CN117388249A - Method and device for identifying luminous pearl - Google Patents
Method and device for identifying luminous pearl Download PDFInfo
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- CN117388249A CN117388249A CN202311284029.2A CN202311284029A CN117388249A CN 117388249 A CN117388249 A CN 117388249A CN 202311284029 A CN202311284029 A CN 202311284029A CN 117388249 A CN117388249 A CN 117388249A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000011049 pearl Substances 0.000 claims abstract description 117
- 238000000103 photoluminescence spectrum Methods 0.000 claims abstract description 82
- 230000005284 excitation Effects 0.000 claims abstract description 74
- 238000004020 luminiscence type Methods 0.000 claims description 22
- 229910052729 chemical element Inorganic materials 0.000 claims description 19
- 239000011324 bead Substances 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 16
- 230000005274 electronic transitions Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 13
- 238000012545 processing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 229910052747 lanthanoid Inorganic materials 0.000 description 5
- 150000002602 lanthanoids Chemical class 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000005281 excited state Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 238000003491 array Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005090 crystal field Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010437 gem Substances 0.000 description 2
- 229910001751 gemstone Inorganic materials 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/87—Investigating jewels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Abstract
The invention provides a method and a device for identifying luminous pearls, wherein the method comprises the steps of obtaining photoluminescence spectra generated by the luminous pearls to be tested under excitation of excitation light; and determining a luminous color cause based on the luminous peak position in the photoluminescence spectrum. The luminous reason of the luminous pearls is analyzed based on photoluminescence spectra, the purpose of nondestructively identifying the luminous pearls is realized, and the blank that the luminous pearls lack a related detection and identification method is filled.
Description
Technical Field
The invention relates to the technical field of information processing, in particular to a method and a device for identifying luminous pearls.
Background
The pearl is one of the most common jewel varieties in jewelry detection laboratories, under the nondestructive jewelry detection requirement, a conventional detection instrument can only analyze the surface components of the outer pearl layer of the pearl, but the pearl nucleus of the luminous pearl is wrapped by the pearl layer, and the luminous pearl cannot be detected by a conventional identification method.
The information disclosed in the background section of this application is only for enhancement of understanding of the general background of this application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention provides a method and a device for identifying a luminous pearl, which are used for solving the problem that the luminous pearl cannot be identified nondestructively in the related art.
The invention provides a method for identifying a luminous pearl, which comprises the steps of obtaining a photoluminescence spectrum generated by the luminous pearl to be tested under excitation of excitation light; and determining a luminous color cause based on the luminous peak position in the photoluminescence spectrum.
Optionally, the obtaining the photoluminescence spectrum generated by the luminescent pearl to be tested under excitation of the excitation light includes: acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength; or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
Optionally, determining the emission color cause based on the emission peak position in the photoluminescence spectrum includes: obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light; comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions; based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
Optionally, determining whether the luminescent color is caused by a preset chemical element contained in the bead core based on the target peak position includes: determining an electronic transition type based on the characteristics of the target peak position; and determining the preset chemical elements contained in the bead core based on the electron transition type.
The invention also provides a device for identifying the luminous pearls, which comprises a photoluminescence spectrum acquisition unit, a detection unit and a detection unit, wherein the photoluminescence spectrum acquisition unit is configured to acquire photoluminescence spectrums generated by the luminous pearls to be detected under excitation of excitation light; a color cause determination unit configured to determine a light emission color cause based on a light emission peak position in the photoluminescence spectrum.
Optionally, the obtaining the photoluminescence spectrum generated by the luminescent pearl to be tested under excitation of the excitation light includes: acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength; or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
Optionally, determining the emission color cause based on the emission peak position in the photoluminescence spectrum includes: obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light; comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions; based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
Optionally, determining whether the luminescent color is caused by a preset chemical element contained in the bead core based on the target peak position includes: determining an electronic transition type based on the characteristics of the target peak position; and determining the preset chemical elements contained in the bead core based on the electron transition type.
The present invention also provides an electronic device including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to invoke the instructions stored in the memory to perform the method of any of claims 1 to 4
The present invention also provides a computer readable storage medium having stored thereon computer program instructions which when executed by a processor implement the above-described method.
The method and the device for identifying the luminous pearls comprise the steps of obtaining photoluminescence spectra generated by the luminous pearls to be tested under excitation of excitation light; and determining a luminous color cause based on the luminous peak position in the photoluminescence spectrum. The luminous reason of the luminous pearls is analyzed based on photoluminescence spectra, the purpose of nondestructively identifying the luminous pearls is realized, and the blank that the luminous pearls lack a related detection method is filled.
