Level shifting circuit processed, level circuit give detector to provide power supply, after detector is nursed one's health signal, the data that will collect
It is transferred to by data acquisition module in microcontroller, in data transmission procedure, voltage reference circuit is to data acquisition module
Voltage be adjusted.Microcontroller controls the charging circuit of battery by hardware switch machine, and microcontroller is wireless by controlling
Transport module realizes transmission of the data to mobile terminal system.
Control module (2) reads the intensity of electric charge in each pixel from micro spectral probe (102), with ripple corresponding to pixel
A length of x-axis, its charge density are that information is described, pre-processes and transmitted by y-axis.
In the implementation case, the mobile phone of Android system is selected to select a notebook computer to make as mobile terminal system
For server end, hand-held spectrometer is communicated with bluetooth mode with mobile phone, and mobile phone is with Wi-Fi or 4G network modes and server
Communication.
As shown in figure 4, mobile terminal system can be used for receiving the data message for coming from hand-held spectrometer, and on screen
Show the data message.Mobile terminal system also has parameter setting function, and optional high-gain controls hand-held spectrometer to increase
Time for exposure of benefit, selection fluorescence spectrum change light source type and adjustment micro spectral probe (102) etc. is on device parameter
Setting.
Mobile terminal system can carry out Pretreated spectra before spectroscopic data is uploaded, its pre-process include Denoising disposal,
The processes such as overexposure detection, the extraction of low exposure tests, characteristic wave bands.The reaction energy of equipment is improved by the pretreatment to spectrum
Power, while ensure the data of upload server accurately and reliably and redundancy is low.
As shown in figure 5, after Pretreated spectra, mobile terminal system is uploaded according to the selection mode of user.User can
Selection uploads standard items spectrum or testing sample spectrum.If user's selection standard product spectrum is uploaded, data will be to train sample
Product form enters inputting mathematical model training collection, and mathematical modeling it will be trained according to its parameter and itself optimization.If with
Family selection is surveyed sample spectra and uploaded, and server first inputs data into test set, and runs mathematical modeling to input
Spectroscopic data carries out analysis and distinguishing, is then back to and differentiates result to mobile terminal system.
Mathematical modeling in the present embodiment is adaptive model of mind, and the data of sample can be trained to carry out by inputting
Autonomous optimization and amendment, can be, but not limited to be BP neural network algorithm, genetic algorithm, Fisher linear classification algorithms.The number
Learn model to compare with conventional spectrometers, substantial amounts of standard items spectrum is obtained in different time and place by different user, carried out
Big data is integrated, and can constantly strengthen the discriminatory analysis ability with optimized mathematical model, and then provide the user more preferable spectrum
Discriminatory analysis function, form benign cycle.
The Downloadable test data for being stored in server (6) of mobile terminal system, the test data include the light of sample
Spectrum information, testing time information, testing location information, test sample numbering and name information.
Test sample in the present embodiment uses lotus pollen, wild rose pollen and rape petal pollen.Such as Fig. 6 institutes
Show, be to obtain sample spectra information according to aforesaid operations step.Three kinds of pollen are subjected to spectral measurement, and answer measuring process 50
It is secondary, and respectively with standard items spectrum upload server；Server end is analyzed using Fisher algorithms by spectral information；Clothes
Business device calls the Fisher trained to classify and differentiate sample, and its result is as shown in Figure 7.Make three kinds using this kind of algorithm
Pollen can be distinguished effectively, and can accurately be differentiated, accuracy rate reaches 99%.
Hand-held spectrometer in the present embodiment is used for obtaining sample spectra information and carries out the tool that species or property differentiate
Body operating procedure is as follows：
(1) button (304) that long-press is held on spectrometer starts spectrometer；
(2) open the software on mobile terminal system and matched with spectrometer；
(3) light source is selected on mobile terminal system, spectrometer yield value is held and adjusts micro spectral probe (102)
Time for exposure；
(4) hand-held spectrometer is directed at sample, the switch that short-press is held on spectrometer carries out the spectral measurement of sample；
(5) the sample spectra curve shown on mobile terminal system screen, the point if spectrum meets test request are observed
Upload button is hit, and selects to upload species；
(6) if selection standard product spectrum types is uploaded, upload terminates after terminating；If selection is with testing sample
Spectrum types is uploaded, then startup of server mathematical modeling carries out analysis and identification to spectrum after uploading, and concurrent identification result returns
Return mobile terminal system；
(7) user can obtain the species of sample on mobile terminal system or the relevant information of property, test terminate.
