CN115230150A - Feedback information generation method and device, electronic equipment and computer readable medium - Google Patents
Feedback information generation method and device, electronic equipment and computer readable medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- 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
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Abstract
The application discloses a feedback information generation method, a feedback information generation device, electronic equipment and a computer readable medium. The method is applied to the 3D printing equipment, and one specific embodiment of the method comprises the following steps: when a printing platform of the printing equipment is lifted to a target height, controlling shooting equipment to shoot a printed model; processing the data of the printed model obtained by shooting to obtain the current height of the printed model; comparing the current height to a design height of the printed model; and generating feedback information according to the obtained comparison result. Through the height and the correct height of the real-time identification model of camera in the printing process, the conditions such as whether the model has a fault, drops or the model is connected with the printing platform and has a defect are judged, whether the model printing fails can be detected in time, and then the waste of materials can be avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of 3D printing, in particular to a feedback information generation method and device, electronic equipment and a computer readable medium.
Background
The 3D printer was first invented by american scientists in the middle of the 20 th century and the 80's. The 3D printer is a device that produces a real three-dimensional object by using a 3D printing technology, and its basic principle is to use special consumables (glue, resin or powder, etc.) to bond and form each layer of powder by deposition of an adhesive according to a three-dimensional model designed in advance by a computer, and finally print out a 3D entity. The rapid forming technology has the advantages of high processing speed and low cost, and is widely applied to model making in the product development stage. The 3D printing is one of the rapid prototyping technologies, which first converts an object into 3D data, and then applies a bondable material such as powdered metal or plastic to cut and print layer by layer. Mold making, industrial design for building models, is now evolving into product making, resulting in "direct digital manufacturing". A variety of different rapid prototyping processes have been developed, such as Stereolithography (SLA), laminated Object Manufacturing (LOM), fused Deposition Modeling (FDM), selective Laser Sintering (SLS), three-dimensional printing (3 DP), surface exposure printing, and the like.
At present, when a photocuring 3D printer is used for printing by using a slice file, a plurality of printing failures exist: for example, the model drops, many materials, fault, breach, dislocation or other uncertain environmental interventions, when the printing model fails, current printer can not automated inspection model printing failure to automatically make the machine stop and in time inform the user to eradicate the failed model, need the people to go repeatedly to check whether current printing model fails, suppose that the section file model size is big and the printing time is very long and can not automated inspection when the failure appears midway can lead to wasting a large amount of consumptive materials and time.
Disclosure of Invention
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Some embodiments of the present invention provide a feedback information generating method, apparatus, electronic device and computer readable medium to solve the technical problems mentioned in the background above.
In a first aspect, some embodiments of the present invention provide a method for generating feedback information, the method including: when a printing platform of the printing equipment is lifted to a target height, controlling shooting equipment to shoot a printed model;
processing the data of the printed model obtained by shooting to obtain the current height of the printed model;
comparing the current height to a design height of the printed model;
and generating feedback information according to the obtained comparison result.
In a second aspect, some embodiments of the present invention provide a feedback information generating apparatus, including: the shooting unit is used for controlling the shooting equipment to shoot the printed model when the printing platform of the printing equipment is lifted to the target height;
the processing unit is used for processing the data of the printed model obtained by shooting to obtain the current height of the printed model;
a comparison unit for comparing the current height with a design height of the printed model;
and the generating unit is used for generating feedback information according to the obtained comparison result.
In a third aspect, some embodiments of the invention provide an electronic device comprising: the shooting device is used for shooting the printed model in the 3D printing device; a memory for storing executable instructions; a processor configured to execute the electronic device according to the control of the instruction to perform the method according to the first aspect of the present disclosure.
In a fourth aspect, some embodiments of the invention provide a computer readable medium having stored thereon a computer program which, when executed by a processor, performs the method according to the first aspect of the invention.
One of the above embodiments of the present invention has the following beneficial effects: when a printing platform of the printing equipment is lifted to a target height, controlling shooting equipment to shoot a printed model; processing the data of the printed model obtained by shooting to obtain the current height of the printed model; comparing the current height to a design height of the printed model; and generating feedback information according to the obtained comparison result. Through the height and the correct height of the real-time identification model of camera in the printing process, the conditions such as whether the model has a fault, drops or the model is connected with the printing platform and has a defect are judged, whether the model printing fails can be detected in time, and then the waste of materials can be avoided.
