CN103056111A - Prawns quality detecting and classifying device based on machine vision technology - Google Patents
Prawns quality detecting and classifying device based on machine vision technology Download PDFInfo
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- CN103056111A CN103056111A CN2012105611341A CN201210561134A CN103056111A CN 103056111 A CN103056111 A CN 103056111A CN 2012105611341 A CN2012105611341 A CN 2012105611341A CN 201210561134 A CN201210561134 A CN 201210561134A CN 103056111 A CN103056111 A CN 103056111A
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Abstract
The invention discloses a prawns quality detecting and classifying device based on a machine vision technology. The prawns quality detecting and classifying device based on the machine vision technology include a laying-off system, an image acquisition system, a classifying mechanism, a conveyor belt, a computer system and a controller system. A camera is fixed at the top end of a lighting box which is fixed above the conveyor belt, and a white unsmooth coating is painted on inner walls of the lighting box. Light source is light-emitting diode (LED) soft strip type light source belts which are distributed on four inner walls of the lighting box. Light source illuminates upwards, and reflects to the surface of the prawn through the white coating of the inner walls. After processing the collected image in a real time, the computer obtains corresponding information of the quality characteristic of the prawns and classifies that, and then controls a spray valve through a controller. Passing through a corresponding spray valve, the prawns with a different quality classification are blown into a corresponding collecting groove, while the prawns not blown by the spray valve directly drop into the collecting groove arranged at the ends of the conveyor belt. The prawns quality detecting and classifying device based on the machine vision technology can detects and classifies the prawns with different quality classifications by quickly and accurately detecting the morphology and color characteristic of the prawns.
Description
Technical field
The present invention relates to a kind of detection grading plant, especially relate to a kind of prawn quality detection and classification device based on machine vision technique.
Background technology
China is world aquatic products big country, and product water outlet occupies considerable status in agricultural products in China outlet and foreign export, but also has many problems in the aquatic products industry of China at present, and the product total quality is not high.Prawn detects the outlet benefit that classification is conducive to improve prawn as a large main force in the aquatic products to its quality, has positive realistic meaning.Therefore the trade both sides mainly judge its grade according to the external sort of prawn such as indexs such as size, shape, color and luster, integralities in the current productive life, carry out classification according to the external sort of prawn and are necessary.Automation sorting/classifying equipoment all is to design according to relevant theory of mechanics mostly in the market, mainly carries out classification by thickness, the length of prawn.Domestic a lot of scholar has done relevant research in this respect.
Sun Ping (Chinese patent 87200587) etc. has invented a kind of prawn number of elements separator, is applicable to the sorting of prawn specification.Han Junming (Chinese patent 91202265.5) etc. is contained in paired roller on the pedestal, forms the slideway that differs in size between every pair of roller, thereby prawn is carried out classification according to the size of individuality.Zhang Jiaheng (Chinese patent 03202675.7) has invented a kind of Shrimp sorting machine, by regulating two gaps between the roller bearing, reaches the effect of classification.Yang Yixiang (Chinese patent 201020502942.7) etc. invent a kind of drum-type lobster classifying screen, and every layer of grid finedraw that rolls the cage cylinder designs according to the lobster grade scale.Peng Dequan (Chinese patent 200520054017.1) has invented a cover shrimp auto-manual digital control sorting machine, utilizes numerical control to preset computer and automatically controls the adjustment roller gap, so that the specification capable of regulating of classification is divided into from top to bottom 7 grades and dwindles successively.
Traditional mechanical type hierarchical approaches, maximum shortcoming are that the detection index is single.Machine vision technique is as the present advanced person's in Non-Destructive Testing aspect mainstream technology, not only can detect many indexes such as size, shape, color and luster, integralities simultaneously, and the degree of accuracy is high, the detection and the classification aspect that are applied to prawn not only can overcome above problem, and more meet the growth requirement of current techniques.Domestic prawn classifying equipoment based on machine vision yet there are no at present.
Summary of the invention
Deficiency for existing prawn classifying equipoment, the object of the present invention is to provide a kind of prawn quality detection and classification device based on machine vision technique, its integrated use plant equipment and computer software prawn carried out outward appearance detect, it has overcome the inadequate defective of single, the intelligent detection level of traditional detection index, so that testing result is more accurately with reliable.
