CN111474746A - L CD display screen fault judgment system and method based on color channel analysis - Google Patents
L CD display screen fault judgment system and method based on color channel analysis Download PDFInfo
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- CN111474746A CN111474746A CN202010255741.XA CN202010255741A CN111474746A CN 111474746 A CN111474746 A CN 111474746A CN 202010255741 A CN202010255741 A CN 202010255741A CN 111474746 A CN111474746 A CN 111474746A
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- display screen
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- channel analysis
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The invention discloses a L CD display screen fault judgment system based on color channel analysis, wherein a L CD display screen is rectangular, the system comprises an acquisition mechanism, a front processor, a cloud server and a maintenance center, the acquisition mechanism comprises a light guide plate arranged above a L CD display screen, the length and the width of the light guide plate are both larger than those of a L CD display screen, two adjacent edge sides of the L CD display screen are respectively provided with an RGB (red, green and blue) optical sensor, the RGB optical sensors are positioned below the light guide plate, the RGB optical sensors are electrically connected with the front processor, and the front processor, the cloud server and the maintenance center are sequentially in communication connection.
Description
Technical Field
The invention relates to the technical field of L CD display screens, in particular to a L CD display screen fault judgment system and method based on color channel analysis.
Background
In the use process of the current commercial multimedia display screen, no mechanism is provided for judging whether the screen is normal or not. In a large number of practical applications, for example subway trains, the screen is damaged, or shows unusually, can discover the trouble when needing artifical the inspection. The train is large in quantity, the train length is long, 8 screens are used in each train carriage, the inspection time of all trains is long after the inspection is finished, the workload of inspection personnel is large, the cost is high, the efficiency is low, and the timeliness is low. Or the navigation information screens used on the streets and in the shopping malls are large in quantity and long in distance, the routing inspection is also a very labor-consuming matter, and the fault display cannot be found in real time.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a L CD display screen fault judgment system and method based on color channel analysis, which can realize accurate online monitoring of a L CD display screen.
In order to achieve the purpose, the invention adopts the specific scheme that:
the utility model provides an L CD display screen fault diagnosis system based on color channel analysis, L CD display screen is the rectangle, the system is including acquisition mechanism, leading treater, cloud ware and maintenance center, acquisition mechanism is including setting up the light guide plate of L CD display screen top, just the length and the width of light guide plate all are greater than L CD display screen, the side of a broadside of L CD display screen is provided with RGB light sensor, just RGB light sensor is located the below of light guide plate, RGB light sensor with leading treater electric connection, leading treater the cloud ware with the maintenance center is communication connection in proper order.
A L CD display screen fault judgment method based on color channel analysis is applied to the L CD display screen fault judgment system based on color channel analysis, and comprises the following steps:
s1, folding the display image of the L CD display screen to the RGB light sensor through the light guide plate;
s2, the RGB light sensor generates sensing signals after receiving the display image;
s3, the front processor acquires the induction signal and sends the induction signal to the cloud server;
s4, the cloud server analyzes the fault information of the L CD display screen according to the induction signal;
and S5, the cloud server sends the fault information to the front processor and the maintenance center.
Preferably, the specific method of S1 is:
s1.1, dividing the L CD display screen into a plurality of areas, wherein the areas are rectangular, and all the areas are arranged in parallel and are parallel to the wide side of the L CD display screen;
s1.2, sequentially displaying red, green and blue colors in part of the area, wherein the display duration time is n milliseconds each time;
s1.3, sequentially displaying red, green and blue in the rest areas, wherein the display duration of each time is n milliseconds.
Preferably, in S1.2 and S1.3, the regions displaying red, green or blue are not adjacent.
Preferably, in S4, the cloud server parses the fault information, generates a maintenance scheme according to the fault information, and synchronously sends the fault information and the maintenance scheme to the maintenance center.
Preferably, in S4, the failure information includes a failure region.
