TWM496777U - Display interface test system based on two-dimensional code - Google Patents

Description

System for testing display interface by QR code

This creation is a test system for a digital device, and more specifically, a system for testing a display interface by a two-dimensional code.

The external display interface of the notebook computer includes a video display adaptation interface VGA, a high-definition multimedia interface HDMI, a high-definition digital display interface Display Port, and a digital display interface DVI. In the production of notebook computers, it is necessary to test the display effect of the external display interface of the notebook computer.

During the test of the external display interface of the notebook, the following problems usually occur:

(1) The external display interface is damaged and cannot be switched to the external display;

(2) The external display interface pins are damaged, causing problems such as different colors, stripes, water ripples, etc. in the external display;

(3) The external display interface of the external display interface is unstable, resulting in an external display splash screen;

(4) The external display interface is externally connected to the display screen and cannot be fully displayed.

In the prior art, when testing the external display interface of the notebook computer, it is necessary to connect to the external display through the external display interface, and switch the local screen to the external display by using the software, and generate a random number, and the operator observes the display effect. . The operator checks whether the display is abnormal, has a different color, and enters the observed random number in the program window.

However, the above test method has the following disadvantages:

(1) The above test method requires purchasing and maintaining an external display, and the cost of procurement and maintenance of the external display is high;

(2) The above test method requires the operator to view the display effect of the external display and input random numbers by using the keyboard, which results in long test time and low efficiency, and increases the labor cost generated by the notebook computer;

(3) The above test method is mainly to artificially judge the display result, which leads to the subjectivity of the test result is too strong;

(4) The above test method has insufficient foolproofness, and the operator often only pays attention to the random number, and ignores the observation of the display effect displayed on the external display.

In view of this, the purpose of the present invention is to provide a system for testing a display interface by using a two-dimensional code, which is to perform a display test of a notebook computer by using a camera device and an image analysis algorithm to ensure the production flow of the notebook computer. Under the premise of the stability and accuracy of online testing, the operator's actions during the testing process are effectively reduced, thereby reducing labor costs and improving production efficiency.

To achieve the above and other objects, the present invention provides a system for testing a display interface by a two-dimensional code, wherein the system includes: a notebook computer; an external display, which is connected to the notebook through an external display interface of the notebook computer. a computer connected to display a plurality of two-dimensional code images; and a camera device connected to the notebook computer for capturing an image displayed on the external display; wherein the notebook computer is used for The external display is controlled to display a plurality of two-dimensional code images, and the image captured by the camera device is analyzed to determine whether the external display interface of the notebook computer is good.

In an embodiment of the present invention, the camera device employs a USB camera or an analog camera.

In an embodiment of the present invention, a test module is stored in the notebook computer, and the test module is configured to analyze an image captured by the camera device to determine whether the external display interface of the notebook computer is good. .

Based on the above, the system provided by this creation to test the display interface by QR code has the following unpredictable effects:

(1) It is no longer necessary to manually view the display effect of the external display, and avoid subjective judgment on the display effect;

(2) Using an external camera to analyze the display effect of the external display, and enhancing the test coverage;

(3) High test efficiency and low labor cost.

In order to make the above features and advantages of the present invention more comprehensible, the following embodiments are described in detail with reference to the accompanying drawings.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate other advantages and functions of the present invention from the disclosure of the present disclosure. The present invention can also be implemented or applied by various other specific embodiments. The details of the present specification can also be modified and changed without departing from the spirit of the present invention.

It should be noted that the structures, proportions, sizes, etc., which are illustrated in the drawings are only used to cope with the contents disclosed in the specification for understanding and reading by those skilled in the art, and are not intended to limit the creation. The qualifications that can be implemented are not technically meaningful. Any modification of the structure, change of the proportional relationship or adjustment of the size should not fall under the influence of the creation and the purpose of the creation. Within the scope of the technical content disclosed in this creation. In the meantime, the terms "upper", "lower", "one" and "bottom" as used in the specification are merely for convenience of description, and are not intended to limit the scope of the invention. Changes or adjustments to a relationship are considered to be within the scope of the creation of the creation of the product without substantial changes.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic structural diagram of a system for testing a display interface by a two-dimensional code according to the present invention; FIG. 2 is a flow chart showing the operation method of the system for testing a display interface by using a two-dimensional code. Figure. As shown in the figure, the system for testing the display interface by the two-dimensional code of the present invention includes a notebook computer 1, an external display 2, and a camera device 3. The external display 2 is connected to the notebook computer 1 through an external display interface; the camera device 3 is connected to the notebook computer 1 through a data line. The notebook computer 1 to be tested controls the external display 2 to display a plurality of two-dimensional codes, and analyzes the image displayed on the external display 2 captured by the camera device 3 by using the test module stored thereon to determine the notebook computer. 1 The external display interface is good. The camera device 3 can employ a USB camera or an analog camera.

