WO2023197919A1 - 一种流水作业生产线旋转拍照方法 - Google Patents
一种流水作业生产线旋转拍照方法 Download PDFInfo
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- WO2023197919A1 WO2023197919A1 PCT/CN2023/086431 CN2023086431W WO2023197919A1 WO 2023197919 A1 WO2023197919 A1 WO 2023197919A1 CN 2023086431 W CN2023086431 W CN 2023086431W WO 2023197919 A1 WO2023197919 A1 WO 2023197919A1
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 37
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- 230000007246 mechanism Effects 0.000 claims description 49
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- 238000005096 rolling process Methods 0.000 claims description 12
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- 230000007547 defect Effects 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Definitions
- the invention relates to the technical field of production line image acquisition, and in particular to a method for rotating and photographing a production line in a flow operation.
- disposable nitrile gloves as medical protective equipment, have very strict quality requirements.
- the gloves will produce various defects during the operation of the production line, such as bruises, broken fingers, white spots, mosquitoes, etc., and defects
- the generation location is very random, and it will occur in curled edges, palms, fingers, etc.
- the present invention provides a rotation photography method for a flow operation production line, which includes the following steps:
- the products passing through the fixed section of the production line have a distance D between adjacent products
- the second perspective image of the product Pn and the fourth perspective image of the adjacent product P(n-1) are collected.
- This method includes the process of determining the initial acquisition moment, that is, the determination process of the moment when qualified images are first acquired, as follows:
- Start shooting debugging mode trigger the shooting equipment at random times to collect images of two adjacent products passing through a fixed section of the production line;
- S3 Set the step triggering time interval, and continuously trigger shooting at step time intervals. The moment when the collected product image matches the standard image is determined as the initial acquisition time t0.
- the first perspective image and the third perspective image are respectively the front image Ai and the reverse image Ci of the product; the second perspective image and the fourth perspective image are respectively the left side image Bi and the right side image Bi of the product. Side image Di.
- the production line is provided with a transmission mechanism; limited tooling is installed on the side of the transmission mechanism; the product is a hand mold mechanism transmitted through the transmission mechanism;
- the hand mold mechanism includes a hand mold and a hand mold base.
- the hand mold base is provided with a rolling part and a limiting part.
- the rolling part engages with a transmission mechanism, and the transmission mechanism drives the rolling part and the hand mold to rotate forward;
- the rolling part is circular and the circumference is L;
- the limiting fixture includes curved portions provided at both ends and a flat portion positioned in the middle.
- the limiting portion of the hand mold base moves to the flat portion through the curved portion of the limiting fixture, the flat portion engages with the limiting portion to limit the hand.
- the mold rotates; the limiting tooling is
- the feeding mechanism is provided with a head end and an end in the transmission direction.
- the head end and the end are curved structures, and the middle part is a planar structure; the planar structure is parallel to the palm plane of the hand model.
- the end of the limiting tool is set in the fixed section of the production line, and a camera device is provided above the fixed section of the production line.
- the camera device includes a camera and a light shield. board, fill light, and the production line is provided with a production line beam, and the camera, light shield, and fill light are installed on the production line beam.
- a background base is provided below the transmission mechanism corresponding to the position of the camera, and a background plate is provided on the background base.
- the limiting tool is provided with a plurality of supporting parts for fixing the limiting tool.
- the support part is provided with threaded holes for fixing the limiting tooling through bolts
- the production line is provided with a production line frame plate, and the limiting tooling is fixed to the production line frame plate or the transmission mechanism through the supporting part.
- the above method also includes a process of determining the triggering time interval t, as follows:
- Step 1 Collect the front image A1 of product P2 and the reverse image C1 of P1 at the initial acquisition time t0;
- the present invention has designed a unique rotating photography method. Only one photography device is needed, and by controlling the triggering sequence, after the two photography cycles are completed, images of the same product at four different positions at four angles can be obtained, which greatly improves the efficiency of the system. Save image acquisition costs and improve efficiency;
- the present invention has obvious advantages in image acquisition of the hand model mechanism.
