CN103389274A - Portable livestock meat detection equipment and method - Google Patents
Portable livestock meat detection equipment and method Download PDFInfo
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- CN103389274A CN103389274A CN2013103322322A CN201310332232A CN103389274A CN 103389274 A CN103389274 A CN 103389274A CN 2013103322322 A CN2013103322322 A CN 2013103322322A CN 201310332232 A CN201310332232 A CN 201310332232A CN 103389274 A CN103389274 A CN 103389274A
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Abstract
The invention provides portable livestock meat detection equipment and method. The equipment comprises a detection probe, a collection device and a processor, wherein the detection probe comprises a light source, a probe base, a lampshade and a light outlet part; the light source is arranged above the detection probe and used for producing detection light; a sample can be put on the probe base; the lampshade is arranged outside the light source and connected with the probe base to form a closed darkroom; the light outlet part is arranged above the detection probe and used for receiving and outputting a spectral signal which is generated after the sample is irradiated by the detection light; the collection device is used for collecting the spectral signal from the light outlet part and outputting the spectral signal to the processor; the processor is used for analyzing the received spectral signal to obtain a detection result. The portable livestock meat detection equipment and method provided by the invention can realize quick, effective and non-destructive detection, and can fulfill the mobile and portable characteristics of sample detection, spectrum collection and data processing.
Description
Technical field
The present invention relates to detection field, relate in particular to a kind of portable detection equipment and method.
Background technology
Along with the relative variation of the improving constantly of living standard, diet structure and to the growing interest of health, people increase sharply to the demand of livestock and poultry fresh meat, and the requirement of meat quality is also improved constantly.The quality of poultry meat, directly have influence on consumer's quality of life and healthy and safe, has been subject to growing interest and the attention of whole meat products manufacturing and processing enterprise.
Traditional detection method has organoleptic examination and physical and chemical inspection etc.Organoleptic examination is by the evaluation of the evaluation personnel through professional training, relies on subjectivity and identifies; Physical and chemical inspection is to adopt chemical analysis method or such as instruments such as shearing tender degree device, thrust-type pH meter, carry out the detection of meat products physicochemical property, thereby grades and classify.
Hence one can see that, and above classic method step is relatively loaded down with trivial details, and operating personnel's technical merit and skill level are had relatively high expectations, and analysis time is long, and detection efficiency is low.The method subjectivity of organoleptic examination is too strong, there is no repeatability and objective standard; Though and the physical and chemical inspection method has certain objective standard, all belong to destructive and detect, can't reach the purpose of meat products being carried out Non-Destructive Testing.
Summary of the invention
The technical matters that (one) will solve
The invention provides breeding stock meat portable detection equipment and a method, need not the sample that detects is damaged, can carry out Non-Destructive Testing fast and effectively, sample is had destructive problem when solving the sample detection that exists in prior art.
(2) technical scheme
For addressing the above problem, the invention provides a breeding stock meat portable detection equipment, comprising: detection probe, gathering-device and processor, wherein:
Described detection probe comprises: light source, probe mount, lampshade, and light exit parts; Light source, be arranged on the detection probe top, for generation of detecting light; Probe mount, be used for placing sample; Lampshade, be arranged on the described light source outside, with described probe mount, is connected, and forms airtight darkroom; The light exit parts, be arranged on the detection probe top, and be used for receiving detection light and shine the spectral signal that produces after sample, and output.
Described gathering-device, be used for collecting spectral signal from the light exit parts, and export processor to;
Described processor, be used for the spectral signal that receives is analyzed, and obtains testing result.
Further, described light source is halogen tungsten lamp light source.
Further, the number of described light source is two;
Described lampshade is two, and the angle of these two lampshade center line lines is 54 °, and there is the thick dentation otch of 1mm on surface.
Further, described probe mount also comprises: optical window sheets;
Described optical window sheets is the sapphire optical window sheets, sticks with glue and is fixed on the probe mount lower surface, and the detection light that light source produces shines on described sample by optical window sheets.
Further, described light exit parts are: the spectrometer connecting duct, afterbody has internal thread, is used for connecting outside spectrometer coupled lens.
Further, when described lampshade was two, the center line of two lampshade center lines and optical window sheets center line, spectrometer connecting duct intersected at the center of optical window sheets.
