Mini-LED box structure splicing system and error compensation method

Abstract

The invention discloses a Mini-LED box structure splicing system and an error compensation method, and relates to the technical field of display equipment, and the splicing system realizes nanoscale mechanical deviation compensation and active thermal deformation offset through a piezoelectric ceramic actuator of a compensation execution module and a shape memory alloy grid layer. Multi-source sensor fusion of the parameter sensing module and a machine vision system are combined to monitor splicing precision and environmental interference in real time, a six-degree-of-freedom spherical hinge plug and an electromagnetic self-adaptive locking piece which are connected with the execution module are used for dynamically eliminating assembly deviation and vibration influence, and finally the cooperative control module cooperates with all the modules to form intelligent closed-loop control. The problems of static splicing seams, dynamic height difference, installation stress deformation and the like in a traditional scheme can be effectively solved, the ultra-high precision that the width of the splicing seams is smaller than or equal to 0.1 mm and the flatness tolerance is + / -0.05 mm / m < 2 > is achieved, meanwhile, the installation efficiency is remarkably improved, and a stable splicing foundation under the cross-scale and multi-physics field coupling environment is provided for the micro-spacing Mini-LED display screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, in particular to a Mini-LED box structure splicing system and error compensation method. BACKGROUND

[0002] As a new generation of display technology, the high-density pixel (P0.9-P1.5) characteristics of the Mini-LED display screen put forward extreme requirements on the box splicing accuracy.

[0003] At present, the industry generally adopts module-level flatness control combined with box mechanical positioning scheme, but there are still problems such as static splicing joint, dynamic height difference, installation stress deformation, etc. in large-size splicing scenarios. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a Mini-LED box structure splicing system and error compensation method, aiming at solving the above-mentioned problems recorded in the prior art.

[0005] The first aspect of the present application is to provide a Mini-LED box structure splicing system, which comprises: A compensation execution module is used to actively compensate for mechanical deviation and thermal deformation deviation in the Mini-LED box structure splicing process; A parameter sensing module is used to collect splicing accuracy parameters and environmental interference parameters in real time during the Mini-LED box structure splicing process; A connection execution module is used to compensate for box assembly deviation and realize locking after splicing; A cooperative control module is electrically connected with the compensation execution module, the parameter sensing module and the connection execution module, respectively, and drives the compensation execution module and the connection execution module to act according to the data collected by the parameter sensing module, so as to form a closed-loop control.

[0006] According to one aspect of the above technical solution, the compensation execution module comprises a promoting assembly and a thermal compensation assembly; The promoting assembly is arranged at the corner position of the Mini-LED box structure, and is used to realize displacement adjustment with micron-level and below accuracy in Z direction; The thermal compensation assembly is arranged on the back plate of the box, and is used to compensate for the thermal expansion difference between different materials through its own deformation.

[0007] According to one aspect of the above technical solution, the actuation component includes piezoelectric ceramic actuators, which are integrated one-to-one at the four corners of the Mini-LED housing structure, and each piezoelectric ceramic actuator is independently controlled.

[0008] According to one aspect of the above technical solution, the thermal compensation component includes a shape memory alloy mesh layer, which is made of Ni-Ti alloy and has a rhombic topology. The size of a single mesh cell in the rhombic topology is 2mm × 2mm.

[0009] According to one aspect of the above technical solution, the parameter sensing module includes a visual detection unit and a multi-parameter sensing unit; The visual inspection unit is used to scan the splicing seams of the Mini-LED cabinet structure and generate splicing accuracy parameters and three-dimensional morphology data. The multi-parameter sensing unit is used to collect in real time the ambient temperature, vibration frequency, and locking force parameters of the connection execution module during the splicing process of the Mini-LED cabinet structure.

[0010] According to one aspect of the above technical solution, the visual inspection unit includes a camera assembly and a structured light assembly, with a scanning frequency of 30Hz and a splicing seam curvature detection accuracy Δκ < 0.01mm. -1 ; The multi-parameter sensing unit includes a temperature sensor, a vibration sensor, and a torque sensor, and the torque sensor is integrated into the connection execution module.