- a limit tool on one side of the transmission mechanism of the hand model mechanism, when the hand model mechanism passes the limit tool, the hand model is in a horizontal state and is transmitted forward.
- the hand mold mechanism reaches the curved surface at the end of the limiting tool, the limiting tool releases the limiting function, and the hand mold mechanism starts to rotate.
- Working at the limit A camera device is set above the end of the device, which can more accurately find the reference angle, and trigger the camera sequence with this design. Only one set of camera devices can collect images of the hand model at different rotation angles that meet the requirements;
- the photographing method designed by the present invention only requires one set of photographing devices, and can meet the multi-angle image collection requirements of different production lines and different types of products by controlling the triggering sequence.
- Figure 1 is a schematic diagram of the rotation photography method of the assembly line production line of the present invention
- Figure 2 is a schematic structural diagram of the production line of the present invention.
- Figure 3 is an enlarged schematic diagram of the partial structure in Figure 2;
- Figure 4 is a schematic structural diagram of the limiting tool from the right perspective
- Figure 5 is a schematic structural diagram of the limiting tool from the left perspective
- Figure 6 is a schematic structural diagram of the hand mold mechanism
- Figure 7 is a schematic structural diagram of the hand mold base
- Figure 8 is a schematic diagram of the rotation photography method in the embodiment.
- This method includes the process of determining the initial acquisition moment, that is, the determination process of the moment when qualified images are first acquired, as follows: S1: Start shooting debugging mode: trigger the shooting equipment at random times to collect two adjacent products passing through a fixed section of the production line image; S2: Use the standard image of the third perspective image as the standard image, and compare the collected second product image with the standard image through image recognition; S3: Set the step trigger time interval, and continuously press the step time interval After triggering the shooting, the moment when the collected product image matches the standard image is determined as the initial acquisition time t0.
- this embodiment illustrates the device related to Embodiment 1, which includes a transmission mechanism 3 provided on the production line, and a camera device 1 is provided above the transmission mechanism 3. It also includes a hand mold mechanism 4 for rotating transmission through the transmission mechanism 3. A limited tooling 7 is installed on one side of the transmission mechanism 3.
- the hand mold mechanism 4 includes a hand mold 41 and a hand mold base 42.
- the hand mold base 42 is provided with a rolling part 421 and a limiting part 422.
- the rolling part 421 is engaged with the transmission mechanism 3.
- the transmission mechanism 3 drives the rolling part 421 and the hand mold 41 to rotate forward.
- the limiting tool 7 includes curved portions 71 located at both ends and a flat portion 72 located in the middle.
- the limiting portion 422 of the hand mold base 42 passes through the curved portion 71 of the limiting tool 7.
- the flat part 72 engages with the limiting part 422 to limit the rotation of the hand mold 41 .
- the limiting tool 7 is provided with a head end and a terminal end in the transmission direction of the transmission mechanism 3.
- the head end and terminal end are curved structures, and the middle part is a flat structure.
- the photographing device 1 includes a camera 11, a light shield 12, and a fill light 13.
- the production line is provided with a production line beam 5.
- the camera 11, the light shield 12, and the fill light 13 are installed on the production line beam 5.
- a background base 6 is provided below the transmission mechanism 3 corresponding to the position of the camera 11 , and a background plate 61 is provided on the background base 6 .
- the limiting tool 7 is provided with a plurality of supporting parts 73 for fixing the limiting tool 7 .
- the support part is provided with threaded holes for fixing the limiting tool 7 through bolts.
- the limiting tooling is detachably connected to the transmission mechanism or production line rack of the production line, and its position can be adjusted according to on-site needs.
- a production line is provided with a production line frame 2 , and the limiting tool 7 is fixed on the production line frame 2 through the support part 73 , or the limiting tool 7 is directly fixed on the transmission mechanism 3 .
- the end of the limiting tool 7 is arranged below the camera 11 .
