CN107389694A - A kind of more ccd video camera synchronous signal acquisition apparatus and method - Google Patents
A kind of more ccd video camera synchronous signal acquisition apparatus and method Download PDFInfo
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- CN107389694A CN107389694A CN201710748686.6A CN201710748686A CN107389694A CN 107389694 A CN107389694 A CN 107389694A CN 201710748686 A CN201710748686 A CN 201710748686A CN 107389694 A CN107389694 A CN 107389694A
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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
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
- G01N21/8903—Optical details; Scanning details using a multiple detector array
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
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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
- G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/10—Scanning
- G01N2201/102—Video camera
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/126—Microprocessor processing
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Abstract
The invention discloses a kind of more ccd video camera synchronous signal acquisition device and methods, harvester includes light optional equipment, one-level conveyer belt, two level conveyer belt；Two level conveyer belt is arranged at the rear side lower end of one-level conveyer belt；Arranged in space of the light optional equipment between two conveyer belts in positive tetrahedron；Photoelectric sensor is provided with above the rear end of one-level conveyer belt；The output end of photoelectric sensor is connected by wire with synchronizing signal controller；The output end of synchronizing signal controller is connected with light optional equipment；The potato image information that light optional equipment collects is sent in main control computer by PCI-Express.The present invention realizes that the synchronous of signal is triggered by synchronizing signal controller, has the advantages of triggering precision is high, it is ensured that property while shooting image, improve the acquisition authenticity of potato surface information；In addition, by the synchronous acquisition of multiple video cameras, the same area multiple images can be achieved without dead angle synchronous acquisition, material is provided for panoramic mosaic.
Description
Technical field
The present invention relates to a kind of harvester and method, more particularly to a kind of more ccd video camera synchronous signal acquisition devices
With method.
Background technology
The automation classification of potato is to promote the value-added important channel of potato.Machine vision technique has real-time, visitor
The advantages that seeing, be lossless, it is adapted to be classified the agricultural product including potato according to external sort.With machine vision
Fast development, the multi-vision visual of initial monocular vision, binocular vision till now.Multi-vision visual is because can be from more polygonal
The observation object of degree, obtains more three-dimensional informations, is increasingly paid close attention to by machine vision researcher.But at the same time, increase
Add the number of video camera, the problem of also just bringing multiple-camera Synchronization Control.The synchronous control mode of traditional multiple-camera is
Software controls, i.e., carrying out Initialize installation to video camera by software is simultaneously emitted by trigger signal, and driving multiple-camera is synchronously right
Object carries out IMAQ.But requirement of this control mode for trigger signal is higher, because sending multichannel by software
Trigger signal, can because cause synchronous precision very low the reason for electrical equipment and circuit itself, even if using trigger signal all the way,
Can be because the delay of triggering circuit causes the asynchronous of triggering.
The content of the invention
In order to solve the weak point present in above-mentioned technology, the invention provides a kind of more ccd video camera synchronizing signals
Harvester and method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of more ccd video camera synchronizing signals are adopted
Acquisition means, including light optional equipment, one-level conveyer belt, two level conveyer belt, synchronizing signal controller；Two level conveyer belt is arranged at one-level
The rear side lower end of conveyer belt；Level interval, vertical interval between one-level conveyer belt and two level conveyer belt are with potato from one-level
It is foundation on safe falling to two level conveyer belt after being dished out in conveyer belt；
Light optional equipment is divided into No.1 ccd video camera, No. two ccd video cameras, No. three ccd video cameras, No. four CCD video cameras；
No.1 ccd video camera, No. two ccd video cameras, No. three ccd video cameras, No. four ccd video cameras transmit in one-level conveyer belt and two level
Arranged in space between band in positive tetrahedron, for carrying out the bat at comprehensive no dead angle to it in potato descent
According to；
Photoelectric sensor is provided with above the rear end of one-level conveyer belt；The output end of photoelectric sensor by wire with it is synchronous
Signal controller is connected；The output end of synchronizing signal controller is taken the photograph with No.1 CCD video cameras, No. two CCD respectively by wire
Camera, No. three ccd video cameras, No. four ccd video cameras are connected；
Photoelectric sensor detect potato since the rear end of one-level conveyer belt by and will level throw motion when, will examine
Survey signal and be sent to synchronizing signal controller in real time, four ccd video cameras are controlled under the control action of synchronizing signal controller
The potato dished out is synchronized and taken pictures, ensures image information while property；
The potato that No.1 ccd video camera, No. two ccd video cameras, No. three ccd video cameras, No. four ccd video cameras collect
Surface image information is sent in main control computer by the PCI-Express of four-way；Main control computer divides image information
After analysis processing, the potato self-grading device to two level conveyer belt rear end sends control signal, realize to potato defect and
The classification of size.
