CN105965894A - Automatic control system for 3D printing monitoring based on image processing - Google Patents
Automatic control system for 3D printing monitoring based on image processing Download PDFInfo
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- CN105965894A CN105965894A CN201610376187.4A CN201610376187A CN105965894A CN 105965894 A CN105965894 A CN 105965894A CN 201610376187 A CN201610376187 A CN 201610376187A CN 105965894 A CN105965894 A CN 105965894A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
Abstract
The invention provides an automatic control system for 3D printing monitoring based on image processing. The automatic control system comprises a 3D printer, a camera shooting module, an image processing module and an instruction receiving and transmitting module. The 3D printer is connected with the camera shooting module and the instruction receiving and transmitting module. The camera shooting module is connected with the image processing module. The image processing module is connected with the instruction receiving and transmitting module. The instruction receiving and transmitting module is connected with the camera shooting module. By means of the automatic control system for 3D printing monitoring based on image processing, the printer can make the judgment rapidly and stops printing when printing fails, waste of a large number of materials and waste of energy are avoided, and furthermore, damage to the 3D printer is also avoided.
Description
Technical field
The present invention relates to 3D printing technique, particularly relate to 3D monitoring printing automatic control system based on image procossing.
Background technology
3D prints as a kind of modernization manufacturing technology, and relative to traditional manufacture, 3D prints can greatly shorten product
In the cycle of product research and development, simplify production flow process.The desktop 3D printer overwhelming majority popular on the market is based on fused deposition
Molding (FDM) technology, current because of reasons such as machine itself, materials, often have and print failed situation appearance.Cause printing
Failed reason has a variety of, such as: printing head blocks, temperature sensor is gone wrong causes temperature to be made mistakes, motor is jumped
Step, line of material footpath uneven cause extrude unsuccessfully, support is ruptured, object and flat board bonding failure etc. during printing.
The failure that only minority reason causes, 3D printer can be automatically stopped printing, such as temperature mistake, and the overwhelming majority beats
In the case of printing unsuccessfully, 3D printer cannot judge, this directly results in substantial amounts of waste of material and energy waste, seriously
In the case of, the damage of 3D printer, such as motor even can be caused to burn out and shower nozzle thoroughly blocking etc..
There are some to find the solution of 3D Printing Problem based on network monitoring at present, make people permissible needs when
Observe current printing situation, mainly include some state parameters (temperature, speed etc.) and at that time print state video or
Picture, so, if it is observed that there is printing abnormal, can remotely send command for stopping, and receive and dispatch via the network of printer side
Module accept instruction and send an instruction to printer thus terminate print.Such solution is the most permissible
Avoid substantial amounts of waste of material, but still have problems: although can accomplish to monitor in real time, but printing after going wrong is
No can process in time highly dependent upon concrete executor, people are difficult to accomplish to capture the most in time the failed situation that prints, spy
It not for having a rest evening, all the more so, but to work more than 24 hours be very normal situation to 3D printer；It addition, net
Network connects has the situation of instability to occur, it might therefore cannot capture the failed situation that prints, or occur remotely sending referring to
Make failed situation etc..
Summary of the invention
The defect existed for prior art, the invention provides 3D monitoring printing based on image procossing and automatically controls and be
System, is possible not only to avoid the loss of lot of materials, it is also possible to monitoring in real time prints failed situation.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the present invention provides 3D based on image procossing
Monitoring printing automatic control system, including 3D printer, photographing module, image processing module and instruction transceiver module, described 3D
Printer is connected with described photographing module, described instruction transceiver module；
Described photographing module is connected with described image processing module；Described image processing module is with described instruction transceiver module even
Connect；Described instruction transceiver module is connected with described photographing module.
Preferably, described 3D printer sends the time-write interval to described instruction transceiver module and prints height.
Preferably, described photographing module sends digital picture to described image processing module；Described image processing module connects
Receive Digital image post-processing view data.
Preferably, described image processing module sends processing result image to described instruction transceiver module.
Preferably, described instruction transceiver module is sent out to described photographing module or described 3D printer according to processing result image
Send instruction.
Preferably, the shooting environmental of described photographing module uses soft light；Described photographing module includes photographic head, described
In the focal length of photographic head ensures captured image, print platform width accounting is about whole picture traverse 2/3rds.
