CN110923866B - System for searching backward spindle of spinning frame - Google Patents
System for searching backward spindle of spinning frame Download PDFInfo
- Publication number
- CN110923866B CN110923866B CN201911318059.4A CN201911318059A CN110923866B CN 110923866 B CN110923866 B CN 110923866B CN 201911318059 A CN201911318059 A CN 201911318059A CN 110923866 B CN110923866 B CN 110923866B
- Authority
- CN
- China
- Prior art keywords
- bobbin
- yarn
- spindle
- image acquisition
- camera
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
The invention discloses a backward spindle searching system of a spinning frame, which utilizes an image acquisition system I to acquire a bobbin on the spinning frame and a background image thereof, then identifies the coded information of the bobbin, and simultaneously records the spindle position ordinal number corresponding to the bobbin; utilizing a second image acquisition system to acquire images of each bobbin in a yarn library of the automatic winder, recording the moment of acquiring the images, sequencing the positions of each bobbin in the images according to the working sequence of winding yarns, and identifying the coding information of the bobbins; and (3) carrying out online yarn quality detection by combining an online yarn quality monitoring system of the automatic winder, and searching the coding information of a defective yarn bobbin according to the working time of the yarn winding spindle and the time of acquiring the image by the second image acquisition system when the defective yarn is detected, and further searching the spindle position ordinal number corresponding to the bobbin. The invention realizes the automatic searching of the backward spindle of the spinning frame, and has high searching efficiency and reliability.
Description
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a backward spindle searching system of a spinning frame.
Background
In the spinning working flow, the last two processes are a spinning process and a winding process. The spun yarn is wound on spun yarn bobbins, qualified yarn is wound on a cone bobbin after the quality of the yarn is detected in a winding process, the cone bobbin becomes a final product, if the quality of the yarn on a certain bobbin is detected to be not satisfactory through the winding process, the corresponding bobbin is automatically removed by an automatic winder, however, the bobbin removal is far from enough, and a spindle for generating the spun yarn on the bobbin needs to be found out. However, at present, no special backward spindle searching device exists, and the spindle searching can only depend on manual spindle-by-spindle searching, so that the searching efficiency is low.
Disclosure of Invention
The invention aims to provide a backward spindle searching system of a spinning frame so as to realize automatic backward spindle searching of the spinning frame.
In order to achieve the purpose, the invention adopts the following technical scheme:
spinning frame falls behind spindle seeking system includes:
the first image acquisition system is configured for acquiring coded information of bobbins and spindle position information on a spinning frame and uploading the acquired coded information of the bobbins and the spindle position information to a spinning database;
the second image acquisition system is configured for acquiring images of yarn tubes in a yarn library of the automatic winder, recording the time of acquiring the images, carrying out position sequencing on each yarn tube in the images according to a yarn winding working sequence and identifying the coding information of each yarn tube;
the second image acquisition system uploads the image acquisition time, bobbin position sequencing and coding information to a spinning database;
an automatic winder yarn quality on-line monitoring system configured for monitoring yarn quality:
when the quality of the yarn is detected to be unqualified, the defective yarn bobbins are automatically removed, and the coding information of the defective yarn bobbins is searched from a spinning database by combining the working time of the yarn winding spindle and the image acquisition time of the second image acquisition system;
after the bobbin coding information is obtained, spindle position information is further found from a spinning database, and the backward spindle position is determined;
the code of the bobbin is marked on the top of the bobbin and comprises a bar code or a two-dimensional code.
Preferably, the first image acquisition system comprises:
a first distance measuring sensor configured to sense the spindle;
the camera is configured to start and shoot the yarn tube on the spindle and the background of the yarn tube when the first distance measuring sensor senses the spindle;
a counter configured to count once when the first distance measuring sensor senses the spindle;
the first processor is configured to perform frame-by-frame comparison on an image set shot by the camera, screen out images with high definition and identify the coding information at the top of the bobbin in the images;
the first storage is configured to upload the spindle position ordinal numbers obtained by the bobbin codes and the counter to a spinning database;
the first distance measuring sensor, the camera, the counter, the first processor and the first memory are all installed on the doffing trolley and move synchronously along a guide rail of the doffing trolley along with the doffing trolley.
