CN201957149U - Image acquisition device for mineral mixture - Google Patents
Image acquisition device for mineral mixture Download PDFInfo
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- CN201957149U CN201957149U CN2011200987068U CN201120098706U CN201957149U CN 201957149 U CN201957149 U CN 201957149U CN 2011200987068 U CN2011200987068 U CN 2011200987068U CN 201120098706 U CN201120098706 U CN 201120098706U CN 201957149 U CN201957149 U CN 201957149U
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- conveyer belt
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Abstract
The utility model discloses an image acquisition device for mineral mixture, which comprises a material separating plate, a baffle plate, a distance adjustment rod, an angle adjusting rod, an infrared ray laser, a linear array camera, an image acquisition card and a computer, wherein, both the infrared ray laser and the linear array camera are fixed in a dust-proof machine body; the dust-proof machine body is positioned above the material separating plate and is not shielded by the baffle plate of an aggregate sampling device; and a light optimization processing device comprises a light-filtering device and a diffuse reflection coating layer, wherein the light-filtering device is mounted right in the front of the linear array camera and the diffuse reflection coating layer is arranged on an aggregate downslide surface of the material separating plate; the computer is connected with the linear array camera of an image acquire obtain device; and the image acquisition card of the image obtain device is mounted on the computer. In the utility model, the image acquisition device realizes the sampling and acquisition to an aggregate flow through the material separating plate, solves the problem of performing total image acquisition to an aggregate falling flow in the past, avoids of damage to the image acquisition device by splashed aggregate particles through adopting the baffle plate, and overcomes the defects of poor acquired picture quality, difficulties in separating particles, and huge processing data.
Description
Technical field
The utility model belongs to mechanical field, is specifically related to a kind of image collecting device that is used for the mineral compound, and this device is used for the asphalt production scene of pavement construction and carries out real-time sampling.
Background technology
Express highway pavement is based on bituminous pavement at present.In asphalt pavement material is formed, the materials amount maximum of gathering materials, shared cost is also maximum.In the production scene of asphalt, only be unilaterally each cold burden storehouse feed amount to be controlled to the grating of gathering materials from mixing building, aggregate grading is not carried out real-time detection.It is too big to cause actual production grating and design grating to depart from through regular meeting like this, thereby the mechanical property of compound and pavement performance are descended, and can not meet design requirement.Therefore, need badly and a kind ofly in the production process of compound, aggregate grading is carried out real-time online and detect, and match the technology that the feed of each feed bin accurately controls, thereby avoid production grating and design grating to produce the phenomenon that departs from more greatly according to design level.Carrying out the real-time image capturing system that detects of aggregate grading at the asphalt production process then is the key point of detection system performance quality.
Because in the production scene of asphalt, the speed of the whereabouts that gathers materials is very fast, the time for exposure that collecting dynamically gathers materials clearly will ask camera is very short, and this has just caused dark partially, the poor contrast of the gradation of image value that camera collected.And the daylight strength difference of different time is bigger, and image capturing system often can not get the constant incident light of light intensity, and the image that causes being collected can't keep the stability of gray value and the uniformity of image background, is unfavorable for thereafter image processing and analysis.
Owing to gathering materials, the whereabouts under a lot of situations in the production scene flows through simultaneously in thick and heavy; each particle blocks the separation that is unfavorable for the image particle mutually in the image that causes collecting; many data volumes to be processed are just big more more for number of particles simultaneously; requirement to computer hardware performance and software operation efficiency is also just high more, and the relevant detection technical costs will improve.
Moreover, because what take is aggregate particle in the actual motion, when taking high-speed moving object for the definition that improves image requires the sweep speed of camera quite high, but the line scan rate of camera is conditional, and the high more camera price of sweep speed is high more.Simultaneously because the diversity of aggregate particle type in the actual production, high more in more little its whereabouts shooting process of particle of particle diameter for reducing the desired filming frequency of error.Addressing this problem the most cost-effective mode is to manage to reduce the falling speed of gathering materials.
In addition, in use, conveyer belt produces owing to plant equipment inevitably has vibrations in the process of operation, causes having in the process of gathering materials along with the conveyer belt whereabouts possibility that splashes, if the particle diameter that gathers materials is excessive, must cause certain damage to image collecting device.And gathering materials upsprings can influence the process of image capture device images acquired, thereby the quality of the image that gathers materials that influence collects.
Summary of the invention
Defective or deficiency at above-mentioned prior art existence, the invention provides a kind of image collecting device that is used for the mineral compound, this device solves existing aggregate grading detection technique road pavement form and damage, need to gather all view data of gathering materials, can't adapt to the many grades of difficult problems of gathering materials the detection characteristics and can't obtain high-quality, tractable digital picture in the aggregate grading link of asphalt production scene.
