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Television machine vibration test method

A test method and TV technology, applied in TV, electrical components, image communication, etc., can solve the problems of TV entering the market, loss of company and brand image, and low judgment accuracy, so as to improve the efficiency and accuracy of camera shock testing Sexuality and the effect of reducing the labor cost of testing

Active Publication Date: 2015-10-21
QINGDAO GOERTEK
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Problems solved by technology

[0002] The current TV set test specifications require the test of whether there is organic vibration, but the current test of machine vibration is based on the subjective evaluation of the human ear, which is time-consuming, laborious, inefficient, and the accuracy of judgment is low, which will cause organic vibration and abnormal noise. The introduction of TVs into the market has caused indelible image loss to the company and brand. Based on this, how to invent a TV camera vibration test method, which can conduct industrial intelligent testing of TV camera vibrations, and improve the efficiency and accuracy of camera vibration testing. Property is the technical problem that the present invention mainly solves

Method used

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Embodiment 1

[0022] Embodiment 1, this embodiment proposes a kind of TV set shake test method, such as figure 1 As shown, it is a block diagram of the hardware modules involved in the TV camera shake test method, including the first sampling module, the second sampling module, the analog-to-digital conversion module, the storage module, the output module, and the differential calculation module. From the aspect of space layout , the first sampling module is set at a position close to the TV under test, and the second sampling module is set at a position away from the TV under test for collecting background noise signals, and the TV set shake test method includes the following step:

[0023] S1. In the sampling workshop environment, the TV under test plays a standard sweep tone signal, and the first sampling module and the second sampling module simultaneously collect signals of at least one standard sweep tone signal period, wherein the collected by the first sampling module The signal is...

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Abstract

The invention discloses a television machine vibration test method, which comprises the steps that: (1) a tested television plays standard sweep frequency sound signals in a sampling workshop environment, a first sampling module and a second sampling module acquires signals in at least one standard sweep frequency sound signal period simultaneously, the two paths of signals are subjected to analog-to-digital conversion through an analog-to-digital conversion module and then sent to a difference operation module, the difference operation module performs difference operation to obtain a structure abnormal sound signal; (2) and the obtained structure abnormal sound signal is compared with a threshold value, and a conclusion whether the machine vibration test is qualified or not is obtained and output. According to the television machine vibration test method, composite signals and background noise signals are acquired respectively through arranging two paths of acquisition modules, the structure abnormal sound signal which is capable of reflecting machine vibration condition can be obtained after difference operation through the difference operation module, the machine vibration condition is analyzed through comparing and analyzing the structure abnormal sound signal, the machine vibration test efficiency and accuracy are improved, and the test manpower cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of television testing, and in particular relates to a method for testing television set shakes. Background technique [0002] The current TV set test specifications require the test of whether there is organic vibration, but the current test of machine vibration is based on the subjective evaluation of the human ear, which is time-consuming, laborious, inefficient, and the accuracy of judgment is low, which will cause organic vibration and abnormal noise. The introduction of TV sets into the market has caused indelible image loss to the company and brand. Based on this, how to invent a TV shake test method, which can conduct industrial intelligent tests on TV shake, and improve the efficiency and accuracy of the shake test. Sexuality is the technical problem that the present invention mainly solves. Contents of the invention [0003] In order to solve the technical problems of low efficiency and low reli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/04
Inventor 董坤
Owner QINGDAO GOERTEK
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