CN104949916A - Fall type corn ear property measuring apparatus and measuring method thereof - Google Patents
Fall type corn ear property measuring apparatus and measuring method thereof Download PDFInfo
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- CN104949916A CN104949916A CN201510289154.1A CN201510289154A CN104949916A CN 104949916 A CN104949916 A CN 104949916A CN 201510289154 A CN201510289154 A CN 201510289154A CN 104949916 A CN104949916 A CN 104949916A
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Abstract
The invention relates to a fall type corn ear property measuring apparatus. The apparatus is characterized in that the apparatus comprises a conveying unit, a vertical guide tube, an image acquisition unit and a control processing unit; the conveying unit comprises a first conveyor belt for allowing corn ears to pass through the first conveyor belt and to enter the vertical guide tube; the vertical guide tube is used for allowing corn ears to vertically fall; the image acquisition unit is used for acquiring the image information of the vertical fall corn ears in a horizontal direction; the image acquisition unit is connected with the control processing unit, and conveys the acquired image information of the corn ears to the control processing unit for processing; and the control processing unit is used for processing the corn ear image information conveyed by the image acquisition unit in order to obtain the ear property information of the corn ears. The apparatus completes all-around trifocal image acquisition of the corn ears when the ears fall, calculates the ear property information according to the acquired image information, and has the advantages of fast measuring speed and accurate measuring result.
Description
Technical field
The present invention relates to corn ear test technical field, particularly relate to one and to drop formula corn ear panicled characters measurement mechanism and measuring method thereof.
Background technology
Corn is the main cereal crops of China, in China's agricultural production, occupy critical role.Corn breeding is the important component part that the fields such as industry scientific research, production are planted by China.As one of the key problem of corn breeding, corn ear test has great importance.In corn ear test process, the breeding character of the bald sharp length of fruit ear, tassel row number and row grain number to be the most common be also outbalance.Therefore, corn ear test needs to carry out omnibearing measurement to fruit ear.Current domestic corncob portion species test adopts the traditional means such as range estimation dipstick metering mostly, and often criticize and need the corn quantity of species test all very large, traditional species test process often needs lasting more than one month, there is human cost consumes excessive, and work efficiency is difficult to improve and the low inferior many drawbacks of degree of accuracy.
A kind of corn ear test mthods, systems and devices based on computer vision technique disclosed in prior art, can measure multiple appearance character parameters such as the spike length of corn ear, tassel row number, row grain number, bald sharp length.But the device of its design cannot collect the full angle information of fruit ear.Another prior art discloses a kind of corn ear character pick-up unit, two rollers are utilized to rely on frictional force drives corn ear to rotate around respective axis uniform rotation respectively, linear array CCD camera just carries out scanning shoot to corn ear from corn ear, the all-round image of disposable acquisition corn ear, then the method spent time of the full angle information of this collection corn ear is longer, and efficiency is lower.
In sum, need badly to design and a kind ofly can realize device and the measuring method that year old corn ear test parameter carries out comprehensive precision measurement, to overcome the defect of prior art, to promote the development of modern Maize seed industry.
Summary of the invention
Technical matters to be solved by this invention how to realize gathering accurately fast the comprehensive trait information of corn ear.
For this purpose, on the one hand, the present invention proposes one and to drop formula corn ear panicled characters measurement mechanism, comprising: delivery unit, vertical conduit, image acquisition units and controlled processing unit;
Described delivery unit comprises the first travelling belt, and the upper port of described first travelling belt end and described vertical conduit is adjacent, enters described vertical conduit to make corn ear after described first travelling belt;
Described vertical conduit is that vertical state falls for making corn ear, and the upper port diameter of described vertical conduit only can hold single fringe corn ear to be passed through;
Described image acquisition units, for gathering the image information of the corn ear fallen in vertical state in the horizontal direction; Described image acquisition units is connected with described controlled processing unit, and sends the image information of the corn ear collected to described controlled processing unit and process;
Described controlled processing unit, for the treatment of the image information of the corn ear that described image acquisition units transmits, to obtain the panicled characters information of corn ear.
Preferably, described image acquisition units comprises image acquisition casing and some camera heads;
Described image acquisition casing upper face center is provided with the first opening, and described image acquisition casing lower surface central authorities are provided with the second opening, and described first opening, the second opening vertically align;
Described some camera heads are positioned on the same surface level of described image acquisition box house, and sight line aims at described image acquisition casing center.
Preferably, described image acquisition units also comprises infrared trigger, falls into the time of described image acquisition casing for detecting corn ear and sends the signal starting image acquisition; Described infrared trigger is positioned at above described camera head, and the infrared ray that described infrared trigger is launched aims at described image acquisition casing center.