[0011] According to one aspect of the above technical solution, the connection execution module includes an angle compensation component and an adaptive locking component; The angle compensation component is used to compensate for the angle deviation generated during the assembly of the housing, and the adaptive locking component is used to dynamically adjust the locking force according to the environmental interference parameters monitored by the parameter sensing module.

[0012] According to one aspect of the above technical solution, the angle compensation component is a six-degree-of-freedom ball joint plug; The adaptive locking device is an electromagnetic locking pin, and a torque sensor is integrated on the electromagnetic locking pin.

[0013] A second aspect of the present invention provides an error compensation method for a Mini-LED cabinet structure splicing system, applied to the splicing system described in the above-mentioned technical solution, the error compensation method comprising: When the system is powered on and initialized, the parameter sensing module starts up, controls the visual detection unit to scan the splicing seam of the Mini-LED cabinet structure to generate sub-pixel level 3D point cloud data, and controls the multi-parameter sensing unit to synchronously collect ambient temperature, vibration frequency and locking force parameters. The collaborative control module receives 3D point cloud data and environmental interference parameters collected by the parameter sensing module, analyzes and processes the 3D point cloud data, and calculates the height difference and angle deviation at the splicing point. The collaborative control module drives the compensation execution module and the connection execution module to perform coordinated actions based on the calculated deviation parameters and the collected environmental interference parameters.

[0014] According to one aspect of the above technical solution, when the height difference is greater than a preset position deviation threshold, the actuation component in the compensation execution module is driven to perform Z-direction displacement compensation. When the ambient temperature is greater than the preset temperature threshold, the thermal compensation component in the compensation execution module is activated to generate compensation strain. When the vibration frequency is detected to be within the preset vibration range, the locking force of the adaptive fastener in the connection execution module is adjusted to form a dynamic compensation closed loop.

[0015] Compared with existing technologies, the advantages of using the Mini-LED cabinet structure splicing system and error compensation method shown in this invention are as follows: This invention achieves nanoscale mechanical deviation compensation and active thermal deformation cancellation through the piezoelectric ceramic actuator and shape memory alloy mesh layer of the compensation execution module. Combined with multi-source sensor fusion in the parameter sensing module and real-time monitoring of splicing accuracy and environmental interference by a machine vision system, it dynamically eliminates assembly deviations and vibration effects using a six-degree-of-freedom ball joint connector and electromagnetic adaptive locking fasteners connecting the execution module. Finally, a collaborative control module coordinates all modules to form an intelligent closed-loop control, effectively solving problems such as static splicing seams, dynamic height differences, and installation stress deformation in traditional solutions. It achieves a splicing seam width ≤0.1mm and a flatness tolerance of ±0.05mm / m. 2 While achieving ultra-high precision, it significantly improves installation efficiency, providing a stable splicing foundation for micro-pitch Mini-LED displays in cross-scale, multi-physics coupling environments. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural block diagram of a Mini-LED cabinet splicing system according to an embodiment of the present invention; Figure 2This is a structural block diagram of an error compensation method for a Mini-LED cabinet splicing system according to an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0018] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Example 1 Please see Figure 1 The first embodiment of the present invention provides a Mini-LED cabinet structure splicing system, the splicing system comprising: The compensation execution module 10 is used to actively compensate for mechanical deviations and thermal deformation deviations during the assembly process of the Mini-LED cabinet structure.

[0021] In this embodiment, the compensation execution module 10 includes an actuation component and a thermal compensation component; The actuation component is located at the corner of the Mini-LED housing structure to achieve displacement adjustment with micron-level and below precision in the Z direction; the thermal compensation component is located on the back plate of the housing to compensate for the thermal expansion difference between different materials through its own deformation.

[0022] The actuation component includes piezoelectric ceramic actuators, which are integrated one-to-one at the four corners of the Mini-LED housing structure, and each piezoelectric ceramic actuator is independently controlled.

