CN101949824A - Method and system device for detecting commodity according to spectral information of substance - Google Patents
Method and system device for detecting commodity according to spectral information of substance Download PDFInfo
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Abstract
The invention provides a method and a system device for detecting a commodity according to the spectral information of a substance. The method comprises the following steps of: carrying out spectral measurement on a commodity sample by adopting a spectral means, establishing a spectral database and carrying out mark registration for the commodity sample; issuing an identity identification mark, such as a one-dimensional bar code, a two-dimensional bar code and a radio-frequency identification label (RFID), to the registered commodity; storing sample spectral information, measurement condition information and commodity information of the sample per se by utilizing the identity identification mark of the commodity; and setting a testing system by recognizing and reading the identity identification mark of the target commodity and utilizing data, such a read measurement condition and the like, so as to carry out spectral measurement on the target commodity under the same testing means, and carrying out comparative analysis on the obtained spectral information of the target commodity and the corresponding sample spectral information of the commodity. Thus, the invention can be used for effectively acknowledging whether an onsale commodity conforms to the quality of the registered sample or not and simultaneously can be used for detecting some unauthorized substances.
Description
Technical field
The present invention relates to a kind of method and system device that commodity is detected according to the spectral information of material.More particularly, the present invention relates generally to the use spectrographic method, set up the spectra database in the commodity in advance per sample, by detection to the target commodity, and compare, and whether change recognition objective commodity and checking target commodity with respect to its corresponding sample spectra by the spectrum of judging the target commodity with spectra database.
Background technology
Food, drug safety are the problems of being paid much attention in the world.The wide range that food, drug safety detect mainly is that wherein objectionable impurities and additive materials etc. are analyzed at food, thereby judges whether the content of objectionable impurities and additive materials meets national safety standard in this food.Medicine or other products are also in the face of similar circumstances.
Therefore, consider fast, reliably and accurately to carry out that objectionable impurities, additive exceed standard etc. and detect to become extremely important, especially food, medicine.The method that has been applied at present the food safety detection analysis mainly comprises: chromatography (gas phase, liquid phase), chromatogram one mass spectrometry, enzyme linked immunosorbent assay etc.But these methods need be carried out specimen preparation, sample out that the general sense cycle of assay is very long, check program is complicated, detect the cost costliness, reviewer's specialized capability is had relatively high expectations from sample, thereby limited the on-the-spot detection and the efficiency of test of being open to the custom.At pharmaceutical preparations also is similar situation.
Moreover because type of merchandize is numerous and diverse, number reaches ten million above meter.Traditionally, for different commodity, be example with food, its measuring means varies, even reaches each actuals employing only to its effective national test stone.
Present existing various spectral analysis technique and equipment, basically be further limited in breadboard range of application, even the equipment that some are portable, for example portable infrared, portable Raman is because its volume causes resolution low (light-dividing device is burnt long limited) for a short time, and because the portable CCD of simple refrigeration cooling that can only adopt is as detection means, cause signal to noise ratio (S/N ratio) not high, when carrying out the potpourri analysis, the feasible analysis to commodity to be checked of low detection limit is difficult to effectively discern.
Summary of the invention
An object of the present invention is to provide a kind of spectral information according to material to the method that commodity detect, may further comprise the steps: (1) adopts the spectrum means that the sample of commodity is carried out spectral measurement, obtains the sample spectra of measuring under described spectrum means; (2) set up spectra database, be used to store described product sample information and described sample spectra information; (3) the described commodity that detect through sampling are provided chartered identification sign, described identification sign stores described sample message; (4) identification of described target commodity is distinguished, from described spectra database, extracted described sample spectra information according to described sample message; (5) set test macro according to the described sample spectra information of extracting, described target commodity are carried out spectral measurement under described spectrum means, to obtain the spectrum of described target commodity; The spectrum and the described sample spectra of the described target commodity that (6) will obtain compare analysis, analyze described target commodity whether with described sample basically identical.Method of the present invention can be carried out multiple spectral measurement to the sample of commodity, utilizes this multiple spectrum can be used for analyzing the major component and the micro constitutent formation of commercial material; Secondly, set up spectra database and register storage multiple spectrum of described sample and described merchandise news, with the merchandise news of described sample, pairing spectral information, content measurement when building the storehouse and test condition etc. all are stored in the identification sign in spectra database, the target commodity that described identification sign offers corresponding listing transaction use; The 3rd, when commodity are detected, after reading the described identification sign of target commodity, from described spectra database, extract the special spectrum in the described sample, according to spectrum information and content measurement and the test condition in the described sample that extracts, corresponding testing apparatus is carried out multispectral measurement to the target commodity in the startup test macro, obtain with described sample multispectral accordingly, described the multispectral of storehouse of building from the multispectral and spectra database that the target commodity obtain by test compared, reach these target commodity of check and on composition, whether be different from this former storehouse sample of building, whether conform to described this commodity raw sample to confirm described target commodity.
Second purpose of the present invention is based on deriving on first purpose of the present invention, that is: material composition method in a kind of analysis commodity to be detected is provided.The method comprises: the further spectral information of the predetermined substance of at least a debita spissitudo of storage in described spectra database comprises: the spectrum of the predetermined substance of described debita spissitudo, obtain the modeling algorithm of spectrum of predetermined substance of spectral measurement condition, the described debita spissitudo of identification of spectrum of the predetermined substance of described debita spissitudo; The spectral information of described specific predetermined substance is stored in the described identification sign; Identification to described target commodity is distinguished, and reads the spectral information of predetermined substance; Spectral information according to the predetermined substance of the described debita spissitudo that reads is set test macro, takes corresponding with it spectrum means to carry out spectral measurement to described target commodity, analyzes in the described target commodity whether contain described particular matter.This method can realize: (1) carries out multispectral measurement for various purified standard materials; Set up the spectra database of purified standard materials respectively according to variable concentrations; (2) utilize the standard spectrum database, the resulting spectrum of the measurement of described commodity is analyzed, obtain the composition of described commodity.