- the planar structure of the hand mold base limiting portion is parallel to the palm plane of the hand mold 41 .
- the palm plane of the hand mold is in a horizontal state and is transmitted forward.
- the limiting tool releases the limiting function and the hand mold mechanism begins to rotate.
- the first perspective image and the third perspective image are respectively the front image Ai and the reverse image Ci of the product; the second perspective image and the fourth perspective image are respectively the left side of the product.
- Image Bi right side image Di.
- a trigger image collection is performed every time t.
- two triggers are performed.
- the first trigger collects the image Ai of product Pn and the image Ci of product P(n-1).
- the second trigger Collect the image Bi of product Pn and the image Di of product P(n-1);
- the images from its four viewing angles can be collected after two cycles, namely Ai, Bi, C(i+1), and D(i+1).
- This embodiment takes a glove production line as an example for explanation.
- the circumferential diameter of the hand mold base is 11 cm
- the circumference L 34.54 cm
- the quarter circumference is 8.635 cm.
- the production line speed is 280 milliseconds per cycle
- the distance between hand molds is 20 centimeters
- v 0.714 centimeters/ms.
- Each product image is compared with the standard image through image recognition; set the step triggering time interval, and continuously trigger shooting at step time intervals. The moment when the collected product image matches the standard image is determined as the initial acquisition time t0.
- the first trigger collects the image A1 of product P2 and the image C1 of product P1.
- the second trigger collects the image B1 of product P2 and the image D1 of product P1;