Preferably, the second image acquisition system comprises:
a second ranging sensor configured to sense each bobbin in the yarn magazine of the automatic winder;
the camera set is configured to start corresponding cameras in the camera set and shoot the bobbins and bobbin backgrounds when the second distance measuring sensor senses a certain bobbin;
the second processor is configured to perform frame division comparison on image sets shot by all cameras in the camera set, screen out images with high definition, sort all yarn tubes in the images according to a yarn winding working sequence and identify the coding information of the yarn tubes;
the second memory is configured to upload image acquisition time, bobbin sequencing and coding information of the camera to a spinning database;
the second distance measuring sensor, the camera set, the second processor and the second memory are all installed on the winding trolley and follow the winding trolley to move synchronously along a guide rail of the winding trolley.
The invention has the following advantages:
as mentioned above, the invention relates to a backward spindle searching system of a spinning frame, wherein, the first image acquisition system can be used for carrying out image acquisition on the yarn tube and the background thereof on the spinning frame, then the image processing technology is used for identifying the coded information of the yarn tube, and simultaneously the spindle position ordinal number corresponding to the yarn tube is recorded; the second image acquisition system can be used for acquiring images of each bobbin in a yarn library of the automatic winder, recording the moment of acquiring the images, sequencing the positions of each bobbin in the images according to the working sequence of winding, and identifying the coding information of the bobbins by using an image processing technology; and (3) carrying out online yarn quality detection by combining with an online yarn quality monitoring system of an automatic winder, searching the coding information of a defective yarn bobbin according to the working time of a yarn winding spindle and the time of acquiring an image by the second image acquisition system when the defective yarn is detected, further searching the spindle position ordinal number corresponding to the bobbin, and determining the position of the backward spindle. The invention realizes the automatic searching of the backward spindle of the spinning frame, and has high searching efficiency and high reliability.
Drawings
Fig. 1 is a structural block diagram of a backward spindle searching system of a spinning frame in the embodiment of the invention.
FIG. 2 is a schematic structural diagram of an image capture system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an image acquisition system ii in an embodiment of the present invention.
Fig. 4 is a schematic arrangement diagram of each camera in the camera group in the embodiment of the present invention.
The system comprises a 1-first image acquisition system, a 2-second image acquisition system, a 3-automatic winder yarn quality online monitoring system, a 4-spinning frame, a 5-bobbin, a 6-spindle, a 7-first distance measurement sensor, an 8-camera, a 9-counter and a 10-first processor, wherein the first image acquisition system is connected with the first processor through a first cable;
11-a first storage device, 12-a code, 13-a doffing trolley, 14-a doffing trolley guide rail, 15-an automatic winder, 16-a yarn storage device, 17-a second distance measuring sensor, 18-a camera set, 19-a second processor, 20-a second storage device and 21-a winding trolley.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1, the backward spindle searching system of the spinning frame comprises a first image acquisition system 1, a second image acquisition system 2 and an automatic winder yarn quality online monitoring system 3.
The first image acquisition system 1 is used for acquiring the coded information of the bobbins 5 and the position information of the spindles 6 on the spinning frame 4 and uploading the acquired coded information of the bobbins 5 and the position information of the spindles 6 to a spinning database.
Fig. 2 shows a preferred structure of the first image acquisition system 1, which comprises components of a first distance measurement sensor 7, a camera 8, a counter 9, a first processor 10, a first memory 11 and the like. Wherein:
the first distance measuring sensor 7 can adopt a photoelectric sensor or a proximity sensor and the like and is used for sensing the spindle 6.
When the first distance measuring sensor 7 senses the spindle 6, the camera 8 is started, the bobbin 5, the bobbin code, the bobbin background and the like on the spindle 6 are shot, and the shooting time is set through a program.
The focal length of the camera 8 is adjusted before the acquisition of the image acquisition system number one 1 starts.