The technical solution used in the present invention is:
The present invention includes blanking system, image capturing system, classification mechanism, transport tape, the department of computer science controller system of unifying; Wherein:
1) blanking system: comprise prawn feed hopper, two vibration feed appliances, two infrared sensors, the single-row draw-in groove of individual layer, guide groove and attitude adjusters; The first vibration feed appliance (is connected with stairstepping with transport tape with the second vibration feed appliance, guide groove downwards successively, the first vibration feed appliance top is provided with the prawn feed hopper, the feed end of the second vibration feed appliance is provided with the first infrared sensor, and the discharge end of the second vibration feed appliance is provided with the single-row draw-in groove of individual layer; The feed end top of transport tape is provided with the attitude adjuster, and the transport tape side is provided with the second infrared sensor;
2) image capturing system: comprise lighting box, camera and light source; Camera is fixed on the top of lighting box, the lighting box that inwall is coated with the adularescent reflectance coating is fixed on the transport tape top, and be positioned at outside the second infrared sensor, the light source of the soft stripe shape light belt of LED is arranged on four inwalls of lighting box, the lamppost of light source shines upward, by the reflection of inwall white coating, light is mapped to the prawn surface;
3) hierarchy system: comprise that three snifting valves and four connect the thing groove; One side of the transport tape in the lighting box outside is respectively equipped with the first snifting valve, the second snifting valve and the 3rd snifting valve, the opposite side of the transport tape in the lighting box outside is respectively equipped with first and connects thing groove, second and connect thing groove and the 3rd and connect the thing groove, it is corresponding one by one that three snifting valves and three connect the thing groove, and the 4th connects the thing groove is positioned at the transport tape discharge end;
4) department of computer science unifies the Lu Yuxiang mechatronics, and another road via controller system of computer system is electrically connected with the first snifting valve, the second snifting valve and the 3rd snifting valve respectively.
Described camera is the ace series acA640-100gc area array cameras that German Basler company produces, and camera lens is that the model that Japanese Xinghe (KOWA) company produces is the LM16JC camera lens.
Described light source is Shenzhen hundred million good photoelectricity YJ-LSF1210W72 of Co., Ltd adopting surface mounted LED soft light bars.
What its inwall of described lighting box used is the white high temperature film of general industry; Described transport tape is food grade white PVC belt; Described controller system is PLC.
Compare with the background prior art, the beneficial effect that the present invention has is:
The discharging opening of prawn feed hopper is rectangle among the present invention, prevents that the moment blanking is too many.The vibration feed appliance has certain gradient, every grade of vibration feed appliance hunting speed promotes step by step, thereby reduce step by step the quantity of prawn, can be according to concrete blanking-quantity, the number of suitable increase vibration feed appliance in order to prevent that prawn is piled up in subordinate's feed appliance, begins to be provided with infrared sensor in every grade of feed appliance from the second level, the hunting speed of feed appliance so that the control higher level is vibrated finally guarantees to only have in the afterbody vibration feed appliance prawn of minority.On the afterbody vibration feed appliance the single-row draw-in groove of individual layer is arranged, the lower end is connected to guide groove, has more effectively guaranteed to fall into transport tape and has only had single prawn.The attitude adjuster places the transport tape surface, but does not contact with transport tape.The grading software of processing image can detect simultaneously color, the profile of prawn and according to its image feature information with its classification.Classification mechanism can be divided into prawn different quality level Four, adopts the mode of air-blowing, prevents from prawn is damaged.This cover system combines machinery with image technique, need not manually-operated, and not only accuracy of detection is high.The operation of classification part non-contact type does not cause damage to prawn itself, and is easy to operate.If testing requirement changes, only need the software of image processing section is carried out corresponding modify, adjustable is strong.The detection index is various, the testing process process intelligent, and testing result more accurately and reliably.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Among the figure: 1, prawn feed hopper, the 2, first vibration feed appliance, the 3, first infrared sensor, 4, the second vibration feed appliance, 5, the single-row draw-in groove of individual layer, 6, guide groove, 7, the attitude adjuster, 8, the second infrared sensor, 9, lighting box, 10, camera, 11, light source, 12, the first snifting valve, 13, the second snifting valve, the 14, the 3rd snifting valve, 15, first connects the thing groove, 16, second connect the thing groove, 17, the 3rd connect the thing groove, the 18, the 4th connects the thing groove, and 19, transport tape, 20, computer system, 21, controller system.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Such as Fig. 1, Fig. 2, shown in Figure 3, the present invention includes blanking system, image capturing system, classification mechanism, transport tape, the department of computer science controller system of unifying; Wherein:
