CN103063137A - Medicine bottle measuring system based on machine vision and measuring system thereof - Google Patents
Medicine bottle measuring system based on machine vision and measuring system thereof Download PDFInfo
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Abstract
The invention discloses a medicine bottle measuring system based on machine vision and a measuring system thereof, wherein the medicine bottle measuring system based on the machine vision comprises an image collecting device, a control device, a thing carrying rotary plate, a laser scanner and a light emitting diode (LED) backlight source, wherein the image collecting device is fixed right above the thing carrying rotary plate, the control device is connected with the image collecting device, the LED backlight source is arranged on the outer side of the thing carrying rotary plate, and the laser scanner is fixed next to the LED backlight source. According to the measuring method, characteristic parameters of a medicine bottle can be precisely measured so that a mechanical arm can precisely capture, open the medicine bottle and prepare medicine liquid, and therefore workload of medicine dispersing workers can be reduced, good economic benefit and social benefit are provided, and a market promotion prospect is good.
Description
Technical field
The present invention relates to the medicine field of measuring technique, relate in particular to a kind of medicine bottle measuring system and measuring method thereof based on machine vision.
Background technology
Dimensional measurement is the important application that digital picture is measured.Replace traditional contact type measurement in commercial production with the image-based non-contact measurement method, not only greatly improved work efficiency, and made the unification of processing, detection and control procedure become possibility.For the image-based dimensional measurement, its measuring accuracy is subject to the impact of following three aspects:: one, the object plane resolution of camera system; Two, the demarcation of camera system and error correction precision; Three, the bearing accuracy at measured target edge in the image.
At present, domestic to medicine bottle all size size and open defect almost all by manual detection, working strength is large, the effect of detection is unstable.The glass product of more external developed countries has been brought into use the testing equipment of computer vision.But a whole set of external non-contact detecting equipment price is extremely expensive.
In view of this, prior art haves much room for improvement and improves.
Summary of the invention
In view of the deficiencies in the prior art, the object of the invention is to provide a kind of medicine bottle measuring system and measuring method thereof based on machine vision.Be intended to solve in the prior art vial size by manually detecting, thereby the efficient of bringing is low, detect the problem such as poor effect.
Technical scheme of the present invention is as follows:
A kind of medicine bottle measuring system based on machine vision wherein, comprising:
Image collecting device be used for to gather the image information of medicine bottle, and described image information is sent in the following control device;
Control device is used for described image information is processed, and judges the parameters for shape characteristic of medicine bottle, then sends relevant instruction and moves accordingly to the robot that makes up a prescription;
The loading rotating disk is used for transmitting medicine bottle;
Laser scanner for the medicine bar code of scanning medicine bottle, is determined type and the position of described medicine bottle;
The LED-backlit source, the contrast for the background that strengthens medicine bottle reduces the impact of ambient light;
Described image collecting device be fixed on the loading rotating disk directly over, control device connects image collecting device, the LED-backlit source is arranged on the outside of loading rotating disk, laser scanner is fixed on the next door in LED-backlit source.
Preferably, described medicine bottle measuring system based on machine vision, wherein, described image collector is set to industrial camera; Described control device is industrial control computer.
Preferably, described medicine bottle measuring system based on machine vision, wherein, described control device is processed specifically described image information and is comprised: image binaryzation, filtering, rim detection and dimensional measurement.
Preferably, described medicine bottle measuring system based on machine vision, wherein, described LED-backlit source is for being used for sending the red LED backlight of directional light, and it connects one and is used for regulating the light source controller of LED-backlit source light intensity; Described light source controller is fixed on the base.
Preferably, described medicine bottle measuring system based on machine vision wherein, is disposed with on the described control device:
Image processing module is used for described image information is processed, and it comprises: binary conversion treatment, medium filtering, rim detection and image tagged;
The dimensional measurement module is used for the mark according to image processing module, determines the size of medicine bottle.
