CN116913188B - Construction and installation method and system for LED screen of building outer wall - Google Patents
Construction and installation method and system for LED screen of building outer wall Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The application discloses a construction and installation method and a system for an LED screen of a building outer wall. Through the mode, the mode of manual detection at the rear end is canceled to avoid subjectivity and inefficiency of manual judgment, and further, no obvious brightness or color difference on the surface of the whole screen is ensured through the intelligent uniformity detection mode of the LED screen, so that the display effect of the LED screen of the building outer wall after construction and installation is optimized.
Description
Technical Field
The application relates to the technical field of intelligent construction and installation, in particular to a construction and installation method and system for an LED screen of a building outer wall.
Background
The LED screen is widely applied to decoration and propaganda display of building outer walls. The LED modules are basic units forming an LED screen, and each LED module comprises a plurality of LED lamp beads. When the LED screen is installed on the outer wall of a building, the problems of uneven brightness, inconsistent color or brightness attenuation and the like of the LED screen can be caused due to improper operation or material quality problems in the construction process, so that the display effect is not ideal.
However, the conventional uniformity testing scheme of the LED screen mainly relies on manual testing from one position to another, and for large-sized LED screens, the testing process is complicated and time-consuming. Moreover, subjective feelings of human eyes are easily affected by factors such as ambient light, visual angles, subjective preferences of individuals and the like, so that evaluation results are not objective and accurate enough. The existing scheme also has some robot inspection testing methods, but the scheme can only collect and return image data through a robot, cannot provide detailed data analysis and visualization results, and finally needs to manually perform uniformity testing on the LED screen, so that the uniformity condition of the LED screen is difficult to accurately judge, and the display effect of the LED screen is poor.
Accordingly, an optimized construction and installation scheme for the LED screen of the outer wall of the building is desired.
Disclosure of Invention
The present application has been made to solve the above-mentioned technical problems. The embodiment of the application provides a construction and installation method and a system for an LED screen of a building outer wall, wherein after a robot collects display test images of the LED screen, an image processing and analyzing algorithm is added at the rear end to test the uniformity of the display of the LED screen. Through the mode, the mode of manual detection at the rear end is canceled to avoid subjectivity and inefficiency of manual judgment, and further, no obvious brightness or color difference on the surface of the whole screen is ensured through the intelligent uniformity detection mode of the LED screen, so that the display effect of the LED screen of the building outer wall after construction and installation is optimized.
In a first aspect, a construction installation method of an LED screen of an exterior wall of a building is provided, which includes:
Designing parameters of an LED screen based on the shape and the structure of the building outer wall, wherein the parameters comprise the size, the resolution, the pixel density, the number of modules, a power line and a signal line, and manufacturing corresponding LED modules and brackets;
Reserving an installation hole site corresponding to the LED module on the outer wall of the building, and arranging a fixing piece at the installation hole site;
the LED modules are connected with the building outer wall through the fixing pieces according to preset design positions and sequences to form a basic frame of an LED screen;
The power supply circuit and the signal circuit are respectively connected to a power supply interface and a signal interface of the LED module, and are arranged on the inner surface of the building outer wall according to a wiring mode of a preset design;
Debugging and detecting the LED module, and correcting the LED module with uniformity which does not meet the preset requirement; and
And arranging shielding plates around the LED screen or other parts needing shielding to obtain the LED screen of the building outer wall after the installation is completed.
In a second aspect, there is provided a construction installation system for an LED screen of an exterior wall of a building, comprising:
the parameter acquisition module is used for designing parameters of the LED screen based on the shape and the structure of the building outer wall, wherein the parameters comprise the size, the resolution, the pixel density, the number of modules, the power supply circuit and the signal circuit, and manufacturing corresponding LED modules and brackets;
the mounting hole site reservation module is used for reserving a mounting hole site corresponding to the LED module on the outer wall of the building and arranging a fixing piece at the mounting hole site;
the basic frame forming module is used for connecting the LED modules with the building outer wall through the fixing pieces according to preset design positions and sequences so as to form a basic frame of the LED screen;
the circuit connection module is used for respectively connecting the power supply circuit and the signal circuit to a power supply interface and a signal interface of the LED module, and disposing the power supply circuit and the signal circuit on the inner surface of the building outer wall according to a wiring mode of a preset design;
the debugging and correcting module is used for debugging and detecting the LED module and correcting the LED module with uniformity which does not meet the preset requirement; and
And the installation module is used for arranging shielding plates around the LED screen or other parts needing shielding to obtain the LED screen of the building outer wall after the installation is completed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a construction installation method of an LED screen of an exterior wall of a building according to an embodiment of the present application.