The 3rd purpose of the present invention is based on deriving on first purpose of the present invention and second purpose of the present invention, provide a kind of the detection whether to contain unauthorized substances in the commodity or detect the method that whether adjuvant exceeds standard in the commodity, the method comprises: in described spectra database further storage at least a in described sample the characteristic spectrum information of undiscovered particular matter, comprising: the characteristic spectrum of described particular matter, obtain the spectral measurement condition of the characteristic spectrum information of described particular matter, discern the modeling algorithm and the described particular matter in-line coding information of the characteristic spectrum information of described particular matter; With described particular matter in-line coding information stores in described identification sign; Identification to described target commodity is distinguished, and reads the characteristic spectrum information of described particular matter; Characteristic spectrum information according to the described particular matter that reads is set test macro, takes corresponding with it spectrum means to carry out spectral measurement to described target commodity, analyzes in the described target commodity whether contain described particular matter.
Employing can be carried out spectral measurement to the sample of commodity to be measured in the method described in first purpose of the present invention; Utilization is in the method described in second purpose of the present invention, spectrum with described commodity, utilize unauthorized substances standard spectrum in the spectra database, adjuvant standard spectrum that the spectrum of described commodity is analyzed, whether contain whether adjuvant exceeds standard in unauthorized substances or the affiliated commodity thereby obtain described commodity.
The 4th purpose of the present invention is in information such as the attribute of the described commodity of the direct storage of described identification sign, spectrum, more convenient detection method fast is provided, this method may further comprise the steps: employing spectrum means are carried out spectral measurement to the sample of commodity, obtain the sample spectra of measuring under described spectrum means; The described commodity that detect through sampling are provided chartered identification sign, and described identification sign stores described sample message and described sample spectra information; Identification to described target commodity is distinguished, and reads the information of described sample; Set test macro according to the described sample spectra information that reads, described target commodity are carried out spectral measurement in the subordinate section of described spectrum, obtain the spectrum of described target commodity; The spectrum of the described target commodity that obtain is compared analysis with corresponding described sample spectra, analyze described target commodity whether with described sample basically identical.
The 5th purpose of the present invention is based on deriving on first purpose of the present invention, second purpose, the 3rd order of the present invention and the 4th the purpose basis, a kind of a kind of system that is used for the quick identification commodity is provided, described target commodity have the identification sign, and described identification sign has stored the information such as attribute, spectral information, the content measurement when building the storehouse and test condition that comprise described target commodity.Described system comprises: a spectra database, comprise from the spectrum of the sample collecting of described target commodity, and the information of described target item property, spectral information, the content measurement when building the storehouse and test condition etc.; An identity recognition device is used to read the identification sign of described target commodity, with the attribute of discerning described target commodity, spectral information, content measurement when building the storehouse and test condition etc.; The spectrum test device is used for obtaining one or more spectrum from described target commodity; One cover is identification software relatively, be used for the spectrum that described target commodity are obtained and the spectrum of described sample and compare, with confirm described target commodity whether with the conforming to of described sample.
According to the present invention, set up the powerful spectra database of extensive stock on the one hand, simultaneously, set up and utilize the spectra database of various standard substances, can realize detecting at the specific particular spectral that material showed, and need not commodity are detected all sidedly, also simplify sensing range when having fixed necessary sensing range greatly, can just can realize various different commodity are carried out fast by a set of equipment thus, detect effectively, need not to carry out specimen preparation, and time that specimen preparation will cost a lot of money usually and cost, the time of both having saved also provides cost savings.On the other hand, effectively utilize identity recognizing technology, when reducing cost, also more effectively realize the automatic management of total system, for example the information by bar code reads, and to the detection content and the testing conditions of described commodity, all can realize the automatic setting of computing machine.Accordingly,, can comprise a plurality of spectrometers, thereby can select different spectrometers to carry out spectral measurement at different commodity according to system and device of the present invention.According to the present invention, also the spectrum of concentration of the extraordinary material of censorship commodity sample directly can be deposited in the corresponding identification sign, so then need not set up huge database, and the corresponding spectrum that is obtained when detecting the target commodity can directly compare with the spectrum that exists identity to know in the sign, significantly reduces workload and cost.
Description of drawings
Fig. 1 is the block scheme of first kind of form of implementation of the inventive method;
Fig. 2 a is the block scheme of a preferred embodiment of first kind of form of implementation of the inventive method;
Fig. 2 b is the exploded block diagram of step 6;
Fig. 3 a is the block scheme of second preferred embodiment of first kind of form of implementation of the inventive method;
Fig. 3 b is the exploded block diagram of step 6;
Fig. 4 is the block scheme of second kind of form of implementation of the inventive method;
Fig. 5 a is the block scheme of a preferred embodiment of second kind of form of implementation of the inventive method;
Fig. 5 b is the exploded block diagram of step 6;
Fig. 6 a is the block scheme of second preferred embodiment of second kind of form of implementation of the inventive method;
Fig. 6 b is the exploded block diagram of step 6;
Fig. 7 is the simplified structure block diagram of system and device of the present invention;
Fig. 8 is the simplified structure block diagram of a kind of preferred implementing form of system and device of the present invention;
Embodiment
Described below with reference to different embodiments of the present invention.Those skilled in the art just can not know and can realize technical characterictic of the present invention and goal of the invention by multiple different alternate embodiments by creative work, therefore, below described embodiment only be descriptive and nonrestrictive.