The counter 9 is used for counting once when the first distance measuring sensor 7 senses the spindle 6. The counter 9 accumulates the count, can record the position ordinal number of every spindle 6 on the spinning frame, makes things convenient for the laggard spindle of later stage to seek.
The first processor 10 is used for performing frame-by-frame comparison on the image set shot by the camera 8, screening out images with high definition, and identifying the coded information at the top of the bobbin in the images.
The technology is mature, wherein the shot images are compared in a frame-by-frame mode, and then the images with high definition are screened out.
The process of identifying the coded information at the top of the bobbin by using the image processing technology is as follows:
screening out an interested Region (ROI for short), namely a bobbin top image, from an acquired image containing a bobbin, a code on the bobbin and a bobbin background;
secondly, screening out an interested region, namely a coded image, from the top image of the bobbin;
identifying the coding information in the coding image so as to obtain the corresponding coding data on the yarn tube.
It should be noted that the code 12 in the present embodiment is directly indicated on the top of each bobbin 5, and the code 12 may be indicated on the top of the bobbin 5 by means of engraving or spraying, for example.
The code is, for example, a common two-dimensional code, a bar code, or the like, but other standard codes may be used.
In addition, the coding system may also be constructed by self-coding, which is not limited herein.
In the embodiment, the codes 12 such as the two-dimensional codes are engraved or sprayed on the top of the bobbin 5 by means of engraving or spraying codes. The top position is not wound with yarn, and therefore can be photographed by a camera or the like.
In addition, in order to ensure that the coded information on each bobbin 5 can be accurately and reliably shot by equipment such as a camera, the present embodiment also has an original design that a plurality of codes 2 are marked in a certain circumferential direction at the top of the bobbin.
The number of the codes 2 is three, four, five or even more, so that when the bobbin 5 is on the spindle, no matter which position of the bobbin 5 the camera is aligned with, one code can be obtained, and the reliability is obviously improved.
And the first memory 11 uploads the bobbin coding information and the spindle position ordinal number obtained by the counter to a spinning database.
The first distance measuring sensor 7, the camera 8, the counter 9, the first processor 10 and the first memory 11 are all arranged on the doffing trolley 13 and move synchronously along a doffing trolley guide rail 14 along with the doffing trolley 13.
The first image acquisition system 1 works as follows:
the doffing trolley 13 moves from the head position of the spinning frame 4 to the direction pointing to the tail of the frame, and the counter 9 starts counting;
every time the first distance measuring sensor 7 senses one spindle 6, the counter 9 counts once (representing the ordinal number of the spindle position); simultaneously, the camera 8 is activated and takes a multiframe image containing the bobbin, bobbin code and background.
The image information captured by the camera 8 is fed to the processor number one 10.
The first processor 10 firstly performs frame comparison on the shot image set to screen out images with high definition, and then identifies the coding information in each image by using an image processing technology to obtain the coding data.
Finally, the first memory 11 uploads the coding information of the bobbin 5 and the position ordinal number of the spindle 6 to a spinning database, so as to establish the relation between the bobbin 5 and the spindle position information, and be convenient for searching the laggard spindle on the spinning machine.
When there are a plurality of spinning frames 4, in order to distinguish different spinning frames 4, the present embodiment marks a code at the head position of each spinning frame 4, and the code of the spinning frame 4 is photographed and recognized before the video camera collects the bobbin code information.
And the second image acquisition system 2 is used for acquiring images of the bobbins in the yarn storage 16 of the automatic winder 15, recording the time of acquiring the images, sequencing the positions of the bobbins in the images according to the yarn winding working sequence and identifying the coding information of the bobbins 5.
And the second image acquisition system 2 uploads the image acquisition time, the bobbin position sequencing and the coding information to a spinning database.
As shown in fig. 3, the second image capturing system includes a second distance measuring sensor 17, a camera set 18, a second processor 19, a second memory 20, and the like.
The second distance measuring sensor 17 is used to sense each bobbin 5 in the yarn magazine 16 of the automatic winder.