Preferably, the plane of finding a view of described photographic head is parallel with printer Z-direction in described 3D printer.
Utilizing 3D monitoring printing automatic control system based on image procossing to carry out 3D monitoring printing, monitoring step is as follows:
(1) print start before, described 3D printer to described instruction transceiver module send this print needed for time-write interval and
The height of printing objects, obtains the timed interval taken pictures and determines high altitude interval；
(2) obtain initial print image, and gray processing by photographing module, carry out grayscaling, at the soft and default bar of light
Under part, identify printing flat position according to Gray-scale Matching；
(3) start to print, the time interval set according to step (1) and vertical separation, photographing module shooting image, photographing module
The image of shooting is sent to image processing module；
(4) image processing module carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, if no problem by contrast, image processing module sends processing result image to instruction transceiver module；Instruction transceiver module
Sending to 3D printer and print normal instruction, 3D printer starts to print, and prints transceiver module and judges to beat according to predetermined condition
Whether print terminates, and terminates if printing, and instruction transceiver module sends to printer and terminates print command, prints complete；If printing not
Having end, instruction transceiver module allows taking module shoot image, more than repetition according to time-write interval timing to sending shooting instruction
Step carries out the 3D after image procossing and prints；
(5) image processing module carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, is had problems by contrast images, and image processing module result is that printing goes wrong, and instruction transceiver module receives figure
After going wrong as the printing of processing module transmission, sending to 3D printer and print command for stopping, printer receives knot after instruction
Bundle prints.
Preferably, the process that shooting photo is processed by image processing module described in step (4), including walking as follows
Rapid:
First image processing module carries out pre-contrast photo gray processing to the shooting photo received, and checks whether Yuanping City Ban Chu has
Gray scale is suddenlyd change；Whether, if not having gray scale to suddenly change, need to judge to print more than 2 layers, if printing more than 2 layers, image processing module shows
There is no the result that model prints, and send printing command for stopping to instruction transceiver module, terminate to print；
There is gray scale sudden change, inspection model gray scale at shooting photo flat board, obtain approximate gray-scale scope, then extract two in advance
Contrast picture profile diagram, if the picture profile diagram after Dui Bi is no problem, image processing module is just sending to instruction transceiver module
The result often printed；
Two the pre-contrast picture profile diagrams extracted occur that center of gravity occurs greatly skew, and bonding failed, the model silhouette of model does not has
Change, shower nozzle blocking, height profile of taking pictures according to last time undergo mutation, in leapfrog one or more, image processing module is to finger
Make transceiver module send and print failure command.
Compare with prior art, the beneficial effect comprise that:
(1) the 3D monitoring printing automatic control system based on image procossing that the present invention provides is in the case of printing unsuccessfully, beats
Print machine can quickly judge and terminate to print, it is to avoid substantial amounts of waste of material and energy waste, and then it also avoid
The damage of 3D printer；
(2) the 3D monitoring printing automatic control system based on image procossing that the present invention provides is possible not only to realize monitoring in real time,
Can process timely when printing goes wrong, the least to the degree of dependence of executor, save labour.
Accompanying drawing explanation
Fig. 1 is the 3D monitoring printing automatic control system overall schematic based on image procossing that the present invention provides；
Fig. 2 is the 3D monitoring printing automatic control system structural representation based on image procossing that the present invention provides；
Fig. 3 is the 3D monitoring printing automatic control system workflow diagram based on image procossing that the present invention provides；
Fig. 4 is image processing module flow process in the 3D monitoring printing automatic control system based on image procossing that the present invention provides
Figure；
In the accompanying drawings, the concrete meaning of each labelling is as follows:
1:3D printer；2: photographing module；3: image processing module；4: instruction transceiver module.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is explained in detail.
Shown in ginseng Fig. 1-4, Fig. 1 is that the 3D monitoring printing automatic control system based on image procossing that the present invention provides is overall
Schematic diagram；Fig. 2 is the 3D monitoring printing automatic control system structural representation based on image procossing that the present invention provides；Fig. 3 is
The 3D monitoring printing automatic control system workflow diagram based on image procossing that the present invention provides；Fig. 4 is that the present invention provides
Image processing module flow chart in 3D monitoring printing automatic control system based on image procossing.Wherein based on image in the present invention
The 3D monitoring printing automatic control system processed includes 3D printer 1, photographing module 2, image processing module 3 and instruction transmitting-receiving mould
Block 4.
