CN204559715U - Based on the rotating scan imaging device of line-scan digital camera - Google Patents
Based on the rotating scan imaging device of line-scan digital camera Download PDFInfo
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- CN204559715U CN204559715U CN201520212117.6U CN201520212117U CN204559715U CN 204559715 U CN204559715 U CN 204559715U CN 201520212117 U CN201520212117 U CN 201520212117U CN 204559715 U CN204559715 U CN 204559715U
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Abstract
The utility model discloses a kind of rotating scan imaging device based on line-scan digital camera, a line-scan digital camera should be comprised based on the rotating scan imaging device of line-scan digital camera, the affixed fixed part of fuselage of described line-scan digital camera, described fixed part connects a power part driving described line-scan digital camera to rotate step by step with fixed angle, and described line-scan digital camera is also provided with the support component that the described line-scan digital camera of a support rotates.Device of the present utility model goes for the reference object of different size, and can take quickly and efficiently, saves time; Apparatus structure is simply light, it is little, easy to adjust to take up room and accurately, machining cost is low, be convenient to mobile and place.
Description
Technical field
The utility model belongs to the acquisition technique field of image, relates to a kind of rotating scan imaging device based on line-scan digital camera.
Background technology
In field of machine vision, line-scan digital camera is the special visual machine of a class.As its name suggests, its image obtained is in " line " shape, and length is extremely long, and width only has several pixel.Line-scan digital camera has its distinctive advantage: the cost of line-scan digital camera and scanning means is significantly less than the area array cameras of same homalographic, equal resolution.The coordinate of the scan line of line-scan digital camera is provided by grating, and the indicating accuracy of high accuracy grating scale is higher than the accuracy of manufacture of area array cameras image space-between, and in this sense, the image that line-scan digital camera obtains precision is in a scanning direction higher than area array cameras.Therefore, the method that current line-scan digital camera coordinates scanning means to obtain image is used extensively, being mainly used in the image procossing of industry, medical treatment, scientific research and security fields, especially even can not replacing with area array cameras when requiring that visual field is large, image resolution ratio is high.
Based on the characteristic of line-scan digital camera, the mode adopting at the uniform velocity displacement transducer is needed when imaging, utilizing one or more camera to carry out continuous sweep line by line to being imaged object, to reach, its whole surface uniform being detected, or the face system of battle formations picture be made up of multirow is processed.The imaging device of this line sweep mode is formed primarily of asynchronous machine support and line-scan digital camera.Line-scan digital camera laterally or longitudinally at the uniform velocity moves under the driving of motor, a line image is gathered according to fixed time interval, wherein the time interval depends primarily on optical-integral-time, then taken multi-line images is merged into a complete image, thus completes shooting.
There is following defect in this device: when the object be taken is larger, and owing to being subject to the restriction of asynchronous machine support height or width, be difficult to obtain complete image, namely allowing to acquisition also can be consuming time longer, and efficiency is lower; Asynchronous machine supporting structure is complicated, and weight is large, takes up room large, is not easy to mobile and places, and freely can not select reference object and adjustment shooting angle.
Utility model content
The technical problems to be solved in the utility model be in order to overcome complex structure that prior art exists, weight large, take up room large, take inefficient defect, a kind of rotating scan imaging device based on line-scan digital camera is provided.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of rotating scan imaging device based on line-scan digital camera, it comprises a line-scan digital camera, it is characterized in that, the affixed fixed part of fuselage of described line-scan digital camera, described fixed part connects a power part driving described line-scan digital camera to rotate step by step with fixed angle, and described line-scan digital camera is also provided with the support component that the described line-scan digital camera of a support rotates.
Preferably, described power part is stepping motor.Stepping motor can rotate with fixed angle by drive wire array camera length by length, can realize controlling accurately.
Preferably, described fixed part is a sleeve, and the rotating shaft of described stepping motor is provided with a motor gear, and the outside of described sleeve is provided with the gear teeth be meshed with described motor gear.By the engagement of gear, the accurate transmission of power can be realized.
Preferably, described support component comprises a bearing, and the outer cover of the camera lens of described line-scan digital camera is located at described bearing, and the shaft center line of described bearing overlaps with the shaft center line of described sleeve.Bearing has the performance that good support rotates.
Preferably, the below of described bearing is provided with a support of bearing.By the support of bearing, effectively can support bearing and line-scan digital camera.
Preferably, described bearing is ball bearing.Ball bearing has cost advantage low, easy for installation.
Preferably, described line-scan digital camera comprises a linear array sensitive chip, and described linear array sensitive chip is located at the camera lens place of described line-scan digital camera.Linear array sensitive chip is existing parts, and it can make line-scan digital camera obtain image that is clear, high-fidelity.
Preferably, the described rotating scan imaging device based on line-scan digital camera also comprises a computer, and described computer is connected to described motor and described line-scan digital camera.Computer has powerful operation, control and image-capable, can realize the accurate control to this device, and processes the image that this device photographs rapidly and accurately.
Positive progressive effect of the present utility model is: even if captured object is comparatively large, also only line-scan digital camera need be rotated 180 ° just can collect complete image, very little to the size dimension restriction of reference object, and can take quickly and efficiently, saves time; Apparatus structure is simply light, it is little, easy to adjust to take up room and accurately, machining cost is low, be convenient to mobile and place, therefore, can more independently select reference object and shooting angle.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the rotating scan imaging device based on line-scan digital camera of the utility model preferred embodiment.
Fig. 2 is the schematic side view of the rotating scan imaging device based on line-scan digital camera of the utility model preferred embodiment.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the utility model to be described.
As depicted in figs. 1 and 2, a kind of rotating scan imaging device based on line-scan digital camera, it comprises line-scan digital camera 1 and stepping motor 8, is provided with electric machine support 7 below stepping motor 8; The rotating shaft of stepping motor 8 is provided with motor gear 6; The affixed sleeve 4 of fuselage of line-scan digital camera 1, the outside of sleeve 4 is provided with the gear teeth be meshed with motor gear 6; The outer cover of the camera lens of line-scan digital camera 1 is provided with the ball bearing 3 of Support Level array camera 1 rotation, and the axial line of ball bearing 3 overlaps with the axial line of sleeve 4; The below of ball bearing 3 is provided with the support of bearing 5; Line-scan digital camera 1 comprises linear array sensitive chip 2, and linear array sensitive chip 2 is located at the camera lens place of line-scan digital camera 1; Stepping motor 8 is connected a computer 11 with line-scan digital camera 1 respectively by connecting line 10.Wherein, line-scan digital camera 1 is connected with power supply by line-scan digital camera power interface 9.
Computer 11 control step motor 8 runs with setup parameter, and the rotating shaft drive motor gear 6 of stepping motor 8 rotates.The gear teeth meshing of motor gear 6 and sleeve 4, and then band moving sleeve 4 rotates.Because sleeve 4 is fixed on line-scan digital camera 1 outside, then line-scan digital camera 1 and linear array sensitive chip 2 rotate thereupon.The inner ring of ball bearing 3 is fixed on the outside of the camera lens of line-scan digital camera, and can ensure that line-scan digital camera 1 rotates, both are supported by the support of bearing 5.
Wherein, based on the requirement of precision, the anglec of rotation α after selecting line-scan digital camera 1 and linear array sensitive chip 2 often to gather a line image, and set control step motor 8 by computer 11, and then drive line-scan digital camera 1 and linear array sensitive chip 2 to rotate.Scan subject in rotary course, can complete scanning when line-scan digital camera rotates 180 °, stepping motor runs step number N=180/ α.The multi-line images collected is transferred to computer 11 by connecting line 10, after software merging treatment, obtain complete image.
The formation method of the rotating scan imaging device based on line-scan digital camera of the present embodiment, it comprises the following steps:
S1, the rotating scan imaging device based on line-scan digital camera of the present embodiment is positioned over camera site, this device is adjusted to suitable shooting angle, and regulates the focal length of line-scan digital camera;
S2, based on required precision, time for exposure t when selecting and determine that line-scan digital camera often gathers the anglec of rotation α after a line image and gathers image;
S3, the parameter of linear camera determined according to step S2, by computer settings and control step motor, stepping motor is rotated by motor gear band moving sleeve and line-scan digital camera;
S4, under driving stepper motor, line-scan digital camera often collects rotation alpha after a line image, and after line-scan digital camera rotates 180 ° altogether, line-scan digital camera completes scanning;
The multi-line images that S5, line-scan digital camera collect is transferred to computer, after the software process of control treatment equipment, obtain complete image.
Be below the specific embodiments of the present embodiment practical application:
Based on the experimental study of single injector methane coaxial jet diffusion flame, application the utility model gathers flame image.Nozzle is the non-premixed structure of coaxial triple channel, and wherein, central passage is methane, and annular space is oxygen, and outer shroud is by nitrogen and air exclusion.Line-scan digital camera adopts the refrigeration mode EO-1 hyperion camera (concrete model is V8E-EMCCD) of five bell optics limited companies, and its operating wavelength range is 380 ~ 800nm, is visible-range.
First, make methane smooth combustion under experimental conditions, this device is placed into the position and angle being convenient to take, and regulates the focal length of EO-1 hyperion camera to make imaging clearly; Again based on experimental precision requirement, select the anglec of rotation of camera to be 0.5 °, the time for exposure is 30ms, and adopts and on average obtain final flame image 3 times; Use computer settings control step driven by motor EO-1 hyperion camera rotates 0.5 ° at interval of 90ms, can complete the scanning to methane flame when camera rotates 180 °, then stepping motor runs step number N=180/0.5=360; Finally, the multi-line images collected is transferred to computer, merges obtain complete methane flame image through software process.