Drawings
FIG. 1 is a flow chart schematically illustrating a method of identifying a luminous pearl according to an embodiment of the present invention;
FIG. 2a schematically illustrates the photoluminescence spectrum of a pearl having a yellow-green luminescence color according to an embodiment of the invention;
FIG. 2b schematically illustrates the photoluminescence spectrum of a pearl with a blue emission color according to an embodiment of the invention;
FIG. 2c schematically illustrates the photoluminescence spectrum of a normal pearl without luminescence according to an embodiment of the invention;
FIG. 3a schematically illustrates the photoluminescence spectrum of a pearl having a yellow-green luminescence color at continuously varying excitation light wavelengths according to an embodiment of the invention;
FIG. 3b shows the photoluminescence spectrum of a pearl having a blue emission color at a continuously varying excitation light wavelength;
fig. 4 is a schematic structural view of an application embodiment of the electronic device of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, and/or B may mean: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.
FIG. 1 schematically illustrates a flow chart of a method of identifying a luminescent pearl in accordance with an embodiment of the present invention, comprising:
step 101: and obtaining photoluminescence spectrum generated by the luminous pearl to be tested under excitation of excitation light.
In this embodiment, an excitation light source is generated by an instrument to excite the pearl nuclei of the luminous pearls to be detected, and the pearl nuclei emit light under the excitation of the excitation light, so that a photoluminescence spectrum can be obtained.
Step 102: and determining a luminous color cause based on the luminous peak position in the photoluminescence spectrum.
In this embodiment, if the substance in the sample to be measured absorbs external energy, the electrons are in an excited state, the state is an unstable state, the electrons in the excited state transition back to the ground state, and release energy in the form of visible light, and are affected by different crystal fields, and different elements can perform energy level jump in different ways to emit light with different wavelengths.
Thus, determining the color cause of a luminous pearl can ultimately determine whether it is a target type of luminous pearl, which in this embodiment refers to a pearl containing a specific element.
Examples of influencing the luminescence color and the luminescence cause may be as follows:
even if the colors of the emitted light are the same, the causes may be different. For example, if only one electronic transition type exists in the luminescent material of the pearl to be detected, corresponding to the corresponding luminescent color; if multiple electronic transition types exist in the luminescent material of the pearl to be detected, multiple emission bands can appear; both cases may appear to be the same color when excited by an external light source, but the same color is not caused by the same luminescent element.
It is also possible that the emitted light is of different colors, comprising the same element, since even the same element, if present in different matrix materials, differences in ion species, ion concentration will result in a change in the position and intensity of the emission band.
Therefore, the present embodiment can determine the cause of the luminescence color according to the emission wavelength, and thus can determine the element in the luminous pearl. The embodiment provides the luminous characteristic of the luminous pearl based on the photoluminescence spectrum, and can further analyze the luminous elements in the pearl nucleus, thereby effectively identifying the luminous pearl.
As an optional implementation manner of this embodiment, the obtaining a photoluminescence spectrum generated by the light-emitting pearl to be tested under excitation of the excitation light includes: acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength; or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
In the alternative implementation mode, an instrument for setting an excitation light source generates an excitation light source with the wavelength continuously changed, different wavelengths emitted by pearl nuclei to be tested under excitation are recorded through an upper computer, and the wavelength and the intensity change along with the wavelength of the excitation light are recorded; the instrument of the excitation light source can be set to generate the excitation light source with fixed wavelength, such as 532nm, and the change of the wavelength and the intensity emitted by the pearl to be detected under the fixed excitation wavelength can be recorded through the upper computer.
As an optional implementation manner of this embodiment, determining the emission color cause based on the emission peak position in the photoluminescence spectrum includes: obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light; comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions; based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
In the alternative implementation mode, the common pearls without the luminescence phenomenon are used as comparison, so that the luminescence peak position generated by the self luminescence phenomenon in the photoluminescence spectrum of the pearls to be detected, namely the target peak position, is finally determined. And determining whether the target peak position contains a preset chemical element or not according to the characteristics of the target peak position. The characteristics of the target peak position include, but are not limited to, the wavelength and intensity corresponding to the peak position, the trend of the variation curve near the peak position, and the like.
As an optional implementation manner of this embodiment, based on the target peak position, determining whether the luminescent color is caused by a preset chemical element included in the bead core includes: determining an electronic transition type based on the characteristics of the target peak position; and determining the preset chemical elements contained in the bead core based on the electron transition type.
