Automated Audio Video Signal Testing System
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Solution Overview
Problem
Current methods for testing audio/video processing functions in digital televisions are inefficient, relying on manual labor and prone to errors, requiring a more automated and cost-effective solution.
Innovation Solution
A testing system and method that automatically analyze audio/video signals through multiple interfaces (RF, VGA, HDMI, CVBS, YPbPr) using a switching module and determining unit to assess signal quality and display results, enabling automated testing of audio/video playback apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual testing by eyes or screen capture is used, then testing can be performed, but it is wasteful of manpower and cost and prone to misjudgments
Solution Approach 1:
The patent replaces manual visual inspection with an automated testing system that uses signal analysis to detect audio/video processing functions. The testing apparatus automatically sends test signals through various interfaces (HDMI, VGA, CVBS, YPbPr, RF) and analyzes the output signals to determine processing status, eliminating the need for human operators to visually examine screens or capture images.
Solution Approach 2:
The testing system enables the audio/video playback apparatus to self-test its own processing functions. The apparatus receives test signals, processes them through its audio/video processing unit, and the system automatically analyzes whether the processing is normal based on the output signals, allowing the device to assess its own functionality without external manual intervention.
2Productivity
If automated testing is implemented, then productivity and accuracy improve, but device complexity increases
Solution Approach 1:
The testing apparatus is designed with multi-functionality to handle multiple audio/video interfaces (HDMI, VGA, CVBS, YPbPr, RF) through a single switching module. This universal design allows one testing system to test various interface types and processing functions, reducing the need for separate testing equipment for each interface type and thereby managing complexity while maintaining high productivity.
3Adaptability or versatility
If multiple audio/video interfaces are tested, then adaptability improves, but testing time and complexity increase
Solution Approach 1:
The testing system continuously tests multiple audio/video interfaces in sequence without interruption. The switching module automatically switches between different interface types (HDMI, VGA, CVBS, YPb_pr, RF), and the audio/video processing unit continuously processes test signals through each interface, enabling comprehensive multi-interface testing to be completed in a single continuous operation rather than requiring separate testing sessions for each interface.
Data Source
AI summary
A testing system and a method thereof are provided. The testing system includes an audio/video playback apparatus and a testing apparatus. The audio/video playback apparatus is configured to receive an audio/video signal, and analyze the audio/video signal to generate a signal analysis result and a processed audio/video signal. The processed audio/video signal is configured to be displayed on a screen of the audio/video playback apparatus. The testing apparatus includes a switching module and a determining unit. The switching module controls at least one audio/video transmission interface of the audio/video playback apparatus, so as to select and transmit the corresponding audio/video signal to the audio/video playback apparatus. When the switching module transmits the audio/video signal to the audio/video playback apparatus, the determining unit receives and analyzes the signal analysis result, so as to determine whether the processed audio/video signal is normally processed by the audio/video playback apparatus.