Shown in ginseng Fig. 1-2,3D printer 1 is connected with photographing module 2, instruction transceiver module 4 respectively, photographing module 2 and figure
As processing module 3, image processing module 3 is connected with instruction transceiver module 4；Instruction transceiver module 4 is also connected with photographing module 2.
3D printer 1 sends the time-write interval to instruction transceiver module 4 and prints height, and photographing module 2 sends number to image processing module 3
Word image, image processing module 3 carries out image real time transfer to the digital picture received, and image processing module 3 is to judge to print
The most failed core processing module；Processing result image is sent to instruct transceiver module 4 by image processing module 3；Instruction is received
Send out module 4 and send instruction according to processing result image to photographing module 2 or 3D printer.
The light of photographing module 2 shooting environmental to ensure soft, and changes over little, desktop 3D printer court
Direction that is semiclosed and that close is developed, and most machine can meet this condition, if machine is unsatisfactory for, it is possible to letter voluntarily
Single photoenvironment of building, very convenient；In photographing module, the focal length of photographic head to mix up, it is ensured that the image definition of shooting is non-
Chang Hao；It addition, photographic head is found a view, plane is parallel with printer Z-direction or less parallel, or could be secured on machine.
Shown in ginseng Fig. 3,3D monitoring printing automatic control system monitoring printing process based on image procossing is such as
(1), before printing starts, described 3D printer 1 sends the time-write interval needed for this prints to described instruction transceiver module 4
With the height of printing objects, obtain the timed interval (every how long clapping an image) taken pictures and determine high altitude interval
(often printing one image of many high bats)；
(2) obtain initial print image, and gray processing by photographing module 2, carry out grayscaling, at the soft and default bar of light
Under part, identifying printing flat position according to Gray-scale Matching, the flat board being in zero position identified, picture below can
Quickly search printing objects with several pixels downward herein, and obtain the gray value approximate interval of printing objects；
(3) starting to print, the time interval set according to step (1) and vertical separation, photographing module 2 shoots image, images mould
The image of shooting is sent to image processing module 3 by block 2；
(4) image processing module 3 carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, if no problem by contrast, image processing module 3 sends processing result image to instruction transceiver module 4；Instruction transmitting-receiving mould
Block 4 sends to 3D printer 1 and prints normal instruction, and 3D printer 1 starts to print, and instruction transceiver module 4 is according to predetermined condition
Whether judging to print and terminate, terminating if printing, instruction transceiver module 4 sends to printer and terminates print command, prints complete；If
Printing is not over, and instruction transceiver module 4 allows taking module 2 shoot image according to time-write interval timing to sending shooting instruction,
Repeat the 3D after above step carries out image procossing to print；
(5) image processing module 3 carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, is had problems by contrast images, and image processing module 3 result is that printing goes wrong, and instruction transceiver module 4 receives
After the printing that image processing module sends goes wrong, send to 3D printer 1 and print command for stopping, after printer receives instruction
Terminate to print.
Shown in ginseng Fig. 4, image procossing in the 3D monitoring printing automatic control system based on image procossing that the present invention provides
Module 3 process is as follows:
First image processing module 3 carries out pre-contrast photo gray processing to the shooting photo received, and whether checks Yuanping City Ban Chu
Gray scale is had to suddenly change；Whether, if not having gray scale to suddenly change, need to judge to print more than 2 layers, if printing more than 2 layers, image processing module shows
Show the result not having model to print, and send printing command for stopping to instruction transceiver module 4, terminate to print；
There is gray scale sudden change, inspection model gray scale at shooting photo flat board, obtain approximate gray-scale scope, then extract two in advance
Contrast picture profile diagram, if the picture profile diagram after Dui Bi is no problem, image processing module 3 sends to instruction transceiver module 4
The result of normal print；
Two the pre-contrast picture profile diagrams extracted occur that center of gravity occurs greatly skew, and bonding failed, the model silhouette of model does not has
Change, shower nozzle blocking, height profile of taking pictures according to last time undergo mutation, in leapfrog one or more, image processing module 3 is to finger
Make transceiver module 4 send and print failure command.