Drawings
The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that elements and features are not necessarily drawn to scale.
Fig. 1 is a flow diagram of some embodiments of a feedback information generation method according to the present invention;
FIG. 2 is a flow diagram according to some embodiments of a feedback information generation method of the present invention;
fig. 3 is a schematic structural diagram of a 3D printing apparatus according to some embodiments of the feedback information generation method of the present invention;
FIG. 4 is a schematic illustration of a slice file of a design model that has been printed to an nth layer according to some embodiments of the present invention;
FIG. 5 is a schematic illustration of a slice file of a complete design model according to some embodiments of the invention;
FIG. 6 is a representation of a real object captured by a printed model printed on an nth layer according to some embodiments of the inventions;
FIG. 7 is a flow diagram of still other embodiments of a feedback information generation method according to the present invention;
8a-8d are photographs of a model printed physical object in accordance with other embodiments of the invention;
fig. 9 is a schematic structural diagram of some embodiments of a feedback information generating apparatus according to the present invention;
FIG. 10 is a schematic block diagram of an electronic device suitable for use in implementing some embodiments of the invention.
Detailed Description
Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and the embodiments of the present invention are illustrative only and are not intended to limit the scope of the present invention.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
It should be noted that the terms "first", "second", and the like in the present invention are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence of the functions performed by the devices, modules or units.
It is noted that references to "a", "an", and "the" modifications in the present invention are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that reference to "one or more" unless the context clearly dictates otherwise.
The names of messages or information exchanged between devices in the embodiments of the present invention are for illustrative purposes only, and are not intended to limit the scope of the messages or information.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 3, is a schematic structural diagram of a 3D printing apparatus in which fig. 3 is some embodiments of a feedback information generation method according to the present invention. The 3D printing apparatus includes: drive mechanism, print platform, resin tank, light source, base. In fig. 3, the 3D printing device connects the printed model to the bottom of the printing platform during the printing process. The transmission mechanism is used for controlling the printing platform to move up and down; the resin tank is used for containing resin, wherein the resin is used for printing a model; the base is used for installing the printing equipment on a platform, and the platform comprises a bottom surface and a desktop. The light source is used for providing illumination for the model printing process, so that the corresponding sliced layer can be photocured, wherein the light source can be provided from a light-emitting device installed on the base, and the light-emitting device can be a light-emitting LED in a purple light wave band.
Fig. 1 illustrates a flow 100 of some embodiments of a feedback information generation method according to the present invention. The feedback information generation method is applied to 3D printing equipment and comprises the following steps:
and 101, when the printing platform of the printing device is lifted to a target height, controlling the shooting device to shoot the printed model.
In some embodiments, the execution subject of the feedback information generation method may be a server, and the execution subject controls the shooting device to shoot the printed model when the printing platform of the printing device is lifted to the target height. The shooting device may be a terminal device with a shooting function, and may be a camera, a mobile phone, and particularly a high-definition camera, for example. The above target height may be set according to the photographing apparatus, for example, in the vertical direction, the photographing apparatus is set in the area between the resin tank and the printing platform, so as to prevent the resin tank or the printing platform from shielding the photographing, and in some embodiments, the photographing apparatus may be attached to the sidewall of the 3 printing apparatus, so as to prevent the resin tank or the printing platform from shielding the photographing.
In some optional implementations of some embodiments, the shooting device is controlled to shoot the printed model based on shooting accuracy of a camera of the shooting device and printing accuracy of the printing device. The printing precision of the printing device can be the thickness of the model slice layer to be printed, namely the thickness of the model slice layer to be printed.
In some optional implementations of some embodiments, the shooting precision Y of the camera and the thickness X of the slice layer are obtained; determining the number Z of printing spacing layers based on the shooting precision Y and the thickness X of the slicing layer, wherein Z = Y/X; and if the number of the layers of the slices shot by the camera at the last time to the number of the layers of the current exposure layer is the interval number Z, controlling the shooting equipment to shoot the printed model after the printing of the current exposure layer is finished. Because the recognition precision of the camera often cannot reach the minimum thickness (0.05 mm) of each layer of slice of the model, the model is required to be printed and accumulated to reach the precision of the camera after being printed for multiple layers, the printing accumulated layer number can be called as a spacing layer number Z, if the thickness of each layer of the model slice is Xmm, and the recognition precision of the camera is Ymm, the spacing layer number Z = Y/X, then the model slice can be recognized once every time the layer is printed for Y/X, for example, the thickness of the slice of the model to be printed is 0.05mm, the shooting precision of the camera is 0.5mm, and then the spacing layer number has 0.5mm/0.05mm layer.
