A method and system for detecting faults of RGB data line and its terminals

Abstract

The present invention provides a method for detecting faults of RGB data lines and terminals thereof, comprising: a first step, pre-saving a color picture generated by displaying information of the color data bits of the RGB data lines and terminals thereof in a normal state, and generating a standard detection page; a second step, obtaining the color corresponding to the color data bits of the RGB data lines and terminals to be detected; a third step, judging the matching result of the color corresponding to the color data bits of the RGB data lines and terminals to be detected and the standard detection page; if they match, displaying the color picture of the standard detection page in a normal state; if they do not match, displaying the color picture of the standard detection page different from the color picture of the standard detection page in a normal state. In this way, it is not only intuitive to see that the RGB data lines and terminals to be detected have faults, but also it is easy to find the faulty RGB data lines and terminals thereof, saving the inspection and maintenance costs and improving the work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of image detection, and in particular relates to a method and system for detecting faults of an RGB data line and its terminals. Background Art

[0002] At present, the hardware circuit boards of LCD screens need to be tested and debugged for each device and circuit on the circuit board during the generation and assembly, factory inspection and product maintenance. Among them, the RGB data lines and their terminals on the circuit board are particularly important and become the focus of inspection and debugging before leaving the factory. The current inspection method for RGB data lines and their terminals is mainly to compare with the pictures displayed in the test program on the terminal. If the color display effect of the RGB data line and its terminal is consistent with that on the terminal program, it is considered a qualified product. If the color display effect of the RGB data line and its terminal is inconsistent with that on the terminal program, it is considered an unqualified product. However, it is not certain which color data bit of the data line and terminal has a problem. It is necessary to check and analyze the data line and terminal of each color data bit one by one, which increases manpower and time costs.

[0003] Therefore, it is necessary to adopt a detection method that can locate the point where the problem occurs to solve this problem. When problems occur in the RGB data line and its terminals, the location of the problem can be determined more accurately and quickly, thereby improving work efficiency and saving inspection and maintenance costs. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a method and system for detecting faults of an RGB data line and its terminals.

[0005] To achieve the above object, the present invention provides a method for detecting faults of an RGB data line and its terminals, comprising:

[0006] The first step is to pre-save the color picture generated by the RGB data lines and their terminals in the normal state according to their color data bit display information, and generate a standard detection page; the second step is to obtain the color corresponding to the color data bit of the RGB data lines and their terminals to be detected; the third step is to determine the matching result between the color corresponding to the color data bit of the RGB data lines and their terminals to be detected and the standard detection page; if they match, the color picture of the standard detection page in the normal state is displayed; if they do not match, the color picture of the standard detection page different from the normal state is displayed.

[0007] Optionally, the standard detection page in the first step is composed of color small images corresponding to no more than 24 color data bits, and each color small image is composed of a pure color background image superimposed on a pure color front image.

[0008] Optionally, the second step is to use a camera plus a structured light source to capture images of the solder joints of the RGB data lines to be detected and their terminals on the circuit board, and extract the colors corresponding to the color data bits in the image.

[0009] Optionally, the matching result of the third step refers to: when the match occurs, a color picture of the standard detection page in a normal state is displayed, indicating that the RGB data line to be tested and its terminal are fault-free; when the mismatch occurs, a color picture of the standard detection page different from that in a normal state is displayed, indicating that the RGB data line to be tested and its terminal are faulty.

[0010] Furthermore, the color picture displayed on the standard detection page when there is no match is different from the color picture displayed in the normal state, which means that the color of the non-matching position displayed on the standard detection page is white.

[0011] Furthermore, when the color of the mismatched position displayed on the standard detection page is white and / or continuous white, it indicates that the RGB data line and its terminal have a cold solder joint and / or a continuous solder joint.

[0012] A method and system for detecting faults of RGB data lines and terminals thereof, comprising: a storage module, for pre-saving color images generated by RGB data lines and terminals thereof in a normal state according to their color data bit display information, and generating a standard detection page; wherein the standard detection page is composed of color thumbnails corresponding to no more than 24 color data bits, and each color thumbnail is composed of a pure color background image superimposed on a pure color front image;

[0013] A detection module, used to obtain the color corresponding to the color data bit of the RGB data line to be detected and its terminal;

[0014] A judgment module, used for judging the matching result between the color corresponding to the color data bit of the RGB data line to be detected and its terminal and the standard detection page;

[0015] The display module is used to display the matching result after judgment. If there is a match, the color picture of the standard detection page in a normal state is displayed; if there is no match, the color picture of the standard detection page different from the normal state is displayed.