Further, described gathering-device comprises: spectrometer, described spectrometer are micro spectrometer, and its effective wave band is 350-1100nm, are used for the digital signal that obtains is analyzed and transmitted to spectral signal to processor.
Further, described gathering-device also comprises: coupled lens or optical fiber, be used for connecting described light exit parts, and converging the spectral signal that the light source irradiation sample produces is directional light, then transfers to spectrometer analysis.
Further, described processor comprises: ARM, DSP or single-chip microcomputer.
On the other hand, the present invention also provides a kind of and utilizes described poultry meat portable detection equipment to carry out the method for test sample, comprising:
In the airtight darkroom of detection probe, the detection light that light source is produced exposes to sample;
Sample reception detects the spectral signal that produces after light and exports by the light exit parts;
Spectrometer is collected the spectral signal that produces and is treated to digital signal, is sent to processor;
Processor is analyzed described digital signal and output detections result.
(3) beneficial effect
As seen, poultry meat portable detection equipment and method proposed by the invention, can utilize light to shine on sample the sample quality is carried out analyzing and testing, need not directly to contact sample, need not sample is damaged, is a kind of detection method of non-destructive fast and effectively.Simultaneously, the detection method of this optical information can utilize sample to the various characteristicses such as absorption, scattering, reflection and transmission of light, the sample quality to be detected, appearance characteristics that not only can test sample, can also enter sample interior and reflect the inner structure composition information of sample with this, and the spectrum analysis standard consistency of spectral information is strong, so this is also a kind ofly can efficiently reflect the various information of sample comprehensively, repeatable high detection method.
And, due under identical intensity of illumination, the spectral intensity that is reflected back of sample is larger in short-term for distance, the airtight darkroom that probe mount and lampshade are connected to form also is beneficial to converging and transmitting of light more, can reduce like this integral time of spectrometer when image data, accelerate the detection speed of detection probe, improve detection efficiency.
Simultaneously, in poultry meat portable detection equipment provided by the invention and method, owing to having selected a series of flexible, light simple devices, such as the little and portable coupled lens of volume, micro spectrometer, ARM development board etc., and all constituents height is integrated, become a complete integration apparatus, and greatly reduced the volume and weight of equipment, make the device conveniently moving, more easily operate and carry, thereby broken away from the shortcomings such as expensive heaviness of large-scale analysis and detecting instrument, met the mobile portable advantage that sample detection, spectra collection, data are processed.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the basic structure schematic diagram of pick-up unit of the present invention;
Fig. 2 is the inner structure front view of a kind of preferred structure of pick-up unit of the present invention;
Fig. 3 is the top view of the inner structure bottom of a kind of preferred structure of pick-up unit of the present invention;
Fig. 4 is the method flow diagram that detects based on pick-up unit in a preferred embodiment of the invention;
Fig. 5 is the basic flow sheet of detection method of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment that obtains, belong to the scope of protection of the invention.
The embodiment of the present invention proposes a breeding stock meat portable detection equipment,, referring to Fig. 1, comprising: detection probe 101, gathering-device 102 and processor 103, wherein, as shown in Figure 2:
Described detection probe 101 comprises: light source 201, probe mount 202, lampshade 203, and light exit parts 204; Light source 201, be arranged on detection probe 101 tops, for generation of detecting light; Probe mount 202, be used for placing sample; Lampshade 203, be arranged on described light source 201 outsides, with described probe mount 202, is connected, and forms airtight darkroom; Light exit parts 204, be arranged on detection probe 101 tops, and be used for receiving detection light and shine the spectral signal that produces after sample, and output.
Described gathering-device 102, be used for collecting spectral signal from the light exit parts, and export processor to;
Described processor 103, be used for the spectral signal that receives is analyzed, and obtains testing result.
Hence one can see that, in the poultry meat portable detection equipment that the embodiment of the present invention proposes, can utilize light to shine on sample the sample quality is carried out analyzing and testing, need not sample is damaged, and be a kind of nondistructive detecting method fast and effectively.Simultaneously, the checkout equipment of this optical information can utilize sample to the various characteristicses such as absorption, scattering, reflection and transmission of light, the sample quality to be detected, appearance characteristics that not only can test sample, can also enter sample interior and reflect the inner structure composition information of sample with this, and the spectrum analysis standard consistency of spectral information is strong, so this is also a kind ofly can efficiently reflect the various information of sample comprehensively, repeatable high checkout equipment.