In addition to controlling shooting according to the above calculation, in some embodiments, it may also be set that after a certain number of spacing layers are printed, for example, after every 1000 number of spacing layers are printed, the printing platform is directly adjusted to a proper position, and then the shooting device is controlled to shoot the printed model. In this way, the shooting precision of the shooting device and the printing precision of the printing device do not need to be considered, so that the operation is simplified, and the efficiency is improved.
And 102, processing the data of the printed model obtained by shooting to obtain the current height of the printed model.
In some embodiments, the executing body may process the data of the printed model obtained by shooting to obtain the current height of the printed model. Here, AI processing is performed on the photographed data to obtain the current height of the printed model.
In some implementations, the noise of the shot data is very much, the noise at the corresponding position in the specific frame data can be replaced and compensated through data synthesis by shooting multi-frame data, and finally the definition of the data is optimized through an Image Signal Processor (ISP), so that the data with higher definition can be obtained as far as possible. And then the current height of the printed model is obtained in a data comparison mode. In other embodiments, during the shooting process, some reference object with known height or thickness can be shot, such as the known height of the resin tank, and the current height of the printed model is obtained by comparing the height of the resin tank with the height of the printed model.
In some embodiments, the executing entity may compare the current height to a design height of the printed model.
In some embodiments, such as the embodiment of photocuring 3D printing, since the model needs to be subjected to layer slicing processing on slicing software before 3D printing, the thickness of each layer can be represented in the slicing data during the layer slicing processing, and finally printing is performed by importing the slicing data into the 3D printing device. The design height of the printed model described above can be obtained from the product of the thickness of each layer in the slice data and the number of accumulated printed layers.
And 104, generating feedback information according to the obtained comparison result.
In some embodiments, the execution subject may generate feedback information according to the comparison result. As an example, a maximum error acceptance value may be set, which may be preset and may be obtained by a worker based on a great amount of experience. For example, it may be 10 mm. The comparison result may be a difference between the current height and a design height of the model to be printed corresponding to the current exposure layer, and the feedback information may be information for indicating that the printing is successful when the difference is smaller than the maximum error acceptance value, for example, the feedback information may be "printing is successful, and printing may be continued". When the difference is greater than the maximum error acceptance value, the feedback information may be information for indicating printing failure, for example, the feedback information may be "printing failure, stop printing".
In some optional implementations of some embodiments, the photographing apparatus is installed in the printing apparatus according to the target printing apparatus-related information. For example, one or more photographing apparatuses may be installed at the side of the printing apparatus. The target printing device may be an optical solid 3D printer. The shooting device can be arranged at the left side and the right side of the printing device, and can also be arranged opposite to the transmission mechanism. As an example, the number of the photographing devices may be two, and one photographing device is installed at each of opposite corners of the target printing device. For example, there may be two corners opposite the target printing device, each corner having one camera mounted thereon.
In some optional implementations of some embodiments, before controlling the photographing apparatus to photograph the printed model, a printing platform of the printing apparatus is adjusted to the target height according to the number of spacing layers. The target height may be the distance of the printing platform from the bottom of the resin vat. Since the printing height of each layer of the printer is the same, the height of the printed model can be known according to the number of the spacing layers, and in order to obtain a complete printed model by shooting, all the printed models need to be exposed out of the resin tank, so that the height of the resin tank plus the height of the printed model can be used as the target height of the printing platform.
As an example, since some models have a small height and the lens of the camera has a certain height, the printing platform is still below the angle that can be captured by the camera until the printing is completed, and if the height detection mode is turned on, the printing platform is raised by a certain height each time the height needs to be detected, so that the camera can capture the model.
In some optional implementations of some embodiments, in response to the comparison result indicating that the difference between the current height and the design height is within a preset range, the feedback information is sent to the printing device, and the printing device is controlled to continue printing. The preset range may be preset.
In some optional implementations of some embodiments, in response to the comparison result indicating that the difference between the current height and the design height is not within the preset range, sending the feedback information to the printing apparatus, and controlling the printing apparatus to stop printing.
