CN116698376A - Intelligent testing method for quality uniformity of outdoor spliced display screen based on scene simulation - Google Patents
Intelligent testing method for quality uniformity of outdoor spliced display screen based on scene simulation Download PDFInfo
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Abstract
The invention relates to the technical field of quality uniformity testing of display screens, and particularly discloses an intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation.
Description
Technical Field
The invention relates to the technical field of quality uniformity testing of display screens, in particular to an intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation.
Background
The outdoor spliced display screen is an application solution which can combine and splice a plurality of unit display screens into a large screen, is characterized by being suitable for an outdoor environment, has the characteristics of high brightness, water resistance, dust resistance, corrosion resistance and the like, has a large application prospect under the outdoor environment, can be applied to scenes such as city squares, stadiums, stations, airports, commercial advertisements and the like, can realize large-screen display and high-quality video playing, and has certain difference in using effect due to uneven quality of the outdoor spliced display screen in the practical application of the outdoor spliced display screen, so that the quality of the outdoor spliced display screen is assessed extremely necessarily.
The existing quality analysis of the outdoor spliced display screen can meet the current requirements to a certain extent, but certain defects exist, and the quality analysis is specifically implemented in the following layers: (1) Most of the prior art is to directly carry out quality analysis on an outdoor spliced display screen in a normal environment, analysis forces on other environments are not deep enough, such as a rainy day environment, a high-temperature environment and the like, the quality of the outdoor spliced display screen is affected by other environments to a certain extent, the quality analysis of the outdoor spliced display screen is inaccurate due to neglecting of the layer in the prior art, normal use of the outdoor spliced display screen is affected, and the effect of the outdoor spliced display screen in the use process is difficult to guarantee.
(2) The prior art is not high to the attention degree of the surface smoothness of outdoor concatenation display screen, and prior art is neglected to this aspect, can't provide reliable data support for the quality analysis of outdoor concatenation display screen on the one hand to influence outdoor concatenation display screen quality analysis's accuracy, on the other hand is difficult to ensure the roughness of outdoor concatenation display screen, and then influences outdoor concatenation display screen's actual impression to a certain extent, is unfavorable for outdoor concatenation display screen's video to put in, thereby is difficult to reach anticipated outdoor throwing effect.
Disclosure of Invention
In order to overcome the defects in the background technology, the embodiment of the invention provides an intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation, which can effectively solve the problems related to the background technology.
The aim of the invention can be achieved by the following technical scheme: an intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation comprises the following steps: s1, dividing an outdoor spliced display screen: dividing outdoor spliced display screens to be detected according to preset quantity, and further obtaining each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen.
S2, acquiring test parameters of an outdoor spliced display screen: and acquiring test parameters corresponding to each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen.
S3, quality analysis of an outdoor spliced display screen: and analyzing the comprehensive test quality coefficient corresponding to the outdoor spliced display screen.
S4, secondary testing of the outdoor spliced display screen: and performing use tests on each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and further obtaining corresponding use test parameters.
S5, using quality analysis of an outdoor spliced display screen: and analyzing the corresponding use quality evaluation index of the outdoor spliced display screen.
S6, evaluating comprehensive quality of the outdoor spliced display screen: and analyzing the comprehensive quality evaluation coefficient corresponding to the outdoor spliced display screen.
S7, comprehensive quality treatment of the outdoor spliced display screen: and displaying the comprehensive quality evaluation coefficients corresponding to the outdoor spliced display screen.
As a preferable scheme, the outdoor spliced display screens to be detected are divided according to preset quantity, so as to obtain each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen, and the specific method is as follows: dividing the total number of the outdoor spliced display screens to be detected by five, taking the quotient as a preset number, dividing the quotient according to the preset number to obtain all the outdoor spliced display screens to be detected, which belong to the rainy day environment, all the outdoor spliced display screens to be detected, which belong to the wind power environment, all the outdoor spliced display screens to be detected, which belong to the high temperature environment, all the outdoor spliced display screens to be detected, which belong to the low temperature environment, and all the outdoor spliced display screens to be detected, which belong to the normal environment, if the remainder exists, dividing all the remaining outdoor spliced display screens to be detected into all the outdoor spliced display screens to be detected in the normal environment.