The preset element of the bead core in this embodiment is set as a lanthanide rare earth element, the chemical property of the lanthanide is basically the same as the composition of the outer electron, the energy level of the inner electron is a similar electron layer structure, the inner electron has an unsatisfied 4f5d electron configuration shielded by the outside, after the material absorbs the outside energy, the electron is in an excited state, the state is an unstable state, and the electron in the excited state transitions back to the ground state, and releases energy in the form of visible light. The lanthanide rare earth elements can undergo energy level transitions in different ways to emit light of different wavelengths, affected by different crystal fields.
In the optional implementation mode, under the excitation light source (532 nm) with fixed wavelength, photoluminescence spectra of different types of pearls, and photoluminescence spectra obtained by adopting the 532nm wavelength as the excitation light source can be effectively used for judging the electronic transition type inside the luminous element, so that the luminous element in the pearl nucleus material is identified. Referring to the photoluminescence spectra of the pearl having a yellow-green luminescence color in fig. 2a, the photoluminescence spectra of the pearl having a blue luminescence color in fig. 2b, and the photoluminescence spectra of the general pearl having no luminescence phenomenon in fig. 2c, the luminescent pearl sample exhibits a unique luminescence peak position, which is generally located in the vicinity of 553,565 nm and has a broad luminescence band in the vicinity of 620nm, under excitation of a light source having a wavelength of 532nm, which is completely different from the photoluminescence spectra of the general pearl having no luminescence phenomenon. By comparison, it was found that the luminescence peaks at 553 and 565nm, which are generated by the main constituent mineral aragonite of the nacreous layer, are all due to luminescence of the luminous pearl nucleus. From the remaining emission peak positions, the emission color cause can be further determined.
And determining the type of the electronic transition according to the distribution of the target peak positions in the spectrum and the corresponding wavelength and intensity. The electronic transition type may be as follows:
1. the wavelength was about 586nm, which was a weak luminescence peak, and was determined to be electron generation 5 d0→ 7 f0 transition;
2. the light peak with the wavelength of about 597nm is judged to be electron generation 5 d 0 → 7 f 1 A transition;
3. a peak wavelength of about 615nm, and determining that electrons are generated 5 d0→ 7 f2 transition;
4. a light peak having a wavelength of about 653nm, and determining that electrons are generated 5 d0→ 7 f3, transition;
5. a light peak having a wavelength of about 653nm, and determining that electrons are generated 5 d0→ 7 f4 transition.
At 532nm excitation wavelength, it was determined whether the peak positions contained 578 (+ -2 nm), 586 (+ -2 nm), 612 (+ -2 nm), 616 (+ -2 nm), 653 (+ -2 nm), 651 (+ -2 nm) and 699nm (+ -2 nm) peak positions, and if so, the electron transition type was 4f n-1 5d 1 →4f n The transition type has luminescent elements of lanthanide rare earth elements, or else non-lanthanide rare earth elements.
The method can also adopt a continuously-changing excitation light source to excite, record the change of the emission wavelength and the intensity of the sample to be tested along with the excitation wavelength under the continuously-changing excitation light wavelength, and accurately describe the luminous color of the luminous pearl according to the strongest luminous peak position. Illustratively, referring to FIG. 3a, at continuously varying excitation light wavelengths, the photoluminescence spectrum of a pearl having a yellow-green luminescence color; and FIG. 3b shows the photoluminescence spectrum of a pearl having a blue emission color at a continuously varying excitation light wavelength.
Aiming at the luminous pearls appearing in the current market, the luminous characteristics and the luminous elements of the pearl nuclei of the pearls cannot be analyzed by using a conventional gem test method, and the purposes of no damage, rapidness and accuracy are achieved by adopting the mode.
The luminous pearl is a brand new pearl species, however, the conventional pearl identification method and process in the laboratory can not effectively identify the pearl. The photoluminescence spectrum is used for measuring photoluminescence spectra and intensity function curves of emitted light by taking light with different wavelengths as excitation sources, so that the luminous characteristics and luminous elements of the luminous pearls are detected, and the limitation of the conventional jewelry identification method on the detection of the luminous pearls is overcome. The identification method is an improvement of the conventional identification method and an analysis method, has the advantages of simple operation equipment, no destructiveness, high resolution capability, no strict requirements on samples and the like, and achieves the purposes of nondestructive, rapid and accurate detection. The embodiment can be used as an important supplement for understanding the properties of the pearl, and provides a brand new detection basis for pearl detection and quality evaluation.
