CN107064147A - A kind of material scanning system and color selector - Google Patents
A kind of material scanning system and color selector Download PDFInfo
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- CN107064147A CN107064147A CN201710348660.2A CN201710348660A CN107064147A CN 107064147 A CN107064147 A CN 107064147A CN 201710348660 A CN201710348660 A CN 201710348660A CN 107064147 A CN107064147 A CN 107064147A
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- line
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- scanning system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- 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
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention provides a kind of material scanning system and color selector, wherein material scanning system includes at least two line-scan digital cameras, camera triggering device and image processing apparatus；The focus of at least two line-scan digital camera is co-located, and at least two line-scan digital camera is respectively arranged with counter, and the counter is provided with counting mechanism, frequency divider and camera trigger mechanism；The camera triggering device includes signal-sending mechanism, and the counter of the signal-sending mechanism and at least two line-scan digital camera is communicated to connect；Described image processing unit is communicated to connect with least two line-scan digital camera.This programme can improve the sweep speed of material and the efficiency of separation of material.
Description
Technical field
The present invention relates to material scanning technique field, more particularly to a kind of material scanning system and color selector.
Background technology
Color selector is the difference according to material optical characteristics, using detecting technique by the heterochromatic particle in granule materials
The equipment that automatic sorting comes out.Current color selector is used for bulk material or packaging industry product, food quality detection and classification neck
Domain.
In color selector, camera is an essential part, and the scanning line frequency of camera directly affects the scanning of material
The sorting effect of speed and material；The line frequency of camera is limited by light source and chip etc..
When carrying out the scanning of material, if the scanning line frequency of camera is too low, in order to ensure the accuracy of scanning, it is necessary to drop
The movement velocity of low material is to obtain the scan image of many line frequencies, the efficiency that can so influence material to sort, and changes high line frequency
Camera cost it is higher, it is not practical enough.
The content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of material scanning system and color selector, without more
The camera of high line frequency is changed, and the sweep speed of material and the efficiency of separation of material can be improved.
The technical proposal of the invention is realized in this way：
A kind of material scanning system, including at least two line-scan digital cameras, camera triggering device and image processing apparatus；
The focus of at least two line-scan digital camera is co-located, and at least two line-scan digital camera is respectively arranged with
Counter, the counter is provided with counting mechanism, frequency divider and camera trigger mechanism；
The camera triggering device includes signal-sending mechanism, the signal-sending mechanism and at least two linear arrays phase
The counter communication connection of machine；
Described image processing unit is communicated to connect with least two line-scan digital camera.
It is preferred that, the camera triggering device also includes high level transmitting mechanism, and the high level transmitting mechanism connects institute
State the counter of at least two line-scan digital cameras.
It is preferred that, the camera triggering device is driving plate.
It is preferred that, the camera triggering device is also associated with input unit.
It is preferred that, the input unit is touch display screen.
It is preferred that, at least two line-scan digital camera is CCD line-scan digital cameras.
The invention also provides a kind of color selector, including a kind of described material scanning system of any of the above.
Material scanning system proposed by the present invention and color selector, the counter of at least two line-scan digital cameras receive camera triggering
The trigger signal of device, frequency divider is divided to trigger signal, and the trigger signal after frequency dividing triggers at least two line-scan digital cameras,
The view data that at least two linear camera output phases stagger, image procossing mechanism, which is received, merges the output of at least two cameras
The view data of phase shifting is high without changing so as to obtain the scan image higher than at least two camera line frequencies
The camera of line frequency can just improve the sweep speed of material and the efficiency of separation of material.
Brief description of the drawings
Fig. 1 is the structured flowchart of material scanning system proposed by the present invention；
Fig. 2 is the timing diagram of camera trigger signal.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the embodiment of the present invention proposes a kind of material scanning system, including at least two line-scan digital cameras 1, phase
Machine triggering device 2 and image processing apparatus 3；
The focus of at least two line-scan digital cameras 1 is co-located, and at least two line-scan digital cameras 1 are respectively arranged with counter
101, counter is provided with counting mechanism 1011, frequency divider 1012 and camera trigger mechanism 1013；
Camera triggering device 2 includes signal-sending mechanism 201, the line-scan digital camera 1 of signal-sending mechanism 201 and at least two
Counter 101 is communicated to connect；
Image processing apparatus 3 is communicated to connect with least two line-scan digital cameras 1.
It can be seen that, material scanning system and color selector that the embodiment of the present invention is proposed, the counter of at least two line-scan digital cameras
The trigger signal of camera triggering device is received, frequency divider is divided to trigger signal, the trigger signal triggering after frequency dividing is at least
Two line-scan digital cameras, the view data that at least two linear camera output phases stagger, image procossing mechanism, which is received, to be merged at least
The view data of the phase shifting of two camera output, so as to obtain the scan image higher than at least two camera line frequencies,
Camera without changing high line frequency can just improve the sweep speed of material and the efficiency of separation of material.
Wherein, the focus of at least two line-scan digital cameras is located at material to be scanned, and image processing apparatus is color sorting plate.
In a preferred embodiment of the invention, camera triggering device also includes high level transmitting mechanism, high level hair
Mechanism is sent to connect the counter of at least two line-scan digital cameras.
Specifically, high level is used for initializing camera counter.When carrying out camera triggering, the first of linage-counter is entered in advance
After beginningization, the technology of counter can be made more accurate.
For example, when counter is for carrying out odd number rising edge triggering line-scan digital camera, if counter is not pre-
First initialize, easily cause and count inaccurate, odevity is chaotic, influence is counted.