And marking all outdoor spliced display screens to be detected, which belong to the rainy day environment, as all rainy day test display screens.
And similarly, obtaining each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen.
As a preferred solution, the test parameters include the length and width of the image and the respective slit.
As a preferable scheme, the comprehensive test quality coefficient corresponding to the outdoor spliced display screen comprises the following specific analysis method: extracting the length of each gap from the test parameters of each rainy day test display screenAnd width->Wherein->Number indicated as test display screen for each rainy day, < >>，/>Number indicated as each slit>。
Extracting the standard length and standard width corresponding to each gap of all outdoor spliced display screens from cloud data, and further extracting the standard length and standard width corresponding to each gap of all rainy day test display screens from the cloud dataAnd width->。
Analyzing reasonable size coefficients corresponding to gaps of each rainy day test display screenWherein->、/>Respectively expressed as a preset allowable gap length error value, an allowable gap width error value and +.>、/>Respectively expressed as preset influence weight factors with reasonable gap length and reasonable gap width.
Analyzing gap quality evaluation indexes corresponding to all the rainy day test display screens according to the reasonable size coefficients corresponding to all the gaps to which the rainy day test display screens belong。
Analyzing test quality evaluation coefficients corresponding to each rainy day test display screenWherein->Denoted as +.>Appearance quality coefficient corresponding to the display screen tested in rainy days, < >>、/>Respectively a preset gap quality evaluation index and a weight coefficient corresponding to the appearance quality coefficient.
Similarly, analyzing test quality evaluation coefficients corresponding to each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and marking the test quality evaluation coefficients as respectively、/>、/>、/>Wherein->Number indicated as each wind test display, < >>，/>Numbers expressed as the number of each high temperature test display screen, < >>，/>Number indicated as each low temperature test display, < >>，/>Indicated as the number of each normal test display,。
analyzing comprehensive test quality coefficient corresponding to outdoor spliced display screenWherein->、/>、、/>And->The number of the display screens is the number of the test display screens in rainy days, the number of the wind power test display screens, the number of the high temperature test display screens, the number of the low temperature test display screens and the number of the normal test display screens.
As a preferable scheme, the gap quality evaluation index corresponding to each rainy day test display screenThe specific analysis method comprises the following steps: analyzing each normal gap corresponding to each rainy day test display screen according to the reasonable size coefficient corresponding to each gap to which each rainy day test display screen belongs, and counting the number of the gaps corresponding to each rainy day test display screen>。
Counting total number of gaps corresponding to each rainy day test display screen。
According to the reasonable size coefficient corresponding to each gap of each rainy day test display screen, the reasonable maximum size coefficient corresponding to each rainy day test display screen is screenedAnd a minimum size reasonable coefficient->。
Analyzing gap quality evaluation indexes corresponding to all rainy day test display screensWherein->Expressed as allowable deviation value of the preset maximum dimension reasonable coefficient corresponding to the minimum dimension reasonable coefficient,/>For the number of slots, ">、/>、/>The gap is respectively expressed as a preset duty factor corresponding to the reasonable gap size, the reasonable deviation of the maximum gap size and the minimum size and the normal gap number.
As a preferable scheme, the appearance quality coefficients corresponding to the display screens are tested in all rainy daysThe specific analysis method comprises the following steps: extracting images from test parameters of each rainy day test display screen, extracting scratch gray value ranges from a cloud database, and analyzing the area of each sub display screen corresponding to each scratch area of each rainy day test display screen according to the scratch gray value ranges>WhereinNumbers expressed as respective sub-displays, +.>，/>Number expressed as each scratch area, +.>。
Counting the number of scratch areas corresponding to each sub-display screen to which each rainy day test display screen belongs。
Analyzing scratch damage coefficients corresponding to each rainy day test display screenWherein->For the number of scratch areas, +.>For the number of sub-displays, +.>Expressed as a preset allowable scratch area, +.>The number of the allowed scratch areas is preset.
Similarly, analyzing corrosion damage coefficients corresponding to each rainy day test display screen。
Analyzing appearance quality coefficients corresponding to each rainy day test display screen，、/>Weight ratio factors corresponding to the predefined appearance defect quality and the flatness coefficient respectively, +.>Is->And testing the flatness coefficient corresponding to the display screen in rainy days.