In some optional implementations of some embodiments, the feedback information is sent to a terminal device with a display function associated with the printing device, and the terminal device is controlled to display the feedback information; and sending the feedback information to target application software of the terminal equipment associated with the printing equipment. The terminal device with the display function may be a terminal device with a display function that is connected to the target printing device by wire or wirelessly, and may be a mobile phone, a computer, or the like. The target application software may be application software installed on the terminal device and having a wireless connection with the target printing device.
Some embodiments of the present invention disclose a feedback information generating method, when a printing platform of the printing device is lifted to a target height, controlling a shooting device to shoot a printed model; processing the data of the printed model obtained by shooting to obtain the current height of the printed model; comparing the current height to a design height of the printed model; and generating feedback information according to the obtained comparison result. Through the height and the correct height of the real-time identification model of the camera in the printing process, whether the model has a fault or not is judged, and the conditions such as the defect of connection between the model and a printing platform and the like are avoided, so that whether the model printing fails or not can be timely detected, and further the waste of materials can be avoided.
As an example, the photocuring printing is formed by overlapping cured n layers of resins, n layers of slices exist in slice data or a slice file, when the slice data or the slice file is generated, the printing device can acquire various printing parameters such as the total number of layers and the layer thickness of the model according to the slice file, and meanwhile, a design contour map corresponding to the printed model can be obtained according to the slice data, and height information between corresponding positions can also be obtained through the design contour map.
When slicing is started, the height of each layer of information of the model is stored, for example, when the model is printed to the mth layer (m is a positive integer less than or equal to n), the total design height from the mth layer to the 1 st layer is what, in the slicing data, the design outline corresponding to the printed model with the model of the mth layer printed is shown in fig. 4, the design outline with the complete model is shown in fig. 5, and the camera shooting real object image of the model printed to the mth layer is shown in fig. 6. Whether the 3D printing model fails or not can be judged through the height comparison between the image data in the image data table and the image data in the image data table of the 3D printing model, namely through the comparison between the design height in the image data table and the current height of the shot real object.
Because the actual thickness of each layer of the model is very small, comparison of each layer is not necessary, and comparison can be performed every other preset layer according to the total number of layers of the model. The situation that the model is not hit (whether the situation that the printing model is connected to the printing platform is normal or not) or the fault and the like can be detected through comparison of the heights.
In some embodiments, as shown in fig. 2, a height detection control switch may be further configured, and the height of the printing platform is adjusted by turning on the height detection switch (shown in the drawing that "the printing parameter is adjusted, and the printing lifting height is adjusted to X + Y height (X is the original lifting height, and Y is the height from the bottom of the trough to the lens of the camera)"), the first layer is printed (shown in the drawing that i is the number of layers, the value range is a natural number from 0, and the first layer corresponds to i = 0), the printing platform is lifted after printing is completed, it is determined whether shooting is required (Z shown in the drawing indicates shooting at every Z layer), it is determined whether the number of layers of slices shot by the last camera to the number of layers of the current exposure layer is Z, if not, printing is continued, if so, the camera shoots data, AI processing is performed according to the data, the current height of the model is obtained, then, the current height is compared with the design height, and the height is consistent, if so, it is determined whether the height is consistent, it is determined whether printing is printed to be the last layer, if not, the last layer, printing is continued.
If the heights are not consistent, printing is stopped (shown as "print prompt paused and information reported").
Fig. 7 shows a flow 700 of further embodiments of a feedback information generation method according to the present invention. The feedback information generation method is applied to 3D printing equipment and comprises the following steps:
In some embodiments, the execution subject of the feedback information generation method may set a feature block for the model on a print file before the model is printed, the feature block being used to identify or calculate the current height.
8a-8d, FIGS. 8a-8d are pictorial representations of a printed object at various times during the printing of a model by a printing device. The feature block is a block structure extending up and down in the height direction and vertically connected to the printing platform, i.e. the feature block is parallel to the current height direction. Each mark block is connected with other mark blocks at a certain angle, the connection angle is the same, and the length of each mark block is the same.
In some optional implementations of some embodiments, the feature block is set to be parallel to the direction of the current height, and the feature block includes at least one flag block having a preset length. As an example, in the feature blocks shown in fig. 8a to 8d, two adjacent mark blocks intersect to form a polygon shape, and the length or height of each mark block is predetermined, for example, 1 cm as a predetermined length, and the total length or total height of the plurality of mark blocks connected together in the polygon shape can be calculated, so as to obtain the current height of the corresponding printed model.