And, due under identical intensity of illumination, the spectral intensity that is reflected back of sample is larger in short-term for distance, the airtight darkroom that probe mount and lampshade are connected to form also is beneficial to converging and transmitting of light more, can reduce like this integral time of spectrometer when image data, accelerate the detection speed of detection probe, improve detection efficiency.
In practice, for the intensity of illumination that makes light source 201 is larger, a kind of better mode is that light source adopts halogen tungsten lamp light source.
In one embodiment of the invention, as shown in Figure 2 and Figure 3,, in order to concentrate the light intensity of light source 201, make simultaneously light source 201 more stable, preferably, can adopt two light sources; During for fear of detection, the interference of external environment light, can correspondingly install two lampshades 203.In order to make the detection probe size that obtains finally minimum, better, the angle that can make the center line line of two lampshades is 54 ° simultaneously.In addition, in another embodiment,, in order to increase the surface area of lampshade 203, accelerate light source heat radiation, adopted the thick dentation otch of 1mm on lampshade 203 surfaces.
For the distance of fixed sample to light source, make while detecting different sample and all can guarantee identical detection distance and intensity of illumination, guarantee identical spectroscopic data pre-service; Simultaneously for fear of the meat sample, because causing watery blood and pollutant, extruding enters detection probe, in another embodiment, utilization is adhesive in the lower surface of probe mount 202 and has fixed optical window sheets 205, and the detection light that light source 201 produces can shine on sample by optical window sheets 205.Consider that simultaneously optical window sheets 205 need to have than high permeability, scratch resistance and easy cleaning, a kind of better mode is to select the sapphire optical window sheets, because its transmitance is more than 85%, most of spectral information of sample is seen through, and anti-clean wiping.
Detect the more concentrated spectrometer that enters exactly of spectral signal in order to make, the inside of light exit parts 204 can comprise: spectrometer connecting duct 206.In another embodiment, spectrometer connecting duct 206 afterbodys have internal thread, are used for connecting outside spectrometer coupled lens 208.
In another embodiment, in order to make more concentrated the shining on test sample of light in light source 201, collect as far as possible exactly and detect spectral signal simultaneously, when a kind of better processing mode is two at lampshade 203, guarantee that two lampshade 203 center lines and optical window sheets 205 center lines, spectrometer connecting duct 206 center lines intersect at optical window sheets 205De center.
In order to increase the portability of checkout equipment, simultaneously because Vis/NIR district (380-1100nm) scope internal information amount is abundant, penetration power is stronger, to measured meat not damaged, so gathering-device 102 can comprise: spectrometer 207.Preferably, spectrometer 207 can be micro spectrometer, and effectively wave band is at 350-1100nm, is used for the digital signal that obtains is analyzed and transmitted to spectral signal to processor.
In detection, for the spectral signal that obtains after the light irradiation sample that light source 201 is produced is analyzed better and processes, a kind of better processing mode is that the gathering-device 102 in checkout equipment can also comprise: coupled lens or optical fiber are used for the light that will collect and pool after directional light and transfer to spectrometer 207 again and analyze.Preferably, in one embodiment of the invention, adopted coupled lens 208 substituted for optical fibers to converge light, this be because optical fiber fragile, can not bend easily and length longer, and coupled lens 208 volumes are little, and are more portable, and can converge well remote light.
In another embodiment of the present invention, for movability and the portability that improves equipment, preferably, processor 103 can comprise: ARM, DSP or single-chip microcomputer.
Below, specifically to test a meat sample as example, describe the implementation procedure of one embodiment of the invention in detail.
Fig. 4 can't harm the process flow diagram of method for quick to a meat sample in a preferred embodiment of the invention, the process that can't harm fast detecting for this meat sample comprises:
Step 401: open detection probe, wait for that the spectral intensity of light source in detection probe reaches stable rear execution step 402.