Fig. 1 is the block scheme of a kind of form of implementation of the inventive method.As shown in the figure, the sample of the step 100 pair commodity that will go on the market carries out spectral measurement.When carrying out spectral measurement, can select in the spectrum means such as infrared spectroscopy, Raman spectrum analysis method and fluorescence spectrum analysing method one or more to measure, thus but also one or more in the spectral informations such as the absorption spectra of collected specimens, Raman spectrum and fluorescence Spectra.Step 200 is to set up spectra database, and one or more spectral informations registrations store in the sample that step 100 is obtained, and also the sample message of commodity is stored simultaneously.Sample message can comprise manufacturer's information, the place of production and/or date of manufacture etc.Sample spectra information comprises the spectral measurement condition of sample spectra, sample spectra, the information such as modeling algorithm of the described sample spectra of identification, constitutes the staple of spectra database.Step 300 is the sample messages with sample, is stored in the identification sign, also the whiles such as spectral species and/or spectrum test condition also can be stored in the identification sign, and such sign will be used on the target commodity of listing from now on.Read the identification sign, after getting access to information such as merchandise news, spectral species and test condition, step 400 is extracted corresponding sample spectra to spectra database, meanwhile, system's spectral species under the spectrum per sample calls testing apparatus automatically, and the same test condition enactment testing apparatus when building the storehouse according to these commodity.Step 500 pair target commodity carry out the spectral measurement of same spectra means, obtain the spectral information of target commodity.Step 600 be the target commodity that will obtain by step 500 spectrum be stored in that corresponding sample spectra compares analysis in the spectra database, calculate the commodity likelihood, if likelihood then can draw the conclusion that quality conforms in the scope that allows; If likelihood surpasses the scope that allows, obviously there are quality problems in the commodity of listing, and for example food might be expired food then, and perhaps food does not conform to.Thereby method of the present invention is to carry out modeling, detection at the spectral signature of commodity can reach by the identification characteristic spectrum and reach quick identification to commodity, can certainly utilize the standard substance spectra database of having set up and compositions all in the commodity is carried out check and analysis.With food is example, can detect objectionable impurities, adjuvant equal size in the food.
The spectrum of sample of the present invention and target commodity can be preferably by infrared analysis and obtain, and sets up the ir data storehouse of sample.Because the physical form of commodity has diversity, solid, liquid, colloid, gas, powder or the like are for example arranged, so this ir data storehouse part includes but not limited to: transmission absorption spectrum, reflection-absorption spectrum, back scattering absorption spectra, diffuse reflection absorption spectra, attenuated total reflection absorption spectra, or the like.
The spectrum of sample of the present invention and target commodity also can be preferably by the Raman analysis method and obtain, and sets up the Raman spectrum data storehouse of sample.
The spectra database of target commodity and sample can also comprise the fluorescence data storehouse, because adopt INFRARED SPECTRUM, Raman spectrum and fluorescence Spectra, or single employing or combination adopt and can make comprehensive description to material property, and make the identification of material be able to quick realization.
Though below only enumerated three kinds of spectrographic method, the widespread use of various spectrographic method after reading the present invention, obviously also can find the appropriate light Zymography to be applied among the present invention as those of ordinary skill in the art.Therefore, method of the present invention is not limited to this three kinds of spectrographic method, also can comprise the various spectrographic method of other suitable the inventive method.
In a preferred embodiment, the identification sign can be selected one dimension or two-dimension code for use.Use one dimension sign indicating number (bar code), its advantage is: (1) reading speed is very fast, is equivalent to 40 characters of per second; (2) cost is low, is easy to make.The simple structure of one dimension sign indicating number identification equipment, easy to use.(3) practical flexibly.Bar code symbol can be imported by manual keyboard, also can form recognition system with relevant devices and realize robotization identification, also can connect the automatic management that realizes total system with other opertaing devices.And select two-dimension code for use, and comprise QR sign indicating number, color bar code etc., for bar code, it is more that it can put down in writing data volume; And can put down in writing more complicated data, such as picture etc.The identification sign also can be preferably RFID tag (radio frequency identification RFID), and it can hold more multicapacity, and is difficult to duplicate, and has higher anti-puppet, and communication distance is long, and environmental change is had higher suffertibility, can read a plurality of labels simultaneously.Certainly, in the present invention, also can select other effective identification signs.
But the spectrum of target item and sample preferred surface again strengthens the Raman scattering method, because when the molecule of some materials is adsorbed to coarse metal surfaces such as gold, silver, their Raman line intensity can greatly be strengthened.
Fig. 2 a is the block scheme of first preferred embodiment of the inventive method.Fig. 2 b is the exploded block diagram of step 6.Step 200 is to set up the predetermined substance spectral information that spectra database has also stored debita spissitudo, comprises the spectral measurement condition of specific speciality spectrum, predetermined substance spectrum, the information such as modeling algorithm of identification predetermined substance spectrum.This predetermined substance is generally pure material, alcohol for example, and its Raman peaks 884cm-1 can be used as the vaild evidence that material alcohol exists, and it would, of course, also be possible to is a potpourri.Step 300 is that the predetermined substance spectral information also is stored in the identification sign.Step 400 is extracted corresponding sample spectra to spectra database, yet will extract the spectral information of predetermined substance, system's spectral species under the spectrum per sample calls testing apparatus automatically, and the same test condition enactment testing apparatus when building the storehouse according to these commodity.Step 500 spectroscopy equipment carries out the spectral measurement of same spectra means to the target commodity, obtains the spectral information of target commodity.Step 600 be the target commodity that will obtain by step 500 spectrum be stored in that corresponding sample spectra compares analysis in the spectra database, also will analyze the concentration of some predetermined substance.Shown in 2b, whether step 601 evaluating objects commodity conform to sample, also will compare analysis to some predetermined substance (as, requisite composition or exceed standard health is constituted certain composition that threatens) simultaneously.Step 602 will be analyzed it and whether have some predetermined substance, and whether the concentration that step 603 will be analyzed predetermined substance is suitable.
Fig. 3 a is the block scheme of second preferred embodiment of the inventive method.Fig. 3 b is the exploded block diagram of step 6.Step 200 be set up spectra database also stored at least a in sample the characteristic spectrum information of undiscovered particular matter, comprise the modeling algorithm of the characteristic spectrum information of the characteristic spectrum of particular matter, the spectral measurement condition of obtaining the characteristic spectrum information of particular matter, identification particular matter.Particular matter can be some composition of forbidding or adjuvants, is generally pure material, also can be potpourri.The 300th, the particular matter spectral information also is stored in the identification sign.Step 400 is extracted corresponding sample spectra to spectra database, yet will extract the spectral information of particular matter, system's spectral species under the spectrum per sample calls testing apparatus automatically, and the same test condition enactment testing apparatus when building the storehouse according to these commodity.Step 500 spectroscopy equipment carries out the spectral measurement of same spectra means to the target commodity, obtains the spectral information of target commodity.Step 600 be the target commodity that will obtain by step 500 spectrum be stored in that corresponding sample spectra compares analysis in the spectra database, also will analyze some particular matter.Shown in 2b, whether step 601 evaluating objects commodity conform to sample, simultaneously also will to whether have some particular matter (as, some constitute certain additive that threatens to health) compare analysis.Step 602 will be analyzed it and whether have some particular matter, and whether the concentration that step 603 will be analyzed particular matter is suitable.