Collect conveying device with potato and be connected in the front end of one-level conveyer belt；The transporting velocity of one-level conveyer belt is compared with Ma Ling
It is fast that potato collects conveying device, the transporting velocity of two level conveyer belt, is easy to pull open the transmission range between adjacent potato, convenient to clap
According to.
Synchronizing signal controller is also connected by wire with main control computer, and synchronizing signal controller is receiving photoelectricity
After the signal that sensor is sent, four ccd video cameras of control, which synchronize, under the control action of main control computer takes pictures.
Vertical interval between one-level conveyer belt and two level conveyer belt is 1-10cm.
One-level conveyer belt, the lower end of two level conveyer belt are respectively arranged with No.1 variable-frequency motor, No. two variable-frequency motors.
A kind of more ccd video camera synchronous signal acquisition methods, its overall step are as follows：
Ith, the transmission speed of one-level conveyer belt and two level conveyer belt is adjusted, while adjusts the two level interval and Vertical Square
Upward distance of rising and falling, allows potato to be dropped down onto from one-level conveyer belt upthrow on two level conveyer belt, and will not be to potato
Cause to damage；
IIth, when potato reaches the end of one-level conveyer belt, photoelectric sensor sends detection to synchronizing signal controller
Signal；Synchronizing signal controller sends synchronizing signal to four ccd video cameras immediately after detection signal is received；Four CCD
Video camera is after synchronizing signal is received while starts, and 360 ° of IMAQs without dead angle are carried out to potato；
IIIth, obtained image information is passed through CAT by four ccd video cameras after potato surface image information is collected
Netting twine sends the data buffer area of PCI-Express to；PCI-Express is again conveyed the great amount of images data received by pci interface
Into main control computer；
IVth, main control computer handles out control signal and is sent to Ma Ling after the image of ccd video camera collection is received
Potato self-grading device, so as to realize damage and the weight grading to potato.
The present invention realizes that the synchronous of signal is triggered by synchronizing signal controller, has the advantages of triggering precision is high, can be with
Ensure shooting image while property, improve the acquisition authenticity of potato surface information；In addition, the synchronization by multiple video cameras
Collection, the same area multiple images can be achieved without dead angle synchronous acquisition, so as to provide material for panoramic mosaic.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the circuit control principle figure of synchronizing signal controller.
Fig. 3 is the square-wave signal flow chart of single-chip microcomputer.