, in order further to guarantee the effect that detects, detection probe can be placed on spaciousness and not near the place of thermal source.In detection probe, light source need to carry out preheating and makes output intensity stable, thereby obtains more stable collection of illustrative plates and better detect effect, and here, the time of usually waiting for is 10 minutes.
Step 402: the processor that the kind of sample, place of production input information are connected with detection probe.
Input sample details are so that record the testing result of sample and for referencial use.
Step 403: by processor selection, whether the spectrometer parameter is set, if so, enters step 404, otherwise, jump to step 405.
There is button at interface on the processor screen, and the parameter of spectrometer can be set according to different environmental baselines, if environmental baseline does not change and can arrange.The spectrometer parameter comprises integral time, sampling number, level and smooth number of times etc., can be according to operator's requirement change.
Step 404: the parameter of spectrometer is set by processor, then enters step 405.
Step 405: sample is close on the optical window sheets that is placed in detection probe.
Optical window sheets in detection probe is positioned at light source and produces the place that converges of light, can the fixed sample surface and light source between distance, and watery blood and other pollutants due to extruding meat enter inside while preventing from detecting.
Step 406: in the airtight darkroom of detection probe, the light source in detection probe emits beam, and light is shone sample.
Step 407: after light shines sample, produce spectral signal.
Here, the spectral signal of generation comprises the signal of sample reflection and/or the signal of refraction.
Step 408: the spectral signal of collecting above-mentioned generation by spectrometer.
Here, the spectral signal of spectrometer collection comprises the signal of sample reflection and/or the signal of refraction.
In this step, the spectral signal that light irradiation sample produces, can utilize coupled lens or optical fiber at first to pool directional light and then collect.Preferably, adopt the coupled lens substituted for optical fibers to converge light in this step, this be because optical fiber fragile, can not bend easily and length longer; And the coupled lens volume is little, and is more portable, and can converge well remote light.
In this step, the parallel optical signal after converging can after spectrograph slit, form digital signal and send processor to by analysis.Here, spectrometer can be micro spectrometer, and its effective wave band is 350-1100nm.
Step 409: processor is collected the digital signal that spectrometer is sent, and data are processed, and the fresh meat forecast model that substitution is implanted calculates.
For movability and the portability that improves equipment, preferably, processor can be: ARM, DSP or single-chip microcomputer.
A series of spectroscopic datas that the spectrometer collection is come carry out conversion and calculating, then obtain result of calculation.Result of calculation generally includes TVB-N, moisture, pH, color, the tender degree of meat.
Step 410: processor output detections result.
Here, testing result can comprise: detected parameters and class information.Can be divided into according to national standard fresh and stale when detected parameters is TVB-N and pH; Can be divided into when detected parameters is moisture and exceeding standard with up to standard; Can be divided into old and tender etc. when detected parameters is tender spending.
So far, completed the harmless fast detecting process of a meat sample in the embodiment of the present invention.
In addition, need to prove, it is that the present invention can't harm a kind of preferred implementation procedure of method for quick to the meat sample that above-mentioned all flow processs based on Fig. 4 are described, in the actual realization of the harmless method for quick of the present invention, can carry out as required random variation on the basis of flow process shown in Figure 4, can be to select the arbitrary steps in Fig. 4 to realize, the sequencing of each step also can be adjusted etc. as required.Such as, in step 408, still can take optical fiber or other modes to carry out converging and collecting of spectral signal.
Also proposed to come based on any one checkout equipment of the invention described above embodiment the method for test sample in one embodiment of the invention, as shown in Figure 5, having comprised:
Step 501: in the airtight darkroom of detection probe, the detection light that light source is produced exposes to sample;
Step 502: sample reception detects the spectral signal that produces after light and exports by the light exit parts;
Step 503: spectrometer is collected the spectral signal that produces and is treated to digital signal, is sent to processor;
Step 504: processor is analyzed described digital signal and output detections result.
Poultry meat portable detection equipment and method that the embodiment of the present invention proposes, go for detecting Arbitrary Samples, is particularly useful for detecting the fresh meat goods, perhaps expands to any agricultural product or other goods.
