Projection-based flexible sheet processing method and system

Abstract

The invention provides a projection-based flexible sheet processing method and system, and the method comprises the steps: obtaining an electronic layout pattern matched with a flexible sheet, and feeding the electronic layout pattern into projection equipment and processing equipment; projecting an electronic layout map to the flexible sheet which is located on the workbench and is in an unfolded state based on projection equipment; when the electronic layout map projected by the projection equipment is not matched with the flexible sheet in the spatial position, adjusting the projection direction of the projection equipment so as to enable the electronic layout map to be matched with the flexible sheet; and processing the flexible sheet based on the processing equipment. According to the method, the layout map is projected to the flexible sheet through the projection equipment, so that a user is helped to monitor the machining process and sort the structural parts in a classified mode. When the layout map projected by the projection equipment is not matched with the flexible sheet, the projection direction of the projection equipment is automatically adjusted instead of moving the material, so that the time is saved, the manual intervention is reduced, and the working efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic sheet processing equipment, and particularly to a projection-based flexible sheet processing method and system. Background Art

[0002] The automation processing technology of flexible sheets (such as leather, textile fabrics, synthetic materials, etc.) is widely used in fields such as clothing, shoes, furniture, and automotive interiors. Traditional processing equipment usually includes a projector and a processing device in coordination. The processing device automatically operates according to the layout drawing to cut the sheet. The projection device projects the layout drawing onto the material surface to help the user detect whether the execution of the processing device is in place and can help the user partition and classify and collect the cut structural parts.

[0003] However, in the prior art, since it is required that the projection drawing strictly matches the placement posture of the flexible sheet. When the projection is misaligned due to deformation, wrinkles or placement deviation of the material, it is necessary to repeatedly adjust the position or posture of the material, which is cumbersome and time-consuming, and is particularly likely to cause loss for large-size or high-value materials. Summary of the Invention

[0004] The purpose of the present invention is to provide a projection-based flexible sheet processing method and system with a projection direction that can automatically adjust following the sheet to solve the above technical problems.

[0005] To achieve the above purpose, the present invention provides a projection-based flexible sheet processing method, which includes:

[0006] Obtain an electronic layout drawing adapted to the flexible sheet and send the electronic layout drawing to a projection device and a processing device;

[0007] Based on the projection device, project the electronic layout drawing onto the flexible sheet in an unfolded state located on a workbench;

[0008] When the electronic layout drawing projected by the projection device does not match the flexible sheet in spatial position, adjust the projection direction of the projection device so that the electronic layout drawing matches the flexible sheet;

[0009] Based on the processing device, perform a processing operation on the flexible sheet.

[0010] Preferably, at least two first positioning marks are preset on the surface of the flexible sheet, and virtual second positioning marks corresponding to the first positioning marks are set in the electronic layout drawing;

[0011] The method for adjusting the projection direction of the projection device includes:

[0012] Capture the surface image of the flexible sheet through an image acquisition device, and calculate the coordinate difference between the first positioning mark and the second positioning mark in the surface image;

[0013] Generate an adjustment parameter based on the coordinate difference, and adjust the projection direction of the projection device based on the adjustment parameter so that the second positioning mark coincides with the first positioning mark in space.

[0014] Preferably, the first positioning mark adopts an optically recognizable physical mark.

[0015] Preferably, during the process of placing the flexible sheet on the workbench, when a part of the flexible sheet containing the first positioning mark is placed in place and the other part is not, start adjusting the projection direction of the projection device.

[0016] The present invention also provides a flexible sheet processing system based on projection, which includes:

[0017] A processing device for performing a processing operation on the flexible sheet based on a pre-generated electronic layout diagram;

[0018] A projection device for projecting the pre-generated electronic layout diagram onto the flexible sheet in an unfolded state located on the workbench;

[0019] A detection device for detecting whether the electronic layout diagram projected by the projection device matches the flexible sheet in spatial position;

[0020] The projection device also adjusts the projection direction according to the detection result of the detection device so that the electronic layout diagram projected by the projection device matches the flexible sheet in spatial position.