As shown in Figure 4, the sample of the step 100 pair commodity that will go on the market carries out spectral measurement.When carrying out spectral measurement, can select in the spectrum means such as infrared spectroscopy, Raman spectrum analysis method and fluorescence spectrum analysing method one or more to measure, thus but also one or more in the spectral informations such as the absorption spectra of collected specimens, Raman spectrum and fluorescence Spectra.Step 200 is that one or more spectral informations of the sample that obtains directly are stored in the identification sign, also the sample message of commodity is stored in the identification sign simultaneously.Sample message can comprise manufacturer's information, the place of production and/or date of manufacture etc.Sample spectra information comprises the spectral measurement condition of sample spectra, sample spectra, the information such as modeling algorithm of the described sample spectra of identification, constitutes the staple of spectra database.Step 300 is to read the identification sign, after getting access to information such as merchandise news, spectral species and test condition, step 400 is called testing apparatus automatically according to the sample spectra of reading to carry, and the same test condition enactment testing apparatus when building the storehouse according to these commodity, the target commodity are carried out the spectral measurement of same spectra means, obtain the spectral information of target commodity.Step 500 be the target commodity that will obtain by step 400 spectrum be stored in that corresponding sample spectra compares analysis in the spectra database, calculate the commodity likelihood, if likelihood then can draw the conclusion that quality conforms in the scope that allows; If likelihood surpasses the scope that allows, obviously there are quality problems in the commodity of listing, and for example food might be expired food then, and perhaps food does not conform to.Thereby method of the present invention is to carry out modeling, detection at the spectral signature of commodity can reach by the identification characteristic spectrum and reach quick identification to commodity, can certainly utilize the standard substance spectra database of having set up and compositions all in the commodity is carried out check and analysis.With food is example, can detect objectionable impurities, adjuvant equal size in the food.
The spectrum of sample of the present invention and target commodity can be preferably by infrared analysis and obtain, and sets up the ir data storehouse of sample.Because the physical form of commodity has diversity, solid, liquid, colloid, gas, powder or the like are for example arranged, so this ir data storehouse part includes but not limited to: transmission absorption spectrum, reflection-absorption spectrum, back scattering absorption spectra, diffuse reflection absorption spectra, attenuated total reflection absorption spectra, or the like.
The spectrum of sample of the present invention and target commodity also can be preferably by the Raman analysis method and obtain, and sets up the Raman spectrum data storehouse of sample.
The spectra database of target commodity and sample can also comprise the fluorescence data storehouse, because adopt INFRARED SPECTRUM, Raman spectrum and fluorescence Spectra, or single employing or combination adopt and can make comprehensive description to material property, and make the identification of material be able to quick realization.
Though below only enumerated three kinds of spectrographic method, the widespread use of various spectrographic method after reading the present invention, obviously also can find the appropriate light Zymography to be applied among the present invention as those of ordinary skill in the art.Therefore, method of the present invention is not limited to this three kinds of spectrographic method, also can comprise the various spectrographic method of other suitable the inventive method.
In a preferred embodiment, the identification sign can be selected one dimension or two-dimension code for use.Use one dimension sign indicating number (bar code), its advantage is: (1) reading speed is very fast, is equivalent to 40 characters of per second; (2) cost is low, is easy to make.The simple structure of one dimension sign indicating number identification equipment, easy to use.(3) practical flexibly.Bar code symbol can be imported by manual keyboard, also can form recognition system with relevant devices and realize robotization identification, also can connect the automatic management that realizes total system with other opertaing devices.And select two-dimension code for use, and comprise QR sign indicating number, color bar code etc., for bar code, it is more that it can put down in writing data volume; And can put down in writing more complicated data, such as picture etc.The identification sign also can be preferably RFID tag (radio frequency identification RFID), and it can hold more multicapacity, and is difficult to duplicate, and has higher anti-puppet, and communication distance is long, and environmental change is had higher suffertibility, can read a plurality of labels simultaneously.Certainly, in the present invention, also can select other effective identification signs.
But the spectrum of target item and sample preferred surface again strengthens the Raman scattering method, because when the molecule of some materials is adsorbed to coarse metal surfaces such as gold, silver, their Raman line intensity can greatly be strengthened.
With reference to Fig. 5 a and Fig. 5 b, step 200 is the predetermined substance spectral informations that stored debita spissitudo in the identification sign, comprises the spectral measurement condition of specific speciality spectrum, predetermined substance spectrum, the information such as modeling algorithm of identification predetermined substance spectrum.This predetermined substance is generally pure material, alcohol for example, and its Raman peaks 884cm-1 can be used as the vaild evidence that material alcohol exists, and it would, of course, also be possible to is a potpourri.Step 300 will read the predetermined substance spectral information of sample spectra information and debita spissitudo when recognition identification sign.Step 400 is called testing apparatus automatically according to the information that step 300 reads, and the same test condition enactment testing apparatus when building the storehouse according to these commodity, obtains the spectral information of target commodity.The spectrum of the target commodity that step 500 will obtain by step 400 be stored in that corresponding sample spectra compares analysis in the spectra database, also will analyze the concentration of some predetermined substance.Shown in 5b, whether step 501 evaluating objects commodity conform to sample, also will compare analysis to some predetermined substance (as, requisite composition or exceed standard health is constituted certain composition that threatens) simultaneously.Step 502 will be analyzed it and whether have some predetermined substance, and whether the concentration that step 503 will be analyzed predetermined substance is suitable.