Fig. 2 is a schematic diagram of an architecture of a construction installation method of an LED screen of an external wall of a building according to an embodiment of the present application.
Fig. 3 is a flowchart of the substeps of step 150 in the construction installation method of the LED screen of the outer wall of the building according to the embodiment of the present application.
Fig. 4 is a flowchart of the substeps of step 152 in the construction installation method of the LED screen of the outer wall of the building according to the embodiment of the present application.
Fig. 5 is a block diagram of a construction installation system for an LED screen of an exterior wall of a building according to an embodiment of the present application.
Fig. 6 is a schematic view of a construction installation method of an LED screen of an external wall of a building according to an embodiment of the present application.
Detailed Description
The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Unless defined otherwise, all technical and scientific terms used in the embodiments of the application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present application.
In describing embodiments of the present application, unless otherwise indicated and limited thereto, the term "connected" should be construed broadly, for example, it may be an electrical connection, or may be a communication between two elements, or may be a direct connection, or may be an indirect connection via an intermediate medium, and it will be understood by those skilled in the art that the specific meaning of the term may be interpreted according to circumstances.
It should be noted that, the term "first\second\third" related to the embodiment of the present application is merely to distinguish similar objects, and does not represent a specific order for the objects, it is to be understood that "first\second\third" may interchange a specific order or sequence where allowed. It is to be understood that the "first\second\third" distinguishing objects may be interchanged where appropriate such that embodiments of the application described herein may be practiced in sequences other than those illustrated or described herein.
An LED screen (LIGHT EMITTING Diode Display) is a flat Display device employing Light Emitting Diodes (LEDs) as Display elements. The LED screen is widely used in various occasions including indoor and outdoor billboards, stage venues, stadiums, malls, traffic signals, etc. due to its characteristics of high brightness, high contrast, wide viewing angle, low power consumption, etc.
The LED screen operates on the principle that image display is achieved by controlling the light emission of LEDs, which are semiconductor devices that emit light when current is passed through the LEDs. In the LED screen, thousands of LED lamps are combined into one pixel, and by controlling the brightness and color of each pixel, rich images and video contents can be displayed.
LED screens come in a variety of types, including indoor LED screens and outdoor LED screens. The indoor LED screen generally adopts a small-space LED display technology, has high resolution and fine display effect, and is suitable for indoor environments such as meeting rooms, television walls, markets and the like. The outdoor LED screen needs to have characteristics of water resistance, dust resistance, sunlight interference resistance, etc. so as to adapt to various severe outdoor environmental conditions.
The LED screen has high brightness and high contrast, and can be clearly seen in a bright environment. LED screens have a wide range of viewing angles from which viewers can appreciate clear images. Compared with the traditional display equipment, the LED screen has lower power consumption and higher energy efficiency ratio, and is beneficial to energy conservation and emission reduction. The LED screen has longer service life which can reach more than tens of thousands of hours, and the maintenance and replacement cost is greatly reduced. The LED screen can display various static images and dynamic videos, and can be updated and adjusted in real time by a control system.
Although LED screens have many advantages, attention is paid to their installation and use requirements, including proper brightness and color adjustment, reasonable viewing distance and angle, etc., to ensure optimal display results are obtained.
Fig. 1 is a flowchart of a construction installation method of an LED screen of an exterior wall of a building according to an embodiment of the present application. As shown in fig. 1, the construction and installation method of the building exterior wall LED screen comprises the following steps: 110, designing parameters of the LED screen based on the shape and structure of the building outer wall, wherein the parameters comprise, but are not limited to, size, resolution, pixel density, module number, power supply lines and signal lines, and manufacturing corresponding LED modules and brackets; 120, reserving an installation hole position corresponding to the LED module on the outer wall of the building, and arranging a fixing piece at the installation hole position; 130, connecting the LED module with the building outer wall through the fixing member according to a predetermined design position and sequence to form a basic frame of the LED screen; 140, connecting the power supply line and the signal line to a power supply interface and a signal interface of the LED module respectively, and disposing the power supply line and the signal line on the inner surface of the building outer wall according to a wiring mode of a preset design; 150, debugging and detecting the LED module, and correcting the LED module with uniformity not meeting the preset requirement; and 160, arranging shielding plates around the LED screen or other parts needing shielding to obtain the LED screen of the building outer wall after the installation is completed.
In step 110, the size and shape of the LED screen are determined according to the shape and structure of the building exterior wall, so as to ensure that the LED screen is matched with the building exterior wall. And determining the resolution and pixel density of the LED screen according to the viewing distance and the requirement so as to ensure the definition and detail expression of the image. And calculating the required number of modules according to the size and pixel density of the LED modules, and ensuring the integrity and uniformity of the LED screen. And the reasonable design of the power supply circuit and the signal circuit layout takes the stability and the reliability of power supply and signal transmission into consideration.
