CN103776775B - A kind of meat quality pick-up unit be installed in freezer - Google Patents
A kind of meat quality pick-up unit be installed in freezer Download PDFInfo
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- CN103776775B CN103776775B CN201410040300.2A CN201410040300A CN103776775B CN 103776775 B CN103776775 B CN 103776775B CN 201410040300 A CN201410040300 A CN 201410040300A CN 103776775 B CN103776775 B CN 103776775B
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Abstract
The invention discloses a kind of detection device be installed in freezer, comprise the computer be located at outside freezer, be located at EO-1 hyperion scanning system, horizontal translational components, vertical movement component and mobile platform in freezer; Horizontal translational components, vertical movement component are respectively used to the level, the vertical movement that control EO-1 hyperion scanning system, and described EO-1 hyperion scanning system, the first motor, the second motor are connected with computer respectively with the 3rd motor.The detection device be installed in freezer of the present invention can reduce the interference of external condition, saves the manpower of carrying sample, convenient and swift, avoids the hardship that operating personnel pass in and out the severe cold that freezer suffers.
Description
Technical field
The present invention relates to the device gathering meat hyperspectral information, particularly a kind of meat quality pick-up unit be installed in freezer.
Background technology
Along with the progress of science and technology, the hyperspectral technique having merged spectrum and aerial image relies on its ability that is qualitative, quantitative and that locate, be applied to more and more in the quality testing of food and agricultural byproducts, classification and classification, there is the outstanding advantages such as quick, harmless.At present, the Quality Detection of meat adopts the report of hyperspectral technique continue to increase, and accuracy of detection is more and more higher, sensing range is more and more wider.As Chinese patent CN200710178609.8 discloses a kind of method utilizing ultra-optical spectrum imaging system to detect meat tenderness; Chinese patent CN200710178609 discloses ultra-optical spectrum imaging system and the detection method of meat tenderness Non-Destructive Testing; Chinese patent CN200610097857 discloses agricultural and animal products lossless detection method based on hyper-spectral image technique and device.Chinese patent CN201110060095.2 discloses the method that quick nondestructive detects Chilled Meats total plate count.
But EO-1 hyperion is applied aborning and is only in the starting stage, a lot of aspect and actual production in conjunction with undesirable.The first step that EO-1 hyperion detects gathers spectral image information.EO-1 hyperion instrument is placed in a lighttight case (light room) by existing hyper-spectral data gathering system mostly, is put in by object on objective table, by translation objective table, realizes EO-1 hyperion camera lining by line scan to object, finally obtains high spectrum image.This hyper-spectral data gathering device, at detection, especially has inconvenience part, is mainly manifested in large detection in slaughterhouse:
(1) volume of EO-1 hyperion case and the load-bearing of article carrying platform limited, make bulk trunk can not put case interscan into.Cut into fritter to detect, then affect commodity value.
(2) EO-1 hyperion detection technique is with noncontact, fast, not damaged is famous, and then existing EO-1 hyperion system allows food be placed on objective table to scan, and inevitably allows Food Contact pollutant.
(3) animal carcasses deepfreeze in freezing locker mostly, when carrying out spectral scan, taking meat into taking out, will produce temperature fluctuation, easily cause meat putrid and deteriorated.
(4) mobile bulk meat time-consuming, effort, inefficiency, meanwhile, turnover freezer makes workman stand the hardship of severe cold.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art with not enough, the object of the present invention is to provide a kind of meat quality pick-up unit be installed in freezer, the operation to EO-1 hyperion instrument and computing can be completed outside freezer, complete testing process, make workman from the hardship of severe cold, can be used for the conventional indexs such as the PH of meat, tenderness, microorganism and measure and the detection of the overall target such as meat classification, postmortem aging situation.
Object of the present invention is achieved through the following technical solutions:
Be installed on the meat quality pick-up unit in freezer, comprise the computer be located at outside freezer, be located at EO-1 hyperion scanning system, horizontal translational components, vertical movement component and the mobile platform in freezer;
Described horizontal translational components comprises two horizontal rail, two fixed parts, the first motor, the second motor, the first screw rod, bearing and pulleys, described two horizontal rail are individually fixed in the side walls of freezer, the two ends of described bearing are each passed through two pulleys being arranged at two horizontal rail, and are fixedly connected with two pulleys; The two ends of described bearing are each passed through two fixed parts; The two ends of described first screw rod are threaded connection with two fixed parts respectively; Described first screw rod, through mobile platform, is threaded with mobile platform; Described bearing is through mobile platform; Described bearing is under the driving of the second motor, and band travelling block moves in the direction of the x axis along horizontal rail, bearing and mobile platform, fixed part relative sliding; Described first screw rod, under the driving of the first motor, drives mobile platform to move in y-axis direction;
Described vertical movement component comprises and is fixed on the second screw rod below mobile platform and the 3rd motor, and described EO-1 hyperion scanning system is fixed on the second screw rod; Described second screw rod drives EO-1 hyperion scanning system to move in the vertical direction under the driving of the 3rd motor;
Described EO-1 hyperion scanning system, the first motor, the second motor are connected with computer respectively with the 3rd motor.