In figure：1st, No.1 ccd video camera；2nd, No. two ccd video cameras；3rd, No. three ccd video cameras；4th, No. four ccd video cameras；
5th, one-level conveyer belt；6th, two level conveyer belt；7th, No.1 variable-frequency motor；8th, No. two variable-frequency motors；9th, potato；10th, PCI-Express；
11st, synchronizing signal controller；12nd, main control computer；13rd, wire；14th, CAT netting twines；15th, photoelectric sensor.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of more ccd video camera synchronous signal acquisition devices include light optional equipment, one-level conveyer belt 5, two
Level conveyer belt 6, synchronizing signal controller 11；Two level conveyer belt 6 is arranged at the rear side lower end of one-level conveyer belt 5；One-level conveyer belt 5
Safe falling is to two after level interval, vertical interval between two level conveyer belt 6 are dished out with potato from one-level conveyer belt 5
It is foundation on level conveyer belt 6；
Light optional equipment is divided into the ccd video camera 3, four of ccd video camera 2, three of No.1 ccd video camera 1, two CCD shootings
Machine 4；3, No. four CCD video cameras 4 of ccd video camera of ccd video camera 2, three of No.1 ccd video camera 1, two are in one-level conveyer belt 5
Arranged in space between two level conveyer belt 6 in positive tetrahedron, it is comprehensive for being carried out in potato descent to it
Taking pictures without dead angle；Ccd video camera can be set up on camera mount.
Photoelectric sensor 15 is provided with above the rear end of one-level conveyer belt 5；The output end of photoelectric sensor 15 passes through wire
13 are connected with synchronizing signal controller 11；The output end of synchronizing signal controller 11 is imaged with No.1 CCD respectively by wire
3, No. four ccd video cameras 4 of ccd video camera of ccd video camera 2, three of machine 1, two are connected；
Photoelectric sensor 15 detect potato since the rear end of one-level conveyer belt 5 by and will level throw motion when,
Detection signal is sent to synchronizing signal controller 11 in real time, four are controlled under the control action of synchronizing signal controller 11
Ccd video camera is synchronized to the potato dished out and taken pictures, and ensures image information while property；
The horse that 3, No. four ccd video cameras 4 of ccd video camera of ccd video camera 2, three of No.1 ccd video camera 1, two collect
Bell potato surface image information is sent in main control computer 12 by the PCI-Express 10 of four-way；Main control computer 12 is to image
After information is analyzed and processed, the potato self-grading device to the rear end of two level conveyer belt 6 sends control signal, realizes to horse
The classification of bell potato defect and size.
Collect conveying device with potato and be connected in the front end of one-level conveyer belt 5；The transporting velocity of one-level conveyer belt 5 is compared with horse
It is fast that bell potato collects conveying device, the transporting velocity of two level conveyer belt 6, is easy to pull open the transmission range between adjacent potato, side
Just take pictures, but they are uniform motion.
Synchronizing signal controller 11 is also connected by wire with main control computer 12, and synchronizing signal controller 11 is connecing
After receiving the signal that photoelectric sensor 15 is sent, four ccd video cameras are controlled to enter under the control action of main control computer 12
Row synchronous photo taking.
Vertical interval between one-level conveyer belt 5 and two level conveyer belt 6 is 1-10cm, it is ensured that is pacified after the flat throwing of potato
It is high-fall fall not damaged.
One-level conveyer belt 5, the lower end of two level conveyer belt 6 are respectively arranged with 7, No. two variable-frequency motors 8 of No.1 variable-frequency motor, lead to
The transmission speed of conveyer belt is adjusted the rotating speed for overregulating variable-frequency motor.
A kind of more ccd video camera synchronous signal acquisition methods, its overall step are as follows：
Ith, the transmission speed of one-level conveyer belt 5 and two level conveyer belt 6 is adjusted, while adjusts the level interval and vertical of the two
Distance of rising and falling on direction, potato is set to be dropped down onto from the upthrow of one-level conveyer belt 5 on two level conveyer belt 6, and will not be to horse
Bell potato causes to damage；
IIth, when potato reaches the end of one-level conveyer belt 5, photoelectric sensor 15 is sent to synchronizing signal controller 11
Detection signal；Synchronizing signal controller 11 sends synchronizing signal to four ccd video cameras immediately after detection signal is received；Four
Platform ccd video camera is after synchronizing signal is received while starts, and 360 ° of IMAQs without dead angle are carried out to potato；
IIIth, obtained image information is passed through CAT by four ccd video cameras after potato surface image information is collected
Netting twine 14 sends the data buffer area of PCI-Express 10 to；PCI-Express 10 is again connect the great amount of images data received by PCI
Mouth is delivered in main control computer 12；
IVth, main control computer 12 handles out control signal and is sent to horse after the image of ccd video camera collection is received
Bell potato self-grading device, so as to realize damage and the weight grading to potato.