With reference to Fig. 6 a and Fig. 6 b, step 200 be in identification sign, also stored at least a in sample the characteristic spectrum information of undiscovered particular matter, comprise the modeling algorithm of the characteristic spectrum information of the characteristic spectrum of particular matter, the spectral measurement condition of obtaining the characteristic spectrum information of particular matter, identification particular matter.Particular matter can be some composition of forbidding or adjuvants, is generally pure material, also can be potpourri.Step 300 recognition identification sign reads the corresponding sample spectra and the spectral information of particular matter.Step 400 is called testing apparatus according to the information that step 300 reads, and the same test condition enactment testing apparatus when building the storehouse according to these commodity, and the target commodity are carried out the spectral measurement of same spectra means, obtains the spectral information of target commodity.Step 500 be the target commodity that will obtain by step 400 spectrum be stored in that corresponding sample spectra compares analysis in the spectra database, also will analyze some particular matter.Shown in 6b, whether step 501 evaluating objects commodity conform to sample, simultaneously also will to whether have some particular matter (as, some constitute certain additive that threatens to health) compare analysis.Step 502 will be analyzed it and whether have some particular matter, and whether the concentration that step 503 will be analyzed particular matter is suitable.
Fig. 3 is the simplified structure block diagram of a kind of form of implementation of system and device of the present invention.As scheme mark, system and device according to the present invention comprises identity recognition device 200, obtains the device 300 of spectrum, spectrum unscrambling and material discriminant software system 400, spectra database 500, data entry unit 600 and light source 700.Spectra database 500 comprises the characteristic spectrum of the commodity sample with identification sign, and the information of item property, spectrum class and condition determination etc.The attribute information of the target commodity 100 that spectrum unscrambling and material discriminant software system 400 can read according to identification identity device 200, transfer corresponding sample spectra from spectra database 500, and according to the spectral species of reading and test condition setting spectrometer 302 and light source 700, spectrometer 302 is measured the spectrogram of target commodity 100, spectrum unscrambling and material discriminant software system 400 compare the spectrum of the sample deposited in the spectrum of target commodity 100 and the spectra database 500, with the concentration of one or more predetermined substances of confirming target commodity 100 whether with the conforming to of sample.
System and device of the present invention, spectrum unscrambling and material discriminant software system 400 more preferably comprise a computing machine, are included in the described sample spectra that comprises in characteristic spectrum in the target commodity 100 that device computer run, that will obtain spectrum 300 obtains and the described spectra database and compare program.
Spectra database 500 further also can comprise the characteristic spectrum beyond the sample spectra.This situation can be understood as NF other materials bad, harmful or the unsuitable composition of concentration in the sample.When carrying out the characteristic spectrum comparison, obtain the device 300 of spectrum equally and will set corresponding testing apparatus and test condition, target commodity 100 are carried out spectral measurement, draw corresponding spectrum according to the classification and the test condition of characteristic spectrum.Whether spectrum unscrambling and material discriminant software system 400 compare the spectrum and the described characteristic spectrum of target commodity 100, suitable with the concentration of some predetermined substance of confirming described target commodity.
System and device of the present invention, the device 300 that obtains spectrum can be preferably and comprise an infrared spectrometer, to obtain the infrared spectrum of target commodity 100.The device 300 that obtains spectrum also can preferably be taken as and comprise a Raman spectrometer, and is preferably the Raman spectrum that obtains target commodity 100 by resonance Raman spectroscopy analytic approach or surface-enhanced Raman effects analytic approach.The device 300 that obtains spectrum can be preferably and comprise a fluorescence spectrophotometer, to obtain the fluorescence spectrum of target commodity 100.Corresponding, sample spectra can comprise infrared spectrum, Raman spectrum and/or fluorescence spectrum.
In the present invention, Raman spectrometer comprises a mechanism that is used to generate the excitation beam of radiation, comprises one or more semiconductor lasers.A plurality of semiconductor lasers can be provided with different test conditions according to the information that identification 200 is read.So just, can realize of the detection of an equipment to multiple commodity.
According to system and device of the present invention, identity recognition device can be preferably bar code recognition equipment or radio frequency identification read-write equipment (RFID).Accordingly, identification tag can be preferably one-dimensional bar code, two-dimensional bar or RFID tag (RFID).
In further preferred embodiment, system and device of the present invention also comprises a data input device 600.Data entry unit 600 can be imported merchandise news, comprises trade name, manufacturer etc.Like this at there not being identity to know target commodity label, that do not register stored sample spectrum, can be by the relevant merchandise news of data entry unit 600 inputs, be sent to spectrum unscrambling and material discriminant software system 400 then, spectrum unscrambling and material discriminant software system 400 are after spectra database 500 extracts the specific substance concentration spectrum of identical category commodity, start the device 300 that obtains spectrum and excite corresponding light intensity and wavelength that the target commodity are carried out spectral measurement, carry out spectrum more relatively.
Fig. 4 is the simplified structure block diagram of the another form of implementation of system and device of the present invention.As shown in the figure, system and device of the present invention comprises identity recognition device 200, obtains the device 300 of spectrum, spectrum unscrambling and material discriminant software system 400, spectra database 500, data entry unit 600, array of source 700.Spectra database 500 includes other spectrum of various material types, as infrared spectrum, Raman spectrum and fluorescence spectrum etc., be the characteristic spectrum of gathering from commodity sample with identification sign, and the information of item property, spectrum class and test condition.The attribute information of the target commodity 100 that spectrum unscrambling and material discriminant software system 400 can read according to identification identity device 200, transfer corresponding sample spectra from spectra database 500, and the classification of characteristic spectrum and test condition set corresponding testing apparatus and test condition, sends corresponding setting signal to device 300 that obtains spectrum and light source 700.In a preferred embodiment, the device 300 that obtains spectrum comprises a plurality of spectrometers: infrared spectrometer 302, Raman spectrometer 303 and fluorescence spectrophotometer 304.Spectrometer selects one or more can measure the character of commodity as required and decide.Spectrum unscrambling and material discriminant software system 400 spectrum with target commodity 100 compare with the spectrum of corresponding sample in the spectra database 500, with the spectrum of confirming target commodity 100 whether with the conforming to of sample spectra.
In a preferred embodiment, relatively control device 400 comprises a computing machine, be included in computer run, spectrum unscrambling and material discriminant software system algorithm and program, after computing machine is accepted the attribute signal of the target commodity 100 that read from identity recognition device 200, the device 300 that obtains spectrum is set obtains spectrum in the target commodity 100.