A series of detailed description mentioned above is only for illustrating of the feasibility embodiment of the present invention,
They are not to limit the scope of the invention, in the ken that described technical field those of ordinary skill is possessed
In, the various changes made on the premise of without departing from present inventive concept belong to protection scope of the present invention.
Claims (9)
1. 3D monitoring printing automatic control system based on image procossing, including 3D printer, photographing module, image processing module
With instruction transceiver module, it is characterised in that
Described 3D printer is connected with described photographing module, described instruction transceiver module；
Described photographing module is connected with described image processing module；Described image processing module is with described instruction transceiver module even
Connect；Described instruction transceiver module is connected with described photographing module.
2. 3D monitoring printing automatic control system based on image procossing as claimed in claim 1, it is characterised in that described 3D
Printer sends the time-write interval to described instruction transceiver module and prints height.
3. 3D monitoring printing automatic control system based on image procossing as claimed in claim 1, it is characterised in that described in take the photograph
As module sends digital picture to described image processing module；Described image processing module receives Digital image post-processing picture number
According to.
4. 3D monitoring printing automatic control system based on image procossing as claimed in claim 1, it is characterised in that described figure
As processing module sends processing result image to described instruction transceiver module.
5. 3D monitoring printing automatic control system based on image procossing as claimed in claim 4, it is characterised in that described finger
Transceiver module is made to send instruction according to processing result image to described photographing module or described 3D printer.
6. 3D monitoring printing automatic control system based on image procossing as claimed in claim 1, it is characterised in that described in take the photograph
As the shooting environmental of module uses soft light；Described photographing module includes photographic head, and the focal length of described photographic head ensures to be clapped
Taking the photograph print platform width accounting in image is whole picture traverse 2/3rds.
7. 3D monitoring printing automatic control system based on image procossing as claimed in claim 6, it is characterised in that described in take the photograph
As the plane of finding a view of head is parallel with printer Z-direction in described 3D printer.
8. utilize the arbitrary described 3D monitoring printing automatic control system based on image procossing of claim 1-7 to carry out 3D printing
Monitoring, it is characterised in that monitoring step is as follows:
(1) print start before, described 3D printer to described instruction transceiver module send this print needed for time-write interval and
The height of printing objects, obtains the timed interval taken pictures and determines high altitude interval；
(2) obtain initial print image, and gray processing by photographing module, carry out grayscaling, at the soft and default bar of light
Under part, identify printing flat position according to Gray-scale Matching；
(3) start to print, the time interval set according to step (1) and vertical separation, photographing module shooting image, photographing module
The image of shooting is sent to image processing module；
(4) image processing module carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, if no problem by contrast, image processing module sends processing result image to instruction transceiver module；Instruction transceiver module
Sending to 3D printer and print normal instruction, 3D printer starts to print, and prints transceiver module and judges to beat according to predetermined condition
Whether print terminates, and terminates if printing, and instruction transceiver module sends to printer and terminates print command, prints complete；If printing not
Having end, instruction transceiver module allows taking module shoot image, more than repetition according to time-write interval timing to sending shooting instruction
Step carries out the 3D after image procossing and prints；
(5) image processing module carries out twice timing image comparison and determines hi-vision pair twice the image of twice shooting of front and back
Ratio, is had problems by contrast images, and image processing module result is that printing goes wrong, and instruction transceiver module receives figure
After going wrong as the printing of processing module transmission, sending to 3D printer and print command for stopping, printer receives knot after instruction
Bundle prints.
9. 3D monitoring printing automatic control system based on image procossing as claimed in claim 8 carries out 3D monitoring printing, its
It is characterised by that the process that shooting photo is processed by image processing module described in step (4) comprises the steps:
First image processing module carries out pre-contrast photo gray processing to the shooting photo received, and checks whether Yuanping City Ban Chu has
Gray scale is suddenlyd change；Whether, if not having gray scale to suddenly change, need to judge to print more than 2 layers, if printing more than 2 layers, image processing module shows
There is no the result that model prints, and send printing command for stopping to instruction transceiver module, terminate to print；
There is gray scale sudden change, inspection model gray scale at shooting photo flat board, obtain approximate gray-scale scope, then extract two in advance
Contrast picture profile diagram, if the picture profile diagram after Dui Bi is no problem, image processing module is just sending to instruction transceiver module
The result often printed；
Two the pre-contrast picture profile diagrams extracted occur that center of gravity occurs greatly skew, and bonding failed, the model silhouette of model does not has
Change, shower nozzle blocking, height profile of taking pictures according to last time undergo mutation, in leapfrog one or more, image processing module is to finger
Make transceiver module send and print failure command.
