Labview-based multi-type signal online testing system

Abstract

The invention discloses a Labview-based multi-type signal online testing system, which comprises an industrial control computer (1), wherein the industrial control computer (1) is respectively connected with a PLC control system (2) and a signal source (3), the PLC control system (2) is connected with a T-CON board testing fixture (4), the T-CON board testing fixture (4) is connected with signal acquisition and transmission equipment (5), and the signal acquisition and transmission equipment (5) is connected with the industrial control computer (1) through a data line; and the industrial control computer (1) is used for processing image signals and analog-digital signals which are output by a T-CON board to be tested and acquired by the signal acquisition and transmission equipment (5), comparing the processed signals with standard values, and judging whether the T-CON board to be tested is qualified or not through comparative results. According to the Labview-based multi-type signal online testing system, the T-CON board is tested automatically so that the testing results are more precise and direct, the production efficiency is improved and the missing test ratio is reduced.

Description

technical field [0001] The invention relates to the field of equipment communication and signal processing, in particular to a Labview-based online test system for multiple types of signals. Background technique [0002] With the development of science and technology and the progress of society, liquid crystal displays have completely replaced traditional CRT displays. Liquid crystal displays have completely occupied the display market due to their characteristics of no radiation, no flicker, small size, and low power consumption. With the passage of time, the application fields of liquid crystal displays will become wider and wider. [0003] As an important component of the liquid crystal display, the liquid crystal timing drive control board (T-CON board) is also expanding in scale with the development of the liquid crystal display market. Therefore, how to control production costs, improve production efficiency and product quality has become an important issue in the pro...

AI Technical Summary

Problems solved by technology

The traditional test system mainly judges whether the T-CON board test is qualified through manual methods and manual subjective visual inspection. Such an operation method only depends on personal subjective judgments, which is not conducive to mass production lines and seriously affects T-CON boards. The detection efficiency of board products is high, and at the same time, the missed detection rate of T-CON board defective products is high

Images