Specifically, the working method of the system for testing the display interface by the two-dimensional code of the present invention includes the following steps:

Step S1: switching the display of the notebook computer to the external display mode, and displaying the plural two-dimensional code on the external display screen;

Preferably, since the display effects on the four corners of the display are unstable and susceptible, four four-dimensional codes are displayed on the four corners of the external display to better test the external display interface of the notebook. At the same time, a two-dimensional code is displayed in the center of the external display. Among them, the central two-dimensional code is divided into four parts. The four QR codes of the four corners and the central two-dimensional code can be in any of the following formats:

(1) The four two-dimensional codes of the four corners are black and white two-dimensional codes whose base color is white, and the four parts of the central two-dimensional code are respectively colored two-dimensional codes of red, blue, white and green. ;

(2) The four two-dimensional codes of the four corners are respectively colored two-dimensional codes of red, blue, white and green, and the central two-dimensional code is a black and white two-dimensional code whose base is white.

Among them, the black and white two-dimensional code is used to test the image offset, and the color two-dimensional code is used to test the image heterochromatic. The four parts of the central two-dimensional code can be equal or large.

Step S2: using a camera to capture an image on an external display screen;

Step S3: analyzing the two-dimensional code in the image captured by the camera, and decoding the two-dimensional code, and determining whether the captured image includes all the two-dimensional codes displayed on the external display at the same time;

Specifically, first, the pixel weight is obtained from the RGB values of each primitive point of the two-dimensional code in the captured image, that is, the pixel weight V=R/3 + G/3 + B/3. If V is less than the preset value, V is 0; if V is greater than or equal to the preset value, V is 255. That is, a grayscale two-dimensional code image of the two-dimensional code image in the captured image is obtained. The preset value may be determined according to an operation experience or a structure of a two-dimensional code. For example, if the preset value is 40, then when V<40, V takes a value of 0; when V>=40, V takes a value of 255.

Then, the generated gray-scale two-dimensional code image is decoded, and if all the two-dimensional codes can be decoded, it is determined that the captured image includes all the two-dimensional codes displayed on the external display, if there is one or Some two-dimensional codes cannot be decoded, and it is judged that all the two-dimensional codes displayed on the external display are not included in the captured image.

The principle of judging whether the two-dimensional code can be decoded is as follows: if the background color of the two-dimensional code is not displayed or displayed poorly, the pixel point corresponding to the background color is displayed as black in the gray-scale two-dimensional code image; In the two-dimensional code image, the color of the ground color and the two-dimensional code are both represented as black, which causes the gray-scale two-dimensional code image to be unable to be decoded.

Step S4: If all the two-dimensional codes displayed on the external display are included, it is judged that the external display interface of the current notebook computer is good, and the test ends; otherwise, the process proceeds to step S5;

Step S5: determining whether the test time exceeds the rated test time. If the rated test time is not exceeded, the steps S1-S4 are repeated; if the rated test time is exceeded, it is determined that the external display interface of the current notebook computer is bad, and the test ends.

In summary, the system for testing the display interface by the two-dimensional code no longer needs to manually view the display effect of the external display, avoiding subjective judgment on the display effect; at the same time, using an external camera to analyze the external display Display performance, enhanced test coverage, improved test efficiency, and reduced labor costs. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above embodiments are intended to illustrate the principles of the present invention and its effects, and are not intended to limit the present invention. Anyone skilled in the art can modify the above embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation should be as listed in the scope of patent application described later.

1‧‧‧Note Computer
2‧‧‧External display
3‧‧‧ camera
S1-S5‧‧‧ steps

1 shows a schematic structural diagram of a system for testing a display interface by a two-dimensional code for the present creation;

FIG. 2 is a flow chart showing the operation method of the system for testing the display interface by the two-dimensional code for the present invention.

1‧‧‧Note Computer

2‧‧‧External display

3‧‧‧ camera

Claims (4)

A system for testing a display interface by a two-dimensional code, wherein the system comprises: a notebook computer; an external display connected to the notebook computer through an external display interface of the notebook computer, and is used for displaying a plurality of two a code image device; and a camera device connected to the notebook computer for capturing an image displayed on the external display; wherein the notebook computer is configured to control the external display to display a plurality of two-dimensional code images For example, the image captured by the camera device is analyzed to determine whether the external display interface of the notebook computer is good. A system for testing a display interface by a two-dimensional code as described in claim 1, wherein the camera device employs a USB camera. A system for testing a display interface by a two-dimensional code as described in claim 1, wherein the camera device employs an analog camera. The system for testing a display interface by a two-dimensional code as described in claim 1, wherein the notebook computer stores a test module for performing an image captured by the camera device. Analysis to determine if the external display interface of the notebook is good.