For example, the mark blocks may be triangular, diamond-shaped, square, or even straight. For distance, if the model is a triangle, the height or side length of the triangle can be calculated, so that data of the triangle in the current height direction can be obtained, and the distance between two adjacent triangles can also be calculated, so that the current height of the printed model can be calculated. Similarly, the current height can be calculated for a square or other mark block.
And 702, when the printing platform of the printing device is lifted to the target height, controlling the shooting device to shoot the printed model.
In some embodiments, the specific implementation and technical effect of step 702 may refer to step 101 in those embodiments corresponding to fig. 1, and are not described herein again.
In some embodiments, the executing agent may identify the feature block to obtain a current height of the printed model. Because the shape of the model to be printed may be irregular, the height is not convenient to measure, and the feature block is perpendicular to the printing platform, and the height of the feature block is the height of the current printed model.
In some embodiments, the specific implementation of steps 704-705 and the technical effects brought by the implementation can refer to steps 103-104 in those embodiments corresponding to fig. 1, and are not described herein again.
Some embodiments of the present invention disclose a feedback information generating method, before a model is printed, a feature block is set for the model on a print file, the feature block is used for identifying or calculating the current height; when a printing platform of the printing equipment is lifted to a target height, controlling shooting equipment to shoot a printed model; identifying the feature block to obtain the current height of the printed model; comparing the current height to a design height of the printed model; and generating feedback information according to the obtained comparison result. Through the height and the correct height of the real-time identification model of camera in the printing process, the judgment model has the fault, and the conditions such as falling, not beating are judged, so that whether the model printing fails can be timely detected, and the waste of materials can be further avoided.
With further reference to fig. 9, as an implementation of the methods shown in the above figures, the present invention provides some embodiments of a feedback information generating apparatus, which correspond to those of the method embodiments shown in fig. 1, and which can be applied in various electronic devices.
As shown in fig. 9, the feedback information generating apparatus 900 of some embodiments includes: a photographing unit 901, a processing unit 902, a comparing unit 903, and a generating unit 904. The shooting unit 901 is used for controlling the shooting device to shoot the printed model when the printing platform of the printing device is lifted to the target height; a processing unit 902, configured to process the data of the printed model obtained by shooting, so as to obtain a current height of the printed model; a comparing unit 903 for comparing the current height with a design height of the printed model; a generating unit 904, configured to generate feedback information according to the obtained comparison result.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: and controlling the shooting equipment to shoot the printed model based on the shooting precision of the camera of the shooting equipment and the printing precision of the printing equipment.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: acquiring the shooting precision Y of a camera and the thickness X of a sliced layer; determining the number Z of printing interval layers based on the shooting precision Y and the minimum precision X, wherein Z = Y/X; and if the number of the slice layers shot by the camera at the last time is equal to the number Z of the interval layers of the current exposure layer, controlling the shooting equipment to shoot the printed model after the current exposure layer is printed.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: and adjusting the printing platform of the printing equipment to the target height according to the number of the spacing layers before controlling the shooting equipment to shoot the printed model.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: and responding to the comparison result that the difference value between the current height and the design height is represented in a preset range, sending the feedback information to the printing equipment, and controlling the printing equipment to continue printing.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: and responding to the comparison result representing that the difference value between the current height and the design height is not in the preset range, sending the feedback information to the printing equipment, and controlling the printing equipment to stop printing.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: before the model is printed, setting a characteristic block for the model on a printing file, wherein the characteristic block is used for identifying or calculating the current height; the processing unit 902 is further configured to: and identifying the characteristic block to obtain the current height of the printed model.
In an optional implementation of some embodiments, the feedback information generating apparatus 900 is further configured to: and setting the characteristic blocks to be parallel to the direction of the current height, wherein the characteristic blocks comprise at least one mark block with a preset length.
It will be understood that the units described in the apparatus 900 correspond to the various steps in the method described with reference to fig. 1. Thus, the operations, features and advantages described above with respect to the method are also applicable to the apparatus 900 and the units included therein, and are not described herein again.