- next period T2 two triggers are also performed.
- image A2 of product P2 and image C2 of product P2 are collected.
- image B2 of product P2 and image D2 of product P2 are collected.
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Abstract
本发明涉及本发明涉及生产线图像采集技术领域,提供一种流水作业生产线旋转拍照方法,其包括按固定触发时序连续采集经过生产线固定段的产品的图像;所述产品经过生产线固定段时,发生水平状态向旋转状态的切换;所述按固定触发时序采集,包括每个拍摄周期Ti内以时间间隔t触发两次拍摄动作,触发第一次拍摄时,采集产品Pn的第一视角图像与相邻产品P(n-1)的第三视角图像;触发第二次拍摄时,采集产品Pn的第二视角图像与相邻产品P(n-1)的第四视角图像。本发明设计了独特的旋转拍照方法,只需采用一套拍摄装置,通过对触发时序的控制,即可获取同一产品多个角度不同位置的图像,大大节省了图像采集成本,提高了效率。
Description
本发明涉及生产线图像采集技术领域,具体涉及一种流水作业生产线旋转拍照方法。
在生产线中,如何自动实现合格品与次品的筛选与分离一直是一项技术难题,传统的生产线由工人线上进行质检,产线生产的产品质量会由于工人的认知水平、熟练程度、情绪、反应速度等等因素影响。因此在产品的流水作业生产线加工过程中,需要对产品进行自动化视觉检测工作,进而对手套进行质检。但是,现有技术中在对产品进行图像采集的过程中,往往只能采集到产品局部视角的图像,无法准确完成对产品品质的判断。
例如,一次性丁腈手套作为医疗防护用品,对于质量的要求十分苛刻。在一次性丁腈手套生产过程中,由于生产工艺及生产环境的问题,手套在产线上运行过程中会产生多种缺陷,如:碰伤、断指、露白、蚊虫等等问题,而且缺陷产生位置十分随机,卷边、手掌、手指等等位置均会产生。
为了完成对手套多角度的图像采集,往往需要在生产线上配置多套图像采集设备,通过对手模进行旋转,采用多台图像采集装置对处于不同旋转角度的手模进行拍照,通过对照片进行识别处理来剔除不合格品。
在传统的图像采集机构中,不仅需要设备数量多,控制过程繁琐,而且采集视角受限,不合格品漏检率居高不下。
发明内容
为解决背景技术中存在的问题,本发明提供一种流水作业生产线旋转拍照方法,其包括如下的步骤:
按固定触发时序连续采集经过生产线固定段的产品的图像;
所述产品经过生产线固定段时,发生水平状态向旋转状态的切换;
所述经过生产线固定段的产品,相邻产品之间具有间距D;
所述按固定触发时序采集,包括设置拍摄周期Ti(i=1,2……),每个拍摄周期Ti内以时间间隔t触发两次拍摄动作,其中:
触发第一次拍摄时,采集产品Pn(n=2,3……)的第一视角图像与相邻产品P(n-1)的第三视角图像;
触发第二次拍摄时,采集产品Pn的第二视角图像与相邻产品P(n-1)的第四视角图像。
本方法中包含确定初始采集时刻的过程,即首次获取合格图像的时刻的确定过程,具体如下:
S1:启动拍摄调试模式:在随机时刻触发拍摄设备,采集经过生产线固定段的相邻两个产品的图像;
S2:以第三视角图像的标准图像作为标准图像,将采集到的第二个产品图像与标准图像经图像识别对比;
S3:设置步进触发时间间隔,按以步进时间间隔连续触发拍摄,至采集到的产品图像与标准图像吻合时刻即确定为初始采集时刻t0。
进一步,在周期Ti内,所述第一视角图像、第三视角图像分别为产品正面图像Ai、反面图像Ci;所述第二视角图像、第四视角图像分别为产品左侧面图像Bi、右侧面图像Di。
在上述方法中,所述生产线上设置有传送机构;传送机构侧方安装有限位工装;所述产品为通过传送机构传送的手模机构;
所述手模机构包括手模与手模底座,所述手模底座设置有滚动部与限位部,所述滚动部与传送机构啮合,由传送机构带动滚动部及手模旋转前进;所述滚动部为圆形,圆周长为L;
所述限位工装包括设置于两端的曲面部与设置于中间的平面部,手模底座的限位部经限位工装的曲面部运行至平面部时,平面部与限位部啮合,限制手模旋转;所述限位工装在传