In a preferred embodiment of the invention, camera triggering device is driving plate.
In the present embodiment, the effect of camera triggering device is that triggering camera is scanned.Driving plate can send triggering
Signal and high level are at least two line-scan digital cameras.
In a preferred embodiment of the invention, camera triggering device is also associated with input unit, and input unit is tactile
Touch display screen.
In the present embodiment, it is necessary to set the different trigger signals of camera triggering device, for example, need the row set
Frequency is 10K, can be configured by touch display screen.
In a preferred embodiment of the invention, at least two line-scan digital cameras are CCD line-scan digital cameras.
Line-scan digital camera, is the camera using line scan image sensor.The typical field of application of line-scan digital camera is that detection is continuous
Material, such as metal, plastics, paper and fiber.The usual uniform motion of detected object, utilizes one or more camera pair
Its continuous scanning line by line, is uniformly detected with reaching to its whole surface.
The scheme that line array CCD obtains image has its distinctive advantage in following several respects：
1st, line array CCD adds sweep mechanism and position feedback loop section, and its cost is still significantly less than same homalographic, same to decile
The area array CCD of resolution.
2nd, the coordinate of scan line is provided by grating, and the indicating accuracy of high-precision grating scale can be higher than between area array CCD pixel
Away from the accuracy of manufacture, in this sense, the image precision in a scanning direction that line array CCD is obtained can be higher than area array CCD
Image.
The material scanning system that the embodiment of the present invention is proposed, by taking two line-scan digital cameras as an example, line frequency is produced using driving plate
External trigger signal 20K, which is exported, gives phase generator terminal, and phase generator terminal produces external trigger signal frequency split 2 10K line frequencies of phase shifting；Now
Camera will the view data of 2 10k line frequencies that staggers of output phase, its view data is merged, what is obtained is exactly 20K scannings
The material picture of speed.
As shown in Fig. 2 A is the trigger signal that driving plate is sent, B is the line frequency useful signal that camera 1 is actually recognized, C
The line frequency useful signal actually recognized for camera 2.Wherein, camera 1 and camera 2 are all rising edge triggerings, two rising edges and
The external trigger signal parity number of driving plate output aligns respectively.
In the present embodiment, in order to further improve sweep speed, frequency divider can be three frequency division, four frequency dividings etc., so that
It can be multiple low row frequency to high line frequency trigger signal frequency dividing, in the case where camera hardware condition is constant, increase the number of camera
Amount, the covert purpose for reaching lifting camera scanning speed.
The present invention also proposes a kind of color selector, including above-mentioned material scanning system.
In summary, the embodiment of the present invention can at least realize following effect：
In embodiments of the present invention, the counter of at least two line-scan digital cameras receives the trigger signal of camera triggering device,
Frequency divider is divided to trigger signal, and the trigger signal after frequency dividing triggers at least two line-scan digital cameras, at least two linear phases
The view data that machine output phase staggers, image procossing mechanism receives the image for the phase shifting for merging the output of at least two cameras
Data, so as to obtain the scan image higher than at least two camera line frequencies, without changing the camera of high line frequency with regard to energy
Enough improve the sweep speed of material and the efficiency of separation of material.
In embodiments of the present invention, camera triggering device also includes high level transmitting mechanism, the connection of high level transmitting mechanism
The counter of at least two line-scan digital cameras, so as to so that the technology of counter is more accurate
In embodiments of the present invention, at least two line-scan digital cameras are CCD line-scan digital cameras, and cost is relatively low.
It is last it should be noted that：Presently preferred embodiments of the present invention is the foregoing is only, the skill of the present invention is merely to illustrate
Art scheme, is not intended to limit the scope of the present invention.Any modification for being made within the spirit and principles of the invention,
Equivalent substitution, improvement etc., are all contained in protection scope of the present invention.
Claims (7)
1. a kind of material scanning system, it is characterised in that including at least two line-scan digital cameras, camera triggering device and image procossing
Device；
The focus of at least two line-scan digital camera is co-located, and at least two line-scan digital camera is respectively arranged with counting
Device, the counter is provided with counting mechanism, frequency divider and camera trigger mechanism；
The camera triggering device includes signal-sending mechanism, the signal-sending mechanism and at least two line-scan digital camera
Counter is communicated to connect；
Described image processing unit is communicated to connect with least two line-scan digital camera.
2. material scanning system as claimed in claim 1, it is characterised in that the camera triggering device also includes high level and sent out
Mechanism is sent, the high level transmitting mechanism connects the counter of at least two line-scan digital camera.
3. material scanning system as claimed in claim 1, it is characterised in that the camera triggering device is driving plate.
4. material scanning system as claimed in claim 1, it is characterised in that the camera triggering device is also associated with input dress
Put.
5. material scanning system as claimed in claim 4, it is characterised in that the input unit is touch display screen.
6. the material scanning system as described in claim any one of 1-5, it is characterised in that at least two line-scan digital camera is
CCD line-scan digital cameras.
7. a kind of color selector, it is characterised in that including the material scanning system described in claim any one of 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710348660.2A CN107064147A (en) | 2017-05-17 | 2017-05-17 | A kind of material scanning system and color selector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710348660.2A CN107064147A (en) | 2017-05-17 | 2017-05-17 | A kind of material scanning system and color selector |
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| CN107064147A true CN107064147A (en) | 2017-08-18 |
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| CN1635537A (en) * | 2003-12-31 | 2005-07-06 | 中国农业大学 | A system and method for image acquisition of fruit surface |
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