Through the size and the parameter of reasonable design LED screen, can realize with building outer wall's perfect adaptation, strengthen visual effect. Selecting the proper resolution and pixel density can ensure the image quality and detail presentation of the LED screen. And the reasonable number of modules is determined, so that the uniformity and consistency of the LED screen can be ensured. And the power supply circuit and the signal circuit are reasonably distributed, so that the stability and the reliability of power supply and signal transmission are improved.
In the step 120, according to the size and shape of the LED module, a mounting hole site corresponding to the LED module is reserved on the outer wall of the building, so as to ensure the accuracy and stability of mounting; and proper fixing parts such as bolts, expansion bolts and the like are selected to ensure firm and reliable connection between the LED module and the building outer wall. Wherein, reserve the corresponding installation hole site of LED module, make things convenient for the installation and the adjustment of LED module. By using a proper fixing piece, the LED module can be firmly connected with the building outer wall, and the safety and stability are enhanced.
In step 130, the LED modules are installed according to the predetermined designed positions and sequences, so as to ensure that the layout and display effects of the LED screen meet the design requirements, and the LED modules are connected with the building outer wall by using the fixing members, so that the stability and safety of the LED screen are ensured. The LED module is installed according to the design requirement, so that the overall layout and the display effect of the LED screen can be ensured to meet the expectations. Through the use of mounting, the LED screen is connected with the building outer wall and is fastened, has strengthened the stability and the durability of LED screen.
In the step 140, the power supply line and the signal line are respectively connected to the power supply interface and the signal interface of the LED module, so as to ensure the normal operation of power supply and signal transmission. And the power supply circuit and the signal circuit are arranged on the inner surface of the outer wall of the building according to a wiring mode of a preset design, so that the circuit is prevented from being exposed and damaged. It should be appreciated that the power supply lines and the signal lines are properly connected to ensure proper operation of the LED screen. The power supply circuit and the signal circuit are reasonably arranged, so that the power supply circuit and the signal circuit are hidden on the inner surface of the outer wall of the building, and the attractiveness and the safety are improved.
In step 150, debugging and detecting are performed on the installed LED module to ensure the normal operation and display effect of the LED screen. And checking the uniformity of the LED module, and if the uniformity does not meet the preset requirement, correcting or replacing. And through debugging and detection, the normal operation and the display effect of the LED screen are ensured to reach expectations. And correcting the LED module which does not meet the uniformity requirement, and improving the display quality and consistency of the LED screen.
In the step 160, shielding plates are disposed around the LED screen or other portions to be shielded to protect the LED screen and the circuit, thereby increasing safety and aesthetic property. The shielding plate can effectively protect the LED screen and the circuit and prevent the LED screen and the circuit from being damaged by external factors. The arrangement of the shielding plate can improve the attractiveness of the LED screen, so that the LED screen is tidier and more specialized.
Aiming at the problems, the technical conception of the application is that after the robot collects the display test image of the LED screen, an image processing and analyzing algorithm is added at the rear end to test the uniformity of the LED screen display. That is, the algorithm end improvement is performed after the image acquisition to realize the optimization of the uniformity testing scheme of the LED screen through the software end optimization. Through the mode, the mode of manual detection at the rear end is canceled to avoid subjectivity and inefficiency of manual judgment, and further, no obvious brightness or color difference on the surface of the whole screen is ensured through the intelligent uniformity detection mode of the LED screen, so that the display effect of the LED screen of the building outer wall after construction and installation is optimized.
Fig. 2 is a schematic diagram of an architecture of a construction installation method of an LED screen of an external wall of a building according to an embodiment of the present application. Fig. 3 is a flowchart of the substeps of step 150 in the construction installation method of the LED screen of the outer wall of the building according to the embodiment of the present application. As shown in fig. 2 and fig. 3, the debugging and detecting the LED module, and correcting the LED module with uniformity not meeting the predetermined requirement, includes: 151, collecting a display test image of the LED screen through a camera; 152, extracting image features of the display test image to obtain a display test state feature vector; and 153 determining whether the uniformity meets a predetermined requirement based on the display test state feature vector.
Among them, it is a common method to capture the display image of the LED screen using a camera, which can be placed in a proper position to ensure that the image of the entire LED screen can be captured. Image feature extraction is performed on the display test image to obtain a display test state feature vector, and an image processing algorithm may be used to extract features in the image, such as brightness, color distribution, and the like. Based on the display test state feature vector, a predefined uniformity requirement and threshold may be used to determine whether the resulting feature vector meets the requirements. According to the analysis result of the feature vector, whether the uniformity of the LED module meets the preset requirement can be determined.