[0016] Optionally, the detection module generates the color corresponding to the color data bit corresponding to the RGB data line to be detected and its terminal by acquiring the color corresponding to the color data bit after image acquisition of the solder joints of the RGB data line to be detected and its terminal on the circuit board by using a camera plus a structured light source.

[0017] Optionally, the judgment module judges the matching result of the color picture generated by the color data bits corresponding to the RGB data line to be tested and its terminals and the picture of the standard detection page. If they match, the display module displays the color picture of the standard detection page in a normal state, indicating that the RGB data line and its terminals are fault-free; if they do not match, the display module displays the color picture of the standard detection page different from the color picture in a normal state, indicating that the RGB data line to be tested and its terminals are faulty.

[0018] Furthermore, when the display module displays the standard detection page in a color picture different from that in a normal state, which is white and / or continuous white, it indicates that the RGB data lines and their terminals are poorly soldered and / or continuously soldered.

[0019] The RGB data line and its terminal fault detection method system provided by the present invention has the following beneficial effects: the RGB data line and its terminal fault detection method and system described in the present invention first set up a standard detection page in the terminal program, and then extract the color data bits of the RGB data line and its terminal to be detected according to its color information and position information, generate a color picture adapted to the standard detection page for matching, if the RGB data line and its terminal to be detected have a cold solder joint or continuous solder joint, the extracted color data bit information is abnormal, and is displayed as white or continuous white on the picture corresponding to the standard detection page. In this way, it is intuitive to see that the RGB data line and its terminal to be detected have a fault, and it is easy to find the faulty RGB data line and its terminal, saving inspection and maintenance costs and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A flowchart of a method for detecting a fault of an RGB data line and its terminal provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a standard detection page for detecting RGB data lines and their terminals provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of detecting a fault in an RGB data line and its terminal provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of a fault detection system for RGB data lines and their terminals provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The RGB data line and terminal fault detection method and system of the present invention are described in detail below with reference to the accompanying drawings.

[0025] Figure 1FIG. 1 shows a flow chart of the steps of the method for detecting a fault of an RGB data line and its terminal provided by an embodiment of the present invention. Figure 1 The RGB data line and terminal fault detection method of the present embodiment specifically includes the following steps:

[0026] Step 101, namely, first pre-save the color picture generated by the RGB data lines and their terminals in a normal state according to their color data bit display information, and generate a standard detection page.

[0027] In the program of the detection terminal (such as a mobile terminal, a control terminal or a cloud), display information of the color data bits of the RGB data line and its terminals in a normal state (i.e., no fault occurs) is obtained in advance, and the display information includes color information and position information. Each color information and position information will form a small color picture, and then the small color pictures are sequentially composed of a large color picture, which is called a standard detection page and stored in the detection terminal program.

[0028] like Figure 2 As shown, the color thumbnail is composed of the color information and position information on each color data bit of the RGB data line and its terminal, arranged in the order of R7~R3, G7~G2, B7~B3, and each color thumbnail is composed of a pure color background image superimposed on a pure color front image. Specifically, the RGB data line and its terminal have the following display elements: red data bit (R7, R6, R5, R4, R3, R2, R1, R0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; green data bit (G7, G6, G5, G4, G3, G2, G1, G0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; blue data bit (B7, B6, B5, B4, B3, B2, B1, B0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0. The red data bit R, the green data bit G and the blue data bit B, each data bit generates a small color image. Since the colors displayed by the last few R, G, B data bits of the color image on the page to be detected are close to white, which is not conducive to judgment, they are discarded when synthesizing the color image of the standard detection page. It is generally composed of a combination of color small images corresponding to no more than 24 color data bits.

[0029] Each color thumbnail, such as the color thumbnail corresponding to R7, represents the color corresponding to the color data bits of an RGB data line and its terminals connected to it under normal conditions (i.e., no fault occurs). The specific generation method is as follows: first, select the background color. The data bit color corresponding to R7 needs to be mutually exclusive with other colors. Set the 7th bit to 0, and set the other R6~R0, G7~G0, and B7~B0 to 1, that is, the color value of R is 0x7F (decimal 127), the color value of G is 0xFF (decimal 255), and the color value of B is 0xFF (decimal 255); select the front color again. If the corresponding data bit color is set to 0, the front color RGB is set to 1 (R-255, G-255, B-255), otherwise it is set to 0 (R-0, G-0, B-0).

