Method and system for tack welding a liquid crystal panel

Abstract

The application discloses a positioning welding method and system for a liquid crystal screen, positions the liquid crystal screen, identifies the orientation of the liquid crystal screen and the positioning coordinates of the liquid crystal screen, adjusts the orientations of multiple cameras based on the positioning coordinates of the liquid crystal screen, and shoots the liquid crystal screen in different directions to obtain multiple liquid crystal screen images, constructs a three-dimensional model of the liquid crystal screen according to the multiple liquid crystal screen images, at this time, the three-dimensional model of the liquid crystal screen is constructed according to the multiple liquid crystal screen images, so that the welding positions are marked for the three-dimensional model of the liquid crystal screen, the movement track of a welding arm is controlled according to the welding positions and the welding arm, the interaction between the welding positions and the welding arm is controlled, a corresponding welding strategy is triggered based on the distance between a welding head and the welding positions, the welding between the welding head and the welding positions is ensured, and the positioning welding effect of the liquid crystal screen is improved.

Description

Technical Field

[0001] This invention relates to the technical field of liquid crystal displays (LCDs), and more particularly to a positioning and welding method and system for LCDs. Background Technology

[0002] With the development of technology, LCD screens are used in industry and daily life. The LCD screen is transported on a conveyor belt and transferred by the operator at the stop position. At this time, the LCD screen is transferred to the positioning fixture. The operator holds a welding gun and welds the LCD screen at the welding point. However, this behavior mainly relies on manual welding and observation of the welding point, and does not achieve the positioning welding effect of the LCD screen. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a positioning welding method and system for LCD screens. A three-dimensional model of the LCD screen is constructed based on multiple LCD screen images to mark the welding points on the three-dimensional model of the LCD screen. The movement trajectory of the welding point and the welding arm is controlled according to the welding point, and the interaction between the welding point and the welding arm is managed. The corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point, thereby improving the positioning welding effect of the LCD screen.

[0004] To address the aforementioned technical problems, embodiments of the present invention provide a positioning and welding method for liquid crystal displays (LCDs), applicable to LCDs.

[0005] The positioning and welding method for the LCD screen includes:

[0006] Locate the LCD screen and identify its orientation and positioning coordinates;

[0007] The orientation of multiple cameras is adjusted based on the positioning coordinates of the LCD screen, and the LCD screen is photographed from different directions to obtain multiple LCD screen images.

[0008] A 3D model of the LCD screen is constructed based on multiple LCD screen images, and the welding points of the 3D model of the LCD screen are marked according to the orientation of the LCD screen.

[0009] The movement trajectory of the welding arm is controlled based on the welding point of the 3D model on the LCD screen, and the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored.

[0010] During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and the corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point.

[0011] Optionally, the positioning of the LCD screen and the identification of the LCD screen's orientation and positioning coordinates include:

[0012] During the transport of the LCD screen, capture the stopping position of the LCD screen;

[0013] Positioning the LCD screen based on its stopping position;

[0014] Define a spatial coordinate system based on the space where the LCD screen is located, and define the LCD screen's positioning coordinates based on the spatial coordinate system and the LCD screen itself;

[0015] The corresponding image is acquired based on the positioning coordinates of the LCD screen, and the orientation of the LCD screen is identified in the image.

[0016] Optionally, adjusting the orientation of multiple cameras based on the LCD screen's positioning coordinates and capturing images of the LCD screen from different directions to obtain multiple LCD screen images includes:

[0017] The shooting point is defined based on the coordinates of the LCD screen.

[0018] The system triggers and controls multiple cameras located around the shooting point based on the shooting point.

[0019] Adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen;

[0020] Multiple cameras capture images of the LCD screen from different directions, resulting in multiple images of the LCD screen showing different orientations.