Through the steps, subjectivity and inefficiency of manual judgment can be avoided, and accuracy and efficiency of uniformity testing of the LED screen are improved. If the uniformity of some LED modules is found to be unsatisfactory, the LED modules can be corrected according to specific conditions, such as adjusting the brightness, color correction and other operations of the LED modules, so as to improve the uniformity.
Specifically, in the step 151, a display test image of the LED screen is acquired by the camera.
In the technical scheme of the application, firstly, a display test image of an LED screen acquired by a camera is acquired. It will be appreciated that the display test image of the LED screen plays a critical role in determining whether the uniformity of the LED screen meets predetermined requirements. By analyzing and processing the display test image, key characteristic information such as brightness, color distribution and the like of the LED screen can be obtained, and further the uniformity of the LED screen is evaluated.
More specifically, by analyzing the brightness values of different areas in the image, it can be known whether there is a significant brightness difference in the LED screen, and if some areas are too bright or too dark, it may mean that the brightness of the LED module is not uniform. The LED screen is usually required to display different color contents, such as red, green, blue, etc., and by analyzing the color distribution of different areas in the image, it can be determined whether the LED screen has color deviation or non-uniformity. Based on the brightness and color information extracted from the display test image, uniformity indicators, such as uniformity coefficient, uniformity deviation, etc., can be calculated, which can be used to quantify the uniformity of the LED screen and compared to predetermined requirements.
Based on the analysis, the uniformity evaluation result of the LED screen can be obtained by performing image processing and analysis on the display test image. If the uniformity does not meet the preset requirement, corresponding correction measures, such as adjusting the brightness, color correction and the like of the LED module, can be adopted to improve the uniformity of the LED screen.
Thus, the display test image of the LED screen plays a critical role in determining whether the uniformity of the LED screen meets predetermined requirements, which provides critical data and information for evaluating the uniformity of the LED screen.
Specifically, in the step 152, image feature extraction is performed on the display test image to obtain a display test state feature vector. Fig. 4 is a flowchart of the substep of step 152 in the construction and installation method of the LED screen of the building outer wall according to the embodiment of the present application, as shown in fig. 4, performing image feature extraction on the display test image to obtain a display test state feature vector, including: 1521, performing image blocking processing on the display test image to obtain a sequence of display test image blocks; 1522, respectively performing image feature analysis on each display test image block in the sequence of display test image blocks to obtain a plurality of display test image block feature vectors; and 1523 performing similarity transfer association analysis on the plurality of display test image block feature vectors to obtain the display test state feature vector.
The uniformity of the LED screen can be objectively evaluated through image feature extraction and analysis, and subjectivity of manual judgment is avoided. And the camera is used for collecting and displaying the test image, and automatic image processing and analysis are performed, so that the efficiency and accuracy of the test are greatly improved. By means of the feature analysis and the similarity transfer correlation analysis of the display test image block, whether the uniformity of the LED screen meets the preset requirement can be determined more accurately. Moreover, the method can be suitable for LED screens with different sizes and types, and has strong universality and expandability. The display effect of the LED screen can be improved by optimizing the uniformity of the LED screen, so that the LED screen can show better visual effect in various application scenes.
For the step 1521, considering that the brightness or color difference feature information about the LED screen is a small-scale implicit feature in the image in the process of actually testing the display uniformity of the LED screen, it is difficult to effectively capture the uniformity defect feature on the LED screen by using a traditional feature extraction method. Therefore, in the technical scheme of the application, the display test image needs to be subjected to image blocking processing to obtain a sequence of display test image blocks. By blocking the display test image, the surface of the LED screen can be divided into a plurality of local areas for testing. This allows for a finer view of the brightness and color appearance of each small area of the entire LED screen, in order to better find possible uniformity problems.
Image blocking processing is a process of dividing one image into a plurality of small blocks. In LED screen uniformity testing, the entire image may be segmented into multiple blocks by image blocking processing of the displayed test image, so that each block is subjected to independent feature analysis and evaluation.
Specifically, first, the size of each image block is determined, and the size of the block may be selected according to specific requirements, typically according to the size and pixel density of the LED screen. Then, the whole image is divided according to the determined block size, which may be an average division manner or may be divided according to a specific block rule. After division, each image block contains local information of the image. The divided image blocks are then arranged in a predetermined order to form a sequence of image blocks. In this way, each image block can be uniquely identified by an index.
Through image blocking processing, the entire image can be broken up into multiple tiles for independent feature extraction and analysis of each tile. Therefore, the uniformity of the LED screen can be evaluated more carefully, and the characteristic vector of each image block is obtained, so that a foundation is provided for subsequent uniformity analysis and optimization.