According to the system, a display image of an L CD display screen is refracted to the RGB optical sensor through the light guide plate, the RGB optical sensor is used for sensing the display state of the L CD display screen, then the front-end processor sends the sensing result to the cloud server, the cloud server analyzes the sensing result, the fault condition of the L CD display screen is obtained, a maintenance scheme is generated according to the fault condition, and finally the maintenance scheme is sent to the maintenance center, so that a worker in the maintenance center can quickly maintain the L CD display screen with faults.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of the acquisition mechanism in the fault diagnosis system of the present invention;
fig. 2 is a block diagram showing the configuration of the failure determination system of the present invention.
Reference numerals 1-light guide plate, 2-L CD display screen, 3-RGB light sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an acquisition mechanism in the fault determination system of the present invention, and fig. 2 is a block diagram of the fault determination system of the present invention.
The utility model provides an L CD display screen fault diagnosis system based on color channel analysis, L CD display screen 2 is the rectangle, the system is including gathering the mechanism, leading treater, cloud ware and maintenance center, gather the mechanism including setting up light guide plate 1 in L CD display screen 2 top, and light guide plate 1's length and width all are greater than L CD display screen 2, the side of a broadside of L CD display screen 2 is provided with RGB light sensor 3, and RGB light sensor 3 is located light guide plate 1's below, RGB light sensor 3 and leading treater electric connection, leading treater, cloud ware and maintenance center communication connection in proper order.
According to the system, a display image of an L CD display screen 2 is refracted to an RGB optical sensor 3 through a light guide plate 1, the RGB optical sensor 3 is used for sensing the display state of a L CD display screen 2, then a front-end processor sends a sensing result to a cloud server, the cloud server analyzes the sensing result to obtain the fault condition of the L CD display screen 2, a maintenance scheme is generated according to the fault condition, and finally the maintenance scheme is sent to a maintenance center, so that a worker of the maintenance center can quickly maintain the L CD display screen 2 with faults.
Based on the system for judging the fault, the invention also provides a fault judging method of the L CD display screen fault judging system based on color channel analysis, which comprises S1 to S5.
The display images of the S1, L CD display panel 2 are refracted through the light guide plate 1 onto the RGB photosensors 3.
S2, the RGB photo sensor 3 generates a sensing signal after receiving the display image.
And S3, the front processor acquires the induction signal and sends the induction signal to the cloud server.
And S4, the cloud server analyzes the fault information of the L CD display screen 2 according to the induction signal.
And S5, the cloud server sends the fault information to the front processor and the maintenance center.
By adopting the method, the L CD display screen 2 can be accurately monitored on line, so that the fault condition of the L CD display screen 2 can be timely found, and a maintenance center can be timely informed to process the fault condition.
Further, specific methods of S1 are S1.1 to S1.3.
S1.1, dividing the L CD display screen 2 into a plurality of areas, wherein the areas are rectangular, and all the areas are arranged in parallel and are parallel to the broadside of the L CD display screen 2.
S1.2, sequentially displaying red, green and blue in a partial area, wherein the display duration is n milliseconds each time.
S1.3, the rest areas display red, green and blue in sequence, and the display duration of each time is n milliseconds.
L CD display screen 2 only shows in partial region during showing at every turn, and the color is monochromatic, can promote the meticulous degree of RGB optical sensor 3 response result, with the help of remaining white region, the cloud ware can be fast to the region that breaks down to fix a position, and, can also effectively avoid different color zone to cause the chaotic condition of RGB optical sensor 3's response result, improve the accuracy degree of judged result.
Further, in S1.2, S1.3, S1.5, and S1.6, the regions displaying red, green, or blue are not adjacent. Any two adjacent colored areas are separated by a white area, so that the positioning precision of the fault pixel point can be improved.
Specifically, in this embodiment, the L CD screen is divided into 4 areas, the divided areas are sequentially lighted up according to three primary colors of R, G, and B, the RGB sensor can obtain whether the area has an optical signal emitted by a corresponding color, and the signal is used to compare adjacent detection results to determine whether the area is normal.