[0021] Optionally, the step of constructing a three-dimensional model of the LCD screen based on multiple LCD screen images, and marking the welding points of the three-dimensional model of the LCD screen in conjunction with the orientation of the LCD screen, includes:

[0022] Acquire multiple LCD screen images;

[0023] Based on the recognition of multiple LCD screen images, multiple stereo features are output and the sequence number of the stereo features is marked;

[0024] Assemble multiple 3D features and their serial numbers to construct a 3D model of the LCD screen;

[0025] The 3D model of the LCD screen is traversed, and the welding surfaces of the LCD screen are collected based on the orientation of the LCD screen to mark the welding points of the 3D model of the LCD screen.

[0026] Optionally, the step of constructing a three-dimensional model of the LCD screen based on multiple LCD screen images, and marking the welding points of the three-dimensional model of the LCD screen in conjunction with the orientation of the LCD screen, further includes:

[0027] The process involves iterating through the 3D model of the LCD screen and correcting any non-planar areas within the model to improve its overall appearance.

[0028] Optionally, the movement trajectory of the welding arm is controlled at the welding point of the 3D model based on the LCD screen, and the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored, including:

[0029] The welding points of the 3D model for locating the LCD screen;

[0030] Collect the welding points of the 3D model of the LCD screen and the current position of the welding arm;

[0031] Multiple movement trajectories are formed based on the welding points of the 3D model of the LCD screen and the current position of the welding arm.

[0032] Optionally, the method of controlling the movement trajectory of the welding arm based on the welding point of the 3D model on the LCD screen and monitoring the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen further includes:

[0033] The optimal movement trajectory is defined by integrating multiple movement trajectories to improve movement efficiency and obstacle avoidance.

[0034] The movement of the welding arm is controlled according to the optimal trajectory, and the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored.

[0035] Optionally, during the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, detecting the distance between the welding head and the welding point, and triggering a corresponding welding strategy based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point, includes:

[0036] During the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, the interactive video between the welding head and the welding point is captured.

[0037] The distance between the welding head and the weld joint is defined based on the interactive video between the welding head and the weld joint;

[0038] Distance levels are matched based on the distance between the welding head and the welding area;

[0039] The corresponding welding strategy is triggered based on the distance level to ensure the weld between the weld head and the weld joint.

[0040] Optionally, during the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, detecting the distance between the welding head and the welding point, and triggering a corresponding welding strategy based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point, further includes:

[0041] Obtain the distance level table;

[0042] Establish a corresponding distance table based on the distance level table;

[0043] The distance levels are matched based on the interaction between the distance between the weld head and the weld joint and the distance table.

[0044] In addition, embodiments of the present invention also provide a positioning and welding system for a liquid crystal display screen, the positioning and welding system for the liquid crystal display screen comprising:

[0045] The positioning module is used to locate the LCD screen and identify its orientation and positioning coordinates.

[0046] The image module is used to adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen and to capture images of the LCD screen in different directions to obtain multiple LCD screen images;

[0047] The marking module is used to construct a 3D model of the LCD screen based on multiple LCD screen images, and to mark the welding points of the 3D model of the LCD screen in combination with the orientation of the LCD screen.

[0048] The monitoring module is used to control the movement trajectory of the welding arm based on the welding point of the 3D model on the LCD screen, and to monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen.

[0049] The distance module is used to detect the distance between the welding head and the welding point of the 3D model on the LCD screen during the interaction between the welding head of the welding arm and the welding point. Based on the distance between the welding head and the welding point, the module triggers the corresponding welding strategy to ensure the welding between the welding head and the welding point.