For the step 1522, it includes: and respectively passing each display test image block in the sequence of display test image blocks through a display feature extractor based on a convolution layer to obtain feature vectors of the plurality of display test image blocks.
Then, a convolution layer-based display feature extractor with excellent performance in terms of implicit feature extraction of images is used for feature mining of each display test image block in the sequence of display test image blocks, so that implicit feature distribution information about the display test state of the LED screen in each display test image block is extracted respectively, and a plurality of display test image block feature vectors are obtained.
The display characteristic extractor based on the convolution layer can perform characteristic extraction on the display test image blocks to obtain the characteristic vector of each image block, so that the characteristics of each image block can be more comprehensively described, and the uniformity of the LED screen can be more accurately evaluated.
The convolutional layer-based display feature extractor is a deep learning model, typically consisting of multiple convolutional layers, pooling layers, and fully-connected layers. The method can learn the local features and the global features of the image, and perform advanced feature extraction and representation on the image. By means of a convolution layer based display feature extractor, rich feature information, including texture, edges, colors, etc., can be extracted from each image block, which can be used for subsequent uniformity analysis and optimization. To evaluate the display effect of the LED screen more accurately and to provide a targeted optimization scheme.
For the step 1523, it includes: calculating transfer matrixes among any two display test image block feature vectors in the plurality of display test image block feature vectors to obtain a plurality of transfer matrixes; performing feature distribution optimization on the plurality of transfer matrixes to obtain a plurality of optimized transfer matrixes; and respectively calculating global average values of the plurality of optimized transfer matrices to obtain the display test state feature vector composed of a plurality of transfer feature values.
Further, it is also considered that in the process of actually detecting the display uniformity of the LED screen, if there is no obvious brightness or color difference on the surface of the LED screen, the similarity between the display test status feature information of each local area in the display test image of the LED screen is higher. If the LED screen has the problems of uneven brightness, inconsistent color, or luminance decay, the degree of difference between the display test status features of each local area in the display test image of the LED screen is higher. Based on this, in the technical scheme of the application, in order to further improve the accuracy of the uniformity test of the LED screen, a transfer matrix between any two display test image block feature vectors in the plurality of display test image block feature vectors needs to be further calculated to obtain a plurality of transfer matrices, so as to represent similarity transfer associated feature information related to display test status features of the LED screen between every two local areas in the display test image of the LED screen, so as to facilitate measuring uniformity differences among different image blocks, thereby facilitating the detection of the overall display uniformity of the LED screen.
Further, performing feature distribution optimization on the plurality of transfer matrices to obtain a plurality of optimized transfer matrices, including: arranging the plurality of transfer matrices along a channel dimension into a transfer feature map; and performing channel dimension traversal flow form convex optimization of the transfer feature graphs on the transfer matrices to obtain the optimized transfer matrices.
In one embodiment of the application, first, the required transfer matrices, which may be extracted from the image or video data, are collected to describe the transfer relationship between the different channels. The collected transfer matrices are then arranged along the channel dimension. Typically, the dimensions of the transfer matrix are (width, height, number of channels), where the number of channels represents different color channels or feature channels. Next, the aligned transfer matrices are combined into a transfer feature map, the dimensions of the transfer feature map being (width, height, number of channels), wherein the number of channels represents the different transfer features. Finally, the generated transfer feature map may be visualized or further processed as desired. For example, the transfer feature map may be enhanced, filtered, or otherwise manipulated using image processing algorithms to obtain a better transfer feature representation.
By arranging a plurality of transfer matrices along the channel dimension as a transfer feature map, transfer relationships between different channels can be extracted and represented, thereby providing richer information for subsequent analysis, identification or optimization tasks. This method is widely used in the fields of computer vision, image processing, machine learning, and the like.
In particular, in the technical scheme of the application, each display test image block feature vector is used for expressing the image semantic features of the corresponding display test image block, so that the transfer matrix between any two display test image block feature vectors is used for expressing the domain transfer features of the image semantic between different blocks. However, considering the image semantic distribution non-uniformity among the various blocks of the display test image, the transfer matrices serving as the image semantic domain transfer characteristics among different blocks also have larger manifold representation differences, so that the manifold geometric continuity of the multiple transfer matrices distributed along the channel cannot be maintained as in the case of feature extraction of a single convolutional neural network model in the high-dimensional feature space, and after the global average value of the multiple transfer matrices is calculated, the manifold geometric continuity of the obtained display test state feature vector formed by multiple transfer feature values is further deteriorated, and the convergence effect of the display test state feature vector through the classifier is influenced, namely, the training speed of the classifier and the accuracy of the classification result are influenced.