[0030] Step 102, i.e., in the second step, after the RGB data line to be detected and its terminal are connected to the detection terminal, a camera plus a structured light source is used to collect images of the solder joints of the RGB data line to be detected and its terminal on the circuit board, and the color corresponding to the color data bit in the image is extracted to generate a color corresponding to the standard detection page. Similar to the principle of color data bit generating color images in step 101, each RGB data bit to be detected and its terminal will also generate a corresponding color according to its own color information and position information.

[0031] In step 103, i.e., the third step, each RGB data bit and its terminal to be detected in the second step generates a corresponding color according to its own color information and position information, and inputs it into the detection program of the terminal. The detection program determines the matching result of the color corresponding to the color data bit of the RGB data line and its terminal to be detected and the standard detection page.

[0032] like Figure 3 As shown, if it matches, the color displayed on the standard detection page is consistent with the color corresponding to the color data bit of the RGB data line to be tested and its terminal, and the color of the standard detection page in the normal state is displayed. In this embodiment, the initial state color is displayed, indicating that the RGB data line to be tested and its terminal are fault-free; if it does not match, the color corresponding to the color data bit of the RGB data line and its terminal will become the opposite value when the color data bit is displayed, and will become the same as the previous color, and the color of the standard detection page in the abnormal state will be displayed, indicating that the RGB data line to be tested and its terminal have a fault. Take the above R7 as an example (R-127, G-255, B-255), when a problem occurs, R7 will become 1, and the overall color value of R will become 255, and the final background color will become (R-255, G-255, B-255), and the entire color thumbnail will become white, indicating that the data line and terminal of R7 have a fault.

[0033] Therefore, when a certain color thumbnail or continuous color thumbnails on the standard detection page turns white, it means that the RGB data line and its terminal have a cold solder joint or a continuous solder joint. Generally, if only one color thumbnail turns white, it means that the RGB data line and its terminal have a cold solder joint, and if continuous color thumbnails turn white, it means that the RGB data line and its terminal have a continuous solder joint.

[0034] The location of the faulty RGB data line and its terminal is detected, indicating that the color of this location is displayed as white in the standard detection page, so that the user can easily observe the location of the faulty RGB data line and its terminal with the naked eye. This can save inspection and maintenance costs and improve work efficiency.

[0035] Figure 4 A schematic diagram of a RGB data line and terminal fault detection system provided by an embodiment of the present invention is shown. In the detection terminal 2 or other terminals, a storage module 201 is provided for receiving and storing a standard detection page generated on the terminal according to color information and position information. The standard detection page is composed of a combination of color pictures corresponding to no more than 24 color data bits, wherein each color picture is composed of a pure color background picture superimposed on a pure color front picture.

[0036] A detection module 202 is provided, which generates the color corresponding to the color data bit of the RGB data line to be detected and its terminal by acquiring the image of the solder joints of the RGB data line to be detected and its terminal on the circuit board with a camera and a structured light source, and generates the color corresponding to the color data bit of the RGB data line to be detected and its terminal.

[0037] A judgment module 203 is provided for judging the matching result between the color picture generated by the color data bits corresponding to the RGB data lines to be detected and the terminals thereof and the picture on the standard detection page; a display module 204 is also provided for displaying the matching result after judgment, and if there is a match, the color picture of the standard detection page in a normal state is displayed. In this embodiment, the color picture of the standard detection page is the initial color, indicating that the RGB data lines and the terminals here are fault-free; if there is a mismatch, the color picture of the standard detection page different from the normal state is displayed. In this embodiment, if there is a mismatch, when the color picture of the standard detection page turns white or continuously white at the mismatching position, it indicates that the RGB data lines and the terminals here are poorly soldered or continuously soldered.

[0038] Generally speaking, if only one small color image on the standard detection page turns white, it means that the RGB data line and its terminal have a cold solder joint. If continuous small color images turn white, it means that the RGB data line and its terminal have a continuous solder joint.

[0039] The unmatched position on the image of the standard detection page is the area displayed as white on the image of the standard detection page. By observing the white area, the user can easily determine that the RGB data line and its terminal at that position have failed. In this way, it is not only intuitive to see that the RGB data line and its terminal to be detected have failed, but also easy to find the failed RGB data line and its terminal, saving inspection and maintenance costs and improving work efficiency.