Described EO-1 hyperion scanning system comprises scanning platform, EO-1 hyperion instrument, light source and camera, and described EO-1 hyperion instrument, light source and camera are fixedly mounted on scanning platform.
Described EO-1 hyperion instrument comprises camera lens, narrow slit, spectrometer and CCD digital camera.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) scanning system of the meat quality pick-up unit be installed in freezer of the present invention is in freezer, the interference of external condition (temperature, humidity, light etc.) can be reduced, adopt the mode of EO-1 hyperion instrument movement to scan, save the manpower of carrying sample, convenient and swift.
(2) operating system of the meat quality pick-up unit be installed in freezer of the present invention, arithmetic system are outside freezer, avoid the hardship that operating personnel suffer freezer severe cold.
(3) be of the present inventionly installed on meat quality pick-up unit in freezer in collection spectroscopy procedure, mobile EO-1 hyperion instrument and keep poultry meat trunk to hang in freezer motionless all the time, avoid the meat temperature difference to change and contact stain.
(4) the meat quality pick-up unit be installed in freezer of the present invention, utilize lighttight freezing locker to form natural light room, therefore this device does not need to build light room specially.
(5) in the present invention, EO-1 hyperion instrument can along horizontal rail and vertical track, move to freezer optional position, arbitrary height scans meat, detect, camera can help operating personnel to determine position and the height at EO-1 hyperion instrument place, guarantees quick, accurate mobile EO-1 hyperion instrument and makes it just to target trunk.
Accompanying drawing explanation
Fig. 1 is the structural representation of the meat quality pick-up unit be installed in freezer of the present invention.
Fig. 2 is the vertical view of the meat quality pick-up unit be installed in freezer of the present invention.
Fig. 3 be adopt the present embodiment be installed on the process flow diagram that the meat quality pick-up unit in freezer detects meat in freezing locker.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Fig. 1 ~ 2, the meat quality pick-up unit be installed in freezer of the present embodiment, comprises the computer 1 be located at outside freezer, is located at EO-1 hyperion scanning system, horizontal translational components, vertical movement component and the mobile platform 8 in freezer; Described horizontal translational components comprises two horizontal rail 3, two fixed part 17, first motor 6, second motor 4, first screw rods 7, bearing 5 and pulleys, described two horizontal rail 3 are individually fixed in the side walls of freezer, the two ends of described bearing 5 are each passed through two pulleys 18 being arranged at two horizontal rail 3, and are fixedly connected with two pulleys 18; The two ends of described bearing 5 are each passed through two fixed parts 17; The two ends of described first screw rod 7 are threaded connection with two fixed parts 17 respectively; Described first screw rod 17, through mobile platform 8, is threaded with mobile platform 8; Described bearing 5 is through mobile platform 8; Described bearing 5 is under the driving of the second motor 4, and band travelling block 18 moves in the direction of the x axis along horizontal rail 3, bearing 5 and mobile platform 8, fixed part 17 relative sliding; Described first screw rod 7, under the driving of the first motor 6, drives mobile platform 8 to move in y-axis direction; Described EO-1 hyperion scanning system comprises scanning platform 10, EO-1 hyperion instrument 15, light source 13 and camera 14, and described EO-1 hyperion instrument 15, light source 13 and camera 14 are fixedly mounted on scanning platform 10; Described EO-1 hyperion instrument 15 comprises camera lens, narrow slit, spectrometer and CCD digital camera.
Described vertical movement component comprises and is fixed on the second screw rod 12 below mobile platform and the 3rd motor 11, and described EO-1 hyperion scanning system is fixed on the second screw rod 12; Described second screw rod 12 drives EO-1 hyperion scanning system to move in the vertical direction along vertical track 9 under the driving of the 3rd motor 11;
Described EO-1 hyperion scanning system, the first motor 6, second motor 4 are connected with computer respectively by data line 2 with the 3rd motor 11.