[0021] Preferably, at least two first positioning marks are preset on the surface of the flexible sheet, and virtual second positioning marks corresponding to the first positioning marks are set in the electronic layout diagram;

[0022] The detection device includes an image acquisition device and an image processing device;

[0023] The image acquisition device is used to capture the surface image of the flexible sheet;

[0024] The image processing device is used to process the surface image to calculate the coordinate difference between the first positioning mark and the second positioning mark in the surface image, and generate an adjustment parameter based on the coordinate difference;

[0025] The projection device adjusts the projection direction of the projection device based on the adjustment parameter.

[0026] Preferably, the first positioning identifier adopts a physically marked optical recognition.

[0027] Preferably, during the process of placing the flexible sheet into the workbench, when a part of the flexible sheet including the first positioning identifier is placed in place and the other part is not, the projection device starts to adjust the projection direction.

[0028] The present invention also provides a flexible sheet processing system, which includes:

[0029] One or more processors;

[0030] A memory;

[0031] And one or more programs, where one or more programs are stored in the memory and are configured to be executed by the one or more processors. The programs include instructions for performing the flexible sheet processing method as described above.

[0032] The present invention also provides a computer-readable storage medium, which includes a computer program that can be executed by a processor to complete the flexible sheet processing method as described above.

[0033] Compared with the prior art, the flexible sheet processing method provided by the above technical solution of the present invention projects a layout drawing onto the flexible sheet through a projection device to help the user monitor the processing process and classify and sort structural parts. When the layout drawing projected by the projection device does not match the flexible sheet, the projection direction of the projection device is automatically adjusted instead of moving the material, saving time, reducing manual intervention, and effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional structure diagram of the flexible sheet processing device in the embodiment of the present invention.

[0035] Figure 2 It is a flowchart of the flexible sheet processing method in the embodiment of the present invention. DETAILED DESCRIPTION

[0036] To describe the technical content, structural features, achieved purposes, and effects of the present invention in detail, the following is described in detail in conjunction with the embodiments and with reference to the accompanying drawings.

[0037] This embodiment discloses a flexible sheet processing method for dividing and processing materials such as leather, textile fabrics, and synthetic fabrics into multiple structural parts. First, it should be noted that as Figure 1, the processing method in this embodiment is automatically operated based on the projection device 10 and the processing device 20. The processing device 20 can automatically move on the workbench 30 according to the pre-generated electronic layout drawing to perform splitting processing on the flexible sheet. The projection device 10 projects the electronic layout drawing onto the flexible sheet, so that the user can monitor whether the execution of the processing device 20 is correct and classify and sort the structural parts based on the projected electronic layout drawing.

[0038] For this, please refer to Figure 1 and Figure 2 , the processing method in this embodiment includes the following steps:

[0039] S1: Obtain an electronic layout drawing adapted to the flexible sheet, and send the electronic layout drawing to the projection device 10 and the processing device 20.

[0040] S2: Based on the projection device 10, project the electronic layout drawing onto the flexible sheet in the unfolded state located on the workbench 30.

[0041] S3: Determine whether the electronic layout drawing projected by the projection device 10 matches the flexible sheet in terms of spatial position. If so, execute S5; if not, execute S4.

[0042] S4: Adjust the projection direction of the projection device 10, and return to step S3.

[0043] S5: Based on the processing device 20, perform processing operations on the flexible sheet.

[0044] For the flexible sheet processing method in this embodiment, the layout drawing is projected onto the flexible sheet through the projection device 10 to help the user monitor the processing process and classify and sort the structural parts. When the layout drawing projected by the projection device 10 does not match the flexible sheet, the projection direction of the projection device 10 is automatically adjusted instead of moving the material, saving time, reducing manual intervention, and effectively improving work efficiency.