Corresponding to the above method embodiment, in this embodiment, an electronic device is further provided, please refer to fig. 10, which is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
As shown in fig. 10, the electronic device 1000 may include a processor 1020 and a memory 1010, the memory 1010 for storing executable instructions; the processor 1020 is configured to operate the electronic device to perform a method according to any embodiment of the invention, according to the control of the instructions.
It should be noted that the computer readable medium described above in some embodiments of the present invention may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In some embodiments of the invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In some embodiments of the invention, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.
In some embodiments, the clients, servers may communicate using any currently known or future developed network Protocol, such as HTTP (HyperText Transfer Protocol), and may interconnect with any form or medium of digital data communication (e.g., a communications network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the Internet (e.g., the Internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed network.
The computer readable medium may be embodied in the electronic device; or may be separate and not incorporated into the electronic device. The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to: in response to the fact that the current exposure layer needs to be shot, when a printing platform of the printing equipment is lifted to the target height, the shooting equipment is controlled to shoot; processing the data obtained by shooting to obtain the current height of the printed model; comparing the current height with the design height of the model to be printed corresponding to the current exposure layer; and generating feedback information according to the comparison result.
Computer program code for carrying out operations for embodiments of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The elements described in some embodiments of the invention may be implemented in software or hardware. The described units may also be provided in a processor, and may be described as: a processor includes a photographing unit, a processing unit, a comparing unit, and a generating unit. The names of these units do not constitute a limitation on the unit itself in some cases, and for example, the shooting unit may also be described as "a unit that controls the shooting device to shoot when the printing platform of the printing device is raised to a target height in response to determining that the currently exposed layer needs to be shot".
The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), system on a chip (SOCs), complex Programmable Logic Devices (CPLDs), and the like.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features and (but not limited to) technical features with similar functions disclosed in the embodiments of the present invention are mutually replaced to form the technical solution.
Claims (10)
1. A feedback information generation method is applied to a 3D printing device and is characterized by comprising the following steps:
when a printing platform of the printing equipment is lifted to a target height, controlling shooting equipment to shoot a printed model;
processing the data of the printed model obtained by shooting to obtain the current height of the printed model;
comparing the current height to a design height of the printed model;
and generating feedback information according to the obtained comparison result.
2. The method of claim 1, further comprising:
controlling the shooting device to shoot the printed model based on the shooting precision of a camera of the shooting device and the printing precision of the printing device;
or after the number of the spacing layers Z is printed, controlling the shooting equipment to shoot the printed model.
3. The method according to claim 2, wherein the controlling of the photographing apparatus to photograph the printed model based on the photographing accuracy of the camera of the photographing apparatus and the printing accuracy of the printing apparatus comprises:
acquiring the shooting precision Y of a camera and the thickness X of a sliced layer;
determining the number Z of printed spacing layers based on the shooting precision Y and the thickness X of the slicing layer, wherein Z = Y/X;
and if the number of the layers of the slices shot by the camera at the last time to the number of the current exposure layers is the interval number Z, controlling the shooting equipment to shoot the printed model after the current exposure layers are printed.
4. The method of claim 3, further comprising:
and adjusting the printing platform of the printing equipment to the target height according to the number of the spacing layers before controlling the shooting equipment to shoot the printed model.
5. The method of claim 1, further comprising:
and responding to the comparison result that the difference value between the current height and the design height is represented in a preset range, sending the feedback information to the printing equipment, and controlling the printing equipment to continue printing.
6. The method of claim 1, further comprising:
and responding to the comparison result representing that the difference value between the current height and the design height is not in the preset range, sending the feedback information to the printing equipment, and controlling the printing equipment to stop printing.
7. The method of claim 1,
the method further comprises the following steps: before the model is printed, setting a characteristic block for the model on a printing file, wherein the characteristic block is used for identifying or calculating the current height;
the processing the data of the printed model obtained by shooting to obtain the current height of the printed model comprises:
and identifying the characteristic block to obtain the current height of the printed model.
8. The method of claim 1, further comprising:
and setting the characteristic blocks to be parallel to the direction of the current height, wherein the characteristic blocks comprise at least one mark block with a preset length.
9. An electronic device, comprising:
the shooting device is used for shooting the printed model in the 3D printing device;
a memory for storing executable instructions;
a processor configured to execute the electronic device to perform the method according to the control of the instruction, wherein the method is as claimed in any one of claims 1 to 8.
10. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1-8.
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