As a preferable scheme, the display screen is tested for corresponding flatness coefficients in all rainy daysThe specific analysis method comprises the following steps: establishing a three-dimensional coordinate system by taking designated endpoints of each rainy day test display screen as an origin, randomly selecting each set point on each sub display screen to which each rainy day test display screen belongs, and acquiring coordinate values (I) corresponding to each set point on a y axis>Wherein->Numbers expressed as each of the arrangement points, +.>。
Analyzing the position suitability coefficients of the sub-display screens corresponding to the arrangement points of the rainy day test display screensWherein->For the y-axis standard coordinate value corresponding to each layout point of the pre-defined sub-display screen,/for the sub-display screen>And the allowable deviation value of the preset layout point on the y axis is corresponding.
Screening each normal layout point corresponding to each sub-display screen of each rainy day test display screen according to the position suitability coefficient of each sub-display screen corresponding to each layout point of each rainy day test display screen, and counting the corresponding positive of each sub-display screen of each rainy day test display screenNumber of points to be set。
Counting the number of corresponding arranged points of each sub-display screen to which each rainy day test display screen belongs。
Analyzing the corresponding flattening coefficient of each rainy day test display screenWherein->Expressed as a predefined layout point reference position suitability coefficient, < ->For the number of layout points.
As a preferred option, the use test parameters include resolution, brightness and contrast.
As a preferable scheme, the usage quality evaluation index corresponding to the outdoor spliced display screen is specifically provided with: extracting resolution from the corresponding use test parameters of each rainy day test display screenLuminance->And contrast ratio。
Extracting initial resolution corresponding to outdoor spliced display screen from cloud databaseInitial brightness->And initial contrast->。
Analyzing the use quality evaluation index corresponding to each rainy day test display screenWherein->、/>、/>Respectively expressed as proper correction factors corresponding to preset resolution, brightness and contrast.
Similarly, analyzing the use quality evaluation coefficients corresponding to each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and marking the use quality evaluation coefficients as respectively、/>、/>、/>。
Analyzing use quality assessment index corresponding to outdoor spliced display screen。
As a preferable scheme, the comprehensive quality evaluation coefficient corresponding to the outdoor spliced display screen has a calculation formula as follows:wherein->、/>Respectively representing the quality factors as preset comprehensive test quality factors and weight factors corresponding to the use quality evaluation indexes.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects: (1) According to the invention, the outdoor spliced display screen to be detected is divided and marked in the outdoor spliced display screen division, so that a foundation is laid for quality analysis of the subsequent outdoor spliced display screen.
(2) The method and the device acquire the corresponding test parameters of the outdoor spliced display screen from the test parameters of the outdoor spliced display screen, and provide powerful data support for quality analysis of the outdoor spliced display screen.
(3) According to the invention, in the quality analysis of the outdoor spliced display screen, the quality analysis of the outdoor spliced display screen under each environment is performed, so that the comprehensive test quality coefficient corresponding to the outdoor spliced display screen is comprehensively analyzed, the defect that the analysis strength of other environments is not deep enough in the prior art is overcome, the accuracy of the quality analysis of the outdoor spliced display screen is further ensured, the normal use of the display screen is ensured, and the effect of the outdoor spliced display screen in the use process is ensured.
(4) When the quality of the outdoor spliced display screen is analyzed, the method has higher attention to the surface flatness of the outdoor spliced display screen, on one hand, reliable data support is provided for the quality analysis of the outdoor spliced display screen, and further, the accuracy of the quality analysis of the outdoor spliced display screen is guaranteed, and on the other hand, the flatness of the outdoor spliced display screen is guaranteed, and further, the actual impression of the outdoor spliced display screen is guaranteed, the video release of the outdoor spliced display screen is facilitated, and therefore, the expected outdoor release effect is achieved.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a flow chart of the method of the present invention.
Fig. 2 is a schematic view of an outdoor tiled display screen according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides an intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation, which comprises the following steps: dividing outdoor spliced display screens to be detected according to preset quantity, and further obtaining each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen.