Synchronizing signal controller 11 in the present invention by STC89C52 single chip, 1602 liquid crystal displays, amplifying circuit and
Matrix keyboard forms, and its circuit control principle figure is as shown in Figure 2.It make use of the timer module of single-chip microcomputer, and generation can touch
The square-wave signal of ccd video camera collection is sent out, simultaneously because the voltage that single-chip microcomputer individually exports does not meet the trigger voltage of camera, is made
The amplification to voltage is realized with amplifying circuit, meets the triggering requirement for voltage to camera.The main function of matrix keyboard
It is to realize the setting to square wave signal frequency and dutycycle, 1602 liquid crystal displays are primarily to the square wave of real-time display output
The frequency and dutycycle of signal.
Wherein, the square-wave signal flow chart of single-chip microcomputer is as shown in Figure 3.The present invention to the timing function of single-chip microcomputer by setting
Put, realize the control to low and high level output time, and then obtain triggering the pulse signal of camera collection.Can by Fig. 3
Know, whether the mode inquired about using single-chip microcomputer, the count value for understanding low and high level in real time meets count requirement, accelerates CPU place
The time is managed, realizes the real-time output of waveform.
The present invention is realized using the scheme of flat throwing and machine vision technique and the complete of potato integral surface information is adopted
Collection, at the same control the quality of feed belt and the movement velocity of two conveyer belts and both horizontally and vertically on distance,
It ensure that potato will not be by too big impact after falling so that potato surface will not be by secondary damage.
Above-mentioned embodiment is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the range of technical scheme, also belong to this hair
Bright protection domain.
Claims (6)
- A kind of 1. more ccd video camera synchronous signal acquisition devices, it is characterised in that：It includes light optional equipment, one-level conveyer belt (5), two level conveyer belt (6), synchronizing signal controller (11)；After the two level conveyer belt (6) is arranged at one-level conveyer belt (5) Side lower end；Level interval, vertical interval between one-level conveyer belt (5) and two level conveyer belt (6) are transmitted with potato from one-level On safe falling to two level conveyer belt (6) it is foundation after being dished out in band (5)；The smooth optional equipment be divided into No.1 ccd video camera (1), No. two ccd video cameras (2), No. three ccd video cameras (3), No. four Ccd video camera (4)；The No.1 ccd video camera (1), No. two ccd video cameras (2), No. three ccd video cameras (3), No. four CCD take the photograph Arranged in space of the camera (4) between one-level conveyer belt (5) and two level conveyer belt (6) in positive tetrahedron, in potato Comprehensive no dead angle is carried out in descent to it to take pictures；Photoelectric sensor (15) is provided with above the rear end of the one-level conveyer belt (5)；The output of the photoelectric sensor (15) End is connected by wire (13) with synchronizing signal controller (11)；The output end of the synchronizing signal controller (11) is by leading Line respectively with No.1 ccd video camera (1), No. two ccd video cameras (2), No. three ccd video cameras (3), No. four ccd video camera (4) phases Connection；The photoelectric sensor (15) detect potato since the rear end of one-level conveyer belt (5) by and will level throw motion When, detection signal is sent to synchronizing signal controller (11) in real time, controlled under the control action of synchronizing signal controller (11) Four ccd video cameras of system synchronize to the potato dished out takes pictures, and ensures image information while property；The No.1 ccd video camera (1), No. two ccd video cameras (2), No. three ccd video cameras (3), No. four ccd video cameras (4) are adopted The potato surface image information collected is sent in main control computer (12) by the PCI-Express (10) of four-way；The master After control computer (12) analyzes and processes to image information, to the potato self-grading device of two level conveyer belt (6) rear end Control signal is sent, realizes the classification to potato defect and size.