Thus, for the plurality of transfer matrices, they are arranged along a channel as a transfer feature map, and for each transfer matrix, e.g., denoted as M i, a channel dimension traversal flow-form convex optimization of the transfer feature map is performed, denoted as: performing channel dimension traversal flow form convex optimization on each transfer matrix according to the following optimization formula to obtain a plurality of optimized transfer matrices; wherein, the optimization formula is:
Wherein M i is the transfer matrix, V t1 [ GAP (F) ] and V t2 [ GAP (F) ] are column vectors and row vectors obtained by linear transformation based on global average pooling vectors composed of global averages of the feature matrices of the transfer feature map, the expression 2 the spectral norms of the matrix are used, Represents matrix multiplication, +..
Here, the channel dimension traversing manifold of the transferring feature map is convex optimized to determine the base dimension of the feature matrix manifold by structuring the direction of the maximum distribution density of the modulated feature matrix, and traversing the feature matrix manifold along the channel direction of the transferring feature map to restrict the convex optimization continuity of the traversing manifold represented by each feature matrix M i by stacking the base dimension of the traversing manifold along the channel direction, thereby realizing the geometric continuity of the high-dimensional feature manifold of the transferring feature map composed of the traversing manifold of the optimized feature matrix M' i, and improving the manifold geometric continuity of the display test state feature vector composed of a plurality of transferring feature values, thereby improving the convergence effect of the display test state feature vector through the classifier, and improving the training speed of the classifier and the accuracy of the classification result. Like this, can carry out effective detection to the demonstration degree of consistency of LED screen to ensure that whole screen surface does not have obvious luminance or colour difference, thereby optimize the installation effectiveness and the quality of LED screen, reduce construction cost and risk, guarantee the stability and the aesthetic property of LED screen.
In the uniformity test of the LED screen, in order to effectively detect the overall uniformity of the LED screen, similarity-related feature information of the display test state between every two partial areas needs to be fused. Therefore, in the technical scheme of the application, the global average value of the plurality of optimized transfer matrices is further calculated respectively to obtain the display test state feature vector composed of a plurality of transfer feature values. By calculating the global average value of the plurality of optimized transfer matrixes, the display associated characteristic information about every two local areas of the image in the plurality of transfer matrixes can be comprehensively considered, so that the influence of individual transfer matrixes is reduced, and more stable and reliable uniformity evaluation results are obtained.
Specifically, in the step 153, determining whether the uniformity meets the predetermined requirement based on the display test state feature vector includes: and the display test state feature vector is passed through a classifier to obtain a classification result, wherein the classification result is used for indicating whether the uniformity meets the preset requirement.
And then, the display test state feature vector is passed through a classifier to obtain a classification result, wherein the classification result is used for indicating whether the uniformity meets the preset requirement. That is, the overall uniformity condition of the LED screen is comprehensively evaluated by using similar global correlation characteristics among display test state characteristics of each local area in the display test image of the LED screen, so that no obvious brightness or color difference is ensured on the whole screen surface.
The subjectivity of subjective judgment can be avoided by classifying the feature vectors showing the test states by using a classifier. The classifier can be used for rapidly and accurately judging whether the uniformity meets the preset requirement, and compared with manual judgment, the intelligent method can greatly save time and labor cost. Inputting the display test state feature vector into the classifier for classification is an automatic process, which means that the uniformity test can be rapidly and continuously performed in mass production, and the production efficiency is improved. In addition, the classifier can classify the characteristic vector of the display test state in real time, and timely feedback whether the uniformity meets the preset requirement or not is facilitated, so that the display effect of the LED screen can be timely adjusted and optimized.
In summary, the construction and installation method 100 for the LED screen of the building exterior wall according to the embodiment of the application is illustrated, and the mode of manual detection at the rear end is canceled to avoid subjectivity and inefficiency of manual judgment, so that no obvious brightness or color difference is ensured on the surface of the whole screen through an intelligent mode of detecting the uniformity of the LED screen, and the display effect of the LED screen of the building exterior wall after construction and installation is optimized.
In one embodiment of the present application, fig. 5 is a block diagram of a construction installation system for an LED screen of an exterior wall of a building according to an embodiment of the present application. As shown in fig. 5, the construction installation system 200 for the LED screen of the outer wall of the building according to the embodiment of the present application includes: the parameter obtaining module 210 is configured to design parameters such as a size, a resolution, a pixel density, a number of modules, a power line, a signal line, etc. of the LED screen based on the shape and the structure of the building exterior wall, and manufacture corresponding LED modules and brackets; the mounting hole site reserving module 220 is used for reserving a mounting hole site corresponding to the LED module on the outer wall of the building and arranging a fixing piece at the mounting hole site; a basic frame forming module 230 for connecting the LED modules with the building exterior wall through the fixing members according to a predetermined design position and order to form a basic frame of the LED screen; the circuit connection module 240 is configured to connect the power circuit and the signal circuit to a power interface and a signal interface of the LED module, respectively, and deploy the power circuit and the signal circuit on an inner surface of the building outer wall according to a routing manner of a predetermined design; the debugging and correcting module 250 is used for debugging and detecting the LED module and correcting the LED module with uniformity which does not meet the preset requirement; and an installation module 260, configured to set a shielding plate around the LED screen or other parts to be shielded, so as to obtain the installed LED screen on the building exterior wall.