[0050] In this embodiment of the invention, the method described herein involves locating the LCD screen and identifying its orientation and positioning coordinates; adjusting the orientation of multiple cameras based on the LCD screen's positioning coordinates and capturing images of the LCD screen from different directions to obtain multiple LCD screen images; constructing a three-dimensional model of the LCD screen based on the multiple LCD screen images, and marking the welding points of the three-dimensional model of the LCD screen in conjunction with the LCD screen's orientation; controlling the movement trajectory of the welding arm based on the welding points of the three-dimensional model of the LCD screen, and monitoring the interaction process between the welding head of the welding arm and the welding point of the three-dimensional model of the LCD screen; and [further details on the interaction between the welding head of the welding arm and the LCD screen]. During the interaction between the welding points of the 3D model, the distance between the welding head and the welding point is detected, and the corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point. At this time, a 3D model of the LCD screen is constructed based on multiple LCD screen images, so that the welding points can be marked on the 3D model of the LCD screen. Then, the interaction between the welding point and the welding arm is controlled according to the movement trajectory of the welding point and the welding arm. The corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point, thereby improving the positioning welding effect of the LCD screen. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic flowchart of the positioning and welding method for a liquid crystal screen according to an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of the process of S12 in the vehicle lighting according to an embodiment of the present invention;

[0054] Figure 3 This is a schematic diagram of the process of S13 in the vehicle lighting according to an embodiment of the present invention;

[0055] Figure 4 This is a schematic flowchart of S14 in the vehicle lighting process of this invention embodiment;

[0056] Figure 5 This is a schematic diagram of the process of S15 in the driving lighting of this embodiment of the invention;

[0057] Figure 6 This is a schematic diagram of the structural composition of the positioning and welding system for the LCD screen in an embodiment of the present invention;

[0058] Figure 7 This is a hardware diagram of an electronic device according to an exemplary embodiment. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Example

[0061] Please see Figures 1 to 7 A positioning and welding method for an LCD screen, applied to an LCD screen; the positioning and welding method for an LCD screen includes:

[0062] Step S11: Position the LCD screen and identify its orientation and positioning coordinates;

[0063] Step S12: Adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen, and take pictures of the LCD screen in different directions to obtain multiple LCD screen images;

[0064] Step S13: Construct a 3D model of the LCD screen based on multiple LCD screen images, and mark the welding points of the 3D model of the LCD screen in combination with the orientation of the LCD screen.

[0065] Step S14: Adjust the movement trajectory of the welding arm based on the welding point of the 3D model on the LCD screen, and monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen.

[0066] Step S15: During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and the corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point.

[0067] In this embodiment of the invention, the method described herein locates the LCD screen and identifies its orientation and positioning coordinates. Based on these coordinates, the orientations of multiple cameras are adjusted, and images of the LCD screen are captured from different directions to obtain multiple LCD screen images. A three-dimensional model of the LCD screen is constructed based on these images. This three-dimensional model facilitates marking welding points on the LCD screen's three-dimensional model. The interaction between the welding point and the welding arm is controlled based on the welding point and the movement trajectory of the welding arm. A corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure welding between them, thereby improving the positioning and welding effect of the LCD screen.

[0068] In step S11, the LCD screen is positioned, and the orientation and positioning coordinates of the LCD screen are identified;

[0069] In the embodiments of this application, during the transport of the LCD screen, the stopping position of the LCD screen is captured; the LCD screen is positioned based on the stopping position; a spatial coordinate system is defined based on the space where the LCD screen is located, and the LCD screen positioning coordinates are defined according to the spatial coordinate system and the LCD screen; the corresponding image is acquired according to the LCD screen positioning coordinates, and the orientation of the LCD screen is identified in the image.

[0070] At this time, the LCD screen is transported by the conveyor belt and is sensed by the sensor at the end of the conveyor belt so that the LCD screen can be located at the stop position, thereby enabling position control of the LCD screen being transported by the conveyor belt.

[0071] Meanwhile, a spatial coordinate system is defined based on the space where the LCD screen is located, and the LCD screen positioning coordinates are defined according to the spatial coordinate system and the LCD screen; corresponding images are acquired according to the LCD screen positioning coordinates, thereby locating the LCD screen in the image, and then identifying the orientation of the LCD screen in the image, ensuring the stability of the LCD screen orientation recognition.