送机构的传送方向上设置有首端与末端,其首端与末端为曲面结构,中部为平面结构;所述平面结构平行于手模的手掌平面。
进一步,按固定触发时序连续采集经过生产线固定段的产品的图像时,限位工装的末端设置于所述生产线固定段内,生产线固定段内上方设置有拍照装置,所述拍照装置包括摄像头、遮光板、补光灯,生产线上设置有产线架梁,所述摄像头、遮光板、补光灯安装于产线架梁上。
进一步,所述传送机构下方对应摄像头的位置设置有背景底座,所述背景底座上设置有背景板。
进一步,所述限位工装设置于有若干支撑部,用于将限位工装固定。
优选地,所述支撑部设置有螺纹孔,用于通过螺栓将限位工装固定,且生产线上设置有产线架板,所述限位工装通过支撑部固定于产线架板或传送机构上。
上述方法还包括确定触发时间间隔t的过程,具体如下:
步骤一、于初始采集时刻t0采集产品P2的正面图像A1、P1的反面图像C1;
步骤二、由于经过时间间隔t,要满足采集P2的左侧图像B1、P1的右侧图像D1的要求,从P1的反面图像C1到P1的右侧图像D1,旋转角度为90°,行进距离为L/4,设定手模机构在生产线的行进速度为v,则根据公式t=L/4v求得触发时间间隔t。
本发明所达到的有益效果为:
第一、本发明设计了独特的旋转拍照方法,只需采用一台拍摄装置,通过对触发时序的控制,在两个拍照周期结束后,即可获取同一产品四个角度不同位置的图像,大大节省了图像采集成本,提高了效率;
第二、本发明在手模机构的图像采集方面具有明显优势,通过在手模机构传送机构一侧设置了限位工装,手模机构经过限位工装时,手模处于水平状态并向前传送,当手模机构到达限位工装末端的曲面部时,限位工装解除限位作用,手模机构开始旋转。在限位工
装末端的上方设置拍照装置,可以较为准确的找到基准角度,并以此设计触发拍照时序,只通过一套拍照装置便可采集到满足要求的手模不同旋转角度的手模图像;
第三、本发明设计的拍照方法,只需一套拍摄装置,通过对触发时序的控制可满足不同生产线、不同种类的产品多角度的图像采集要求。
图1是本发明的流水作业生产线旋转拍照方法示意图;
图2是本发明的生产线结构示意图;
图3是图2中局部结构放大示意图;
图4是限位工装的右视角度结构示意图;
图5是限位工装的左视角度结构示意图;
图6是手模机构的结构示意图;
图7是手模底座的结构示意图;
图8是实施例中的旋转拍照方法示意图。
图中标号:
1、拍照装置;11、摄像头;12、遮光板;13、补光灯;2、产线架板;3、传送机构;
4、手模机构;41、手模;42、手模底座;421、滚动部;422、限位部;423、连接部;5、产线架梁;6、背景底座;61、背景板;7、限位工装;71、曲面部;72、平面部;73、支撑部。
1、拍照装置;11、摄像头;12、遮光板;13、补光灯;2、产线架板;3、传送机构;
4、手模机构;41、手模;42、手模底座;421、滚动部;422、限位部;423、连接部;5、产线架梁;6、背景底座;61、背景板;7、限位工装;71、曲面部;72、平面部;73、支撑部。
为便于本领域的技术人员理解本发明,下面结合附图说明本发明的具体实施方式。
实施例1,
一种流水作业生产线旋转拍照方法,其包括如下的步骤:按固定触发时序连续采集经过
生产线固定段的产品的图像;所述产品经过生产线固定段时,发生水平状态向旋转状态的切换;所述经过生产线固定段的产品,相邻产品之间具有间距D;所述按固定触发时序采集,包括设置拍摄周期Ti(i=1,2……),每个拍摄周期Ti内以时间间隔t触发两次拍摄动作,其中:触发第一次拍摄时,采集产品Pn(n=2,3……)的第一视角图像与相邻产品P(n-1)的第三视角图像;触发第二次拍摄时,采集产品Pn的第二视角图像与相邻产品P(n-1)的第四视角图像。
本方法中包含确定初始采集时刻的过程,即首次获取合格图像的时刻的确定过程,具体如下:S1:启动拍摄调试模式:在随机时刻触发拍摄设备,采集经过生产线固定段的相邻两个产品的图像;S2:以第三视角图像的标准图像作为标准图像,将采集到的第二个产品图像与标准图像经图像识别对比;S3:设置步进触发时间间隔,按以步进时间间隔连续触发拍摄,至采集到的产品图像与标准图像吻合时刻即确定为初始采集时刻t0。
