Indicating light optical state automatic test method and system

Abstract

The invention discloses an indicating light optical state automatic test method and system. The method includes the following steps that: 1) images of an indicating light is acquired in real time with preset acquisition rate when tested equipment is in a designated work status; 2) image processing is performed on each frame of acquired image, and corresponding lit and extinguished states of the indicating light in each frame of image are identified; 3) the lasting time of the lit state or the extinguished state and the frequency of flickering states formed by the alternation of the lit state or the extinguished state are calculated, so that an optical state detection result of the indicating light can be obtained; and 4) the optical state detection result is compared with a preset optical state, and whether the optical states of the indicating light accord with design requirements is judged according to a comparison result. The system includes a corresponding image acquisition module, an image processing and identification module, an optical state detection module and a test result analysis module. The indicating light optical state automatic test method and system of the invention have the advantages of simplicity in realization and high accuracy of test results. With the indicating light optical state automatic test method and system adopted, the optical state of the indicating light can be tested directly.

Description

technical field [0001] The invention relates to the technical field of indicator light testing, in particular to a method and system for automatically testing the optical state of an indicator light. Background technique [0002] At present, all kinds of electronic / electrical equipment are usually equipped with indicator lights in order to observe the working status of the equipment, and the indicator lights are lit or extinguished for a specific period of time according to the working status of the equipment, or alternately lit and extinguished at a certain frequency flashes to indicate the current working status of the device. The user can judge the current working state of the electronic / electrical equipment by observing the light on or off time of the indicator light or the optical state of a specific flicker frequency. [0003] In order to ensure that when the electronic / electrical equipment is actually running, the indicator light can correctly perform actions such as...

AI Technical Summary

Problems solved by technology

There are two disadvantages in this type of method: a. due to the detection of the voltage or current of the indicator light, an electrical interface needs to be reserved on the hardware, which increases the complexity of hardware design and increases the cost of hardware manufacturing; b. because this test method is The status information of the indicator light is obtained indirectly through the voltage or current status information of the indicator light. In some cases, misjudgment may occur. For example, if only the indicator light is damaged but other electrical parts of the device are not damaged, the indicator light will eventually be On, off, or flashing at a certain frequency does not correspond to the voltage or current state information of the indicator light, so only the voltage or current state information of the indicator light cannot accurately reflect the final optical state of the indicator light

[0005] The second is the method of manual observation, which is to observe the optical state of the light on and off through the human eye, and then rely on the manual to judge the current working state of the equipment based on the observation results. Obviously, this method cannot accurately obtain the flickering frequency of the light

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