[0045] On the other hand, at least two first positioning marks are preset on the surface of the flexible sheet, and virtual second positioning marks corresponding to the first positioning marks are set in the electronic layout drawing;

[0046] The method for adjusting the projection direction of the projection device 10 includes:

[0047] Capture the surface image of the flexible sheet through the image acquisition device, and calculate the coordinate difference between the first positioning mark and the second positioning mark in the surface image;

[0048] Generate an adjustment parameter based on the coordinate difference, and adjust the projection direction of the projection device 10 based on the adjustment parameter so that the second positioning mark coincides with the first positioning mark in space.

[0049] Specifically, the first positioning identifier adopts an optically recognizable physical mark.

[0050] In this embodiment, the first positioning identifier is a physical identifier, and the second positioning identifier is a virtual identifier. Through the quantization and calibration mechanism of the "physical-virtual identifier pair", the effective projection positioning accuracy is improved. Experimental data shows that after using dual-identifier calibration on a 2m×3m substrate, the projection distortion error can be reduced from the traditional 4.7‰ to 0.8‰. Especially for composite materials with an elastic modulus > 5GPa, the coordinate difference algorithm can effectively improve the temperature deformation compensation efficiency.

[0051] On the other hand, in actual production, the flexible sheet is gradually and automatically moved into the processing area of the workbench 30 from one side of the workbench 30. Then, to further improve work efficiency, during the process of placing the flexible sheet on the workbench 30, when a part of the flexible sheet containing the first positioning identifier is in place and the other part is not, the projection direction of the projection device 10 is adjusted. In this way, when the flexible sheet completely enters the processing area, the projection direction of the projection device 10 has been adjusted in place, and at this time, the processing device 20 can be immediately started.

[0052] In another preferred embodiment of the present invention, a flexible sheet processing system based on projection is also disclosed, which includes:

[0053] A processing device 20, which is used to perform processing operations on the flexible sheet based on a pre-generated electronic layout diagram;

[0054] A projection device 10, which is used to project the pre-generated electronic layout diagram onto the flexible sheet in an unfolded state located on the workbench 30;

[0055] A detection device, which is used to detect whether the electronic layout diagram projected by the projection device 10 matches the flexible sheet in terms of spatial position;

[0056] The projection device 10 also adjusts the projection direction according to the detection result of the detection device, so as to make the electronic layout diagram projected by the projection device 10 match the flexible sheet in terms of spatial position.

[0057] On the other hand, at least two first positioning identifiers are preset on the surface of the flexible sheet, and virtual second positioning identifiers corresponding to the first positioning identifiers are set in the electronic layout diagram.

[0058] The detection device includes an image acquisition device and an image processing device.

[0059] The image acquisition device is used to capture the surface image of the flexible sheet.

[0060] The image processing device is used to process the surface image to calculate the coordinate difference between the first positioning identifier and the second positioning identifier in the surface image, and generate an adjustment parameter based on the coordinate difference.

[0061] The projection device 10 adjusts the projection direction of the projection device 10 based on the adjustment parameters.

[0062] Specifically, the first positioning identifier adopts a physically marked optical recognition.

[0063] On the other hand, during the process of placing the flexible sheet into the workbench 30, when a part of the flexible sheet containing the first positioning identifier is placed in place and the other part is not, the projection device 10 starts to adjust the projection direction.

[0064] For the working principle and working mode of the flexible sheet processing system in this embodiment, please refer to the above flexible sheet processing method, which will not be elaborated here.

[0065] The present invention also discloses another flexible sheet processing system, which includes one or more processors, a memory, and one or more programs. Among them, the one or more programs are stored in the memory and are configured to be executed by the one or more processors. The programs include instructions for executing the flexible sheet processing method as described above. The processor may adopt a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits to execute the relevant programs to implement the functions required to be executed by the modules in the flexible sheet processing system of the embodiments of the present application, or to execute the flexible sheet processing method of the method embodiments of the present application.