[0072] In step S12, the orientation of multiple cameras is adjusted based on the positioning coordinates of the LCD screen, and the LCD screen is photographed in different directions to obtain multiple LCD screen images;

[0073] In the specific implementation of this invention, the specific steps can be as follows:

[0074] S121: Define the shooting point based on the positioning coordinates of the LCD screen;

[0075] S122: Trigger multiple cameras located around the shooting point based on the shooting point, and control the multiple cameras located around the shooting point;

[0076] S123: Adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen;

[0077] S124: Multiple cameras capture images of the LCD screen from different directions, obtaining multiple LCD screen images. At this time, the multiple LCD screen images show different directions of the LCD screen.

[0078] In the embodiments of this application, the positioning coordinates of the LCD screen are fixed, and the shooting point is defined based on the positioning coordinates of the LCD screen. Then, multiple cameras around the shooting point are triggered according to the shooting point, and the multiple cameras around the shooting point are controlled. At this time, the multiple cameras around the shooting point are managed and arranged according to the proximity of the shooting point, thereby ensuring dynamic interaction between multiple cameras, and thus responding to multiple cameras in a local area.

[0079] Furthermore, multiple cameras capture images of the LCD screen from different directions, obtaining multiple images of the LCD screen. At this time, the multiple LCD screen images present different directions of the LCD screen, so as to present various features of the LCD screen in different directions, thereby facilitating the subsequent construction of a three-dimensional model of the LCD screen.

[0080] In step S13, a three-dimensional model of the liquid crystal screen is constructed based on multiple liquid crystal screen images, and the welding points of the three-dimensional model of the liquid crystal screen are marked in combination with the orientation of the liquid crystal screen.

[0081] In the specific implementation of this invention, the specific steps can be as follows:

[0082] S131: Acquire images from multiple LCD screens;

[0083] S132: Output multiple stereo features based on the recognition of multiple LCD screen images, and mark the sequence number of the stereo features;

[0084] S133: Assemble multiple three-dimensional features and their serial numbers to construct a three-dimensional model of the LCD screen.

[0085] S134: Traverse the 3D model of the LCD screen and collect the welding surface of the LCD screen in combination with the orientation of the LCD screen to mark the welding points of the 3D model of the LCD screen.

[0086] S135: Traverse the 3D model of the LCD screen and correct the non-planar parts of the 3D model of the LCD screen to improve the 3D model of the LCD screen.

[0087] In the embodiments of this application, multiple LCD screen images are acquired, and multiple stereo features are output based on the recognition of the multiple LCD screen images. Since the LCD screens are presented in different directions, it is convenient to construct the same stereo feature based on multiple directions. Then, multiple stereo features are output based on the recognition of multiple LCD screen images, and the sequence number of the stereo features is marked. The sequence number can be marked sequentially according to the vertical relationship.

[0088] Secondly, multiple 3D features and their serial numbers are assembled to construct a 3D model of the LCD screen; the 3D model of the LCD screen is traversed, and the welding surfaces of the LCD screen are collected in combination with the orientation of the LCD screen to mark the welding points of the 3D model of the LCD screen; the 3D model of the LCD screen is traversed, and the non-planar parts of the 3D model of the LCD screen are corrected to improve the 3D model of the LCD screen.

[0089] S14: Based on the 3D model of the LCD screen, control the movement trajectory of the welding arm and monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model of the LCD screen.

[0090] In the specific implementation of this invention, the specific steps can be as follows:

[0091] S141: The welding point of the 3D model for positioning the LCD screen;

[0092] S142: Collect the welding points of the 3D model of the LCD screen and the current position of the welding arm;

[0093] S143: Multiple movement trajectories are formed based on the welding points of the 3D model of the LCD screen and the current position of the welding arm;

[0094] S144: Define the optimal movement trajectory based on the integration of multiple movement trajectories to improve movement efficiency and obstacle avoidance;

[0095] S145: Control the movement of the welding arm according to the optimal movement trajectory and monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen.