1) blanking system: comprise prawn feed hopper 1, two vibration feed appliances 2,4, two infrared sensors 3,8, the single-row draw-in groove 5 of individual layer, guide groove 6 and attitude adjusters 7; The first vibration feed appliance 2 is connected with stairstepping with the second vibrate feed appliance 4, guide groove 6 and transport tape 19 downwards successively, the first vibration feed appliance 2 tops are provided with prawn feed hopper 1, the discharge end that the feed end of the second vibration feed appliance 4 is provided with the first infrared sensor 3, the second vibration feed appliances 4 is provided with the single-row draw-in groove 5 of individual layer; The feed end top of transport tape 19 is provided with attitude adjuster 7, and transport tape 19 sides are provided with the second infrared sensor 3;
2) image capturing system: comprise lighting box 9, camera 10 and light source 11; Camera 10 is fixed on the top of lighting box 9, the lighting box 9 that inwall is coated with the adularescent reflectance coating is fixed on the transport tape top, and be positioned at the second infrared sensor 8 outsides, the light source 11 of the soft stripe shape light belt of LED is arranged on 9 four inwalls of lighting box, the lamppost of light source 11 shines upward, by the reflection of inwall white coating, light is mapped to the prawn surface;
3) hierarchy system: comprise that three snifting valves 12,13,14 and four connect thing groove 15,16,17,18; One side of the transport tape 19 in lighting box 9 outsides is respectively equipped with the first snifting valve 12, the second snifting valve 13 and the 3rd snifting valve 14, the opposite side of the transport tape 19 in lighting box 9 outsides is respectively equipped with first and connects thing groove 15, second and connect thing groove 16 and the 3rd and connect thing groove 17, it is corresponding one by one that three snifting valves and three connect the thing groove, and the 4th connects thing groove 18 is positioned at transport tape 19 discharge ends;
4) computer system 20 one tunnel is electrically connected with camera 10, and computer system 20 another road via controller systems 21 are electrically connected with the first snifting valve 12, the second snifting valve 13 and the 3rd snifting valve 14 respectively.
The ace series acA640-100gc area array cameras that the camera that uses among the embodiment is produced for German Basler company.Camera lens is that the model that Japanese Xinghe (KOWA) company produces is the LM16JC camera lens.Light source is Shenzhen hundred million good photoelectricity YJ-LSF1210W72 of Co., Ltd adopting surface mounted LED soft light bars.What the lighting box inwall used is the white high temperature film of general industry.Transport tape is food grade white PVC belt.Controller system is PLC.
Prawn in batches enters into the first vibration feed appliance 2 from prawn feed hopper 1; Because the equipment vibration, prawn drops down onto the second vibration feed appliance 4, the second vibration feed appliances 4 from the first vibration feed appliance 2 and accelerates vibration than the first vibration feed appliance, and prawn drops down onto guide groove 6 from the second vibration feed appliance 4 through the single-row draw-in groove 5 of individual layer.The single-row draw-in groove 5 of individual layer utilizes the method for restricted passage height, guarantees by the prawn of a shrimp height, to utilize simultaneously the method for width that restricts export, so that only have a prawn can pass through its outlet; Two vibration feed appliances all have the inclination of certain angle; The side of the second vibration feed appliance 4 is equipped with the first infrared sensor 3, its hunting speed according to the control of the prawn quantity on the current feed appliance the first vibration feed appliance 2 is regulated the blanking velocity of higher level's feed appliance, the charging rate that prevents current feed appliance is too fast, causes in subordinate's feed appliance prawn to be piled up.When the prawn quantity of the second 4 li of feed appliances of vibration too many, the shrimp body occurs when stacking, will trigger the first infrared sensor 3, make it send the motor of signal controlling the first vibration feed appliance 2, make the 2 temporary transient failures of oscillations of the first vibration feed appliance, until prawn quantity reduces, after stacks as high reduces first sensor 3 again can control engine so that the first vibration feed appliance 2 rework.Because two vibration feed appliances 2,4 acceleration are vibrated, and the single-row draw-in groove 5 of individual layer, in the greatly reduction of prawn quantity of the second vibration feed appliance 4 ends.Vibration feed appliance quantity can increase according to actual blanking-quantity, and optimum state is that the end of afterbody oscillator only has a prawn.For the situation that prevents non-single prawn occurs, being connected on below the second vibration feed appliance 4 is a guide groove 6 that can only have a prawn to pass through.By guide groove 6, only have single prawn to enter on the transport tape 19.Attitude adjuster 7 adjustable-angles utilize shrimp body and its collision friction, adjust the shrimp body stance adjustment of prawn is basically identical to cephlad-caudal and transport tape 19 traffic directions.