Preferably, described image acquisition units also comprises lighting source, and described lighting source is positioned at described image acquisition box house.
Preferably, described lighting source is two annular LED light sources, and described two annular LED light sources lay respectively at below described first opening and the second overthe openings, and described two annular LED light sources vertically align with the lower port of described vertical conduit.
Preferably, described vertical conduit upper port is towards described first travelling belt, and described vertical conduit upper port and described first travelling belt are in same level.
Preferably, also comprise fruit ear recovery unit, for cushioning and reclaiming the corn ear dropped, described fruit ear recovery unit is connected with described image acquisition units.
Preferably, described fruit ear recovery unit comprises: slope guide rail and the second travelling belt; Described slope guide rail is positioned at below described second opening, and track lower end, described slope is connected with described second travelling belt.
Preferably, described controlled processing unit is computing machine, utilizes Stereo Vision, and the image information of the corn ear transmitted according to described image acquisition units carries out spatial profiles measurement to corn ear, to obtain the panicled characters information of corn ear.
On the other hand, the invention allows for one and to drop formula corn ear panicled characters measuring method, comprise the following steps:
S1. corn ear is sent to vertical conduit by the first travelling belt;
S2. described vertical conduit guides corn ear vertically to fall;
What S3. infrared trigger detected fruit ear falls into the moment, and immediately send image pick-up signal to described some camera heads, described some camera heads are taken pictures to corn ear simultaneously;
S4. the image information collected is sent to controlled processing unit by described some camera heads, and described controlled processing unit utilizes Stereo Vision to carry out spatial profiles measurement to corn ear according to described image information, obtains the panicled characters information of corn ear;
S5. the corn ear tumbled along slope guide rail is transported to fruit ear recovery place by the second travelling belt.
Formula corn ear panicled characters measurement mechanism and the measuring method thereof of dropping disclosed in this invention, combined by lighting source and camera head, to drop the collection completed instantaneously the omnibearing three-view diagram picture of corn ear at corn ear, and the trait information of corn ear is calculated with this, the tassel row number of nondestructive measurement corn ear can be realized, row grain number, the common character parameter such as grain number per spike, measurement result is more accurate, objective, science, measuring speed is fast, improve measurement efficiency, have great significance and reference value for realizing fully automatic high-speed corn breeding.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 shows the present invention and to drop the one-piece construction schematic diagram of formula corn ear panicled characters measurement mechanism;
Fig. 2 shows the present invention and to drop the process flow diagram of formula corn ear panicled characters measuring method.
Reference numeral: 1, corn ear; 2, the first travelling belt; 3, vertical conduit; 4, image acquisition casing; 5, camera head; 6, infrared trigger; 7, lighting source; 8, slope guide rail; 9, the second travelling belt.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is described in detail.
Embodiment 1
As shown in Figure 1, the present invention drops an embodiment of formula corn ear 1 panicled characters measurement mechanism, comprising: delivery unit, vertically conduit, image acquisition units and controlled processing unit.
The upper port that delivery unit comprises the first travelling belt 2, first travelling belt 2 end and vertical conduit 3 is adjacent, enters vertical conduit 3 to make corn ear after the first travelling belt 2; Preferably, the edge of the first travelling belt 2 is provided with shirt rim.
Image acquisition units comprises: image acquisition casing 4, several camera heads 5 and infrared trigger 6.Wherein, image acquisition casing 4 is for receiving the corn ear 1 dropped, and image acquisition casing 4 upper face center is provided with the first opening, and image acquisition casing 4 lower surface central authorities are provided with the second opening first opening and the second opening vertically aligns; First opening of image acquisition casing 4 upper face center vertically aligns with vertical conduit 3 lower port, and corn ear 1 vertically falls into image acquisition casing 4, to carry out image acquisition from vertical conduit 3 lower port.Camera head 5 is positioned on the inner same surface level of described image acquisition casing 4, and sight line aims at described image acquisition casing 4 center.Preferably, arrange three camera heads 5, be positioned on same surface level, shooting direction points to image acquisition casing 4 center, becomes hexagonal angle mutually.Three camera heads 5 are taken pictures simultaneously, the three-view drawing picture of corn ear 1 is sent to controlled processing unit and processes.Optionally, can adopt high-speed industrial CCD camera, this Series Industrial camera adopts exposed frame CCD as sensor.Picture quality is high, and color is Well-recovered.To ensure in dynamic acquisition, the high quality image without distortion can be obtained.Image acquisition units is connected with described controlled processing unit, and sends the image information of the corn ear 1 collected to described controlled processing unit and process.