The operating process being installed on the meat quality pick-up unit in freezer of the present embodiment is as follows:
Smear standard white plate and blackboard in freezer wall somewhere, before scanning samples, open computer 1 and operating system thereof, mobile EO-1 hyperion instrument 15 is to black-white board place.Open light source 13 scanning standard blank, close the rear scanning standard blackboard of light source 13, complete the spectrum check and correction of EO-1 hyperion.
During scanning meat, open light source 13, operate the second motor 4 and be with travelling block 18 at horizontal rail 3(x direction of principal axis) upper mobile.Operating the first motor 6 can make the first screw rod 7 rotate, and mobile platform 8 is moved in the y-axis direction.The target trunk 16 that will scan is selected by the observation of camera 14, mobile platform 8 is allowed to reach the site being applicable to scanning, operating the 3rd motor 11 makes the second screw rod 12 rotate, scanning platform 10 is moved, the EO-1 hyperion instrument 15 on scanning platform 10 thus the spectrum picture collection completed trunk 16 from top to bottom along vertical track 9.Spectrum picture is sent in computer 1 by data line 2, carries out spectral analysis, carries out respective handling to meat.
The meat quality pick-up unit be installed in freezer of the present embodiment is adopted to detect the degree of ripeness of meat in freezing locker below:
Collect 100 beef in slaughterhouse and butcher information, by safety quarantine the Niu Jing that is applicable to butchering hit dizzy, bloodletting, peeling, separation internal organ, split the flow process such as half after enter freezing locker, cold store temperature is set as 4 DEG C, and humidity is 85%.Immediately pH value, the detection of tenderness and spectral scan are carried out to meat.The degree of ripeness of trunk can be represented with a certain privileged site, in the present embodiment, represent trunk degree of ripeness with stern meat.
With the meat quality pick-up unit be installed in freezer of the present embodiment, EO-1 hyperion scanning is carried out to meat, EO-1 hyperion instrument is by near infrared spectrometer (SpectralImaging company limited of Finland, wavelength 900-2500nm, wavelength resolution is 6nm) and CCD camera (Belgian XenicsInfraredSolutions company, pixel is 320 × 300) formation.Camera exposure speed is 2ms/ time, and EO-1 hyperion is near-infrared wavelength (900-1700nm), and pixel is 320 × 256, and wavelength resolution is 6nm.After scanning, cut from ox trunk rump the beef clod that length, width and height are respectively 6cm, 3cm, 3cm.PH value is used to survey instrument (Orion3Star, ThermoFisherScientificInc., the U.S.) measure the pH value of sample, probe is inserted in meat sample, pH value meter electrode is fully contacted with the tissue fluid in muscle, record after pH value meter stable reading, each sample measures 3 times at different parts, gets the pH value measuring this sample of mean value.Carry out tenderness measurement again, undertaken, with Texture instrument (Instron, Model4301 by Ministry of Agriculture's industry standard one NY/Tll80 1 " the mensuration shearing force determination method of meat tenderness ", Britain) to each sample duplicate measurements 3 times, average is as the tenderness (unit N) of this sample.
Again EO-1 hyperion scanning and property measurement are carried out to beef after four hours.After this timing repeating data collection, butchering latter first 2 days is gather once for 4 hours, within after 2 days 8 hours, gathers once.When the pH value of meat, tenderness value return to amplitude of variation very little time, artificial cognition meat is ripe, meat is transported freezer, end data collection.Consider the economic factors in slaughterhouse, in fixed 18 days refrigeration time limits, terminate the data acquisition of whole sample.
The regression model method for building up following (as shown in Figure 3) of single time point: (1) Pretreated spectra, averages the spectrum at ox trunk stern meat place.(2) PCA analysis is carried out to the spectrum of all samples, extract front 10 major components.(3) set up spectrum 10 major components and meat pH value, tenderness value spectrum regression model respectively by support vector machine (SVM), the common kernel function of SVM has four kinds, selects radial basis function as kernel function in present case.(4) the punishment parameter C of support vector machine and nuclear parameter g is the important parameter determining training degree of accuracy, by particle cluster algorithm (POS), optimizing is carried out to 2 of spectral model parameters in the present invention, for the 4th hour tenderness model, when optimum results is C=2.37g=77.52, the regression effect of model is best, coefficient R=0.91 of leave one cross validation (Leave-One-OutCross-Validation).(5) testing model, carries out correlation analysis by predicted value and measured value, and what reach significant correlation level thinks that model is successful, does not reach the adjustment modeling parameters of significant correlation level, modeling again.