A kind of measuring method of above-mentioned medicine bottle measuring system based on machine vision wherein, may further comprise the steps:
S1, loading rotating disk begin to rotate under the driving of motor, and medicine bottle is sent to the scanning station;
S2, laser scanner scan the medicine bar code on the medicine bottle of scanning station, determine the medicine bottle type, and accurate its position, and corresponding data is sent to control device;
S3, loading rotating disk are sent to the collection station with medicine bottle, and image collecting device gathers the image information of medicine bottle, and described image information is sent to following control device;
S4, control device are processed described image information, judge the parameters for shape characteristic of medicine bottle, then send relevant instruction and move accordingly to the robot that makes up a prescription.
Preferably, the measuring method of described medicine bottle measuring system based on machine vision wherein, also comprises among the described step S4: gather the standard component data message by image collecting device, described medicine bottle measuring system is demarcated.
Preferably, the measuring method of described medicine bottle measuring system based on machine vision, wherein, also comprise among the described step S3: directional light is sent in the LED-backlit source, strengthens medicine bottle in the contrast that gathers background on the station.
Preferably, the measuring method of described medicine bottle measuring system based on machine vision, wherein, control device is processed described image information among the described step S4, and the parameters for shape characteristic of judging medicine bottle specifically comprises:
S41, described image information is carried out binary conversion treatment;
S42, the image after the binary conversion treatment is carried out filtering process, remove the interference on the image;
After S43, filtering are finished, image is carried out rim detection, obtain the edge contour of medicine bottle;
S44, the left and right edge line of medicine bottle is carried out mark, calculate the number of pixels between the left and right edge line, then calculate the size on the medicine bottle left and right directions;
S45, the upper and lower edge line of medicine bottle is carried out mark, calculate the number of pixels between the upper and lower edge line, then calculate the height of medicine bottle.
Preferably, the measuring method of described medicine bottle measuring system based on machine vision wherein, also comprises among the described step S2: when the article that go out when laser scanner scans are not medicine bottle, stop to measure.
Beneficial effect:
The application's medicine bottle measuring system and measuring method thereof based on machine vision, can measure exactly the characteristic parameter of medicine bottle, so that accurately crawl of mechanical arm, opening medical bottle and preparating liquid, and then can reduce the personnel's of making up a prescription workload, have good economic benefit and social benefit, the marketing prospect is better.
Description of drawings
Fig. 1 is the application's the synoptic diagram based on the embodiment of the medicine bottle measuring system of machine vision.
Fig. 2 is the application's the process flow diagram based on the measuring method of the medicine bottle measuring system of machine vision.
Embodiment
The invention provides a kind of medicine bottle measuring system and measuring method thereof based on machine vision, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, below the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
See also Fig. 1, it is the application's the synoptic diagram based on the embodiment of the medicine bottle measuring system of machine vision.As shown in the figure, described medicine bottle measuring system based on machine vision comprises: image collecting device 100, control device 200, loading rotating disk 300, laser scanner (not shown) and LED-backlit source 500.Wherein, described image collecting device 100 be fixed on loading rotating disk 300 directly over, control device 200 connects among the image collecting device 100(figure and represents to connect with schematic lines, it also can adopt the wireless connections mode), LED-backlit source 500 is arranged on the outside of loading rotating disk 300, and laser scanner 400 is fixed on the next door in LED-backlit source 500.