[0023] The thermal compensation component includes a shape memory alloy mesh layer, which is made of Ni-Ti alloy and has a rhomboid topology. The size of a single mesh cell in the rhomboid topology is 2mm × 2mm.

[0024] Specifically, in this embodiment, the structural design of the compensation execution module 10 is the core of achieving high-precision splicing. The piezoelectric ceramic actuator, as the key execution element of the actuation component, utilizes its inverse piezoelectric effect to achieve nanometer-level displacement accuracy. Each piezoelectric ceramic actuator is independently integrated at the four corners of the box, which can achieve multi-degree-of-freedom precise adjustment of the box's posture. It can not only compensate for Z-axis height deviation, but also correct the box's minute tilt deformation through the unequal height adjustment of the four corners.

[0025] The thermal compensation component in the aforementioned compensation execution module 10 includes a shape memory alloy mesh layer, specifically a Ni-Ti alloy, which possesses unique shape memory effect and superelastic properties. When the ambient temperature reaches its phase transformation point, a martensitic phase transformation occurs within the alloy, generating predictable deformation. Furthermore, the shape memory alloy mesh layer employs a rhombic topology design, maximizing strain transfer efficiency while ensuring mechanical properties. The 2mm×2mm mesh unit size within the rhombic topology is precisely calculated, ensuring sufficient in-plane resolution for local deformation compensation while avoiding manufacturing challenges caused by excessively small mesh sizes.

[0026] More specifically, piezoelectric ceramic actuators are mainly used to address micron-level deviations caused by machining errors and assembly stresses, while shape memory alloy layers are used to handle hundreds of micron-level deformations caused by thermal environments.

[0027] In actual operation, piezoelectric ceramic actuators have millisecond-level response speeds, enabling them to track and compensate for dynamic disturbances such as vibrations in real time. Meanwhile, the phase change response time of the shape memory alloy layer is in the second range, effectively matching the relatively slow process of thermal change.

[0028] In this embodiment, the splicing system also includes a parameter sensing module 20, which is used to collect splicing accuracy parameters and environmental interference parameters in real time during the splicing process of the Mini-LED cabinet structure. The parameter sensing module 20 includes a visual detection unit and a multi-parameter sensing unit. The visual inspection unit is used to scan the splicing seams of the Mini-LED cabinet structure and generate splicing accuracy parameters and three-dimensional morphology data. The multi-parameter sensing unit is used to collect in real time the ambient temperature, vibration frequency, and locking force parameters of the connection execution module during the splicing process of the Mini-LED cabinet structure.

[0029] The visual inspection unit includes a camera assembly and a structured light assembly, with a scanning frequency of 30Hz and a seam curvature detection accuracy Δκ < 0.01mm. -1 ; The multi-parameter sensing unit includes a temperature sensor, a vibration sensor, and a torque sensor, and the torque sensor is integrated into the connection execution module.

[0030] Specifically, in this embodiment, the parameter perception module 20 serves as the sensory nervous system of the splicing system. The visual detection unit within the parameter perception module 20 employs a camera assembly in conjunction with a high-precision structured light projector, i.e., the aforementioned structured light assembly, to form a stereoscopic vision system. Using a scanning frequency of, for example, 30Hz, it can effectively capture minute deformations during the dynamic splicing process. Through phase shift analysis and triangulation principles, it can reconstruct sub-millimeter-level 3D point cloud data of the splicing seam area in real time, with a curvature detection accuracy Δκ < 0.01mm. -1 The high accuracy means that the scanning process can identify extremely subtle surface distortions, providing a data foundation for subsequent accuracy compensation.

[0031] The multi-parameter sensing unit in the parameter sensing module 20 adopts a distributed sensor network architecture, including a temperature sensor, a vibration sensor, and a torque sensor. The temperature sensor, for example, uses a platinum resistance temperature detector, with a measurement range covering an operating environment of -40℃ to 125℃ and an accuracy of ±0.5℃. The vibration sensor, for example, can use a MEMS triaxial accelerometer, capable of detecting mechanical vibrations in the frequency range of 5-2000Hz, with a sensitivity of 100mV / g.