As seen, the embodiment of the present invention has following beneficial effect:
Poultry meat portable detection equipment and method that the embodiment of the present invention proposes, can utilize light to shine on sample the sample quality is carried out analyzing and testing, need not sample is damaged, and is a kind of detection method of non-destructive fast and effectively.Simultaneously, the detection method of this optical information can utilize sample to the various characteristicses such as absorption, scattering, reflection and transmission of light, the sample quality to be detected, appearance characteristics that not only can test sample, can also enter sample interior and reflect the inner structure composition information of sample with this, and the spectrum analysis standard consistency of spectral information is strong, so this is also a kind ofly can efficiently reflect the various information of sample comprehensively, repeatable high detection method.
And, due under identical intensity of illumination, the spectral intensity that is reflected back of sample is larger in short-term for distance, the airtight darkroom that probe mount and lampshade are connected to form also is beneficial to converging and transmitting of light more, can reduce like this integral time of spectrometer when image data, accelerate the detection speed of detection probe, improve detection efficiency.
Simultaneously, in poultry meat portable detection equipment provided by the invention and method, owing to having selected a series of flexible, light simple devices, such as the little and portable coupled lens of volume, micro spectrometer, ARM etc., make the device conveniently moving, more easily operate and carry, having broken away from the shortcomings such as expensive heaviness of large-scale analysis and detecting instrument, having met the mobile portable characteristics that sample detection, spectra collection, data are processed.
It should be noted that finally: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a breeding stock meat portable detection equipment, is characterized in that, comprising: detection probe, gathering-device and processor, wherein:
Described detection probe comprises: light source, probe mount, lampshade, and light exit parts; Light source, be arranged on the detection probe top, for generation of detecting light; Probe mount, be used for placing sample; Lampshade, be arranged on the described light source outside, with described probe mount, is connected, and forms airtight darkroom; The light exit parts, be arranged on the detection probe top, and be used for receiving detection light and shine the spectral signal that produces after sample, and output.
Described gathering-device, be used for collecting spectral signal from the light exit parts, and export processor to;
Described processor, be used for the spectral signal that receives is analyzed, and obtains testing result.
2. raise according to claim 1 the meat portable detection equipment, it is characterized in that: described light source is halogen tungsten lamp light source.
3. raise according to claim 1 the meat portable detection equipment, it is characterized in that:
The number of described light source is two;
Described lampshade is two, and the angle of these two lampshade center line lines is 54 °, and there is the thick dentation otch of 1mm on surface.
4. raise according to claim 1 the meat portable detection equipment, it is characterized in that, described probe mount also comprises: optical window sheets;
Described optical window sheets is the sapphire optical window sheets, sticks with glue and is fixed on the probe mount lower surface, and the detection light that light source produces shines on described sample by optical window sheets.
5. raise according to claim 4 the meat portable detection equipment, it is characterized in that, described light exit parts are: the spectrometer connecting duct, afterbody has internal thread, is used for connecting outside spectrometer coupled lens.
6. poultry meat portable detection equipment according to claim 5 is characterized in that:
When described lampshade was two, the center line of two lampshade center lines and optical window sheets center line, spectrometer connecting duct intersected at the center of optical window sheets.
7. poultry meat portable detection equipment according to claim 1, it is characterized in that, described gathering-device comprises: spectrometer, described spectrometer are micro spectrometer, its effective wave band is 350-1100nm, is used for the digital signal that obtains is analyzed and transmitted to spectral signal to processor.
8. poultry meat portable detection equipment according to claim 1 is characterized in that:
Described gathering-device also comprises: coupled lens or optical fiber, be used for connecting described light exit parts, and converging the spectral signal that the light source irradiation sample produces is directional light, then transfers to spectrometer analysis.
9. poultry meat portable detection equipment according to claim 1 is characterized in that:
Described processor comprises: ARM, DSP or single-chip microcomputer.
10. method of utilizing the described poultry meat of any one portable detection equipment test sample in claim 1 to 9 comprises:
In the airtight darkroom of detection probe, the detection light that light source is produced exposes to sample;
Sample reception detects the spectral signal that produces after light and exports by the light exit parts;
Spectrometer is collected the spectral signal that produces and is treated to digital signal, is sent to processor;
Processor is analyzed described digital signal and output detections result.
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| CN104897574A (en) * | 2015-06-23 | 2015-09-09 | 中国农业大学 | Integrated optical portable detector for agricultural and livestock products |
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Application publication date: 20131113 |