In a specific embodiment of the present invention, the outdoor spliced display screens to be detected are divided according to a preset number, so as to obtain each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen, and the specific method thereof is as follows: dividing the total number of the outdoor spliced display screens to be detected by five, taking the quotient as a preset number, dividing the quotient according to the preset number to obtain all the outdoor spliced display screens to be detected, which belong to the rainy day environment, all the outdoor spliced display screens to be detected, which belong to the wind power environment, all the outdoor spliced display screens to be detected, which belong to the high temperature environment, all the outdoor spliced display screens to be detected, which belong to the low temperature environment, and all the outdoor spliced display screens to be detected, which belong to the normal environment, if the remainder exists, dividing all the remaining outdoor spliced display screens to be detected into all the outdoor spliced display screens to be detected in the normal environment.
And marking all outdoor spliced display screens to be detected, which belong to the rainy day environment, as all rainy day test display screens.
And similarly, obtaining each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen.
According to the invention, the outdoor spliced display screen to be detected is divided and marked in the outdoor spliced display screen division, so that a foundation is laid for quality analysis of the subsequent outdoor spliced display screen.
S2, acquiring test parameters of an outdoor spliced display screen: and acquiring test parameters corresponding to each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen.
In a specific embodiment of the present invention, the test parameters include the length and width of the image and each slit.
The specific method for acquiring the corresponding test parameters of each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen is as follows: building a rainy day environment, a wind power environment, a high temperature environment, a low temperature environment and a normal environment, respectively carrying out corresponding environment tests on each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen, and carrying out image acquisition on each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen, thereby obtaining test parameters corresponding to each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen.
It should be noted that, constructing a rainy day environment is to simulate a rainy day environment by using a spray header, constructing a wind power environment is to simulate a wind power environment by using a small fan, constructing a high temperature environment is to simulate a high temperature environment by using a heater, and constructing a low temperature environment is to simulate a low temperature environment by using a refrigerating device.
It should be noted that, the normal environment is constructed as a start button for closing the above-mentioned rainy day environment, wind power environment, high temperature environment and low temperature environment.
The method and the device acquire the corresponding test parameters of the outdoor spliced display screen from the test parameters of the outdoor spliced display screen, and provide powerful data support for quality analysis of the outdoor spliced display screen.
S3, quality analysis of an outdoor spliced display screen: and analyzing the comprehensive test quality coefficient corresponding to the outdoor spliced display screen.
In a specific embodiment of the present invention, the comprehensive test quality coefficient corresponding to the outdoor tiled display screen is specifically analyzed by: extracting the length of each gap from the test parameters of each rainy day test display screenAnd width->Wherein->Number indicated as test display screen for each rainy day, < >>，/>Number indicated as each slit>。
Extracting the standard length and standard width corresponding to each gap of all outdoor spliced display screens from cloud data, and further extracting the standard length and standard width corresponding to each gap of all rainy day test display screens from the cloud dataAnd width->。
Analyzing reasonable size coefficients corresponding to gaps of each rainy day test display screenWherein->、/>Respectively expressed as a preset allowable gap length error value, an allowable gap width error value and +.>、/>Respectively expressed as preset influence weight factors with reasonable gap length and reasonable gap width.
Analyzing gap quality evaluation indexes corresponding to all the rainy day test display screens according to the reasonable size coefficients corresponding to all the gaps to which the rainy day test display screens belong。
Analyzing test quality evaluation coefficients corresponding to each rainy day test display screenWherein->Denoted as +.>Appearance quality coefficient corresponding to the display screen tested in rainy days, < >>、/>Respectively a preset gap quality evaluation index and a weight coefficient corresponding to the appearance quality coefficient.
Similarly, analyzing each wind power test display screen, each high temperature test display screen and each low temperature testThe display screen and the test quality evaluation coefficients corresponding to the normal test display screen are respectively marked as、/>、/>、/>Wherein->Number indicated as each wind test display, < >>，/>Numbers expressed as the number of each high temperature test display screen, < >>，/>Number indicated as each low temperature test display, < >>，/>Indicated as the number of each normal test display,。
analyzing comprehensive test quality coefficient corresponding to outdoor spliced display screenWherein->、/>、、/>And->The number of the display screens is the number of the test display screens in rainy days, the number of the wind power test display screens, the number of the high temperature test display screens, the number of the low temperature test display screens and the number of the normal test display screens.