Comparing the contents displayed at two different moments, when the screen detects red, the R values detected by the RGB sensors are the same, in the embodiment, the R value is equal to 2, namely, the contents are displayed as red, white, red, white or white, red and white, indicating that the detection result is normal; if the R value at a certain moment in the contents displayed at two different moments is less than 2, namely only one area displays red or no area displays red, the area is damaged, and if the area which should originally display white is displayed in other colors except white, the area is damaged, the damaged area can be identified through the color without judging the damaged position of the screen. When the green and the blue are detected in sequence, the detection of the screen display is completed in the same way as the red.
In another embodiment, the screen can be divided into more blocks to be detected more accurately, for example, 8 areas or even more, and the specific positions are judged by different display color blocks, so that the areas of the detected screen are denser and the accuracy is higher.
Further, in S4, the cloud server parses the fault information, generates a maintenance scheme according to the fault information, and synchronously sends the fault information and the maintenance scheme to the maintenance center.
Further, in S4, the failure information includes a failure region, and since the L CD display screen 2 is area-divided at the time of display, the failure region can be represented according to the result of area division.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an L CD display screen fault diagnosis system based on color channel analysis, L CD display screen (2) are the rectangle, its characterized in that the system is including gathering mechanism, leading treater, cloud ware and maintenance center, gather the mechanism including setting up light guide plate (1) in L CD display screen (2) top, just the length and the width of light guide plate (1) all are greater than L CD display screen (2), the side of one broadside of L CD display screen (2) is provided with RGB light sensor (3), just RGB light sensor (3) are located the below of light guide plate (1), RGB light sensor (3) with leading treater electric connection, leading treater, cloud ware with the maintenance center is communication connection in proper order.
2. The L CD display screen fault judgment method based on color channel analysis is applied to the L CD display screen fault judgment system based on color channel analysis as claimed in claim 1, and is characterized by comprising the following steps:
s1, refracting the display image of the L CD display screen (2) to the RGB light sensor (3) through the light guide plate (1);
s2, the RGB light sensor (3) generates sensing signals after receiving the display image;
s3, the front processor acquires the induction signal and sends the induction signal to the cloud server;
s4, the cloud server analyzes the fault information of the L CD display screen (2) according to the induction signal;
and S5, the cloud server sends the fault information to the front processor and the maintenance center.
3. The L CD display screen fault diagnosis method based on color channel analysis of claim 2, wherein the specific method of S1 is:
s1.1, dividing the L CD display screen (2) into a plurality of areas, wherein the areas are rectangular, and all the areas are arranged in parallel and are parallel to the wide side of the L CD display screen (2);
s1.2, sequentially displaying red, green and blue colors in part of the area, wherein the display duration time is n milliseconds each time;
s1.3, sequentially displaying red, green and blue in the rest areas, wherein the display duration of each time is n milliseconds.
4. The L CD display screen fault diagnosis method based on color channel analysis of claim 6, wherein in S1.2 and S1.3, the areas displaying red, green or blue are not adjacent.
5. The method for judging the failure of the L CD display screen based on color channel analysis as claimed in claim 4, wherein in S4, the cloud server parses the failure information, generates a maintenance scheme based on the failure information, and synchronously sends the failure information and the maintenance scheme to the maintenance center.
6. The L CD display screen failure judgment method based on color channel analysis of claim 4, wherein in S4, the failure information includes a failure area.
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| CN202010255741.XA CN111474746B (en) | 2020-04-02 | 2020-04-02 | LCD display screen fault judgment system and method based on color channel analysis |
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| CN202010255741.XA CN111474746B (en) | 2020-04-02 | 2020-04-02 | LCD display screen fault judgment system and method based on color channel analysis |
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| CN111474746B (en) | 2023-02-10 |
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