Specifically, in the building exterior wall LED screen construction installation system, the debugging and correction module includes: the image acquisition unit is used for acquiring a display test image of the LED screen through the camera; the image feature extraction unit is used for extracting image features of the display test image to obtain a display test state feature vector; and the uniformity determining unit is used for determining whether the uniformity meets the preset requirement or not based on the display test state feature vector.
Here, it will be understood by those skilled in the art that the specific functions and operations of the respective units and modules in the above-described construction exterior wall LED screen construction installation system have been described in detail in the above description of the construction exterior wall LED screen construction installation method with reference to fig. 1 to 4, and thus, repetitive descriptions thereof will be omitted.
As described above, the construction installation system 200 for an LED screen for an exterior wall of a building according to an embodiment of the present application may be implemented in various terminal devices, for example, a server for construction installation of an LED screen for an exterior wall of a building, and the like. In one example, the building exterior wall LED screen construction installation system 200 according to an embodiment of the present application may be integrated into the terminal device as one software module and/or hardware module. For example, the building exterior wall LED screen construction installation system 200 may be a software module in the operating system of the terminal device, or may be an application developed for the terminal device; of course, the building exterior wall LED screen construction mounting system 200 can also be one of a number of hardware modules of the terminal device.
Alternatively, in another example, the building exterior wall LED screen construction installation system 200 and the terminal device may be separate devices, and the building exterior wall LED screen construction installation system 200 may be connected to the terminal device through a wired and/or wireless network and transmit the interactive information in a agreed data format.
Fig. 6 is a schematic view of a construction installation method of an LED screen of an external wall of a building according to an embodiment of the present application. As shown in fig. 6, in the application scenario, first, a display test image (e.g., C as illustrated in fig. 6) of an LED screen (e.g., M as illustrated in fig. 6) is acquired by a camera; the acquired display test image is then input to a server (e.g., S as illustrated in fig. 6) deployed with a building exterior wall LED screen construction installation algorithm, wherein the server is capable of processing the display test image based on the building exterior wall LED screen construction installation algorithm to determine whether the uniformity meets a predetermined requirement.
It is also noted that in the apparatus, devices and methods of the present application, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (5)
1. The construction and installation method of the LED screen of the building outer wall is characterized by comprising the following steps of:
Designing parameters of an LED screen based on the shape and the structure of the building outer wall, wherein the parameters comprise the size, the resolution, the pixel density, the number of modules, a power line and a signal line, and manufacturing corresponding LED modules and brackets;
Reserving an installation hole site corresponding to the LED module on the outer wall of the building, and arranging a fixing piece at the installation hole site;
the LED modules are connected with the building outer wall through the fixing pieces according to preset design positions and sequences to form a basic frame of an LED screen;
The power supply circuit and the signal circuit are respectively connected to a power supply interface and a signal interface of the LED module, and are arranged on the inner surface of the building outer wall according to a wiring mode of a preset design;
Debugging and detecting the LED module, and correcting the LED module with uniformity which does not meet the preset requirement; and
Arranging shielding plates around the LED screen or other parts needing shielding to obtain the LED screen of the building outer wall after the installation is completed;
Debugging and detecting the LED module, correcting the LED module with uniformity not meeting the preset requirement, and the method comprises the following steps:
Collecting a display test image of an LED screen through a camera;
extracting image features of the display test image to obtain a display test state feature vector; and
Determining whether the uniformity meets a preset requirement or not based on the display test state feature vector;
extracting image features of the display test image to obtain a display test state feature vector, including:
Performing image blocking processing on the display test image to obtain a sequence of display test image blocks;
Respectively carrying out image feature analysis on each display test image block in the sequence of display test image blocks to obtain a plurality of display test image block feature vectors; and
Performing similarity transfer association analysis on the plurality of display test image block feature vectors to obtain the display test state feature vectors;
Respectively carrying out image feature analysis on each display test image block in the sequence of display test image blocks to obtain a plurality of display test image block feature vectors, wherein the method comprises the following steps: respectively passing each display test image block in the sequence of display test image blocks through a display feature extractor based on a convolution layer to obtain feature vectors of the plurality of display test image blocks;
Performing similarity transfer association analysis on the plurality of display test image block feature vectors to obtain the display test state feature vector, including:
Calculating transfer matrixes among any two display test image block feature vectors in the plurality of display test image block feature vectors to obtain a plurality of transfer matrixes;
performing feature distribution optimization on the plurality of transfer matrixes to obtain a plurality of optimized transfer matrixes; and
Respectively calculating global average values of the plurality of optimized transfer matrixes to obtain the display test state feature vector composed of a plurality of transfer feature values;
feature distribution optimization is performed on the plurality of transfer matrices to obtain a plurality of optimized transfer matrices, including:
Arranging the plurality of transfer matrices along a channel dimension into a transfer feature map; and
And performing channel dimension traversal manifold convex optimization of the transfer feature map on each transfer matrix to obtain the plurality of optimized transfer matrices.