Fig. 2 schematically illustrates a detection device for a luminous pearl according to an embodiment of the present invention, the device comprising: the photoluminescence spectrum acquisition unit is configured to acquire photoluminescence spectra generated by the luminous pearls to be detected under excitation of excitation light; a color cause determination unit configured to determine a light emission color cause based on a light emission peak position in the photoluminescence spectrum.
As an optional implementation manner of this embodiment, the obtaining a photoluminescence spectrum generated by the light-emitting pearl to be tested under excitation of the excitation light includes: acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength; or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
As an optional implementation manner of this embodiment, determining the emission color cause based on the emission peak position in the photoluminescence spectrum includes: obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light; comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions; based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
As an optional implementation manner of this embodiment, based on the target peak position, determining whether the luminescent color is caused by a preset chemical element included in the bead core includes: determining an electronic transition type based on the characteristics of the target peak position; and determining the preset chemical elements contained in the bead core based on the electron transition type.
Referring to fig. 4, an electronic device includes one or more processors and memory. The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in the electronic device to perform the desired functions.
The present invention may be a method, apparatus, device and/or computer program product. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for performing various aspects of the present invention.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.
The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.
Computer program instructions for carrying out operations of the present invention may be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, c++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information for computer readable program instructions, which can execute the computer readable program instructions.
Various aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer readable program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processing unit of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium having the instructions stored therein includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Note that all features disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic set of equivalent or similar features. Where used, further, preferably, still further and preferably, the brief description of the other embodiment is provided on the basis of the foregoing embodiment, and further, preferably, further or more preferably, the combination of the contents of the rear band with the foregoing embodiment is provided as a complete construct of the other embodiment. A further embodiment is composed of several further, preferably, still further or preferably arrangements of the strips after the same embodiment, which may be combined arbitrarily.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A method for identifying a luminescent pearl, comprising:
obtaining photoluminescence spectrum generated by the luminous pearl to be tested under excitation of excitation light;
and determining a luminous color cause based on the luminous peak position in the photoluminescence spectrum.
2. The method of claim 1, wherein the obtaining the photoluminescence spectrum generated by the light-emitting pearl to be tested under excitation of the excitation light comprises:
acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength;
or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
3. The method of claim 1, wherein determining a cause of luminescence color based on a luminescence peak position in the photoluminescence spectrum comprises:
obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light;
comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions;
based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
4. The method of claim 3, wherein determining whether the color of luminescence is caused by a predetermined chemical element contained in a bead core based on the target peak position comprises:
determining an electronic transition type based on the characteristics of the target peak position;
and determining the preset chemical elements contained in the bead core based on the electron transition type.
5. A luminous pearl identification device, comprising:
the photoluminescence spectrum acquisition unit is configured to acquire photoluminescence spectra generated by the luminous pearls to be detected under excitation of excitation light; a color cause determination unit configured to determine a light emission color cause based on a light emission peak position in the photoluminescence spectrum.
6. The apparatus for discriminating a luminescent pearl according to claim 5, wherein said obtaining a photoluminescence spectrum generated by the luminescent pearl to be tested under excitation of excitation light comprises:
acquiring photoluminescence spectra generated by the pearl to be detected under the continuously-changed excitation light wavelength;
or obtaining photoluminescence spectrum generated by the pearl to be tested under the fixed excitation light wavelength.
7. The luminescent pearl discrimination device according to claim 5, wherein determining a luminescent color cause based on a luminescent peak position in the photoluminescence spectrum includes:
obtaining photoluminescence spectrum generated by the non-luminous pearl under excitation of the excitation light;
comparing the photoluminescence spectrum of the non-luminous pearl with the photoluminescence spectrum of the luminous pearl, and filtering peak positions with the same characteristics to obtain the rest target peak positions;
based on the target peak position, it is determined whether the emission color is caused by a preset chemical element contained in the bead core.
8. The luminescent pearl discrimination device according to claim 7, wherein based on the target peak position, to determine whether the luminescent color is caused by a preset chemical element contained in the pearl nucleus includes:
determining an electronic transition type based on the characteristics of the target peak position;
and determining the preset chemical elements contained in the bead core based on the electron transition type.
9. An electronic device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to invoke the instructions stored in the memory to perform the method of any of claims 1 to 4.
10. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the method of any of claims 1 to 4.
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