[0096] In the embodiments of this application, the three-dimensional model of the liquid crystal screen is traversed, and the welding points of the three-dimensional model of the liquid crystal screen are found to facilitate the positioning of the welding points of the three-dimensional model of the liquid crystal screen, thereby performing welding positioning in the three-dimensional model of the liquid crystal screen. At this time, the welding points of the three-dimensional model of the liquid crystal screen and the current position of the welding arm are collected; multiple movement trajectories are formed based on the welding points of the three-dimensional model of the liquid crystal screen and the current position of the welding arm.

[0097] At this point, multiple movement trajectories are screened, and factors such as movement efficiency and obstacle avoidance are introduced. Then, based on the integration of movement efficiency and obstacle avoidance factors from multiple movement trajectories, the optimal movement trajectory is defined so that it can be used to improve welding efficiency. At this time, the movement of the welding arm is controlled according to the optimal movement trajectory, and the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored to ensure the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen.

[0098] S15: During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and the corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point.

[0099] In the specific implementation of this invention, the specific steps can be as follows:

[0100] S151: During the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, capture the interactive video between the welding head and the welding point.

[0101] S152: Define the distance between the welding head and the weld joint based on the interactive video between the welding head and the weld joint;

[0102] S153: Distance matching level based on the distance between the weld joint and the weld area;

[0103] S154: Trigger the corresponding welding strategy based on the distance level to ensure the welding between the welding head and the welding point;

[0104] In the embodiments of this application, a three-dimensional model of the LCD screen is constructed based on multiple LCD screen images, so as to mark the welding points on the three-dimensional model of the LCD screen. Then, the interaction between the welding point and the welding arm is controlled according to the movement trajectory of the welding point and the welding arm. Based on the distance between the welding head and the welding point, the corresponding welding strategy is triggered to ensure the welding between the welding head and the welding point, thereby improving the positioning welding effect of the LCD screen.

[0105] At this time, during the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, the interaction video between the welding head and the welding point is captured. The distance between the welding head and the welding point is defined by the interaction video between the welding head and the welding point, so as to control the distance between the welding head and the welding point, and then further calculate the distance between the welding head and the welding point.

[0106] Therefore, distance levels are matched based on the distance between the welding head and the welding point; corresponding welding strategies are triggered according to the distance levels to ensure welding between the welding head and the welding point, thereby improving the positioning and welding effect of the LCD screen.

[0107] During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and a corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point. The method also includes: obtaining a distance level table; establishing a corresponding distance table based on the distance level table; and matching the distance level based on the interaction between the distance between the welding head and the welding point and the distance table.

[0108] In this embodiment of the invention, the method described herein locates the LCD screen and identifies its orientation and positioning coordinates. Based on these coordinates, the orientations of multiple cameras are adjusted, and images of the LCD screen are captured from different directions to obtain multiple LCD screen images. A three-dimensional model of the LCD screen is constructed based on these images. This three-dimensional model facilitates marking welding points on the LCD screen's three-dimensional model. The interaction between the welding point and the welding arm is controlled based on the welding point and the movement trajectory of the welding arm. A corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure welding between them, thereby improving the positioning and welding effect of the LCD screen.

[0109] Example

[0110] Please see Figure 6 , Figure 6 This is a schematic diagram of the structural composition of the positioning and welding system for the liquid crystal screen in an embodiment of the present invention.

[0111] like Figure 6 As shown, a positioning and welding system for an LCD screen includes:

[0112] The positioning module 21 is used to position the LCD screen and identify the orientation and positioning coordinates of the LCD screen.

[0113] Image module 22 is used to adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen and to capture images of the LCD screen in different directions to obtain multiple LCD screen images;

[0114] The marking module 23 is used to construct a three-dimensional model of the LCD screen based on multiple LCD screen images, and to mark the welding points of the three-dimensional model of the LCD screen in combination with the orientation of the LCD screen.