实施例2,
参照图2-3,本实施例说明的是实施例1涉及的装置,其包括设置于生产线上的传送机构3,传送机构3上方设置有拍照装置1。还包括通过传送机构3进行旋转传送的手模机构4。传送机构3一侧安装有限位工装7。
参照图6、7,所述手模机构4包括手模41与手模底座42,所述手模底座42设置有滚动部421与限位部422,所述滚动部421与传送机构3啮合,由传送机构3带动滚动部421及手模41旋转前进。
从图4-5中看出,所述限位工装7包括设置于两端的曲面部71与设置于中间的平面部72,手模底座42的限位部422经限位工装7的曲面部71运行至平面部72时,平面部72与限位部422啮合,限制手模41旋转。所述限位工装7在传送机构3的传送方向上设置有首端与末端,其首端与末端为曲面结构,中部为平面结构。
所述拍照装置1包括摄像头11、遮光板12、补光灯13,生产线上设置有产线架梁5,
所述摄像头11、遮光板12、补光灯13安装于产线架梁5上。所述传送机构3下方对应摄像头11的位置设置有背景底座6,所述背景底座6上设置有背景板61。
所述限位工装7设置于有若干支撑部73,用于将限位工装7固定。所述支撑部设置有螺纹孔,用于通过螺栓将限位工装7固定。限位工装以可拆卸的方式连接于产线的传送机构或产线架板上,其位置可根据现场需求调整。例如,生产线上设置有产线架板2,所述限位工装7通过支撑部73固定于产线架板2上,或直接将限位工装固定于传送机构3上。
限位工装7的末端设置于摄像头11的下方。手模底座限位部的平面结构平行于手模41的手掌平面。手模机构经过限位工装时,手模的手掌平面处于水平状态并向前传送,当手模机构到达限位工装末端的曲面部时,限位工装解除限位作用,手模机构开始旋转。在限位工装末端的上方设置拍照装置,可以较为准确的找到基准角度,并以此设计拍照时序,只通过一套拍照装置便可采集到满足要求的手模不同旋转角度的手模图像,节省了拍照成本,提高了生产效率。
实施例3,
在本实施例中,在周期Ti内,所述第一视角图像、第三视角图像分别为产品正面图像Ai、反面图像Ci;所述第二视角图像、第四视角图像分别为产品左侧面图像Bi、右侧面图像Di。
本实施例中,确定触发时间间隔t的具体过程如下:步骤一、于初始采集时刻t0采集产品P2的正面图像A1、P1的反面图像C1;步骤二、由于经过时间间隔t,要满足采集P2的左侧图像B1、P1的右侧图像D1的要求,从P1的反面图像C1到P1的右侧图像D1,旋转角度为90°,行进距离为L/4,设定手模机构在生产线的行进速度为v,则根据公式t=L/4v求得触发时间间隔t。
随后每隔时间t进行一次触发图像采集,一个周期Ti内,进行两次触发,第一次触发,采集到产品Pn的图像Ai和产品P(n-1)的图像Ci,第二次触发,采集到产品Pn的图像Bi
和产品P(n-1)的图像Di;
在下一个周期T(i+1)内,也进行两次触发,第一次触发,采集到产品P(n+1)的图像A(i+1)和产品Pn的图像C(i+1),第二次触发,采集到产品P(i+1)的图像B(i+1)和产品Pn的图像D(i+1);
由此,对于产品Pn,其四个视角的图像经过两个周期,即可采集完成,分别为Ai、Bi、C(i+1)、D(i+1)。
实施例4,
本实施例以手套流水生产线为例,进行说明。本实施中,参照图8,手模机构间隔D=20厘米,手模底座圆周直径11厘米,周长L=34.54厘米,四分之一周长为8.635厘米。生产线车速280毫秒一个周期,手模间距为20厘米,则v=0.714厘米/毫秒。
首先进行t0时刻确认,启动拍摄调试模式,在随机时刻触发拍摄设备,采集经过生产线固定段的相邻两个产品的图像;以第三视角图像的标准图像作为标准图像,将采集到的第二个产品图像与标准图像经图像识别对比;设置步进触发时间间隔,按以步进时间间隔连续触发拍摄,至采集到的产品图像与标准图像吻合时刻即确定为初始采集时刻t0。
触发间隔时间t=L/4v,t=61.679毫秒。即第一次拍照后延迟61.679毫秒拍摄第二张图像。
第一个周期T1,进行两次触发,第一次触发,采集到产品P2的图像A1和产品P1的图像C1,第二次触发,采集到产品P2的图像B1和产品P1的图像D1;