- 2. more ccd video camera synchronous signal acquisition devices according to claim 1, it is characterised in that：The one-level transmission Collect conveying device with potato and be connected in the front end of band (5)；The transporting velocity of one-level conveyer belt (5) collects conveying compared with potato Device, the transporting velocity of two level conveyer belt (6) are fast, are easy to pull open the transmission range between adjacent potato, conveniently take pictures.
- 3. more ccd video camera synchronous signal acquisition devices according to claim 1, it is characterised in that：The synchronizing signal Controller (11) is also connected by wire with main control computer (12), and synchronizing signal controller (11) is receiving photoelectric sensing After the signal that device (15) is sent, four ccd video cameras are controlled to synchronize bat under the control action of main control computer (12) According to.
- 4. more ccd video camera synchronous signal acquisition devices according to claim 1 or 2, it is characterised in that：The one-level passes It is 1-10cm to send the vertical interval between band (5) and two level conveyer belt (6).
- 5. more ccd video camera synchronous signal acquisition devices according to claim 4, it is characterised in that：The one-level transmission Band (5), the lower end of two level conveyer belt (6) are respectively arranged with No.1 variable-frequency motor (7), No. two variable-frequency motors (8).
- A kind of 6. more ccd video camera synchronous signal acquisition methods, it is characterised in that：The overall step of methods described is as follows：Ith, one-level conveyer belt (5) and the transmission speed of two level conveyer belt (6) are adjusted, while adjusts the level interval and vertical of the two Distance of rising and falling on direction, potato is set to be dropped down onto from one-level conveyer belt (5) upthrow on two level conveyer belt (6), and will not Potato is caused to damage；IIth, when potato reaches the end of one-level conveyer belt (5), photoelectric sensor (15) is sent out to synchronizing signal controller (11) Go out detection signal；Synchronizing signal controller (11) sends synchronizing signal and imaged to four CCD immediately after detection signal is received Machine；Four ccd video cameras are after synchronizing signal is received while start, and 360 ° of IMAQs without dead angle are carried out to potato；IIIth, obtained image information is passed through CAT netting twines by four ccd video cameras after potato surface image information is collected (14) data buffer area of PCI-Express (10) is sent to；The great amount of images data received are passed through PCI by PCI-Express (10) again Interface is delivered in main control computer (12)；IVth, main control computer (12) handles out control signal and is sent to Ma Ling after the image of ccd video camera collection is received Potato self-grading device, so as to realize damage and the weight grading to potato.
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Cited By (4)
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| CN108253908A (en) * | 2017-12-29 | 2018-07-06 | 浙江大学 | The image detecting method of contact point radius of curvature in a kind of potato compression test |
| CN109100364A (en) * | 2018-06-29 | 2018-12-28 | 杭州国翌科技有限公司 | A kind of tunnel defect monitoring system and monitoring method based on spectrum analysis |
| CN110567371A (en) * | 2018-10-18 | 2019-12-13 | 天目爱视（北京）科技有限公司 | Illumination control system for 3D information acquisition |
| CN115041425A (en) * | 2022-06-06 | 2022-09-13 | 昆山凯普勒自动化工程有限公司 | Automatic weighing detection equipment and detection method for tablet personal computer |
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| CN115041425A (en) * | 2022-06-06 | 2022-09-13 | 昆山凯普勒自动化工程有限公司 | Automatic weighing detection equipment and detection method for tablet personal computer |
| CN115041425B (en) * | 2022-06-06 | 2023-03-14 | 昆山凯普勒自动化工程有限公司 | Automatic weighing detection equipment and detection method for tablet personal computer |
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| Publication number | Publication date |
|---|---|
| CN107389694B (en) | 2023-04-25 |
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