[0032] It should be noted that the torque sensor is made based on the strain gauge principle. By directly embedding it into the internal structure of the electromagnetic locking pin, it achieves real-time in-situ measurement of the locking force parameter, avoiding the measurement errors caused by traditional external sensors.

[0033] More specifically, the parameter sensing module 20 ensures that visual data and sensor data have a unified spatiotemporal reference through a dual synchronization mechanism of hardware trigger signals and software timestamps. This enables the accurate establishment of the correlation between changes in environmental parameters and mechanical deformation, providing reliable data support for intelligent decision-making. For example, when the temperature sensor detects an increase in temperature, it can combine visual data to observe the changes in the splicing seam caused by thermal expansion, thereby establishing a corresponding temperature-deformation mapping model.

[0034] In this embodiment, the splicing system also includes a connection execution module 30, which is used to compensate for assembly deviations of the housing and to achieve locking after splicing; The connection execution module 30 includes an angle compensation component and an adaptive locking component; The angle compensation component is used to compensate for the angle deviation generated during the assembly of the housing, and the adaptive locking component is used to dynamically adjust the locking force according to the environmental interference parameters monitored by the parameter sensing module.

[0035] The angle compensation component is a six-degree-of-freedom ball joint plug; The adaptive locking device is an electromagnetic locking pin, and a torque sensor is integrated on the electromagnetic locking pin.

[0036] Specifically, in this embodiment, the connection execution module 30 serves as the mechanical connection core of the system, and the six-degree-of-freedom ball joint plug serves as an angle compensation component. Its internal structure adopts a high-precision bearing steel ball socket structure, combined with a tungsten carbide ball head, to achieve a deflection range of ±2° and a translation compensation capability of ±1mm. This allows for a large attitude deviation of the housing during initial assembly. The adaptive adjustment of the ball joint absorbs the installation stress, creating the best initial conditions for subsequent precision leveling.

[0037] The electromagnetic locking pin, as an adaptive locking device, uses a precision transmission structure driven by a brushless DC motor and a harmonic reducer to output an adjustable torque range of 0.1-20 N·m. Its integrated torque sensor is based on the strain gauge principle and uses a Wheatstone bridge structure, with a measurement accuracy of ±0.05%FS, which can provide real-time feedback on the actual locking force value.

[0038] In this embodiment, the splicing system also includes a collaborative control module 40, which is electrically connected to the compensation execution module 10, the parameter sensing module 20, and the connection execution module 30, respectively. The collaborative control module 40 drives the compensation execution module 10 and the connection execution module 30 to operate based on the data collected by the parameter sensing module 20, so as to form a closed-loop control.

[0039] Specifically, in this embodiment, the collaborative control module 40 serves as the intelligent hub of the entire system, employing a distributed architecture design and consisting of a master controller (MCU) and multiple slave controllers (drive units). The core innovation of the collaborative control module 40 lies in its multivariable collaborative control algorithm, which uses a Kalman filter to fuse multi-source data collected by the parameter sensing module to establish a dynamic mathematical model of the box's attitude.

[0040] In some feasible embodiments, the collaborative control module 40 also possesses adaptive learning capabilities. The system has a built-in digital twin model, which automatically corrects model parameters by continuously comparing actual measurement data with model prediction results, thereby achieving online optimization of the control algorithm. For example, when performance degradation of the piezoelectric ceramic actuator is detected, the control parameters are automatically adjusted to compensate for the impact of actuator performance changes, ensuring the stability of control accuracy during long-term use.

[0041] Compared with existing technologies, the advantages of using the Mini-LED cabinet structure splicing system shown in this embodiment are as follows: This embodiment achieves nanoscale mechanical deviation compensation and active thermal deformation cancellation through the piezoelectric ceramic actuator and shape memory alloy mesh layer of the compensation execution module. Combined with multi-source sensor fusion from the parameter sensing module and real-time monitoring of splicing accuracy and environmental interference by the machine vision system, it dynamically eliminates assembly deviations and vibration effects using a six-degree-of-freedom ball joint connector and electromagnetic adaptive locking fasteners connecting the execution module. Finally, a collaborative control module coordinates all modules to form an intelligent closed-loop control, effectively solving problems such as static splicing seams, dynamic height differences, and installation stress deformation in traditional solutions. It achieves a splicing seam width ≤ 0.1mm and a flatness tolerance of ±0.05mm / m. 2 While achieving ultra-high precision, it significantly improves installation efficiency, providing a stable splicing foundation for micro-pitch Mini-LED displays in cross-scale, multi-physics coupling environments.