在下一个周期T2内,也进行两次触发,第一次触发,采集到产品P2的图像A2和产品P2的图像C2,第二次触发,采集到产品P2的图像B2和产品P2的图像D2。
经过两个周期,产品P2的四个视角的图像A1、B1、C2、D2采集完成。
以上的本发明实施方式,并不构成对本发明保护范围的限定。任何在本发明的精神和原则之内所作的修改、等同替换和改进等,均应包含在本发明的权利要求保护范围之内。
Claims (10)
- 一种流水作业生产线旋转拍照方法,其特征在于,其包括如下的步骤:按固定触发时序连续采集经过生产线固定段的产品的图像;所述产品经过生产线固定段时,发生水平状态向旋转状态的切换;所述经过生产线固定段的产品,相邻产品之间具有间距D;所述按固定触发时序采集,包括设置拍摄周期Ti(i=1,2……),每个拍摄周期Ti内以时间间隔t触发两次拍摄动作,其中:触发第一次拍摄时,采集产品Pn(n=2,3……)的第一视角图像与相邻产品P(n-1)的第三视角图像;触发第二次拍摄时,采集产品Pn的第二视角图像与相邻产品P(n-1)的第四视角图像。
- 根据权利要求1所述的一种流水作业生产线旋转拍照方法,其特征在于:其包括确定初始采集时刻的过程,即首次获取合格图像的时刻的确定过程,具体如下:S1:启动拍摄调试模式:在随机时刻触发拍摄设备,采集经过生产线固定段的相邻两个产品的图像;S2:以第三视角图像的标准图像作为标准图像,将采集到的第二个产品图像与标准图像经图像识别对比;S3:设置步进触发时间间隔,按以步进时间间隔连续触发拍摄,至采集到的产品图像与标准图像吻合时刻即确定为初始采集时刻t0。
- 根据权利要求2所述的一种流水作业生产线旋转拍照方法,其特征在于:在周期Ti内,所述第一视角图像、第三视角图像分别为产品正面图像Ai、反面图像Ci;所述第二视角图像、第四视角图像分别为产品左侧面图像Bi、右侧面图像Di。
- 根据权利要求3所述的一种流水作业生产线旋转拍照方法,其特征在于:所述生产线上设置有传送机构;传送机构侧方安装有限位工装;所述产品为通过传送机构传送的手模机构;所述手模机构包括手模与手模底座,所述手模底座设置有滚动部与限位部,所述滚动部与传送机构啮合,由传送机构带动滚动部及手模旋转前进;所述滚动部为圆形,圆周长为L;所述限位工装包括设置于两端的曲面部与设置于中间的平面部,手模底座的限位部经限位工装的曲面部运行至平面部时,平面部与限位部啮合,限制手模旋转;所述限位工装在传送机构的传送方向上设置有首端与末端,其首端与末端为曲面结构,中部为平面结构;所述平面结构平行于手模的手掌平面。
- 根据权利要求4所述的一种流水作业生产线旋转拍照方法,其特征在于:按固定触发时序连续采集经过生产线固定段的产品的图像时,限位工装的末端设置于所述生产线固定段内,生产线固定段内上方设置有拍照装置,所述拍照装置包括摄像头、遮光板、补光灯,生产线上设置有产线架梁,所述摄像头、遮光板、补光灯安装于产线架梁上。
- 根据权利要求5所述的一种流水作业生产线旋转拍照方法,其特征在于:所述传送机构下方对应摄像头的位置设置有背景底座,所述背景底座上设置有背景板。
- 根据权利要求5所述的一种流水作业生产线旋转拍照方法,其特征在于:所述限位工装设置于有若干支撑部,用于将限位工装固定。
- 根据权利要求7所述的一种流水作业生产线旋转拍照方法,其特征在于:所述支撑部设置有螺纹孔,用于通过螺栓将限位工装固定。
- 根据权利要求7所述的一种流水作业生产线旋转拍照方法,其特征在于:生产线上设置有产线架板,所述限位工装通过支撑部固定于产线架板或传送机构上。
- 根据权利要求4所述的一种流水作业生产线旋转拍照方法,其特征在于:其包括确定触发时间间隔t的过程,具体如下:步骤一、于初始采集时刻t0采集产品P2的正面图像A1、P1的反面图像C1;步骤二、由于经过时间间隔t,要满足采集P2的左侧图像B1、P1的右侧图像D1的要求, 从P1的反面图像C1到P1的右侧图像D1,旋转角度为90°,行进距离为L/4,设定手模机构在生产线的行进速度为v,则根据公式t=L/4v求得触发时间间隔t。
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