In a specific embodiment of the present invention, the gap quality assessment index corresponding to each rainy day test display screenThe specific analysis method comprises the following steps: comparing the reasonable size coefficient corresponding to each gap to which each rainy day test display screen belongs with a predefined reasonable size coefficient threshold, if the reasonable size coefficient corresponding to a certain gap to which a certain rainy day test display screen belongs is larger than or equal to the reasonable size coefficient threshold, marking the gap as a normal gap, further obtaining each normal gap corresponding to each rainy day test display screen, and counting the number of the normal gaps corresponding to each rainy day test display screen>。
Counting total number of gaps corresponding to each rainy day test display screen。
According to the reasonable size coefficient corresponding to each gap of each rainy day test display screen, the reasonable maximum size coefficient corresponding to each rainy day test display screen is screenedAnd a minimum size reasonable coefficient/>。
Analyzing gap quality evaluation indexes corresponding to all rainy day test display screensWherein->Expressed as allowable deviation value of the preset maximum dimension reasonable coefficient corresponding to the minimum dimension reasonable coefficient,/>For the number of slots, ">、/>、/>The gap is respectively expressed as a preset duty factor corresponding to the reasonable gap size, the reasonable deviation of the maximum gap size and the minimum size and the normal gap number.
In a specific embodiment of the present invention, the appearance quality coefficients corresponding to the display screens are tested in each rainy dayThe specific analysis method comprises the following steps: extracting images from test parameters of each rainy day test display screen, extracting scratch gray value ranges from a cloud database, and analyzing the area of each sub display screen corresponding to each scratch area of each rainy day test display screen according to the scratch gray value ranges>Wherein->Numbers expressed as respective sub-displays, +.>，/>Number expressed as each scratch area, +.>。
The method is characterized by analyzing the area of each sub-display screen corresponding to each scratch area of each rainy day test display screen, and comprises the following specific steps: and converting the images of the rainy day test display screens into gray level images, and further obtaining the gray level values corresponding to the sub display screens to which the rainy day test display screens belong.
And extracting a scratch gray value range from the cloud database, comparing each gray value of each sub-display screen to which each rainy day test display screen belongs with the scratch gray value range, and marking the gray value as a scratch gray value if a gray value of a sub-display screen to which a certain rainy day test display screen belongs is in the scratch gray value range, so as to obtain each scratch gray value of each sub-display screen to which each rainy day test display screen belongs, and obtaining the corresponding area of each scratch area of each sub-display screen to which each rainy day test display screen belongs.
Counting the number of scratch areas corresponding to each sub-display screen to which each rainy day test display screen belongs。
Analyzing scratch damage coefficients corresponding to each rainy day test display screenWherein->For the number of scratch areas, +.>For the number of sub-displays, +.>Expressed as a preset allowable scratch area, +.>The number of the allowed scratch areas is preset.
Similarly, analyzing corrosion damage coefficients corresponding to each rainy day test display screen。
Analyzing appearance quality coefficients corresponding to each rainy day test display screen，、/>Weight ratio factors corresponding to the predefined appearance defect quality and the flatness coefficient respectively, +.>Is->And testing the flatness coefficient corresponding to the display screen in rainy days.
Referring to FIG. 2, in a specific embodiment of the present invention, the flatness coefficients corresponding to the rainy day test display screenThe specific analysis method comprises the following steps: establishing a three-dimensional coordinate system by taking designated endpoints of each rainy day test display screen as an origin, randomly selecting each setting point on each sub display screen to which each rainy day test display screen belongs, and acquiring a coordinate value corresponding to each setting point on a y axisWherein->Numbers expressed as each of the arrangement points, +.>。
It should be noted that fig. 2 is an example of a single outdoor tiled display screen, and in the outdoor tiled display screen, the number of sub-display screens may be plural, and is not limited to only the 4 sub-display screens shown in fig. 2.
Analyzing the position suitability coefficients of the sub-display screens corresponding to the arrangement points of the rainy day test display screensWherein->For the y-axis standard coordinate value corresponding to each layout point of the pre-defined sub-display screen,/for the sub-display screen>，/>And the allowable deviation value of the preset layout point on the y axis is corresponding.