[0115] The monitoring module 24 is used to control the movement trajectory of the welding arm based on the welding point of the 3D model on the LCD screen, and to monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen.

[0116] The distance module 25 is used to detect the distance between the welding head and the welding point during the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, and to trigger the corresponding welding strategy based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point.

[0117] Example

[0118] Please see Figure 7 See below for reference. Figure 7 To describe an electronic device 40 according to this embodiment of the present invention. Figure 7The electronic device 40 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0119] like Figure 7 As shown, the electronic device 40 is manifested in the form of a general-purpose computing device. The components of the electronic device 40 may include, but are not limited to: at least one processing unit 41, at least one storage unit 42, and a bus 43 connecting different system components (including storage unit 42 and processing unit 41).

[0120] The storage unit stores program code, which can be executed by the processing unit 41 to perform the steps described in the "Embodiment Methods" section of this specification according to various exemplary embodiments of the present invention.

[0121] Storage unit 42 may include a readable medium in the form of a volatile storage unit, such as random access memory (RAM) 421 and / or cache memory 422, and may further include a read-only memory (ROM) 423.

[0122] Storage unit 42 may also include a program / utility 424 having a set (at least one) of program modules 425, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0123] Bus 43 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the multiple bus structures.

[0124] Electronic device 40 can also communicate with one or more external devices (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with electronic device 40, and / or with any device that enables electronic device 40 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed through input / output (I / O) interface 44. Furthermore, electronic device 40 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) through network adapter 45. Figure 7 As shown, network adapter 45 communicates with other modules of electronic device 40 via bus 43. It should be understood that, although... Figure 7As not shown, other hardware and / or software modules may be used in conjunction with electronic device 40, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup planning systems.

[0125] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0126] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. This program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. Furthermore, it stores computer program instructions, which, when executed by a computer, cause the computer to perform the methods described above.

[0127] Furthermore, the positioning and welding method and system for LCD screens provided in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for positioning and welding a liquid crystal display screen, characterized in that, Applied to LCD screens; The positioning and welding method for the LCD screen includes: Locate the LCD screen and identify its orientation and positioning coordinates; The orientation of multiple cameras is adjusted based on the positioning coordinates of the LCD screen, and the LCD screen is photographed from different directions to obtain multiple LCD screen images. A 3D model of the LCD screen is constructed based on multiple LCD screen images, and the welding points of the 3D model of the LCD screen are marked according to the orientation of the LCD screen. The movement trajectory of the welding arm is controlled based on the welding point of the 3D model on the LCD screen, and the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored. During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and the corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point. The method of adjusting the orientation of multiple cameras based on the positioning coordinates of the LCD screen and capturing images of the LCD screen in different directions to obtain multiple LCD screen images includes: The shooting point is defined based on the coordinates of the LCD screen. The system triggers and controls multiple cameras located around the shooting point based on the shooting point. Adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen; Multiple cameras capture images of the LCD screen from different directions, resulting in multiple images of the LCD screen showing different orientations.

2. The positioning and welding method for a liquid crystal screen according to claim 1, characterized in that, The process of locating the LCD screen and identifying its orientation and positioning coordinates includes: During the transport of the LCD screen, capture the stopping position of the LCD screen; Positioning the LCD screen based on its stopping position; Define a spatial coordinate system based on the space where the LCD screen is located, and define the LCD screen's positioning coordinates based on the spatial coordinate system and the LCD screen itself; The corresponding image is acquired based on the positioning coordinates of the LCD screen, and the orientation of the LCD screen is identified in the image.