[0042] Example 2 Please see Figure 2 The second embodiment of the present invention provides an error compensation method for a Mini-LED cabinet structure splicing system, applied to the splicing system described in the above embodiments. The error compensation method includes steps S10-S30: Step S10: When the system is powered on and initialized, the parameter sensing module is started, and the vision detection unit is controlled to scan the splicing seam of the Mini-LED box structure to generate sub-pixel level 3D point cloud data, and the multi-parameter sensing unit is controlled to synchronously collect ambient temperature, vibration frequency and locking force parameters. Step S20: The collaborative control module receives 3D point cloud data and environmental interference parameters collected by the parameter perception module, analyzes and processes the 3D point cloud data, and calculates the height difference and angle deviation at the splicing point. Step S30: The collaborative control module drives the compensation execution module and the connection execution module to perform collaborative actions based on the calculated deviation parameters and the collected environmental interference parameters.

[0043] When the height difference is greater than the preset position deviation threshold, the actuation component in the compensation execution module is driven to perform Z-axis displacement compensation. When the ambient temperature is greater than the preset temperature threshold, the thermal compensation component in the compensation execution module is activated to generate compensation strain. When the vibration frequency is detected to be within the preset vibration range, the locking force of the adaptive fastener in the connection execution module is adjusted to form a dynamic compensation closed loop.

[0044] Specifically, in this embodiment, in the above error compensation method, the collaborative control module uses a point cloud registration algorithm based on feature point matching to process 3D point cloud data. It calculates the relative pose of adjacent box splicing surfaces through an iterative nearest point algorithm, and finally outputs sub-pixel level height difference ΔH and angle deviation Δθ parameters, with a calculation accuracy of ±0.01mm.

[0045] At the compensation decision level, when the height difference ΔH > 0.05 mm, the collaborative control module generates a driving voltage signal for the piezoelectric ceramic actuators based on a PID control algorithm. This signal is then used to drive four actuators to achieve nanometer-level collaborative displacement via a high-voltage amplifier, with a response time of no more than 10 ms. The temperature compensation strategy employs a feedforward-feedback composite control method. When the ambient temperature > 50℃, it not only activates the shape memory alloy mesh layer to generate pre-strain based on the current temperature value but also combines the temperature change rate to predict the thermal deformation trend for proactive compensation.

[0046] The dynamic locking force adjustment under vibration environment adopts an adaptive control algorithm. By establishing a mathematical model of vibration frequency f and optimal locking force F_lock, F_lock=10+0.5·log(f), when vibration of 5-500Hz is detected, the target locking force is calculated in real time and the drive current of the electromagnetic locking pin is precisely adjusted by the PID controller, and the torque control accuracy reaches ±0.1N·m.

[0047] The method described in this embodiment achieves multi-timescale compensation coordination. The piezoelectric ceramic compensation is suitable for millisecond-level rapid disturbances, the shape memory alloy compensation targets second-level thermal changes, and the electromagnetic locking force adjustment is used to cope with continuous environmental vibrations. These three compensation mechanisms achieve seamless coordination through the scheduling algorithm of the collaborative control module, forming an error suppression capability across the entire time and space domain.

[0048] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A Mini-LED cabinet structure splicing system, characterized in that, The splicing system includes: The compensation execution module is used to actively compensate for mechanical deviations and thermal deformation deviations during the assembly process of the Mini-LED cabinet structure. The parameter sensing module is used to collect splicing accuracy parameters and environmental interference parameters in real time during the splicing process of the Mini-LED cabinet structure; A connection execution module is used to compensate for assembly deviations of the housing and to achieve locking after splicing. The collaborative control module is electrically connected to the compensation execution module, the parameter sensing module, and the connection execution module, respectively. The collaborative control module drives the compensation execution module and the connection execution module to act based on the data collected by the parameter sensing module, so as to form a closed-loop control.