System and device of the present invention, sample spectra and target commodity spectrum are preferably by acquisitions such as infrared spectroscopy, Raman spectrum analysis method, fluorescence spectrum analysing methods.Select which kind of analytic approach, will decide according to the characteristic of commodity.
In further preferred embodiment, Raman spectrometer 303 is preferably and comprises a mechanism that is used to generate the excitation beam of radiation, comprises one or more semiconductor lasers.A plurality of semiconductor lasers can be according to the laser beam of different commodity emission different capacities and wavelength.So just, can realize of the detection of an equipment to multiple commodity.
System and device of the present invention, the identification sign is preferably one dimension, two-dimensional bar, and identity recognition device 200 can be preferably bar code recognition equipment.In another preferred embodiment, the identification sign is preferably RFID tag (RFID), and identity recognition device 200 is preferably radio frequency identification read-write equipment.
In further preferred embodiment, system and device of the present invention also comprises a data input device 600.Data entry unit 600 can be imported merchandise news, comprises trade name, manufacturer etc.Like this at there not being identity to know target commodity label, that do not register stored sample spectrum, can be by the relevant merchandise news of data entry unit 600 inputs, be sent to spectrum unscrambling and material discriminant software system 400 then, spectrum unscrambling and material discriminant software system 400 are after spectra database 500 extracts the specific substance concentration spectrum of identical category commodity, start the device 300 that obtains spectrum and excite corresponding light intensity and wavelength that the target commodity are carried out spectral measurement, carry out spectrum more relatively.
To the actual measurement of extensive stock the time, because the composition that contains in the commodity is a lot, the spectrum that actual measurement obtains will more complicated, may comprise the peak that much derives from heterogeneity, also might contain the peak position that some derive from noise.The scheme that the present invention's selection compares at characteristic spectrum.Feature extraction in the technology such as this contrast scheme and fingerprint recognition is similar with coupling, for example in the fingerprint image recognition technology: the feature that at first extracts fingerprint image, and then actual measurement fingerprint image characteristics and database of fingerprint characteristics of image compared, thereby judge whether survey fingerprint has registered and put on record in database.Therefore, native system is in the comparison process of implementing characteristic spectrum, at first to set up spectra database, and then extract the characteristic spectrum of each test substance, survey the contrast of characteristic spectrum in characteristic spectrum and the database when carrying out actual test again in system according to the spectrum correspondence.
In the present invention, the spectrum to spectra database requires comprehensive and accurate.For reducing the influence of environmental impact factor to data, when setting up database, the environment in the time of should as far as possible guaranteeing the database test is approaching with the actual measurement environment.Spectra database comprises the spectrum of each material pure sample, also comprises the spectrum of each material variable concentrations, comprises the characteristic spectrum of potpourri and the characteristic spectrum of pure material material equally.
The spectroscopic analysis methods of predetermined substance in each sample in the spectra database is answered consistent with the spectrographic method to the target commodity.
In the present invention, at the spectrum of every kind in spectra database test substance pure sample, and the Raman spectrum of every kind of each concentration of test substance, all needing to extract its characteristic spectrum, the molecular structure of its feature and material itself has direct relation.When extracting the characteristic spectrum of actual test Raman spectrum, be reference with the characteristic spectrum in the spectra database, the characteristic parameter unanimity that both extract is to guarantee the reliability of comparing result.
The present invention owing to taked the method for identification, comprises the recognition technology of selecting one dimension, two-dimension code or electronic tag for use when carrying out the spectrum contrast, every kind of its contrasting region of commodity is also corresponding definite, so its contrast is pointed.Characteristic matching in the technology such as this and fingerprint recognition is had any different, and characteristic matching generally need be carried out wide area search in these technology.Therefore the characteristic spectrum contrast in the native system can be finished in very short time.
Method and system device according to detection commodity of the present invention, can realize fast, simple, green non-pollution, highly sensitive detection, thereby realize that aspect practicability one of detection method and instrument is than quantum jump, the soverlay technique field is wide, especially be applied in food, medicine field, can solve food, drug safety problem to a great extent.Certainly, the present invention also can be applicable to the detection of drugs, the detection of products such as jewel, jewelry.
In above-mentioned description, new characteristic of the present invention and advantage are fully disclosed.Yet this is open only to be illustrative in many aspects, rather than restrictive.On the basis disclosed herein, those skilled in the art fully can be under the situation that does not exceed the scope of the invention, in detail or the layout aspect change, comprise the combination of various feature and advantage of the present invention or separately use.
Claims (46)
- One kind according to the spectral information of material to the method that commodity detect, may further comprise the steps:(1) employing spectrum means are carried out spectral measurement to the sample of commodity, obtain the sample spectra of measuring under described spectrum means;(2) set up spectra database, be used to store described sample message and described sample spectra information;(3) the described commodity that detect through sampling are provided chartered identification sign, described identification sign stores described sample message;(4) identification of described target commodity is distinguished, from described spectra database, extracted described sample spectra information according to described sample message;(5) set test macro according to the information of the described sample that extracts, described target commodity are carried out spectral measurement under described spectrum means, to obtain the spectrum of described target commodity;The spectrum and the described sample spectra of the described target commodity that (6) will obtain compare analysis, analyze described target commodity whether with described sample basically identical.
- 2. the spectral information according to material as claimed in claim 1 is characterized in that the method that commodity detect, further may further comprise the steps:(7) the further spectral information of the predetermined substance of at least a debita spissitudo of storage in described spectra database, comprise the predetermined substance of debita spissitudo spectrum, obtain the modeling algorithm of spectrum of predetermined substance of spectral measurement condition, the described debita spissitudo of identification of spectrum of the predetermined substance of described debita spissitudo;(8) spectral information with the predetermined substance of described debita spissitudo is stored in the described identification sign;(9) identification of described target commodity is distinguished, read the spectral information of the predetermined substance of described debita spissitudo;(10) set test macro according to the spectral information of the predetermined substance of the described debita spissitudo that reads, take corresponding with it spectrum means to carry out spectral measurement, analyze in the described target commodity whether contain described predetermined substance described target commodity.