3. The positioning and welding method for a liquid crystal screen according to claim 2, characterized in that, The step of constructing a three-dimensional model of the LCD screen based on multiple LCD screen images, and marking the welding points of the three-dimensional model of the LCD screen in conjunction with the orientation of the LCD screen, includes: Acquire multiple LCD screen images; Based on the recognition of multiple LCD screen images, multiple stereo features are output and the sequence number of the stereo features is marked; Assemble multiple 3D features and their serial numbers to construct a 3D model of the LCD screen; The 3D model of the LCD screen is traversed, and the welding surfaces of the LCD screen are collected based on the orientation of the LCD screen to mark the welding points of the 3D model of the LCD screen.

4. The positioning and welding method for a liquid crystal screen according to claim 3, characterized in that, The step of constructing a three-dimensional model of the LCD screen based on multiple LCD screen images, and marking the welding points of the three-dimensional model of the LCD screen in conjunction with the orientation of the LCD screen, further includes: The process involves iterating through the 3D model of the LCD screen and correcting any non-planar areas within the model to improve its overall appearance.

5. The positioning and welding method for a liquid crystal screen according to claim 4, characterized in that, The process of controlling the movement trajectory of the welding arm at the welding point of the 3D model based on the LCD screen, and monitoring the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, includes: The welding points of the 3D model for locating the LCD screen; Collect the welding points of the 3D model of the LCD screen and the current position of the welding arm; Multiple movement trajectories are formed based on the welding points of the 3D model of the LCD screen and the current position of the welding arm.

6. The positioning and welding method for a liquid crystal display screen according to claim 5, characterized in that, The method of controlling the movement trajectory of the welding arm at the welding point of the 3D model based on the LCD screen, and monitoring the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, also includes: The optimal movement trajectory is defined by integrating multiple movement trajectories to improve movement efficiency and obstacle avoidance. The movement of the welding arm is controlled according to the optimal trajectory, and the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen is monitored.

7. The positioning and welding method for a liquid crystal display screen according to claim 6, characterized in that, During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and a corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point, including: During the interaction between the welding head of the welding arm and the welding point of the 3D model on the LCD screen, the interactive video between the welding head and the welding point is captured. The distance between the welding head and the weld joint is defined based on the interactive video between the welding head and the weld joint; Distance levels are matched based on the distance between the welding head and the welding area; The corresponding welding strategy is triggered based on the distance level to ensure the weld between the weld head and the weld joint.

8. The positioning and welding method for a liquid crystal display screen according to claim 7, characterized in that, During the interaction between the welding head of the welding arm and the welding point of the 3D model of the LCD screen, the distance between the welding head and the welding point is detected, and a corresponding welding strategy is triggered based on the distance between the welding head and the welding point to ensure the welding between the welding head and the welding point. This also includes: Obtain the distance level table; Establish a corresponding distance table based on the distance level table; The distance levels are matched based on the interaction between the distance between the weld head and the weld joint and the distance table.

9. A positioning and welding system for an LCD screen, characterized in that, The positioning and welding system for the liquid crystal display screen is applied to the positioning and welding method for the liquid crystal display screen as described in any one of claims 1-8, and the positioning and welding system for the liquid crystal display screen includes: The positioning module is used to locate the LCD screen and identify its orientation and positioning coordinates. The image module is used to adjust the orientation of multiple cameras based on the positioning coordinates of the LCD screen and to capture images of the LCD screen in different directions to obtain multiple LCD screen images; The marking module is used to construct a 3D model of the LCD screen based on multiple LCD screen images, and to mark the welding points of the 3D model of the LCD screen in combination with the orientation of the LCD screen. The monitoring module is used to control the movement trajectory of the welding arm based on the welding point of the 3D model on the LCD screen, and to monitor the interaction process between the welding head of the welding arm and the welding point of the 3D model on the LCD screen. The distance module is used to detect the distance between the welding head and the welding point of the 3D model on the LCD screen during the interaction between the welding head of the welding arm and the welding point. Based on the distance between the welding head and the welding point, the module triggers the corresponding welding strategy to ensure the welding between the welding head and the welding point.

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