The camera unit 18 is provided in this embodiment in order to correspond the different cameras to the respective positions of the bobbins in the yarn magazine 16, respectively, depending on the relative positions of the respective bobbin positions in the yarn magazine 16 and the different cameras in the camera unit.
By respectively adjusting the focal length of each camera, each camera can correspondingly shoot one or two bobbin positions, and thus the shooting precision is improved. In addition, the use of the camera set obviously replaces an industrial camera, and the cost is greatly reduced.
As shown in fig. 4, the present embodiment provides two different camera arrangements in the camera group.
Fig. 4(a) shows a 3 x 3 array of cameras, each camera in the array corresponding to a bobbin position in the yarn store 16, and each camera is activated to capture when a bobbin 5 is sensed by the second range sensor 17.
Fig. 4(b) shows a 2 × 2 camera array, where each camera in the array is corresponding to two bobbin positions in the yarn storage, for example, camera one is shooting position 1 and position 2 in the yarn storage, camera two is shooting position 3 and position 4 in the yarn storage, and so on.
By establishing the corresponding relation between each camera in the camera set and each yarn tube 5 in the yarn warehouse 16, a clear image can be conveniently obtained.
When the second distance measuring sensor 17 senses the bobbin 5 at a certain bobbin position, the camera corresponding to the bobbin position in the camera set 18 is started, and the bobbin (with the coded information) and the bobbin background are shot.
The second processor 19 is used for performing frame-by-frame comparison on the image sets shot by the cameras in the camera group 18 to screen out images with high definition, and the technology is mature and is not described herein again.
And obtaining clear bobbin images after screening, and sequencing the bobbins 5 in the images according to the winding working sequence.
Wherein, the general process of sequencing is as follows:
firstly, presetting an image, arranging bobbins in the preset image according to a winding working sequence, then comparing the bobbin image with the preset image, and sequencing the positions of the bobbins according to the preset sequence.
And identifying the code information of each bobbin in the bobbin image by using an image identification technology.
And a second memory 20 for uploading the image acquisition time, bobbin sequencing and coding information of the camera to a spinning database.
The second distance measuring sensor 17, the camera set 18, the second processor 19 and the second memory 2 are all mounted on the winding trolley 21 and move synchronously along the winding trolley guide rail 22 along with the winding trolley.
In the moving process of the winding trolley 21, the second image acquisition system 2 finishes corresponding image acquisition and processing work.
The working process of the second image acquisition system 2 is as follows:
in the running process of the winding trolley 21, the second distance measuring sensor 17 senses the yarn tubes in the yarn storage 16;
when the bobbin 5 is sensed, the corresponding cameras in the camera set 18 are started to acquire images, the acquired images comprise information of the bobbin, bobbin codes, background and the like, and the time when each camera shoots the images is recorded.
The acquired image information is transmitted to the processor number two 19.
The second processor 19 first performs frame-wise comparison on the image sets shot by the cameras to screen out images with high definition.
And obtaining clear bobbin images after screening, and sequencing the bobbins 5 in the images according to the winding working sequence.
The code information of each bobbin 5 in the bobbin image is identified by using an image identification technology.
Based on the work order condition of each bobbin 5, the shooting time of the bobbin 5 on the last preparation station in the yarn bank 16 before winding can be obtained in combination with the time when each camera shoots the image.
The second memory 20 uploads the image acquisition time of the camera, the yarn tube sequencing and the coding information to a spinning database.
In addition, in order to distinguish different yarn banks 16, the codes are coded on the different yarn banks, and the coded information of the yarn banks 16 is simultaneously acquired in the image acquisition process, so that the numbers of the yarn banks 16 are acquired, and the different yarn banks 16 correspond to different winding spindles.
And the automatic winder yarn quality on-line monitoring system 3 is used for monitoring the yarn quality.
And when the quality of the yarn is detected to be unqualified, the defective yarn tubes are automatically removed. And the coding information of the defective yarn bobbins is searched from the spinning database by combining the working time of the winding spindles and the image acquisition time of the camera.
And after the bobbin coding information is obtained, spindle position information is further found from a spinning database, and the backward spindle position is determined.