- 3. the spectral information according to material as claimed in claim 2 is characterized in that to the method that commodity detect further may further comprise the steps: whether the concentration of analyzing the described predetermined substance that contains in the described target commodity is suitable.
- 4. the spectral information according to material as claimed in claim 1 is characterized in that the method that commodity detect, further may further comprise the steps:(11) in described spectra database further storage at least a in described sample the characteristic spectrum information of undiscovered particular matter, comprise the modeling algorithm of the characteristic spectrum information of the characteristic spectrum of described particular matter, the spectral measurement condition of obtaining the characteristic spectrum information of described particular matter, the described particular matter of identification;(12) with the characteristic spectrum information stores of described particular matter in described identification sign;(13) identification of described target commodity is distinguished, from described spectra database, extracted the characteristic spectrum information of described particular matter;(14) set test macro according to the characteristic spectrum information of the described particular matter that extracts, take corresponding with it spectrum means to carry out spectral measurement, analyze in the described target commodity whether contain described particular matter described target commodity.
- 5. the spectral information according to material as claimed in claim 4 is characterized in that to the method that commodity detect further may further comprise the steps: whether the concentration of analyzing the described particular matter that contains in the described target commodity is suitable.
- As claim 1,2 or 4 described spectral informations according to material to the method that commodity detect, it is characterized in that described spectrum means are selected infrared spectroscopy, Raman spectrum analysis method or fluorescence spectrum analysing method.
- As claim 1,2 or 4 described spectral informations according to material to the method that commodity detect, it is characterized in that described spectrum means select to comprise infrared spectroscopy, Raman spectrum analysis method and fluorescence spectrum analysing method.
- 8. the spectral information according to material as claimed in claim 6 is characterized in that to the method that commodity detect described infrared spectroscopy comprises absorption spectra, reflection-absorption spectrum, scattering absorption spectra; Described Raman spectrum analysis method comprises normal Raman spectroscopy analytic approach, resonance Raman spectroscopy analytic approach and strengthens the Raman spectrum analysis method.
- As claimed in claim according to the spectral information of material to the method that commodity detect, it is characterized in that described infrared spectroscopy comprises absorption spectra, reflection-absorption spectrum, scattering absorption spectra; Described Raman spectrum analysis method comprises normal Raman spectroscopy analytic approach, resonance Raman spectroscopy analytic approach and strengthens the Raman spectrum analysis method.
- 10. the spectral information according to material as claimed in claim 2 is characterized in that to the method that commodity detect described predetermined substance is pure material or potpourri.
- 11. the spectral information according to material as claimed in claim 4 is characterized in that to the method that commodity detect described particular matter is pure material or potpourri.
- 12. to the method that commodity detect, it is characterized in that described identification is designated one-dimensional bar code, two-dimensional bar or RFID tag (RFID) as claim 1,2 or 4 described spectral informations according to material.
- 13. the spectral information according to material as claimed in claim 1 is characterized in that the method that commodity detect, and further comprises described sample spectra information storage in described identification sign.
- 14. to the method that commodity detect, it is characterized in that described sample message comprises manufacturer's information, the place of production and/or the date of manufacture information of described commodity as claim 1,2 or 4 described spectral informations according to material.
- 15. as claim 1,2, the 4 or 13 described methods that commodity detected according to the spectral information of material, it is characterized in that described sample spectra information comprises described sample spectra, obtains the spectral measurement condition of described sample spectra, the modeling algorithm of the described sample spectra of identification.
- 16. the spectral information according to material said method comprising the steps of the method that commodity detect:(1) employing spectrum means are carried out spectral measurement to the sample of commodity, obtain the sample spectra of measuring under described spectrum means;(2) the described commodity that detect through sampling are provided chartered identification sign, described identification sign stores described sample message and described sample spectra information; (3) identification of described target commodity is distinguished, read described sample message and described sample spectra information;(4) set test macro according to the described sample spectra information that reads, described target commodity are carried out spectral measurement in the subordinate section of described spectrum, obtain the spectrum of described target commodity;The spectrum of the described target commodity that (5) will obtain compares analysis with corresponding described sample spectra, analyze described target commodity whether with described sample basically identical.
- 17. the spectral information according to material as claimed in claim 16 is characterized in that the method that commodity detect, further may further comprise the steps:(7) at the further spectral information of the predetermined substance of at least a debita spissitudo of storage of described identification sign, comprising: the spectrum of the predetermined substance of described debita spissitudo, obtain the modeling algorithm of spectrum of predetermined substance of spectral measurement condition, the described debita spissitudo of identification of spectrum of the predetermined substance of described debita spissitudo;(8) identification of described target commodity is distinguished, read the characteristic spectrum information of the predetermined substance of described debita spissitudo;(9) set test macro according to the spectral information of the predetermined substance of the described debita spissitudo that extracts, take corresponding with it spectrum means to carry out spectral measurement, analyze in the described target commodity whether contain described particular matter described target commodity;
- 18. the spectral information according to material as claimed in claim 17 is characterized in that to the method that commodity detect further may further comprise the steps: whether the concentration of analyzing the described predetermined substance that contains in the described target commodity is suitable.
- 19. the spectral information according to material as claimed in claim 16 is characterized in that the method that commodity detect, further may further comprise the steps:(10) in described identification sign further storage at least a in described sample the characteristic spectrum information of undiscovered particular matter, comprise the modeling algorithm of the characteristic spectrum information of the characteristic spectrum of described particular matter, the spectral measurement condition of obtaining the characteristic spectrum information of described particular matter, the described particular matter of identification;(11) identification of described target commodity is distinguished, read the characteristic spectrum information of described particular matter;(12) set test macro according to the characteristic spectrum information of the described particular matter that extracts, take corresponding with it spectrum means to carry out spectral measurement to described target commodity, to analyze in the described target commodity whether contain described particular matter.
- 20. the spectral information according to material as claimed in claim 19 is characterized in that to the method that commodity detect further may further comprise the steps: whether the concentration of analyzing the described particular matter that contains in the described target commodity is suitable.