Specifically, described image collecting device 100 is used for gathering the image information of medicine bottle 10, and described image information is sent in the control device 200, and in the present embodiment, described image collecting device 100 is industrial camera; Described control device 200 is industrial control computer, and industrial camera links to each other with industrial control computer by the USB line.Described control device 200 is used for described image information is processed, and judges the parameters for shape characteristic of medicine bottle, then sends relevant instruction and moves accordingly to the robot that makes up a prescription, and concrete image processing process can describe in detail follow-up.Described loading rotating disk 300 is used for transmitting medicine bottle (driving rotation by motor 310), it also comprises medicine anchor clamps, described medicine anchor clamps are mainly used to the medicine that clamping places, this medicine fixture unit has the self-adaptation regulatory function, automatically adjusting size comes the medicine bottle of the different sizes of clamping, described loading rotating disk 300 is mainly used to transmit medical instrument or medicine bottle arrives the position of appointment, in order to carry out next step operation.Described laser scanner 400 is used for the medicine bar code of scanning medicine bottle, determine type and the position of described medicine bottle, specifically, laser scanner is fixed on the next door in LED-backlit source 500, is mainly used in scanning the medicine bar code of the medicine bottle that loading rotating disk 300 transmits, in order to determine that these article are medical instrument or medicine bottle, if be medicine bottle, can also distinguish that it is ampoule bottle or cillin bottle, accurate its position then is for subsequent operation provides data.Described LED-backlit source 500 is used for the contrast of the background of enhancing medicine bottle, reduce the impact of ambient light, it is arranged on the fixed support 600, in the present embodiment, adopt in described LED-backlit source 500 is red LED backlight (certainly, other colors also can), its penetration capacity is very strong, and its only directional light of sending, imaging effect is very good, and the image that obtains is also more clear.In the present embodiment, described LED-backlit source 500 connects a light source controller, and light source controller is fixed on the base, is mainly used to regulate the light intensity in LED-backlit source, makes it send the directional light of different brightness under different occasions, different environment.
Wherein, the processing of 200 pairs of image informations of control device is keys of the present invention.In the present embodiment, be disposed with on the described control device: image processing module and dimensional measurement module, described image processing module are used for described image information is processed, and it comprises: binary conversion treatment, medium filtering, rim detection and image tagged; Described dimensional measurement module is used for the mark according to image processing module, determines the size of medicine bottle.
In the present embodiment, when laser scanner scans to medicine bottle be ampoule bottle, then place it in ad-hoc location between industrial camera and the LED-backlit source by the loading rotating disk, then trigger industrial camera and catch image, further carry out images match, confirm its whether ampoule bottle, and then carry out image binaryzation, filtering, edge extracting and dimensional measurement, then determine its diameter, bottleneck position etc., wherein in dimensional measurement, with yellow line its left hand edge is marked first, then with green line its right hand edge is marked, again by calculating the diameter of medicine bottle.For the measurement of bottleneck position, draw the bottleneck position of surveying by left hand edge by series of algorithms first, draw again the bottleneck position of surveying by right hand edge, last again according to the measurement result of left and right sides bottleneck, determine the final bottleneck position of this medicine bottle.
When the medicine bottle that scans is cillin bottle, then place it in ad-hoc location between industrial camera and the LED-backlit source by the loading rotating disk, then trigger industrial camera and catch image, further carry out images match, confirm its whether cillin bottle, and then carry out image binaryzation, filtering, edge extracting and dimensional measurement, then determine its bottleneck position, wherein in dimensional measurement, with yellow line its left hand edge is marked first, then with green line its right hand edge is marked, again by calculating the diameter of medicine bottle.For the measurement of bottleneck position, draw the bottleneck position of surveying by left hand edge by series of algorithms first, draw again the bottleneck position of surveying by right hand edge, last again according to the measurement result of left and right sides bottleneck, determine the final bottleneck position of this medicine bottle.
The present invention also provides a kind of measuring method of above-mentioned medicine bottle measuring system based on machine vision, as shown in Figure 2, may further comprise the steps:
S1, loading rotating disk begin to rotate under the driving of motor, and medicine bottle is sent to the scanning station;
S2, laser scanner scan the medicine bar code on the medicine bottle of scanning station, determine the medicine bottle type, and accurate its position, and corresponding data is sent to control device;
S3, loading rotating disk are sent to the collection station with medicine bottle, and image collecting device gathers the image information of medicine bottle, and described image information is sent to following control device;
S4, control device are processed described image information, judge the parameters for shape characteristic of medicine bottle, then send relevant instruction and move accordingly to the robot that makes up a prescription.
Further, also comprise among the described step S3: directional light is sent in the LED-backlit source, strengthens medicine bottle in the contrast that gathers background on the station.In addition, also comprise among the described step S4: gather the standard component data message by image collecting device, described medicine bottle measuring system is demarcated.
In the present embodiment, calibration process is as follows: the label taking fiducial mark is decided medicine bottle, and such as high H=30 millimeter, diameter W=30 millimeter is put on the loading rotating disk; In one week of turntable rotation, laser scanner carries out bar code scan to the medicine bottle on the rotating disk, and computing machine is identified the data of its scanning, confirm as standard vial, and the start-up system calibrating procedure, wherein calibrating procedure is consistent with Image Information Processing program among the step S4, and the below can be described in detail.