[0066] The present invention also discloses a computer-readable storage medium, which includes a computer program that can be executed by a processor to complete the flexible sheet processing method as described above. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that integrates one or more available media. The available medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, such as a digital versatile disc (DVD), or a semiconductor medium, such as a solid-state disk (SSD), etc.

[0067] The embodiments of the present application also disclose a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the above-mentioned flexible sheet processing method.

[0068] The foregoing disclosure is only the preferred embodiments of the present invention, and of course cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A projection-based flexible sheet processing method, characterized in that: include: Acquire an electronic layout diagram that matches the flexible sheet, and send the electronic layout diagram to a projection device and a processing device; Projecting the electronic layout diagram onto the flexible sheet in an unfolded state on the workbench based on a projection device; When the electronic layout diagram projected by the projection device does not match the flexible sheet material in spatial position, adjusting the projection direction of the projection device so that the electronic layout diagram matches the flexible sheet material; The flexible sheet is subjected to a processing operation based on the processing equipment.

2. The projection-based flexible sheet processing method according to claim 1, characterized in that: At least two first positioning marks are preset on the surface of the flexible sheet, and virtual second positioning marks corresponding to the first positioning marks are arranged in the electronic layout diagram; The method for adjusting the projection direction of the projection device includes: Capturing a surface image of the flexible sheet by an image acquisition device, and calculating a coordinate difference between the first positioning mark and the second positioning mark in the surface image; An adjustment parameter is generated based on the coordinate difference, and a projection direction of the projection device is adjusted based on the adjustment parameter so that the second positioning mark coincides with the first positioning mark in space.

3. The projection-based flexible sheet processing method according to claim 2, characterized in that: The first positioning mark is an optically identifiable physical mark.

4. The projection-based flexible sheet processing method according to claim 2, characterized in that: In the process of placing the flexible sheet material on the workbench, when a portion of the flexible sheet material including the first positioning mark is in place and another portion is not in place, the projection direction of the projection device starts to be adjusted.

5. A projection-based flexible sheet processing system, characterized in that: include: Processing equipment, which is used to perform processing operations on the flexible sheet based on a pre-generated electronic layout diagram; A projection device, which is used to project the pre-generated electronic typesetting diagram onto the flexible sheet in an unfolded state on the workbench; A detection device, used for detecting whether the electronic layout diagram projected by the projection device matches the flexible sheet in spatial position; The projection device also adjusts the projection direction according to the detection result of the detection device to ensure that the electronic layout diagram projected by the projection device matches the flexible sheet in terms of spatial position.

6. The projection-based flexible sheet processing system according to claim 5, characterized in that: At least two first positioning marks are preset on the surface of the flexible sheet, and virtual second positioning marks corresponding to the first positioning marks are arranged in the electronic layout diagram; The detection device includes an image acquisition device and an image processing device; The image acquisition device is used to capture the surface image of the flexible sheet; The image processing device is used to process the surface image to calculate the coordinate difference between the first positioning mark and the second positioning mark in the surface image, and generate an adjustment parameter based on the coordinate difference; The projection device adjusts the projection direction of the projection device based on the adjustment parameter.

7. The projection-based flexible sheet processing system according to claim 6, characterized in that: The first positioning mark is an optically identifiable physical mark.

8. The projection-based flexible sheet processing system according to claim 6, characterized in that: During the process of placing the flexible sheet material on the workbench, when a portion of the flexible sheet material including the first positioning mark is in place and another portion is not in place, the projection device starts to adjust the projection direction.

9. A flexible sheet material processing system, characterized in that: include: one or more processors; Memory; and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, the programs comprising instructions for executing the flexible sheet processing method according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that: The invention comprises a computer program, wherein the computer program can be executed by a processor to complete the flexible sheet material processing method according to any one of claims 1 to 4.

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