2. The Mini-LED cabinet structure splicing system according to claim 1, characterized in that, The compensation execution module includes an actuation component and a thermal compensation component; The actuation component is located at the corner of the Mini-LED housing structure to achieve displacement adjustment with micron-level and below precision in the Z-axis. The thermal compensation component is installed on the back panel of the housing and is used to compensate for the thermal expansion difference between different materials through its own deformation.

3. The Mini-LED cabinet structure splicing system according to claim 2, characterized in that, The actuation component includes piezoelectric ceramic actuators, which are integrated one-to-one at the four corners of the Mini-LED housing structure, and each piezoelectric ceramic actuator is independently controlled.

4. The Mini-LED cabinet structure splicing system according to claim 2, characterized in that, The thermal compensation component includes a shape memory alloy mesh layer made of Ni-Ti alloy and having a rhomboid topology. The size of a single mesh cell in the rhomboid topology is 2mm × 2mm.

5. The Mini-LED cabinet structure splicing system according to claim 1, characterized in that, The parameter perception module includes a visual detection unit and a multi-parameter sensing unit. The visual inspection unit is used to scan the splicing seams of the Mini-LED cabinet structure and generate splicing accuracy parameters and three-dimensional morphology data. The multi-parameter sensing unit is used to collect in real time the ambient temperature, vibration frequency, and locking force parameters of the connection execution module during the splicing process of the Mini-LED cabinet structure.

6. The Mini-LED cabinet structure splicing system according to claim 5, characterized in that, The visual inspection unit includes a camera assembly and a structured light assembly, with a scanning frequency of 30Hz and a seam curvature detection accuracy Δκ < 0.01mm. -1 ; The multi-parameter sensing unit includes a temperature sensor, a vibration sensor, and a torque sensor, and the torque sensor is integrated into the connection execution module.

7. The Mini-LED cabinet structure splicing system according to claim 1, characterized in that, The connection execution module includes an angle compensation component and an adaptive locking component; The angle compensation component is used to compensate for the angle deviation generated during the assembly of the housing, and the adaptive locking component is used to dynamically adjust the locking force according to the environmental interference parameters monitored by the parameter sensing module.

8. The Mini-LED cabinet structure splicing system according to claim 7, characterized in that, The angle compensation component is a six-degree-of-freedom ball joint plug; The adaptive locking device is an electromagnetic locking pin, and a torque sensor is integrated on the electromagnetic locking pin.

9. An error compensation method for a Mini-LED cabinet structure splicing system, characterized in that, The error compensation method, applied to the splicing system according to any one of claims 1-8, comprises: When the system is powered on and initialized, the parameter sensing module starts up, controls the visual detection unit to scan the splicing seam of the Mini-LED cabinet structure to generate sub-pixel level 3D point cloud data, and controls the multi-parameter sensing unit to synchronously collect ambient temperature, vibration frequency and locking force parameters. The collaborative control module receives 3D point cloud data and environmental interference parameters collected by the parameter sensing module, analyzes and processes the 3D point cloud data, and calculates the height difference and angle deviation at the splicing point. The collaborative control module drives the compensation execution module and the connection execution module to perform coordinated actions based on the calculated deviation parameters and the collected environmental interference parameters.

10. The error compensation method for the Mini-LED cabinet structure splicing system according to claim 9, characterized in that, When the height difference is greater than the preset position deviation threshold, the actuation component in the compensation execution module is driven to perform Z-axis displacement compensation. When the ambient temperature is greater than the preset temperature threshold, the thermal compensation component in the compensation execution module is activated to generate compensation strain. When the vibration frequency is detected to be within the preset vibration range, the locking force of the adaptive fastener in the connection execution module is adjusted to form a dynamic compensation closed loop.

Images