Further, control device is processed described image information among the described step S4, and the parameters for shape characteristic of judging medicine bottle specifically comprises:
S41, described image information is carried out binary conversion treatment;
S42, the image after the binary conversion treatment is carried out filtering process, remove the interference on the image;
After S43, filtering are finished, image is carried out rim detection, obtain the edge contour of medicine bottle;
S44, the left and right edge line of medicine bottle is carried out mark, calculate the number of pixels between the left and right edge line, then calculate the size on the medicine bottle left and right directions;
S45, the upper and lower edge line of medicine bottle is carried out mark, calculate the number of pixels between the upper and lower edge line, then calculate the height of medicine bottle.
The below specifically describes for above-mentioned steps respectively:
At first, computing machine carries out binary conversion treatment to the image of catching, and the method for binaryzation is a lot, adopts the gray level threshold segmentation method in the native system, and algorithm is simple, fast operation, and efficient is high; Its expression is:
Wherein, T is threshold value, the pictorial element of g (i, j)=1 expression target object, the pictorial element of g (i, j)=0 expression background.
After the binaryzation, image is carried out filtering process; Remove the medicine bottle image in formation, collection and receiving course, the interference of existence is such as background, light illumination and the signal transmission etc. of complexity; Native system adopts medium filtering that image is processed, and through many experiments, treatment effect is good; After filtering is finished, image is carried out rim detection, obtain the edge contour of medicine bottle.
After obtaining the medicine bottle edge contour, the left and right edge line of medicine bottle is carried out mark, calculate the number of pixels between the left and right edge line, such as N=30; Then as can be known, on left and right direction, the relation between pixel N and the medicine bottle physical size is as follows:
W=30/30*N; Wherein, W is medicine bottle diameter/millimeter, N be pixel/.
In like manner, can calculate at upper and lower and make progress the relation between medicine bottle height and the pixel:
H=30/30*N; Wherein, H is medicine bottle height/millimeter, N be pixel/.
Further, also comprise among the described step S2: the article that go out when laser scanner scans be not medicine bottle (such as: be medical instrument or other products) time, stop to measure.
In sum, medicine bottle measuring system and measuring method thereof based on machine vision of the present invention, wherein, described medicine bottle measuring system based on machine vision comprises: image collecting device, control device, loading rotating disk, laser scanner and LED-backlit source.Wherein, described image collecting device be fixed on the loading rotating disk directly over, control device connects image collecting device, the LED-backlit source is arranged on the outside of loading rotating disk, laser scanner is fixed on the next door in LED-backlit source.Described measuring method can be measured the characteristic parameter of medicine bottle exactly, so that accurately crawl of mechanical arm, opening medical bottle and preparating liquid, and then can reduce the personnel's of making up a prescription workload, has good economic benefit and social benefit, and the marketing prospect is better.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. the medicine bottle measuring system based on machine vision is characterized in that, comprising:
Image collecting device be used for to gather the image information of medicine bottle, and described image information is sent in the following control device;
Control device is used for described image information is processed, and judges the parameters for shape characteristic of medicine bottle, then sends relevant instruction and moves accordingly to the robot that makes up a prescription;
The loading rotating disk is used for transmitting medicine bottle;
Laser scanner for the medicine bar code of scanning medicine bottle, is determined type and the position of described medicine bottle;
The LED-backlit source, the contrast for the background that strengthens medicine bottle reduces the impact of ambient light;
Described image collecting device be fixed on the loading rotating disk directly over, control device connects image collecting device, the LED-backlit source is arranged on the outside of loading rotating disk, laser scanner is fixed on the next door in LED-backlit source.
2. the medicine bottle measuring system based on machine vision according to claim 1 is characterized in that described image collector is set to industrial camera; Described control device is industrial control computer.
3. the medicine bottle measuring system based on machine vision according to claim 1 is characterized in that, described control device is processed specifically described image information and comprised: image binaryzation, filtering, rim detection and dimensional measurement.