- 21. to the method that commodity detect, it is characterized in that described spectrum means are selected infrared spectroscopy, Raman spectrum analysis method or fluorescence spectrum analysing method as claim 16,17 or 19 described spectral informations according to material.
- 22. to the method that commodity detect, it is characterized in that described spectrum means select to comprise infrared spectroscopy, Raman spectrum analysis method and fluorescence spectrum analysing method as claim 16,17 or 19 described spectral informations according to material.
- 23. the spectral information according to material as claimed in claim 21 is characterized in that to the method that commodity detect described infrared spectroscopy comprises absorption spectra, reflection-absorption spectrum, scattering absorption spectra; Described Raman spectrum analysis method comprises normal Raman spectroscopy analytic approach, resonance Raman spectroscopy analytic approach and strengthens the Raman spectrum analysis method.
- 24. the spectral information according to material as claimed in claim 22 is characterized in that to the method that commodity detect described infrared spectroscopy comprises absorption spectra, reflection-absorption spectrum, scattering absorption spectra; Described Raman spectrum analysis method comprises normal Raman spectroscopy analytic approach, resonance Raman spectroscopy analytic approach and strengthens the Raman spectrum analysis method.
- 25. the spectral information according to material as claimed in claim 17 is characterized in that to the method that commodity detect described predetermined substance is pure material or potpourri.
- 26. the spectral information according to material as claimed in claim 19 is characterized in that to the method that commodity detect described particular matter is pure material or potpourri.27, as claim 16,17 or 19 described spectral informations according to material to the method that commodity detect, it is characterized in that described identification is designated one-dimensional bar code, two-dimensional bar or RFID tag (RFID).
- 28. to the method that commodity detect, it is characterized in that described sample message comprises manufacturer's information, the place of production and/or the date of manufacture information of described commodity as claim 16,17 or 19 described spectral informations according to material.
- 29. as claim 16, the 17 or 19 described methods that commodity detected according to the spectral information of material, it is characterized in that described sample spectra information comprises described sample spectra, obtains the spectral measurement condition of described sample spectra, the modeling algorithm of the described sample spectra of identification.
- 30. a system that commodity is detected according to the spectral information of material, described commodity have the identification sign of having stored described commodity in-line coding, comprising:A spectra database has stored the sample message of described commodity, comprising: described sample spectra, the spectral measurement condition of obtaining described sample spectra, the modeling algorithm of the described sample spectra of identification and the in-line coding of described sample;An identity reading device is used to read the identification sign of described target commodity;A device that obtains spectrum, identify the information that reads in described identification according to described identity reading device, from described spectra database, obtain the sample message of described commodity and set test macro, described target commodity are taked to carry out spectral measurement with described sample identical spectra means, to obtain the spectrum of described target commodity;Spectrum unscrambling and material recognition software system are used for the spectrum and the comparative analysis of described sample spectra row of the described target commodity that will obtain.
- 31. system as claimed in claim 30 is characterized in that, described spectra database also comprises the characteristic spectrum of one or more particular matter debita spissitudos beyond the described sample spectra.
- 32. system as claimed in claim 31, it is characterized in that, whether described spectrum unscrambling and material recognition software system compare the spectrum of described target commodity and the spectrum of described particular matter debita spissitudo, suitable to confirm the concentration that whether contains this particular matter in the described target commodity or contain this particular matter.
- 33. system as claimed in claim 32, it is characterized in that, further comprise a computing machine, be included in program described computer run, that the spectrum and the described sample spectra spectral information of described target commodity compared, after described computing machine acceptance is read the information of sending after the described identification sign from described identity recognition device, set the described device that obtains spectrum, to obtain the spectrum of the described target commodity of under one or more spectrum means, measuring.
- 34., it is characterized in that the described device of spectrum that obtains is for comprising an infrared spectrometer as claim 30,31,32 or 33 described systems.
- 35., it is characterized in that the described device of spectrum that obtains is for comprising a Raman spectrometer as claim 30,31,32 or 33 described systems.
- 36., it is characterized in that the described device of spectrum that obtains is for comprising a fluorescence spectrophotometer as claim 30,31,32 or 33 described systems.
- 37. system as claimed in claim 34 is characterized in that, the spectrum of described sample spectra and described target commodity obtains by infrared spectroscopy.
- 38. system as claimed in claim 35 is characterized in that, the spectrum of described sample spectra and described target commodity obtains by the Raman spectrum analysis method.
- 39. system as claimed in claim 38 is characterized in that, described Raman spectrum analysis method comprises that normal Raman spectroscopy technology, resonance Raman spectroscopy technology and/or surface enhanced Raman technique obtain.
- 40. system as claimed in claim 36 is characterized in that, the spectrum of described sample spectra and described target commodity obtains by fluorescence spectrum analysing method.
- 41., it is characterized in that described characteristic spectrum obtains by infrared spectroscopy, Raman spectrum analysis method and/or fluorescence spectrum analysing method as claim 31 or 32 described systems.
- 42., it is characterized in that described Raman spectroscopy system comprises a mechanism that is used to generate the excitation beam of radiation as claim 30,31,32 or 33 described systems, described mechanism comprises one or more semiconductor lasers.
- 43., it is characterized in that described identity recognition device is a bar code recognition equipment as claim 30,31,32 or 33 described systems.
- 44., it is characterized in that described identity recognition device is radio-frequency (RF) identification (RFID) read-write equipment as claim 30,31,32 or 33 described systems.
- 45., it is characterized in that described identification is designated one dimension or two-dimensional bar as claim 30,31,32 or 33 described systems.
- 46., it is characterized in that described identification is designated RFID tag (RFID) as claim 30,31,32 or 33 described systems.
- 47., it is characterized in that as claim 30,31,32 or 33 described systems, further comprise a data input device, be used for the described target merchandise news of typing.
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| CN2010102221284A CN101949824A (en) | 2009-06-30 | 2010-06-30 | Method and system device for detecting commodity according to spectral information of substance |
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| CN200910108392 | 2009-06-30 | ||
| CN200910108392.2 | 2009-06-30 | ||
| CN2010102221284A CN101949824A (en) | 2009-06-30 | 2010-06-30 | Method and system device for detecting commodity according to spectral information of substance |
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