In order to realize above task, the following technical solution that the present invention adopts:
A kind of image collecting device that is used for the mineral compound is characterized in that, by forming with lower module:
The sampling apparatus that gathers materials comprises cutting plate, distance adjustment bar and angular adjustment bar, and it is terminal and do not contact with one-level conveyer belt end that described cutting plate tilts to be installed in the one-level conveyer belt; Described distance adjustment bar is installed in the upper end of cutting plate and parallel with first conveyer belt, thereby the scalable drive of this distance adjustment bar cutting plate upper end move left and right is to regulate the horizontal range of cutting plate and one-level conveyer belt; Described angular adjustment bar is installed in the lower end of cutting plate, and the lower end move left and right of drive cutting plate is to regulate the angle of inclination of cutting plate thereby this angular adjustment bar can stretch; Above close conveyer belt one end of described cutting plate, be provided with baffle plate, thereby described baffle plate can rotate the gradient of the relative cutting plate of controllable register around the axle of its upper end.
Image acquiring device comprises iraser, line-scan digital camera and image pick-up card, and described iraser and line-scan digital camera are fixed in the dustproof case; Described dustproof case is positioned at cutting plate top, and the baffle plate of the sampling apparatus that do not gathered materials blocks, and described iraser and line-scan digital camera are all over against cutting plate, and the front end formed plane of iraser and line-scan digital camera is parallel with cutting plate; The acquisition target that described line-scan digital camera camera lens covers is for being shunted by cutting plate on the one-level conveyer belt of below, each grade cold burden storehouse and gathering materials along the sampling that cutting plate glides, and the visual field width of line-scan digital camera camera lens is the width of asphalt mixing building conveyer belt;
The optical processing optimization means comprises filtering apparatus and diffuse reflection coating layer; Described filtering apparatus is installed in the line-scan digital camera dead ahead, and described diffuse reflection coating layer is coated in the glide slope that gathers materials of cutting plate;
Communication and memory device comprise data wire and computer, and described computer links to each other with line-scan digital camera described in the image acquiring device by data wire;
Image pick-up card in the described image acquiring device is installed on computers.
Advantage of the present invention:
1, realized in the asphalt production scene the quick collection of aggregate grading data, overcome the labour intensity that existing core boring sampling method has big, detect the cost height, shortcoming such as accuracy of detection is low, detection efficiency is low, fail safe is low, the influence of examined person's human factor is serious.
2, need not asphalt and bituminous pavement collection sampling test specimen, in the aggregate grading process, the gather materials collection of dynamic image, promptly avoided road pavement damaging, exempted and repaired cost and the not influence of the otherness of examined sample and particularity again of test specimen cost of transportation.
3, can carry out long-term digitalized image in each grade aggregate grading process, the timing of discovery level is in time gathered materials and is changed dynamically, provides reference as real-time production control, avoids the production of defective asphalt, saves time and reduces cost.
4, must carry out the problem that all images is gathered to the whereabouts stream that gathers materials by the sampling collection of cutting plate realization to the stream that gathers materials being set, having solved, overcome the difficult separation of poor image quality, particle that collects, the defective that the deal with data amount is big.
5, can pass through to transmit spacing interval between shelterbelt at different aggregate sizes and flow size, thereby the size of control sampling set materials flow adapts to the demand of detection of dynamic apart from control lever dynamic adjustments cutting plate and one-level; At different gather materials feature and photographing requests, come the gliding speed of control sets materials flow by the angle of inclination of control cutting plate, make gliding speed require within controlled range, to adjust according to detecting; The scope of application and the flexibility of acquisition method have been enlarged.
6, realized that by being provided with of cutting plate position is light sampling gathers materials and be close to the shooting background plate, it is the whereabouts of cutting plate, thereby farthest eliminate the detection influence that shade brought of gathering materials in the image that collects, reduced the difficulty of image processing, improved acquisition precision.
7, the digitalized image of round-the-clock aggregate grading is carried out in the influence that not changed by production scene daylight and other light condition, reduced and detected on-the-spot environmental requirement, improved the operating efficiency of gathering, realize the Long-distance Control of computer to image capture device, for remote detection provides possibility, avoided simultaneously that the testing staff stays that dust is many, differential air, the abominable production scene of environment, improved staff's operational environment.
9, by introducing dustproof case, laser and line-scan digital camera are placed in the cabinet, reduced the production scene dust the influence of collection result and the damage of image capture device.
10,, guarantee that effectively image capture device is not subjected to splashing the damage of aggregate particle by baffle plate is set.In addition, baffle plate also makes the part of upspringing gather materials and can glide along cutting plate, thus the quality of the image that gathers materials that assurance collects, the performance of raising image collecting device.
Description of drawings
Fig. 1 is the structural representation that is used for the digitalized image acquisition system of aggregate grading detection of the present invention.
Fig. 2 is the connection diagram of acquisition system of the present invention in actual application.
Below in conjunction with the drawings and specific embodiments the present invention will be further explained explanation.
Embodiment
As shown in Figure 1, the image collecting device that is used for the mineral compound of the present invention, by forming with lower module:
The sampling apparatus that gathers materials comprises cutting plate 8, distance adjustment bar 9 and angular adjustment bar 10, and it is terminal and do not contact with one-level conveyer belt 1 end that described cutting plate 8 tilts to be installed in one-level conveyer belt 1; The part of gathering materials slides into mixing building conveyer belt 11 8 times by cutting plate, and another part is by dropping to mixing building conveyer belt 11 between cutting plate 8 and the one-level conveyer belt 1; 1 horizontal range of cutting plate 8 and one-level conveyer belt is 10 ~ 40cm, and vertical range is 15cm; Angle is 0 ° ~ 90 ° between cutting plate and ground.Described distance adjustment bar 9 is installed in the upper end of cutting plate 8 and parallel with first conveyer belt 1, thereby these distance adjustment bar 9 scalable drive cutting plate 8 upper end move left and right are with the horizontal range of adjusting cutting plate 8 with one-level conveyer belt 1, thereby the sampling flow that control is gathered materials; Described angular adjustment bar 10 is installed in the lower end of cutting plate 8, and the lower end move left and right that drives cutting plate 8 to be regulating the angle of inclination of cutting plate 8 thereby this angular adjustment bar 10 can stretch, thus the falling speed of control sampling set materials flow; Above described cutting plate 8 close conveyer belt 1 one ends, be provided with baffle plate 14, thereby the gradient that described baffle plate 14 can rotate controllable registers 14 relative cutting plates 8 around the axle 15 of its upper end, distance between described axle 15 and the cutting plate 8 is 15cm ~ 20cm, and described baffle plate 14 is 0 ° ~ 90 ° around the angle adjustable of axle 15.
Feature is different changes according to the stream that gathers materials for the amplitude of accommodation of distance adjustment bar 9 and angular adjustment bar 10, gathers materials to flow feature and comprise aggregate size and flow size.
Image acquiring device comprises iraser 4, line-scan digital camera 2 and image pick-up card, and described iraser 4 and line-scan digital camera 2 are fixed in the dustproof case 3; Described dustproof case 3 is positioned at 40 ~ 60cm place, cutting plate 8 tops, and the baffle plate 14 of the sampling apparatus that do not gathered materials blocks, and there is radiator fan 13 at dustproof case 3 rear portions in order to heat radiation; Described iraser 4 and line-scan digital camera 2 are all over against cutting plate 8, and the front end formed plane of iraser 4 and line-scan digital camera 2 is parallel with cutting plate 8; The acquisition target that described line-scan digital camera 2 camera lenses cover is for being shunted by cutting plate 8 on the 5 below one-level conveyer belts 1 of each grade cold burden storehouse and gathering materials along the sampling that cutting plate 8 glides, and the visual field width of line-scan digital camera 2 camera lenses is the width of asphalt mixing building conveyer belt 11;
The optical processing optimization means comprises filtering apparatus 12 and diffuse reflection coating layer; Described filtering apparatus 12 is installed in line-scan digital camera 2 dead aheads, and filtering apparatus 12 adopts bandpass filter, and this bandpass filter is 95% to the incident light percent of pass of wavelength 800 ~ 2000nm, and all the other wave bands are approximately 0; Filtering apparatus 12 is used for eliminating the interference of visible light to picture quality, reason is that filtering apparatus 12 can block visible light, only make through the infrared laser of reflex reflector reflection and enter the camera lens of line-scan digital camera 2, under round-the-clock condition, make the infrared laser that line-scan digital camera 2 receiving light powers are constant, spectral region is constant by filtering apparatus 12.
Described diffuse reflection coating layer is coated in the glide slope that gathers materials of cutting plate 8; The diffuse reflection coating layer adopts black plastic; Make that the luminous intensity in the acquisition field of view is even; The diffuse reflection coating layer makes the infrared laser that incides on the cutting plate 8 produce diffuse reflection, and makes through irreflexive infrared laser maintenance intensity even.
Communication and memory device comprise data wire and computer 6, and described computer 6 links to each other with line-scan digital camera described in the image acquiring device 2 by data wire; Data wire is provided with data wire relay 7, and data wire relay 7 adopts camerlink signal optical fibre transmitter, can prolong the distance of transfer of data, realizes the remote collection of image and the Long-distance Control of detection system.
Image pick-up card in the image acquiring device is installed on the computer 6.
As shown in Figure 2, the one-level conveyer belt 1 below each cold burden storehouse 5 all is furnished with an image collecting device that is used for the mineral compound of the present utility model, and each harvester all is connected on the computer 6 by data wire.
The course of work of the present utility model is as follows:
Wherein, the position and the angle of inclination of adjustment cutting plate 8 may further comprise the steps: adjusting cutting plate 8 is 15cm to the vertical range of one-level conveyer belt 1; Adjustable range control lever 9, making cutting plate 8 is 10 ~ 40cm to the horizontal range of one-level conveyer belt 1; Thereby adjusting angle control lever 10 is adjusted the angle of inclination of cutting plate 8, and angle is 0 ° ~ 90 ° between cutting plate and ground;
Above described cutting plate 8 close conveyer belt 1 one ends, be provided with baffle plate 14, the gradient of controllable register 14 relative cutting plates 8.
Iraser 4 and line-scan digital camera 2 are placed in the dustproof case 3, dustproof case 3 is fixed in 40 ~ 60cm place, top of cutting plate 8; Can adopt a fixed support that dustproof case 3 is fixing during concrete enforcement, note making the do not gathered materials baffle plate 14 of sampling apparatus of dustproof case 3 to block, and adopt supports will regulate iraser 4 and line-scan digital camera 2 is fixed in that dustproof case 3 is inner; Regulate the angle of iraser 4 and line-scan digital camera 2, make iraser 4 parallel with cutting plate 8 with line-scan digital camera 2 formed planes, iraser 4 and line-scan digital camera 2 are apart from the glide slope 30 ~ 50cm that gathers materials that samples; The acquisition target that line-scan digital camera 2 camera lenses cover gathers materials for the sampling that is divided to 8 downslides of cutting plate 8 upper edge cutting plates on the 5 below one-level conveyer belts 1 of each grade cold burden storehouse, and the visual field width is the width of asphalt mixing building conveyer belt 11; Line-scan digital camera 2 is carried out the filtering veiling glare handle, and the reverberation of the glide slope that gathers materials of cutting plate 8 is carried out uniform treatment;
Wherein, line-scan digital camera 2 is carried out the filtering veiling glare handle employing installation filtering apparatus 12 before the camera lens of line-scan digital camera 2, described filtering apparatus 12 adopts bandpass filters, and the cut-off wavelength of this bandpass filter is 685nm, is 95% to the incident light percent of pass of wavelength 800nm to 2000nm.
The reverberation of the glide slope that gathers materials of cutting plate 8 is carried out uniform treatment adopts the glide slope that gathers materials at cutting plate 8 to add one deck diffuse reflection coating layer.
Wherein, time for exposure of line-scan digital camera 2 and line scan rate being set comprises the steps: that computer 6 calculates to take and is incident to the infrared ray light intensity of line-scan digital camera 2 and the highest falling speed of gathering materials in the visual fields; Computer 6 is provided with the time for exposure of line-scan digital camera 2, makes line-scan digital camera 2 obtain the infrared ray of enough light intensity; Computer 6 is provided with the line scan rate of line-scan digital camera 2, makes line scan rate much larger than taking the falling speed of gathering materials in the visual field.
With the image compression of gathering materials that is in a falling state that collects, and by communication equipment transmission and be saved in the disk of computer 6.
The direction of arrow refers to the travel direction of gathering materials among the figure.
Claims (8)
1. an image collecting device that is used for the mineral compound is characterized in that, by forming with lower module:
The sampling apparatus that gathers materials comprises cutting plate (8), distance adjustment bar (9) and angular adjustment bar (10), and it is terminal and do not contact with one-level conveyer belt (1) end that described cutting plate (8) tilts to be installed in one-level conveyer belt (1); Described distance adjustment bar (9) is installed in the upper end of cutting plate (8) and parallel with first conveyer belt (1), this distance adjustment bar (9) thus scalable drive cutting plate (8) upper end move left and right to regulate the horizontal range of cutting plate (8) and one-level conveyer belt (1); Described angular adjustment bar (10) is installed in the lower end of cutting plate (8), this angular adjustment bar (10) thus can stretch drive cutting plate (8) the lower end move left and right to regulate the angle of inclination of cutting plate (8); Be provided with baffle plate (14) at described cutting plate (8) near the top of conveyer belt (1) one end, thereby described baffle plate (14) can be around the axle (15) of its upper end rotation controllable register (14) gradient of cutting plate (8) relatively;
Image acquiring device comprises iraser (4), line-scan digital camera (2) and image pick-up card, and described iraser (4) and line-scan digital camera (2) are fixed in the dustproof case (3); Described dustproof case (3) is positioned at cutting plate (8) top, and the baffle plate (14) of the sampling apparatus that do not gathered materials blocks, described iraser (4) and line-scan digital camera (2) are all over against cutting plate (8), and the front end formed plane of iraser (4) and line-scan digital camera (2) is parallel with cutting plate (8); The acquisition target that described line-scan digital camera (2) camera lens covers is gone up by cutting plate (8) shunting and along the sampling that cutting plate (8) glides for each grade cold burden storehouse (5) below one-level conveyer belt (1) and is gathered materials, and the visual field width of line-scan digital camera (2) camera lens is the width of asphalt mixing building conveyer belt (11);
The optical processing optimization means comprises filtering apparatus (12) and diffuse reflection coating layer; Described filtering apparatus (12) is installed in line-scan digital camera (2) dead ahead, and described diffuse reflection coating layer is coated in the glide slope that gathers materials of cutting plate (8);
Communication and memory device comprise data wire and computer (6), and described computer (6) links to each other with line-scan digital camera described in the image acquiring device (2) by data wire;
Image pick-up card in the described image acquiring device is installed on the computer (6).
2. the image collecting device that is used for the mineral compound as claimed in claim 1 is characterized in that, horizontal range is 10 ~ 40cm between described cutting plate (8) and one-level conveyer belt (1), and vertical range is 15cm; Angle is 0 ° ~ 90 ° between cutting plate and ground.
3. the image collecting device that is used for the mineral compound as claimed in claim 1 is characterized in that, described filtering apparatus (12) adopts bandpass filter, and this bandpass filter is 95% to the incident light percent of pass of wavelength 800 ~ 2000nm, and all the other wave bands are approximately 0.
4. the image collecting device that is used for the mineral compound as claimed in claim 1, it is characterized in that, described data wire is provided with data wire relay (7), and described data wire relay (7) can be crossed the remote collection of realization image and the Long-distance Control of detection system.
5. the image collecting device that is used for the mineral compound as claimed in claim 4 is characterized in that, described data wire relay (7) adopts camerlink signal optical fibre transmitter.
6. the image collecting device that is used for the mineral compound as claimed in claim 1 is characterized in that, described baffle plate (14) is 0 ° ~ 90 ° around the angle adjustable of axle (15).
7. the image collecting device that is used for the mineral compound as claimed in claim 1 is characterized in that, the distance between described axle (15) and the cutting plate (8) is 15cm ~ 20cm.
8. the image collecting device that is used for the mineral compound as claimed in claim 1 is characterized in that, there is radiator fan (13) at described dustproof case (3) rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200987068U CN201957149U (en) | 2011-04-07 | 2011-04-07 | Image acquisition device for mineral mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200987068U CN201957149U (en) | 2011-04-07 | 2011-04-07 | Image acquisition device for mineral mixture |
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| Publication Number | Publication Date |
|---|---|
| CN201957149U true CN201957149U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200987068U Expired - Fee Related CN201957149U (en) | 2011-04-07 | 2011-04-07 | Image acquisition device for mineral mixture |
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| Country | Link |
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| CN (1) | CN201957149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798347A (en) * | 2012-08-28 | 2012-11-28 | 上海金玺实验室有限公司 | Measurement method of displacement and speed |
| CN103868923A (en) * | 2014-03-24 | 2014-06-18 | 中国石油大学(华东) | Device for collecting crude oil asphaltene structure images and working method thereof |
-
2011
- 2011-04-07 CN CN2011200987068U patent/CN201957149U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798347A (en) * | 2012-08-28 | 2012-11-28 | 上海金玺实验室有限公司 | Measurement method of displacement and speed |
| CN103868923A (en) * | 2014-03-24 | 2014-06-18 | 中国石油大学(华东) | Device for collecting crude oil asphaltene structure images and working method thereof |
| CN103868923B (en) * | 2014-03-24 | 2016-05-11 | 中国石油大学(华东) | A kind of crude oil structure of asphaltene image collecting device and method of work thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
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Granted publication date: 20110831 Termination date: 20130407 |