4. the medicine bottle measuring system based on machine vision according to claim 1 is characterized in that, described LED-backlit source is for being used for sending the red LED backlight of directional light, and it connects one and is used for regulating the light source controller of LED-backlit source light intensity; Described light source controller is fixed on the base.
5. the medicine bottle measuring system based on machine vision according to claim 1 is characterized in that, is disposed with on the described control device:
Image processing module is used for described image information is processed, and it comprises: binary conversion treatment, medium filtering, rim detection and image tagged;
The dimensional measurement module is used for the mark according to image processing module, determines the size of medicine bottle.
6. the measuring method of the medicine bottle measuring system based on machine vision claimed in claim 1 is characterized in that, may further comprise the steps:
S1, loading rotating disk begin to rotate under the driving of motor, and medicine bottle is sent to the scanning station;
S2, laser scanner scan the medicine bar code on the medicine bottle of scanning station, determine the medicine bottle type, and accurate its position, and corresponding data is sent to control device;
S3, loading rotating disk are sent to the collection station with medicine bottle, and image collecting device gathers the image information of medicine bottle, and described image information is sent to following control device;
S4, control device are processed described image information, judge the parameters for shape characteristic of medicine bottle, then send relevant instruction and move accordingly to the robot that makes up a prescription.
7. the measuring method of the medicine bottle measuring system based on machine vision according to claim 6 is characterized in that, also comprises among the described step S4: gather the standard component data message by image collecting device, described medicine bottle measuring system is demarcated.
8. the measuring method of the medicine bottle measuring system based on machine vision according to claim 6 is characterized in that also comprise among the described step S3: directional light is sent in the LED-backlit source, strengthens medicine bottle in the contrast that gathers background on the station.
9. the measuring method of the medicine bottle measuring system based on machine vision according to claim 6 is characterized in that control device is processed described image information among the described step S4, and the parameters for shape characteristic of judging medicine bottle specifically comprises:
S41, described image information is carried out binary conversion treatment;
S42, the image after the binary conversion treatment is carried out filtering process, remove the interference on the image;
After S43, filtering are finished, image is carried out rim detection, obtain the edge contour of medicine bottle;
S44, the left and right edge line of medicine bottle is carried out mark, calculate the number of pixels between the left and right edge line, then calculate the size on the medicine bottle left and right directions;
S45, the upper and lower edge line of medicine bottle is carried out mark, calculate the number of pixels between the upper and lower edge line, then calculate the height of medicine bottle.
10. the measuring method of the medicine bottle measuring system based on machine vision according to claim 6 is characterized in that, also comprises among the described step S2: when the article that go out when laser scanner scans are not medicine bottle, stop to measure.
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| CN107014290A (en) * | 2016-01-27 | 2017-08-04 | 深圳市卫邦科技有限公司 | A kind of clamping medicine bottle aligning method and system |
| CN106372633A (en) * | 2016-09-07 | 2017-02-01 | 张勇 | Liquefied petroleum gas storage bottle production tracking monitoring apparatus and method |
| CN107041843A (en) * | 2017-02-09 | 2017-08-15 | 深圳市卫邦科技有限公司 | Medicine aspirates control method and device |
| CN107041843B (en) * | 2017-02-09 | 2021-03-26 | 深圳市卫邦科技有限公司 | Medicine suction control method and device |
| CN107213019A (en) * | 2017-06-01 | 2017-09-29 | 张坚 | Medicine distributing device and method |
| CN108241815A (en) * | 2017-11-10 | 2018-07-03 | 精华电子(苏州)有限公司 | Image collecting device and image-pickup method |
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| CN113432531A (en) * | 2021-06-22 | 2021-09-24 | 广东工业大学 | Bottle blank size measuring method |
| CN114910924A (en) * | 2022-06-09 | 2022-08-16 | 四川先通原子医药科技有限公司 | Medicine bottle placing device and method and application thereof |
| CN114910924B (en) * | 2022-06-09 | 2023-02-07 | 四川先通原子医药科技有限公司 | Medicine bottle placing device and method and application thereof |
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