Infrared trigger 6 in image acquisition units, falls into the time of described image acquisition casing 4 for detecting corn ear 1 and sends image pick-up signal.The principle of work of infrared trigger 6 is as follows: infrared trigger 6 comprises infrared transmitter and receiver.Infrared transmitter launches sightless infrared light beam, faces corresponding receive window on receiver, when movement object between transmitter and receiver through out-of-date, infrared beam is cut off, cause receiver to be triggered, send signal to camera head 5 immediately, trigger next equipment.In the present embodiment, infrared trigger 6 is arranged at above camera head 5.The infrared ray that infrared trigger is launched aims at described image acquisition casing center, namely the infrared light beam that infrared transmitter is launched passes through the descent path of the corn ear 1 preset, when corn ear 1 vertically falls into image acquisition casing 4 from vertical conduit 3 lower port, infrared beam is cut off, receiver is caused to be triggered, send signal to camera head 5 immediately, trigger the shutter of camera head 5, complete image acquisition.
Image acquisition units also comprises lighting source 7, and it is inner that described lighting source 7 is positioned at described image acquisition casing 4, and the surface for the corn ear 1 for falling into described image acquisition units provides illumination.Described lighting source 7 is several annular high light LED light sources.Preferably, image acquisition casing 4 inside arranges two annular white LED light sources, and below the first opening laying respectively at image acquisition casing 4 and the second overthe openings, and described two annular LED light sources vertically align with the lower port of described vertical conduit.Two annular white LED light sources gather light filling in casing to figure, to improve the sharpness of gathered corn ear 1 image, thus improve the accuracy of the Ear Characters information that corn ear 1 image procossing that gathers obtains.
Vertical conduit 3 upper-end bent, and angle of bend is more slow, in order to avoid block fruit ear; Upper port is towards described first travelling belt 2, and upper port and the first travelling belt 2 are in same level.Vertical conduit 3 lower port is vertically alignd with the first opening of described image acquisition casing 4.The diameter of vertical conduit 3 upper port is approximately equal to the diameter of corn ear 1, to ensure once only to allow a corn ear 1 to pass through.Preferably, vertical conduit 3 is cylindrical.Described image acquisition units is fallen in fruit ear being adjusted to vertical state.
Controlled processing unit, for controlling the image information of the corn ear 1 of described image acquisition units and the described image acquisition units transmission of process, to obtain the panicled characters information of corn ear 1.Controlled processing unit is computing machine, utilizes Stereo Vision to carry out spatial profiles measurement to corn ear 1, to obtain the panicled characters information of corn ear 1.In the present embodiment, when corn ear 1 vertically falls into image acquisition casing 4 from vertical conduit 3 lower port, infrared trigger 6 is triggered, signal is sent immediately to camera head 5, trigger the shutter of camera head 5, three camera heads 5 are taken pictures simultaneously, the three-view drawing picture of corn ear 1 is sent to process computer, computing machine can carry out the calculating of three dimensional space coordinate according to the parallax of this three width image, the space distribution situation of corn ear 1 is reduced, thus calculates the parameter such as tassel row number, row grain number, grain number per spike of corn ear 1.
The formula that drops corn ear 1 panicled characters measurement mechanism, also comprises fruit ear recovery unit, and for cushioning and reclaiming the corn ear 1 dropped, fruit ear recovery unit is connected with described image acquisition units.Fruit ear recovery unit comprises: slope track 8 and the second travelling belt 9.Skewed slot guide rail lower end is connected with the second travelling belt 9.Slope track 8 is positioned at below image acquisition casing 4, and just to the lower port of vertical conduit 3, the fruit ear dropped from image acquisition casing 4 will be caught by slope track 8, and finally tumbles on the second travelling belt 9, is transported to and reclaims fruit ear place.Preferably, slope track 8 adopts sponge material, for cushioning the corn ear 1 dropped, keeps the complete of fruit ear.
Embodiment 2
As shown in Figure 2, the present invention drops in an embodiment of formula corn ear 1 panicled characters measuring method, comprises the following steps:
S1. corn ear 1 is sent to vertical conduit 3 by the first travelling belt 2;
S2. described vertical conduit 3 guides corn ear 1 vertically to fall;
What S3. infrared trigger 6 detected corn ear 1 falls into the moment, and immediately send image pick-up signal to described some camera heads 5, described some camera heads 5 are taken pictures to corn ear 1 simultaneously;
S4. the image information collected is sent to controlled processing unit by described some camera heads 5, described controlled processing unit utilizes Stereo Vision to carry out spatial profiles measurement to corn ear 1 according to described image information, obtains the panicled characters information of corn ear 1;
S5. the corn ear 1 tumbled along slope guide rail 8 is transported to fruit ear recovery place by the second travelling belt 9.