Prawn sends signal to camera 10 through the second infrared sensor 8, and when prawn reached camera 10 below, camera 10 was just captured the image of prawn.With image transmitting to computer system 20, process in real time by the computer system 20 inner image processing softwares that arrange, obtain corresponding prawn qualitative characteristics information and judge the affiliated rank of current prawn, computer system 20 again with communication to controller system 21, and then control in three snifting valves 12,13,14 one, when prawn arrives this snifting valve the place ahead, this snifting valve connects in the thing groove 15 accordingly with regard to jet prawn is blown into,, 16,17, the prawn that is not subject to air-blowing is directly fallen into connecing in the thing groove 18 of transport tape end.Altogether prawn can be divided into level Four.
Claims (4)
1. prawn quality detection and classification device based on machine vision technique is characterized in that: comprise blanking system, image capturing system, classification mechanism, transport tape, the department of computer science controller system of unifying; Wherein:
1) blanking system: comprise prawn feed hopper (1), two vibration feed appliances (2,4), two infrared sensors (3,8), the single-row draw-in groove of individual layer (5), guide groove (6) and attitude adjuster (7); The first vibration feed appliance (2) is connected with stairstepping with transport tape (19) with the second vibration feed appliance (4), guide groove (6) downwards successively, the first vibration feed appliance (2) top is provided with prawn feed hopper (1), the feed end of the second vibration feed appliance (4) is provided with the first infrared sensor (3), and the discharge end of the second vibration feed appliance (4) is provided with the single-row draw-in groove of individual layer (5); The feed end top of transport tape (19) is provided with attitude adjuster (7), and transport tape (19) side is provided with the second infrared sensor (3);
2) image capturing system: comprise lighting box (9), camera (10) and light source (11); Camera (10) is fixed on the top of lighting box (9), the lighting box (9) that inwall is coated with the adularescent reflectance coating is fixed on the transport tape top, and be positioned at outside the second infrared sensor (8), the light source (11) of the soft stripe shape light belt of LED is arranged on (9) four inwalls of lighting box, the lamppost of light source (11) shines upward, by the reflection of inwall white coating, light is mapped to the prawn surface;
3) hierarchy system: comprise that three snifting valves (12,13,14) and four connect thing groove (15,16,17,18); One side of the transport tape (19) in lighting box (9) outside is respectively equipped with the first snifting valve (12), the second snifting valve (13) and the 3rd snifting valve (14), the opposite side of the transport tape (19) in lighting box (9) outside is respectively equipped with first and connects thing groove (15), second and connect thing groove (16) and the 3rd and connect thing groove (17), it is corresponding one by one that three snifting valves and three connect the thing groove, and the 4th connects thing groove (18) is positioned at transport tape (19) discharge end;
4) computer system (20) a tunnel is electrically connected with camera (10), and another road via controller system (21) of computer system (20) is electrically connected with the first snifting valve (12), the second snifting valve (13) and the 3rd snifting valve (14) respectively.
2. a kind of prawn quality detection and classification device based on machine vision technique according to claim 1, it is characterized in that: the ace series acA640-100gc area array cameras that described camera (10) is produced for German Basler company, camera lens are that the model that Japanese Xinghe KOWA company produces is the LM16JC camera lens.
3. a kind of prawn quality detection and classification device based on machine vision technique according to claim 1, it is characterized in that: described light source (11) is Shenzhen hundred million good photoelectricity YJ-LSF1210W72 of Co., Ltd adopting surface mounted LED soft light bars.
4. a kind of prawn quality detection and classification device based on machine vision technique according to claim 1 is characterized in that: what its inwall of described lighting box (9) used is general industry white high temperature film; Described transport tape (19) is food grade white PVC belt, and controller system (21) is PLC.
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| CN105049700A (en) * | 2014-04-21 | 2015-11-11 | 昕芙旎雅有限公司 | Image data processing apparatus for parts feeder and parts feeder |
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| CN103056111B (en) | 2014-08-13 |
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