Compared with a spindle-by-spindle searching mode, the system has high searching efficiency and high automatic tracking reliability.
In addition, the embodiment of the invention also compares the differences of the spinning machine backward spindle searching system based on camera image acquisition and the RFID system in the aspect of the spinning machine backward spindle searching, and the following conclusion is obtained through comparison:
the RFID label is not easy to fix, and is easy to fall off and poor in reliability if directly adhered to the surface of a bobbin, and the structure of the bobbin can be changed if the label is embedded into the bobbin, so that the manufacturing cost of the bobbin is too high;
in addition, no matter which of the above RFID tag fixing methods is adopted, the problem of dynamic balance of the bobbin is caused during the high-speed operation of the bobbin, thereby affecting the quality of the yarn wound on the bobbin.
2. The codes (such as two-dimensional codes, bar codes and the like) adopted in the backward spindle searching system of the spinning frame based on the image acquisition of the camera are directly marked on the yarn tubes, so that the manufacturing cost is low.
And the codes can not fall off in the high-speed running process of the yarn tube, and the yarn bobbin has the advantages of high reliability and the like. In addition, the code marked on the bobbin 5 does not cause the dynamic balance problem due to the high-speed running of the bobbin 5 on the spinning machine.
Compared with the prior art, the backward spindle searching system of the spinning frame based on the camera image acquisition has higher reliability in the backward spindle searching process relative to the RFID system, so that the backward spindle searching system has stronger practicability.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. Spinning frame falls behind spindle seeking system, its characterized in that includes:
the first image acquisition system is configured for acquiring coded information of bobbins and spindle position information on a spinning frame and uploading the acquired coded information of the bobbins and the spindle position information to a spinning database;
the second image acquisition system is configured for acquiring images of bobbins in a yarn library of the automatic winder, recording the time of acquiring the images, carrying out position sequencing on each bobbin in the images according to a yarn winding working sequence and identifying the coding information of the bobbins;
the second image acquisition system uploads the image acquisition time, bobbin position sequencing and coding information to a spinning database;
an automatic winder yarn quality on-line monitoring system configured to monitor yarn quality;
when the quality of the yarn is detected to be unqualified, the defective yarn bobbins are automatically removed, and the coding information of the defective yarn bobbins is searched from a spinning database by combining the working time of the yarn winding spindle and the image acquisition time of the second image acquisition system;
after the bobbin coding information is obtained, spindle position information is further found from a spinning database, and the backward spindle position is determined;
the code of the bobbin is marked on the top of the bobbin and comprises a bar code or a two-dimensional code.
2. The backward spindle searching system of the spinning frame as claimed in claim 1,
the first image acquisition system comprises:
a first distance measuring sensor configured to sense the spindle;
the camera is configured to start and shoot the yarn tube on the spindle and the background of the yarn tube when the first distance measuring sensor senses the spindle;
a counter configured to count once when the first distance measuring sensor senses the spindle;
the first processor is configured to perform frame-by-frame comparison on an image set shot by the camera, screen out images with high definition and identify the coding information at the top of the bobbin in the images;
the first storage is configured to upload the spindle position ordinal numbers obtained by the bobbin codes and the counter to a spinning database;
the first distance measuring sensor, the camera, the counter, the first processor and the first memory are all installed on the doffing trolley and move synchronously along a guide rail of the doffing trolley along with the doffing trolley.