2. The construction and installation method of an LED screen of an external wall of a building according to claim 1, wherein performing a channel dimension traversal flow form convex optimization of the transfer feature map on the respective transfer matrices to obtain the plurality of optimized transfer matrices comprises:
performing channel dimension traversal flow form convex optimization on each transfer matrix according to the following optimization formula to obtain a plurality of optimized transfer matrices;
wherein, the optimization formula is:
；
Wherein, Is the respective transfer matrix,/>And/>Column vectors and row vectors respectively obtained by linear transformation of global averaged pooling vectors composed of global averages of all feature matrices based on the transfer feature map,/>Representing the spectral norms of the matrix,/>Representing matrix multiplication,/>Represents multiplication by location, and/>The transfer matrix is optimized for said respective transfer matrix.
3. The construction installation method of the building exterior wall LED screen according to claim 2, wherein determining whether the uniformity meets a predetermined requirement based on the display test state feature vector comprises:
And the display test state feature vector is passed through a classifier to obtain a classification result, wherein the classification result is used for indicating whether the uniformity meets the preset requirement.
4. A construction installation system for an LED screen of an exterior wall of a building, for implementing the construction installation method for an LED screen of an exterior wall of a building according to claim 1, comprising:
the parameter acquisition module is used for designing parameters of the LED screen based on the shape and the structure of the building outer wall, wherein the parameters comprise the size, the resolution, the pixel density, the number of modules, the power supply circuit and the signal circuit, and manufacturing corresponding LED modules and brackets;
the mounting hole site reservation module is used for reserving a mounting hole site corresponding to the LED module on the outer wall of the building and arranging a fixing piece at the mounting hole site;
the basic frame forming module is used for connecting the LED modules with the building outer wall through the fixing pieces according to preset design positions and sequences so as to form a basic frame of the LED screen;
the circuit connection module is used for respectively connecting the power supply circuit and the signal circuit to a power supply interface and a signal interface of the LED module, and disposing the power supply circuit and the signal circuit on the inner surface of the building outer wall according to a wiring mode of a preset design;
the debugging and correcting module is used for debugging and detecting the LED module and correcting the LED module with uniformity which does not meet the preset requirement; and
And the installation module is used for arranging shielding plates around the LED screen or other parts needing shielding to obtain the LED screen of the building outer wall after the installation is completed.
5. The construction and installation system of the LED screen of the building exterior wall according to claim 4, wherein the debugging and correcting module comprises:
The image acquisition unit is used for acquiring a display test image of the LED screen through the camera;
the image feature extraction unit is used for extracting image features of the display test image to obtain a display test state feature vector; and
And the uniformity determining unit is used for determining whether the uniformity meets the preset requirement or not based on the display test state feature vector.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111402825A (en) * | 2020-03-31 | 2020-07-10 | 浙江宇视科技有限公司 | Screen correction method, device and system and logic board |
| CN113838410A (en) * | 2021-09-30 | 2021-12-24 | 浙江亿洲电子科技有限公司 | Intelligent control system of LED display screen |
| CN114038361A (en) * | 2021-10-27 | 2022-02-11 | 江苏思极科技服务有限公司盐城分公司 | Splicing display system based on holographic display unit |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111402825A (en) * | 2020-03-31 | 2020-07-10 | 浙江宇视科技有限公司 | Screen correction method, device and system and logic board |
| CN113838410A (en) * | 2021-09-30 | 2021-12-24 | 浙江亿洲电子科技有限公司 | Intelligent control system of LED display screen |
| CN114038361A (en) * | 2021-10-27 | 2022-02-11 | 江苏思极科技服务有限公司盐城分公司 | Splicing display system based on holographic display unit |
Non-Patent Citations (1)
| Title |
|---|
| 基于灰度直方图的LED显示屏亮度均匀性评估方法;宋新丽;郑喜凤;凌丽清;郝亚茹;;液晶与显示;20090215(第01期);全文 * |
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