The implementation of the present invention is not limited to this, according to the above of the present invention, is known using the ordinary skill of this area
Knowledge and customary means, under the premise of the above-mentioned basic fundamental thought of the present invention is not departed from, the present invention can also make other a variety of shapes
Modification, replacement or the change of formula, all fall within rights protection scope of the present invention.
Claims (10)
1. a kind of Handheld spectrometer, including hardware device, mobile terminal system and server；Hardware device include optical module,
Control module, shell framework and power supply module；It is characterized in that：Optical module obtains the spectral information of sample, and control module is by light
Spectrum information is converted into digital data transmission to mobile terminal system, after mobile terminal system is handled spectral information, by number
Analysis and identification is carried out to the data received, analysis result is back to according to sending to server, server calls mathematical modeling
Mobile terminal system.
2. according to the Handheld spectrometer in claim 1, it is characterised in that：Shell framework is provided with semiconductor laser outgoing
Mouth, micro spectral probe entrance port, white light emitting diode exit portal, button and charging battery cartridge.
3. according to the Handheld spectrometer in claim 2, it is characterised in that：It is long touch the button can starting device, short-press button can
Triggering measurement, grows the cut-off power supply that touches the button again in the case of opening of device.
4. according to the Handheld spectrometer in claim 1, it is characterised in that：Optical module includes semiconductor laser module, miniature
Spectroscopic probe head, white LED module and collector lens, semiconductor laser module and white LED module are located at micro spectral respectively
Probe both sides, collector lens are arranged between white LED module and sample.
5. according to the Handheld spectrometer in claim 1, it is characterised in that：Micro spectral probe includes diaphragm, grating, image
Sensor；Diaphragm is arranged on front side of grating, is provided with optical entrance on diaphragm, imaging sensor is arranged at grating side.
6. according to the Handheld spectrometer in claim 1, it is characterised in that：Control module includes microcontroller, and and micro-control
Device processed is connected electric power management circuit, light source driving circuit, sequential control circuit, level shifting circuit, charging circuit and wireless
Transport module.
7. according to the Handheld spectrometer in claim 1, it is characterised in that：Mobile terminal system can receive and display data letter
Breath, there is hand-held spectrometer gain, change light source type and the function of adjusting the micro spectral probe time for exposure.
8. according to the Handheld spectrometer in claim 7, it is characterised in that：Mobile terminal system has data prediction work(
Can, pretreatment includes Denoising disposal, overexposure detection, low exposure tests or characteristic wave bands extraction；Mobile terminal system has
Standard items spectral manipulation function, standard items spectral manipulation includes sample will be trained according to mathematical modeling and itself optimization.
9. according to the Handheld spectrometer in claim 1, it is characterised in that：Mathematical modeling is BP neural network algorithm, heredity
Algorithm or Fisher linear classification algorithms.
10. obtaining the method for sample spectra information using the Handheld spectrometer in claim 1-9 any claims, it is special
Sign is that this method comprises the following steps：
Step 1：Start spectrometer, and make to be matched with spectrometer on mobile terminal system；
Step 2：Light source is selected on mobile terminal system, hand-held spectrometer yield value is set and adjusts micro spectral probe
Time for exposure；
Step 3：Sample is detected using hand-held spectrometer, the spectrum of sample meets after requiring, is uploaded；
Step 4：Selection standard product spectrum meets test request and then clicks on upload button, and selects to upload species；If selection
Standard items spectrum types, mobile terminal system carry out standard items spectral manipulation to spectral information, and processing uploads data after terminating
To server；If select testing sample spectrum types, after mobile terminal uploads onto the server spectral information, server calls
Mathematical modeling carries out analysis and identification to the data received, and analysis result is back into mobile terminal system.
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| CN201711007073.3A CN107860473A (en) | 2017-10-25 | 2017-10-25 | A kind of intelligent handhold spectrometer based on cloud data |
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| CN113295641A (en) * | 2021-05-26 | 2021-08-24 | 河北金沙河面业集团有限责任公司 | Method for rapidly measuring germination rate of wheat |
| CN114295573A (en) * | 2021-12-22 | 2022-04-08 | 海南聚能科技创新研究院有限公司 | Spectrum detector |
| CN116026803A (en) * | 2023-01-03 | 2023-04-28 | 江南大学 | Food contamination detecting system based on handheld food residue detecting equipment |
| CN116026803B (en) * | 2023-01-03 | 2024-02-02 | 江南大学 | Food contamination detecting system based on handheld food residue detecting equipment |
| CN117054396A (en) * | 2023-10-11 | 2023-11-14 | 天津大学 | Raman spectrum detection method and device based on double-path multiplicative neural network |
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