According to time sequencing, repeat above modeling procedure, set up the meat pH value of different time points, tenderness value and spectrum regression model.
The measurement of fresh sample degree of ripeness: carry out timing spectral scan to fresh sample, imports the spectral model of corresponding time point by different time points spectroscopic data, calculate meat pH value, tenderness value.In chronological order predicted value is coupled together, draw pH value, the tenderness value change curve of beef, differentiate whether the maturation of meat completes according to change curve.Acid discharge, the tenderization of meat are defined as maturation to which kind of degree, and each producer can adjust according to actual conditions.After pH value being gone up in this example, pH value is greater than 6, and last three measured values are more or less the same in 0.3; Tenderness decrease beyond 30% than maximum tenderness simultaneously, and last three measured value deviations are not more than 5%.Ripe sale of dispatching from the factory, immature continuation refrigeration, detection, until the refrigeration deadline date.
Prepare 40 new samples in this experiment, carried out spectral scan and analysis, had 31 oxen to fulfil maturation ahead of schedule in 14 days, had 29 maturations in manual detection and these 31 samples of differentiation, differentiate correct 93.5%.Prove that the meat quality pick-up unit of the present embodiment is feasible in actual production.
Table 1 adopts the present invention to carry out the contrast of spectrum differentiation and manual detection result
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not limited by the examples; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (3)
1. be installed on the meat quality pick-up unit in freezer, it is characterized in that, comprise the computer be located at outside freezer, be located at EO-1 hyperion scanning system, horizontal translational components, vertical movement component and the mobile platform in freezer;
Described horizontal translational components comprises two horizontal rail, two fixed parts, the first motor, the second motor, the first screw rod, bearing and pulleys, described two horizontal rail are individually fixed in the side walls of freezer, the two ends of described bearing are each passed through two pulleys being arranged at two horizontal rail, and are fixedly connected with two pulleys; The two ends of described bearing are each passed through two fixed parts; The two ends of described first screw rod are threaded connection with two fixed parts respectively; Described first screw rod, through mobile platform, is threaded with mobile platform; Described bearing is through mobile platform; Described bearing is under the driving of the second motor, and band travelling block moves in the direction of the x axis along horizontal rail, bearing and mobile platform, fixed part relative sliding; Described first screw rod, under the driving of the first motor, drives mobile platform to move in y-axis direction;
Described vertical movement component comprises and is fixed on the second screw rod below mobile platform and the 3rd motor, and described EO-1 hyperion scanning system is fixed on the second screw rod; Described second screw rod drives EO-1 hyperion scanning system to move in the vertical direction under the driving of the 3rd motor;
Described EO-1 hyperion scanning system, the first motor, the second motor are connected with computer respectively with the 3rd motor.
2. the meat quality pick-up unit be installed in freezer according to claim 1, it is characterized in that, described EO-1 hyperion scanning system comprises scanning platform, EO-1 hyperion instrument, light source and camera, and described EO-1 hyperion instrument, light source and camera are fixedly mounted on scanning platform.
3. the meat quality pick-up unit be installed in freezer according to claim 2, is characterized in that, described EO-1 hyperion instrument comprises camera lens, narrow slit, spectrometer and CCD digital camera.
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| CN104374707B (en) * | 2014-08-18 | 2017-05-17 | 浙江工商大学 | Beef freshness detection device and detection method |
| CN104374704B (en) * | 2014-08-18 | 2017-11-17 | 浙江工商大学 | A kind of identifying meat freshness device and method |
| CN104374719B (en) * | 2014-08-18 | 2017-01-18 | 浙江工商大学 | New beef freshness rapid detection device and detection method |
| CN104374709B (en) * | 2014-08-18 | 2017-01-25 | 浙江工商大学 | Beef freshness rapid nondestructive detection device and detection method |
| CN104897581B (en) * | 2015-05-29 | 2018-07-20 | 华南理工大学 | The method and device of identification green meat, chilled meat and chilled meat based on EO-1 hyperion |
| US9739661B2 (en) * | 2015-06-30 | 2017-08-22 | Agilent Technologies, Inc. | Infrared imaging system with automatic referencing |
| CN105866063A (en) * | 2016-04-08 | 2016-08-17 | 北京工商大学 | Detection method for quality grade of sausage |
| CN108267409B (en) * | 2017-12-29 | 2020-05-22 | 北京农业智能装备技术研究中心 | Portable hyperspectral weed leaf herbicide identification optical device and method |
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