Screening each normal distribution point corresponding to each sub-display screen of each rainy day test display screen according to the position suitability coefficient of each sub-display screen corresponding to each distribution point, and counting the number of the normal distribution points corresponding to each sub-display screen of each rainy day test display screen。
It should be noted that, each rainy day test display screen belongs to each sub display screen corresponding to each normal arrangement point, its specific method is: comparing the position suitability coefficient of each sub-display screen corresponding to each layout point of each rainy day test display screen with a predefined position suitability coefficient threshold, and if the position suitability coefficient of a certain sub-display screen corresponding to a certain layout point of a certain rainy day test display screen is larger than or equal to the position suitability coefficient threshold, marking the layout point as a normal layout point, thereby obtaining each normal layout point corresponding to each sub-display screen of each rainy day test display screen.
Counting the number of corresponding arranged points of each sub-display screen to which each rainy day test display screen belongs。
Analyzing the corresponding flattening coefficient of each rainy day test display screenWherein->Expressed as a predefined layout point reference position suitability coefficient, < ->，/>For the number of layout points.
According to the invention, in the quality analysis of the outdoor spliced display screen, the quality analysis of the outdoor spliced display screen under each environment is performed, so that the comprehensive test quality coefficient corresponding to the outdoor spliced display screen is comprehensively analyzed, the defect that the analysis strength of other environments is not deep enough in the prior art is overcome, the accuracy of the quality analysis of the outdoor spliced display screen is further ensured, the normal use of the display screen is ensured, and the effect of the outdoor spliced display screen in the use process is ensured.
When the quality of the outdoor spliced display screen is analyzed, the method has higher attention to the surface flatness of the outdoor spliced display screen, on one hand, reliable data support is provided for the quality analysis of the outdoor spliced display screen, and further, the accuracy of the quality analysis of the outdoor spliced display screen is guaranteed, and on the other hand, the flatness of the outdoor spliced display screen is guaranteed, and further, the actual impression of the outdoor spliced display screen is guaranteed, the video release of the outdoor spliced display screen is facilitated, and therefore, the expected outdoor release effect is achieved.
S4, secondary testing of the outdoor spliced display screen: and performing use tests on each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and further obtaining corresponding use test parameters.
In a specific embodiment of the invention, the use of test parameters includes resolution, brightness and contrast.
S5, using quality analysis of an outdoor spliced display screen: and analyzing the corresponding use quality evaluation index of the outdoor spliced display screen.
In a specific embodiment of the present invention, the usage quality evaluation index corresponding to the outdoor tiled display screen specifically includes: extracting resolution from the corresponding use test parameters of each rainy day test display screenLuminance->And contrast->。
Extracting initial resolution corresponding to outdoor spliced display screen from cloud databaseInitial brightness->And initial contrast->。
Analyzing the use quality evaluation index corresponding to each rainy day test display screenWherein->、/>、/>Respectively expressed as proper correction factors corresponding to preset resolution, brightness and contrast.
Similarly, analyzing the use quality evaluation coefficients corresponding to each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and marking the use quality evaluation coefficients as respectively、/>、/>、/>。
Analyzing use quality assessment index corresponding to outdoor spliced display screen。
S6, evaluating comprehensive quality of the outdoor spliced display screen: and analyzing the comprehensive quality evaluation coefficient corresponding to the outdoor spliced display screen.
In a specific embodiment of the present invention, the calculation formula of the comprehensive quality assessment coefficient corresponding to the outdoor tiled display screen is:wherein->、/>Respectively representing the quality factors as preset comprehensive test quality factors and weight factors corresponding to the use quality evaluation indexes.
S7, comprehensive quality treatment of the outdoor spliced display screen: and displaying the comprehensive quality evaluation coefficients corresponding to the outdoor spliced display screen.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art of describing particular embodiments without departing from the structures of the invention or exceeding the scope of the invention as defined by the claims.
Claims (10)
1. The intelligent testing method for quality uniformity of the outdoor spliced display screen based on scene simulation is characterized by comprising the following steps of:
s1, dividing an outdoor spliced display screen: dividing outdoor spliced display screens to be detected according to preset quantity, and further obtaining each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen;
s2, acquiring test parameters of an outdoor spliced display screen: acquiring corresponding test parameters of each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen;
s3, quality analysis of an outdoor spliced display screen: analyzing the comprehensive test quality coefficient corresponding to the outdoor spliced display screen;
s4, secondary testing of the outdoor spliced display screen: performing use tests on each rainy day test display screen, each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and further obtaining corresponding use test parameters;
s5, using quality analysis of an outdoor spliced display screen: analyzing a corresponding use quality evaluation index of the outdoor spliced display screen;
s6, evaluating comprehensive quality of the outdoor spliced display screen: analyzing a comprehensive quality evaluation coefficient corresponding to the outdoor spliced display screen;
s7, comprehensive quality treatment of the outdoor spliced display screen: and displaying the comprehensive quality evaluation coefficients corresponding to the outdoor spliced display screen.
2. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 1, wherein the intelligent testing method is characterized in that: the outdoor spliced display screens to be detected are divided according to preset quantity, so that each rainy day test display screen, each wind power test display screen, each high temperature test display screen, each low temperature test display screen and each normal test display screen are obtained, and the specific method is as follows:
dividing the total number of the outdoor spliced display screens to be detected by five, taking the quotient as a preset number, and dividing the total number of the outdoor spliced display screens to be detected, which are belonged to rainy days, the outdoor spliced display screens to be detected, which are belonged to wind power environments, the outdoor spliced display screens to be detected, which are belonged to high temperature environments, the outdoor spliced display screens to be detected, which are belonged to low temperature environments, and the outdoor spliced display screens to be detected, which are belonged to normal environments, according to the preset number, and dividing all the remaining outdoor spliced display screens to be detected into the outdoor spliced display screens to be detected in normal environments if remainder exists;
marking all outdoor spliced display screens to be detected, which belong to the rainy day environment, as all rainy day test display screens;
and similarly, obtaining each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen.
3. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 1, wherein the intelligent testing method is characterized in that: the test parameters include the length and width of the image and each slit.
4. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation according to claim 3, wherein the intelligent testing method is characterized by comprising the following steps of: the comprehensive test quality coefficient corresponding to the outdoor spliced display screen comprises the following specific analysis methods:
extracting the length of each gap from the test parameters of each rainy day test display screenAnd width->Wherein->Number indicated as test display screen for each rainy day, < >>，/>Number indicated as each slit>；
Extracting the standard length and standard width corresponding to each gap of all outdoor spliced display screens from cloud data, and further extracting the standard length and standard width corresponding to each gap of all rainy day test display screens from the cloud dataAnd width->；
Analyzing reasonable size coefficients corresponding to gaps of each rainy day test display screenWherein->、/>Respectively expressed as a preset allowable gap length error value, an allowable gap width error value and +.>、/>Respectively expressed as a preset influence weight factor with reasonable gap length and reasonable gap width;
analyzing gap quality evaluation indexes corresponding to all the rainy day test display screens according to the reasonable size coefficients corresponding to all the gaps to which the rainy day test display screens belong；
Analyzing test quality evaluation coefficients corresponding to each rainy day test display screenWherein->Denoted as +.>Appearance quality coefficient corresponding to the display screen tested in rainy days, < >>、/>Respectively a preset gap quality evaluation index and a weight coefficient corresponding to the appearance quality coefficient;
similarly, analyzing test quality evaluation coefficients corresponding to each wind power test display screen, each high-temperature test display screen, each low-temperature test display screen and each normal test display screen, and marking the test quality evaluation coefficients as respectively、/>、/>、/>Wherein->Number indicated as each wind test display, < >>，/>Numbers expressed as the number of each high temperature test display screen, < >>，/>Number indicated as each low temperature test display, < >>，/>Number indicated as each normal test display, < >>；
Analyzing comprehensive test quality coefficient corresponding to outdoor spliced display screenWherein->、/>、/>、/>And->The number of the display screens is the number of the test display screens in rainy days, the number of the wind power test display screens, the number of the high temperature test display screens, the number of the low temperature test display screens and the number of the normal test display screens.
5. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 4, wherein the intelligent testing method is characterized in that: the gap quality assessment indexes corresponding to the rainy day test display screensThe specific analysis method comprises the following steps:
analyzing each normal gap corresponding to each rainy day test display screen according to the reasonable size coefficient corresponding to each gap to which each rainy day test display screen belongs, and counting the number of the normal gaps corresponding to each rainy day test display screen；
Counting total number of gaps corresponding to each rainy day test display screen；
According to the reasonable size coefficient corresponding to each gap of each rainy day test display screen, the reasonable maximum size coefficient corresponding to each rainy day test display screen is screenedAnd a minimum size reasonable coefficient->；
Analyzing gap quality evaluation indexes corresponding to all rainy day test display screensWherein->Expressed as allowable deviation value of the preset maximum dimension reasonable coefficient corresponding to the minimum dimension reasonable coefficient,/>For the number of slots, ">、/>、/>The gap is respectively expressed as a preset duty factor corresponding to the reasonable gap size, the reasonable deviation of the maximum gap size and the minimum size and the normal gap number.
6. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 4, wherein the intelligent testing method is characterized in that: appearance quality coefficients corresponding to the rainy day test display screensThe specific analysis method comprises the following steps:
extracting images from test parameters of each rainy day test display screen, extracting scratch gray value ranges from a cloud database, and analyzing the areas of the sub display screens corresponding to the scratch areas of each rainy day test display screen according to the scratch gray value rangesWherein->Numbers expressed as respective sub-displays, +.>，/>Number expressed as each scratch area, +.>；
Counting the number of scratch areas corresponding to each sub-display screen to which each rainy day test display screen belongs；
Analyzing scratch damage coefficients corresponding to each rainy day test display screenWherein->For the number of scratch areas, +.>For the number of sub-displays, +.>Expressed as a preset allowable scratch area, +.>The number of the allowed scratch areas is preset;
similarly, analyzing corrosion damage coefficients corresponding to each rainy day test display screen；
Analyzing appearance quality coefficients corresponding to each rainy day test display screen，、/>Weight ratio factors corresponding to the predefined appearance defect quality and the flatness coefficient respectively, +.>Is->And testing the flatness coefficient corresponding to the display screen in rainy days.
7. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 6, wherein the intelligent testing method is characterized in that: the corresponding flattening coefficients of the test display screens in all rainy daysThe specific analysis method comprises the following steps:
establishing a three-dimensional coordinate system by taking designated endpoints of each rainy day test display screen as an origin, randomly selecting each setting point on each sub display screen to which each rainy day test display screen belongs, and acquiring a coordinate value corresponding to each setting point on a y axisWherein->Numbers expressed as each of the arrangement points, +.>；
Analyzing the position suitability coefficients of the sub-display screens corresponding to the arrangement points of the rainy day test display screensWherein->For the y-axis standard coordinate value corresponding to each layout point of the pre-defined sub-display screen,/for the sub-display screen>The allowable deviation value of the preset layout point on the y axis is corresponding to the preset layout point;
screening each normal distribution point corresponding to each sub-display screen of each rainy day test display screen according to the position suitability coefficient of each sub-display screen corresponding to each distribution point, and counting the number of the normal distribution points corresponding to each sub-display screen of each rainy day test display screen；
Counting the number of corresponding arranged points of each sub-display screen to which each rainy day test display screen belongs；
Analyzing the corresponding flattening coefficient of each rainy day test display screenWhereinExpressed as a predefined layout point reference position suitability coefficient, < ->For the number of layout points.
8. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 4, wherein the intelligent testing method is characterized in that: the usage test parameters include resolution, brightness and contrast.
9. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 8, wherein the intelligent testing method is characterized in that: the corresponding use quality evaluation index of the outdoor spliced display screen comprises the following specific methods:
extracting resolution from the corresponding use test parameters of each rainy day test display screenLuminance->And contrast->；
Extracting initial resolution corresponding to outdoor spliced display screen from cloud databaseInitial brightness->And initial contrast->；
Analyzing the use quality evaluation index corresponding to each rainy day test display screenWherein->、/>、/>Respectively representing the proper correction factors corresponding to preset resolution, brightness and contrast;
similarly, each wind power test display screen and each high temperature test are analyzedThe display screen, each low-temperature test display screen and the corresponding use quality evaluation coefficients of each normal test display screen are respectively marked as、/>、/>、/>；
Analyzing use quality assessment index corresponding to outdoor spliced display screen。
10. The intelligent testing method for quality uniformity of an outdoor spliced display screen based on scene simulation as set forth in claim 9, wherein the intelligent testing method is characterized in that: the comprehensive quality evaluation coefficient corresponding to the outdoor spliced display screen has the following calculation formula:wherein->、/>Respectively representing the quality factors as preset comprehensive test quality factors and weight factors corresponding to the use quality evaluation indexes.
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