The formula that drops corn ear panicled characters measurement mechanism in the embodiment of the present invention and measuring method thereof, combined by lighting source and camera head and obtain the omnibearing three-view diagram picture of corn ear, and calculate Ear Characters information with this, can realize the common character parameters such as the tassel row number of nondestructive measurement corn ear, row grain number, grain number per spike, measurement result is more accurate, objective, science.Whole measuring process drops at corn ear and completes instantaneously, and measuring speed is fast, improve measurement efficiency, having great significance and reference value for realizing fully automatic high-speed corn breeding.
Although describe embodiments of the present invention by reference to the accompanying drawings, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, such amendment and modification all fall into by within claims limited range.
Claims (10)
1. the formula that drops a corn ear panicled characters measurement mechanism, is characterized in that, comprising: delivery unit, vertical conduit, image acquisition units and controlled processing unit;
Described delivery unit comprises the first travelling belt, and the upper port of described first travelling belt end and described vertical conduit is adjacent, enters described vertical conduit to make corn ear after described first travelling belt;
Described vertical conduit is that vertical state falls for making corn ear, and the upper port diameter of described vertical conduit only can hold single fringe corn ear to be passed through;
Described image acquisition units, for gathering the image information of the corn ear fallen in vertical state in the horizontal direction; Described image acquisition units is connected with described controlled processing unit, and sends the image information of the corn ear collected to described controlled processing unit and process;
Described controlled processing unit, for the treatment of the image information of the corn ear that described image acquisition units transmits, to obtain the panicled characters information of corn ear.
2. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, it is characterized in that, described image acquisition units comprises image acquisition casing and some camera heads;
Described image acquisition casing upper face center is provided with the first opening, and described image acquisition casing lower surface central authorities are provided with the second opening, and described first opening, the second opening vertically align with the lower port of described vertical conduit;
Described some camera heads are positioned on the same surface level of described image acquisition box house, and sight line aims at described image acquisition casing center.
3. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, it is characterized in that, described image acquisition units also comprises infrared trigger, falls into the time of described image acquisition casing for detecting corn ear and sends the signal starting image acquisition; Described infrared trigger is positioned at above described camera head, and the infrared ray that described infrared trigger is launched aims at described image acquisition casing center.
4. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, it is characterized in that, described image acquisition units also comprises lighting source, and described lighting source is positioned at described image acquisition box house.
5. the formula corn ear panicled characters measurement mechanism that drops according to claim 4, it is characterized in that, described lighting source is two annular LED light sources, described two annular LED light sources lay respectively at below described first opening and the second overthe openings, and described two annular LED light sources vertically align with the lower port of described vertical conduit.
6. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, is characterized in that, described vertical conduit upper port is towards described first travelling belt, and described vertical conduit upper port and described first travelling belt are in same level.
7. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, it is characterized in that, also comprise fruit ear recovery unit, for cushioning and reclaiming the corn ear dropped, described fruit ear recovery unit is connected with described image acquisition units.
8. the formula corn ear panicled characters measurement mechanism that drops according to claim 7, it is characterized in that, described fruit ear recovery unit comprises: slope guide rail and the second travelling belt; Described slope guide rail is positioned at below described second opening, and track lower end, described slope is connected with described second travelling belt.
9. the formula corn ear panicled characters measurement mechanism that drops according to claim 1, it is characterized in that, described controlled processing unit is computing machine, utilize Stereo Vision, the image information of the corn ear transmitted according to described image acquisition units carries out spatial profiles measurement to corn ear, to obtain the panicled characters information of corn ear.
10. the formula that drops a corn ear panicled characters measuring method, is characterized in that, comprising:
S1. corn ear is sent to vertical conduit by the first travelling belt;
S2. described vertical conduit guides corn ear vertically to fall;
What S3. infrared trigger detected fruit ear falls into the moment, and immediately send image pick-up signal to some camera heads, described some camera heads are taken pictures to corn ear simultaneously;
S4. the image information collected is sent to controlled processing unit by described some camera heads, and described controlled processing unit utilizes Stereo Vision to carry out spatial profiles measurement to corn ear according to described image information, obtains the panicled characters information of corn ear;
S5. the second travelling belt will tumble corn ear along slope guide rail and be transported to fruit ear recovery place.
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