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| CN201610376187.4A CN105965894A (en) | 2016-05-31 | 2016-05-31 | Automatic control system for 3D printing monitoring based on image processing |
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| CN201610376187.4A CN105965894A (en) | 2016-05-31 | 2016-05-31 | Automatic control system for 3D printing monitoring based on image processing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262953A (en) * | 2017-09-15 | 2018-07-10 | 杭州先临三维科技股份有限公司 | The scaling method of DLP three-dimensional printers and its projecting apparatus |
| CN109277568A (en) * | 2018-11-17 | 2019-01-29 | 厦门五星珑科技有限公司 | A kind of method of real-time of precinct laser fusion, device and system |
| CN109291431A (en) * | 2018-10-29 | 2019-02-01 | 南京师范大学 | A kind of FDM printer failure monitoring system |
| CN109703032A (en) * | 2018-12-29 | 2019-05-03 | 广东工贸职业技术学院 | A kind of control method and system of the 3D network printer |
| CN111844740A (en) * | 2019-04-24 | 2020-10-30 | 精工爱普生株式会社 | Method for determining quality of three-dimensional object and three-dimensional molding device |
| CN113016004A (en) * | 2018-11-16 | 2021-06-22 | 阿莱恩技术有限公司 | Machine-based three-dimensional (3D) object defect detection |
| CN113306136A (en) * | 2021-04-20 | 2021-08-27 | 安徽工程大学 | 3D printer stacking confusion alarm system and method based on target detection |
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| CN104943176A (en) * | 2015-06-23 | 2015-09-30 | 南京信息工程大学 | 3D printer based on image recognition technique and printing method of 3D printer |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104943176A (en) * | 2015-06-23 | 2015-09-30 | 南京信息工程大学 | 3D printer based on image recognition technique and printing method of 3D printer |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262953A (en) * | 2017-09-15 | 2018-07-10 | 杭州先临三维科技股份有限公司 | The scaling method of DLP three-dimensional printers and its projecting apparatus |
| CN108262953B (en) * | 2017-09-15 | 2020-06-02 | 杭州先临三维科技股份有限公司 | DLP three-dimensional printer and calibration method of projector thereof |
| CN109291431A (en) * | 2018-10-29 | 2019-02-01 | 南京师范大学 | A kind of FDM printer failure monitoring system |
| CN109291431B (en) * | 2018-10-29 | 2020-10-30 | 南京师范大学 | FDM printer fault monitoring system |
| CN113016004A (en) * | 2018-11-16 | 2021-06-22 | 阿莱恩技术有限公司 | Machine-based three-dimensional (3D) object defect detection |
| CN109277568A (en) * | 2018-11-17 | 2019-01-29 | 厦门五星珑科技有限公司 | A kind of method of real-time of precinct laser fusion, device and system |
| CN109277568B (en) * | 2018-11-17 | 2021-04-23 | 厦门五星珑科技有限公司 | Real-time monitoring method, device and system for selective laser melting |
| CN109703032A (en) * | 2018-12-29 | 2019-05-03 | 广东工贸职业技术学院 | A kind of control method and system of the 3D network printer |
| CN111844740A (en) * | 2019-04-24 | 2020-10-30 | 精工爱普生株式会社 | Method for determining quality of three-dimensional object and three-dimensional molding device |
| US11241840B2 (en) | 2019-04-24 | 2022-02-08 | Seiko Epson Corporation | Quality determination method for three-dimensional shaped object and three-dimensional shaping device |
| CN111844740B (en) * | 2019-04-24 | 2022-04-26 | 精工爱普生株式会社 | Method for determining quality of three-dimensional object and three-dimensional molding device |
| CN113306136A (en) * | 2021-04-20 | 2021-08-27 | 安徽工程大学 | 3D printer stacking confusion alarm system and method based on target detection |
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