The apparatus structure of the present embodiment is simply light, it is little to take up room, and can carry out convenience and accurately regulate, its machining cost be low, and be convenient to mobile and place, therefore, user more independently can select reference object and shooting angle etc.
Adopt the rotating scan imaging device based on line-scan digital camera of the present embodiment, even if captured object is larger, also only line-scan digital camera need be rotated 180 ° just can collect complete image, therefore, the device rotating scan imaging of the present embodiment is not by the restriction of captured object size, go for larger-size reference object, gather image rapidly and efficiently during the shooting of this device, can shooting time be saved.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Although the foregoing describe embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection range of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these execution modes, but these change and amendment all falls into protection range of the present utility model.
Claims (8)
1. the rotating scan imaging device based on line-scan digital camera, it comprises a line-scan digital camera, it is characterized in that, the affixed fixed part of fuselage of described line-scan digital camera, described fixed part connects a power part driving described line-scan digital camera to rotate step by step with fixed angle, and described line-scan digital camera is also provided with the support component that the described line-scan digital camera of a support rotates.
2., as claimed in claim 1 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, described power part is stepping motor.
3. as claimed in claim 2 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, described fixed part is a sleeve, and the rotating shaft of described stepping motor is provided with a motor gear, and the outside of described sleeve is provided with the gear teeth be meshed with described motor gear.
4. as claimed in claim 3 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, described support component comprises a bearing, and the outer cover of the camera lens of described line-scan digital camera is located at described bearing, and the shaft center line of described bearing overlaps with the shaft center line of described sleeve.
5., as claimed in claim 4 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, the below of described bearing is provided with a support of bearing.
6., as claimed in claim 4 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, described bearing is ball bearing.
7., as claimed in claim 4 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, described line-scan digital camera comprises a linear array sensitive chip, and described linear array sensitive chip is located at the camera lens place of described line-scan digital camera.
8., as claimed in claim 1 based on the rotating scan imaging device of line-scan digital camera, it is characterized in that, the described rotating scan imaging device based on line-scan digital camera also comprises a computer, and described computer is connected to described power part and described line-scan digital camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520212117.6U CN204559715U (en) | 2015-04-09 | 2015-04-09 | Based on the rotating scan imaging device of line-scan digital camera |
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| CN201520212117.6U CN204559715U (en) | 2015-04-09 | 2015-04-09 | Based on the rotating scan imaging device of line-scan digital camera |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472251A (en) * | 2015-12-30 | 2016-04-06 | 温州大学 | Linear scanning camera panoramic imaging device |
| CN105611131A (en) * | 2015-12-30 | 2016-05-25 | 温州大学 | Method for panoramic imaging of line scan camera |
| CN106161888A (en) * | 2015-04-09 | 2016-11-23 | 华东理工大学 | Rotating scan imaging device based on line-scan digital camera and formation method thereof |
| CN108615233A (en) * | 2018-04-17 | 2018-10-02 | 成都唐源电气股份有限公司 | A kind of dropper image processing method, the dropper capturing system based on line-scan digital camera |
| CN108825972A (en) * | 2018-06-14 | 2018-11-16 | 江苏盛矽电子科技有限公司 | A kind of inspection version machine of printing screen plate |
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2015
- 2015-04-09 CN CN201520212117.6U patent/CN204559715U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106161888A (en) * | 2015-04-09 | 2016-11-23 | 华东理工大学 | Rotating scan imaging device based on line-scan digital camera and formation method thereof |
| CN105472251A (en) * | 2015-12-30 | 2016-04-06 | 温州大学 | Linear scanning camera panoramic imaging device |
| CN105611131A (en) * | 2015-12-30 | 2016-05-25 | 温州大学 | Method for panoramic imaging of line scan camera |
| CN105611131B (en) * | 2015-12-30 | 2022-05-31 | 温州大学 | Panoramic imaging method for linear array camera |
| CN105472251B (en) * | 2015-12-30 | 2022-10-25 | 温州大学 | Panoramic imaging device of line scanning camera |
| CN108615233A (en) * | 2018-04-17 | 2018-10-02 | 成都唐源电气股份有限公司 | A kind of dropper image processing method, the dropper capturing system based on line-scan digital camera |
| CN108615233B (en) * | 2018-04-17 | 2021-11-23 | 成都唐源电气股份有限公司 | String image processing method and string snapping system based on linear array camera |
| CN108825972A (en) * | 2018-06-14 | 2018-11-16 | 江苏盛矽电子科技有限公司 | A kind of inspection version machine of printing screen plate |
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