[0040] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for detecting RGB data line and terminal faults, characterized in that: include: The first step is to save the color picture generated by the RGB data line and its terminals in the normal state according to the color data bit display information, and generate a standard detection page; the display information includes color information and position information, each color information and position information will form a small color picture, and then the small color pictures are sequentially formed into a large color picture, which is called a standard detection page; The standard detection page is composed of color images corresponding to no more than 24 color data bits, and each color image is composed of a pure color background image superimposed on a pure color front image; The color thumbnail is composed of the color information and position information on each color data bit of the RGB data line and its terminal, arranged in the order of R7-R3, G7-G2, B7-B3, and each color thumbnail is composed of a pure color background image superimposed on a pure color front image, specifically: the RGB data line and its terminal have the following display elements: red data bit (R7, R6, R5, R4, R3, R2, R1, R0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; green data bit (G7, G6, G5, G4, G3, G2, G1, G0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; blue data bit (B7, B6, B5, B4, B3, B2, B1, B0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; The second step is to obtain the color corresponding to the color data bit of the RGB data line to be detected and its terminal; The third step is to determine the matching result between the color corresponding to the color data bit of the RGB data line to be detected and its terminal and the standard detection page; If they match, the color picture of the standard detection page in normal state is displayed; if they do not match, the color picture of the standard detection page different from that in normal state is displayed, which means that when the color at the mismatching position displayed on the standard detection page is white, it indicates that the RGB data line to be detected and its terminal are faulty.

2. The RGB data line and terminal fault detection method according to claim 1, characterized in that: The second step is to use a camera plus a structured light source to collect images of the solder joints of the RGB data lines to be detected and their terminals on the circuit board, and extract the colors corresponding to the color data bits in the image.

3. The RGB data line and terminal fault detection method according to claim 1, characterized in that: The judgment matching result of the third step means: when the match occurs, the color picture of the standard detection page in the normal state is displayed, indicating that the RGB data line to be detected and its terminal are not faulty; when the mismatch occurs, the color picture of the standard detection page different from the normal state is displayed, indicating that the RGB data line to be detected and its terminal are faulty.

4. The RGB data line and terminal fault detection method according to claim 1, characterized in that: When the color of the unmatched position displayed on the standard detection page is white and / or continuous white, it means that the RGB data line and its terminal have a cold solder joint and / or a continuous solder joint.

5. A method and system for detecting faults of RGB data lines and terminals thereof, characterized in that: include: A storage module is used to pre-store a color picture generated by the RGB data line and its terminals in a normal state according to the color data bit display information, and generate a standard detection page; wherein the standard detection page is composed of color small pictures corresponding to no more than 24 color data bits, and each color small picture is composed of a pure color background picture superimposed on a pure color front picture; The color thumbnail is composed of the color information and position information on each color data bit of the RGB data line and its terminal, arranged in the order of R7-R3, G7-G2, B7-B3, and each color thumbnail is composed of a pure color background image superimposed on a pure color front image, specifically: the RGB data line and its terminal have the following display elements: red data bit (R7, R6, R5, R4, R3, R2, R1, R0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; green data bit (G7, G6, G5, G4, G3, G2, G1, G0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; blue data bit (B7, B6, B5, B4, B3, B2, B1, B0), connecting the respective data line and its terminal from the highest bit 7 to the lowest bit 0; A detection module, used to obtain the color corresponding to the color data bit of the RGB data line to be detected and its terminal; A judgment module, used for judging the matching result between the color corresponding to the color data bit of the RGB data line to be detected and its terminal and the standard detection page; The display module is used to display the matching result after judgment. If it matches, the color picture of the standard detection page in normal state is displayed; if it does not match, the color picture of the standard detection page different from the normal state is displayed, which means that when the color at the non-matching position displayed on the standard detection page is white, it means that the RGB data line to be detected and its terminal are faulty.

6. The RGB data line and terminal fault detection method system according to claim 5, characterized in that: The detection module generates the color of the color data bit corresponding to the color of the RGB data line to be detected and its terminal by acquiring the image of the solder joints of the RGB data line to be detected and its terminal on the circuit board by using a camera plus a structured light source.

7. The RGB data line and terminal fault detection method system according to claim 5, characterized in that: The judgment module judges the matching result of the color picture generated by the color data bits corresponding to the RGB data line to be detected and the terminal thereof and the picture of the standard detection page. If they match, the display module displays the color picture of the standard detection page in a normal state, indicating that the RGB data line and the terminal thereof are fault-free; if they do not match, the display module displays the color picture of the standard detection page that is different from the normal state, indicating that the RGB data line to be detected and the terminal thereof are faulty.

8. The RGB data line and terminal fault detection method system according to claim 7, characterized in that: When the display module displays the standard detection page in a color different from the normal state, which is white and / or continuous white, it means that the RGB data lines and their terminals are poorly soldered and / or connected.

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