3. The backward spindle searching system of the spinning frame as claimed in claim 1,
the second image acquisition system comprises:
a second ranging sensor configured to sense each bobbin in the yarn magazine of the automatic winder;
the camera set is configured to start a corresponding camera in the camera set when the second distance measuring sensor senses a certain bobbin, and shoot the bobbin, the bobbin code and the bobbin background;
the second processor is configured to perform frame division comparison on image sets shot by all cameras in the camera set, screen out images with high definition, sort all yarn tubes in the images according to a yarn winding working sequence and identify the coding information of the yarn tubes;
the second memory is configured to upload image acquisition time, bobbin sequencing and coding information of the camera to a spinning database;
the second distance measuring sensor, the camera set, the second processor and the second memory are all installed on the winding trolley and follow the winding trolley to move synchronously along a guide rail of the winding trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318059.4A CN110923866B (en) | 2019-12-19 | 2019-12-19 | System for searching backward spindle of spinning frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318059.4A CN110923866B (en) | 2019-12-19 | 2019-12-19 | System for searching backward spindle of spinning frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110923866A CN110923866A (en) | 2020-03-27 |
| CN110923866B true CN110923866B (en) | 2020-10-13 |
Family
ID=69863242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911318059.4A Active CN110923866B (en) | 2019-12-19 | 2019-12-19 | System for searching backward spindle of spinning frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110923866B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880665A (en) * | 2021-01-26 | 2021-06-01 | 微山县微山湖微电子产业研究院有限公司 | Automatic yarn quality tracking method and system |
| CN114925986B (en) * | 2022-04-28 | 2024-04-05 | 无锡物联网创新中心有限公司 | Cop classifying and tracking method and related device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3816800A1 (en) * | 1988-05-17 | 1989-11-30 | Zinser Textilmaschinen Gmbh | METHOD AND DEVICE FOR ASSIGNING YARN AND / OR MACHINE-RELATED DATA TO SPOOL SLEEVES OF SPINNING MACHINES |
| CH686156A5 (en) * | 1992-12-18 | 1996-01-15 | Luwa Ag Zellweger | Bobbin identification |
| CN107904720A (en) * | 2017-12-13 | 2018-04-13 | 湖南文理学院 | A kind of comprehensive monitoring, retroactive method and system for ring spinning yarn qualities |
| CN108985417B (en) * | 2018-09-28 | 2024-02-20 | 郑州轻工业学院 | Bobbin tracing system and method based on RFID |
| CN109117907A (en) * | 2018-10-16 | 2019-01-01 | 江南大学 | A kind of fly frame spool retrospective device and method |
-
2019
- 2019-12-19 CN CN201911318059.4A patent/CN110923866B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110923866A (en) | 2020-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110923866B (en) | System for searching backward spindle of spinning frame | |
| CN100563418C (en) | Have picking up and place machine of improved component pick detection | |
| CN107597606A (en) | The video traceability system and method for automatic sorting courier packages | |
| CN110160587B (en) | Capacitance detection method and system | |
| CN113723325A (en) | Tool defect detection system for prefabricated parts | |
| CN101738397A (en) | Process for testing quality of presswork | |
| CN111507942B (en) | Chemical fiber filament yarn detection device and method based on multi-view image analysis | |
| CN113723841A (en) | Online detection method for tool missing in assembly type prefabricated part | |
| CN210796704U (en) | Detection apparatus for chemical fiber spinning technology silk road | |
| CN116256372A (en) | Optical film front-end Cheng Juancai full-detection device and detection method thereof | |
| CN117773357A (en) | Label defect identification, cutting and collection method and system | |
| CN211292638U (en) | Quick automatic checkout device of pen tube printing | |
| CN111020766B (en) | Spinning frame backward spindle searching method based on industrial camera image acquisition | |
| CN116266351A (en) | Blended yarn fabric monitoring and processing system and processing method | |
| CN117786165B (en) | Extraction processing method of inspection event, related server and medium program | |
| CN111137747B (en) | Spinning frame backward spindle searching method based on code scanning recognition | |
| CN110807453A (en) | OCR-based product character online detection method, device and system | |
| CN108881851A (en) | A kind of video record grouping system based on video monitoring | |
| CN113055595B (en) | Industrial camera control method, and coiled material defect identification method and system | |
| CN114501980A (en) | Device and method for detecting pins of special-shaped components and automatically plugging in components | |
| EP3588404A1 (en) | Mobile device for listing stock | |
| CN111097715B (en) | Fine-collateral linkage production method | |
| CN210816297U (en) | Quick detection device of marker pen accessory assembly | |
| CN110765991B (en) | High-speed rotating electrical machine fuse real-time detection system based on vision | |
| CN210513211U (en) | Capacitance detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |