CN108655021A - A kind of online failure evaluation sorter of corn seed based on machine vision - Google Patents
A kind of online failure evaluation sorter of corn seed based on machine vision Download PDFInfo
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- CN108655021A CN108655021A CN201810433834.XA CN201810433834A CN108655021A CN 108655021 A CN108655021 A CN 108655021A CN 201810433834 A CN201810433834 A CN 201810433834A CN 108655021 A CN108655021 A CN 108655021A
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- seed
- corn seed
- sorter
- stepper motor
- failure evaluation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C2501/00—Sorting according to a characteristic or feature of the articles or material to be sorted
- B07C2501/0063—Using robots
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The present invention relates to mechanical vision inspection technology field, the online failure evaluation sorter of specially a kind of corn seed based on machine vision.Including feeding unit, conveying device, image collecting device, sorter, control system, dead axle experimental bench, recycling plants case.Its feature is as follows：By the online failure evaluation sorter of corn seed, dynamic image can be acquired and realize the online failure evaluation dynamic detection function of corn seed, broken corn seed is detached with qualified corn seed；Devise a kind of rotating disc type transport mechanism simple in structure；A kind of unqualified corn seed rejecting mechanism is devised, can accurately and effectively be rejected unqualified corn seed；Devise a kind of online failure evaluation classification control system of corn seed；The configuration of the present invention is simple, identification classification is accurate, efficient, effect is good.The full-automatic on-line real-time measuremen of corn seed can make detection of agricultural products more mechanization, automation, intelligence.
Description
Technical field
The present invention relates to mechanical vision inspection technology field, specially a kind of corn seed based on machine vision is broken online
Damage identification sorter.
Background technology
The corn cereal crops one of important as China started to become China the first generalized grain crop, tool in 2012
There is highly important strategic position.Since corn seed can chew etc. various factors production during harvest, storage because of machinery
Raw damage, directly affects the germination percentage and corn yield of corn seed, so damage testing must can not before the broadcasting of corn seed
It is few.This process can ensure corn seed germination rate, be of great significance to the volume increase of corn.
Compared with artificial detection technology, mechanical vision inspection technology has many advantages, such as that speed is fast, precision is high, reproducible,
There is wide application in quality of agricultural product field of non destructive testing.Artificial detection is replaced using mechanical vision inspection technology, is automatic
Change the inexorable trend of classification development.Cereal appearance quality detection technical research based on machine vision has higher theory value
And practical significance.The quality that maize seed grain is concentrated mainly on to the research of the corn seed based on machine vision domestic at present is reflected
Fixed, classification etc., and being concentrated mainly in static detection, do not occur degree of commercialization it is high be used for corn seed damage testing
Instrument and equipment.The quality of cereal appearance is detected and is studied using machine vision technique, to improving the city of China's grain
Field competitiveness is of great significance.
Invention content
The object of the present invention is to provide a kind of online failure evaluation sorters of corn seed based on machine vision, with reality
The automatic online detection of existing corn seed, damaged corn seed is separated from the corn seed of detection.
A kind of online failure evaluation sorter of corn seed based on machine vision includes mainly：Feeding unit
[1], conveying device [2], image collecting device [3], sorter [4], control system [5], dead axle experimental bench [6], recycling kind
Case [7].
The feeding unit, by finger-clipping type seed metering device [8], grain conductor [11], infrared emission sensor [10], transmission gear
Group [12], stepper motor a and its driver [14], mounting [9], seed-storage box [13] composition.Finger-clipping type seed metering device is vertically mounted on
On mounting, grain conductor goes out mounted on feed mechanism for seed at kind of mouth, and infrared emission sensor is mounted on grain conductor and exports both ends, transmission gear
Two gears of group are separately connected stepper motor output shaft and finger-clipping type seed metering device jackshaft, cooperation transmission.
The conveying device, by transmission turntable [14], driving gear set [15], stepper motor b and its driver [16] group
At.It transmits turntable to be mounted on dead axle experimental bench, transmits and connected with bearing among turntable and dead axle experimental bench, the active of gear set
On the output shaft of stepper motor, driven wheel is bonded on transmission turntable wheel, with transmission turntable concentric co-axial.Pass through stepping
Motor output power drives transmission turntable rotation using gear drive reduction of speed torque.
Described image harvester is made of LED annular light sources [17], camera [18], connecting screw [19].LED annulars
Light source is mounted on camera lens, and coaxial with camera optical axis, and camera optical axis is vertical with the driving turntable of conveying device, connects spiral shell
Camera is fixed on dead axle experimental bench by bar.
The sorter, the sorter are divided into Liang Ge mechanisms, damaged seed rejecting mechanism [20] and certified seed
Recovering mechanism [21], specifically by planting groove [22], folding bottom cover [23], hinge, magnet, stepper motor c [24], driving lever, company
Connect screw rod [25] composition.8 circular holes are separated on the transmission turntable of conveying device, between the center of circle of each two adjacent holes
Angle is 45 ° of downsides that planting groove is bonded in transmission turntable hole, and the both sides of hinge are respectively at planting groove and folding bottom
Lid is connected, and folding bottom cover is mounted on the downside of planting groove by hinge.2 blocks of magnet are separately mounted to folding bottom cover gab end
At the bottom end fluting of planting groove, the angle with hinge is 180 °, and driving lever is connected with the output shaft of stepper motor, stepping electricity
Machine is by connecting screw and is connected on the dead axle of dead axle experimental bench.
The control system includes：Computer, microcontroller, Image Acquisition and processing system, stepper motor drive Hardware Subdivision
Divide, power control system software section, image detection court verdict real-time Transmission are to power control system.
The dead axle experimental bench is the experimental bench of diameter of axle 10mm weight 2.5kg.
The recycling plants case includes that certified seed recycling plants case and broken corn seed recycle plants case, is respectively placed in damaged kind
Son is rejected below the folding bottom cover of position and certified seed is unified below the folding bottom cover of recovery position.
The beneficial effects of the invention are as follows：
(1) the present invention is based on mechanical vision inspection technologies, for corn seed because various during growth, harvest, storage etc.
Damaged problem is designed caused by factor, can effectively be isolated damaged corn seed from the corn seed of detection
Come, achievees the purpose that corn seed is selected.(2) it can realize the full-automatic on-line real-time measuremen of corn seed, be detached from manually, make
Detection of agricultural products more mechanization, automation, intelligence.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the online failure evaluation sorter of the corn seed based on machine vision.
Fig. 2 is a kind of feeding unit of the online failure evaluation sorter of the corn seed based on machine vision.
Fig. 3 is a kind of conveying device of the online failure evaluation sorter of the corn seed based on machine vision.
Fig. 4 is a kind of image collecting device of the online failure evaluation sorter of the corn seed based on machine vision.
Fig. 5 is a kind of sorter of the online failure evaluation sorter of the corn seed based on machine vision.
Specific implementation mode
The present invention is described in further detail for the embodiment provided below in conjunction with the accompanying drawings.
Referring to Fig.1, the online failure evaluation sorter of a kind of corn seed based on machine vision, main includes feeding dress
Set [1], conveying device [2], image collecting device [3], sorter [4], control system [5], dead axle experimental bench [6], recycling
Plants case [7].
Reference Fig. 2, a kind of feeding unit of the online failure evaluation sorter of corn seed based on machine vision, mainly
Including finger-clipping type seed metering device [8], grain conductor [11], infrared emission sensor [10], driving gear set [12], stepper motor a and
Its driver [14], mounting [9], seed-storage box [13].
With reference to Fig. 3, a kind of conveying device of the online failure evaluation sorter of corn seed based on machine vision.Mainly
Including：Transmit turntable [14], driving gear set [15], stepper motor b and its driver [16].
Reference Fig. 4, a kind of image collecting device of the online failure evaluation sorter of corn seed based on machine vision,
Include mainly：LED annular light sources [17], camera [18], connecting screw [19].
Reference Fig. 5, a kind of sorter of the online failure evaluation sorter of corn seed based on machine vision, mainly
Including：Damaged seed rejecting mechanism [20] and certified seed recovering mechanism [21] Liang Ge mechanisms, specifically by planting groove [22], open
Close bottom cover [23], hinge, magnet, stepper motor c [24], driving lever, connecting screw [25] composition.
When work：The stepper motor a of feeding part drives feed mechanism for seed to carry out cyclical intermission simple grain seeding, stepper motor b
Transmission turntable is driven to carry out intermittent movement clockwise, two movements keep synchronizing, and ensure that the corn seed of simple grain can be by leading kind
In pipe steady fall to planting groove, external interrupt occurs for triggering infrared emission sensor when corn seed passes through grain conductor, will
Signal is transmitted to host computer, and stepper motor b drives transmission turntable to rotate 45 ° and corn seed is transported to image collecting device, upper
Machine controls camera and acquires corn seed image, and the image of acquisition is transmitted back to host computer, qualification of the host computer to corn seed
Property judge after, if corn seed is determined as breakage, PC control stepper motor c drives driving lever to be rotated by 90 °, and will open
It closes bottom cover to open, broken corn seed is made to fall in lower section recycling plants case, to complete the rejecting action of broken corn seed.It closes
The corn of lattice will rotate 180 ° with transmission turntable, arrive certified seed recovering mechanism, and will open and close bottom cover by fixed driving lever opens, and closes
Lattice seed is fallen in the certified seed recycling plants case of lower section, and transmission turntable continues to rotate clockwise 90 ° to next fixed driving lever
The folding bottom cover unification of the opening state of process is closed by driving lever in position.Transmission turntable continues to rotate clockwise into next
A detection cycle.
Claims (5)
1. a kind of online failure evaluation sorter of corn seed based on machine vision, it is characterized in that：Including feeding unit
[1], conveying device [2], image collecting device [3], sorter [4], control system [5], dead axle experimental bench [6], recycling kind
Case [7]；
The feeding unit, by finger-clipping type seed metering device [8], grain conductor [11], infrared emission sensor [10], driving gear set
[12], stepper motor a and its driving [14], mounting [9], seed-storage box [13] composition；Finger-clipping type seed metering device is vertically mounted on mounting
On, grain conductor goes out mounted on feed mechanism for seed at kind of mouth, and infrared emission sensor is mounted on grain conductor and exports both ends, driving gear set
Driving wheel connects stepper motor output shaft, and driven wheel connects finger-clipping type seed metering device jackshaft, the cooperation transmission of two gears；Its feature
It is：Detect whether that seed process, gear set cooperation complete stepper motor and drive finger-clipping type seed metering device with infrared emission sensor
Rotate seeding；
The conveying device is made of transmission turntable [14], driving gear set [15], stepper motor b and its driver [16]；Its
It is characterized in：It transmits turntable to be mounted on dead axle experimental bench, transmits and connected by bearing among turntable and dead axle experimental bench, gear set
Driving wheel be mounted on stepper motor output shaft on, driven wheel be mounted on transmission turntable on, with transmission turntable concentric co-axial；It is logical
Stepper motor output power is crossed, using gear drive reduction of speed torque, transmission turntable rotation is driven, to realize the defeated of corn seed
It send；Mode of movement is rotation conveying；
Described image harvester is made of LED annular light sources [17], camera [18], connecting screw [19]；LED annular light sources
On camera lens, and it is coaxial with camera optical axis, and camera is fixed on dead axle experimental bench by connecting screw, makes camera optical axis
It is vertical with the driving turntable of conveying device；It is characterized in that：LED annular light sources use yellow light, connecting screw to use screw thread with camera
Connection, connecting screw are connect with the dead axle of dead axle experimental bench with cross clamp；
The sorter is divided into Liang Ge mechanisms, damaged seed rejecting mechanism [20] and certified seed recovering mechanism [21], specifically
It is made of planting groove [22], folding bottom cover [23], hinge, stepper motor c [24], driving lever, connecting screw [25], magnet；Its
It is characterized in that：8 circular holes are separated on the transmission turntable of conveying device, angle is between the center of circle of each two adjacent holes
45 °, planting groove is bonded in the downside of transmission turntable hole, the both sides of hinge are connected with planting groove and folding bottom cover respectively
It connects, folding bottom cover is mounted on the downside of planting groove by hinge；2 blocks of magnet are separately mounted to folding bottom cover gab end and planting
At the bottom end fluting of groove, the angle with hinge is 180 °, and driving lever is connected with the output shaft of stepper motor, and stepper motor passes through
Connecting screw and cross clamp are connected on the dead axle of dead axle experimental bench；The installation angle of feeding unit and image collecting device is
45 °, the installation angle of image collecting device and sorter is 90 °, the damaged seed rejecting mechanism of sorter with qualified kind
The driving lever installation angle of uncapping of sub- recovering mechanism is 90 °, the installation of the uncap driving lever and closure driving lever of certified seed recovering mechanism
Angle is 90 °；
The control system its be mainly characterized by：With microcontroller to a kind of online failure evaluation of the corn seed based on machine vision
Sorter is controlled；（1）Slave computer receives corn seed and passes through information, is transmitted to host computer, and host computer sends out signal, the next
Machine controls image collecting device and shoots corn seed image；（2）The image of shooting is transmitted to host computer by slave computer, and host computer judges
Whether corn seed is qualified, and sends court verdict to slave computer；（3）It is the next if testing result is broken corn seed
The stepper motor c that the damaged seed of machine control rejects part drives driving lever to be rotated by 90 °, and damaged seed is rejected to the folding bottom cover of part
It opens, damaged seed is fallen.
2. the online failure evaluation sorter of a kind of corn seed based on machine vision according to claim 1,
It is characterized in that stepper motor b drives finger-clipping type seed metering device to carry out intermittent movement, stepper motor a drives conveying device to carry out interval fortune
Dynamic, two intermittent movements synchronize, and the intermittent time according to detection process time length, determines ranging from 1-3s.
3. the online failure evaluation sorter of the according to claim a kind of corn seed based on machine vision, feature
It is, mode of movement is that stepper motor drives driving gear set rotatably to be conveyed.
4. the online failure evaluation sorter of a kind of corn seed based on machine vision according to claim 1, special
Sign is that sorter includes that damaged seed rejecting mechanism and certified seed recovering mechanism, rejecting mechanism are driven by stepper motor c
Driving lever is rotated by 90 °, and opens folding bottom cover, broken corn seed is made to fall；The driving lever of uncapping of certified seed recovering mechanism will open and close
Bottom cover is opened, and so that qualified corn seed is fallen in lower section recycling plants case, the closure driving lever of certified seed recovering mechanism will fall jade
The folding bottom cover of rice seed closes, in being moved into next circle.
5. the online failure evaluation sorter of the according to claim a kind of corn seed based on machine vision, feature
It is, when control system receives damaged seed signal, by controlling the rotation angle of stepper motor c to execute broken corn kind
Sub- rejecting action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433834.XA CN108655021B (en) | 2018-05-08 | 2018-05-08 | Online damaged discernment sorter of maize seed based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433834.XA CN108655021B (en) | 2018-05-08 | 2018-05-08 | Online damaged discernment sorter of maize seed based on machine vision |
Publications (2)
| Publication Number | Publication Date |
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| CN108655021A true CN108655021A (en) | 2018-10-16 |
| CN108655021B CN108655021B (en) | 2020-03-13 |
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| CN201810433834.XA Active CN108655021B (en) | 2018-05-08 | 2018-05-08 | Online damaged discernment sorter of maize seed based on machine vision |
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Cited By (6)
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| CN110412045A (en) * | 2019-07-04 | 2019-11-05 | 中国农业机械化科学研究院 | A kind of transmission-type corn seed underbead crack device for fast detecting and method |
| CN110419293A (en) * | 2019-07-11 | 2019-11-08 | 湖州师范学院 | A kind of oscillatory type seed vitality sorting machine |
| CN110419292A (en) * | 2019-07-11 | 2019-11-08 | 湖州师范学院 | A kind of pneumatic suction formula seed vitality sorting machine |
| CN110586514A (en) * | 2019-10-24 | 2019-12-20 | 中国科学院长春光学精密机械与物理研究所 | Seed sorting equipment and method and seed activity detection device |
| CN111272770A (en) * | 2020-02-18 | 2020-06-12 | 长沙师范学院 | Product detection device based on machine vision |
| CN112676194A (en) * | 2020-12-10 | 2021-04-20 | 中国农业大学 | Seed sorting and detecting device |
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| CN110412045A (en) * | 2019-07-04 | 2019-11-05 | 中国农业机械化科学研究院 | A kind of transmission-type corn seed underbead crack device for fast detecting and method |
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| CN112676194A (en) * | 2020-12-10 | 2021-04-20 | 中国农业大学 | Seed sorting and detecting device |
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