Automatic test system based on character recognition

Abstract

The invention discloses an automatic test system based on character recognition. The automatic test system based on character recognition comprises a testing terminal and an image collecting device. The image collecting device is used for collecting the actually output image of a display device to be tested, and transmitting the actually output image to the testing terminal. The testing terminal is further used for intercepting a specified area image of the actually output image, recognizing an actual character string of output information of the specified area image and judging whether the character string is the same as a corresponding standard character string. If the actual character string is the same as the corresponding standard character string, the information that a test is normal is produced; if the actual character string is not the same as the corresponding standard character string, the information that the test is abnormal is produced. The automatic test system based on character recognition is automatic, fast and simple. Reliability of testing efficiency and the test result of the display device is improved, and research and development time and cost of the display device can be further reduced effectively.

Description

technical field [0001] The invention relates to the technical field of display device testing, in particular to an automatic testing system based on character recognition. Background technique [0002] At present, most of the products in the field of digital TV technology, such as monitors, TV sets, set-top boxes, advertising machines, etc., usually need to perform performance tests on their items in order to ensure the system performance of the products during the development process. [0003] A display device refers to a device that transmits and processes information in the form of visible light. It can provide video low-voltage differential signaling (LVDS for short), digital video interface ( Digital Video Interface (DVI for short) signal, High Definition Multimedia Interface (HDMI for short) signal or Composite Video Broadcast Signal (CVBS for short) signal transmission. Currently, display devices mainly include monitors, televisions, and various video playback termin...

AI Technical Summary

Problems solved by technology

[0004] Because the test process of the receiving performance index of the display device is very cumbersome, it is mainly reflected in the many test items, the test process is complicated, and the test forms are various.

The test process of most display devices is simple and repetitive, and the test of each item of the display device is controlled by manually operating the keypad or infrared remote control, and subjectively judges whether the output image of the display device is consistent The setting of the input signal and the expected conformity are used as a sign to detect whether the system performance of the display device is normal. Obviously, this test method takes a long time, and the test results are subject to the subjective factors of the tester (such as the concentration of the tester, etc.) It is very easy to miss and mistest during the test

[0005] In the entire product development process, artificially controlled testing methods consume a lot of human resources, and lead to high product development costs, long cycles, and unreliable test results, which may even lead to serious consequences such as product quality decline.

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